.pep-wrap,.pep-study-app{font-family:inherit;color:inherit}
.pep-kicker{display:inline-block;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:#0f766e;margin-bottom:.35rem}
.pep-button,.pep-mode-link,.pep-sidebar-toggle{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:14px;border:1px solid transparent;background:#0f5f52;color:#fff!important;text-decoration:none!important;font-weight:700;cursor:pointer;transition:.15s ease box-shadow,.15s ease transform,.15s ease background}
.pep-button:hover,.pep-mode-link:hover,.pep-sidebar-toggle:hover{transform:translateY(-1px);background:#0a4f45}.pep-button-soft{background:#fff!important;color:#0f172a!important;border-color:#dbe2ea}
.pep-wrap a{text-decoration:none}
.pep-session-header,.pep-study-app{max-width:1280px;margin:24px auto;padding:0 16px}
.pep-session-card{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(260px,.95fr);gap:18px;background:linear-gradient(135deg,#f7fbfb,#eef8f6);border:1px solid #dbe7e2;border-radius:24px;padding:24px;box-shadow:0 16px 38px rgba(15,23,42,.05)}
.pep-session-main h2{margin:.1rem 0 .55rem;font-size:clamp(1.55rem,2.25vw,2.15rem)}.pep-session-text{margin:0 0 12px;color:#475569;max-width:640px}
.pep-session-stats{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0}.pep-badge,.pep-chip{display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;background:#fff;border:1px solid #dbe2ea;color:#334155;font-size:.92rem}
.pep-select-mode{font-weight:700;margin:14px 0 8px;color:#0f172a}.pep-mode-switch{display:flex;flex-wrap:wrap;gap:10px}.pep-mode-link{background:#fff!important;color:#0f172a!important;border-color:#dbe2ea}.pep-mode-link.is-active{background:#0f5f52!important;color:#fff!important;border-color:#0f5f52}
.pep-session-side{background:#fff;border:1px solid #dbe2ea;border-radius:18px;padding:16px}.pep-category-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.pep-study-app{--pep-card:#ffffff;--pep-text:#0f172a;--pep-muted:#64748b;--pep-border:#dbe2ea;--pep-accent:#0f5f52;--pep-soft:#f4f7fb;--pep-soft-2:#edf3f8;--pep-light:#e5e7eb;--pep-success:#22c55e;--pep-danger:#f97316;--pep-review:#7c3aed}
body.pep-theme-dark .pep-study-app{--pep-card:#111b2a;--pep-text:#e5eef7;--pep-muted:#94a3b8;--pep-border:#29364a;--pep-accent:#2dd4bf;--pep-soft:#132132;--pep-soft-2:#0f1a29;--pep-light:#334155}
.pep-study-app[data-textsize="small"]{font-size:14px}.pep-study-app[data-textsize="medium"]{font-size:16px}.pep-study-app[data-textsize="large"]{font-size:18px}
.pep-exam-intro{margin-bottom:20px}.pep-exam-intro-card{background:var(--pep-card);color:var(--pep-text);border:1px solid var(--pep-border);border-radius:24px;padding:24px;box-shadow:0 20px 46px rgba(15,23,42,.06)}.pep-exam-intro-card h3{margin-top:0;margin-bottom:12px;font-size:1.35rem}.pep-intro-meta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:16px;color:var(--pep-text)}.pep-intro-table{width:100%;border-collapse:collapse;background:var(--pep-soft);border-radius:16px;overflow:hidden}.pep-intro-table th,.pep-intro-table td{padding:12px 14px;border:1px solid var(--pep-border);text-align:left}.pep-intro-note{margin:16px 0;color:var(--pep-muted)}
.pep-study-workspace.is-hidden{display:none}
.pep-study-shell{display:grid;grid-template-columns:minmax(0,1fr) 28px 340px;gap:18px;align-items:start}.pep-study-main{min-width:0}.pep-question-stage{display:grid;gap:18px}
.pep-question{background:var(--pep-card);color:var(--pep-text);border:1px solid var(--pep-border);border-radius:28px;padding:24px;box-shadow:0 18px 42px rgba(15,23,42,.05)}
.pep-card-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--pep-border)}.pep-card-paper-title{margin:.1rem 0 .35rem;font-size:1.22rem}.pep-card-progress{margin:0;color:var(--pep-muted);font-weight:600}.pep-report-corner{margin-top:4px;white-space:nowrap}
.pep-question-top{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:14px}.pep-question-number{font-weight:800;font-size:1rem}.pep-question-meta{color:var(--pep-muted);font-weight:600}.pep-question-title{margin:0 0 18px;font-size:1.24em;line-height:1.5}
.pep-options{display:grid;grid-template-columns:1fr 1fr;gap:14px}.pep-option{display:flex;align-items:center;gap:14px;width:100%;padding:14px 16px;border:1px solid var(--pep-border);border-radius:18px;background:var(--pep-soft);color:var(--pep-text);text-align:left;cursor:pointer;font:inherit}.pep-option:hover{border-color:var(--pep-accent)}.pep-option.is-selected{border-color:var(--pep-accent);box-shadow:0 0 0 2px rgba(15,95,82,.1)}.pep-option[disabled]{opacity:1;cursor:not-allowed}.pep-option.pep-right{background:#ecfdf5;border-color:#22c55e}.pep-option.pep-wrong{background:#fff7ed;border-color:#f97316}.pep-option-letter{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:999px;background:#fff;border:1px solid var(--pep-border);font-weight:800;flex:0 0 auto}
.pep-learn-answer,.pep-feedback,.pep-explanation{margin-top:16px;border-radius:18px;padding:14px 16px}.pep-learn-answer{background:#ecfdf5;color:#14532d;border:1px solid #bbf7d0}.pep-feedback{background:var(--pep-soft);color:var(--pep-text);font-weight:700}.pep-explanation{background:var(--pep-soft-2);color:var(--pep-text)}.pep-explanation-head{margin-bottom:8px}.pep-appearance-history{margin-top:12px;padding-top:12px;border-top:1px solid var(--pep-border)}.pep-appearance-history ul{margin:8px 0 0 18px}
.pep-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:16px}.pep-linklike{background:none;border:0;padding:0;color:var(--pep-accent);font:inherit;font-weight:700;cursor:pointer;text-decoration:underline}
.pep-inline-controls{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:22px;padding-top:18px;border-top:1px solid var(--pep-border)}
.pep-report-form{margin-top:16px;padding:16px;border:1px solid var(--pep-border);border-radius:18px;background:var(--pep-soft)}.pep-report-form label{display:block;margin-bottom:10px;font-weight:700}.pep-report-form select,.pep-report-form textarea,.pep-settings-content select{width:100%;padding:11px 12px;border-radius:12px;border:1px solid var(--pep-border);background:#fff;color:#0f172a;font:inherit}.pep-report-form textarea{min-height:90px}.pep-report-status{margin-top:10px;color:var(--pep-muted)}
.pep-sidebar-toggle{width:28px;min-height:170px;padding:0;border-radius:14px;background:var(--pep-card)!important;color:var(--pep-text)!important;border-color:var(--pep-border)!important;box-shadow:0 12px 30px rgba(15,23,42,.05)}.pep-sidebar-toggle span{writing-mode:vertical-rl;transform:rotate(180deg);font-weight:800;letter-spacing:.08em}
.pep-study-sidebar{min-width:0;overflow:hidden;transition:.25s ease all}.pep-sidebar-panel{display:grid;gap:18px}.pep-sidebar-card{background:var(--pep-card);color:var(--pep-text);border:1px solid var(--pep-border);border-radius:22px;padding:18px;box-shadow:0 16px 38px rgba(15,23,42,.05)}.pep-summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.pep-summary-grid div{background:var(--pep-soft);border-radius:16px;padding:12px 14px}.pep-summary-grid span{display:block;color:var(--pep-muted);font-size:.9rem;margin-bottom:4px}.pep-summary-grid strong{font-size:1.25rem}.pep-sidebar-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.pep-close-palette{border:0;background:none;color:var(--pep-muted);font-size:1.5rem;cursor:pointer}
.pep-palette-legend{display:grid;gap:8px;margin-bottom:14px}.pep-status-item{display:flex;gap:8px;align-items:center;font-size:.9rem;color:var(--pep-text)}.pep-status-dot{display:inline-block;width:12px;height:12px;border-radius:999px}.pep-status-notvisited{background:#e5e7eb}.pep-status-notanswered{background:#f97316}.pep-status-answered{background:#22c55e}.pep-status-review{background:#7c3aed}.pep-status-review-answered{background:linear-gradient(135deg,#7c3aed 70%, #f59e0b 70%)}
.pep-palette{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.pep-palette-button{position:relative;width:100%;min-height:48px;border-radius:999px;border:1px solid transparent;background:#e5e7eb;color:#0f172a;font-weight:800;cursor:pointer}.pep-palette-button.is-current{box-shadow:0 0 0 3px rgba(15,95,82,.18)}.pep-palette-button.is-notvisited{background:#e5e7eb;color:#374151}.pep-palette-button.is-notanswered{background:#f97316;color:#fff}.pep-palette-button.is-answered{background:#22c55e;color:#fff}.pep-palette-button.is-review{background:#7c3aed;color:#fff}.pep-palette-button.is-review-answered{background:#7c3aed;color:#fff}.pep-palette-button.is-review-answered::after{content:'';position:absolute;right:3px;top:3px;width:10px;height:10px;border-radius:999px;background:#f59e0b}
.pep-display-settings summary{cursor:pointer;font-weight:700}.pep-settings-content{display:grid;gap:12px;margin-top:12px}.pep-settings-content label{display:grid;gap:6px;font-weight:700}.pep-score{margin-top:16px;padding:14px 16px;border-radius:18px;background:var(--pep-soft);font-weight:700;color:var(--pep-text)}.pep-score:empty{display:none}
.pep-study-app.is-sidebar-collapsed .pep-study-shell{grid-template-columns:minmax(0,1fr) 28px 0px}.pep-study-app.is-sidebar-collapsed .pep-study-sidebar{opacity:0;pointer-events:none}.pep-study-app.is-sidebar-collapsed .pep-sidebar-toggle span{transform:rotate(0deg);writing-mode:horizontal-tb}
.pep-mobile-bottom-nav{display:none;position:sticky;bottom:12px;z-index:25;margin-top:18px;background:rgba(255,255,255,.96);border:1px solid #dbe2ea;border-radius:18px;padding:12px 14px;backdrop-filter:blur(8px);gap:12px;align-items:center;justify-content:space-between}body.pep-theme-dark .pep-mobile-bottom-nav{background:rgba(17,27,42,.96);border-color:#29364a}.pep-mobile-page{font-weight:700;color:var(--pep-text)}
@media (max-width: 1024px){.pep-session-card{grid-template-columns:1fr}.pep-study-shell{grid-template-columns:1fr}.pep-sidebar-toggle{position:fixed;right:14px;top:50%;transform:translateY(-50%);z-index:42;min-height:90px}.pep-study-sidebar{position:fixed;right:0;top:0;bottom:0;width:min(360px,92vw);padding:18px;background:rgba(15,23,42,.38);z-index:40;justify-content:flex-start;visibility:hidden;opacity:0;transition:.18s ease opacity}.pep-study-app.is-palette-open .pep-study-sidebar{visibility:visible;opacity:1}.pep-study-sidebar .pep-sidebar-panel{transform:translateX(16px);transition:.18s ease transform}.pep-study-app.is-palette-open .pep-study-sidebar .pep-sidebar-panel{transform:none}.pep-close-palette{display:inline-block}.pep-options{grid-template-columns:1fr}.pep-mobile-bottom-nav{display:flex}}
@media (max-width: 640px){.pep-session-header,.pep-study-app{padding:0 12px}.pep-question,.pep-sidebar-card,.pep-exam-intro-card{padding:18px}.pep-card-head{flex-direction:column}.pep-card-head-tools{width:100%;display:flex;justify-content:flex-end}.pep-inline-controls{display:none}.pep-mobile-bottom-nav button{flex:1}.pep-summary-grid{grid-template-columns:1fr 1fr}.pep-mode-switch{display:grid;grid-template-columns:1fr}.pep-intro-table th,.pep-intro-table td{padding:10px}.pep-wrap [hidden],.pep-study-app [hidden]{display:none!important}}

/* v0.6.4: compact single-card exam layout + collapsible right rail */
.pep-study-app .pep-study-shell{display:grid;grid-template-columns:minmax(0,1fr) 30px minmax(285px,330px);align-items:start;gap:12px}
.pep-study-app .pep-study-main{min-width:0}
.pep-study-app .pep-question{display:flex;flex-direction:column;gap:0;min-height:400px;padding:clamp(16px,2.2vw,27px)}
.pep-card-head{display:flex;justify-content:space-between;align-items:start;gap:12px;margin-bottom:20px;padding-bottom:13px;border-bottom:1px solid var(--pep-border)}
.pep-card-paper-title{font-size:clamp(1rem,1.5vw,1.3rem);line-height:1.3;margin:0 0 7px;font-weight:750}
.pep-card-progress{font-size:.92rem;color:var(--pep-muted);margin:0}
.pep-card-head-copy{min-width:0}.pep-report-corner{font-size:.875rem;white-space:nowrap;margin-top:5px;text-underline-offset:3px}
.pep-question-top{margin-bottom:14px}.pep-question-title{margin-bottom:20px}
.pep-inline-controls{display:flex;align-items:center;justify-content:flex-start;gap:10px;flex-wrap:wrap;margin-top:24px;padding-top:17px;border-top:1px solid var(--pep-border)}
.pep-inline-controls .pep-finish{margin-left:auto}
.pep-study-app .pep-sidebar-toggle{width:30px;min-height:96px;border-radius:12px;padding:0;background:var(--pep-card)!important;color:var(--pep-text)!important;border:1px solid var(--pep-border);position:sticky;top:24px;align-self:start;box-shadow:0 6px 15px rgba(15,23,42,.05);z-index:15}
.pep-sidebar-toggle span{font-size:1.6rem;line-height:1}
.pep-study-sidebar{min-width:0;overflow:hidden;transition:opacity .2s ease}
.pep-study-app.is-sidebar-collapsed .pep-study-shell{grid-template-columns:minmax(0,1fr) 30px 0px}
.pep-study-app.is-sidebar-collapsed .pep-study-sidebar{opacity:0;visibility:hidden;pointer-events:none}
.pep-study-app.is-sidebar-collapsed .pep-sidebar-toggle span{transform:rotate(180deg)}
.pep-sidebar-panel{display:grid;gap:14px}
.pep-study-app .pep-sidebar-card{margin:0}.pep-study-app .pep-palette{grid-template-columns:repeat(4,minmax(0,1fr))}
.pep-study-app .pep-score:not(:empty){margin-top:14px}
.pep-question[hidden]{display:none!important}
@media(max-width:1024px){
 .pep-study-app .pep-study-shell,.pep-study-app.is-sidebar-collapsed .pep-study-shell{grid-template-columns:minmax(0,1fr)}
 .pep-study-app .pep-sidebar-toggle{position:fixed;right:12px;top:50%;transform:translateY(-50%);width:42px;min-height:52px;border-radius:12px;z-index:100}
 .pep-study-app .pep-study-sidebar{position:fixed;top:0;right:0;bottom:0;width:min(360px,90vw);overflow:auto;z-index:99;background:var(--pep-card);box-shadow:-12px 0 30px rgba(0,0,0,.18);padding:18px;visibility:hidden;opacity:0;pointer-events:none}
 .pep-study-app.is-palette-open .pep-study-sidebar{visibility:visible;opacity:1;pointer-events:auto}
 .pep-study-app.is-sidebar-collapsed .pep-study-sidebar{visibility:hidden;opacity:0}
 .pep-mobile-bottom-nav{display:flex}
 .pep-inline-controls{padding-bottom:0}
 .pep-inline-controls .pep-prev-question,.pep-inline-controls .pep-next-question{display:none}
}
@media(max-width:640px){.pep-card-head{align-items:flex-start}.pep-card-paper-title{font-size:1rem}.pep-report-corner{font-size:.8rem}.pep-inline-controls .pep-finish{margin-left:0}.pep-study-app .pep-question{min-height:0}.pep-mobile-bottom-nav{display:flex}.pep-study-app .pep-sidebar-toggle{right:8px}}

/* v0.6.5 refinement: integrated right rail, one question counter, inline report. */
.pep-study-app .pep-study-shell{grid-template-columns:minmax(0,1fr) minmax(285px,330px);gap:0;align-items:start}
.pep-study-app .pep-study-sidebar{position:relative;overflow:visible;margin-left:14px}
.pep-study-app .pep-sidebar-toggle{position:sticky;grid-column:2;grid-row:1;justify-self:start;top:28px;z-index:16;width:25px;height:52px;min-height:52px;margin-left:1px;margin-bottom:-52px;transform:translateX(-10px);border-radius:10px 0 0 10px;border-right:0;box-shadow:none}
.pep-study-app .pep-study-sidebar{grid-column:2;grid-row:1;padding-left:0}
.pep-study-app.is-sidebar-collapsed .pep-study-shell{grid-template-columns:minmax(0,1fr) 25px}
.pep-study-app.is-sidebar-collapsed .pep-sidebar-toggle{grid-column:2;transform:none;margin-left:0}
.pep-study-app.is-sidebar-collapsed .pep-study-sidebar{max-width:0;margin:0;overflow:hidden}
.pep-study-app .pep-card-head{margin-bottom:12px;padding-bottom:10px}
.pep-study-app .pep-question-top{margin-bottom:13px}
.pep-study-app .pep-actions{display:flex;align-items:center;width:100%;gap:12px}
.pep-study-app .pep-report-inline{margin-left:auto;white-space:nowrap}
.pep-study-app .pep-card-settings{display:inline-block;position:relative;margin-top:4px;font-size:.8rem;color:var(--pep-muted)}
.pep-study-app .pep-card-settings summary{font-weight:600;cursor:pointer;list-style:auto}
.pep-study-app .pep-card-settings .pep-settings-content{position:relative;z-index:5;max-width:280px;padding:12px;border:1px solid var(--pep-border);border-radius:12px;background:var(--pep-card)}
.pep-study-app .pep-results-card:has(.pep-score:empty){display:none}
@media(max-width:1024px){
 .pep-study-app .pep-study-shell,.pep-study-app.is-sidebar-collapsed .pep-study-shell{grid-template-columns:minmax(0,1fr)}
 .pep-study-app .pep-sidebar-toggle,.pep-study-app.is-sidebar-collapsed .pep-sidebar-toggle{position:fixed;grid-column:auto;grid-row:auto;right:0;left:auto;top:48%;width:34px;height:58px;min-height:58px;margin:0;transform:translateY(-50%);border-radius:12px 0 0 12px;border:1px solid var(--pep-border)}
 .pep-study-app .pep-study-sidebar{grid-column:auto;grid-row:auto;position:fixed;right:0;top:0;bottom:0;margin:0;padding:14px;width:min(360px,92vw);background:var(--pep-card);visibility:hidden;opacity:0;pointer-events:none;overflow-y:auto;z-index:99}
 .pep-study-app.is-palette-open .pep-study-sidebar{visibility:visible;opacity:1;pointer-events:auto}
 .pep-study-app.is-palette-open .pep-sidebar-toggle{right:min(360px,92vw)}
}

/* v0.6.6: combined right rail, clear panel label, accessible typography */
.pep-study-app .pep-sidebar-combined{padding:18px 16px}
.pep-study-app .pep-sidebar-divider{height:1px;background:var(--pep-border);margin:18px -2px}
.pep-study-app .pep-palette-section{display:block}
.pep-study-app .pep-palette-legend{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 8px;margin:16px 0 19px}
.pep-study-app .pep-status-item{font-size:13px;line-height:1.35;align-items:flex-start;gap:7px}
.pep-study-app .pep-status-dot{width:12px;height:12px;min-width:12px;margin-top:3px}
.pep-study-app .pep-summary-grid span{font-size:14px;line-height:1.4;font-weight:600}
.pep-study-app .pep-summary-grid strong{font-size:23px}
.pep-study-app .pep-sidebar-top strong{font-size:18px}
.pep-study-app .pep-question-number{font-size:16px}
.pep-study-app .pep-question-meta{font-size:15px}
.pep-session-header .pep-session-side strong{font-size:17px}
.pep-session-header .pep-chip{font-size:14px;line-height:1.4}
.pep-study-app .pep-card-settings{font-size:14px}
.pep-study-app .pep-sidebar-toggle,.pep-study-app.is-sidebar-collapsed .pep-sidebar-toggle{height:auto;min-height:94px;width:36px;padding:10px 5px;box-sizing:border-box;writing-mode:vertical-rl;font-size:12px;font-weight:800;letter-spacing:.03em}
.pep-study-app .pep-sidebar-toggle span,.pep-study-app.is-sidebar-collapsed .pep-sidebar-toggle span{writing-mode:inherit;transform:none}
.pep-study-app .pep-study-shell{grid-template-columns:minmax(0,1fr) 36px minmax(285px,330px);gap:0}
.pep-study-app .pep-sidebar-toggle{grid-column:2;grid-row:1;justify-self:stretch;transform:none;margin:18px 0 0 0;border-radius:10px 0 0 10px}
.pep-study-app .pep-study-sidebar{grid-column:3;grid-row:1;margin-left:0}
.pep-study-app.is-sidebar-collapsed .pep-study-shell{grid-template-columns:minmax(0,1fr) 36px 0}
.pep-study-app.is-sidebar-collapsed .pep-sidebar-toggle{grid-column:2;transform:none}
.pep-study-app.is-sidebar-collapsed .pep-study-sidebar{grid-column:3}
@media(max-width:1024px){
 .pep-study-app .pep-study-shell,.pep-study-app.is-sidebar-collapsed .pep-study-shell{grid-template-columns:minmax(0,1fr)}
 .pep-study-app .pep-sidebar-toggle,.pep-study-app.is-sidebar-collapsed .pep-sidebar-toggle{position:fixed;right:0;top:48%;z-index:102;width:36px;min-height:100px;transform:translateY(-50%);margin:0;border-radius:10px 0 0 10px;grid-column:auto;grid-row:auto}
 .pep-study-app .pep-study-sidebar{grid-column:auto;grid-row:auto;overflow:auto}
 .pep-study-app .pep-palette-legend{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* v0.6.7 — approved responsive premium mockup adaptation, original CSS. */
.pep-session-header,.pep-study-app{max-width:1340px}
.pep-session-header .pep-session-card{background:linear-gradient(135deg,#f5fbfa,#edf9f6);border-color:#d7e6e2;box-shadow:0 16px 40px rgba(12,66,55,.06)}
.pep-session-header .pep-session-main h2{font-weight:800;letter-spacing:-.025em}
.pep-session-header .pep-session-side{background:transparent;border:0;box-shadow:none}
.pep-session-header .pep-session-side strong{font-size:16px}
.pep-session-header .pep-category-chips{gap:8px}
.pep-session-header .pep-chip{background:#e7f5ef;border-color:transparent;font-weight:600;border-radius:999px;font-size:14px}
.pep-session-header .pep-chip:nth-child(5n+1){background:#e7f1ff;color:#21477a}
.pep-session-header .pep-chip:nth-child(5n+2){background:#f0eafe;color:#52349d}
.pep-session-header .pep-chip:nth-child(5n+3){background:#fff0e8;color:#a05022}
.pep-session-header .pep-chip:nth-child(5n+4){background:#e2f7f2;color:#086d5b}
.pep-session-header .pep-chip:nth-child(5n+5){background:#fff3d9;color:#83611e}
.pep-session-header .pep-mode-link{border-radius:12px;padding:13px 16px}
.pep-study-app .pep-study-shell{grid-template-columns:minmax(0,1fr) 35px minmax(285px,330px)}
.pep-study-app .pep-question{border-radius:23px;box-shadow:0 12px 35px rgba(15,23,42,.05)}
.pep-study-app .pep-card-head{border-bottom:0}
.pep-study-app .pep-card-paper-title{font-size:15px;font-weight:650;color:var(--pep-muted);margin-top:4px}
.pep-study-app .pep-card-head .pep-kicker{display:none}
.pep-study-app .pep-question-number{font-size:var(--pep-font-size,16px);font-weight:700}
.pep-study-app .pep-question-title{font-size:calc(var(--pep-font-size,16px) * 1.2)}
.pep-study-app .pep-option,.pep-study-app .pep-explanation,.pep-study-app .pep-learn-answer{font-size:var(--pep-font-size,16px)}
.pep-study-app .pep-option{border-radius:16px;padding:14px}
.pep-study-app .pep-inline-controls{justify-content:space-between}
.pep-study-app .pep-inline-controls .pep-finish{margin-left:auto}
.pep-study-app .pep-palette{grid-template-columns:repeat(5,minmax(0,1fr))}
.pep-study-app .pep-sidebar-combined{border-radius:20px}
.pep-study-app .pep-sidebar-toggle{width:35px;min-height:40px;writing-mode:horizontal-tb!important;position:sticky;margin-top:8px;border:0;border-radius:11px;background:transparent!important;box-shadow:none;font-size:11px;line-height:1.25;padding:6px 3px}
.pep-study-app .pep-sidebar-toggle span{writing-mode:vertical-rl;transform:none}
.pep-study-app.is-sidebar-collapsed .pep-sidebar-toggle span{writing-mode:vertical-rl;transform:none}
.pep-study-app .pep-toolbar{display:flex;justify-content:flex-end;gap:12px;margin:-6px 0 10px;position:relative;z-index:22}
.pep-study-app .pep-toolbar-settings{position:relative;color:var(--pep-text);font-size:14px}
.pep-study-app .pep-toolbar-settings>summary{list-style:none;cursor:pointer;background:var(--pep-card);border:1px solid var(--pep-border);border-radius:12px;padding:10px 16px;font-weight:700}
.pep-study-app .pep-toolbar-settings>summary::-webkit-details-marker{display:none}
.pep-study-app .pep-toolbar-settings[open] .pep-settings-content{position:absolute;top:calc(100% + 6px);right:0;width:270px;z-index:30;background:var(--pep-card);padding:18px;border-radius:16px;border:1px solid var(--pep-border);box-shadow:0 12px 32px rgba(0,0,0,.12)}
.pep-study-app .pep-settings-group{margin-bottom:14px;display:grid;gap:8px;font-weight:600}
.pep-study-app .pep-segment{display:flex;border:1px solid var(--pep-border);border-radius:12px;overflow:hidden}
.pep-study-app .pep-segment button{flex:1;border:0;background:var(--pep-soft);color:var(--pep-text);padding:10px 6px;font:inherit;cursor:pointer}
.pep-study-app .pep-segment button.is-active{background:#0f766e;color:#fff}
.pep-study-app .pep-segment button:disabled{opacity:.45;cursor:not-allowed}
.pep-study-app .pep-font-range-label{display:grid;gap:10px;font-weight:600}
.pep-study-app .pep-font-slider{width:100%;accent-color:#0f766e}
.pep-study-app .pep-mobile-panel-toggle{display:none}
@media(max-width:1024px){
 .pep-session-header .pep-session-card{display:block;padding:20px}
 .pep-session-header .pep-session-side{padding:12px 0 0}
 .pep-study-app .pep-study-shell,.pep-study-app.is-sidebar-collapsed .pep-study-shell{display:block}
 .pep-study-app .pep-sidebar-toggle{display:none}
 .pep-study-app .pep-mobile-panel-toggle{display:inline-flex;align-items:center;justify-content:center;border:0;background:none;color:#0f766e;font-weight:700;font-size:14px;padding:8px}
 .pep-study-app .pep-study-sidebar{z-index:100;box-shadow:-12px 0 35px rgba(0,0,0,.18)}
 .pep-study-app .pep-inline-controls .pep-finish{display:none}
 .pep-study-app .pep-mobile-bottom-nav{display:flex}
}
@media(max-width:640px){
 .pep-session-header .pep-session-main h2{font-size:1.45rem}
 .pep-session-header .pep-mode-switch{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
 .pep-session-header .pep-mode-link{padding:12px 5px;text-align:center;font-size:12px;line-height:1.3}
 .pep-session-header .pep-chip{font-size:12px}
 .pep-study-app .pep-question{padding:14px}
 .pep-study-app .pep-option{padding:11px}
 .pep-study-app .pep-toolbar{justify-content:space-between}
 .pep-study-app .pep-toolbar-settings>summary{padding:8px 10px;font-size:13px}
 .pep-study-app .pep-palette{grid-template-columns:repeat(4,minmax(0,1fr))}
 .pep-study-app .pep-mobile-bottom-nav{z-index:40}
}

/* v0.6.8: approved first mockup's desktop/mobile visual composition. */
.pep-session-header,.pep-study-app{width:min(100% - 24px,1280px)!important;max-width:1280px!important;margin-left:auto!important;margin-right:auto!important;box-sizing:border-box}
.pep-session-header .pep-session-card{display:grid!important;grid-template-columns:minmax(0,1.75fr) minmax(300px,1fr)!important;gap:26px!important;padding:27px 30px!important;background:linear-gradient(115deg,#fbfefe,#f0f9f7)!important;border-radius:22px}
.pep-session-header .pep-session-main{min-width:0}
.pep-session-header .pep-session-main h2{font-size:clamp(25px,2.45vw,35px)!important;line-height:1.2!important;margin:6px 0 8px}
.pep-session-header .pep-session-text{font-size:15px;color:#64748b}
.pep-session-header .pep-session-side{min-width:0;padding:7px 0 5px 25px!important;border-left:1px solid #dce9e7!important;border-radius:0!important;align-self:stretch}
.pep-session-header .pep-session-side>strong{display:block;font-size:17px!important;color:#142138;margin-bottom:15px}
.pep-session-header .pep-category-chips{display:flex!important;flex-wrap:wrap!important;gap:10px!important;align-content:flex-start}
.pep-session-header .pep-chip{display:inline-flex!important;white-space:nowrap;font-size:14px!important;line-height:1.25!important;padding:10px 14px!important;border-radius:999px!important}
.pep-session-header .pep-mode-switch{display:flex!important;gap:10px!important;flex-wrap:nowrap;margin-top:10px}
.pep-session-header .pep-mode-link{display:inline-flex!important;align-items:center;justify-content:center;gap:11px;min-height:58px;padding:12px 16px!important;flex:1 1 0;white-space:nowrap;font-size:15px!important;border-radius:12px!important;box-shadow:none!important}
.pep-session-header .pep-mode-link svg{display:block;width:25px;height:25px;flex:0 0 25px}
.pep-session-header .pep-mode-link.is-active{background:#08775e!important;color:white!important}
.pep-study-app .pep-study-workspace{position:relative;padding-top:0;display:grid;grid-template-columns:minmax(0,1fr) 335px;column-gap:16px}
.pep-study-app .pep-toolbar{grid-column:2;grid-row:1;display:flex!important;justify-content:space-between!important;gap:6px!important;align-items:center;margin:0 0 9px!important;min-height:42px}
.pep-study-app .pep-study-shell{grid-column:1 / -1;grid-row:2;grid-template-columns:minmax(0,1fr) 38px minmax(285px,335px)!important;gap:0!important;align-items:stretch}
.pep-study-app .pep-study-main{grid-column:1;grid-row:1}
.pep-study-app .pep-sidebar-toggle{grid-column:2;grid-row:1;width:38px!important;min-height:48px!important;position:sticky;align-self:start;top:26px;margin-top:0!important;padding:8px 2px!important;background:#e9f6f3!important;color:#0b6255!important;border:1px solid #d4e9e3!important;border-radius:10px 0 0 10px!important;box-shadow:none!important;font-size:11px!important}
.pep-study-app .pep-study-sidebar{grid-column:3;grid-row:1}
.pep-study-app .pep-question{padding:28px!important;min-height:0}
.pep-study-app .pep-card-paper-title{font-size:15px!important}
.pep-study-app .pep-question-number{font-size:21px!important;font-weight:600}
.pep-study-app .pep-question-title{font-size:clamp(19px,1.6vw,24px)!important}
.pep-study-app .pep-option{min-height:67px;font-size:16px}
.pep-study-app .pep-inline-controls{justify-content:space-between;gap:12px}
.pep-study-app .pep-inline-controls .pep-button{flex:1 1 0;min-height:49px}
.pep-study-app .pep-inline-controls .pep-finish{margin-left:0}
.pep-study-app .pep-sidebar-combined{border-radius:20px;padding:18px!important}
.pep-study-app .pep-summary-grid{gap:8px}
.pep-study-app .pep-summary-grid div{padding:13px 12px}
.pep-study-app .pep-palette{grid-template-columns:repeat(5,minmax(0,1fr));gap:7px}
.pep-study-app .pep-palette-button{min-height:42px}
.pep-study-app .pep-palette-legend{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 7px}
.pep-study-app .pep-toolbar-settings>summary{padding:9px 12px!important;min-width:154px}
.pep-study-app .pep-toolbar-settings[open] .pep-settings-content{width:252px}
.pep-study-app.is-sidebar-collapsed .pep-study-workspace{grid-template-columns:minmax(0,1fr) 40px}
.pep-study-app.is-sidebar-collapsed .pep-toolbar{grid-column:1 / -1;justify-content:flex-end!important}
.pep-study-app.is-sidebar-collapsed .pep-study-shell{grid-template-columns:minmax(0,1fr) 40px 0!important}
@media(max-width:1024px){
 .pep-session-header .pep-session-card{grid-template-columns:minmax(0,1fr)!important;padding:20px!important;gap:12px!important}
 .pep-session-header .pep-session-side{border-left:0!important;border-top:1px solid #dce9e7!important;padding:15px 0 0!important}
 .pep-study-app .pep-study-workspace,.pep-study-app.is-sidebar-collapsed .pep-study-workspace{display:block}
 .pep-study-app .pep-toolbar{display:flex!important;justify-content:space-between!important;min-height:48px}
 .pep-study-app .pep-study-shell,.pep-study-app.is-sidebar-collapsed .pep-study-shell{display:block!important}
 .pep-study-app .pep-sidebar-toggle{display:none!important}
 .pep-study-app .pep-study-sidebar{position:fixed;z-index:100;right:0;top:0;bottom:0;width:min(350px,91vw);visibility:hidden;opacity:0;pointer-events:none;overflow-y:auto;transform:translateX(100%);transition:transform .2s ease,opacity .2s ease}
 .pep-study-app.is-palette-open .pep-study-sidebar{visibility:visible;opacity:1;pointer-events:auto;transform:translateX(0)}
}
@media(max-width:640px){
 .pep-session-header,.pep-study-app{width:calc(100% - 16px)!important;padding:0 2px!important}
 .pep-session-header .pep-session-card{padding:17px!important;border-radius:18px}
 .pep-session-header .pep-session-main h2{font-size:21px!important}
 .pep-session-header .pep-session-text{display:none}
 .pep-session-header .pep-session-side>strong{font-size:15px!important;margin-bottom:9px}
 .pep-session-header .pep-category-chips{gap:7px!important}
 .pep-session-header .pep-chip{font-size:12px!important;padding:7px 9px!important}
 .pep-session-header .pep-mode-switch{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px!important}
 .pep-session-header .pep-mode-link{white-space:normal!important;min-height:64px;display:flex!important;flex-direction:column;gap:4px!important;padding:7px 4px!important;font-size:12px!important;line-height:1.12}
 .pep-session-header .pep-mode-link svg{width:21px;height:21px;flex:0 0 21px}
 .pep-study-app .pep-question{padding:16px!important}
 .pep-study-app .pep-question-number{font-size:19px!important}
 .pep-study-app .pep-question-title{font-size:19px!important}
 .pep-study-app .pep-option{min-height:53px;font-size:15px}
 .pep-study-app .pep-toolbar{margin-bottom:10px!important}
 .pep-study-app .pep-toolbar-settings>summary{min-width:0;padding:9px!important;font-size:13px}
}

/* v0.6.9: Mockup-approved header and exact 70/30 workspace. */
@media(min-width:1025px){
 .pep-session-header .pep-session-card{display:grid!important;grid-template-columns:minmax(0,7fr) minmax(260px,3fr)!important;gap:20px!important;align-items:start}
 .pep-session-header .pep-session-main{display:flex;flex-direction:column;min-width:0}
 .pep-session-header .pep-session-side{order:1!important;border:0!important;padding:8px 0 0!important;width:100%;background:transparent!important;box-shadow:none!important}
 .pep-session-header .pep-session-side>strong{margin:0 0 8px!important;font-size:15px!important}
 .pep-session-header .pep-category-chips{display:flex!important;flex-wrap:nowrap!important;gap:5px!important;width:100%}
 .pep-session-header .pep-chip{flex:0 1 auto!important;padding:7px 9px!important;font-size:clamp(10px,.88vw,13px)!important;white-space:nowrap!important}
 .pep-session-header .pep-select-mode{order:2!important;margin:16px 0 3px!important}
 .pep-session-header .pep-mode-switch{order:3!important;margin-top:7px!important;max-width:730px}
 .pep-session-header .pep-header-settings{grid-column:2!important;grid-row:1!important;align-self:stretch;position:relative;display:flex;flex-direction:column;justify-content:flex-start}
 .pep-header-settings>.pep-display-settings{background:#fff!important;border:1px solid #dce7ed!important;border-radius:18px!important;padding:15px!important;width:100%!important}
 .pep-header-settings .pep-display-settings>summary{font-size:16px!important;font-weight:700!important}
 .pep-header-settings .pep-settings-content{position:static!important;display:grid!important;width:100%!important;box-shadow:none!important;background:transparent!important;padding:9px 0 0!important;border:0!important}
 .pep-study-app .pep-study-workspace{display:block!important;grid-template-columns:none!important}
 .pep-study-app .pep-study-shell,.pep-study-app.is-sidebar-collapsed .pep-study-shell{display:grid!important;grid-template-columns:minmax(0,7fr) minmax(0,3fr)!important;gap:16px!important}
 .pep-study-app .pep-study-main{grid-column:1!important;grid-row:1!important}
 .pep-study-app .pep-study-sidebar{grid-column:2!important;grid-row:1!important;position:relative!important;min-width:0;overflow:visible!important;margin:0!important;opacity:1!important;pointer-events:auto!important;display:flex!important;flex-direction:column!important}
 .pep-study-app .pep-sidebar-toggle{position:relative!important;grid-column:auto!important;grid-row:auto!important;top:auto!important;width:100%!important;height:42px!important;min-height:42px!important;margin:0 0 9px!important;transform:none!important;writing-mode:horizontal-tb!important;border-radius:12px!important;font-size:14px!important;text-align:right!important}
 .pep-study-app .pep-sidebar-toggle span{writing-mode:horizontal-tb!important;transform:none!important}
 .pep-study-app .pep-sidebar-panel,.pep-study-app .pep-sidebar-card{width:100%}
 .pep-study-app.is-sidebar-collapsed .pep-sidebar-panel{display:none!important}
}
@media(max-width:1024px){
 .pep-session-header .pep-session-card{display:flex!important;flex-direction:column!important}
 .pep-session-header .pep-session-main{display:contents!important}
 .pep-session-header .pep-session-side{order:1!important;padding:0!important;border:0!important}
 .pep-session-header .pep-select-mode{order:2!important}
 .pep-session-header .pep-mode-switch{order:3!important}
 .pep-session-header .pep-header-settings{order:4!important;width:100%;margin-top:10px}
 .pep-session-header .pep-category-chips{display:flex!important;flex-wrap:wrap!important}
 .pep-study-app .pep-study-sidebar{z-index:100!important}
 .pep-study-app .pep-sidebar-toggle{position:sticky!important;top:0!important;right:auto!important;width:100%!important;height:44px!important;min-height:44px!important;transform:none!important;border-radius:12px!important;margin-bottom:8px!important}
 .pep-study-app .pep-sidebar-toggle span{writing-mode:horizontal-tb!important;transform:none!important}
 .pep-study-app .pep-mobile-panel-toggle{display:inline-flex!important}
}
@media(min-width:1025px){
.pep-study-app .pep-study-sidebar{max-width:none!important;visibility:visible!important}
.pep-study-app.is-sidebar-collapsed .pep-study-sidebar .pep-sidebar-combined,.pep-study-app.is-sidebar-collapsed .pep-study-sidebar .pep-results-card{display:none!important}
.pep-study-app.is-sidebar-collapsed .pep-study-shell{grid-template-columns:minmax(0,1fr) 105px!important}
.pep-study-app .pep-sidebar-toggle{z-index:5!important}
}

/* v0.6.11: real markup replacement; intentionally final specificity overrides old layout */
@media(min-width:1025px){
 .pep-session-header .pep-session-card{display:grid!important;grid-template-columns:minmax(0,1fr) 210px!important;column-gap:16px!important;row-gap:4px!important;padding:12px 18px 13px!important;align-items:start!important}
 .pep-session-header .pep-session-title{grid-column:1/-1!important;min-width:0}
 .pep-session-header .pep-session-title>.pep-kicker{font-size:11px!important;line-height:1.2!important;margin:0!important}
 .pep-session-header .pep-session-title>h2{font-size:clamp(21px,2vw,28px)!important;line-height:1.2!important;white-space:nowrap!important;overflow:hidden!important;text-overflow:ellipsis!important;margin:2px 0 3px!important;max-width:100%!important}
 .pep-session-header .pep-session-main{grid-column:1!important;grid-row:2!important;display:block!important;min-width:0!important}
 .pep-session-header .pep-meta-strip{display:flex!important;align-items:center!important;gap:9px!important;flex-wrap:nowrap!important;min-width:0!important;margin:0 0 7px!important}
 .pep-session-header .pep-total-mcqs{flex:0 0 auto!important;font-size:13px!important;padding:6px 10px!important}
 .pep-session-header .pep-distribution-label{flex:0 0 auto!important;white-space:nowrap!important;font-size:13px!important;font-weight:700!important;color:#334155!important}
 .pep-session-header .pep-category-chips{display:flex!important;flex-wrap:nowrap!important;min-width:0!important;gap:5px!important;overflow-x:auto!important;scrollbar-width:thin!important;margin:0!important;padding:1px 0!important;max-width:none!important}
 .pep-session-header .pep-chip{white-space:nowrap!important;flex:0 0 auto!important;font-size:12px!important;padding:6px 9px!important;line-height:1.35!important}
 .pep-session-header .pep-select-mode{font-size:13px!important;margin:3px 0 5px!important;line-height:1.1!important}
 .pep-session-header .pep-mode-header-row{display:flex!important;align-items:center!important}
 .pep-session-header .pep-mode-switch{margin:0!important;gap:8px!important;display:flex!important;flex-wrap:nowrap!important}
 .pep-session-header .pep-mode-link{padding:8px 12px!important;min-height:39px!important;white-space:nowrap!important;font-size:13px!important}
 .pep-session-header .pep-header-settings{grid-column:2!important;grid-row:2!important;position:sticky!important;top:8px!important;display:block!important;align-self:start!important;width:100%!important;padding:0!important}
 .pep-session-header .pep-header-settings>.pep-toolbar-settings{padding:0!important;margin:0!important;border-radius:12px!important;width:100%!important;background:white!important}
 .pep-session-header .pep-toolbar-settings>summary{display:flex!important;align-items:center!important;min-height:40px!important;padding:8px 11px!important;font-size:13px!important;line-height:1.2!important;white-space:nowrap!important}
 .pep-session-header .pep-header-settings .pep-settings-content{padding:9px 10px!important;position:relative!important;width:100%!important;border:0!important;box-shadow:none!important}
 .pep-session-header.pep-condensed{position:sticky!important;top:0!important;z-index:35!important;margin-top:0!important;background:rgba(250,253,252,.96)!important;backdrop-filter:blur(10px)}
 .pep-session-header.pep-condensed .pep-session-card{padding:7px 12px!important;grid-template-columns:minmax(0,1fr) 210px!important;row-gap:0!important}
 .pep-session-header.pep-condensed .pep-session-title,.pep-session-header.pep-condensed .pep-meta-strip,.pep-session-header.pep-condensed .pep-select-mode{display:none!important}
 .pep-session-header.pep-condensed .pep-session-main,.pep-session-header.pep-condensed .pep-header-settings{grid-row:1!important}
 .pep-session-header.pep-condensed .pep-mode-link{min-height:36px!important;padding:7px 11px!important}
}
@media(max-width:1024px){
 .pep-session-header .pep-session-card{display:flex!important;flex-direction:column!important;padding:14px!important;gap:7px!important}
 .pep-session-header .pep-session-title{display:block!important;width:100%}
 .pep-session-header .pep-session-title h2{font-size:clamp(18px,4.5vw,23px)!important;line-height:1.24!important;margin:0!important}
 .pep-session-header .pep-session-main{display:block!important;width:100%!important}
 .pep-session-header .pep-meta-strip{display:flex!important;align-items:center!important;flex-wrap:wrap!important;gap:7px!important;margin:4px 0 7px!important}
 .pep-session-header .pep-total-mcqs{padding:5px 10px!important}
 .pep-session-header .pep-distribution-label{font-size:13px!important;font-weight:700!important}
 .pep-session-header .pep-category-chips{display:flex!important;flex-wrap:wrap!important;gap:6px!important;width:100%!important;margin:0!important}
 .pep-session-header .pep-select-mode{margin:6px 0 3px!important}
 .pep-session-header .pep-header-settings{width:100%!important;margin:0!important;order:3!important}
 .pep-session-header .pep-toolbar-settings>summary{min-height:38px!important;padding:8px 12px!important;font-size:13px!important}
 .pep-session-header.pep-condensed{position:sticky!important;top:0!important;z-index:35!important;background:rgba(249,253,251,.97)!important}
 .pep-session-header.pep-condensed .pep-session-title,.pep-session-header.pep-condensed .pep-meta-strip,.pep-session-header.pep-condensed .pep-select-mode{display:none!important}
 .pep-session-header.pep-condensed .pep-session-card{padding:8px 10px!important;gap:4px!important}
}


/* v0.6.12: category row below heading and persistent show-panel affordance */
.pep-session-header .pep-meta-strip{display:flex!important;align-items:center!important;gap:10px!important;flex-wrap:nowrap!important;margin-bottom:2px!important}
.pep-session-header .pep-category-chips{display:flex!important;gap:8px!important;flex-wrap:wrap!important;overflow:visible!important;min-width:0!important;margin:2px 0 8px!important;max-width:100%!important}
.pep-session-header .pep-chip{font-size:13px!important;line-height:1.35!important;padding:6px 10px!important}
.pep-study-app .pep-sidebar-reopen{display:none!important}
@media(min-width:1025px){
 .pep-study-app.is-sidebar-collapsed .pep-sidebar-reopen{display:flex!important;grid-column:2!important;grid-row:1!important;align-self:start;justify-content:center;align-items:center;gap:5px;padding:11px 8px;border:1px solid #cfe5df;border-radius:10px;background:#e9f7f3;color:#0f6658;min-height:42px;cursor:pointer;font-size:13px;font-weight:700;white-space:nowrap;position:sticky;top:12px;z-index:5}
 .pep-study-app.is-sidebar-collapsed .pep-study-shell{grid-template-columns:minmax(0,1fr) 110px!important}
 .pep-study-app.is-sidebar-collapsed .pep-study-sidebar{display:none!important}
}
@media(max-width:1024px){
 .pep-study-app .pep-sidebar-reopen{display:flex!important;position:fixed;right:0;top:48%;z-index:95;align-items:center;gap:5px;padding:12px 9px;border:1px solid #cfe5df;border-radius:12px 0 0 12px;background:#e9f7f3;color:#0f6658;box-shadow:0 6px 20px rgba(0,0,0,.09);font-weight:700;cursor:pointer}
 .pep-study-app.is-palette-open .pep-sidebar-reopen{display:none!important}
}
/* High-contrast segmented controls in top Display Settings */
.pep-session-header .pep-toolbar-settings{overflow:visible!important;border:1px solid #d8e7e2!important;border-radius:14px!important;background:#fff!important;box-shadow:0 4px 18px rgba(15,60,50,.05)!important}
.pep-session-header .pep-toolbar-settings>summary{display:flex!important;align-items:center!important;cursor:pointer!important;font-weight:700!important;color:#123b35!important;min-height:42px!important}
.pep-session-header .pep-settings-content{padding:12px!important;display:grid!important;gap:13px!important;background:#fff!important;border-radius:0 0 14px 14px!important}
.pep-session-header .pep-settings-group{display:grid!important;gap:7px!important;font-size:13px!important;font-weight:700!important;color:#344a51!important}
.pep-session-header .pep-segment{display:grid!important;grid-template-columns:1fr 1fr!important;gap:4px!important;background:#edf3f3!important;border:1px solid #dce9e6!important;padding:4px!important;border-radius:12px!important;overflow:visible!important}
.pep-session-header .pep-segment button{background:transparent!important;color:#334155!important;border-radius:9px!important;min-height:39px!important;padding:8px 4px!important;font-size:13px!important;font-weight:700!important;cursor:pointer!important}
.pep-session-header .pep-segment button.is-active{background:#0f766e!important;color:white!important;box-shadow:0 2px 7px rgba(15,118,110,.22)!important}
.pep-session-header .pep-segment button:focus-visible,.pep-study-app .pep-sidebar-reopen:focus-visible{outline:3px solid #38bdf8!important;outline-offset:2px!important}
.pep-session-header .pep-font-range-label{display:grid!important;gap:7px!important;font-weight:700!important;font-size:13px!important}
.pep-session-header .pep-font-slider{width:100%!important;accent-color:#0f766e!important;min-height:24px!important}


/* v0.6.13: stable full-size header; desktop 60/40 question/palette split. */
.pep-session-header,.pep-session-header.pep-condensed{position:relative!important;top:auto!important;z-index:auto!important;background:transparent!important;backdrop-filter:none!important}
.pep-session-header.pep-condensed .pep-session-title,.pep-session-header.pep-condensed .pep-meta-strip,.pep-session-header.pep-condensed .pep-select-mode{display:revert!important}
.pep-session-header.pep-condensed .pep-session-title{display:block!important}
.pep-session-header.pep-condensed .pep-meta-strip{display:flex!important}
.pep-session-header.pep-condensed .pep-select-mode{display:block!important}
.pep-session-header.pep-condensed .pep-session-card{padding:17px 22px!important;gap:14px!important}
@media (min-width:1025px){
 .pep-study-app:not(.is-sidebar-collapsed) .pep-study-shell{display:grid!important;grid-template-columns:minmax(0,3fr) minmax(0,2fr)!important;gap:16px!important;align-items:start!important}
 .pep-study-app:not(.is-sidebar-collapsed) .pep-study-main{grid-column:1!important;min-width:0!important}
 .pep-study-app:not(.is-sidebar-collapsed) .pep-study-sidebar{grid-column:2!important;min-width:0!important;width:auto!important;margin:0!important}
 .pep-study-app.is-sidebar-collapsed .pep-study-shell{grid-template-columns:minmax(0,1fr) 110px!important;gap:16px!important}
}
@media (max-width:1024px){
 .pep-study-app .pep-study-shell,.pep-study-app.is-sidebar-collapsed .pep-study-shell{display:block!important;grid-template-columns:none!important}
 .pep-session-header.pep-condensed .pep-session-card{padding:16px!important}
}

/* 0.6.14: high contrast dark mode and working accessibility controls */
.pep-study-app .pep-question[hidden]{display:none!important}
.pep-study-app .pep-explanation[hidden],.pep-study-app .pep-report-form[hidden],.pep-study-app .pep-feedback[hidden]{display:none!important}
.pep-study-app .pep-question-title{font-size:calc(var(--pep-font-size,16px) * 1.22)!important;line-height:1.48!important}
.pep-study-app .pep-option,.pep-study-app .pep-option-text,.pep-study-app .pep-explanation,.pep-study-app .pep-learn-answer,.pep-study-app .pep-feedback{font-size:var(--pep-font-size,16px)!important}
.pep-study-app .pep-option-letter{font-size:calc(var(--pep-font-size,16px) * .98)!important;font-weight:800!important;color:#17243b!important;background:#fff!important;border-color:#cbd5e1!important}
body.pep-theme-dark .pep-study-app .pep-question,body.pep-theme-dark .pep-study-app .pep-question h4,body.pep-theme-dark .pep-study-app .pep-question-title{color:#fff!important}
body.pep-theme-dark .pep-study-app .pep-option,body.pep-theme-dark .pep-study-app .pep-option-text{color:#f8fafc!important;background:#1c2b3f!important;border-color:#39516a!important}
body.pep-theme-dark .pep-study-app .pep-option-letter{color:#17243b!important;background:#f8fafc!important;border-color:#dbeafe!important}
body.pep-theme-dark .pep-study-app .pep-option.is-selected{background:#21433e!important;border-color:#2dd4bf!important}
body.pep-theme-dark .pep-study-app .pep-option.pep-right{background:#174b37!important;border-color:#34d399!important;color:#fff!important}
body.pep-theme-dark .pep-study-app .pep-option.pep-wrong{background:#52262e!important;border-color:#fb7185!important;color:#fff!important}
body.pep-theme-dark .pep-study-app .pep-feedback,body.pep-theme-dark .pep-study-app .pep-explanation{color:#f1f5f9!important;background:#1c2b3f!important}
.pep-session-header .pep-font-range-label .pep-font-output{font-weight:800!important}
.pep-session-header .pep-segment button.is-active{background:#0f766e!important;color:white!important}
.pep-study-app[data-mode="learn"][data-view="list"] .pep-question-stage{display:grid!important;gap:18px!important}
@media(max-width:640px){.pep-study-app .pep-question-title{font-size:calc(var(--pep-font-size,16px) * 1.18)!important}}

/* Mock Test v0.6.15 */
.pep-exam-clock{display:flex;gap:12px;align-items:center;flex-wrap:wrap;background:#eaf6f3;color:#164e43;border:1px solid #beddd4;border-radius:12px;padding:13px 18px;margin:0 0 14px;font-size:1.05rem;font-weight:650}
.pep-exam-time{font-size:1.35rem;font-variant-numeric:tabular-nums}.pep-save-status{font-size:.82rem;font-weight:500;opacity:.8}
.pep-exam-results{margin:22px 0;background:var(--pep-card,#fff);color:var(--pep-text,#172b35);border:1px solid var(--pep-border,#dce6e5);border-radius:22px;padding:24px;scroll-margin-top:80px}
.pep-result-score{font-size:1.55rem;font-weight:800;color:var(--pep-accent,#0f766e)}
.pep-result-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:20px 0}.pep-result-stats div{padding:13px;background:var(--pep-soft,#f2f7f7);border-radius:12px;display:grid;gap:4px}.pep-result-stats strong{font-size:1.35rem}.pep-result-stats span{font-size:.86rem}.pep-result-subject{display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid var(--pep-border,#dce6e5);padding:10px 0}
@media(max-width:640px){.pep-result-stats{grid-template-columns:repeat(2,minmax(0,1fr))}}


/* v0.6.16 — accessible finish dialog and marks-based result */
.pep-study-app .pep-submit-overlay[hidden],.pep-study-app .pep-exam-results[hidden],.pep-study-app .pep-study-shell[hidden],.pep-study-app .pep-exam-clock[hidden],.pep-study-app .pep-mobile-bottom-nav[hidden]{display:none!important}
body.pep-submit-modal-open{overflow:hidden!important}
.pep-submit-overlay{position:fixed!important;inset:0!important;z-index:999999!important;background:rgba(10,23,35,.74)!important;display:flex!important;align-items:center!important;justify-content:center!important;padding:16px!important;backdrop-filter:blur(5px)}
.pep-submit-dialog{background:#fff!important;color:#182f37!important;border:1px solid #d8ece6!important;border-radius:22px!important;padding:26px!important;width:min(510px,100%)!important;max-height:90vh!important;overflow:auto!important;box-shadow:0 28px 85px rgba(0,0,0,.27)!important;text-align:center!important}
.pep-submit-dialog h2{color:#122e33!important;font-size:1.6rem!important;margin:10px 0!important}.pep-submit-dialog p{color:#556c73!important;margin:8px 0 18px!important}
.pep-submit-symbol{width:54px;height:54px;border-radius:50%;margin:auto;background:#d8f6ed;color:#087a60;font-size:32px;line-height:54px;font-weight:800}
.pep-submit-summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:18px 0}.pep-submit-summary>div{display:grid;gap:7px;padding:13px 6px;background:#f0f8f6;border-radius:12px}.pep-submit-summary strong{font-size:1.35rem;color:#0d6557}.pep-submit-summary span{font-size:.76rem;color:#455963}
.pep-submit-dialog .pep-submit-note{font-size:.87rem;margin-bottom:16px!important}.pep-submit-actions{display:flex;gap:10px;justify-content:center}.pep-submit-actions button{flex:1}
.pep-exam-results .pep-result-hero{border:1px solid #d2e8e2;background:linear-gradient(120deg,#f1faf7,#e8f5f1);border-radius:18px;padding:24px;text-align:center;color:#174437}
.pep-result-eyebrow{font-size:.72rem;font-weight:800;letter-spacing:.12em;color:#0f766e}.pep-exam-results .pep-result-hero h2{margin:10px 0 18px;color:#16463a}
.pep-result-marks,.pep-result-percentage{display:grid;gap:4px;justify-items:center}.pep-result-marks strong{font-size:clamp(2rem,5vw,3rem);line-height:1.15;color:#124f43}.pep-result-percentage strong{font-size:clamp(1.7rem,4vw,2.5rem);color:#087d62}.pep-result-marks span,.pep-result-percentage span{font-size:.82rem;color:#47665e}.pep-result-percentage{margin-top:18px}.pep-result-note{margin:16px 0 0;color:#4a685e;font-size:.88rem}
.pep-result-subject-details{margin:18px 0;border:1px solid var(--pep-border,#dce6e5);border-radius:13px;overflow:hidden}.pep-result-subject-details summary{cursor:pointer;padding:17px 18px;font-size:1.05rem;font-weight:800;list-style:revert;color:var(--pep-text,#1b333a);background:var(--pep-soft,#f2f7f7)}.pep-result-subject-body{padding:5px 18px 15px}.pep-result-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:23px}.pep-result-actions button{flex:1;min-width:150px}
body.pep-theme-dark .pep-exam-results .pep-result-hero{background:#193b34;border-color:#327565}body.pep-theme-dark .pep-exam-results .pep-result-hero h2,body.pep-theme-dark .pep-result-marks strong,body.pep-theme-dark .pep-result-percentage strong{color:#f0fffa}body.pep-theme-dark .pep-result-hero span,body.pep-theme-dark .pep-result-note{color:#c6e5dc}
@media(max-width:480px){.pep-submit-dialog{padding:19px!important}.pep-submit-summary{grid-template-columns:repeat(2,1fr)}.pep-submit-actions{flex-direction:column}}


/* v0.6.17 — prominent sticky mock timer, legible result typography, review focus */
.pep-study-app[data-mode="exam"] .pep-exam-clock:not([hidden]){position:sticky!important;top:12px!important;z-index:110!important;display:grid!important;grid-template-columns:50px minmax(0,1fr) auto!important;align-items:center!important;gap:9px 14px!important;padding:14px 18px 17px!important;margin:0 0 17px!important;border:1px solid #70c9ba!important;border-radius:18px!important;background:linear-gradient(115deg,#0c6158,#0b8376)!important;color:#fff!important;box-shadow:0 10px 28px rgba(4,86,73,.22)!important;backdrop-filter:blur(9px)}
.pep-study-app .pep-clock-icon{width:47px;height:47px;display:grid;place-items:center;border-radius:14px;background:rgba(255,255,255,.17);font-size:29px;line-height:1}
.pep-study-app .pep-clock-copy{display:flex;flex-direction:column;align-items:flex-start;gap:3px}
.pep-study-app .pep-clock-label{font-size:11px;font-weight:800;letter-spacing:.11em;color:#c9fff0!important}
.pep-study-app .pep-exam-time{font-size:clamp(26px,3.3vw,37px)!important;line-height:1!important;letter-spacing:.035em;font-weight:850!important;color:#fff!important;font-variant-numeric:tabular-nums}
.pep-study-app .pep-clock-right{display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.pep-study-app .pep-clock-live{display:flex;gap:6px;align-items:center;font-size:11px;font-weight:800;letter-spacing:.1em;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);border-radius:999px;padding:4px 9px}
.pep-study-app .pep-clock-live i{display:block;background:#a7f3d0;width:7px;height:7px;border-radius:50%;box-shadow:0 0 0 3px rgba(167,243,208,.18)}
.pep-study-app .pep-save-status{font-size:12px!important;color:#e0fff8!important;opacity:1!important}
.pep-study-app .pep-clock-progress{position:absolute;left:14px;right:14px;bottom:7px;height:4px;background:rgba(255,255,255,.22);overflow:hidden;border-radius:999px}
.pep-study-app .pep-clock-progress-bar{display:block;height:100%;width:var(--pep-clock-ratio,100%);background:#b4ffdf;border-radius:999px;transition:width .9s linear}
.pep-study-app .pep-exam-clock.pep-clock-warning{background:linear-gradient(115deg,#a66410,#cb871b)!important;border-color:#edb75f!important}
.pep-study-app .pep-exam-clock.pep-clock-urgent{background:linear-gradient(115deg,#a72534,#c83c4a)!important;border-color:#fb8793!important}
.pep-study-app .pep-exam-results{font-size:1.07rem!important;line-height:1.6!important}
.pep-study-app .pep-exam-results .pep-result-hero{padding:28px 24px!important}
.pep-study-app .pep-result-eyebrow{font-size:.88rem!important;letter-spacing:.09em!important}
.pep-study-app .pep-exam-results .pep-result-hero h2{font-size:clamp(1.55rem,3vw,2.1rem)!important;font-weight:850!important}
.pep-study-app .pep-result-marks strong{font-size:clamp(2.7rem,5.5vw,3.9rem)!important}
.pep-study-app .pep-result-percentage strong{font-size:clamp(2.35rem,4.5vw,3.3rem)!important}
.pep-study-app .pep-result-marks span,.pep-study-app .pep-result-percentage span{font-size:1rem!important;font-weight:650!important}
.pep-study-app .pep-result-note{font-size:1.02rem!important}
.pep-study-app .pep-result-stats strong{font-size:1.75rem!important}
.pep-study-app .pep-result-stats span{font-size:1rem!important;font-weight:650!important}
.pep-study-app .pep-result-subject-details summary{font-size:1.16rem!important}
.pep-study-app .pep-result-subject{font-size:1.04rem!important}
.pep-study-app .pep-result-actions button{font-size:1.04rem!important;padding:14px 18px!important}
.pep-study-app.pep-reviewing-completed .pep-question .pep-explanation[hidden]{display:none!important}
.pep-study-app.pep-reviewing-completed .pep-question .pep-finish{display:none!important}
.pep-study-app.pep-reviewing-completed .pep-question .pep-mark-review-global{display:none!important}
@media(max-width:600px){.pep-study-app[data-mode="exam"] .pep-exam-clock:not([hidden]){top:6px!important;grid-template-columns:42px minmax(0,1fr)!important;padding:11px 13px 16px!important;gap:7px 10px!important}.pep-study-app .pep-clock-icon{width:40px;height:40px;font-size:25px}.pep-study-app .pep-clock-right{grid-column:1 / -1;flex-direction:row;justify-content:space-between;align-items:center}.pep-study-app .pep-exam-results .pep-result-hero{padding:20px 12px!important}}

/* v0.6.18 result readability and review navigation */
.pep-study-app .pep-result-eyebrow{font-size:1rem!important;letter-spacing:.06em!important}
.pep-study-app .pep-exam-results .pep-result-hero h2{font-size:clamp(1.9rem,3.5vw,2.55rem)!important;line-height:1.25!important}
.pep-study-app .pep-result-marks span,.pep-study-app .pep-result-percentage span{font-size:1.18rem!important;font-weight:750!important;line-height:1.5!important}
.pep-study-app .pep-result-note{font-size:1.12rem!important;font-weight:600!important}
.pep-study-app .pep-result-stats strong{font-size:2rem!important}
.pep-study-app .pep-result-stats span{font-size:1.12rem!important;font-weight:700!important}
.pep-study-app .pep-result-subject-details summary{font-size:1.2rem!important;line-height:1.5!important}
.pep-study-app .pep-result-subject{font-size:1.1rem!important;line-height:1.5!important}
.pep-study-app .pep-result-actions{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr))!important;gap:12px!important}
.pep-study-app .pep-result-actions button{min-width:0!important;width:100%!important;min-height:62px!important;font-size:1.1rem!important;font-weight:800!important;padding:14px 15px!important;border-radius:14px!important;line-height:1.4!important}
.pep-study-app .pep-result-actions .pep-review-wrong{background:#fff2ed!important;color:#a33417!important;border:1px solid #f5c9bc!important}
.pep-study-app .pep-result-actions .pep-review-wrong:disabled{opacity:.5;cursor:not-allowed}
.pep-study-app .pep-review-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;background:var(--pep-card,#fff);border:1px solid var(--pep-border,#dce6e5);border-radius:16px;padding:16px 18px;margin-bottom:16px;flex-wrap:wrap}
.pep-study-app .pep-review-heading{display:grid;gap:4px}
.pep-study-app .pep-review-title{font-size:1.25rem;font-weight:850;color:var(--pep-text,#102e38)}
.pep-study-app .pep-review-position{font-size:1rem;color:var(--pep-muted,#64748b)}
.pep-study-app .pep-back-to-result{font-size:1.06rem!important;font-weight:800!important;padding:13px 18px!important}
.pep-study-app.pep-reviewing-completed .pep-question .pep-finish,.pep-study-app.pep-reviewing-completed .pep-question .pep-mark-review-global{display:none!important}
body.pep-theme-dark .pep-study-app .pep-result-actions .pep-review-wrong{background:#492923!important;color:#ffd5c8!important;border-color:#8d4c3f!important}
@media(max-width:850px){.pep-study-app .pep-result-actions{grid-template-columns:1fr!important}}

/* v0.6.19 review explanations and social sharing */
.pep-study-app .pep-review-explanation-toggle{display:inline-flex!important;align-items:center;gap:7px;color:#087a69!important;font-size:1rem!important;font-weight:800!important;text-decoration:underline!important;text-underline-offset:4px;cursor:pointer}
.pep-study-app.pep-reviewing-completed .pep-question .pep-actions{display:flex!important;gap:16px;align-items:center;flex-wrap:wrap}
.pep-study-app .pep-result-sharing{border:1px solid #d5e7e2;border-radius:18px;padding:22px;margin-top:23px;background:linear-gradient(120deg,#f6fbf9,#edf7f4)}
.pep-study-app .pep-result-sharing h3{margin:0 0 7px;font-size:1.4rem;font-weight:850;color:#123a34}
.pep-study-app .pep-result-sharing p{font-size:1rem!important;line-height:1.65!important;margin:0 0 17px;color:#355d56}
.pep-study-app .pep-share-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.pep-study-app .pep-share-button{border-radius:12px;padding:14px 12px;font-size:1.04rem;font-weight:800;cursor:pointer;border:1px solid #c9dcd6;background:#fff;color:#14594f;transition:filter .2s}
.pep-study-app .pep-share-button:hover{filter:brightness(.94)}
.pep-study-app .pep-share-whatsapp{background:#147b52;color:#fff;border-color:#147b52}
.pep-study-app .pep-share-facebook{background:#2358a7;color:#fff;border-color:#2358a7}
.pep-study-app .pep-share-feedback{display:block;min-height:1.3em;margin-top:9px;color:#0f7560;font-weight:700}
body.pep-theme-dark .pep-study-app .pep-result-sharing{background:#152a2a;border-color:#355251}
body.pep-theme-dark .pep-study-app .pep-result-sharing h3{color:#f2faf8}
body.pep-theme-dark .pep-study-app .pep-result-sharing p{color:#cfdfdb}
body.pep-theme-dark .pep-study-app .pep-share-copy{background:#243b40;color:#f5fffd;border-color:#54716d}
body.pep-theme-dark .pep-study-app .pep-review-explanation-toggle{color:#65e6d2!important}
@media(max-width:680px){.pep-study-app .pep-share-buttons{grid-template-columns:1fr}}


/* v0.6.20: strict mock start gate, accessible result & review actions */
.pep-study-app[data-mode="exam"] .pep-study-workspace.is-hidden,
.pep-study-app[data-mode="exam"] .pep-study-workspace[hidden]{display:none!important;visibility:hidden!important}
.pep-study-app[data-mode="exam"]:not(.pep-exam-started) .pep-study-workspace{display:none!important}
.pep-study-app[data-mode="exam"] .pep-exam-intro[hidden]{display:none!important}
.pep-study-app .pep-exam-results{font-size:18px!important;line-height:1.65!important}
.pep-study-app .pep-result-eyebrow{font-size:17px!important;letter-spacing:.045em!important;font-weight:850!important}
.pep-study-app .pep-result-marks span,.pep-study-app .pep-result-percentage span{font-size:19px!important;font-weight:750!important}
.pep-study-app .pep-result-note{font-size:18px!important;font-weight:650!important}
.pep-study-app .pep-result-stats strong{font-size:34px!important;line-height:1.2!important}
.pep-study-app .pep-result-stats span{font-size:18px!important;line-height:1.45!important;font-weight:750!important}
.pep-study-app .pep-result-subject-details summary{font-size:19px!important;font-weight:800!important}
.pep-study-app .pep-result-subject{font-size:18px!important}
.pep-study-app .pep-result-actions{grid-template-columns:repeat(2,minmax(0,1fr))!important}
.pep-study-app .pep-result-actions button{min-height:68px!important;font-size:18px!important;font-weight:800!important;line-height:1.35!important;padding:15px!important}
.pep-study-app .pep-result-actions .pep-review-skipped{background:#eaf5ff!important;border:1px solid #b8d5f3!important;color:#174e85!important}
.pep-study-app .pep-review-notice{grid-column:1/-1;font-size:17px!important;font-weight:700!important;color:#a94a29;margin:0!important}
.pep-study-app .pep-review-notice:empty{display:none}
body.pep-theme-dark .pep-study-app .pep-result-actions .pep-review-skipped{background:#213b55!important;border-color:#496784!important;color:#e3f1ff!important}
@media(max-width:720px){.pep-study-app .pep-result-actions{grid-template-columns:1fr!important}.pep-study-app .pep-result-stats span{font-size:16px!important}}

/* v0.6.21 richer results + readable review explanations */
.pep-study-app[data-mode="exam"] .pep-review-explanation-toggle,
.pep-study-app[data-mode="exam"] .pep-actions .pep-toggle-explanation{font-size:19px!important;line-height:1.5!important;font-weight:800!important;letter-spacing:0!important;min-height:44px!important;padding:8px 4px!important;color:#087b6e!important;text-decoration:underline!important;text-underline-offset:4px;cursor:pointer}
.pep-study-app[data-mode="exam"] .pep-review-explanation-toggle:focus-visible{outline:3px solid #0d9488!important;outline-offset:4px}
body.pep-theme-dark .pep-study-app[data-mode="exam"] .pep-review-explanation-toggle{color:#5eead4!important}
.pep-study-app .pep-explanation{font-size:18px!important;line-height:1.75!important}
.pep-study-app .pep-explanation-head strong{font-size:19px!important}
.pep-study-app .pep-result-hero{position:relative;overflow:hidden}
.pep-study-app .pep-result-hero:before{content:"";position:absolute;right:-90px;top:-110px;width:230px;height:230px;border:1px solid rgba(13,148,136,.15);border-radius:50%;pointer-events:none}
.pep-study-app .pep-score-visual{display:flex;justify-content:center;align-items:center;gap:22px;flex-wrap:wrap;margin:20px auto 5px;padding:12px}
.pep-study-app .pep-score-ring{--pep-score-percent:0%;width:166px;height:166px;flex:0 0 166px;border-radius:50%;padding:12px;background:conic-gradient(#0d9488 0 var(--pep-score-percent),#d7ebe5 var(--pep-score-percent) 100%);box-shadow:0 12px 28px rgba(13,148,136,.13);animation:pep-result-pop .65s ease both}
.pep-study-app .pep-score-ring-inner{background:#f5fcf9;border-radius:50%;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:1px;color:#12493d}
.pep-study-app .pep-score-ring-icon{font-size:28px!important;line-height:1.1}
.pep-study-app .pep-score-ring-inner strong{font-size:31px!important;line-height:1.2!important;font-weight:900!important}
.pep-study-app .pep-score-ring-inner small{font-size:15px!important;font-weight:700}
.pep-study-app .pep-score-achievement{text-align:left;display:flex;flex-direction:column;max-width:230px;gap:8px}
.pep-study-app .pep-score-achievement strong{font-size:23px!important;line-height:1.3!important;color:#076859}
.pep-study-app .pep-score-achievement span{font-size:18px!important;line-height:1.5!important;color:#355b54}
.pep-study-app .pep-result-stats>div{position:relative;overflow:hidden;animation:pep-result-rise .45s ease both;transition:transform .2s ease,box-shadow .2s ease}
.pep-study-app .pep-result-stats>div:nth-child(2){animation-delay:.08s}
.pep-study-app .pep-result-stats>div:nth-child(3){animation-delay:.16s}
.pep-study-app .pep-result-stats>div:nth-child(4){animation-delay:.24s}
.pep-study-app .pep-result-stats>div:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(21,57,52,.10)}
.pep-study-app .pep-result-stats .pep-stat-icon{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;background:rgba(13,148,136,.12);color:#087d6c;font-size:23px!important;font-weight:900!important;margin-bottom:7px}
.pep-study-app .pep-result-stats .pep-stat-wrong .pep-stat-icon{background:#fff0ec;color:#ad351b}
.pep-study-app .pep-result-stats .pep-stat-unanswered .pep-stat-icon{background:#e7f1ff;color:#3264a8}
.pep-study-app .pep-result-actions button,.pep-study-app .pep-share-buttons button{transition:transform .16s ease,box-shadow .16s ease!important}
.pep-study-app .pep-result-actions button:hover,.pep-study-app .pep-share-buttons button:hover{transform:translateY(-2px)!important;box-shadow:0 8px 20px rgba(9,50,44,.12)!important}
@keyframes pep-result-rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@keyframes pep-result-pop{from{opacity:0;transform:scale(.85)}to{opacity:1;transform:scale(1)}}
body.pep-theme-dark .pep-study-app .pep-score-ring{background:conic-gradient(#2dd4bf 0 var(--pep-score-percent),#344b49 var(--pep-score-percent) 100%)}
body.pep-theme-dark .pep-study-app .pep-score-ring-inner{background:#132c2b;color:#effefa}
body.pep-theme-dark .pep-study-app .pep-score-achievement strong{color:#5eead4}
body.pep-theme-dark .pep-study-app .pep-score-achievement span{color:#d0e6e1}
@media(max-width:600px){.pep-study-app .pep-score-visual{gap:12px}.pep-study-app .pep-score-achievement{text-align:center;align-items:center}.pep-study-app .pep-score-ring{width:142px;height:142px;flex-basis:142px}.pep-study-app .pep-score-ring-inner strong{font-size:27px!important}}
@media(prefers-reduced-motion:reduce){.pep-study-app .pep-score-ring,.pep-study-app .pep-result-stats>div{animation:none!important}.pep-study-app .pep-result-stats>div,.pep-study-app .pep-result-actions button,.pep-study-app .pep-share-buttons button{transition:none!important}}


/* v0.6.22: accessible, legible submission, sharing and review UI */
.pep-study-app .pep-submit-dialog{max-width:650px!important;padding:28px!important}
.pep-study-app .pep-submit-dialog h2{font-size:clamp(27px,3vw,35px)!important;line-height:1.3!important;font-weight:900!important}
.pep-study-app .pep-submit-dialog #pep-submit-desc{font-size:18px!important;line-height:1.65!important}
.pep-study-app .pep-submit-summary{gap:12px!important;margin:22px 0!important}
.pep-study-app .pep-submit-summary>div{padding:18px 9px!important;gap:9px!important;text-align:center;align-content:center;border:1px solid #dcebe7;border-radius:15px!important}
.pep-study-app .pep-submit-summary strong{font-size:clamp(28px,3vw,38px)!important;line-height:1.2!important;font-weight:900!important}
.pep-study-app .pep-submit-summary span{font-size:16px!important;line-height:1.4!important;font-weight:750!important;color:#243f42!important}
.pep-study-app .pep-submit-summary>div:before{display:block;font-size:23px;line-height:1.1}
.pep-study-app .pep-submit-summary>div:nth-child(1):before{content:'▦';color:#0d7669}
.pep-study-app .pep-submit-summary>div:nth-child(2):before{content:'✓';color:#15803d}
.pep-study-app .pep-submit-summary>div:nth-child(3):before{content:'○';color:#a16207}
.pep-study-app .pep-submit-summary>div:nth-child(4):before{content:'⚑';color:#2563eb}
.pep-study-app .pep-submit-dialog .pep-submit-note{font-size:18px!important;line-height:1.65!important;font-weight:650!important;margin:20px 0!important}
.pep-study-app .pep-submit-actions button{font-size:18px!important;min-height:54px!important;font-weight:800!important}
.pep-study-app .pep-result-sharing{padding:26px!important;border-radius:20px!important}
.pep-study-app .pep-result-sharing h3{font-size:clamp(25px,3vw,30px)!important;font-weight:900!important;line-height:1.35!important}
.pep-study-app .pep-share-heading{display:flex;align-items:center;gap:12px}
.pep-study-app .pep-result-sharing p{font-size:18px!important;line-height:1.7!important;font-weight:500!important}
.pep-study-app .pep-share-buttons button{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:17px 14px!important;min-height:62px!important;font-size:18px!important;line-height:1.35!important;font-weight:850!important}
.pep-study-app .pep-share-feedback{font-size:16px!important;font-weight:650!important}
.pep-study-app .pep-ui-icon{flex-shrink:0;width:24px;height:24px;vertical-align:middle}
.pep-study-app .pep-share-heading .pep-ui-icon{width:28px;height:28px;color:#0b806f}
.pep-study-app .pep-review-toolbar{padding:22px 24px!important;gap:16px!important;border-radius:18px!important;box-shadow:0 5px 18px rgba(14,65,59,.06)}
.pep-study-app .pep-review-heading{display:grid;grid-template-columns:auto 1fr;column-gap:12px;row-gap:8px;align-items:center}
.pep-study-app .pep-review-heading>.pep-ui-icon{grid-column:1;grid-row:1/3;width:31px;height:31px;color:#0c8775}
.pep-study-app .pep-review-title{grid-column:2;font-size:clamp(22px,2.6vw,27px)!important;line-height:1.35!important;font-weight:900!important}
.pep-study-app .pep-review-position{grid-column:2;font-size:17px!important;line-height:1.5!important;font-weight:600!important}
.pep-study-app .pep-back-to-result{display:inline-flex!important;gap:9px!important;align-items:center;justify-content:center;min-height:55px!important;font-size:18px!important;font-weight:850!important;padding:13px 20px!important}
.pep-study-app .pep-review-explanation-toggle{font-size:20px!important;line-height:1.5!important}
body.pep-theme-dark .pep-study-app .pep-submit-summary span{color:#e5efef!important}
body.pep-theme-dark .pep-study-app .pep-submit-summary>div{border-color:#415552;background:#203636}
body.pep-theme-dark .pep-study-app .pep-share-heading .pep-ui-icon,body.pep-theme-dark .pep-study-app .pep-review-heading>.pep-ui-icon{color:#5eead4}
@media(max-width:620px){.pep-study-app .pep-submit-dialog{padding:20px!important}.pep-study-app .pep-submit-summary{grid-template-columns:repeat(2,minmax(0,1fr))!important}.pep-study-app .pep-review-toolbar{padding:17px!important}.pep-study-app .pep-back-to-result{width:100%!important}.pep-study-app .pep-share-buttons{grid-template-columns:1fr!important}}


/* v0.6.23: Review toolbar comes after question area; countdown urgency */
.pep-study-app .pep-review-toolbar{margin-top:20px!important;margin-bottom:18px!important;clear:both!important}
.pep-study-app[data-mode="exam"] .pep-exam-clock:not([hidden]){top:30px!important;margin-top:20px!important;margin-bottom:20px!important}
.pep-study-app[data-mode="exam"] .pep-exam-clock.pep-clock-warning{background:linear-gradient(115deg,#aa2735,#d13b43)!important;border-color:#ff9da3!important;box-shadow:0 12px 30px rgba(185,34,52,.25)!important}
.pep-study-app[data-mode="exam"] .pep-exam-clock.pep-clock-urgent{background:linear-gradient(115deg,#8e1427,#c71f39)!important;border-color:#ff808d!important;box-shadow:0 13px 34px rgba(185,25,51,.42)!important}
.pep-study-app .pep-clock-warning .pep-clock-progress-bar,.pep-study-app .pep-clock-urgent .pep-clock-progress-bar{background:#ffe5e5!important}
.pep-study-app .pep-clock-warning .pep-clock-live i,.pep-study-app .pep-clock-urgent .pep-clock-live i{background:#fff1f2!important;box-shadow:0 0 0 3px rgba(255,255,255,.25)!important}
@keyframes pepFinalTwoMinutes{0%,100%{box-shadow:0 13px 34px rgba(185,25,51,.42)}50%{box-shadow:0 13px 34px rgba(185,25,51,.66),0 0 0 4px rgba(220,38,59,.15)}}
.pep-study-app[data-mode="exam"] .pep-exam-clock.pep-clock-final{animation:pepFinalTwoMinutes 1.6s ease-in-out infinite}
@media(max-width:600px){.pep-study-app[data-mode="exam"] .pep-exam-clock:not([hidden]){top:18px!important;margin-top:16px!important}}
@media(prefers-reduced-motion:reduce){.pep-study-app[data-mode="exam"] .pep-exam-clock.pep-clock-final{animation:none!important}}

/* v0.6.24 pause/exit confirmation */
.pep-exam-clock{position:relative}
.pep-pause-exam{border:1px solid rgba(255,255,255,.45);color:#fff;background:rgba(255,255,255,.13);border-radius:12px;padding:9px 13px;font-weight:800;font-size:15px;cursor:pointer;margin:8px 8px 5px 0;z-index:2}
.pep-pause-exam:hover{background:rgba(255,255,255,.24)}
.pep-exit-overlay[hidden]{display:none!important}
.pep-exit-overlay{position:fixed;inset:0;background:rgba(9,22,34,.66);display:grid;place-items:center;z-index:999999;padding:18px;backdrop-filter:blur(5px)}
.pep-exit-dialog{width:min(530px,100%);background:#fff;color:#152238;border-radius:24px;padding:26px;box-shadow:0 25px 70px rgba(0,0,0,.25);text-align:center}
.pep-exit-symbol{font-size:42px;color:#0c7667}.pep-exit-dialog h2{font-size:clamp(23px,3vw,30px)!important;margin:4px 0 10px!important;color:#142237!important}.pep-exit-dialog p{font-size:17px!important;line-height:1.5!important;color:#475569!important}
.pep-exit-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}.pep-exit-actions button{font-size:16px!important;padding:13px 10px!important}.pep-exit-actions .pep-exit-quit{background:#fef2f2!important;border:1px solid #fecaca!important;color:#b91c1c!important;grid-column:1/-1}.pep-exit-dialog .pep-exit-footnote{font-size:14px!important;margin:14px 0 0!important}
@media(max-width:560px){.pep-exit-dialog{padding:20px 16px}.pep-exit-actions{grid-template-columns:1fr}.pep-exit-actions .pep-exit-quit{grid-column:auto}.pep-pause-exam{font-size:13px}}

/* v0.6.25: timer stays compact; exit is requested only when navigating away */
.pep-study-app[data-mode="exam"] .pep-exam-clock:not([hidden]){display:grid!important;grid-template-columns:50px minmax(0,1fr) auto!important;grid-template-rows:auto auto!important;min-height:0!important;height:auto!important;align-content:center!important;overflow:hidden!important;box-sizing:border-box!important}
.pep-study-app[data-mode="exam"] .pep-exam-clock .pep-pause-exam{display:none!important}
.pep-study-app[data-mode="exam"] .pep-exam-clock .pep-clock-progress{grid-column:1/-1!important}
.pep-study-app .pep-exit-dialog .pep-exit-pause{background:#0d766b!important;color:#fff!important}
@media(max-width:600px){.pep-study-app[data-mode="exam"] .pep-exam-clock:not([hidden]){grid-template-columns:42px minmax(0,1fr)!important}}


/* v0.6.27 bookmarks: only Study and Practice */
.pep-bookmarks-toolbar{display:flex;justify-content:flex-end;margin:4px 0 14px}
.pep-open-bookmarks,.pep-bookmark-toggle{display:inline-flex;align-items:center;gap:8px;padding:10px 15px;border:1px solid #b7d9cd;border-radius:11px;background:#edfaf5;color:#116554;font-size:16px;font-weight:750;cursor:pointer}
.pep-open-bookmarks:hover,.pep-bookmark-toggle:hover{background:#ddf4eb}
.pep-bookmark-count{background:#0d766c;color:#fff;border-radius:30px;padding:1px 8px;min-width:22px;text-align:center}
.pep-bookmark-actions{display:flex;justify-content:flex-end;margin:5px 0 10px}
.pep-bookmark-toggle.is-saved{background:#0d766c;color:white;border-color:#0d766c}
.pep-bookmark-toggle.is-saved svg{fill:currentColor}
.pep-bookmark-drawer,.pep-bookmark-directory{background:var(--pep-card,#fff);border:1px solid var(--pep-border,#dbe7e2);border-radius:16px;padding:18px;margin:0 0 18px;color:var(--pep-text,#182f29)}
.pep-bookmark-drawer[hidden]{display:none!important}
.pep-bookmark-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px}
.pep-bookmark-drawer-head h3{margin:0;font-size:23px}
.pep-close-bookmarks{border:0;background:transparent;color:inherit;font-size:30px;cursor:pointer}
.pep-bookmark-list{display:grid;gap:10px;margin-top:16px}
.pep-bookmark-item{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--pep-bg,#f4faf8);border:1px solid var(--pep-border,#dbe7e2);padding:14px;border-radius:12px}
.pep-bookmark-item-copy{display:grid;gap:5px;min-width:0;overflow-wrap:anywhere;font-size:17px}
.pep-bookmark-item-copy span{font-size:14px;opacity:.8}
.pep-bookmark-item-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}
.pep-bookmark-open{padding:9px 14px!important;font-size:15px!important}
.pep-bookmark-remove{padding:9px 12px;border-radius:10px;border:1px solid #f1b5b5;background:transparent;color:#c24141;font-weight:700;cursor:pointer}
.pep-theme-dark .pep-open-bookmarks,.pep-theme-dark .pep-bookmark-toggle:not(.is-saved){background:#173e38;color:#dcfff4;border-color:#31594f}
.pep-theme-dark .pep-bookmark-item{background:#182837}
@media(max-width:640px){.pep-bookmark-item{align-items:flex-start;flex-direction:column}.pep-bookmark-item-actions{width:100%;flex-wrap:wrap}.pep-bookmark-item-actions>*{flex:1;text-align:center}}

/* v0.6.28: bookmark sits on the explanation/report action row */
.pep-study-app .pep-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.pep-study-app .pep-actions .pep-bookmark-toggle{margin-left:auto;font-size:15px;padding:8px 12px;white-space:nowrap}
.pep-study-app .pep-actions .pep-report-inline{margin-left:0}
@media(max-width:640px){.pep-study-app .pep-actions .pep-bookmark-toggle{margin-left:0}.pep-study-app .pep-actions .pep-report-inline{margin-left:auto}}


/* v0.6.29: wrong-answer practice drawer and shortcode */
.pep-wrong-toolbar{display:flex;justify-content:flex-end;margin:4px 0 12px}
.pep-open-wrong{display:inline-flex;align-items:center;gap:10px;border:1px solid #d9ada5;background:#fff3f0;color:#9b342c;border-radius:12px;padding:11px 16px;font-size:16px;font-weight:750;cursor:pointer}
.pep-open-wrong:hover{background:#ffe7e1}
.pep-wrong-count{border-radius:20px;background:#b64136;color:#fff;padding:2px 9px;min-width:24px;text-align:center}
.pep-wrong-drawer,.pep-wrong-directory{background:var(--pep-card,#fff);color:var(--pep-text,#182f29);border:1px solid var(--pep-border,#dbe7e2);border-radius:16px;padding:18px;margin:0 0 18px}
.pep-wrong-drawer[hidden]{display:none!important}
.pep-wrong-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.pep-wrong-drawer-head h3{font-size:23px;margin:0}
.pep-close-wrong{background:none;color:inherit;border:0;font-size:30px;cursor:pointer}
.pep-wrong-list{display:grid;gap:11px;margin-top:16px}
.pep-wrong-item{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--pep-bg,#f4faf8);border:1px solid var(--pep-border,#dbe7e2);border-radius:12px;padding:15px}
.pep-wrong-item-copy{display:grid;gap:6px;min-width:0;overflow-wrap:anywhere;font-size:17px}
.pep-wrong-item-copy span{font-size:15px;opacity:.78}
.pep-wrong-item-actions{display:flex;gap:10px;align-items:center;flex-shrink:0}
.pep-wrong-open{font-size:15px!important;padding:9px 14px!important}
.pep-wrong-remove{background:transparent;border:1px solid #e5a8a8;color:#b83a3a;font-weight:700;padding:10px 14px;border-radius:10px;cursor:pointer}
.pep-theme-dark .pep-open-wrong{background:#4b282e;color:#ffe0db;border-color:#7b4247}
.pep-theme-dark .pep-wrong-item{background:#182837}
@media(max-width:640px){.pep-wrong-item{align-items:flex-start;flex-direction:column}.pep-wrong-item-actions{flex-wrap:wrap;width:100%}.pep-wrong-item-actions>*{flex:1;text-align:center}}

/* v0.6.30: consistent Study/Practice learning toolbar, result-only wrong practice */
.pep-study-app .pep-learning-toolbar{display:flex;align-items:center;justify-content:flex-end;gap:12px;flex-wrap:wrap;margin:6px 0 14px}
.pep-study-app .pep-learning-toolbar .pep-wrong-toolbar,.pep-study-app .pep-learning-toolbar .pep-bookmarks-toolbar{display:flex;align-items:center;margin:0!important;justify-content:flex-end}
.pep-study-app .pep-learning-toolbar .pep-open-wrong,.pep-study-app .pep-learning-toolbar .pep-open-bookmarks{min-height:46px;white-space:normal;line-height:1.2}
.pep-result-practice-wrong{font-size:18px!important;min-height:48px}
.pep-result-wrong-drawer{margin:16px 0 22px!important;text-align:left}
.pep-result-wrong-drawer h3{font-size:23px!important;margin:0 0 8px}
.pep-result-wrong-drawer p{font-size:17px!important;line-height:1.5}
@media(max-width:520px){.pep-study-app .pep-learning-toolbar{justify-content:stretch;gap:8px}.pep-study-app .pep-learning-toolbar>div{flex:1 1 150px;min-width:0}.pep-study-app .pep-learning-toolbar button{width:100%;justify-content:center}}