/* Aptis Course 46532 — unified design system */
:root {
 --bg-top: #f3f0eb;
 --bg-bottom: #ebe6df;
 --paper: #fffcf8;
 --ink: #2d2a26;
 --ink-soft: #6b6560;
 --ink-muted: #9a948c;
 --accent: #e94560;
 --accent-soft: rgba(233, 69, 96, 0.12);
 --ok: #15803d;
 --ok-soft: rgba(21, 128, 61, 0.12);
 --bad: #b91c1c;
 --bad-soft: rgba(185, 28, 28, 0.1);
 --line: rgba(45, 42, 38, 0.08);
 --shadow: 0 8px 28px rgba(45, 42, 38, 0.07);
 --radius-lg: 20px;
 --radius-md: 12px;
 --radius-sm: 10px;
}

* { box-sizing: border-box; }

body.course-app {
 font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
 margin: 0;
 background: linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
 background-attachment: fixed;
 color: var(--ink);
 line-height: 1.6;
 -webkit-font-smoothing: antialiased;
}

.course-wrap {
 max-width: 860px;
 margin: 0 auto;
 padding: 24px 16px 48px;
}

.course-hero {
 background: var(--paper);
 border-radius: var(--radius-lg);
 padding: 24px;
 box-shadow: var(--shadow);
 margin-bottom: 20px;
}

.course-eyebrow {
 color: var(--accent);
 font-size: 12px;
 font-weight: 700;
 letter-spacing: 1px;
 text-transform: uppercase;
}

.course-hero h1 { margin: 8px 0 6px; font-size: 1.5rem; }
.course-meta { color: var(--ink-muted); font-size: 0.95rem; }

.course-chapter {
 background: var(--paper);
 border-radius: var(--radius-md);
 box-shadow: var(--shadow);
 margin-bottom: 14px;
 overflow: hidden;
}

.course-chapter-head {
 width: 100%;
 display: grid;
 grid-template-columns: 1fr auto auto;
 gap: 10px;
 align-items: center;
 padding: 16px 18px;
 border: 0;
 background: transparent;
 text-align: left;
 cursor: pointer;
 font: inherit;
 color: inherit;
}

.course-chapter-title { font-weight: 600; }
.course-chapter-count { color: var(--ink-muted); font-size: 0.9rem; }
.course-chapter-body { border-top: 1px solid var(--line); }
.course-chapter.collapsed .course-chapter-body { display: none; }

.course-lesson {
 display: block;
 padding: 14px 18px;
 text-decoration: none;
 color: inherit;
 border-top: 1px solid var(--line);
}
.course-lesson-inner {
 display: flex;
 align-items: center;
 gap: 12px;
 width: 100%;
 min-width: 0;
}
.course-lesson:hover { background: var(--accent-soft); }

.course-lesson-badge {
 font-size: 11px;
 font-weight: 700;
 text-transform: uppercase;
 color: var(--accent);
 background: var(--accent-soft);
 padding: 4px 8px;
 border-radius: 999px;
 white-space: nowrap;
 flex-shrink: 0;
}

.lesson-title {
 flex: 1 1 auto;
 min-width: 0;
 font-size: 0.98rem;
}

.course-lesson-inner .aptis-progress-ring {
 flex-shrink: 0;
}

.lesson-arrow {
 flex-shrink: 0;
 line-height: 1;
 color: var(--ink-muted);
 font-size: 1.2rem;
}

/* Hub cards */
.hub-wrap { max-width: 760px; margin: 0 auto; padding: 20px 16px 32px; }
.hub-badge {
 color: var(--accent);
 font-size: 12px;
 font-weight: 700;
 letter-spacing: 1px;
 text-transform: uppercase;
 margin-bottom: 8px;
}
.hub-title { margin: 0 0 8px; font-size: 1.35rem; font-weight: 600; }
.hub-subtitle { color: var(--ink-muted); font-size: 0.95rem; margin-bottom: 20px; }

.hub-card, .section-card {
 display: flex;
 align-items: center;
 flex-wrap: nowrap;
 gap: 12px;
 padding: 16px;
 margin-bottom: 12px;
 background: var(--paper);
 border: 1px solid var(--line);
 border-radius: var(--radius-md);
 color: inherit;
 text-decoration: none;
 box-shadow: 0 2px 8px rgba(45, 42, 38, 0.04);
 transition: border-color 0.2s, transform 0.15s;
}
.hub-card:hover, .section-card:hover {
 border-color: rgba(233, 69, 96, 0.25);
 transform: translateY(-1px);
}

.hub-card-icon, .section-icon {
 width: 44px;
 height: 44px;
 border-radius: var(--radius-sm);
 background: var(--accent-soft);
 display: grid;
 place-items: center;
 font-size: 20px;
 flex-shrink: 0;
}
.hub-card-body, .section-body { flex: 1; min-width: 0; }
.hub-card-title, .section-title { font-weight: 600; font-size: 1rem; }
.hub-card-meta, .section-meta { color: var(--ink-muted); font-size: 0.9rem; margin-top: 4px; }
.hub-card-action, .section-action {
 color: var(--accent);
 font-weight: 600;
 font-size: 0.9rem;
 white-space: nowrap;
 flex-shrink: 0;
}

.section-card .aptis-progress-ring {
 flex-shrink: 0;
}

.section-card.answer-card,
.hub-card.answer-card {
 border-color: rgba(21, 128, 61, 0.2);
 background: var(--ok-soft);
}
.section-card.answer-card .section-icon,
.hub-card.answer-card .hub-card-icon { background: rgba(21, 128, 61, 0.15); }
.section-card.answer-card .section-action,
.hub-card.answer-card .hub-card-action { color: var(--ok); }

.hub-back,
.hub-home-btn {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 padding: 8px 14px;
 border-radius: 999px;
 background: #fff;
 border: 1.5px solid rgba(233, 69, 96, 0.25);
 color: var(--accent);
 font-size: 13px;
 font-weight: 600;
 text-decoration: none;
 box-shadow: 0 2px 8px rgba(45, 42, 38, 0.06);
 transition: background 0.2s, border-color 0.2s;
}
.hub-back:hover,
.hub-home-btn:hover {
 background: var(--accent-soft);
 color: var(--accent);
}

.hub-top-bar {
 position: sticky;
 top: var(--nav-h, 56px);
 z-index: 100;
 margin: -20px -16px 20px;
 padding: 12px 16px;
}

.hub-group { margin-bottom: 28px; }
.hub-group-title {
 margin: 0 0 12px;
 padding: 0 2px;
 font-size: 0.8rem;
 font-weight: 700;
 letter-spacing: 0.08em;
 text-transform: uppercase;
 color: var(--accent);
}
.hub-group .section-card { margin-bottom: 8px; }
.hub-group .section-card:last-child { margin-bottom: 0; }

/* Exam header extras */
.exam-toolbar {
 display: flex;
 flex-wrap: wrap;
 gap: 8px;
 align-items: center;
 margin-bottom: 8px;
}
.exam-back {
 color: var(--ink-soft);
 text-decoration: none;
 font-size: 13px;
 font-weight: 600;
}
.exam-back:hover { color: var(--accent); }
.exam-score {
 margin-left: auto;
 font-size: 13px;
 font-weight: 700;
 color: var(--ink);
 padding: 6px 12px;
 background: #fff;
 border-radius: 999px;
 border: 1px solid var(--line);
}
.exam-answers-link {
 margin-left: auto;
 font-size: 13px;
 font-weight: 600;
 color: var(--ok);
 text-decoration: none;
}
.exam-answers-link:hover { text-decoration: underline; }
.exam-toolbar .exam-score { margin-left: 0; }
.btn-check-all, .btn-check-one {
 border: 0;
 border-radius: 999px;
 padding: 8px 16px;
 font-size: 13px;
 font-weight: 600;
 cursor: pointer;
 transition: background 0.2s, transform 0.1s;
}
.btn-check-all {
 background: var(--accent);
 color: #fff;
 box-shadow: 0 4px 14px rgba(233, 69, 96, 0.25);
}
.btn-check-all:hover { filter: brightness(1.05); }
.btn-check-one {
 background: #fff;
 color: var(--accent);
 border: 1.5px solid rgba(233, 69, 96, 0.35);
 margin-top: 0;
}
.btn-check-one:hover { background: var(--accent-soft); }

.q-check-footer {
 display: flex;
 justify-content: flex-end;
 align-items: center;
 gap: 12px;
 margin-top: 16px;
 padding-top: 14px;
 border-top: 1px solid rgba(0, 0, 0, 0.06);
}
.q-check-bar {
 display: flex;
 flex-wrap: wrap;
 align-items: center;
 gap: 10px;
 padding: 10px 16px 12px;
 border-top: 1px solid rgba(0, 0, 0, 0.06);
 background: var(--surface);
}
.q-toolbar {
 display: flex;
 flex-wrap: wrap;
 align-items: center;
 gap: 10px;
 margin-bottom: 12px;
 padding-top: 4px;
}
.q-result {
 font-size: 13px;
 font-weight: 600;
}
.q-result.ok { color: var(--ok); }
.q-result.bad { color: var(--bad); }
.q-result.partial { color: #b45309; }

/* Answer feedback */
select.select_word.quiz-correct,
input.quiz-correct {
 border-color: var(--ok) !important;
 background: var(--ok-soft) !important;
}
select.select_word.quiz-wrong,
input.quiz-wrong {
 border-color: var(--bad) !important;
 background: var(--bad-soft) !important;
}

label.area-answer-quiz.quiz-correct {
 border-color: var(--ok) !important;
 background: var(--ok-soft) !important;
}
label.area-answer-quiz.quiz-wrong {
 border-color: var(--bad) !important;
 background: var(--bad-soft) !important;
}
label.area-answer-quiz.quiz-correct-answer {
 border-color: var(--ok) !important;
 box-shadow: 0 0 0 2px var(--ok-soft);
}

.span-drop-word {
 display: inline-block;
 min-height: 2.4em;
 min-width: 120px;
 padding: 8px 12px;
 margin: 4px 0;
 border: 2px dashed #d8d0c6;
 border-radius: var(--radius-sm);
 background: #fff;
 vertical-align: middle;
 cursor: pointer;
 transition: border-color 0.2s, background 0.2s;
}
.span-drop-word.filled {
 border-style: solid;
 border-color: #e6e0d8;
 background: #faf7f3;
}
.span-drop-word.drop-active {
 border-color: var(--accent);
 background: var(--accent-soft);
}
.span-drop-word.quiz-correct { border-color: var(--ok); background: var(--ok-soft); }
.span-drop-word.quiz-wrong { border-color: var(--bad); background: var(--bad-soft); }

.list-answer-word-child.draggable {
 padding: 10px 12px;
 margin: 6px 0;
 border: 1.5px solid var(--line);
 border-radius: var(--radius-sm);
 background: #fff;
 cursor: grab;
 font-size: 14px;
 line-height: 1.5;
 transition: border-color 0.2s, opacity 0.2s;
}
.list-answer-word-child.draggable:hover { border-color: rgba(233, 69, 96, 0.3); }
.list-answer-word-child.draggable.selected {
 border-color: var(--accent);
 background: var(--accent-soft);
}
.list-answer-word-child.draggable.used { opacity: 0.45; }
.fa-grip { display: none !important; }

.quiz-hint {
 margin-top: 14px;
 padding: 12px 14px;
 border-radius: var(--radius-sm);
 background: var(--ok-soft);
 border-left: 4px solid var(--ok);
 font-size: 14px;
 line-height: 1.6;
}
.quiz-hint summary {
 cursor: pointer;
 font-weight: 600;
 color: var(--ok);
 list-style: none;
}
.quiz-hint summary::-webkit-details-marker { display: none; }
.quiz-hint .hint-body { margin-top: 10px; }
.quiz-hint img { max-width: 100%; height: auto; }

video.quiz-video,
.quiz-hint video,
.quiz-video {
 width: 100%;
 max-width: 100%;
 margin: 10px 0 14px;
 border-radius: var(--radius-sm);
 background: #000;
}

.q-nav.correct { background: var(--ok-soft); color: var(--ok); }
.q-nav.wrong { background: var(--bad-soft); color: var(--bad); }
.q-nav.partial { background: #fef3c7; color: #b45309; }