/* Compact course shell */
.course-shell {
    --bg: #111111;
    --text: #e5e5e5;
    --text-secondary: #a0a0a0;
    --link: #e5e5e5;
    --border: #222;
    --panel: #161616;
}

.course-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.85rem;
    padding: 0.65rem 0;
    margin: 0 0 1.25rem;
    background: rgba(17, 17, 17, 0.94);
    border-bottom: 1px solid var(--border, #222);
    font-size: 0.85rem;
}

.course-nav a {
    color: var(--text-secondary, #a0a0a0);
    text-decoration: none;
}

.course-nav a:hover,
.course-nav a.active {
    color: var(--text, #e5e5e5);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.progress-box,
.quiz-box,
.coach-card,
.panel {
    margin-top: 0.85rem;
    padding: 0.9rem 1rem;
    border: 1px solid var(--border, #222);
    background: var(--panel, #161616);
}

.progress-summary {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.progress-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0.75rem;
}

.progress-list li {
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
    color: var(--text-secondary, #a0a0a0);
}

.progress-list strong {
    color: var(--text, #e5e5e5);
}

.day-list,
.room-list,
.pattern-toc {
    list-style: none;
    padding-left: 0;
}

.day-list li,
.room-list li,
.pattern-toc li {
    margin-bottom: 0.55rem;
    padding-bottom: 0.55rem;
    border-bottom: 1px solid #1a1a1a;
    font-size: 0.95rem;
    color: var(--text-secondary, #a0a0a0);
}

.day-list li:last-child,
.room-list li:last-child,
.pattern-toc li:last-child {
    border-bottom: none;
}

.day-list a,
.room-list a,
.pattern-toc a {
    font-weight: 600;
    color: var(--text, #e5e5e5);
    text-decoration: none;
}

.day-list a:hover,
.room-list a:hover,
.pattern-toc a:hover {
    text-decoration: underline;
    opacity: 1;
}

/* Coach cards */
.coach-card + .coach-card {
    margin-top: 1rem;
}

.coach-label {
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-secondary, #a0a0a0);
    margin-bottom: 0.35rem;
}

.coach-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text, #e5e5e5);
    margin: 0 0 0.55rem;
}

.coach-prompt {
    font-size: 0.98rem;
    color: var(--text, #e5e5e5);
    margin-bottom: 0.75rem;
}

.coach-textarea {
    width: 100%;
    min-height: 96px;
    margin-bottom: 0.6rem;
    padding: 0.65rem 0.75rem;
    border: 1px solid #333;
    background: #111;
    color: var(--text, #e5e5e5);
    font: inherit;
    font-size: 0.92rem;
    line-height: 1.5;
    resize: vertical;
}

.coach-check {
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
    margin-bottom: 0.65rem;
    font-size: 0.9rem;
    color: var(--text-secondary, #a0a0a0);
}

.coach-check input {
    margin-top: 0.2rem;
}

.coach-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.quiz-btn,
.coach-btn {
    display: inline-block;
    padding: 0.45rem 0.75rem;
    border: 1px solid #444;
    background: transparent;
    color: var(--text, #e5e5e5);
    font: inherit;
    font-size: 0.85rem;
    cursor: pointer;
}

.quiz-btn:hover:not(:disabled),
.coach-btn:hover:not(:disabled) {
    border-color: #777;
}

.quiz-btn:disabled,
.coach-btn:disabled {
    opacity: 0.5;
    cursor: default;
}

.quiz-btn.secondary,
.coach-btn.secondary {
    color: var(--text-secondary, #a0a0a0);
    border-color: #333;
}

.coach-reveal {
    margin-top: 0.5rem;
    padding-top: 0.75rem;
    border-top: 1px solid #222;
}

.coach-reveal[hidden] {
    display: none;
}

.coach-reveal h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin: 0 0 0.45rem;
    color: var(--text, #e5e5e5);
}

.coach-reveal p,
.coach-reveal li {
    font-size: 0.92rem;
}

.coach-reveal ul,
.coach-reveal ol {
    margin-bottom: 0.65rem;
    padding-left: 1.15rem;
}

.coach-rubric {
    margin-top: 0.75rem;
}

.coach-rubric label {
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
    color: var(--text-secondary, #a0a0a0);
}

.coach-score {
    margin-top: 0.55rem;
    font-size: 0.9rem;
    color: var(--text-secondary, #a0a0a0);
}

.coach-score strong {
    color: var(--text, #e5e5e5);
}

.coach-status {
    margin-top: 0.35rem;
    font-size: 0.8rem;
    color: var(--text-secondary, #a0a0a0);
}

details.code-shape {
    margin-top: 0.65rem;
    border: 1px solid #2a2a2a;
    background: #121212;
    padding: 0.5rem 0.75rem;
}

details.code-shape summary {
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-secondary, #a0a0a0);
}

details.code-shape pre {
    margin: 0.65rem 0 0.25rem;
    font-size: 0.8rem;
}

.pattern-section {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid #222;
}

.pattern-section > h2 {
    margin-top: 0;
}

.talk-track,
.edge-list,
.signal-list {
    margin-bottom: 0.75rem;
}

.example-walk {
    margin: 0.75rem 0;
    padding: 0.75rem 0.85rem;
    border-left: 2px solid #444;
    background: #151515;
    font-size: 0.9rem;
    color: var(--text-secondary, #a0a0a0);
}

.example-walk strong {
    color: var(--text, #e5e5e5);
}

.timer-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.75rem;
}

.timer-display {
    font-variant-numeric: tabular-nums;
    font-size: 1rem;
    color: var(--text, #e5e5e5);
}

.mock-block {
    margin-top: 1rem;
}

.debrief-box {
    margin-top: 0.75rem;
    padding: 0.75rem 0.85rem;
    border: 1px dashed #333;
    background: #141414;
    font-size: 0.88rem;
    color: var(--text-secondary, #a0a0a0);
}

.debrief-box code,
.debrief-box pre {
    font-size: 0.82rem;
}

/* Keep legacy quiz styles usable */
.quiz-meta {
    font-size: 0.8rem;
    color: var(--text-secondary, #a0a0a0);
    margin-bottom: 0.55rem;
}

.quiz-prompt {
    font-size: 0.98rem;
    margin-bottom: 0.75rem;
    color: var(--text, #e5e5e5);
}

.quiz-options {
    display: grid;
    gap: 0.45rem;
    margin-bottom: 0.75rem;
}

.quiz-option {
    display: flex;
    gap: 0.65rem;
    align-items: flex-start;
    width: 100%;
    text-align: left;
    padding: 0.6rem 0.7rem;
    border: 1px solid #333;
    background: #111;
    color: var(--text, #e5e5e5);
    font: inherit;
    font-size: 0.9rem;
    line-height: 1.4;
    cursor: pointer;
}

.quiz-option:hover:not(:disabled) {
    border-color: #555;
}

.quiz-option:disabled {
    cursor: default;
}

.quiz-option.correct {
    border-color: #5a7a5a;
    background: #162016;
}

.quiz-option.wrong {
    border-color: #7a5a5a;
    background: #201616;
}

.quiz-letter {
    color: var(--text-secondary, #a0a0a0);
    min-width: 1.1rem;
    font-weight: 600;
}

.quiz-feedback {
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-secondary, #a0a0a0);
}

.quiz-feedback strong,
.quiz-result h3 {
    color: var(--text, #e5e5e5);
}

.quiz-result h3 {
    font-size: 1.05rem;
    margin: 0 0 0.5rem;
}

@media (max-width: 600px) {
    .course-nav {
        gap: 0.3rem 0.65rem;
        font-size: 0.8rem;
    }

    .coach-textarea {
        min-height: 84px;
    }
}