/* Shared tutorial chapter template */

.tutorial-template-page .main-content {
    padding-top: 0;
}

.tutorial-template-shell {
    --tutorial-template-bg: #f8fafc;
    --tutorial-template-surface: #ffffff;
    --tutorial-template-border: #e2e8f0;
    --tutorial-template-text: #1e293b;
    --tutorial-template-muted: #64748b;
    --tutorial-template-primary: #2563eb;
    --tutorial-template-primary-dark: #1d4ed8;
    --tutorial-template-accent: #f59e0b;
    --tutorial-template-radius: 18px;
    background: var(--tutorial-template-bg);
    color: var(--tutorial-template-text);
    min-height: 100vh;
}

.tutorial-template-container {
    width: min(1180px, calc(100% - 2rem));
    margin: 0 auto;
}

.tutorial-template-hero {
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.24), transparent 36rem),
        linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
    color: #ffffff;
    padding: 7rem 0 3.5rem;
}

.tutorial-template-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.95rem;
}

.tutorial-template-breadcrumb a {
    color: inherit;
    text-decoration: none;
}

.tutorial-template-breadcrumb a:hover {
    color: #ffffff;
}

.tutorial-template-hero h1 {
    max-width: 920px;
    margin: 1rem 0;
    color: #ffffff;
    font-size: clamp(2.25rem, 5vw, 4.5rem);
    line-height: 1.05;
}

.tutorial-template-hero__subtitle {
    max-width: 780px;
    margin: 0;
    color: rgba(255, 255, 255, 0.84);
    font-size: clamp(1.05rem, 2vw, 1.35rem);
    line-height: 1.7;
}

.tutorial-template-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tutorial-template-meta__item {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.45rem 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(12px);
}

.tutorial-template-meta__label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.tutorial-template-meta__value {
    color: #ffffff;
    font-weight: 700;
}

.tutorial-template-progress {
    margin-top: 2rem;
    max-width: 540px;
}

.tutorial-template-progress__label {
    display: block;
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.95rem;
}

.tutorial-template-progress__track {
    height: 0.6rem;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
}

.tutorial-template-progress__fill {
    height: 100%;
    border-radius: inherit;
    background: #ffffff;
}

.tutorial-template-layout {
    display: grid;
    grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
    gap: 2rem;
    align-items: start;
    padding: 2rem 0 4rem;
}

.tutorial-template-sidebar {
    position: sticky;
    top: 6rem;
    display: grid;
    gap: 1rem;
}

.tutorial-template-chapter-nav,
.tutorial-template-section-nav {
    border: 1px solid var(--tutorial-template-border);
    border-radius: var(--tutorial-template-radius);
    background: var(--tutorial-template-surface);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.tutorial-template-chapter-nav__list {
    display: grid;
    gap: 0.25rem;
    max-height: 55vh;
    margin: 0;
    padding: 0.75rem;
    overflow: auto;
    list-style: none;
}

.tutorial-template-chapter-nav__link,
.tutorial-template-section-nav__link {
    display: grid;
    gap: 0.2rem;
    padding: 0.8rem;
    border-radius: 0.85rem;
    color: var(--tutorial-template-text);
    text-decoration: none;
    transition: background 150ms ease, color 150ms ease, transform 150ms ease;
}

.tutorial-template-chapter-nav__link:hover,
.tutorial-template-section-nav__link:hover,
.tutorial-template-chapter-nav__link.is-active {
    background: #eff6ff;
    color: var(--tutorial-template-primary-dark);
}

.tutorial-template-chapter-nav__link:hover,
.tutorial-template-section-nav__link:hover {
    transform: translateX(2px);
}

.tutorial-template-chapter-nav__number {
    color: var(--tutorial-template-muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.tutorial-template-chapter-nav__title {
    font-weight: 700;
    line-height: 1.35;
}

.tutorial-template-section-nav {
    display: grid;
    gap: 0.2rem;
    padding: 0.75rem;
}

.tutorial-template-section-nav__link {
    font-weight: 700;
}

.tutorial-template-section-nav__link.is-active {
    background: #eff6ff;
    color: var(--tutorial-template-primary-dark);
}

.tutorial-template-main {
    display: grid;
    gap: 1.5rem;
}

.tutorial-template-main main[style*="padding-top"] {
    padding-top: 0 !important;
}

.tutorial-template-main .tutorial-header,
.tutorial-template-main .nlp-header,
.tutorial-template-main .course-nav,
.tutorial-template-main .chapter-navigation,
.tutorial-template-main .chapter-progress,
.tutorial-template-main .section-progress,
.tutorial-template-main .progress-bar,
.tutorial-template-main .progress-tracker,
.tutorial-template-main .learning-objectives-box,
.tutorial-template-main .tutorial-main-title,
.tutorial-template-main .tutorial-subtitle {
    display: none !important;
}

.tutorial-template-card {
    border: 1px solid var(--tutorial-template-border);
    border-radius: var(--tutorial-template-radius);
    background: var(--tutorial-template-surface);
    padding: clamp(1.25rem, 3vw, 2rem);
    box-shadow: 0 16px 38px rgba(15, 23, 42, 0.07);
}

.tutorial-template-card h2 {
    margin: 0 0 1rem;
    color: var(--tutorial-template-text);
    font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.tutorial-template-card h3 {
    margin: 1.25rem 0 0.65rem;
    color: var(--tutorial-template-text);
}

.tutorial-template-card p,
.tutorial-template-card li,
.tutorial-template-card dd {
    color: var(--tutorial-template-muted);
    line-height: 1.75;
}

.tutorial-template-eyebrow {
    margin: 0 0 0.5rem;
    color: var(--tutorial-template-primary);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.tutorial-template-objectives__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    margin: 1.25rem 0 0;
    padding: 0;
    list-style: none;
}

.tutorial-template-objectives__list li {
    border: 1px solid #bfdbfe;
    border-radius: 0.9rem;
    background: #eff6ff;
    padding: 0.9rem 1rem;
    color: #1e3a8a;
    font-weight: 700;
}

.tutorial-template-formula__display {
    margin: 1.25rem 0;
    padding: 1.25rem;
    overflow-x: auto;
    border-radius: 1rem;
    background: #0f172a;
    color: #ffffff;
}

.tutorial-template-formula {
    display: grid;
    gap: 1rem;
}

.tutorial-template-formula h3,
.tutorial-template-formula h4 {
    color: var(--tutorial-template-text);
}

.tutorial-template-formula code,
.tutorial-template-formula pre {
    white-space: pre-wrap;
}

.tutorial-template-definition-list {
    display: grid;
    gap: 0.75rem;
    margin: 0;
}

.tutorial-template-definition-list div {
    display: grid;
    grid-template-columns: minmax(5rem, 8rem) 1fr;
    gap: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--tutorial-template-border);
}

.tutorial-template-definition-list dt {
    color: var(--tutorial-template-text);
    font-family: "JetBrains Mono", monospace;
    font-weight: 800;
}

.tutorial-template-definition-list dd {
    margin: 0;
}

.tutorial-template-callout,
.tutorial-template-lab__prompt,
.tutorial-template-lab__expected {
    margin-top: 1rem;
    border-left: 4px solid var(--tutorial-template-primary);
    border-radius: 0.8rem;
    background: #eff6ff;
    padding: 1rem;
}

.tutorial-template-lab__expected {
    border-left-color: #16a34a;
    background: #f0fdf4;
}

.tutorial-template-lab__planned,
.tutorial-template-example {
    margin: 1.25rem 0;
    border: 1px solid var(--tutorial-template-border);
    border-radius: 1rem;
    background: #f8fafc;
    padding: 1rem;
}

.tutorial-template-lab__planned {
    border-style: dashed;
    background: #fffbeb;
}

.tutorial-template-lab__planned h4,
.tutorial-template-example h4,
.tutorial-template-example h5 {
    margin-top: 0;
    color: var(--tutorial-template-text);
}

.tutorial-template-quiz,
.enhanced-quiz-container,
.quiz-container,
.quiz-question {
    display: grid;
    gap: 0.85rem;
}

.enhanced-quiz-option,
.quiz-option {
    cursor: pointer;
    border: 1px solid var(--tutorial-template-border);
    border-radius: 0.9rem;
    background: #ffffff;
    padding: 0.85rem 1rem;
    color: var(--tutorial-template-text);
    transition: border-color 150ms ease, background 150ms ease, transform 150ms ease;
}

.enhanced-quiz-option:hover,
.quiz-option:hover {
    border-color: var(--tutorial-template-primary);
    background: #eff6ff;
    transform: translateY(-1px);
}

.enhanced-quiz-option.correct,
.quiz-option.correct {
    border-color: #16a34a;
    background: #f0fdf4;
    color: #166534;
}

.enhanced-quiz-option.incorrect,
.quiz-option.incorrect {
    border-color: #dc2626;
    background: #fef2f2;
    color: #991b1b;
}

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

.enhanced-quiz-explanation,
.quiz-explanation {
    display: none;
    border-left: 4px solid var(--tutorial-template-primary);
    border-radius: 0.8rem;
    background: #eff6ff;
    padding: 1rem;
}

.tutorial-template-summary__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.tutorial-template-prev-next {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.tutorial-template-prev-next__link {
    display: grid;
    gap: 0.3rem;
    border: 1px solid var(--tutorial-template-border);
    border-radius: var(--tutorial-template-radius);
    background: var(--tutorial-template-surface);
    padding: 1rem;
    color: var(--tutorial-template-text);
    text-decoration: none;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.tutorial-template-prev-next__link span {
    color: var(--tutorial-template-muted);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.tutorial-template-prev-next__link.is-next {
    text-align: right;
}

.tutorial-template-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--tutorial-template-primary);
    padding: 0.75rem 1.1rem;
    color: #ffffff;
    font-weight: 800;
    text-decoration: none;
}

.tutorial-template-button:hover {
    background: var(--tutorial-template-primary-dark);
    color: #ffffff;
}

.tutorial-index-layout {
    grid-template-columns: minmax(180px, 240px) minmax(0, 1fr);
}

.tutorial-index-chapters__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.tutorial-index-chapter-card {
    display: grid;
    gap: 0.45rem;
    border: 1px solid var(--tutorial-template-border);
    border-radius: 1rem;
    background: #f8fafc;
    padding: 1rem;
    color: var(--tutorial-template-text);
    text-decoration: none;
    transition: border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.tutorial-index-chapter-card:hover {
    border-color: var(--tutorial-template-primary);
    box-shadow: 0 16px 30px rgba(37, 99, 235, 0.12);
    transform: translateY(-2px);
}

.tutorial-index-chapter-card__number,
.tutorial-index-chapter-card span:last-child {
    color: var(--tutorial-template-muted);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.tutorial-single-page-content {
    overflow: hidden;
}

.tutorial-single-page-content > :first-child {
    margin-top: 0;
}

.tutorial-single-page-shell .tutorial-template-main .course-nav {
    display: flex !important;
}

.tutorial-single-page-shell .tutorial-template-main .tutorial-section,
.tutorial-single-page-shell .tutorial-template-main .nlp-section,
.tutorial-single-page-shell .tutorial-template-main .content-section {
    scroll-margin-top: 6rem;
}

.tutorial-single-page-shell .tutorial-template-main .back-to-tutorials,
.tutorial-single-page-shell .tutorial-template-main .tutorial-container > .tutorial-header {
    display: none !important;
}

@media (max-width: 900px) {
    .tutorial-template-layout,
    .tutorial-template-objectives__list,
    .tutorial-template-summary__grid,
    .tutorial-template-prev-next {
        grid-template-columns: 1fr;
    }

    .tutorial-template-sidebar {
        position: static;
    }

    .tutorial-template-chapter-nav__list {
        max-height: none;
    }
}

@media (max-width: 560px) {
    .tutorial-template-hero {
        padding-top: 6rem;
    }

    .tutorial-template-definition-list div {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }
}