:root {
    --course-ink: #163046;
    --course-muted: #5e7284;
    --course-paper: #fffdf8;
    --course-panel: #ffffff;
    --course-line: #dbe4ea;
    --course-soft: #eef5f7;
    --course-primary: #0f8b8d;
    --course-primary-deep: #0b6466;
    --course-accent: #f4b942;
    --course-accent-soft: #fff1c9;
    --course-danger: #b94a48;
    --course-shadow: 0 24px 60px rgba(16, 52, 77, 0.12);
    --course-radius: 28px;
}

html {
    scroll-behavior: smooth;
}

body {
    background:
        radial-gradient(circle at top left, rgba(244, 185, 66, 0.14), transparent 28%),
        linear-gradient(180deg, #f9fcfd 0%, #fffaf0 100%);
}

.course-page {
    color: var(--course-ink);
    font-family: "Manrope", sans-serif;
    padding-bottom: 5rem;
}

.course-page h1,
.course-page h2,
.course-page h3,
.course-page .hero-card__title,
.course-page .stat-value {
    font-family: "Space Grotesk", sans-serif;
    letter-spacing: -0.03em;
}

.course-page a {
    text-decoration: none;
}

.course-page section[id] {
    scroll-margin-top: 110px;
}

.course-hero,
.course-section {
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(219, 228, 234, 0.9);
    border-radius: var(--course-radius);
    box-shadow: var(--course-shadow);
    position: relative;
    overflow: hidden;
}

.course-hero {
    padding: 2rem;
    margin-bottom: 2rem;
    background:
        radial-gradient(circle at top right, rgba(15, 139, 141, 0.18), transparent 28%),
        radial-gradient(circle at bottom left, rgba(244, 185, 66, 0.22), transparent 28%),
        linear-gradient(135deg, #f7fffe 0%, #fffaf0 100%);
}

.course-hero__grid {
    display: grid;
    gap: 1.5rem;
}

.eyebrow-row,
.hero-badges,
.hero-actions,
.hero-trustbar,
.highlight-grid,
.seo-copy__grid,
.trust-badges,
.roadmap-grid,
.testimonial-grid {
    display: grid;
    gap: 1rem;
}

.eyebrow-row {
    grid-template-columns: repeat(2, max-content);
}

.eyebrow-pill,
.section-tag,
.tutor-badge,
.roadmap-phase {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    width: fit-content;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
}

.eyebrow-pill,
.section-tag,
.roadmap-phase {
    color: var(--course-primary-deep);
    background: rgba(15, 139, 141, 0.12);
}

.eyebrow-pill--warm,
.tutor-badge {
    color: #8b5a00;
    background: var(--course-accent-soft);
}

.course-hero h1 {
    font-size: clamp(2.2rem, 5vw, 4.25rem);
    margin: 1rem 0 0.75rem;
}

.course-hero__lead {
    font-size: 1.2rem;
    font-weight: 700;
    max-width: 56rem;
    margin-bottom: 0.85rem;
}

.course-hero__copy,
.section-header p,
.highlight-card p,
.seo-copy__card p,
.tutor-card__content p,
.roadmap-card p,
.testimonial-card p,
.selection-card__header p,
.selection-summary__footnote,
.selection-note,
.accordion-body {
    color: var(--course-muted);
    line-height: 1.7;
}

.hero-badges {
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    margin: 1.5rem 0;
}

.hero-badges span,
.trust-badges span {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.95rem 1rem;
    border-radius: 18px;
    background: var(--course-panel);
    border: 1px solid var(--course-line);
    font-weight: 700;
}

.hero-badges i,
.notice-banner i,
.selection-summary__alert i,
.selection-note i,
.highlight-card i {
    color: var(--course-primary);
}

.hero-badges__warning i {
    color: var(--course-danger);
}

.hero-actions {
    grid-template-columns: repeat(auto-fit, minmax(180px, max-content));
    margin-bottom: 1.5rem;
}

.btn-course-primary,
.btn-course-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0.9rem 1.4rem;
    border-radius: 16px;
    font-weight: 800;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn-course-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--course-primary) 0%, var(--course-primary-deep) 100%);
    box-shadow: 0 16px 28px rgba(15, 139, 141, 0.24);
    border: none;
}

.btn-course-secondary {
    color: var(--course-ink);
    background: #fff;
    border: 1px solid var(--course-line);
}

.btn-course-primary:hover,
.btn-course-secondary:hover {
    transform: translateY(-2px);
}

.hero-trustbar {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    padding: 1rem;
    border-radius: 22px;
    background: rgba(22, 48, 70, 0.04);
}

.hero-trustbar div {
    display: grid;
    gap: 0.2rem;
}

.hero-trustbar strong {
    font-size: 1rem;
}

.hero-trustbar span {
    color: var(--course-muted);
    font-size: 0.95rem;
}

.hero-card {
    background: linear-gradient(180deg, #14344b 0%, #0d2537 100%);
    color: #fff;
    border-radius: 24px;
    padding: 1.5rem;
    display: grid;
    gap: 1rem;
}

.hero-card__topline {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 800;
}

.hero-card__title {
    font-size: 1.55rem;
    line-height: 1.25;
}

.hero-card p,
.hero-card__note {
    color: rgba(255, 255, 255, 0.78);
}

.hero-card__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.hero-card__stats div {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    padding: 1rem 0.8rem;
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.hero-card__note {
    display: flex;
    gap: 0.7rem;
    align-items: start;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 0.9rem 1rem;
}

.course-section {
    padding: 2rem;
    margin-bottom: 2rem;
}

.section-header {
    margin-bottom: 1.5rem;
}

.section-header h2 {
    font-size: clamp(1.8rem, 3.6vw, 2.75rem);
    margin: 0.85rem 0 0.6rem;
}

.highlight-grid,
.seo-copy__grid,
.testimonial-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.highlight-card,
.seo-copy__card,
.roadmap-card,
.testimonial-card,
.selection-card,
.selection-summary {
    background: var(--course-panel);
    border: 1px solid var(--course-line);
    border-radius: 24px;
    padding: 1.4rem;
}

.highlight-card i {
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
}

.highlight-card h3,
.seo-copy__card h3,
.roadmap-card h3,
.selection-card__header h3,
.selection-summary h3 {
    margin-bottom: 0.55rem;
    font-size: 1.2rem;
}

.notice-banner {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-top: 1.25rem;
    padding: 1rem 1.1rem;
    border-radius: 18px;
    background: var(--course-accent-soft);
    color: #7a5200;
    font-weight: 700;
}

.tutor-card {
    display: grid;
    gap: 1.4rem;
    align-items: center;
    background: linear-gradient(180deg, #fff 0%, #f8fbfb 100%);
    border: 1px solid var(--course-line);
    border-radius: 28px;
    padding: 1.4rem;
}

.tutor-card__media img {
    width: 100%;
    max-width: 280px;
    display: block;
    border-radius: 22px;
    box-shadow: 0 20px 38px rgba(22, 48, 70, 0.15);
}

.trust-badges {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    margin-top: 1.25rem;
}

.course-accordion__item {
    border: 1px solid var(--course-line);
    border-radius: 20px !important;
    overflow: hidden;
    margin-bottom: 1rem;
}

.course-accordion .accordion-button {
    background: #fff;
    color: var(--course-ink);
    font-weight: 800;
    box-shadow: none;
    gap: 0.95rem;
    align-items: start;
}

.course-accordion .accordion-button:not(.collapsed) {
    background: rgba(15, 139, 141, 0.08);
}

.accordion-index {
    width: 2rem;
    height: 2rem;
    flex: 0 0 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--course-ink);
    color: #fff;
    font-size: 0.88rem;
}

.roadmap-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.roadmap-card {
    position: relative;
}

.roadmap-card::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 6px;
    border-radius: 999px;
    background: linear-gradient(180deg, var(--course-primary) 0%, var(--course-accent) 100%);
}

.roadmap-card {
    padding-left: 1.7rem;
}

.enrollment-layout {
    display: grid;
    gap: 1.4rem;
}

.enrollment-main {
    display: grid;
    gap: 1.25rem;
}

.daily-slot-groups {
    display: grid;
    gap: 1.1rem;
}

.daily-slot-group {
    padding: 1rem;
    border-radius: 22px;
    background: linear-gradient(180deg, #fbfefe 0%, #fffdf7 100%);
    border: 1px solid var(--course-line);
}

.daily-slot-group__header {
    margin-bottom: 0.9rem;
}

.daily-slot-group__header h4 {
    margin: 0 0 0.3rem;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.1rem;
}

.daily-slot-group__header p {
    margin: 0;
    color: var(--course-muted);
}

.option-grid,
.time-slot-grid {
    display: grid;
    gap: 0.9rem;
}

.option-grid--days,
.option-grid--types,
.option-grid--languages,
.time-slot-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.option-tile {
    cursor: pointer;
    margin: 0;
}

.option-tile input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.option-tile__body {
    display: grid;
    gap: 0.35rem;
    padding: 1rem;
    height: 100%;
    border-radius: 20px;
    background: #fff;
    border: 1px solid var(--course-line);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.option-tile__body strong {
    font-size: 1.02rem;
}

.option-tile__body small,
.option-tile__body em {
    color: var(--course-muted);
    font-style: normal;
}

.option-tile input:checked + .option-tile__body {
    border-color: var(--course-primary);
    background: rgba(15, 139, 141, 0.08);
    box-shadow: 0 12px 24px rgba(15, 139, 141, 0.12);
    transform: translateY(-2px);
}

.selection-note {
    margin: 1rem 0 0;
    display: flex;
    gap: 0.65rem;
    align-items: start;
}

.selection-summary {
    position: sticky;
    top: 88px;
    display: grid;
    gap: 1rem;
}

.selection-summary__eyebrow {
    color: var(--course-primary-deep);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.8rem;
}

.selection-summary ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.85rem;
}

.selection-summary li {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--course-line);
}

.selection-summary li span {
    color: var(--course-muted);
}

.selection-summary li strong {
    text-align: right;
}

.selection-summary__alert {
    display: flex;
    gap: 0.7rem;
    align-items: start;
    padding: 0.9rem 1rem;
    border-radius: 18px;
    background: var(--course-accent-soft);
    color: #7a5200;
    font-weight: 700;
}

.btn-course-submit {
    width: 100%;
}

.btn-course-submit:disabled {
    cursor: not-allowed;
    opacity: 0.55;
    box-shadow: none;
}

.testimonial-card .stars {
    color: var(--course-accent);
    letter-spacing: 0.2em;
    margin-bottom: 0.75rem;
}

.sticky-course-cta {
    position: fixed;
    left: 50%;
    bottom: 1rem;
    transform: translateX(-50%);
    width: min(960px, calc(100% - 1.25rem));
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    padding: 0.95rem 1rem;
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    background: rgba(12, 28, 43, 0.92);
    color: #fff;
    box-shadow: 0 20px 42px rgba(8, 20, 32, 0.32);
    backdrop-filter: blur(12px);
    z-index: 1025;
}

.sticky-course-cta strong {
    display: block;
}

.sticky-course-cta span {
    display: block;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.92rem;
}

@media (min-width: 768px) {
    .course-hero__grid,
    .tutor-card,
    .enrollment-layout {
        grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.9fr);
    }

    .tutor-card {
        grid-template-columns: 280px minmax(0, 1fr);
    }
}

@media (max-width: 767.98px) {
    .course-hero,
    .course-section {
        padding: 1.35rem;
        border-radius: 22px;
    }

    .hero-card__stats {
        grid-template-columns: 1fr;
    }

    .selection-summary {
        position: static;
    }

    .sticky-course-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .sticky-course-cta .btn-course-primary {
        width: 100%;
    }
}