:root {
    --bg: #0f172a;
    --bg-soft: #111827;
    --card: #172033;
    --card-2: #1e293b;
    --text: #e5eefc;
    --muted: #9fb0cc;
    --line: rgba(255, 255, 255, 0.08);
    --accent: #60a5fa;
    --accent-2: #93c5fd;
    --white: #ffffff;
}

* {
    box-sizing: border-box;
}

.course-hero,
.course-section,
.course-cta {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
}

.course-hero {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 32px;
    align-items: center;
    padding: 56px 0 32px;
}

.course-badge,
.section-label {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(96, 165, 250, 0.12);
    border: 1px solid rgba(96, 165, 250, 0.25);
    color: var(--accent-2);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.course-hero h1,
.course-section h2,
.course-cta h2 {
    margin: 0 0 16px;
    color: var(--text);
    line-height: 1.1;
}

.course-hero h1 {
    font-size: clamp(2.2rem, 4vw, 4rem);
}

.course-section h2,
.course-cta h2 {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.course-hero__text,
.section-heading p,
.split-content p,
.timeline-card p,
.info-card p,
.course-cta p {
    color: var(--muted);
    line-height: 1.7;
    font-size: 1rem;
}

.course-meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(180px, 1fr));
    gap: 14px;
    margin: 28px 0;
}

.course-meta__item {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 16px;
}

.course-meta__label {
    display: block;
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 6px;
}

.course-meta__value {
    color: var(--text);
    font-weight: 600;
}

.course-highlight {
    color: var(--text);
    margin-bottom: 24px;
}

.course-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 20px;
    border-radius: 14px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.2s ease;
}

.btn-primary {
    background: var(--accent);
    color: #08111f;
}

    .btn-primary:hover {
        transform: translateY(-1px);
        filter: brightness(1.05);
    }

.btn-secondary {
    border: 1px solid var(--line);
    color: var(--text);
    background: transparent;
}

    .btn-secondary:hover {
        background: rgba(255, 255, 255, 0.04);
    }

.course-hero__media img,
.split-media img,
.timeline-card__media img,
.project-card img,
.student-gallery img {
    width: 100%;
    display: block;
    border-radius: 24px;
    border: 1px solid var(--line);
}

.course-section {
    padding: 48px 0;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 28px;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.project-card,
.info-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 22px;
    overflow: hidden;
}

    .project-card h3,
    .info-card h3,
    .timeline-card h3 {
        color: var(--text);
        margin: 0 0 10px;
    }

    .project-card h3,
    .project-card p {
        padding-left: 18px;
        padding-right: 18px;
    }

    .project-card h3 {
        padding-top: 18px;
    }

    .project-card p {
        padding-bottom: 20px;
        color: var(--muted);
        line-height: 1.6;
    }

.course-section--split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: center;
}

.course-section--reverse .split-content {
    order: 2;
}

.course-section--reverse .split-media {
    order: 1;
}

.feature-list {
    padding-left: 20px;
    color: var(--text);
    line-height: 1.9;
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.timeline-card {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 24px;
    align-items: center;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 24px;
}

.timeline-card--reverse .timeline-card__content {
    order: 2;
}

.timeline-card--reverse .timeline-card__media {
    order: 1;
}

.timeline-card__step {
    display: inline-block;
    margin-bottom: 12px;
    color: var(--accent-2);
    font-weight: 700;
}

.timeline-card__hours {
    color: var(--text);
    font-weight: 600;
    margin-bottom: 12px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.info-card {
    padding: 22px;
}

.student-gallery {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.course-cta {
    padding: 40px 0 72px;
}

.course-cta__content {
    background: linear-gradient(180deg, rgba(96, 165, 250, 0.08), rgba(255, 255, 255, 0.02));
    border: 1px solid var(--line);
    border-radius: 28px;
    padding: 40px;
    text-align: center;
}

@media (max-width: 992px) {
    .course-hero,
    .course-section--split,
    .timeline-card,
    .timeline-card--reverse {
        grid-template-columns: 1fr;
    }

    .course-hero__media,
    .split-media,
    .timeline-card__media {
        order: 2;
    }

    .course-hero__content,
    .split-content,
    .timeline-card__content {
        order: 1;
    }

    .project-grid,
    .info-grid,
    .student-gallery {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .course-hero,
    .course-section,
    .course-cta {
        width: min(100% - 20px, 1200px);
    }

    .course-meta,
    .project-grid,
    .info-grid,
    .student-gallery {
        grid-template-columns: 1fr;
    }

    .course-hero {
        padding-top: 32px;
    }

    .course-cta__content {
        padding: 28px 20px;
    }
}