/* ==========================================
   Styles for single-course.html
   ========================================== */
body.page-single-course {
    --primary-color: #b00020;
    --on-primary: #ffffff;
    --background: #f9f9f9;
    --on-background: #1a1c1c;
    --surface: #ffffff;
    --secondary: #5e5e5e;
}

body.page-single-course {
    font-family: 'Inter', sans-serif;
    background-color: var(--background);
    color: var(--on-background);
    -webkit-font-smoothing: antialiased;
}

.page-single-course .font-label {
    font-family: 'Geist', sans-serif;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.page-single-course .btn-primary-zen {
    background-color: var(--primary-color);
    color: white;
    border-radius: 0;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 10px 24px;
    border: none;
    transition: all 0.3s ease;
}

.page-single-course .btn-primary-zen:hover {
    background-color: var(--on-background);
    color: white;
}

.page-single-course .navbar {
    height: 80px;
    border-bottom: 2px solid var(--on-background);
    background-color: var(--background) !important;
}

.page-single-course .navbar-brand {
    font-weight: 900;
    letter-spacing: -1px;
    text-transform: uppercase;
}

.page-single-course .hero-section {
    background-color: var(--on-background);
    padding: 80px 0;
}

.page-single-course .hero-title {
    font-weight: 800;
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.1;
    letter-spacing: -0.04em;
}

.page-single-course .text-primary-zen {
    color: var(--primary-color);
}

.page-single-course .video-placeholder {
    border: 2px solid var(--primary-color);
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    cursor: pointer;
}

.page-single-course .play-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    transition: background 0.3s;
    z-index: 2;
}

.page-single-course .play-overlay:hover {
    background: rgba(0, 0, 0, 0.2);
}

.page-single-course .play-btn {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s;
}

.page-single-course .video-placeholder:hover .play-btn {
    transform: scale(1.1);
}

.page-single-course .feature-card {
    border: 2px solid var(--on-background);
    background: white;
    padding: 2rem;
    transition: all 0.3s;
    height: 100%;
}

.page-single-course .feature-card:hover {
    background: var(--primary-color);
    color: white;
}

.page-single-course .feature-card:hover .material-symbols-outlined {
    color: white !important;
}

.page-single-course .accordion-item {
    border: 2px solid var(--on-background) !important;
    margin-bottom: 1rem;
    border-radius: 0 !important;
}

.page-single-course .accordion-button {
    border-radius: 0 !important;
    font-weight: 700;
    text-transform: uppercase;
    background-color: #eeeeee;
    color: var(--on-background);
}

.page-single-course .accordion-button:not(.collapsed) {
    background-color: var(--on-background);
    color: white;
}

.page-single-course .accordion-button::after {
    filter: grayscale(1) invert(1);
}

.page-single-course .accordion-button:not(.collapsed)::after {
    filter: none;
}

.page-single-course .instructor-card {
    background: var(--on-background);
    color: white;
    border: 2px solid var(--primary-color);
    padding: 3rem;
}

.page-single-course .instructor-img {
    border: 4px solid var(--primary-color);
    width: 100%;
    max-width: 200px;
}

.page-single-course .sticky-sidebar {
    top: 100px;
}

.page-single-course .pricing-card {
    border: 2px solid var(--on-background);
    background: white;
    padding: 2rem;
    box-shadow: 8px 8px 0px 0px rgba(0, 0, 0, 1);
}

.page-single-course .footer {
    background-color: var(--on-background);
    border-top: 2px solid var(--primary-color);
    color: #e2e2e2;
}

.page-single-course .material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
}