:root {
        --bs-body-bg: #fbfbf2;
        --bs-body-color: #1b2420;
        --primary-color: #417E20;
        --primary-color-light: #52a128;
        --secondary-color: #aed9e0;
        --surface-color: #ffffff;
        --muted-color: #5e6f64;
        --border-color: #e0e5d8;
    }

    body {
        font-family: 'Noto Sans', sans-serif;
        background-color: var(--bs-body-bg);
        color: var(--bs-body-color);
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6,
    .navbar-brand,
    .btn {
        font-family: 'Spline Sans', sans-serif;
    }

    .text-primary-custom {
        color: var(--primary-color) !important;
    }

    .text-muted-custom {
        color: var(--muted-color) !important;
    }

    .bg-surface {
        background-color: var(--surface-color);
    }

    .bg-alt {
        background-color: #edf6f9;
    }

    .btn-primary-custom {
        background-color: var(--primary-color-light);
        border-color: var(--primary-color-light);
        color: #1b2420;
        font-weight: 700;
        border-radius: 50rem;
        padding: 0.75rem 2rem;
        transition: all 0.3s ease;
    }

    .btn-primary-custom:hover {
        background-color: #7da55d;
        border-color: #7da55d;
        transform: translateY(-2px);
        color: #000;
    }

    .btn-outline-custom {
        background-color: var(--surface-color);
        border: 1px solid var(--border-color);
        color: var(--bs-body-color);
        font-weight: 700;
        border-radius: 50rem;
        padding: 0.75rem 2rem;
        transition: all 0.3s ease;
    }

    .btn-outline-custom:hover {
        background-color: #f0f0f0;
        border-color: #d0d0d0;
        color: #000;
    }


    .material-symbols-outlined {
        vertical-align: middle;
    }

    .symbol-filled {
        font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    }

    .hero-section {
        padding: 5rem 0;
    }

    .hero-badge {
        background-color: var(--surface-color);
        border: 1px solid var(--border-color);
        border-radius: 50rem;
        padding: 0.25rem 0.75rem;
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 0.8rem;
        font-weight: 600;
    }

    .hero-image-container {
        border-radius: 1rem;
        overflow: hidden;
        box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        position: relative;
    }

    .hero-overlay-card {
        background-color: rgba(255, 255, 255, 0.9);
        backdrop-filter: blur(4px);
        border-radius: 0.5rem;
        padding: 1rem;
        display: flex;
        align-items: center;
        gap: 1rem;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    }

    .feature-card {
        background-color: var(--bs-body-bg);
        border: 1px solid var(--border-color);
        border-radius: 1rem;
        padding: 1.5rem;
        height: 100%;
        transition: border-color 0.3s ease;
    }

    .feature-card:hover {
        border-color: var(--primary-color-light);
    }

    .icon-box {
        width: 3rem;
        height: 3rem;
        background-color: var(--surface-color);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 1rem;
        transition: background-color 0.3s ease;
    }

    .feature-card:hover .icon-box {
        background-color: var(--primary-color-light);
        color: #fff;
    }

    .syllabus-item {
        background-color: var(--surface-color);
        border: 1px solid var(--border-color);
        border-radius: 0.75rem;
        padding: 1.5rem;
        margin-bottom: 1rem;
        transition: transform 0.2s ease;
    }

    .syllabus-number {
        width: 2rem;
        height: 2rem;
        background-color: var(--bs-body-bg);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 0.875rem;
        color: var(--muted-color);
    }

    .instructor-img {
        width: 200px;
        height: 200px;
        object-fit: cover;
        border-radius: 50%;
        border: 4px solid var(--surface-color);
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    }

    .review-card {
        background-color: var(--surface-color);
        border: 1px solid var(--border-color);
        border-radius: 1rem;
        padding: 2rem;
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .star-rating {
        color: #f4a261;
        margin-bottom: 1rem;
    }

    .pricing-card {
        background-color: var(--surface-color);
        border: 2px solid var(--primary-color);
        border-radius: 1rem;
        padding: 2rem;
        box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
        position: relative;
    }

    .badge-offer {
        background-color: var(--primary-color-light);
        color: #000;
        font-weight: 700;
        font-size: 0.875rem;
        padding: 0.25rem 1rem;
        border-radius: 50rem;
        position: absolute;
        top: -15px;
        left: 50%;
        transform: translateX(-50%);
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    }

    .promo-section {
        background-color: var(--bs-body-color);
        color: var(--surface-color);
        position: relative;
        overflow: hidden;
    }

    .promo-bg-glow {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 100%;
        height: 100%;
        background: radial-gradient(circle at center, rgba(140, 179, 105, 0.15) 0%, rgba(27, 36, 32, 0) 70%);
        pointer-events: none;
        z-index: 1;
    }

    .promo-content {
        position: relative;
        z-index: 2;
    }

    .badge-promo {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background-color: rgba(140, 179, 105, 0.15);
        color: var(--primary-color);
        border: 1px solid rgba(140, 179, 105, 0.3);
        padding: 0.5rem 1rem;
        border-radius: 50rem;
        font-weight: 600;
        font-size: 0.9rem;
    }

    .timer-box {
        text-align: center;
        min-width: 70px;
    }

    .timer-value {
        font-family: 'Spline Sans', sans-serif;
        font-weight: 700;
        font-size: 3rem;
        line-height: 1;
        color: var(--primary-color);
        margin-bottom: 0.25rem;
    }

    .timer-label {
        color: rgba(255, 255, 255, 0.6);
        font-size: 0.75rem;
        text-transform: uppercase;
        letter-spacing: 1px;
        font-weight: 500;
    }

    .timer-separator {
        font-size: 2rem;
        color: rgba(255, 255, 255, 0.2);
        font-weight: 300;
        margin-top: -1.5rem;
    }

    @media (max-width: 576px) {
        .timer-separator {
            display: none;
        }

        .timer-value {
            font-size: 2rem;
        }

        .timer-box {
            min-width: 60px;
        }
    }

    footer-section {
        border-top: 1px solid var(--border-color);
        background-color: var(--surface-color);
        padding: 3rem 0;
    }