:root {
    --bs-primary: #7289DA;
    --bs-secondary: #2B3035;
    --bs-success: #43B581;
    --bs-body-bg: #1A1D21;
    --bs-body-color: #FFFFFF;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    scroll-behavior: smooth;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* Custom Bootstrap overrides */
.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85);
    transition: color 0.2s ease;
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: var(--bs-primary);
}

.navbar-dark .navbar-toggler:focus {
    box-shadow: none;
}

.hero {
    background: url('images/vr-background.svg') center/cover no-repeat,
                linear-gradient(rgba(26, 29, 33, 0.6), rgba(43, 48, 53, 0.8));
    background-blend-mode: soft-light;
    padding: 6rem 0 4rem;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--bs-primary), var(--bs-success));
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(120deg, var(--bs-primary), var(--bs-success));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.join-button {
    background-color: var(--bs-primary);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 50rem;
    font-size: 1.25rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    border: 2px solid transparent;
}

.join-button:hover {
    background-color: transparent;
    border-color: var(--bs-primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(114, 137, 218, 0.3);
}

.features {
    padding: 5rem 0;
    background-color: rgba(43, 48, 53, 0.5);
}

.feature-card {
    background-color: rgba(43, 48, 53, 0.9);
    border: 1px solid rgba(114, 137, 218, 0.1);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--bs-primary);
    box-shadow: 0 5px 15px rgba(114, 137, 218, 0.2);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--bs-primary);
    margin-bottom: 1.5rem;
}

.resource-card {
    background-color: rgba(43, 48, 53, 0.9);
    border: 1px solid rgba(114, 137, 218, 0.1);
    border-radius: 1rem;
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
}

.resource-card:hover {
    transform: translateY(-5px);
    border-color: var(--bs-primary);
    box-shadow: 0 5px 15px rgba(114, 137, 218, 0.2);
}

.resource-icon {
    font-size: 2.5rem;
    color: var(--bs-primary);
    margin-bottom: 1.5rem;
}

.resource-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.resource-list li {
    margin-bottom: 1rem;
}

.resource-list li:last-child {
    margin-bottom: 0;
}

.resource-link {
    color: var(--bs-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    padding: 0.5rem;
    border-radius: 0.375rem;
}

.resource-link:hover {
    color: var(--bs-success);
    background-color: rgba(114, 137, 218, 0.1);
}

.resource-link i {
    font-size: 1.25rem;
}

.external-link::after {
    content: '\F1C5';
    font-family: 'bootstrap-icons';
    font-size: 0.875rem;
    margin-left: 0.5rem;
    opacity: 0.7;
}

.note {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(90deg, var(--bs-primary), var(--bs-success));
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 50rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: auto;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    box-shadow: 0 2px 4px rgba(114, 137, 218, 0.2);
}

.note::before {
    content: '\F4E4';
    font-family: 'bootstrap-icons';
    margin-right: 0.375rem;
    font-size: 0.875rem;
}

.category-header {
    position: relative;
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}

.category-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 4px;
    background: linear-gradient(90deg, var(--bs-primary), var(--bs-success));
    border-radius: 2px;
}

@media (max-width: 768px) {
    .resource-link {
        flex-wrap: wrap;
    }
    .note {
        margin-left: 2.25rem;
        margin-top: 0.5rem;
    }
    .hero h1 {
        font-size: 3rem;
    }
    .hero .subtitle {
        font-size: 1.25rem;
    }
}