@import url('https://fonts.googleapis.com/css2?family=Inter:wght@100..900&display=swap');

:root {
    --bg-dark: #111111;
    --bg-light: rgba(35, 35, 35, 0.6);
    --txt-clr: #f0f0f0;
    --accent: #01349b;
    --accent-light: #4a7bc6;
    --gradient-start: #0f2027;
    --gradient-end: #203a43;
    --f-inter: 'Inter', sans-serif;
    --border-radius: 14px;
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 18px 60px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--f-inter);
    color: var(--txt-clr);
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: var(--txt-clr);
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--accent);
    color: white;
    padding: 8px;
    z-index: 1000;
    transition: top 0.3s;
}

/* HEADER */
.main-header {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    padding: 1rem 0;
    border-bottom: 3px solid var(--accent-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.4em;
}

.logo img {
    margin-right: 0.625rem;
}

.nav-links {
    display: flex;
    gap: 1rem;
}

.nav-links a {
    padding: 0.5rem 1rem;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 5px;
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a:focus {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    transform: translateY(-2px);
    outline: 2px solid var(--accent-light);
    outline-offset: 2px;
}

/* HERO */
.hero-section {
    padding: clamp(90px, 10vw, 120px) 2rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(1, 52, 155, 0.7), rgba(74, 123, 198, 0.7)),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    border-radius: var(--border-radius);
    margin: 2.5rem auto;
    max-width: 1000px;
    box-shadow: var(--shadow-md);
}

.hero-section h1 {
    font-size: clamp(2.5rem, 6vw, 4.2rem);
    font-weight: 800;
    margin-bottom: 1.25rem;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: 1.25em;
    font-weight: 300;
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn-primary {
    display: inline-block;
    padding: 1rem 2rem;
    font-weight: 700;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    box-shadow: 0 8px 22px rgba(74, 123, 198, 0.6);
    transition: var(--transition);
}

.btn-primary:hover,
.btn-primary:focus {
    transform: scale(1.05);
    box-shadow: 0 14px 32px rgba(74, 123, 198, 0.8);
    outline: 2px solid var(--accent-light);
    outline-offset: 2px;
}

/* SECTIONS */
.section-padded {
    padding: 5rem 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.2em);
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-secondary {
    background: linear-gradient(135deg, var(--bg-dark), var(--bg-light));
    border-radius: var(--border-radius);
    margin: 2.5rem auto;
    max-width: 1200px;
    padding: 2rem;
}

/* COMMUNITY & LINKS GRIDS */
.community-grid,
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    justify-items: center;
}

.community-card,
.link-card {
    background: var(--bg-light);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--border-radius);
    border-bottom: 5px solid var(--accent);
    text-align: center;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(2.5rem);
}

.community-card.scrolled,
.link-card.scrolled {
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 0.6s ease-out forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.community-card:hover,
.link-card:hover,
.community-card:focus-within,
.link-card:focus-within {
    transform: translateY(-0.5rem) scale(1.02);
    box-shadow: 0 20px 50px rgba(1, 52, 155, 0.5);
}

.community-card h3,
.link-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25em;
}

.links-description {
    max-width: 700px;
    margin: 0 auto 2rem auto;
    text-align: center;
    font-size: 1.1em;
    font-weight: 300;
}

/* FOOTER */
.main-footer {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    text-align: center;
    padding: 1.5rem 0;
    font-size: 0.9em;
}

/* RESPONSIVE DESIGN */
@media (max-width: 768px) {
    .nav-links {
        gap: 0.5rem;
    }

    .nav-links a {
        padding: 0.375rem 0.625rem;
        font-size: 0.875em;
    }

    .hero-section {
        padding: 5rem 1.5rem;
        margin: 1.5rem auto;
    }

    .hero-section h1 {
        font-size: 2.5rem;
    }

    .section-padded {
        padding: 3rem 0;
    }

    .bg-secondary {
        margin: 1.5rem auto;
        padding: 1.5rem;
    }

    .community-grid,
    .links-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }

    .logo span {
        font-size: 1.2em;
    }

    .btn-primary {
        padding: 0.875rem 1.5rem;
        font-size: 0.95em;
    }
}

/* Added: High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --bg-light: rgba(35, 35, 35, 0.8);
        --txt-clr: #ffffff;
    }

    .btn-primary {
        border: 2px solid var(--accent-light);
    }
}

/* Added: Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }

    .community-card,
    .link-card {
        opacity: 1;
        transform: none;
    }
}