:root {
    --bg-color: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-hover: rgba(56, 189, 248, 0.1);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg-color: #f8fafc;
        --text-primary: #0f172a;
        --text-secondary: #475569;
        --accent-color: #0284c7;
        --glass-bg: rgba(255, 255, 255, 0.7);
        --glass-border: rgba(0, 0, 0, 0.05);
        --card-hover: rgba(2, 132, 199, 0.05);
    }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Image Handling */
.background-image {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    object-fit: cover;
    opacity: 0.4;
    filter: blur(8px) brightness(0.7);
    transform: scale(1.1);
}

.container {
    width: 90%;
    max-width: 1200px;
    padding: 2rem;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
    animation: fadeIn 1s ease-out;
}

h1 {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    letter-spacing: -0.05em;
    text-align: center;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 12px rgba(0,0,0,0.1);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 600px;
    margin-bottom: 2rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 900px;
}

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1.5rem;
    padding: 2.5rem;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 0%, var(--card-hover) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.card:hover::before {
    opacity: 1;
}

.card-icon {
    font-size: 3rem;
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.card:hover .card-icon {
    color: var(--accent-color);
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    text-align: center;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 640px) {
    h1 { font-size: 2.5rem; }
    .container { padding: 1rem; }
}