:root {
    --primary: #dc3545; /* text-danger color */
    --primary-glow: rgba(220, 53, 69, 0.4);
    --bg: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text: #f8fafc;
    --text-dim: #94a3b8;
    --accent: #38bdf8;
}

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

body {
    font-family: 'Outfit', 'Inter', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
    padding: 2rem;
    overflow-x: hidden;
}

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

header {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeInDown 1s ease-out;
}

header h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

header p {
    color: var(--text-dim);
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out backwards;
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px -15px var(--primary-glow);
}

.card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.card p {
    color: var(--text-dim);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.code-snippet {
    background: #010409;
    padding: 1rem;
    border-radius: 12px;
    font-family: 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.9rem;
    color: #e6edf3;
    overflow-x: auto;
    border: 1px solid #30363d;
}

.footer {
    margin-top: 6rem;
    text-align: center;
    padding: 4rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer p {
    color: var(--text-dim);
    margin-bottom: 0.5rem;
}

.footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

/* Animations */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.btn-source {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 1rem;
    transition: background 0.3s;
}

.btn-source:hover {
    background: #bb2d3b;
}