@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&family=Outfit:wght@400;700&display=swap');

:root {
    --primary: #6366f1;
    --secondary: #a855f7;
    --accent: #ec4899;
    --bg: #0f172a;
    --glass: rgba(255, 255, 255, 0.05);
    --border: rgba(255, 255, 255, 0.12);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg);
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(168, 85, 247, 0.15) 0px, transparent 50%);
    color: white;
    min-height: 100vh;
    padding: 2rem;
}

h1, h2, h3 {
    font-family: 'Outfit', sans-serif;
}

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

header {
    margin-bottom: 3rem;
    text-align: center;
}

header h1 {
    font-size: 3rem;
    background: linear-gradient(to right, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

header p {
    color: #94a3b8;
    font-size: 1.1rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tool-card {
    background: var(--glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.05), transparent);
    transform: translateX(-100%);
    transition: 0.6s;
}

.tool-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.tool-card:hover::before {
    transform: translateX(100%);
}

.tool-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

.tool-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.tool-card p {
    color: #94a3b8;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge.active { background: rgba(34, 197, 94, 0.2); color: #4ade80; border: 1px solid rgba(34, 197, 94, 0.3); }
.badge.upcoming { background: rgba(245, 158, 11, 0.2); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }

.diagrams-section {
    margin-top: 4rem;
}

.nav-link {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    transition: 0.3s;
}

.nav-link:hover {
    background: var(--secondary);
    box-shadow: 0 5px 15px rgba(168, 85, 247, 0.4);
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.tool-card {
    animation: fadeInUp 0.6s ease-out backwards;
}

.tool-card:nth-child(2) { animation-delay: 0.2s; }
.tool-card:nth-child(3) { animation-delay: 0.4s; }