:root {
    --bg-color: #0a0a0a;
    --text-color: #ffffff;
    --primary-color: #00ff88;
    --secondary-color: #00ccff;
    --accent-color: #ff0055;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
    cursor: default;
}

/* Mouse follow background effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.15) 0%, rgba(0, 204, 255, 0.05) 30%, transparent 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: -1;
    transition: transform 0.1s ease-out; /* Smooth follow */
    left: var(--mouse-x, 50%);
    top: var(--mouse-y, 50%);
}

h1, h2, h3 {
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Glassmorphism Card */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #000;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

input, select, textarea {
    width: 100%;
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    font-family: inherit;
    margin-bottom: 1rem;
    transition: border-color 0.3s ease;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}