:root {
    --accent: #22d3ee;
    --accent-dim: rgba(34, 211, 238, 0.15);
    --bg-deep: #020617;
}

body {
    font-family: 'Geist', sans-serif;
    background-color: var(--bg-deep);
    color: #f8fafc;
    overflow-x: hidden;
}

.mono {
    font-family: 'Geist Mono', monospace;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.5; box-shadow: 0 0 20px var(--accent-dim); }
    50% { opacity: 1; box-shadow: 0 0 40px var(--accent); }
}

@keyframes grid-move {
    0% { background-position: 0 0; }
    100% { background-position: 50px 50px; }
}

.animate-float { animation: float 6s ease-in-out infinite; }

.bg-grid {
    background-image: linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: grid-move 20s linear infinite;
}

.hero-gradient { background: radial-gradient(circle at 50% 50%, rgba(34, 211, 238, 0.1) 0%, transparent 70%); }

.glass {
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass:hover {
    border-color: var(--accent);
    background: rgba(30, 41, 59, 0.7);
    transform: translateY(-4px);
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.active-tab {
    position: relative;
    color: var(--accent);
}

.active-tab::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

/* Form Controls */
.tech-input {
    width: 100%;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    outline: none;
    transition: all 0.3s;
    font-family: 'Geist Mono', monospace;
}
.tech-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(34, 211, 238, 0.2);
}