@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&display=swap');

:root {
    --bg-dark: #0f172a;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --primary: #38bdf8;
    --secondary: #818cf8;
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow-x: hidden;
}

/* Glass Header */
.glass-header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.logo {
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: -0.5px;
}

nav a {
    color: var(--text-dim);
    text-decoration: none;
    margin-left: 1.5rem;
    font-size: 0.9rem;
    transition: color 0.2s;
}

nav a:hover {
    color: var(--primary);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 6rem 1rem 2rem;
    background: radial-gradient(circle at 50% 30%, #1e293b 0%, #0f172a 70%);
}

.badge {
    background: rgba(56, 189, 248, 0.1);
    color: var(--primary);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid rgba(56, 189, 248, 0.2);
}

h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sub-p {
    color: var(--text-dim);
    margin-bottom: 2.5rem;
}

/* CTA Button */
.cta-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    border: none;
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 10px 30px -10px var(--secondary);
    transition: transform 0.2s;
}

.cta-btn:active {
    transform: scale(0.96);
}

.cta-btn.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(56, 189, 248, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(56, 189, 248, 0); }
    100% { box-shadow: 0 0 0 0 rgba(56, 189, 248, 0); }
}

.tiny-text {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-top: 0.8rem;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 4rem;
    max-width: 800px;
}

.feature-item {
    background: rgba(255,255,255,0.03);
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.05);
}

.feature-item .icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.5rem;
}

/* Test Overlay */
.test-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #000;
    z-index: 999;
    cursor: none;
}

#test-instruction {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
    animation: fadeOut 3s forwards 1.5s;
}

@keyframes fadeOut { to { opacity: 0; } }

.hand-icon {
    font-size: 3rem;
    animation: swipeHint 2s infinite;
}

@keyframes swipeHint {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(20px); }
}

/* SEO Content */
.seo-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
    color: #cbd5e1;
    line-height: 1.7;
}

.seo-content h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #fff;
}

.seo-content h3 {
    margin-top: 2.5rem;
    color: var(--primary);
}

.comparison-table {
    display: flex;
    gap: 2rem;
    background: rgba(255,255,255,0.03);
    padding: 2rem;
    border-radius: 12px;
    margin: 1.5rem 0;
}

.steps-list li {
    margin-bottom: 1rem;
}

/* Footer */
footer {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 3rem 1rem;
    text-align: center;
    color: var(--text-dim);
}

.footer-links {
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--text-dim);
    margin: 0 10px;
    text-decoration: none;
}

/* Modal */
.modal {
    background: #1e293b;
    color: #fff;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 2rem;
    max-width: 400px;
}

.modal::backdrop {
    background: rgba(0,0,0,0.8);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

.danger-btn {
    background: #ef4444;
    color: white;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
}

.secondary-btn {
    background: transparent;
    color: #ccc;
    border: 1px solid #ccc;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
}

.hidden { display: none !important; }

/* Responsive */
@media (max-width: 600px) {
    h1 { font-size: 2.5rem; }
    .feature-grid { grid-template-columns: 1fr; }
    .comparison-table { flex-direction: column; gap: 1rem; }
}