:root {
    --primary: #4F46E5;
    --bg: #0F172A;
    --surface: #1E293B;
    --surface-light: #334155;
    --text: #F1F5F9;
    --text-muted: #94A3B8;
    --success: #10B981;
    --radius: 16px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.lang-selector {
    position: fixed;
    top: 12px;
    right: 12px;
    background: var(--surface);
    padding: 6px 14px;
    border-radius: 20px;
    z-index: 100;
    font-size: 0.8rem;
}
.lang-selector a { text-decoration: none; color: var(--text-muted); font-weight: 500; }
.lang-selector a.active { color: var(--primary); font-weight: 700; }

.landing-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Hero */
.hero {
    text-align: center;
    padding: 60px 20px 40px;
}
.hero-badge {
    display: inline-block;
    background: rgba(79, 70, 229, 0.15);
    color: var(--primary);
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
}
.hero h1 {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #818CF8, #4F46E5, #7C3AED);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-sub {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 500px;
    margin: 0 auto;
}

/* Sections */
.section {
    padding: 40px 0;
}
.section h2 {
    font-size: 1.4rem;
    margin-bottom: 24px;
    text-align: center;
}
.section-dark {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 40px 24px;
    margin: 20px 0;
}

/* Steps Grid */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}
.step-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    position: relative;
}
.step-num {
    position: absolute;
    top: 12px;
    left: 12px;
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.step-icon { font-size: 2rem; margin-bottom: 12px; }
.step-card h3 { font-size: 1rem; margin-bottom: 6px; }
.step-card p { font-size: 0.85rem; color: var(--text-muted); }

/* Data Grid */
.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}
.data-card {
    background: rgba(255,255,255,0.04);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}
.data-icon { font-size: 1.8rem; display: block; margin-bottom: 10px; }
.data-card h3 { font-size: 0.95rem; margin-bottom: 4px; }
.data-card p { font-size: 0.82rem; color: var(--text-muted); }

/* Retention */
.retention-badge {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius);
    padding: 24px;
}
.retention-icon { font-size: 2.5rem; }
.retention-badge h2 { text-align: left; font-size: 1.1rem; margin-bottom: 4px; }
.retention-badge p { color: var(--text-muted); font-size: 0.9rem; }

/* Security */
.security-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.security-item {
    background: var(--surface);
    padding: 14px 16px;
    border-radius: 10px;
    font-size: 0.9rem;
}

/* Footer */
.landing-footer {
    text-align: center;
    padding: 40px 0;
    color: var(--text-muted);
    font-size: 0.8rem;
}

@media (max-width: 600px) {
    .hero h1 { font-size: 1.6rem; }
    .security-list { grid-template-columns: 1fr; }
    .retention-badge { flex-direction: column; text-align: center; }
    .retention-badge h2 { text-align: center; }
}