/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --bg: #030712; --bg-2: #0a1628; --bg-card: #111827;
    --text: #f1f5f9; --text-2: #94a3b8; --text-3: #64748b;
    --blue: #3b82f6; --purple: #8b5cf6; --cyan: #06b6d4;
    --green: #10b981; --amber: #f59e0b;
    --border: rgba(148,163,184,0.1); --glass: rgba(17,24,39,0.8);
    --radius: 16px; --radius-sm: 10px;
}
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
a { color: inherit; text-decoration: none; }

/* ── Navbar ── */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 16px 0; transition: all 0.3s; }
.navbar.scrolled { background: rgba(3,7,18,0.9); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); padding: 10px 0; }
.nav-content { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.4rem; font-weight: 700; }
.logo-icon { width: 36px; height: 36px; }
.logo-icon svg { width: 100%; height: 100%; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 0.9rem; color: var(--text-2); transition: color 0.2s; font-weight: 500; }
.nav-links a:hover { color: var(--text); }
.mobile-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.mobile-toggle span { display: block; width: 24px; height: 2px; background: var(--text); transition: 0.3s; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 24px; border-radius: 10px; font-weight: 600; font-size: 0.9rem; transition: all 0.3s; border: none; cursor: pointer; font-family: inherit; }
.btn-primary { background: linear-gradient(135deg, var(--blue), var(--purple)); color: white; box-shadow: 0 4px 20px rgba(59,130,246,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(59,130,246,0.4); }
.btn-ghost { background: rgba(255,255,255,0.05); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: rgba(255,255,255,0.1); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); width: 100%; justify-content: center; padding: 12px; }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.btn-nav { background: rgba(59,130,246,0.15); color: var(--blue); padding: 8px 20px; }
.btn-nav:hover { background: rgba(59,130,246,0.25); }
.btn-lg { padding: 14px 32px; font-size: 1rem; border-radius: 12px; }
.btn-full { width: 100%; justify-content: center; }

/* ── Hero ── */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding-top: 80px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.orb { position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.3; animation: float 8s ease-in-out infinite; }
.orb-1 { width: 500px; height: 500px; background: var(--blue); top: -10%; right: -10%; }
.orb-2 { width: 400px; height: 400px; background: var(--purple); bottom: -5%; left: -5%; animation-delay: -3s; }
.orb-3 { width: 300px; height: 300px; background: var(--cyan); top: 40%; left: 30%; animation-delay: -5s; opacity: 0.15; }
.grid-pattern { position: absolute; inset: 0; background-image: linear-gradient(rgba(148,163,184,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(148,163,184,0.03) 1px, transparent 1px); background-size: 60px 60px; }
@keyframes float { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(30px, -30px); } }

.hero-content { position: relative; z-index: 1; text-align: center; max-width: 800px; margin: 0 auto; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2); padding: 8px 20px; border-radius: 50px; font-size: 0.85rem; color: var(--blue); font-weight: 500; margin-bottom: 24px; animation: fadeUp 0.8s ease; }
.hero h1 { font-size: clamp(2.5rem, 6vw, 4.2rem); font-weight: 800; line-height: 1.1; margin-bottom: 20px; letter-spacing: -0.02em; animation: fadeUp 0.8s ease 0.1s both; }
.gradient-text { background: linear-gradient(135deg, var(--blue), var(--purple), var(--cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 1.15rem; color: var(--text-2); max-width: 600px; margin: 0 auto 32px; animation: fadeUp 0.8s ease 0.2s both; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; animation: fadeUp 0.8s ease 0.3s both; }
.hero-stats { display: flex; align-items: center; justify-content: center; gap: 24px; animation: fadeUp 0.8s ease 0.4s both; }
.stat { text-align: center; }
.stat-value { display: block; font-size: 1.1rem; font-weight: 700; color: var(--text); }
.stat-label { font-size: 0.8rem; color: var(--text-3); }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* ── Section Common ── */
.section-header { text-align: center; max-width: 600px; margin: 0 auto 60px; }
.section-badge { display: inline-block; background: rgba(59,130,246,0.1); color: var(--blue); padding: 6px 16px; border-radius: 50px; font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px; }
.section-header h2 { font-size: 2.5rem; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.02em; }
.section-header p { color: var(--text-2); font-size: 1.05rem; }

/* ── Features ── */
.features { padding: 120px 0; position: relative; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; transition: all 0.4s; opacity: 0; transform: translateY(20px); }
.feature-card.visible { opacity: 1; transform: translateY(0); }
.feature-card:hover { transform: translateY(-4px); border-color: rgba(59,130,246,0.3); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
.feature-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(59,130,246,0.1); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.feature-icon svg { width: 24px; height: 24px; stroke: var(--accent, var(--blue)); }
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.feature-card p { color: var(--text-2); font-size: 0.9rem; line-height: 1.6; }

/* ── Security ── */
.security { padding: 120px 0; background: var(--bg-2); }
.security-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.security-text h2 { font-size: 2.5rem; font-weight: 800; margin-bottom: 16px; }
.security-text > p { color: var(--text-2); margin-bottom: 32px; }
.security-list { display: flex; flex-direction: column; gap: 16px; }
.security-item { display: flex; gap: 14px; align-items: flex-start; opacity: 0; transform: translateX(-20px); }
.security-item.visible { opacity: 1; transform: translateX(0); }
.check { width: 28px; height: 28px; background: rgba(16,185,129,0.15); color: var(--green); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 700; flex-shrink: 0; font-size: 0.85rem; }
.security-item div:last-child { font-size: 0.9rem; color: var(--text-2); }
.security-item strong { color: var(--text); }

.encryption-demo { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; position: relative; overflow: hidden; }
.msg-row { display: flex; margin-bottom: 12px; }
.msg-bubble { padding: 12px 18px; border-radius: 16px; font-size: 0.9rem; max-width: 80%; }
.msg-bubble.sent { background: linear-gradient(135deg, var(--blue), var(--purple)); margin-left: auto; border-bottom-right-radius: 4px; }
.msg-bubble.received { background: rgba(255,255,255,0.08); border-bottom-left-radius: 4px; }
.encrypt-overlay { position: absolute; inset: 0; background: rgba(3,7,18,0.85); backdrop-filter: blur(8px); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; }
.lock-icon { font-size: 2.5rem; animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.1); } }
.cipher-text { font-family: 'Courier New', monospace; font-size: 0.8rem; color: var(--green); text-align: center; line-height: 1.8; }
.encrypt-label { font-size: 0.75rem; color: var(--text-3); font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; }

/* ── Pricing ── */
.pricing { padding: 120px 0; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.price-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; text-align: center; transition: all 0.4s; position: relative; opacity: 0; transform: translateY(20px); }
.price-card.visible { opacity: 1; transform: translateY(0); }
.price-card.popular { border-color: var(--blue); transform: scale(1.05); box-shadow: 0 20px 60px rgba(59,130,246,0.15); }
.price-card.popular.visible { transform: scale(1.05); }
.popular-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, var(--blue), var(--purple)); color: white; padding: 4px 20px; border-radius: 50px; font-size: 0.75rem; font-weight: 700; }
.price-header h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 4px; }
.price-header p { color: var(--text-3); font-size: 0.85rem; margin-bottom: 20px; }
.price-amount { margin-bottom: 24px; }
.currency { font-size: 1.5rem; font-weight: 600; vertical-align: top; color: var(--text-2); }
.amount { font-size: 3.5rem; font-weight: 800; letter-spacing: -0.03em; }
.period { color: var(--text-3); font-size: 0.9rem; }
.price-features { list-style: none; text-align: left; margin-bottom: 28px; }
.price-features li { padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 0.9rem; color: var(--text-2); }
.price-features li::before { content: '✓ '; color: var(--green); font-weight: 700; }

/* ── CTA ── */
.cta { padding: 120px 0; background: var(--bg-2); }
.cta-content { max-width: 640px; margin: 0 auto; text-align: center; }
.cta h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; }
.cta p { color: var(--text-2); margin-bottom: 32px; }
.cta-form { display: flex; flex-direction: column; gap: 12px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.cta-form input, .cta-form select, .cta-form textarea {
    width: 100%; padding: 14px 18px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text); font-family: inherit; font-size: 0.9rem; transition: border 0.2s;
}
.cta-form input:focus, .cta-form select:focus, .cta-form textarea:focus { outline: none; border-color: var(--blue); }
.cta-form select { appearance: none; cursor: pointer; }
.cta-form textarea { resize: vertical; min-height: 80px; }

/* ── Footer ── */
.footer { padding: 60px 0 24px; border-top: 1px solid var(--border); }
.footer-content { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { color: var(--text-3); font-size: 0.9rem; margin-top: 12px; max-width: 280px; }
.footer-links h4 { font-size: 0.85rem; font-weight: 700; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-links a { display: block; color: var(--text-3); font-size: 0.9rem; padding: 4px 0; transition: color 0.2s; }
.footer-links a:hover { color: var(--text); }
.footer-bottom { text-align: center; padding-top: 24px; border-top: 1px solid var(--border); }
.footer-bottom p { color: var(--text-3); font-size: 0.8rem; }

/* ── Responsive ── */
@media (max-width: 768px) {
    .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: rgba(3,7,18,0.95); backdrop-filter: blur(20px); flex-direction: column; padding: 24px; border-bottom: 1px solid var(--border); }
    .nav-links.active { display: flex; }
    .mobile-toggle { display: flex; }
    .features-grid, .pricing-grid { grid-template-columns: 1fr; }
    .security-content { grid-template-columns: 1fr; }
    .price-card.popular { transform: none; }
    .price-card.popular.visible { transform: none; }
    .hero-stats { flex-direction: column; gap: 12px; }
    .stat-divider { width: 40px; height: 1px; }
    .form-row { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr 1fr; }
    .hero h1 { font-size: 2.2rem; }
}