@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400&display=swap');

:root {
    --bg: #060810;
    --surface: #0b0e18;
    --surface-2: #101421;
    --surface-3: #161b2a;
    --border: rgba(255,255,255,0.07);
    --border-2: rgba(255,255,255,0.04);
    --primary: #6366f1;
    --primary-hover: #4f51d8;
    --primary-dim: rgba(99,102,241,0.1);
    --primary-glow: rgba(99,102,241,0.25);
    --violet: #8b5cf6;
    --violet-dim: rgba(139,92,246,0.1);
    --cyan: #06b6d4;
    --cyan-dim: rgba(6,182,212,0.1);
    --green: #22c55e;
    --green-dim: rgba(34,197,94,0.1);
    --warning: #f59e0b;
    --warning-dim: rgba(245,158,11,0.1);
    --danger: #ef4444;
    --danger-dim: rgba(239,68,68,0.1);
    --text: #f1f5f9;
    --text-2: #8892a4;
    --text-3: #4a5568;
    --nav-h: 64px;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.5);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; -webkit-font-smoothing: antialiased; }
html { background: var(--bg); scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: 'Inter', sans-serif; line-height: 1.6; min-height: 100vh; }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(99,102,241,0.2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(99,102,241,0.4); }

/* ───── TOP NAV ───── */
.top-nav {
    position: fixed; top: 0; left: 0; right: 0;
    height: var(--nav-h);
    background: rgba(6,8,16,0.88);
    backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-2);
    display: flex; align-items: center;
    padding: 0 40px; z-index: 1000; gap: 0;
}
.nav-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; margin-right: auto; }
.nav-logo { width: 30px; height: 30px; border-radius: 8px; object-fit: cover; }
.nav-brand-name { font-size: 1rem; font-weight: 700; color: var(--text); letter-spacing: -0.02em; }
.nav-brand-tag { font-size: 0.65rem; font-weight: 600; color: var(--primary); background: var(--primary-dim); padding: 1px 6px; border-radius: 4px; letter-spacing: 0.04em; text-transform: uppercase; margin-left: 2px; }
.nav-links { display: flex; align-items: center; gap: 2px; margin: 0 20px; }
.nav-link { padding: 6px 13px; border-radius: 7px; font-size: 0.855rem; font-weight: 500; color: var(--text-2); text-decoration: none; transition: all 0.15s ease; }
.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-link.active { color: #a5b4fc; background: var(--primary-dim); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.nav-cta { padding: 8px 18px; background: var(--primary); color: #fff; border-radius: 8px; font-size: 0.855rem; font-weight: 600; text-decoration: none; transition: all 0.15s ease; white-space: nowrap; border: none; cursor: pointer; }
.nav-cta:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 6px 20px var(--primary-glow); }
.nav-mobile-btn { display: none; background: none; border: none; color: var(--text-2); cursor: pointer; padding: 6px; border-radius: 6px; }
.mobile-menu { display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; background: rgba(6,8,16,0.97); backdrop-filter: blur(24px); border-bottom: 1px solid var(--border); padding: 16px; z-index: 999; flex-direction: column; gap: 4px; }
.mobile-menu.open { display: flex; }
.mobile-menu .nav-link { display: block; padding: 10px 14px; }
.mobile-menu .nav-cta { margin-top: 8px; display: block; text-align: center; padding: 11px; }
@media (max-width: 768px) {
    .top-nav { padding: 0 20px; }
    .nav-links { display: none; }
    .nav-right .nav-cta { display: none; }
    .nav-mobile-btn { display: flex; }
}

/* ───── PAGE WRAP ───── */
.page-wrap { padding-top: calc(var(--nav-h) + 40px); max-width: 1100px; margin: 0 auto; padding-left: 28px; padding-right: 28px; padding-bottom: 100px; }
.page-wrap-wide { max-width: 1300px; }
.page-wrap-narrow { max-width: 820px; }

/* ───── HERO ───── */
.page-hero { text-align: center; padding: 52px 0 56px; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 14px; background: var(--primary-dim); border: 1px solid rgba(99,102,241,0.2); border-radius: 100px; font-size: 0.72rem; font-weight: 700; color: #a5b4fc; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 22px; }
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: #6366f1; animation: pulse-dot 2s ease infinite; }
@keyframes pulse-dot { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(0.7); } }
.page-hero h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.13; margin-bottom: 18px; background: linear-gradient(135deg, #f1f5f9 30%, #94a3b8 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.page-hero p { font-size: 1.05rem; color: var(--text-2); max-width: 520px; margin: 0 auto; line-height: 1.75; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 32px; flex-wrap: wrap; }

/* ───── SECTION ───── */
.section-label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--primary); margin-bottom: 8px; }
.section-title { font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em; color: var(--text); margin-bottom: 6px; }
.section-sub { color: var(--text-2); font-size: 0.925rem; }

/* ───── CARDS ───── */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; margin-bottom: 14px; transition: border-color 0.2s ease; }
.card:hover { border-color: rgba(99,102,241,0.18); }
.card h2 { font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 12px; letter-spacing: -0.02em; }
.card h3 { font-size: 1rem; font-weight: 600; color: var(--text); margin-bottom: 10px; letter-spacing: -0.01em; }
.card p { color: var(--text-2); line-height: 1.75; font-size: 0.925rem; }
.card ul { list-style: none; padding: 0; margin: 12px 0 0; }
.card ul li { color: var(--text-2); font-size: 0.925rem; line-height: 1.75; padding: 4px 0 4px 18px; position: relative; }
.card ul li::before { content: ''; position: absolute; left: 0; top: 13px; width: 5px; height: 5px; border-radius: 50%; background: var(--primary); opacity: 0.5; }

/* ───── CARD HEAD ───── */
.card-head { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.ch-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.ch-icon svg { width: 18px; height: 18px; }
.ch-icon.indigo { background: var(--primary-dim); color: #818cf8; }
.ch-icon.violet { background: var(--violet-dim); color: #a78bfa; }
.ch-icon.cyan { background: var(--cyan-dim); color: #22d3ee; }
.ch-icon.green { background: var(--green-dim); color: #4ade80; }
.ch-icon.orange { background: var(--warning-dim); color: #fbbf24; }
.ch-icon.red { background: var(--danger-dim); color: #f87171; }
.ch-text h3 { font-size: 1rem; font-weight: 600; color: var(--text); margin-bottom: 2px; }
.ch-text p { font-size: 0.825rem; color: var(--text-2); margin: 0; }

/* ───── CODE ───── */
code { background: rgba(99,102,241,0.08); border: 1px solid rgba(99,102,241,0.14); color: #a5b4fc; padding: 2px 7px; border-radius: 5px; font-size: 0.855em; font-family: 'Fira Code', 'Cascadia Mono', 'Consolas', monospace; }
pre code { background: none; border: none; padding: 0; font-size: 0.9rem; color: #c7d2fe; }
pre { background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 18px 20px; overflow-x: auto; margin: 12px 0; }

/* ───── BUTTONS ───── */
.btn { display: inline-flex; align-items: center; gap: 7px; padding: 9px 20px; border-radius: 9px; font-size: 0.875rem; font-weight: 600; cursor: pointer; border: none; transition: all 0.15s ease; text-decoration: none; font-family: 'Inter', sans-serif; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 8px 24px var(--primary-glow); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: rgba(99,102,241,0.3); background: var(--primary-dim); color: #a5b4fc; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; border-radius: 7px; }
.btn-lg { padding: 12px 28px; font-size: 0.925rem; border-radius: 10px; }

/* ───── GRID ───── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

/* ───── DIVIDER ───── */
.divider { height: 1px; background: var(--border); margin: 32px 0; }

/* ───── BADGE ───── */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 100px; font-size: 0.75rem; font-weight: 600; }
.badge-green { background: var(--green-dim); color: #4ade80; }
.badge-red { background: var(--danger-dim); color: #f87171; }
.badge-yellow { background: var(--warning-dim); color: #fbbf24; }
.badge-blue { background: var(--primary-dim); color: #a5b4fc; }
.badge-violet { background: var(--violet-dim); color: #c4b5fd; }

/* ───── STATUS DOT ───── */
.status-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.status-dot.green { background: var(--green); box-shadow: 0 0 6px rgba(34,197,94,0.5); animation: pulse-green 2s ease infinite; }
.status-dot.red { background: var(--danger); box-shadow: 0 0 6px rgba(239,68,68,0.5); }
.status-dot.yellow { background: var(--warning); box-shadow: 0 0 6px rgba(245,158,11,0.5); }
@keyframes pulse-green { 0%,100% { box-shadow: 0 0 6px rgba(34,197,94,0.5); } 50% { box-shadow: 0 0 12px rgba(34,197,94,0.8); } }

/* ───── FOOTER ───── */
.site-footer { text-align: center; padding: 40px 24px 32px; color: var(--text-3); font-size: 0.84rem; border-top: 1px solid var(--border-2); }
.site-footer a { color: var(--text-2); text-decoration: none; transition: color 0.15s; }
.site-footer a:hover { color: var(--text); }
.footer-links { display: flex; align-items: center; justify-content: center; gap: 20px; margin-bottom: 14px; flex-wrap: wrap; }

/* ───── STEP ITEMS ───── */
.step-list { display: flex; flex-direction: column; gap: 18px; }
.step-item { display: flex; gap: 16px; align-items: flex-start; }
.step-num { width: 30px; height: 30px; border-radius: 8px; background: var(--primary-dim); border: 1px solid rgba(99,102,241,0.2); display: flex; align-items: center; justify-content: center; font-size: 0.78rem; font-weight: 700; color: #a5b4fc; flex-shrink: 0; margin-top: 2px; }
.step-content strong { display: block; font-size: 0.925rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.step-content p { font-size: 0.875rem; color: var(--text-2); margin: 0; }

/* ───── FEATURE CARD ───── */
.feature-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; transition: all 0.2s ease; }
.feature-card:hover { border-color: rgba(99,102,241,0.2); background: var(--surface-2); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0,0,0,0.3); }
.feature-icon { width: 44px; height: 44px; border-radius: 11px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.feature-icon svg { width: 20px; height: 20px; }
.feature-title { font-size: 0.95rem; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.feature-desc { font-size: 0.855rem; color: var(--text-2); line-height: 1.65; }

/* ───── TOAST ───── */
.toast { position: fixed; bottom: 28px; right: 28px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 14px 20px; font-size: 0.875rem; color: var(--text); display: flex; align-items: center; gap: 10px; z-index: 9999; box-shadow: 0 8px 32px rgba(0,0,0,0.4); transform: translateY(80px); opacity: 0; transition: all 0.3s ease; max-width: 340px; }
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { border-left: 3px solid var(--green); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--primary); }