:root {
    --primary: #4F8EF7;
    --primary-h: #3A7BE0;
    --accent: #6C63FF;
    --bg: #0a0e1a;
    --bg2: #111827;
    --bg3: #1a2236;
    --card: #161d2f;
    --card-b: rgba(79,142,247,.12);
    --text: #f0f2f7;
    --text-m: #94a3b8;
    --text-d: #64748b;
    --green: #10b981;
    --purple: #8b5cf6;
    --orange: #f59e0b;
    --pink: #ec4899;
    --cyan: #06b6d4;
    --radius: 16px;
    --glow: 0 0 60px rgba(79,142,247,.15);
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; background:#0a0e1a; color-scheme:dark; }
body { font-family:'Inter',system-ui,sans-serif; background:var(--bg); color:var(--text); line-height:1.6; overflow-x:hidden; }
.container { max-width:1100px; margin:0 auto; padding:0 24px; }
a { color:var(--primary); text-decoration:none; transition:.2s; }
a:hover { color:var(--primary-h); }
ul { list-style:none; }

/* ─── Navbar ─── */
.navbar { position:fixed; top:0; left:0; right:0; z-index:100; padding:16px 0; transition:.3s; }
.navbar.scrolled { background:rgba(10,14,26,.88); backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px); box-shadow:0 1px 24px rgba(0,0,0,.35); padding:10px 0; border-bottom:1px solid rgba(79,142,247,.06); }
.nav-flex { display:flex; align-items:center; justify-content:space-between; }
.logo { display:inline-flex; align-items:center; gap:8px; font-size:1.4rem; font-weight:800; color:var(--text); letter-spacing:-.5px; }
.logo-s { color:var(--primary); }
.logo-mark { width:32px; height:32px; flex-shrink:0; }
.nav-links { display:flex; align-items:center; gap:28px; }
.nav-links a { color:var(--text-m); font-size:.9rem; font-weight:500; position:relative; }
.nav-links a::after { content:''; position:absolute; bottom:-4px; left:0; width:0; height:2px; background:var(--primary); border-radius:1px; transition:.3s; }
.nav-links a:hover::after, .nav-links a.active::after { width:100%; }
.nav-links a:hover, .nav-links a.active { color:var(--text); }
.btn-sm { display:inline-flex!important; align-items:center; gap:6px; background:var(--primary)!important; color:#fff!important; padding:8px 20px; border-radius:8px; font-weight:600; }
.btn-sm:hover { background:var(--primary-h)!important; transform:translateY(-1px); box-shadow:0 4px 16px rgba(79,142,247,.3); }
.btn-sm.active { background:var(--primary)!important; color:#fff!important; }
.btn-sm::after { display:none!important; }
.btn-sm svg { width:15px; height:15px; flex-shrink:0; }
.menu-btn { display:none; background:none; border:none; cursor:pointer; flex-direction:column; gap:5px; }
.menu-btn span { display:block; width:24px; height:2px; background:var(--text); border-radius:2px; transition:.3s; }

/* ─── Hero ─── */
.hero { position:relative; padding:140px 0 80px; text-align:center; background:radial-gradient(ellipse at 50% 0%,rgba(79,142,247,.12) 0%,transparent 60%); }
.hero::before { content:''; position:absolute; inset:0; background:url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='1' cy='1' r='1' fill='rgba(79,142,247,0.07)'/%3E%3C/svg%3E") repeat; pointer-events:none; }
.hero-decor { position:absolute; inset:0; overflow:hidden; pointer-events:none; }
.hero-decor svg { position:absolute; opacity:.07; }
.hero-decor .decor-circle-1 { top:10%; left:5%; width:300px; height:300px; animation:float 8s ease-in-out infinite; }
.hero-decor .decor-circle-2 { bottom:5%; right:8%; width:220px; height:220px; animation:float 10s ease-in-out infinite reverse; }
.hero-decor .decor-grid { top:15%; right:3%; width:180px; height:180px; opacity:.04; }
.hero-badge { display:inline-flex; align-items:center; gap:8px; background:rgba(79,142,247,.08); border:1px solid rgba(79,142,247,.18); color:var(--primary); padding:8px 20px; border-radius:24px; font-size:.85rem; font-weight:600; margin-bottom:24px; backdrop-filter:blur(8px); }
.hero-badge svg { width:16px; height:16px; flex-shrink:0; }
.hero h1 { font-size:3.4rem; font-weight:800; line-height:1.12; margin-bottom:20px; letter-spacing:-.5px; position:relative; }
.hero h1 span { background:linear-gradient(135deg,var(--primary),var(--accent)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.hero-sub { color:var(--text-m); font-size:1.15rem; max-width:540px; margin:0 auto 36px; }
.hero-btns { display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

/* ─── Buttons ─── */
.btn { display:inline-flex; align-items:center; gap:8px; padding:14px 32px; border-radius:10px; font-weight:600; font-size:.95rem; transition:.25s; cursor:pointer; border:none; position:relative; }
.btn-icon { width:18px; height:18px; flex-shrink:0; }
.btn-primary { background:linear-gradient(135deg,var(--primary),var(--accent)); color:#fff; box-shadow:0 4px 16px rgba(79,142,247,.25); }
.btn-primary:hover { color:#fff; transform:translateY(-2px); box-shadow:0 8px 32px rgba(79,142,247,.4); }
.btn-outline { border:1.5px solid rgba(255,255,255,.12); color:var(--text); background:rgba(255,255,255,.03); backdrop-filter:blur(4px); }
.btn-outline:hover { border-color:var(--primary); color:var(--primary); background:rgba(79,142,247,.06); }
.btn-secondary { background:var(--bg3); color:var(--text); }
.btn-secondary:hover { background:rgba(79,142,247,.15); color:var(--primary); }

/* ─── Section Divider ─── */
.section-divider { display:block; width:100%; line-height:0; }
.section-divider svg { display:block; width:100%; height:auto; }

/* ─── Sections ─── */
.section { padding:80px 0; position:relative; }
.section-alt { background:var(--bg2); }
.section-hdr { text-align:center; margin-bottom:48px; }
.section-hdr h2 { font-size:2rem; font-weight:700; }
.section-tag { display:inline-block; color:var(--primary); font-size:.85rem; font-weight:600; text-transform:uppercase; letter-spacing:1px; margin-bottom:8px; }

/* ─── Cards ─── */
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.grid-2 { display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
.card { background:var(--card); border:1px solid rgba(255,255,255,.06); border-radius:var(--radius); padding:32px 28px; transition:.35s; position:relative; overflow:hidden; }
.card::before { content:''; position:absolute; top:0; left:0; right:0; height:2px; background:linear-gradient(90deg,transparent,var(--primary),transparent); opacity:0; transition:.35s; }
.card:hover { transform:translateY(-6px); border-color:rgba(79,142,247,.15); box-shadow:0 16px 40px rgba(0,0,0,.25), var(--glow); }
.card:hover::before { opacity:1; }
.card-icon { width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center; margin-bottom:18px; background:var(--card-b); color:var(--primary); transition:.3s; }
.card:hover .card-icon { transform:scale(1.08); }
.card-icon svg { width:26px; height:26px; }
.card h3 { font-size:1.1rem; font-weight:700; margin-bottom:8px; }
.card p { color:var(--text-m); font-size:.92rem; line-height:1.6; }
.card-green .card-icon { background:rgba(16,185,129,.12); color:var(--green); }
.card-green:hover::before { background:linear-gradient(90deg,transparent,var(--green),transparent); }
.card-purple .card-icon { background:rgba(139,92,246,.12); color:var(--purple); }
.card-purple:hover::before { background:linear-gradient(90deg,transparent,var(--purple),transparent); }
.card-orange .card-icon { background:rgba(245,158,11,.12); color:var(--orange); }
.card-orange:hover::before { background:linear-gradient(90deg,transparent,var(--orange),transparent); }
.card-pink .card-icon { background:rgba(236,72,153,.12); color:var(--pink); }
.card-pink:hover::before { background:linear-gradient(90deg,transparent,var(--pink),transparent); }
.card-cyan .card-icon { background:rgba(6,182,212,.12); color:var(--cyan); }
.card-cyan:hover::before { background:linear-gradient(90deg,transparent,var(--cyan),transparent); }

/* ─── Steps ─── */
.steps { display:grid; grid-template-columns:repeat(3,1fr); gap:32px; text-align:center; position:relative; }
.steps::before { content:''; position:absolute; top:36px; left:calc(16.66% + 26px); right:calc(16.66% + 26px); height:2px; background:linear-gradient(90deg,var(--primary),var(--accent)); opacity:.2; }
.step { padding:24px; position:relative; }
.step-num { width:56px; height:56px; border-radius:50%; background:linear-gradient(135deg,var(--primary),var(--accent)); color:#fff; font-size:1.3rem; font-weight:800; display:flex; align-items:center; justify-content:center; margin:0 auto 18px; box-shadow:0 4px 20px rgba(79,142,247,.3); position:relative; z-index:1; }
.step-icon { width:28px; height:28px; }
.step h3 { font-size:1.05rem; font-weight:700; margin-bottom:8px; }
.step p { color:var(--text-m); font-size:.9rem; }

/* ─── Security ─── */
.sec-grid { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; }
.sec-visual { display:flex; justify-content:center; }
.shield { width:200px; height:200px; display:flex; align-items:center; justify-content:center; border-radius:50%; background:radial-gradient(circle,rgba(79,142,247,.15),transparent 70%); animation:pulse 3s infinite; position:relative; }
.shield::before { content:''; position:absolute; inset:-20px; border-radius:50%; border:1px solid rgba(79,142,247,.1); animation:pulse-ring 3s infinite .5s; }
.shield::after { content:''; position:absolute; inset:-40px; border-radius:50%; border:1px solid rgba(79,142,247,.05); animation:pulse-ring 3s infinite 1s; }
.shield svg { width:80px; height:80px; color:var(--primary); filter:drop-shadow(0 0 20px rgba(79,142,247,.3)); }
@keyframes pulse { 0%,100% { box-shadow:0 0 0 0 rgba(79,142,247,.2); } 50% { box-shadow:0 0 0 30px rgba(79,142,247,0); } }
@keyframes pulse-ring { 0%,100% { opacity:1; transform:scale(1); } 50% { opacity:0; transform:scale(1.1); } }
.sec-items { display:flex; flex-direction:column; gap:24px; }
.sec-item { display:flex; gap:16px; align-items:flex-start; padding:16px; border-radius:12px; transition:.3s; }
.sec-item:hover { background:rgba(79,142,247,.04); }
.sec-item-icon { width:40px; height:40px; border-radius:10px; background:var(--card-b); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.sec-item-icon svg { width:20px; height:20px; color:var(--primary); }
.sec-item h3 { font-size:1.05rem; font-weight:700; margin-bottom:4px; }
.sec-item p { color:var(--text-m); font-size:.9rem; }

/* ─── Platform Cards ─── */
.plat-card ul { margin-top:12px; }
.plat-card li { color:var(--text-m); font-size:.88rem; padding:4px 0; padding-left:16px; position:relative; }
.plat-card li::before { content:'✓'; position:absolute; left:0; color:var(--green); font-weight:700; }
.plat-card .sub { color:var(--text-d); font-size:.82rem; margin-bottom:4px; }

/* ─── Download ─── */
.dl-row { display:flex; gap:24px; justify-content:center; flex-wrap:wrap; }
.dl-box { background:var(--card); border:1px solid rgba(79,142,247,.15); border-radius:var(--radius); padding:40px 32px; text-align:center; flex:1 1 0; min-width:280px; max-width:520px; position:relative; overflow:hidden; }
.dl-box::before { content:''; position:absolute; top:-50%; left:-50%; width:200%; height:200%; background:radial-gradient(circle at center,rgba(79,142,247,.05) 0%,transparent 50%); pointer-events:none; }
.dl-box h3 { font-size:1.4rem; margin-bottom:8px; position:relative; }
.dl-box p { color:var(--text-m); margin-bottom:24px; position:relative; }
.dl-btns { display:flex; gap:14px; justify-content:center; flex-wrap:wrap; margin-bottom:16px; position:relative; }
.dl-note { color:var(--text-d); font-size:.85rem; position:relative; }
.dl-icon { width:48px; height:48px; color:var(--primary); margin:0 auto 20px; opacity:.7; }

/* ─── Download panel (OS selector) ─── */
.dl-panel { background:var(--card); border:1px solid rgba(79,142,247,.15); border-radius:var(--radius); padding:44px 40px; max-width:600px; margin:0 auto; text-align:center; position:relative; overflow:hidden; }
.dl-panel::before { content:''; position:absolute; top:-50%; left:-50%; width:200%; height:200%; background:radial-gradient(circle at center,rgba(79,142,247,.05) 0%,transparent 50%); pointer-events:none; }
.os-select-wrap { position:relative; margin-bottom:32px; }
.os-label { display:block; font-size:.88rem; font-weight:600; color:var(--text-m); margin-bottom:10px; text-transform:uppercase; letter-spacing:.5px; }
.os-combo-wrap { position:relative; display:inline-block; width:100%; max-width:320px; }
.os-combo { appearance:none; -webkit-appearance:none; width:100%; padding:14px 48px 14px 18px; background:var(--bg2); border:1px solid rgba(79,142,247,.2); border-radius:10px; color:var(--text); font-size:1.05rem; font-weight:600; font-family:inherit; cursor:pointer; transition:.2s; outline:none; }
.os-combo:hover, .os-combo:focus { border-color:var(--primary); box-shadow:0 0 0 3px rgba(79,142,247,.12); }
.os-combo option { background:var(--bg2); color:var(--text); }
.os-combo-arrow { position:absolute; right:16px; top:50%; transform:translateY(-50%); width:18px; height:18px; color:var(--text-d); pointer-events:none; }
.dl-content { position:relative; }
.dl-os-icon { width:56px; height:56px; color:var(--primary); margin:0 auto 18px; opacity:.75; }
.dl-content h3 { font-size:1.35rem; margin-bottom:8px; }
.dl-content p { color:var(--text-m); margin-bottom:20px; }
.dl-detect { color:var(--text-d); font-size:.82rem; margin-top:24px; position:relative; }

/* ─── Android setup guide ─── */
.dl-setup { margin-top:28px; padding-top:24px; border-top:1px solid rgba(255,255,255,.06); text-align:left; }
.dl-setup h4 { font-size:.95rem; font-weight:700; color:var(--text); margin-bottom:10px; }
.dl-setup-desc { font-size:.88rem; color:var(--text-m); margin-bottom:16px; line-height:1.6; }
.dl-setup-steps { display:flex; flex-direction:column; gap:10px; margin-bottom:16px; }
.dl-setup-step { display:flex; align-items:center; gap:12px; background:var(--bg2); border:1px solid rgba(255,255,255,.05); border-radius:10px; padding:12px 16px; font-size:.88rem; color:var(--text); line-height:1.5; }
.dl-setup-num { display:inline-flex; align-items:center; justify-content:center; width:26px; height:26px; border-radius:50%; background:var(--primary); color:#fff; font-size:.78rem; font-weight:700; flex-shrink:0; }
.dl-setup-note { font-size:.82rem; color:var(--text-d); line-height:1.6; padding:10px 14px; background:rgba(79,142,247,.06); border-radius:8px; border-left:3px solid var(--primary); }

/* ─── OS Selector Panel ─── */
.dl-panel { max-width:560px; margin:0 auto; background:var(--card); border:1px solid rgba(79,142,247,.15); border-radius:var(--radius); padding:40px 32px; text-align:center; position:relative; overflow:hidden; }
.dl-panel::before { content:''; position:absolute; top:-50%; left:-50%; width:200%; height:200%; background:radial-gradient(circle at center,rgba(79,142,247,.05) 0%,transparent 50%); pointer-events:none; }
.os-select-wrap { position:relative; margin-bottom:32px; }
.os-label { display:block; font-size:.85rem; color:var(--text-m); margin-bottom:10px; font-weight:500; }
.os-combo-wrap { position:relative; display:inline-block; width:100%; max-width:320px; }
.os-combo { width:100%; appearance:none; -webkit-appearance:none; background:var(--bg3); color:var(--text); border:1.5px solid rgba(255,255,255,.1); border-radius:10px; padding:14px 44px 14px 18px; font-size:1rem; font-weight:600; font-family:inherit; cursor:pointer; transition:.25s; outline:none; }
.os-combo:hover { border-color:rgba(79,142,247,.4); }
.os-combo:focus { border-color:var(--primary); box-shadow:0 0 0 3px rgba(79,142,247,.15); }
.os-combo option { background:var(--bg2); color:var(--text); padding:8px; }
.os-combo-arrow { position:absolute; right:14px; top:50%; transform:translateY(-50%); width:18px; height:18px; color:var(--text-d); pointer-events:none; transition:.2s; }
.dl-content { position:relative; animation:dlFadeIn .3s ease; }
.dl-content h3 { font-size:1.4rem; margin-bottom:8px; }
.dl-content p { color:var(--text-m); margin-bottom:24px; }
.dl-os-icon { width:48px; height:48px; color:var(--primary); margin:0 auto 20px; opacity:.7; }
.dl-detect { color:var(--text-d); font-size:.82rem; margin-top:20px; position:relative; }
@keyframes dlFadeIn { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:none; } }

/* ─── CTA Section ─── */
.cta-section { position:relative; overflow:hidden; }
.cta-section::before { content:''; position:absolute; top:50%; left:50%; width:400px; height:400px; background:radial-gradient(circle,rgba(79,142,247,.08),transparent 70%); transform:translate(-50%,-50%); pointer-events:none; }

/* ─── Footer ─── */
.footer { border-top:1px solid rgba(255,255,255,.06); padding:60px 0 0; margin-top:20px; position:relative; }
.footer::before { content:''; position:absolute; top:0; left:50%; width:300px; height:1px; background:linear-gradient(90deg,transparent,var(--primary),transparent); transform:translateX(-50%); opacity:.4; }
.footer-top { display:grid; grid-template-columns:1.5fr 1fr 1fr 1.5fr; gap:32px; padding-bottom:40px; }
.footer-brand .logo { margin-bottom:12px; display:inline-flex; }
.footer-desc { color:var(--text-d); font-size:.88rem; line-height:1.6; margin-top:8px; }
.footer-col { display:flex; flex-direction:column; gap:8px; }
.footer-col h4 { font-size:.9rem; font-weight:700; margin-bottom:4px; color:var(--text); }
.footer-col a { color:var(--text-d); font-size:.85rem; transition:.2s; }
.footer-col a:hover { color:var(--primary); }
.footer-col p { color:var(--text-d); font-size:.82rem; line-height:1.5; }
.footer-contact { display:flex; flex-direction:column; gap:10px; }
.footer-contact-item { display:flex; align-items:center; gap:8px; color:var(--text-d); font-size:.82rem; line-height:1.5; }
.footer-contact-item svg { width:14px; height:14px; flex-shrink:0; color:var(--primary); opacity:.7; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.06); padding:20px 0; text-align:center; }
.copyright { color:var(--text-d); font-size:.82rem; }

/* ─── FAQ ─── */
.faq-list { max-width:760px; margin:0 auto; display:flex; flex-direction:column; gap:12px; }
.faq-item { background:var(--card); border:1px solid rgba(255,255,255,.06); border-radius:var(--radius); overflow:hidden; transition:.3s; }
.faq-item:hover { border-color:rgba(79,142,247,.12); }
.faq-item.open { border-color:rgba(79,142,247,.2); box-shadow:0 4px 20px rgba(0,0,0,.15); }
.faq-q { display:flex; align-items:center; justify-content:space-between; padding:20px 24px; cursor:pointer; font-weight:600; font-size:.95rem; color:var(--text); background:none; border:none; width:100%; text-align:left; }
.faq-q:hover { color:var(--primary); }
.faq-q .faq-icon { width:24px; height:24px; transition:.3s; color:var(--text-d); flex-shrink:0; margin-left:16px; }
.faq-q .faq-icon svg { width:24px; height:24px; }
.faq-item.open .faq-q .faq-icon { transform:rotate(45deg); color:var(--primary); }
.faq-a { padding:0 24px; max-height:0; overflow:hidden; transition:.35s ease; }
.faq-item.open .faq-a { padding:0 24px 20px; max-height:300px; }
.faq-a p { color:var(--text-m); font-size:.9rem; line-height:1.7; }

/* ─── Animations ─── */
.fade-in { opacity:0; transform:translateY(24px); transition:.7s cubic-bezier(.22,1,.36,1); }
.fade-in.visible { opacity:1; transform:none; }
@keyframes float { 0%,100% { transform:translateY(0) rotate(0deg); } 50% { transform:translateY(-20px) rotate(3deg); } }

/* ─── Responsive ─── */
@media(max-width:900px) {
    .grid-3 { grid-template-columns:1fr 1fr; }
    .steps { grid-template-columns:1fr; gap:16px; }
    .steps::before { display:none; }
    .sec-grid { grid-template-columns:1fr; text-align:center; }
    .sec-item { justify-content:center; }
    .hero h1 { font-size:2.2rem; }
    .hero-decor { display:none; }
    .footer-top { grid-template-columns:1fr 1fr; }
}
@media(max-width:768px) {
    .nav-links { display:none; position:absolute; top:70px; left:0; right:0; background:var(--bg2); flex-direction:column; padding:24px; gap:16px; border-bottom:1px solid rgba(255,255,255,.06); }
    .nav-links.open { display:flex; }
    .nav-links a::after { display:none; }
    .menu-btn { display:flex; }
    .grid-3, .grid-2 { grid-template-columns:1fr; }
    .hero h1 { font-size:1.8rem; }
    .dl-box { padding:32px 20px; }
    .dl-panel { padding:32px 20px; }
    .footer-top { grid-template-columns:1fr; }
    .section-divider { display:none; }
}