:root{--bg: #f3f5f8;--ink: #111827;--muted: #6b7280;--line: #e5e7eb;--surface: #ffffff;--blue: #2563eb;--blue-soft: #eff6ff;--green: #16a34a;--phone-frame: #1c1c1e;--phone-screen: #0b0b0f;--radius: 18px;--font: "DM Sans", system-ui, -apple-system, sans-serif;--display: "DM Sans", system-ui, sans-serif;color-scheme:light}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{margin:0;min-height:100%}body{font-family:var(--font);color:var(--ink);background:var(--bg);overflow-x:hidden}body.rtl{direction:rtl}button,select{font:inherit}.app{max-width:430px;margin:0 auto;padding:14px 16px calc(28px + env(safe-area-inset-bottom));min-height:100dvh}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.05rem;letter-spacing:-.02em}.brand-logo{width:36px;height:36px;object-fit:contain;border-radius:8px;flex-shrink:0;background:#fff}.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--blue);position:relative}.lang-picker{position:relative;z-index:40}.lang-trigger{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:7px 10px 7px 8px;color:var(--ink);font-size:.84rem;font-weight:600;cursor:pointer;box-shadow:0 1px 2px #0f172a0a;transition:border-color .15s ease,box-shadow .15s ease}.lang-trigger:hover,.lang-picker.open .lang-trigger{border-color:#c7d2fe;box-shadow:0 4px 14px #2563eb1a}.lang-flag{font-size:1rem;line-height:1}.lang-name{max-width:92px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lang-chevron{display:grid;place-items:center;color:var(--muted);transition:transform .15s ease}.lang-picker.open .lang-chevron{transform:rotate(180deg)}.lang-menu{position:absolute;right:0;top:calc(100% + 8px);margin:0;padding:6px;list-style:none;width:min(220px,72vw);max-height:min(320px,55vh);overflow-y:auto;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 40px #0f172a24;animation:fade .18s ease both;-webkit-overflow-scrolling:touch}body.rtl .lang-menu{right:auto;left:0}.lang-option{width:100%;display:flex;align-items:center;gap:10px;border:none;background:transparent;border-radius:11px;padding:10px;cursor:pointer;color:var(--ink);font-size:.9rem;font-weight:550;text-align:start}.lang-option:hover{background:#f3f4f6}.lang-option.active{background:var(--blue-soft);color:var(--blue)}.lang-option-name{flex:1;min-width:0}.lang-tick{display:grid;place-items:center;color:var(--blue)}.lang-tick svg{width:16px;height:16px}.lang-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:8px 14px;color:var(--ink);font-size:.85rem;font-weight:500}.hero{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:22px 18px 20px;animation:fade .4s ease both}.hero h1{font-family:var(--display);font-size:clamp(1.4rem,5.2vw,1.7rem);line-height:1.2;letter-spacing:-.03em;font-weight:700;margin:0 0 10px;color:var(--ink)}.hero-lead{margin:0 0 20px;color:var(--muted);font-size:.95rem;line-height:1.55}.phone-stage{display:flex;justify-content:center;margin:0 0 20px}.device{width:min(230px,68vw);aspect-ratio:9 / 19.2;background:var(--phone-frame);border-radius:36px;padding:10px;box-shadow:0 1px #ffffff1f inset,0 22px 40px #0f172a38;position:relative}.device:before,.device:after{content:"";position:absolute;background:#2a2a2c;border-radius:2px}.device:before{width:3px;height:28px;left:-2px;top:92px;box-shadow:0 42px #2a2a2c,0 78px #2a2a2c}.device:after{width:3px;height:52px;right:-2px;top:120px}.device-screen{height:100%;background:var(--phone-screen);border-radius:28px;overflow:hidden;display:flex;flex-direction:column;color:#fff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.device-top{flex-shrink:0;padding-top:8px;position:relative}.status-bar{display:flex;justify-content:space-between;align-items:center;padding:0 16px;height:24px;font-size:11px;font-weight:650;letter-spacing:-.01em;position:relative;z-index:1}.status-time{padding-left:2px;min-width:36px}.status-icons{display:flex;align-items:center;gap:4px;color:#fff;min-width:58px;justify-content:flex-end}.status-icons svg{display:block;flex-shrink:0}.island{position:absolute;left:50%;top:9px;transform:translate(-50%);width:72px;height:20px;background:#000;border-radius:12px;box-shadow:inset 0 0 0 1px #ffffff14;z-index:2;pointer-events:none}.wallet-head{padding:6px 14px 0;display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#ffffffb3;margin-bottom:8px}.wallet-body{padding:0 14px;flex:1;min-height:0}.balance-label{font-size:11px;color:#ffffff8c;margin-bottom:4px}.balance{font-size:26px;font-weight:700;letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums}.balance-change{margin-top:4px;font-size:11px;color:#4ade80;font-weight:600}.actions{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:14px 0 12px}.action{display:flex;flex-direction:column;align-items:center;gap:5px;font-size:9px;color:#ffffffa6}.action i{width:34px;height:34px;border-radius:50%;background:#1c1c22;display:grid;place-items:center;font-style:normal;font-size:13px;color:#fff}.action.buy i{background:#22c55e}.assets{border-top:1px solid rgba(255,255,255,.08)}.asset{display:flex;align-items:center;gap:8px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.06);font-size:11px}.asset-ico{width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-size:9px;font-weight:700;color:#fff;flex-shrink:0}.asset-ico.btc{background:#f7931a}.asset-ico.eth{background:#627eea}.asset-ico.usdt{background:#26a17b}.asset-meta{flex:1;min-width:0}.asset-meta strong{display:block;font-size:11px;font-weight:600}.asset-meta span{color:#ffffff73;font-size:9px}.asset-val{text-align:right;font-variant-numeric:tabular-nums}.asset-val strong{display:block;font-size:11px}.asset-val span{color:#ffffff73;font-size:9px}.home-bar{width:34%;height:4px;border-radius:999px;background:#ffffff47;margin:8px auto}.cta-row{display:flex;flex-wrap:nowrap;gap:8px}.btn{border:none;border-radius:10px;padding:9px 12px;font-size:.84rem;font-weight:600;line-height:1.2;white-space:nowrap;cursor:pointer;transition:transform .12s ease,background .12s ease}.btn:active{transform:scale(.98)}.btn-primary{background:var(--blue);color:#fff;flex:1 1 auto;min-width:0}.btn-ghost{background:var(--blue-soft);color:var(--blue);flex:0 1 auto}.btn-full{width:100%;padding:11px 14px}.section-title{font-size:1.1rem;font-weight:700;letter-spacing:-.02em;margin:26px 0 12px}.features{display:grid;gap:10px}.feature{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px;display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:start;animation:fade .4s ease both}.feature-ico{width:42px;height:42px;border-radius:12px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center}.feature-ico svg{width:20px;height:20px}.feature h3{margin:0 0 4px;font-size:.95rem;font-weight:650;letter-spacing:-.01em}.feature p{margin:0;color:var(--muted);font-size:.86rem;line-height:1.45}.screen{animation:fade .35s ease both}.quiz-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:20px 16px}.progress-wrap{margin-bottom:16px}.progress-label{display:flex;justify-content:space-between;font-size:.78rem;color:var(--muted);margin-bottom:8px;font-weight:500}.progress-bar{height:6px;border-radius:999px;background:#e5e7eb;overflow:hidden}.progress-fill{height:100%;border-radius:inherit;background:var(--blue);transition:width .3s ease}.question{font-size:1.15rem;font-weight:700;letter-spacing:-.02em;margin:0 0 14px;line-height:1.3}.options{display:grid;gap:8px;margin-bottom:16px}.option{text-align:start;border:1.5px solid var(--line);background:#fafafa;border-radius:12px;padding:13px 14px;cursor:pointer;font-weight:550;color:var(--ink)}.option.active{border-color:var(--blue);background:var(--blue-soft)}.nav-row{display:flex;gap:8px}.btn-secondary{background:#f3f4f6;color:var(--ink)}.btn-secondary:disabled,.btn-primary:disabled{opacity:.4;cursor:not-allowed}.done{text-align:center;padding:28px 18px;background:var(--surface);border-radius:20px;border:1px solid var(--line)}.done-check{width:56px;height:56px;margin:0 auto 14px;border-radius:50%;background:#dcfce7;color:var(--green);display:grid;place-items:center}.done-check svg{width:28px;height:28px}.done h2{font-size:1.35rem;margin:0 0 8px;letter-spacing:-.02em}.done p{color:var(--muted);margin:0 0 20px;line-height:1.5;font-size:.95rem}@keyframes fade{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}