:root{--bg: #ffffff;--surface: #f7f8fa;--surface-2: #eef0f4;--border: #e3e6ec;--text: #0f172a;--text-muted: #64748b;--accent: #2563eb;--accent-hover: #1d4ed8;--accent-soft: #eff4ff;--success: #16a34a;--warning: #f59e0b;--danger: #dc2626;--radius: 14px;--radius-sm: 10px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);--shadow-md: 0 4px 14px rgba(15, 23, 42, .08)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,system-ui,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}button{font-family:inherit;cursor:pointer}input,textarea,select{font-family:inherit;font-size:16px}a{color:var(--accent);text-decoration:none}.app-shell{min-height:100vh;padding-bottom:80px;background:var(--bg)}.app-shell__main{padding:16px;padding-top:max(16px,env(safe-area-inset-top));max-width:640px;margin:0 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ease}.btn:active{transform:scale(.98)}.btn--primary{background:var(--accent);color:#fff}.btn--primary:hover{background:var(--accent-hover)}.btn--ghost{background:var(--surface-2);color:var(--text)}.btn--block{width:100%}.tile-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.tile{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 16px;text-align:left;color:var(--text);display:flex;flex-direction:column;gap:8px;transition:border-color .15s ease,transform .05s ease}.tile:hover{border-color:var(--accent)}.tile:active{transform:scale(.98)}.tile__icon{width:36px;height:36px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}.tile__title{font-weight:600;font-size:15px}.tile__subtitle{font-size:12px;color:var(--text-muted)}.h1{font-size:24px;font-weight:700;margin:0 0 4px;letter-spacing:-.01em}.h2{font-size:18px;font-weight:600;margin:0 0 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24px}.landing__section-title{font-size:32px;font-weight:800;letter-spacing:-.015em;margin:0 0 28px;text-align:center}.landing__steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.step-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;position:relative}.step-card__num{position:absolute;top:16px;right:16px;font-size:36px;font-weight:800;color:var(--accent-soft);line-height:1}.step-card__icon{width:40px;height:40px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:14px}.step-card__title{font-weight:700;font-size:18px;margin-bottom:6px}.step-card__body{color:var(--text-muted);font-size:15px;line-height:1.5}.landing__features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.landing__faq{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:10px}.faq{background:#fff;border:1px solid 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spin{to{transform:rotate(360deg)}}.row{display:flex;align-items:center;gap:12px;padding:12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:8px}.row__title{font-weight:600;font-size:15px}.row__meta{font-size:12px;color:var(--text-muted)}