:root{--bg: #ffffff;--panel: #f7f8fa;--border: #e6e8ee;--text: #14161c;--muted: #5b6472;--accent: #3d5bd9;--accent-btn: #3d5bd9;--danger: #e5484d}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text)}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:12px 24px;background:#ffffffd9;-webkit-backdrop-filter:saturate(180%) blur(10px);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--border)}.topbar-right{display:flex;align-items:center;gap:12px}.user-email{font-size:13px;font-weight:500}.app-nav{display:flex;align-items:center;gap:18px}.app-nav a{color:var(--muted);text-decoration:none;font-size:14px}.app-nav a:hover{color:var(--text)}.app-nav 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(prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none}.ba-panel img,.landing .card{transition:none}}.landing .btn{background:var(--l-accent)}.landing .btn.secondary{background:var(--l-bg);color:var(--l-text);border:1px solid var(--l-border)}.landing .muted{color:var(--l-muted)}.landing .brand{color:var(--l-text)}.landing .theme-grid{gap:20px;padding:0}.faq,.contact{max-width:1120px;margin:0 auto;padding:32px 28px}.faq h2,.contact h2{font-size:28px;margin-bottom:16px}.faq-list{display:grid;gap:12px}.faq-item{background:var(--l-bg-soft);border:1px solid var(--l-border);border-radius:var(--l-radius);padding:16px 20px}.faq-item summary{font-weight:600;cursor:pointer}.faq-item p{margin:10px 0 0}.contact{text-align:center;border-top:1px solid var(--l-border)}.contact .btn{display:inline-block;margin-top:8px}