:root{--bg:#090909;--panel:#111;--panel-2:#171717;--text:#f7f7f4;--muted:#929292;--line:#2a2a2a;--blue:#2e70d1;--blue-soft:#8db3eb;--radius:18px}*{box-sizing:border-box}html{background:#050505}body{margin:0;background:#050505;color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.app-shell{max-width:520px;min-height:100vh;margin:auto;background:var(--bg);padding-bottom:88px}.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);background:#090909;position:sticky;top:0;z-index:5}.brand-lockup{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:800;letter-spacing:.05em}.brand-logo{width:46px;height:38px;object-fit:contain;border-radius:8px}.icon-button,.cart-button{border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:12px;padding:9px 12px;font:600 11px inherit}.cart-button 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