:root{--bg: #ffffff;--bg-soft: #f7f9fc;--text: #1e2430;--text-muted: #5b6472;--primary: #2563eb;--primary-soft: #eaf1ff;--border: #e2e6ec;--success: #1a9c5c;--danger: #d1453b;--radius: 12px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,sans-serif}a{color:var(--primary)}button{font-family:inherit;cursor:pointer}.card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.btn-primary{background:var(--primary);color:#fff;border:none;border-radius:var(--radius);padding:12px 20px;font-size:15px;font-weight:600}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.input{border:1px solid var(--border);border-radius:8px;padding:10px 14px;font-size:15px;width:100%;background:var(--bg);color:var(--text)}.ui-early{font-size:20px}.ui-early button,.ui-early .btn-primary{font-size:22px;padding:20px 28px;min-height:64px}.ui-standard{font-size:15px}