:root{color-scheme:light;--bg: #f5f4fa;--card: rgba(255, 255, 255, .96);--border: rgba(124, 99, 186, .14);--text: #1e1a2e;--muted: #6e687f;--accent: #7457cf;--accent-soft: rgba(116, 87, 207, .12);--danger: #9c3951;--shadow: 0 22px 40px rgba(63, 47, 111, .12);--radius-xl: 28px;--radius-lg: 20px;--radius-md: 14px;font-family:IBM Plex Sans,Segoe UI,sans-serif}*{box-sizing:border-box}html,body{min-height:100%;margin:0;background:radial-gradient(circle at top,rgba(138,115,221,.16),transparent 28%),linear-gradient(180deg,#faf9fd 0%,var(--bg) 100%);color:var(--text)}body{padding:24px 16px}button{font:inherit}.app-shell{min-height:calc(100vh - 48px);display:grid;place-items:center}.view{width:min(720px,100%)}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow);padding:28px}.calibration-card{display:grid;gap:16px}.assistant-card{display:grid;gap:18px;min-height:min(78vh,760px)}.eyebrow{margin:0;color:var(--accent);font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.card-title{margin:0;font-size:clamp(2rem,4vw,3rem);line-height:.95}.card-copy,.timer-text,.summary-text,.transcript-empty,.turn-header{color:var(--muted)}.card-copy,.prompt-block,.timer-text,.summary-text{margin:0;line-height:1.5}.prompt-block{padding:18px;border-radius:var(--radius-lg);background:var(--accent-soft);color:var(--text);font-weight:600;white-space:pre-wrap}.meter{height:12px;border-radius:999px;background:#7457cf1f;overflow:hidden}.meter-fill{width:0;height:100%;border-radius:inherit;background:linear-gradient(180deg,#8b71dd,#6842c3);transition:width .12s linear}.button-row{display:flex;justify-content:center}.primary-button{appearance:none;border:0;border-radius:999px;padding:14px 24px;min-width:188px;background:linear-gradient(180deg,#8b71dd,#6842c3);color:#fff;font-weight:700;cursor:pointer;box-shadow:0 14px 24px #6842c33d;transition:opacity .12s ease,transform .12s ease}.primary-button:hover{transform:translateY(-1px)}.primary-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.transcript-log{min-height:420px;max-height:58vh;overflow:auto;display:flex;flex-direction:column;gap:12px}.transcript-empty{min-height:100%;display:grid;place-items:center;text-align:center;padding:32px 24px;border-radius:var(--radius-lg);background:#7457cf0f}.turn{padding:14px 16px;border-radius:var(--radius-md);background:#7457cf0d;border:1px solid rgba(124,99,186,.1)}.turn[data-role=assistant]{background:#7457cf17}.turn-header{display:flex;justify-content:space-between;gap:12px;margin-bottom:8px;font-size:.76rem;text-transform:uppercase;letter-spacing:.06em}.turn-body{white-space:pre-wrap;line-height:1.5}.error-box{padding:14px 16px;border-radius:var(--radius-md);background:#9c395114;border:1px solid rgba(156,57,81,.16);color:var(--danger)}@media(max-width:720px){body{padding:18px 12px}.card{padding:22px 18px}.transcript-log{min-height:360px}.primary-button{width:100%}}