:root{font-family:system-ui,-apple-system,sans-serif;color:#e5e7eb;background:#0b1020}*{box-sizing:border-box}body{margin:0}header,main,footer{max-width:940px;margin:auto;padding:20px}header{display:flex;justify-content:space-between;align-items:center}h1{margin:0;font-size:1.6rem}h2{font-size:1.2rem;margin:0 0 14px}.muted{color:#9ca3af}.tag{background:#1f2937;border-radius:50px;padding:7px 12px;font-size:.78rem}.hero{padding:24px;border-radius:22px;background:linear-gradient(120deg,#173c59,#134e4a);margin-bottom:18px}.hero strong{font-size:2rem}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.panel{background:#151e30;border:1px solid #263247;border-radius:18px;padding:18px;margin-bottom:16px}.metric{font-size:1.8rem;font-weight:750}label{display:block;color:#cbd5e1;margin:12px 0 5px;font-size:.92rem}input,select,button{font:inherit;border-radius:10px;padding:11px;width:100%;border:1px solid #475569;background:#0b1221;color:#fff}button{background:#10b981;color:#062d25;font-weight:700;border:0;cursor:pointer;margin-top:14px}button.secondary{background:#334155;color:white}.session{padding:14px 0;border-top:1px solid #334155}.session:first-child{border-top:0}.session b{display:block}.session small{color:#9ca3af}details{margin-top:8px}summary{cursor:pointer;color:#6ee7b7}footer{font-size:.82rem;color:#9ca3af}a{color:#6ee7b7}@media(max-width:620px){.grid{grid-template-columns:1fr}header{padding-bottom:8px}.hero strong{font-size:1.7rem}}

.history-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.history-form label{margin-top:6px}.history-form .wide{grid-column:1/-1}.history-row{display:flex;justify-content:space-between;gap:12px;align-items:center;border-top:1px solid #334155;padding:12px 0}.history-row:first-child{border-top:0}.history-row button{width:auto;margin:0;padding:8px 12px;background:#334155;color:#fff}.history-row small{color:#9ca3af}.hint{font-size:.85rem;color:#9ca3af}.readiness{font-size:1.4rem;font-weight:700}@media(max-width:620px){.history-form{grid-template-columns:repeat(2,minmax(0,1fr))}.history-form .wide{grid-column:1/-1}}

.spaced{margin-top:20px}.block{display:block}.locked body{visibility:hidden}