:root {
  --bg:#f0f4fa; --card:#ffffff; --ink:#172033; --muted:#64748b;
  --brand:#174ea6; --brand2:#0f766e; --accent:#f59e0b;
  --bad:#dc2626; --good:#16a34a; --line:#e2e8f0;
  --input-bg:#f8fafc;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--ink)}
header{background:linear-gradient(135deg,#0b214a,#174ea6 55%,#0f766e);color:white;padding:28px 32px;box-shadow:0 4px 18px #0002}
header h1{margin:0;font-size:28px;letter-spacing:.2px}
header p{margin:8px 0 0;opacity:.92;max-width:980px;line-height:1.45}

/* ── layout ── */
.wrap{max-width:1220px;margin:0 auto;padding:24px}
.grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
.full{grid-column:1/-1}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 8px 24px #0f172a0d}
h2{font-size:20px;margin:0 0 12px}
h3{font-size:16px;margin:18px 0 8px}
.muted{color:var(--muted)}

/* ── KPI grid ── */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.kpi{border:1px solid var(--line);border-radius:14px;padding:14px;background:#fbfdff}
.kpi b{font-size:23px;display:block}
.kpi span{font-size:12px;color:var(--muted)}
.bar{height:8px;background:#e5e7eb;border-radius:99px;margin-top:8px;overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:width .4s ease}

/* ── inputs ── */
label{display:block;margin-top:12px;font-weight:650;font-size:14px}
select,input[type=text],input[type=email],input[type=password]{
  width:100%;margin-top:7px;padding:11px 12px;border:1px solid var(--line);
  border-radius:10px;background:var(--input-bg);font-size:14px;outline:none;
  transition:border-color .2s
}
select:focus,input:focus{border-color:var(--brand)}
input[type=range]{width:100%;margin-top:7px;accent-color:var(--brand)}

/* ── buttons ── */
.btn{border:0;border-radius:12px;padding:12px 18px;font-weight:750;cursor:pointer;
  background:var(--brand);color:white;margin-top:16px;font-size:14px;transition:opacity .15s}
.btn:hover{opacity:.88}
.btn.secondary{background:#334155}
.btn.ghost{background:#eef2ff;color:#174ea6}
.btn.danger{background:#fee2e2;color:#991b1b}
.btn:disabled{background:#94a3b8;cursor:not-allowed;opacity:1}
.btn-row{display:flex;gap:10px;flex-wrap:wrap}

/* ── pills ── */
.pill{display:inline-block;border-radius:999px;background:#eef2ff;color:#174ea6;
  padding:6px 10px;font-size:12px;font-weight:700;margin:3px 4px 3px 0}
.pill.good{background:#dcfce7;color:#166534}
.pill.warn{background:#fef3c7;color:#92400e}
.pill.bad{background:#fee2e2;color:#991b1b}

/* ── scenario & coach ── */
.scenario{border-left:5px solid var(--brand);padding:12px 14px;background:#f8fafc;
  border-radius:12px;line-height:1.5}
.coach{background:#f8fafc;border:1px dashed #cbd5e1;border-radius:14px;padding:14px;line-height:1.5}

/* ── table ── */
table{width:100%;border-collapse:collapse;margin-top:10px;font-size:14px}
th,td{border-bottom:1px solid var(--line);padding:10px;text-align:left}
th{background:#f8fafc;font-size:12px;text-transform:uppercase;color:#475569}
.right{text-align:right}

/* ── final scorecard ── */
.scoreBig{font-size:56px;font-weight:850;color:var(--brand);line-height:1}
.rank{font-size:22px;font-weight:850;margin:6px 0}

/* ── year nav ── */
.yearNav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.yearNav button{border:1px solid var(--line);background:white;border-radius:999px;
  padding:8px 14px;cursor:pointer;font-size:13px;transition:all .15s}
.yearNav button.active{background:var(--brand);color:white;border-color:var(--brand)}
.yearNav button:disabled{opacity:.4;cursor:not-allowed}

/* ── auth panels (single-flow) ── */
.authPanel{display:none}
.authPanel.active{display:block}

/* ── auth nav links ── */
.authNav{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.authNav a{color:var(--brand);font-weight:700;cursor:pointer;text-decoration:none}
.authNav a:hover{text-decoration:underline}

/* ── status messages ── */
.msg{border-radius:10px;padding:12px 14px;margin-top:14px;font-size:14px;line-height:1.5;display:none}
.msg.error{background:#fee2e2;color:#991b1b;display:block}
.msg.success{background:#dcfce7;color:#166534;display:block}
.msg.info{background:#eff6ff;color:#1e40af;display:block}
.msg.warn{background:#fef3c7;color:#92400e;display:block}

/* ── student badge ── */
.studentBadge{display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:#ecfeff;border:1px solid #99f6e4;border-radius:14px;padding:12px 16px;margin-bottom:16px}
.studentBadge b{color:#0f766e}

/* ── info boxes ── */
.infoBox{background:#eff6ff;border:1px solid #bfdbfe;border-radius:12px;padding:14px;
  margin-top:12px;font-size:13px;line-height:1.6;color:#1e40af}
.lockBox{background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;border-radius:14px;
  padding:12px 14px;margin-top:10px;font-size:13px}

/* ── spinner ── */
.spinner{display:inline-block;width:16px;height:16px;border:2px solid #ffffff44;
  border-top-color:white;border-radius:50%;animation:spin .6s linear infinite;vertical-align:middle;margin-left:8px}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── saving indicator ── */
.savingBadge{font-size:12px;color:var(--muted);margin-top:8px}
.savingBadge.saving{color:var(--accent)}
.savingBadge.saved{color:var(--good)}
.savingBadge.failed{color:var(--bad)}

/* ── utility ── */
.hidden{display:none}
.small{font-size:12px}
.checkboxRow{display:flex;gap:10px;align-items:flex-start;margin-top:14px}
.checkboxRow input{margin-top:3px;flex-shrink:0}
.regGrid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.warnText{color:#b45309}.goodText{color:#15803d}.badText{color:#b91c1c}
.mt8{margin-top:8px}.mt16{margin-top:16px}

/* ── password strength ── */
.pwStrength{height:4px;border-radius:99px;margin-top:6px;background:#e5e7eb;overflow:hidden}
.pwStrength i{display:block;height:100%;border-radius:99px;transition:width .3s,background .3s}

@media(max-width:900px){
  .grid,.regGrid{grid-template-columns:1fr}
  .kpis{grid-template-columns:repeat(2,1fr)}
  .btn-row{flex-direction:column}
}

.site-footer {
  text-align: center;
  font-size: 12px;
  color: #64748b;
  padding: 20px 0 30px;
  margin-top: 30px;
}

.site-footer a {
  color: #174ea6;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.site-footer .sep {
  margin: 0 8px;
  color: #94a3b8;
}