/* Sentinel — auth pages (login, register, totp, blocked) */
:root {
  --bg: #f1f5f9;
  --bg2: #ffffff;
  --bg3: #f8fafc;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-dim: #64748b;
  --accent: #2563eb;
  --critical: #dc2626;
  --success: #16a34a;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 24px;
}

/* ── Brand mark ── */
.auth-logo { text-align: center; margin-bottom: 28px; }
.auth-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: #eff6ff; border: 1px solid #bfdbfe;
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}
.auth-icon svg { color: var(--accent); }
.auth-logo h1 { font-size: 26px; font-weight: 700; letter-spacing: -.5px; color: var(--text); }
.auth-logo p { color: var(--text-dim); font-size: 13px; margin-top: 4px; }

/* ── Card ── */
.auth-wrap { width: 100%; max-width: 420px; }
.auth-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px; padding: 32px;
  box-shadow: 0 4px 24px rgba(15,23,42,.08);
}
.auth-card h2 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }
.auth-card .sub { color: var(--text-dim); font-size: 13px; margin-bottom: 22px; line-height: 1.5; }

/* ── Forms ── */
.form-group { margin-bottom: 15px; }
label { display: block; font-size: 13px; font-weight: 500; color: var(--text); margin-bottom: 6px; }
input {
  width: 100%; padding: 11px 14px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text); font-size: 14px;
  outline: none; transition: border-color .15s, box-shadow .15s;
}
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
input.valid   { border-color: var(--success); }
input.invalid { border-color: var(--critical); }
input::placeholder { color: #cbd5e1; }
.hint { font-size: 11px; color: var(--text-dim); margin-top: 4px; line-height: 1.4; }
.hint.err { color: var(--critical); }
.hint.ok  { color: var(--success); }

/* ── Section label (register) ── */
.section-label {
  font-size: 11px; font-weight: 700; letter-spacing: .8px; text-transform: uppercase;
  color: var(--text-dim); margin: 20px 0 12px; padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

/* ── Password strength bar ── */
.pw-strength { height: 3px; border-radius: 2px; background: var(--border); margin-top: 6px; overflow: hidden; }
.pw-bar { height: 100%; width: 0; border-radius: 2px; transition: width .3s, background .3s; }

/* ── Button ── */
.btn {
  width: 100%; padding: 12px;
  background: var(--accent); color: #fff;
  font-size: 15px; font-weight: 600; border: none;
  border-radius: var(--radius); cursor: pointer; transition: background .15s;
  margin-top: 8px;
}
.btn:hover { background: #1d4ed8; }

/* ── Alert ── */
.alert {
  padding: 11px 14px; border-radius: var(--radius); font-size: 13px; margin-bottom: 16px;
  background: #fef2f2; border: 1px solid #fecaca; color: #991b1b;
}

/* ── Info box (register step-info, totp steps) ── */
.info-box {
  background: #eff6ff; border: 1px solid #bfdbfe;
  border-radius: var(--radius); padding: 11px 14px;
  margin-bottom: 18px; font-size: 13px; color: var(--text-dim); line-height: 1.5;
}
.info-box strong { color: var(--accent); }

/* ── TOTP step list ── */
.step { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px; font-size: 13px; color: var(--text-dim); }
.step-num {
  background: #eff6ff; color: var(--accent);
  border: 1px solid #bfdbfe;
  border-radius: 50%; width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; flex-shrink: 0;
}

/* ── QR code area ── */
.qr-wrap {
  text-align: center; margin-bottom: 20px; padding: 20px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.qr-wrap img { max-width: 200px; border-radius: 6px; }

/* ── Secret code box ── */
.secret-box {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 10px 14px;
  font-family: monospace; font-size: 13px; color: var(--accent);
  text-align: center; margin-bottom: 20px;
  word-break: break-all; letter-spacing: 2px;
}

/* ── OTP input ── */
input.otp {
  font-size: 22px; letter-spacing: 6px; text-align: center; padding: 14px;
}

/* ── Footer ── */
.auth-footer { text-align: center; margin-top: 16px; font-size: 13px; color: var(--text-dim); }
.auth-footer a { color: var(--accent); }

/* ── Disclaimer (login) ── */
.disclaimer {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); margin-top: 20px;
  font-size: 11.5px; color: var(--text-dim); line-height: 1.6; overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
}
.disclaimer-toggle {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; cursor: pointer; user-select: none;
}
.disclaimer-toggle:hover { background: var(--bg3); }
.disclaimer-toggle span { font-size: 12px; color: var(--text-dim); font-weight: 500; }
.disclaimer-toggle svg { flex-shrink: 0; transition: transform .2s; color: var(--text-dim); }
.disclaimer-toggle.open svg:last-child { transform: rotate(180deg); }
.disclaimer-body { padding: 0 14px 14px; display: none; }
.disclaimer-body.open { display: block; }
.disclaimer strong { color: var(--text); }

/* ── Blocked page ── */
.blocked-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 12px; padding: 48px 40px; max-width: 480px; text-align: center;
  box-shadow: 0 4px 24px rgba(15,23,42,.08);
}
.blocked-icon { color: var(--critical); margin-bottom: 20px; }
.blocked-card h1 { font-size: 24px; font-weight: 700; margin-bottom: 12px; }
.blocked-card p { color: var(--text-dim); font-size: 14px; line-height: 1.6; }

/* ── Register 2-column grid ── */
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .row2 { grid-template-columns: 1fr; } }