/*
 * login.css — the calm clinical front door (Meridian, DESIGN_BRIEF_V2).
 *
 * Flat graphite field, static aperture mark, posture line, hairline card with
 * a steel-blue submit, quiet build footer. Tokens only — no raw hex, no
 * animation beyond the submit progress spinner. Looks right in BOTH themes.
 */

.login-body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg0);
  color: var(--med-text);
  font-family: var(--font-primary);
  overflow-x: hidden;
}

/* ---- layout -------------------------------------------------------------- */
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 48px 20px;
}
.login-pane {
  width: 100%;
  max-width: 384px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ---- brand: static mark + product name + posture line --------------------- */
.login-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 30px;
  text-align: center;
}
.login-mark {
  width: 44px;
  height: 44px;
  color: var(--signal);
  margin-bottom: 14px;
}
.login-mark svg {
  width: 100%;
  height: 100%;
}
.login-name {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.login-name__ai {
  color: var(--ink-2);
  font-weight: 500;
}
.login-posture {
  margin: 8px 0 0;
  max-width: 320px;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--ink-2);
}

/* ---- the card -------------------------------------------------------------- */
.login-card {
  width: 100%;
  background: var(--bg1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-1);
  padding: 26px 28px 24px;
}

.login-card h3 {
  margin: 0 0 4px;
  font-family: var(--font-ui);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--ink);
}
.login-card .hint {
  margin: 0 0 20px;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--ink-muted);
}

.login-card form {
  display: flex;
  flex-direction: column;
}

.login-card label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--ink-2);
  margin-bottom: 6px;
}
.login-card label + input {
  margin-bottom: 16px;
}

.login-card input[type="text"],
.login-card input[type="password"] {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  font-size: var(--text-md);
  font-family: var(--font-ui);
  color: var(--ink);
  background: var(--bg0);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-xs);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  caret-color: var(--signal);
}
.login-card input::placeholder {
  color: var(--med-text-dim);
}
.login-card input:focus {
  border-color: var(--signal);
  box-shadow: 0 0 0 3px var(--med-focus-tint);
}
.login-card input:-webkit-autofill {
  -webkit-text-fill-color: var(--ink);
  -webkit-box-shadow: 0 0 0 60px var(--bg0) inset;
  transition: background-color 9999s ease-out;
}

/* caps-lock warning (JS toggles [hidden]) */
.capslock-hint {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: -6px 0 12px;
  font-size: var(--text-xs);
  color: var(--warn);
}
.capslock-hint svg {
  width: 13px;
  height: 13px;
  flex: none;
}

/* submit — inherits .btn--primary; sized as the card CTA */
.login-card button[type="submit"] {
  margin-top: 6px;
  width: 100%;
  height: 40px;
  font-size: var(--text-md);
}
.login-card button[type="submit"].is-authenticating {
  pointer-events: none;
  background: var(--signal-dim);
  border-color: var(--signal-dim);
  color: var(--ink);
}
.login-card button[type="submit"].is-authenticating .login-submit__label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.login-card button[type="submit"].is-authenticating .login-submit__label::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: var(--radius-pill);
  border: 2px solid color-mix(in srgb, var(--ink) 25%, transparent);
  border-top-color: var(--ink);
  animation: spin 0.7s linear infinite;
}

/* ---- alerts: status lines (3px accent + tint) ----------------------------- */
.login-card .alert {
  font-size: var(--text-sm);
  line-height: 1.5;
  padding: 10px 13px;
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  margin-bottom: 16px;
  border-left: 3px solid var(--hairline);
}
.login-card .alert.error {
  color: var(--stat);
  background: var(--stat-bg);
  border-left-color: var(--stat);
}
.login-card .alert.notice {
  color: var(--warn);
  background: var(--warn-bg);
  border-left-color: var(--warn);
}
.login-card .alert code {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--ink);
}

/* ---- build footer ----------------------------------------------------------- */
.login-foot {
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  color: var(--ink-muted);
}

/* ---- narrow viewports ------------------------------------------------------ */
@media (max-width: 480px) {
  .login-shell {
    padding: 36px 16px;
    align-items: start;
  }
  .login-brand {
    margin-top: 10vh;
    margin-bottom: 26px;
  }
  .login-card {
    padding: 22px 20px 20px;
  }
}