/* Auth pages — layout on top of iching-lab.com/css/variables.css tokens */

html {
  height: 100%;
}

body.auth-page {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  position: relative;
  z-index: 1;
}

.auth-header {
  flex-shrink: 0;
  padding: var(--space-md) var(--space-sm);
  border-bottom: 1px solid var(--paper-3);
  background: rgba(253, 248, 240, 0.92);
}

.auth-header__inner {
  max-width: 28rem;
  margin: 0 auto;
  text-align: center;
}

.auth-brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  text-decoration: none;
  color: var(--ink);
}

.auth-brand:hover {
  color: var(--accent);
}

.auth-brand__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.auth-brand__en {
  font-size: 0.75rem;
  color: var(--ink-3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.auth-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg) var(--space-sm);
}

.auth-card {
  width: 100%;
  max-width: 22rem;
  padding: var(--space-lg);
  background: var(--paper);
  border: 1px solid var(--paper-3);
  border-radius: var(--radius-card);
  box-shadow: 0 2px 12px rgba(26, 20, 16, 0.06);
}

.auth-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
  text-align: center;
  font-weight: 600;
}

.auth-notice {
  margin-bottom: var(--space-md);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  line-height: 1.5;
}

.auth-notice--success {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success-text);
}

.auth-notice--error {
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  color: var(--warning-text);
}

.auth-notice--info {
  background: var(--paper-2);
  border: 1px solid var(--paper-3);
  color: var(--ink-2);
  font-size: 0.85rem;
}

.auth-form label {
  display: block;
  font-size: 0.875rem;
  color: var(--ink-2);
  margin-bottom: 0.35rem;
}

.auth-form input[type="email"],
.auth-form input[type="password"] {
  width: 100%;
  padding: 0.6rem 0.75rem;
  margin-bottom: var(--space-sm);
  border: 1px solid var(--paper-3);
  border-radius: var(--radius-sm);
  font: inherit;
  color: var(--ink);
  background: #fff;
}

.auth-form input:focus {
  outline: 2px solid var(--accent-2);
  outline-offset: 1px;
  border-color: var(--accent);
}

.auth-form__terms {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--ink-2);
}

.auth-form__terms input {
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.auth-form__terms a {
  color: var(--accent);
}

.auth-btn {
  width: 100%;
  padding: 0.65rem 1rem;
  font: inherit;
  font-weight: 500;
  color: var(--paper);
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.auth-btn:hover {
  background: var(--accent-2);
}

.auth-link-row {
  margin-top: var(--space-md);
  text-align: center;
  font-size: 0.9rem;
}

.auth-link-row a {
  color: var(--accent);
  text-decoration: none;
}

.auth-link-row a:hover {
  text-decoration: underline;
}

.auth-body p {
  line-height: 1.6;
  color: var(--ink-2);
  margin-bottom: var(--space-sm);
}

.auth-body p:last-child {
  margin-bottom: 0;
}

.auth-body a {
  color: var(--accent);
}

.auth-footer {
  flex-shrink: 0;
  padding: var(--space-md) var(--space-sm);
  text-align: center;
  font-size: 0.8rem;
  color: var(--ink-3);
  border-top: 1px solid var(--paper-3);
}

.auth-footer a {
  color: var(--ink-2);
  text-decoration: none;
  margin: 0 0.35rem;
}

.auth-footer a:hover {
  color: var(--accent);
}

@media (max-width: 480px) {
  .auth-card {
    padding: var(--space-md);
  }

  .auth-main {
    align-items: flex-start;
    padding-top: var(--space-md);
  }
}