/* ============================================================
   Auth — Login page
   ============================================================ */

.auth-page {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 24px) 16px 40px;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(121,220,220,0.04) 0%, transparent 60%),
    var(--bg);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--divider);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
}

.auth-header {
  text-align: center;
  margin-bottom: 28px;
}
.auth-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  margin-bottom: 16px;
}
.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}
.auth-sub {
  font-size: 0.9rem;
  color: var(--text-sec);
}

/* OAuth buttons */
.auth-oauth {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}
.btn-oauth {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  background: var(--bg-alt);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.btn-oauth:hover {
  background: var(--bg-card-h);
  border-color: var(--text-muted);
}
.btn-oauth:active { transform: scale(0.98); }
.oauth-icon { width: 20px; height: 20px; flex-shrink: 0; }

/* Divider */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--divider);
}

/* Form */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-sec);
}
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  min-height: 48px;
}
.form-group input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-glow);
}
.form-group input::placeholder {
  color: var(--text-muted);
}

/* Password toggle */
.password-wrapper {
  position: relative;
}
.password-wrapper input { padding-right: 48px; }
.password-toggle {
  position: absolute;
  right: 4px; top: 50%;
  transform: translateY(-50%);
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 8px;
  -webkit-tap-highlight-color: transparent;
}
.password-toggle:hover { color: var(--text-sec); }
.password-toggle svg { width: 20px; height: 20px; }
.password-toggle .eye-closed { display: none; }
.password-wrapper.show-pw .eye-open { display: none; }
.password-wrapper.show-pw .eye-closed { display: block; }

/* Remember + forgot row */
.form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-sec);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  min-height: 44px;
}
.checkbox-label input[type="checkbox"] {
  display: none;
}
.checkbox-custom {
  width: 18px; height: 18px;
  border: 2px solid var(--text-muted);
  border-radius: 4px;
  flex-shrink: 0;
  position: relative;
  transition: background 0.2s, border-color 0.2s;
}
.checkbox-label input:checked + .checkbox-custom {
  background: var(--teal);
  border-color: var(--teal);
}
.checkbox-label input:checked + .checkbox-custom::after {
  content: '';
  position: absolute;
  left: 4px; top: 1px;
  width: 6px; height: 10px;
  border: solid var(--bg);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.form-link {
  font-size: 0.85rem;
  color: var(--text-muted);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.form-link:hover { color: var(--teal); }

/* Error message */
.form-error {
  font-size: 0.85rem;
  color: var(--red);
  min-height: 0;
  overflow: hidden;
  transition: min-height 0.2s;
}
.form-error:empty { display: none; }

/* Full-width button */
.btn--full {
  width: 100%;
  justify-content: center;
  position: relative;
}
.btn--small {
  padding: 8px 16px;
  font-size: 0.8rem;
  min-height: 36px;
}
.btn--danger {
  background: transparent;
  color: var(--red);
  border: 1px solid rgba(191, 97, 106, 0.3);
}
.btn--danger:hover {
  background: rgba(191, 97, 106, 0.1);
  color: var(--red);
  border-color: var(--red);
}

/* Spinner */
.btn-spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  position: absolute;
}
.btn-spinner[hidden] { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Footer note */
.auth-footer {
  text-align: center;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--divider);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.auth-footer strong {
  color: var(--teal);
  font-weight: 600;
}

/* --- Responsive --- */
@media (min-width: 640px) {
  .auth-card {
    padding: 40px 36px;
  }
}