/* ========================================================================
   DNSai Auth Pages — Login, Register, Forgot Password, Reset Password
   Standalone pages (not inside base.html nav shell).
   Uses CSS vars from theme.css.
   ======================================================================== */

/* --- Page Layout --- */
.auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  font-family: 'Roboto', 'Open Sans', 'Inter', sans-serif;
}

/* --- Brand Header --- */
.auth-brand {
  text-align: center;
  margin-bottom: 32px;
}

.auth-brand img {
  width: 56px;
  height: 56px;
  margin-bottom: 14px;
  filter: drop-shadow(0 0 30px var(--glow-primary)) drop-shadow(0 0 12px var(--glow-secondary));
}

.auth-brand h1 {
  font-size: 28px;
  font-weight: 400;
  letter-spacing: 1px;
  margin: 0 0 4px;
}

.auth-brand h1 .bold { font-weight: 700; }
.auth-brand h1 .thin { font-weight: 300; }

.auth-brand p {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0;
}

/* --- Card --- */
.auth-card {
  width: 100%;
  max-width: 420px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: 14px;
  padding: 36px 32px;
  box-shadow: var(--card-shadow);
}

.auth-card h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 24px;
  text-align: center;
}

/* --- Form --- */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.auth-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.auth-form label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.auth-form input {
  padding: 12px 14px;
  font-size: 14px;
  font-family: inherit;
  background-color: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-input);
  border-radius: 6px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  box-sizing: border-box;
}

.auth-form input:focus {
  border-color: var(--border-input-focus);
  box-shadow: var(--input-focus-shadow);
  outline: none;
}

.auth-form input.input-error {
  border-color: var(--color-error);
}

.auth-form .form-hint {
  font-size: 12px;
  color: var(--text-dimmed);
}

/* --- Password strength bar --- */
.password-strength {
  height: 4px;
  border-radius: 2px;
  background-color: var(--border-default);
  overflow: hidden;
  margin-top: 4px;
}

.password-strength-fill {
  height: 100%;
  border-radius: 2px;
  width: 0;
  transition: width 0.3s ease, background-color 0.3s ease;
}

.password-strength-fill.weak { width: 25%; background-color: var(--color-error); }
.password-strength-fill.fair { width: 50%; background-color: var(--color-warning); }
.password-strength-fill.good { width: 75%; background-color: var(--color-info); }
.password-strength-fill.strong { width: 100%; background-color: var(--color-success); }

.password-strength-text {
  font-size: 11px;
  margin-top: 4px;
  color: var(--text-dimmed);
}

.password-strength-text.weak { color: var(--color-error); }
.password-strength-text.fair { color: var(--color-warning); }
.password-strength-text.good { color: var(--color-info); }
.password-strength-text.strong { color: var(--color-success); }

/* --- Buttons --- */
.auth-btn {
  width: 100%;
  padding: 13px 20px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: box-shadow 0.3s ease, background 0.3s ease;
  color: #ffffff;
  background: var(--brand-gradient);
  margin-top: 4px;
}

.auth-btn:hover {
  background: var(--brand-gradient-hover);
  box-shadow: var(--btn-hover-shadow);
}

.auth-btn:disabled {
  background: var(--color-disabled-bg);
  color: var(--color-disabled-text);
  cursor: not-allowed;
  box-shadow: none;
}

.auth-btn.auth-btn-secondary {
  background: var(--btn-secondary-gradient);
}

.auth-btn.auth-btn-secondary:hover {
  opacity: 0.9;
}

/* --- Links row --- */
.auth-links {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-muted);
}

.auth-links a {
  color: var(--link-color);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.auth-links .divider {
  margin: 0 8px;
  color: var(--border-default);
}

/* --- Error / Success Messages --- */
.auth-message {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  display: none;
  text-align: center;
  margin-bottom: 8px;
}

.auth-message.error {
  display: block;
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  color: var(--error-text);
}

.auth-message.success {
  display: block;
  background: rgba(0, 200, 83, 0.1);
  border: 1px solid rgba(0, 200, 83, 0.3);
  color: var(--color-success);
}

.auth-message.info {
  display: block;
  background: rgba(64, 168, 255, 0.1);
  border: 1px solid rgba(64, 168, 255, 0.3);
  color: var(--color-info);
}

/* --- 2FA Section --- */
.twofa-section {
  display: none;
  text-align: center;
}

.twofa-section p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0 0 18px;
}

.twofa-section .form-group {
  max-width: 220px;
  margin: 0 auto;
}

.twofa-section input {
  text-align: center;
  font-size: 20px;
  letter-spacing: 6px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

/* --- Spinner for loading state --- */
.auth-btn .btn-spinner {
  display: none;
}

.auth-btn.loading .btn-text {
  display: none;
}

.auth-btn.loading .btn-spinner {
  display: inline;
}

/* --- Mode toggle (small, in corner) --- */
.auth-mode-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 100;
}

/* --- Footer --- */
.auth-footer {
  margin-top: 32px;
  text-align: center;
  font-size: 12px;
  color: var(--text-placeholder);
}

/* --- Success State (full card replacement) --- */
.auth-success {
  display: none;
  text-align: center;
  padding: 20px 0;
}

.auth-success .success-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.auth-success h2 {
  margin-bottom: 12px;
}

.auth-success p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  margin: 0 0 20px;
}

/* --- Responsive --- */
@media (max-width: 480px) {
  .auth-card {
    padding: 28px 20px;
    border-radius: 10px;
  }

  .auth-brand h1 {
    font-size: 24px;
  }

  .auth-btn {
    padding: 12px 16px;
    font-size: 14px;
  }
}