/* ============================================
   D-SECLAB Auth & Standalone Pages
   Login, Register, 2FA, Error pages
   Dark/Light + Responsive
   ============================================ */

/* --- Variables (standalone pages don't load custom-branding.css) --- */
:root {
  --auth-primary: #1a56db;
  --auth-primary-hover: #1347b8;
  --auth-text: #0f172a;
  --auth-text-secondary: #475569;
  --auth-text-muted: #64748b;
  --auth-text-faint: #94a3b8;
  --auth-bg: linear-gradient(135deg, #f0f4ff 0%, #e8eeff 50%, #f5f3ff 100%);
  --auth-card-bg: #ffffff;
  --auth-card-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  --auth-input-bg: #ffffff;
  --auth-input-border: #e2e8f0;
  --auth-input-focus-border: #1a56db;
  --auth-input-focus-shadow: 0 0 0 3px rgba(26, 86, 219, 0.08);
  --auth-input-placeholder: #94a3b8;
  --auth-alert-danger-bg: #fef2f2;
  --auth-alert-danger-text: #dc2626;
  --auth-alert-success-bg: #ecfdf5;
  --auth-alert-success-text: #059669;
  --auth-alert-warning-bg: #fffbeb;
  --auth-alert-warning-text: #92400e;
}

/* --- Dark Mode --- */
[data-theme="dark"] {
  --auth-primary: #3b82f6;
  --auth-primary-hover: #2563eb;
  --auth-text: #e2e8f0;
  --auth-text-secondary: #94a3b8;
  --auth-text-muted: #64748b;
  --auth-text-faint: #64748b;
  --auth-bg: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #1e293b 100%);
  --auth-card-bg: #1e293b;
  --auth-card-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --auth-input-bg: #0f172a;
  --auth-input-border: #334155;
  --auth-input-focus-border: #3b82f6;
  --auth-input-focus-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
  --auth-input-placeholder: #475569;
  --auth-alert-danger-bg: rgba(220, 38, 38, 0.15);
  --auth-alert-danger-text: #fca5a5;
  --auth-alert-success-bg: rgba(5, 150, 105, 0.15);
  --auth-alert-success-text: #6ee7b7;
  --auth-alert-warning-bg: rgba(217, 119, 6, 0.15);
  --auth-alert-warning-text: #fcd34d;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --auth-primary: #3b82f6;
    --auth-primary-hover: #2563eb;
    --auth-text: #e2e8f0;
    --auth-text-secondary: #94a3b8;
    --auth-text-muted: #64748b;
    --auth-text-faint: #64748b;
    --auth-bg: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #1e293b 100%);
    --auth-card-bg: #1e293b;
    --auth-card-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --auth-input-bg: #0f172a;
    --auth-input-border: #334155;
    --auth-input-focus-border: #3b82f6;
    --auth-input-focus-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    --auth-input-placeholder: #475569;
    --auth-alert-danger-bg: rgba(220, 38, 38, 0.15);
    --auth-alert-danger-text: #fca5a5;
    --auth-alert-success-bg: rgba(5, 150, 105, 0.15);
    --auth-alert-success-text: #6ee7b7;
    --auth-alert-warning-bg: rgba(217, 119, 6, 0.15);
    --auth-alert-warning-text: #fcd34d;
  }
}

/* --- Reset --- */
.auth-page {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.auth-page *, .auth-page *::before, .auth-page *::after {
  box-sizing: border-box;
}

/* --- Body --- */
.auth-page {
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--auth-bg);
  color: var(--auth-text);
  padding: 20px;
}

/* --- Logo Dark/Light Switch --- */
.auth-logo-dark { display: none !important; }
.auth-logo-light { display: inline !important; }

[data-theme="dark"] .auth-logo-dark { display: inline !important; }
[data-theme="dark"] .auth-logo-light { display: none !important; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .auth-logo-dark { display: inline !important; }
  :root:not([data-theme="light"]) .auth-logo-light { display: none !important; }
}

/* --- Card --- */
.auth-card {
  background: var(--auth-card-bg);
  border-radius: 16px;
  box-shadow: var(--auth-card-shadow);
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.auth-card--wide {
  max-width: 420px;
}

.auth-card--narrow {
  max-width: 380px;
}

/* --- Logo Section --- */
.auth-logo {
  text-align: center;
  margin-bottom: 28px;
}

.auth-logo img {
  height: 36px;
}

.auth-logo-title {
  font-size: 20px;
  font-weight: 700;
  margin-top: 12px;
  letter-spacing: -0.02em;
  color: var(--auth-text);
}

.auth-logo-subtitle {
  font-size: 13px;
  color: var(--auth-text-muted);
  margin-top: 4px;
}

/* --- Form --- */
.auth-form-group {
  margin-bottom: 16px;
}

.auth-form-group--compact {
  margin-bottom: 14px;
}

.auth-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--auth-text-secondary);
  margin-bottom: 4px;
}

.auth-label--left {
  text-align: left;
}

.auth-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--auth-input-border);
  border-radius: 8px;
  font-size: 14px;
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  outline: none;
  transition: border-color 0.15s;
  background: var(--auth-input-bg);
  color: var(--auth-text);
}

.auth-input::placeholder {
  color: var(--auth-input-placeholder);
}

.auth-input:focus {
  border-color: var(--auth-input-focus-border);
  box-shadow: var(--auth-input-focus-shadow);
}

.auth-input--code {
  font-size: 20px;
  text-align: center;
  letter-spacing: 8px;
  padding: 12px;
}

/* --- Checkbox --- */
.auth-check {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--auth-text-muted);
}

.auth-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--auth-primary);
}

.auth-check label {
  margin: 0;
  font-weight: 400;
}

/* --- Button --- */
.auth-btn {
  width: 100%;
  padding: 11px;
  background: var(--auth-primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  cursor: pointer;
  transition: background 0.15s;
}

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

.auth-btn--mt {
  margin-top: 16px;
}

/* --- Footer --- */
.auth-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--auth-text-faint);
}

.auth-footer a {
  color: var(--auth-primary);
  text-decoration: none;
  font-weight: 500;
}

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

/* --- Back Link --- */
.auth-back {
  display: block;
  margin-top: 16px;
  font-size: 13px;
  color: var(--auth-text-faint);
  text-decoration: none;
}

.auth-back:hover {
  color: var(--auth-primary);
}

/* --- Alerts --- */
.auth-alert {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
  font-weight: 500;
}

.auth-alert--compact {
  margin-bottom: 14px;
}

.auth-alert-danger {
  background: var(--auth-alert-danger-bg);
  color: var(--auth-alert-danger-text);
}

.auth-alert-success {
  background: var(--auth-alert-success-bg);
  color: var(--auth-alert-success-text);
}

.auth-alert-warning {
  background: var(--auth-alert-warning-bg);
  color: var(--auth-alert-warning-text);
}

/* --- 2FA Card (centered text) --- */
.auth-card--center {
  text-align: center;
}

.auth-card--center img {
  height: 36px;
  margin-bottom: 20px;
}

.auth-card--center h1 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--auth-text);
}

.auth-card--center p {
  font-size: 13px;
  color: var(--auth-text-muted);
  margin-bottom: 24px;
}

/* --- Error Pages --- */
.error-page {
  font-family: 'Inter', -apple-system, system-ui, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--auth-bg);
  color: var(--auth-text);
  text-align: center;
  padding: 20px;
  margin: 0;
}

.error-code {
  font-size: 72px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.error-code--primary { color: var(--auth-primary); }
.error-code--danger { color: #dc2626; }
.error-code--warning { color: #d97706; }

.error-text {
  font-size: 16px;
  color: var(--auth-text-muted);
  margin: 8px 0 20px;
}

.error-btn {
  display: inline-block;
  padding: 10px 20px;
  background: var(--auth-primary);
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  transition: background 0.15s;
}

.error-btn:hover {
  background: var(--auth-primary-hover);
  color: #fff;
}

/* --- Responsive --- */
@media (max-width: 480px) {
  .auth-page {
    padding: 16px;
    align-items: flex-start;
    padding-top: 40px;
  }

  .auth-card {
    padding: 28px 24px;
    border-radius: 12px;
  }

  .auth-logo img {
    height: 30px;
  }

  .auth-logo-title {
    font-size: 18px;
  }

  .auth-input {
    padding: 12px;
    font-size: 16px; /* prevents iOS zoom */
  }

  .auth-input--code {
    font-size: 22px;
    letter-spacing: 6px;
  }

  .auth-btn {
    padding: 13px;
    font-size: 15px;
  }

  .error-code {
    font-size: 56px;
  }

  .error-text {
    font-size: 14px;
  }
}

@media (max-width: 360px) {
  .auth-card {
    padding: 24px 20px;
  }

  .auth-logo-title {
    font-size: 16px;
  }
}