/* ==========================================================================
   Login Premium — Split-Panel "Industrial Precision" Design
   Inspired by: HubSpot (split panel), Salesforce (trust/clarity),
   Dynamics 365 (progressive motion), Selltis.com (industrial DNA)
   ========================================================================== */

/* ── CSS Custom Properties (Login Scope) ────────────────────────────── */
:root {
  --login-navy: #0a1e3d;
  --login-blue: #1565c0;
  --login-blue-light: #42a5f5;
  --login-blue-glow: rgba(21, 101, 192, 0.35);
  --login-accent: #00bcd4;
  --login-accent-glow: rgba(0, 188, 212, 0.25);
  --login-surface: #f0f4f8;
  --login-surface-card: #ffffff;
  --login-surface-hover: #e8edf3;
  --login-text-primary: #0f172a;
  --login-text-secondary: #475569;
  --login-text-muted: #94a3b8;
  --login-border: #e2e8f0;
  --login-border-focus: #1565c0;
  --login-error: #dc2626;
  --login-error-bg: #fef2f2;
  --login-success: #16a34a;
  --login-radius: 10px;
  --login-radius-lg: 16px;
  --login-shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 4px 24px rgba(0,0,0,0.06);
  --login-shadow-input: 0 1px 2px rgba(0,0,0,0.04);
  --login-shadow-button: 0 1px 3px rgba(21, 101, 192, 0.3), 0 4px 16px rgba(21, 101, 192, 0.15);
  --login-font: 'DM Sans', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --login-font-display: 'Playfair Display', 'Georgia', serif;
  --login-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset & Base ───────────────────────────────────────────────────── */
.login-page {
  margin: 0;
  padding: 0;
  font-family: var(--login-font);
  font-size: 15px;
  color: var(--login-text-primary);
  background: var(--login-navy);
  min-height: 100vh;
  display: flex;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Split Panel Container ──────────────────────────────────────────── */
.login-split {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

/* ── Left Panel — Brand Story ───────────────────────────────────────── */
.login-brand-panel {
  flex: 0 0 45%;
  max-width: 45%;
  background: var(--login-navy);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 60px;
}

/* Geometric mesh background — evokes the Selltis spiral mark */
.login-brand-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 30% 50%, rgba(21, 101, 192, 0.15) 0%, transparent 70%),
    radial-gradient(ellipse 60% 80% at 70% 30%, rgba(0, 188, 212, 0.1) 0%, transparent 60%);
  z-index: 1;
}

/* Animated concentric rings — referencing Selltis spiral logo */
.login-brand-panel::after {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 18%, rgba(21, 101, 192, 0.08) 19%, transparent 20%),
    radial-gradient(circle, transparent 30%, rgba(21, 101, 192, 0.06) 31%, transparent 32%),
    radial-gradient(circle, transparent 42%, rgba(0, 188, 212, 0.05) 43%, transparent 44%),
    radial-gradient(circle, transparent 54%, rgba(21, 101, 192, 0.04) 55%, transparent 56%),
    radial-gradient(circle, transparent 66%, rgba(0, 188, 212, 0.03) 67%, transparent 68%),
    radial-gradient(circle, transparent 78%, rgba(21, 101, 192, 0.02) 79%, transparent 80%);
  animation: slowRotate 60s linear infinite;
  z-index: 1;
}

@keyframes slowRotate {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Grid pattern overlay */
.login-grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  z-index: 1;
}

/* Brand content */
.login-brand-content {
  position: relative;
  z-index: 10;
  text-align: left;
  max-width: 380px;
}

.login-brand-logo {
  display: block;
  width: 160px;
  height: auto;
  margin-bottom: 48px;
  filter: brightness(0) invert(1) drop-shadow(0 2px 12px rgba(0,0,0,0.3));
  opacity: 0;
  animation: fadeSlideUp 0.8s ease-out 0.2s forwards;
}

.login-brand-headline {
  font-family: var(--login-font-display);
  font-size: 38px;
  font-weight: 700;
  line-height: 1.2;
  color: #ffffff;
  margin: 0 0 20px 0;
  letter-spacing: -0.02em;
  opacity: 0;
  animation: fadeSlideUp 0.8s ease-out 0.4s forwards;
}

.login-brand-headline em {
  font-style: normal;
  background: linear-gradient(135deg, var(--login-blue-light), var(--login-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-brand-tagline {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  color: rgba(255,255,255,0.55);
  margin: 0 0 40px 0;
  opacity: 0;
  animation: fadeSlideUp 0.8s ease-out 0.6s forwards;
}

/* Trust indicators */
.login-trust-badges {
  display: flex;
  gap: 24px;
  align-items: center;
  opacity: 0;
  animation: fadeSlideUp 0.8s ease-out 0.8s forwards;
}

.login-trust-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.login-trust-badge i {
  font-size: 14px;
  color: var(--login-accent);
}

/* ── Company Stats Row ──────────────────────────────────────────────── */
.login-stats-row {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 36px;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  opacity: 0;
  animation: fadeSlideUp 0.8s ease-out 0.7s forwards;
}

.login-stat {
  flex: 1;
  text-align: center;
}

.login-stat-number {
  display: block;
  font-family: var(--login-font-display);
  font-size: 32px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1;
  margin-bottom: 4px;
  background: linear-gradient(135deg, #ffffff 60%, var(--login-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-stat-label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.login-stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  flex-shrink: 0;
}

/* ── Powered By ─────────────────────────────────────────────────────── */
.login-powered-by {
  margin-top: 20px;
  font-size: 11px;
  font-weight: 400;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.02em;
  opacity: 0;
  animation: fadeSlideUp 0.8s ease-out 1.0s forwards;
}

/* ── Right Panel — Sign In Form ─────────────────────────────────────── */
.login-form-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: var(--login-surface);
  padding: 60px;
  position: relative;
}

/* Subtle top accent line */
.login-form-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--login-blue), var(--login-accent));
}

.login-form-container {
  width: 100%;
  max-width: 400px;
  opacity: 0;
  animation: fadeSlideRight 0.7s ease-out 0.3s forwards;
}

/* Mobile logo — only shown on small screens */
.login-mobile-logo {
  display: none;
  margin-bottom: 32px;
  text-align: center;
}

.login-mobile-logo img {
  height: 36px;
  width: auto;
}

/* Form header */
.login-form-header {
  margin-bottom: 36px;
}

.login-form-title {
  font-family: var(--login-font);
  font-size: 28px;
  font-weight: 700;
  color: var(--login-text-primary);
  margin: 0 0 8px 0;
  letter-spacing: -0.025em;
}

.login-form-subtitle {
  font-size: 15px;
  color: var(--login-text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* ── Form Fields ─────────────────────────────────────────────────────── */
.login-field {
  margin-bottom: 20px;
  position: relative;
}

.login-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--login-text-primary);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}

.login-field .login-input-wrap {
  position: relative;
}

.login-field .login-input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--login-text-muted);
  font-size: 15px;
  transition: color var(--login-transition);
  pointer-events: none;
  z-index: 2;
}

.login-field .form-control,
.login-field input[type="text"],
.login-field input[type="password"] {
  width: 100%;
  height: 48px;
  padding: 0 16px 0 42px;
  font-size: 15px;
  font-family: var(--login-font);
  color: var(--login-text-primary);
  background: var(--login-surface-card);
  border: 1.5px solid var(--login-border);
  border-radius: var(--login-radius);
  box-shadow: var(--login-shadow-input);
  box-sizing: border-box;
  transition: all var(--login-transition);
  outline: none;
}

.login-field .form-control:hover,
.login-field input[type="text"]:hover,
.login-field input[type="password"]:hover {
  border-color: #cbd5e1;
  background: #fafbfc;
}

.login-field .form-control:focus,
.login-field input[type="text"]:focus,
.login-field input[type="password"]:focus {
  border-color: var(--login-border-focus);
  box-shadow: 0 0 0 3px var(--login-blue-glow);
  background: var(--login-surface-card);
}

.login-field .form-control:focus ~ .login-input-icon,
.login-field input:focus ~ .login-input-icon {
  color: var(--login-blue);
}

.login-field .form-control::placeholder,
.login-field input::placeholder {
  color: var(--login-text-muted);
  font-weight: 400;
}

/* ── Error Alert ─────────────────────────────────────────────────────── */
.login-error-alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  background: var(--login-error-bg);
  border: 1px solid #fecaca;
  border-radius: var(--login-radius);
  margin-bottom: 24px;
  animation: shakeIn 0.4s ease-out;
}

.login-error-alert i {
  color: var(--login-error);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 1px;
}

.login-error-alert span {
  color: var(--login-error);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
}

/* ── Primary Button ──────────────────────────────────────────────────── */
.login-btn-primary {
  width: 100%;
  height: 48px;
  background: var(--login-blue);
  color: #ffffff;
  border: none;
  border-radius: var(--login-radius);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--login-font);
  cursor: pointer;
  transition: all var(--login-transition);
  box-shadow: var(--login-shadow-button);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 4px;
  position: relative;
  overflow: hidden;
}

.login-btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity var(--login-transition);
}

.login-btn-primary:hover {
  background: #1256a3;
  box-shadow: 0 2px 4px rgba(21, 101, 192, 0.3), 0 8px 24px rgba(21, 101, 192, 0.2);
  transform: translateY(-1px);
}

.login-btn-primary:hover::before {
  opacity: 1;
}

.login-btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(21, 101, 192, 0.3);
}

.login-btn-primary i {
  font-size: 14px;
  transition: transform var(--login-transition);
}

.login-btn-primary:hover i {
  transform: translateX(2px);
}

/* ── Secondary / Cancel Button ───────────────────────────────────────── */
.login-btn-secondary {
  height: 40px;
  padding: 0 20px;
  background: transparent;
  color: var(--login-text-secondary);
  border: 1.5px solid var(--login-border);
  border-radius: var(--login-radius);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--login-font);
  cursor: pointer;
  transition: all var(--login-transition);
}

.login-btn-secondary:hover {
  background: var(--login-surface-hover);
  border-color: #cbd5e1;
  color: var(--login-text-primary);
}

/* ── Links & Actions ─────────────────────────────────────────────────── */
.login-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--login-border);
}

.login-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--login-blue);
  cursor: pointer;
  transition: color var(--login-transition);
  text-decoration: none;
  background: none;
  border: none;
  padding: 0;
  font-family: var(--login-font);
}

.login-link:hover {
  color: #1256a3;
  text-decoration: underline;
}

.login-actions-separator {
  width: 1px;
  height: 16px;
  background: var(--login-border);
}

/* ── SSO / Microsoft Button ──────────────────────────────────────────── */
.login-sso-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 24px 0;
}

.login-sso-divider::before,
.login-sso-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--login-border);
}

.login-sso-divider span {
  font-size: 12px;
  font-weight: 500;
  color: var(--login-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.login-btn-sso {
  width: 100%;
  height: 48px;
  background: var(--login-surface-card);
  border: 1.5px solid var(--login-border);
  border-radius: var(--login-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  transition: all var(--login-transition);
  text-decoration: none;
  font-family: var(--login-font);
  font-size: 14px;
  font-weight: 600;
  color: var(--login-text-primary);
}

.login-btn-sso:hover {
  background: var(--login-surface-hover);
  border-color: #cbd5e1;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.login-btn-sso svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ── SSO Hero Section ────────────────────────────────────────────────── */
.login-sso-hero {
  text-align: center;
  margin-bottom: 32px;
}

.login-sso-icon {
  width: 88px;
  height: 88px;
  margin: 0 auto 20px;
  background: linear-gradient(145deg, #f0f5ff 0%, #e4ecf9 50%, #dbeafe 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(18, 53, 104, 0.10), 0 0 0 1px rgba(72, 119, 174, 0.08);
}

.login-sso-icon svg {
  width: 44px;
  height: 44px;
  filter: drop-shadow(0 2px 4px rgba(18, 53, 104, 0.2));
}

.login-sso-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--login-text-primary);
  margin: 0 0 8px 0;
}

.login-sso-subtitle {
  font-size: 14px;
  color: var(--login-text-muted);
  line-height: 1.5;
  margin: 0;
}

/* ── Primary SSO Button (filled blue for emphasis) ───────────────────── */
.login-btn-sso.login-btn-sso-primary {
  background: var(--login-blue);
  color: #ffffff;
  border-color: var(--login-blue);
  font-weight: 600;
  font-size: 15px;
  height: 52px;
  box-shadow: 0 2px 8px rgba(72, 119, 174, 0.25);
  transition: all 0.2s ease;
}

.login-btn-sso.login-btn-sso-primary:hover {
  background: var(--login-blue-hover, #3a68a0);
  box-shadow: 0 4px 12px rgba(72, 119, 174, 0.35);
  transform: translateY(-1px);
  color: #ffffff;
}

.login-btn-sso.login-btn-sso-primary svg {
  width: 20px;
  height: 20px;
}

/* ── Sign Out Variant (subtle outlined) ──────────────────────────────── */
.login-btn-sso.login-btn-sso-signout {
  margin-top: 12px;
  background: transparent;
  border: 1px solid var(--login-border);
  color: var(--login-text-muted);
  font-size: 13px;
  height: 40px;
}

.login-btn-sso.login-btn-sso-signout:hover {
  background: var(--login-surface-hover, #f8fafc);
  border-color: #cbd5e1;
}

/* ── SSO Processing Spinner ──────────────────────────────────────────── */
.login-sso-processing {
  text-align: center;
  padding: 24px 0;
}

.login-sso-spinner {
  width: 36px;
  height: 36px;
  margin: 0 auto 12px;
  border: 3px solid var(--login-border, #e2e8f0);
  border-top-color: var(--login-blue);
  border-radius: 50%;
  animation: ssoSpin 0.8s linear infinite;
}

@keyframes ssoSpin {
  to { transform: rotate(360deg); }
}

.login-sso-processing p {
  font-size: 14px;
  color: var(--login-text-muted);
  margin: 0;
}

/* ── SSO Help / Support Link ─────────────────────────────────────────── */
.login-sso-help {
  text-align: center;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--login-border, #e2e8f0);
}

.login-sso-help p {
  font-size: 12px;
  color: var(--login-text-muted);
  margin: 0;
}

.login-sso-help a {
  color: var(--login-blue);
  text-decoration: none;
  font-weight: 500;
}

.login-sso-help a:hover {
  text-decoration: underline;
}

/* ── Change Password Section ─────────────────────────────────────────── */
.login-change-pwd {
  margin-top: 16px;
}

.login-pwd-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
}

/* ── Password Policy Label ───────────────────────────────────────────── */
.login-pwd-policy {
  font-size: 12px;
  font-weight: 500;
  color: var(--login-text-muted);
  cursor: pointer;
  transition: color var(--login-transition);
}

.login-pwd-policy:hover {
  color: var(--login-blue);
}

/* ── Message Display ─────────────────────────────────────────────────── */
.login-message {
  font-size: 13px;
  color: var(--login-error);
  margin-top: 12px;
  min-height: 20px;
}

/* ── Footer ──────────────────────────────────────────────────────────── */
.login-footer-text {
  position: absolute;
  bottom: 32px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 12px;
  color: var(--login-text-muted);
}

.login-footer-text a {
  color: var(--login-text-secondary);
  text-decoration: none;
}

.login-footer-text a:hover {
  color: var(--login-blue);
}

/* ── Loading Spinner Overlay ─────────────────────────────────────────── */
.login-spinner-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  z-index: 9998;
  align-items: center;
  justify-content: center;
}

.login-spinner-card {
  background: var(--login-surface);
  border-radius: var(--login-radius-lg);
  padding: 32px 40px;
  box-shadow: 0 25px 50px rgba(0,0,0,0.2);
  text-align: center;
  animation: fadeScaleIn 0.3s ease-out;
}

.login-spinner-icon {
  width: 40px;
  height: 40px;
  border: 3px solid var(--login-border);
  border-top-color: var(--login-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

.login-spinner-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--login-text-secondary);
}

/* ── Animations ──────────────────────────────────────────────────────── */
@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeSlideRight {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeScaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shakeIn {
  0% { transform: translateX(-8px); opacity: 0; }
  25% { transform: translateX(6px); }
  50% { transform: translateX(-4px); }
  75% { transform: translateX(2px); }
  100% { transform: translateX(0); opacity: 1; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .login-brand-panel {
    flex: 0 0 40%;
    max-width: 40%;
    padding: 40px;
  }

  .login-brand-headline {
    font-size: 30px;
  }

  .login-form-panel {
    padding: 40px;
  }
}

@media (max-width: 768px) {
  .login-split {
    flex-direction: column;
  }

  .login-brand-panel {
    display: none;
  }

  .login-form-panel {
    padding: 32px 24px;
    min-height: 100vh;
  }

  .login-form-panel::before {
    display: none;
  }

  .login-mobile-logo {
    display: block;
  }

  .login-form-container {
    max-width: 100%;
  }

  .login-footer-text {
    position: relative;
    bottom: auto;
    margin-top: 40px;
    padding-bottom: 24px;
  }

  /* Light background on mobile */
  .login-page {
    background: var(--login-surface);
  }

  /* Hide stats on mobile */
  .login-stats-row,
  .login-powered-by {
    display: none;
  }
}

/* ── Accessibility: Focus Visible ────────────────────────────────────── */
.login-field input:focus-visible {
  outline: 2px solid var(--login-blue);
  outline-offset: 2px;
}

.login-btn-primary:focus-visible,
.login-btn-secondary:focus-visible,
.login-btn-sso:focus-visible {
  outline: 2px solid var(--login-blue);
  outline-offset: 2px;
}

/* ── Reduced Motion Preference ───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .login-brand-logo,
  .login-brand-headline,
  .login-brand-tagline,
  .login-stats-row,
  .login-trust-badges,
  .login-powered-by,
  .login-form-container {
    animation: none;
    opacity: 1;
  }

  .login-brand-panel::after {
    animation: none;
  }

  .login-btn-primary:hover {
    transform: none;
  }
}