/* ============================================================
   VCGL Design System — Base Styles
   ============================================================ */

:root {
  --vcgl-primary:       #1a3c5e;
  --vcgl-primary-dark:  #122d47;
  --vcgl-primary-light: #2a5888;
  --vcgl-accent:        #e8a020;
  --vcgl-accent-dark:   #c98010;
  --vcgl-bg:            #f0f4f8;
  --vcgl-card-bg:       #ffffff;
  --vcgl-text:          #1e293b;
  --vcgl-text-muted:    #64748b;
  --vcgl-border:        #e2e8f0;
  --vcgl-radius:        0.75rem;
  --vcgl-radius-sm:     0.5rem;
  --vcgl-shadow:        0 10px 40px rgba(26, 60, 94, 0.12);
  --vcgl-shadow-sm:     0 2px 8px rgba(26, 60, 94, 0.08);
  --vcgl-transition:    0.2s ease;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--vcgl-bg);
  color: var(--vcgl-text);
  -webkit-font-smoothing: antialiased;
}

/* ---- Login Layout ---- */
.vcgl-login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(26, 60, 94, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(232, 160, 32, 0.05) 0%, transparent 50%),
    var(--vcgl-bg);
}

.vcgl-login-card {
  width: 100%;
  max-width: 440px;
  background: var(--vcgl-card-bg);
  border-radius: var(--vcgl-radius);
  box-shadow: var(--vcgl-shadow);
  border: 1px solid var(--vcgl-border);
  overflow: hidden;
}

/* ---- Logo / Header ---- */
.vcgl-login-header {
  background: linear-gradient(135deg, var(--vcgl-primary) 0%, var(--vcgl-primary-light) 100%);
  padding: 2.5rem 2rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.vcgl-login-header::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 120px; height: 120px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}

.vcgl-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  text-decoration: none;
}

.vcgl-logo-mark {
  width: 48px; height: 48px;
  border-radius: var(--vcgl-radius-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}
.vcgl-logo-mark .sidebar-logo-img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: var(--vcgl-radius-sm);
}
.vcgl-logo-mark .sidebar-logo-fallback {
  display: none;
  width: 100%; height: 100%;
  background: var(--vcgl-accent);
  border-radius: var(--vcgl-radius-sm);
  align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.25rem; color: white;
  letter-spacing: -1px;
}

.vcgl-logo-text {
  font-size: 1.75rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.5px;
}

.vcgl-tagline {
  color: rgba(255,255,255,0.65);
  font-size: 0.85rem;
  margin: 0;
}

/* ---- Form Body ---- */
.vcgl-login-body {
  padding: 2rem;
}

/* ---- Language Dropdown (global) ---- */
.vcgl-lang-switcher {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 1.25rem;
}

.vcgl-lang-dropdown {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  background: transparent;
  border: 1px solid var(--vcgl-border, var(--app-border));
  border-radius: 8px;
  padding: .3rem .55rem;
  color: var(--vcgl-text-muted, var(--app-text-muted));
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, border-color .2s, color .2s;
  white-space: nowrap;
}
.vcgl-lang-dropdown:hover,
.vcgl-lang-dropdown.show {
  border-color: var(--vcgl-primary);
  color: var(--vcgl-primary);
  background: rgba(0,0,0,.04);
}
.vcgl-lang-chevron {
  font-size: .55rem;
  transition: transform .2s;
}
.vcgl-lang-dropdown[aria-expanded="true"] .vcgl-lang-chevron {
  transform: rotate(180deg);
}
.vcgl-lang-flag { font-size: 1rem; line-height: 1; }
.vcgl-lang-menu {
  min-width: 150px;
  border: 1px solid var(--vcgl-border, var(--app-border));
  background: var(--vcgl-card-bg, var(--card-bg, #fff));
  box-shadow: 0 4px 16px rgba(0,0,0,.12);
  padding: .25rem;
  border-radius: 8px;
}
.vcgl-lang-menu .dropdown-item {
  border-radius: 6px;
  padding: .45rem .75rem;
  font-size: .85rem;
  color: var(--vcgl-text, var(--app-text));
}
.vcgl-lang-menu .dropdown-item:hover  { background: rgba(0,0,0,.05); }
.vcgl-lang-menu .dropdown-item.active {
  background: rgba(30,92,151,.1);
  color: var(--vcgl-primary);
  font-weight: 600;
}

/* ---- Form Controls ---- */
.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--vcgl-text);
  margin-bottom: 0.4rem;
}

.form-control {
  border: 1.5px solid var(--vcgl-border);
  border-radius: var(--vcgl-radius-sm);
  padding: 0.6rem 0.875rem;
  font-size: 0.9rem;
  color: var(--vcgl-text);
  background: #fafbfc;
  transition: border-color var(--vcgl-transition), box-shadow var(--vcgl-transition);
}

.form-control:focus {
  border-color: var(--vcgl-primary);
  box-shadow: 0 0 0 3px rgba(26, 60, 94, 0.1);
  background: #ffffff;
  outline: none;
}

.form-control.is-invalid {
  border-color: #dc3545;
  box-shadow: none;
}

.form-control.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

/* ---- Password Input Group ---- */
.input-group .form-control {
  border-right: none;
  border-radius: var(--vcgl-radius-sm) 0 0 var(--vcgl-radius-sm) !important;
}

.input-group .btn-outline-secondary {
  border: 1.5px solid var(--vcgl-border);
  border-left: none;
  background: #fafbfc;
  color: var(--vcgl-text-muted);
  border-radius: 0 var(--vcgl-radius-sm) var(--vcgl-radius-sm) 0 !important;
  padding: 0.6rem 0.75rem;
  transition: all var(--vcgl-transition);
}

.input-group .btn-outline-secondary:hover {
  background: #f0f4f8;
  color: var(--vcgl-primary);
  border-color: var(--vcgl-border);
}

.input-group:focus-within .form-control,
.input-group:focus-within .btn-outline-secondary {
  border-color: var(--vcgl-primary);
}

.input-group.has-validation .btn-outline-secondary {
  border-radius: 0 var(--vcgl-radius-sm) var(--vcgl-radius-sm) 0 !important;
}

/* ---- Buttons ---- */
.btn-vcgl-primary {
  background: linear-gradient(135deg, var(--vcgl-primary), var(--vcgl-primary-light));
  border: none;
  color: #ffffff;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.7rem 1.5rem;
  border-radius: var(--vcgl-radius-sm);
  transition: all var(--vcgl-transition);
  width: 100%;
  letter-spacing: 0.25px;
}

.btn-vcgl-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--vcgl-primary-dark), var(--vcgl-primary));
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(26, 60, 94, 0.25);
  color: #ffffff;
}

.btn-vcgl-primary:active {
  transform: translateY(0);
}

.btn-vcgl-primary:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* ---- Links ---- */
.vcgl-link {
  color: var(--vcgl-primary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color var(--vcgl-transition);
}

.vcgl-link:hover {
  color: var(--vcgl-accent);
  text-decoration: underline;
}

/* ---- Divider ---- */
.vcgl-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1rem 0;
  color: var(--vcgl-text-muted);
  font-size: 0.75rem;
}

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

/* ---- Footer ---- */
.vcgl-login-footer {
  text-align: center;
  padding: 1rem 2rem 1.5rem;
  border-top: 1px solid var(--vcgl-border);
  font-size: 0.75rem;
  color: var(--vcgl-text-muted);
}

/* ---- Modal Overrides ---- */
.modal-content {
  border: none;
  border-radius: var(--vcgl-radius);
  box-shadow: var(--vcgl-shadow);
}

.modal-header {
  background: linear-gradient(135deg, var(--vcgl-primary), var(--vcgl-primary-light));
  color: #ffffff;
  border-radius: var(--vcgl-radius) var(--vcgl-radius) 0 0;
  border-bottom: none;
  padding: 1.25rem 1.5rem;
}

.modal-header .btn-close {
  filter: invert(1) grayscale(1) brightness(2);
  opacity: 0.8;
}

.modal-header .btn-close:hover { opacity: 1; }

.modal-title {
  font-weight: 600;
  font-size: 1rem;
}

.modal-body { padding: 1.5rem; }

.modal-footer {
  border-top: 1px solid var(--vcgl-border);
  padding: 1rem 1.5rem;
}

/* ---- Password Strength ---- */
.password-strength {
  margin-top: 0.4rem;
}

.password-strength-bar {
  height: 4px;
  border-radius: 2px;
  background: var(--vcgl-border);
  overflow: hidden;
}

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

.strength-0 { width: 0%; }
.strength-1 { width: 25%; background: #dc3545; }
.strength-2 { width: 50%; background: #fd7e14; }
.strength-3 { width: 75%; background: #ffc107; }
.strength-4 { width: 100%; background: #198754; }

.password-strength-label {
  font-size: 0.72rem;
  color: var(--vcgl-text-muted);
  margin-top: 0.2rem;
}

/* ---- Checkbox ---- */
.form-check-input:checked {
  background-color: var(--vcgl-primary);
  border-color: var(--vcgl-primary);
}

.form-check-input:focus {
  box-shadow: 0 0 0 3px rgba(26, 60, 94, 0.1);
  border-color: var(--vcgl-primary);
}

/* ---- Alert ---- */
.alert {
  border-radius: var(--vcgl-radius-sm);
  font-size: 0.875rem;
  border: none;
}

.alert-danger { background: #fef2f2; color: #991b1b; }
.alert-success { background: #f0fdf4; color: #166534; }

/* ---- Responsive ---- */
@media (max-width: 480px) {
  .vcgl-login-card { border-radius: var(--vcgl-radius-sm); box-shadow: none; border: none; }
  .vcgl-login-body { padding: 1.5rem 1.25rem; }
  .vcgl-login-header { padding: 2rem 1.25rem 1.5rem; }
}

/* ---- Animations ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.vcgl-login-card {
  animation: fadeInUp 0.4s ease;
}