/**
 * Career Evolution - Reusable Components & UI Patterns
 */

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.65rem 1.35rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: var(--leading-none);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--transition-fast);
  user-select: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background-color: var(--primary);
  color: var(--primary-text);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: var(--primary-text);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background-color: var(--accent);
  color: var(--accent-text);
  box-shadow: var(--shadow-sm);
}

.btn-accent:hover {
  background-color: var(--accent-hover);
  color: var(--accent-text);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border-color: var(--border-subtle);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-hover);
  border-color: var(--border-strong);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: var(--primary-text);
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.85rem 1.85rem;
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
}

.btn:disabled, .btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.card-interactive:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.card-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
}

.card-body {
  padding: var(--space-6);
}

.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-surface-subtle);
}

/* ==========================================================================
   Forms & Inputs
   ========================================================================== */
.form-group {
  margin-bottom: var(--space-4);
  position: relative;
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: var(--space-2);
}

.form-label .required {
  color: var(--danger);
  margin-left: 2px;
}

.form-control, .form-select, .form-textarea {
  width: 100%;
  padding: 0.7rem 1rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text-main);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-ring);
  outline: none;
}

.form-control::placeholder, .form-textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.8;
}

.form-control.is-invalid, .form-select.is-invalid {
  border-color: var(--danger);
}

.form-control.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.25);
}

.form-feedback {
  font-size: var(--text-xs);
  margin-top: var(--space-1);
}

.form-feedback.invalid {
  color: var(--danger);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-1);
}

/* Honeypot hidden field for spam protection */
.honey-field {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* ==========================================================================
   Badges
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.2rem 0.6rem;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  line-height: var(--leading-none);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary { background: var(--ce-blue-subtle); color: var(--ce-blue); }
.badge-accent { background: var(--ce-amber-subtle); color: var(--ce-amber-hover); }
.badge-success { background: #ecfdf5; color: #047857; }
.badge-warning { background: #fffbeb; color: #b45309; }
.badge-danger { background: #fef2f2; color: #b91c1c; }

[data-theme="dark"] .badge-primary { background: rgba(37, 99, 235, 0.2); color: #93c5fd; }
[data-theme="dark"] .badge-accent { background: rgba(245, 158, 11, 0.2); color: #fde68a; }
[data-theme="dark"] .badge-success { background: rgba(16, 185, 129, 0.2); color: #6ee7b7; }
[data-theme="dark"] .badge-danger { background: rgba(239, 68, 68, 0.2); color: #fca5a5; }

/* ==========================================================================
   Alerts & Notifications
   ========================================================================== */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  border: 1px solid transparent;
}

.alert-success {
  background-color: #ecfdf5;
  color: #065f46;
  border-color: #a7f3d0;
}

.alert-danger {
  background-color: #fef2f2;
  color: #991b1b;
  border-color: #fecaca;
}

.alert-info {
  background-color: #eff6ff;
  color: #1e40af;
  border-color: #bfdbfe;
}

.alert-warning {
  background-color: #fffbeb;
  color: #92400e;
  border-color: #fde68a;
}

[data-theme="dark"] .alert-success { background-color: rgba(6, 95, 70, 0.25); color: #6ee7b7; border-color: rgba(16, 185, 129, 0.3); }
[data-theme="dark"] .alert-danger { background-color: rgba(153, 27, 27, 0.25); color: #fca5a5; border-color: rgba(239, 68, 68, 0.3); }
[data-theme="dark"] .alert-info { background-color: rgba(30, 64, 175, 0.25); color: #93c5fd; border-color: rgba(59, 130, 246, 0.3); }
[data-theme="dark"] .alert-warning { background-color: rgba(146, 64, 14, 0.25); color: #fde68a; border-color: rgba(245, 158, 11, 0.3); }

/* ==========================================================================
   Toast System
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 400px;
  width: calc(100vw - var(--space-8));
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background-color: var(--bg-surface-elevated);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  animation: toastIn 0.3s var(--ease-spring);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Modals
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--bg-backdrop);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.modal-backdrop.is-active {
  display: flex;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  max-width: 580px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-2xl);
  animation: modalIn 0.3s var(--ease-spring);
}

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

/* ==========================================================================
   Empty States & Loading Spinner
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
  max-width: 480px;
  margin-inline: auto;
}

.empty-state-icon {
  font-size: 3rem;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
  line-height: 1;
}

.empty-state-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.spinner {
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: currentColor;
  animation: spin 0.8s linear infinite;
}

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

/* ==========================================================================
   Zero-CLS Responsive Ad Container Architecture
   ========================================================================== */
.ad-slot-wrapper {
  margin: var(--space-6) auto;
  text-align: center;
  clear: both;
  overflow: hidden;
  max-width: 100%;
}

.ad-label {
  display: block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-1);
  text-align: center;
}

.ad-slot-container {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  background-color: var(--bg-surface-subtle);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  box-sizing: border-box;
  position: relative;
  overflow: hidden;
  transition: background-color var(--transition-fast);
}

.ad-slot-leaderboard {
  min-height: 90px;
  width: 100%;
  max-width: 728px;
}

@media (max-width: 768px) {
  .ad-slot-leaderboard {
    min-height: 50px;
    max-width: 320px;
  }
}

.ad-slot-rectangle {
  min-height: 250px;
  width: 300px;
}

.ad-slot-in-article {
  min-height: 280px;
  width: 100%;
  max-width: 750px;
}

.ad-slot-bottom-sticky {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 850;
  background-color: var(--bg-surface);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.12);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-2) var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.ad-slot-mock {
  padding: var(--space-4);
  color: var(--text-muted);
  font-size: var(--text-xs);
  line-height: var(--leading-normal);
  text-align: center;
  max-width: 480px;
}

.affiliate-disclosure-banner {
  background-color: var(--bg-surface-subtle);
  border-left: 3px solid var(--ce-gold);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-6);
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: var(--leading-normal);
}

/* ==========================================================================
   Google Consent Mode v2 & Cookie Preferences Banner
   ========================================================================== */
.ce-consent-banner {
  position: fixed;
  bottom: var(--space-4);
  left: var(--space-4);
  right: var(--space-4);
  max-width: 860px;
  margin-inline: auto;
  z-index: 9999;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2xl);
  padding: var(--space-5);
  display: none;
  animation: slideUpConsent 0.35s var(--ease-spring);
}

@keyframes slideUpConsent {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.ce-consent-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .ce-consent-content {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.ce-consent-text h4 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-1);
  color: var(--text-main);
}

.ce-consent-text p {
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: var(--leading-normal);
  margin: 0;
}

.ce-consent-text a {
  color: var(--primary);
  text-decoration: underline;
}

.ce-consent-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  align-items: center;
  flex-shrink: 0;
}

.ce-consent-modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  backdrop-filter: blur(4px);
}

.ce-consent-modal {
  background-color: var(--bg-surface);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-2xl);
  padding: var(--space-6);
  border: 1px solid var(--border-color);
}

.ce-consent-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.ce-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.ce-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.ce-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--border-color);
  transition: .3s;
  border-radius: 24px;
}

.ce-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

input:checked + .ce-slider {
  background-color: var(--primary);
}

input:checked + .ce-slider:before {
  transform: translateX(20px);
}

input:disabled + .ce-slider {
  opacity: 0.6;
  cursor: not-allowed;
}