/* ================================================================
   COMPONENTS.CSS - Buttons, Cards, Forms, Navigation, UI Elements
   ================================================================ */

/* ================================================================
   BUTTONS
   ================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 600;
  line-height: var(--line-height-snug);
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn:focus-visible {
  outline: 3px solid var(--color-primary-400);
  outline-offset: 2px;
}

/* Button Variants */
.btn-primary {
  background-color: var(--bg-primary);
  color: var(--text-on-primary);
  border-color: var(--bg-primary);
}

.btn-primary:hover {
  background-color: var(--bg-primary-hover);
  border-color: var(--bg-primary-hover);
  color: var(--text-on-primary);
  text-decoration: none;
  box-shadow: var(--shadow-md), var(--shadow-glow-primary);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background-color: var(--bg-secondary-hover);
  border-color: var(--bg-secondary-hover);
  color: var(--text-on-secondary);
  text-decoration: none;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background-color: var(--bg-surface);
  border-color: var(--text-primary);
  color: var(--text-primary);
  text-decoration: none;
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: var(--bg-surface-sunken);
  color: var(--text-primary);
  text-decoration: none;
}

.btn-accent {
  background-color: var(--bg-accent);
  color: var(--color-primary-800);
  border-color: var(--border-primary);
}

.btn-accent:hover {
  background-color: var(--bg-accent-hover);
  color: var(--color-primary-900);
  text-decoration: none;
}

/* Button Sizes */
.btn-xs {
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  border-radius: 6px;
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  border-radius: 6px;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
  border-radius: 10px;
}

.btn-xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--font-size-lg);
  border-radius: 12px;
}

/* Button with Icon */
.btn-icon {
  padding: var(--space-3);
  border-radius: 8px;
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

/* Button Group */
.btn-group {
  display: inline-flex;
  gap: var(--space-2);
}

.btn-group .btn {
  border-radius: 0;
}

.btn-group .btn:first-child {
  border-radius: 8px 0 0 8px;
}

.btn-group .btn:last-child {
  border-radius: 0 8px 8px 0;
}

/* ================================================================
   CARDS
   ================================================================ */
.card {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--border-light);
}

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

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

.card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

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

.card-text {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-4);
}

/* Feature Card */
.feature-card {
  padding: var(--space-8);
  text-align: center;
  border-radius: 16px;
  background: linear-gradient(145deg, var(--bg-surface-elevated) 0%, var(--bg-surface) 100%);
  border: 1px solid var(--border-light);
}

.feature-card .icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-6);
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-700) 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: var(--shadow-glow-primary);
}

.feature-card .icon svg {
  width: 32px;
  height: 32px;
}

/* Pricing Card */
.pricing-card {
  padding: var(--space-8);
  border-radius: 16px;
  border: 2px solid var(--border-light);
  position: relative;
}

.pricing-card.featured {
  border-color: var(--color-primary-500);
  box-shadow: var(--shadow-lg), var(--shadow-glow-primary);
}

.pricing-card .badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-700) 100%);
  color: white;
  padding: var(--space-1) var(--space-4);
  border-radius: 20px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.pricing-card .price {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.pricing-card .price span {
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--text-tertiary);
}

/* Testimonial Card */
.testimonial-card {
  padding: var(--space-8);
  background: var(--bg-surface-elevated);
  border-radius: 16px;
  border: 1px solid var(--border-light);
}

.testimonial-card .quote {
  font-size: var(--font-size-lg);
  font-style: italic;
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
}

.testimonial-card .author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.testimonial-card .author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-card .author-name {
  font-weight: 700;
  color: var(--text-primary);
}

.testimonial-card .author-title {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

/* ================================================================
   FORMS
   ================================================================ */
.form-group {
  margin-bottom: var(--space-5);
}

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

.form-label .required {
  color: var(--color-primary-600);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background-color: var(--bg-surface-elevated);
  border: 2px solid var(--border-light);
  border-radius: 8px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-tertiary);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 20px;
  padding-right: var(--space-10);
}

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

.form-error {
  font-size: var(--font-size-sm);
  color: #dc2626;
  margin-top: var(--space-1);
}

/* Checkbox and Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.form-check-input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--color-primary-600);
  cursor: pointer;
}

.form-check-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  cursor: pointer;
}

/* Search Form */
.search-form {
  display: flex;
  gap: var(--space-2);
}

.search-form .form-input {
  flex: 1;
}

/* ================================================================
   NAVIGATION
   ================================================================ */
.main-navigation {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.main-navigation ul {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-navigation li {
  position: relative;
}

.main-navigation a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.main-navigation a:hover,
.main-navigation a:focus {
  color: var(--text-primary);
  background-color: var(--bg-surface-sunken);
  text-decoration: none;
}

.main-navigation .current-menu-item a,
.main-navigation .current-page-item a {
  color: var(--color-primary-700);
  background-color: var(--bg-accent);
  font-weight: 600;
}

/* Dropdown Menu */
.main-navigation .sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
  flex-direction: column;
  gap: 0;
}

.main-navigation li:hover > .sub-menu,
.main-navigation li:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-navigation .sub-menu a {
  padding: var(--space-3) var(--space-4);
  border-radius: 8px;
  width: 100%;
}

.main-navigation .sub-menu .sub-menu {
  top: 0;
  left: 100%;
  margin-left: var(--space-2);
}

/* Mobile Navigation */
.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
  border-radius: 8px;
}

.mobile-menu-toggle:hover {
  background-color: var(--bg-surface-sunken);
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* ================================================================
   HEADER COMPONENTS
   ================================================================ */
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-6);
}

.site-branding {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.site-logo {
  max-height: 40px;
  width: auto;
}

.site-title {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: var(--letter-spacing-tight);
}

.site-title a {
  color: inherit;
  text-decoration: none;
}

.site-title a:hover {
  color: var(--color-primary-700);
}

.site-description {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 2px solid var(--border-light);
  border-radius: 10px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--color-primary-500);
  color: var(--color-primary-600);
  background-color: var(--bg-accent);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

/* Search Toggle */
.search-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 2px solid var(--border-light);
  border-radius: 10px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.search-toggle:hover {
  border-color: var(--color-primary-500);
  color: var(--color-primary-600);
  background-color: var(--bg-accent);
}

/* ================================================================
   FOOTER COMPONENTS
   ================================================================ */
.footer-widgets {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.footer-widget .widget-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.footer-widget ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-widget li {
  margin-bottom: var(--space-2);
}

.footer-widget a {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-widget a:hover {
  color: var(--color-primary-600);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-light);
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--bg-primary);
  border-color: var(--bg-primary);
  color: var(--text-on-primary);
  transform: translateY(-2px);
}

/* ================================================================
   BADGES & LABELS
   ================================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background-color: var(--bg-accent);
  color: var(--color-primary-800);
}

.badge-secondary {
  background-color: var(--bg-surface-sunken);
  color: var(--text-secondary);
}

.badge-success {
  background-color: var(--bg-success);
  color: #15803d;
}

.badge-warning {
  background-color: var(--bg-warning);
  color: #b45309;
}

.badge-danger {
  background-color: var(--bg-danger);
  color: #b91c1c;
}

/* ================================================================
   ALERTS
   ================================================================ */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  border-radius: 10px;
  border: 1px solid transparent;
  margin-bottom: var(--space-6);
}

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

.alert-success {
  background-color: var(--bg-success);
  border-color: #bbf7d0;
  color: #15803d;
}

.alert-warning {
  background-color: var(--bg-warning);
  border-color: #fde68a;
  color: #b45309;
}

.alert-danger {
  background-color: var(--bg-danger);
  border-color: #fecaca;
  color: #b91c1c;
}

/* ================================================================
   TABS
   ================================================================ */
.tabs {
  display: flex;
  gap: var(--space-1);
  border-bottom: 2px solid var(--border-light);
  margin-bottom: var(--space-6);
}

.tab {
  padding: var(--space-3) var(--space-5);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab:hover {
  color: var(--text-primary);
}

.tab.active {
  color: var(--color-primary-700);
  border-bottom-color: var(--color-primary-500);
}

/* ================================================================
   ACCORDION / FAQ
   ================================================================ */
.accordion {
  border: 1px solid var(--border-light);
  border-radius: 12px;
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--border-light);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) var(--space-6);
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  transition: background-color var(--transition-fast);
}

.accordion-header:hover {
  background-color: var(--bg-surface-sunken);
}

.accordion-header svg {
  width: 20px;
  height: 20px;
  color: var(--text-tertiary);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.accordion-item.active .accordion-header svg {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.accordion-item.active .accordion-body {
  max-height: 500px;
}

.accordion-content {
  padding: 0 var(--space-6) var(--space-6);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ================================================================
   PAGINATION
   ================================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-12);
}

.page-numbers {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.page-numbers:hover {
  background: var(--bg-accent);
  border-color: var(--border-primary);
  color: var(--color-primary-800);
  text-decoration: none;
}

.page-numbers.current {
  background: var(--bg-primary);
  border-color: var(--bg-primary);
  color: var(--text-on-primary);
}

/* ================================================================
   DIVIDER
   ================================================================ */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-medium), transparent);
  margin: var(--space-8) 0;
}

.divider-short {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary-500), var(--color-primary-700));
  border-radius: 2px;
  margin: var(--space-4) 0;
}