/* ============================================
   UI Components
   ============================================ */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.625rem 1.25rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: all var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::after { opacity: 1; }
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-primary);
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-on-accent);
  box-shadow: 0 8px 20px color-mix(in srgb, var(--color-accent) 30%, transparent);
}
.btn-accent:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-on-primary);
}
.btn-secondary:hover {
  background: var(--color-secondary-dark);
  transform: translateY(-1px);
}

.btn-outline {
  border-color: var(--color-primary-fg);
  color: var(--color-primary-fg);
  background: transparent;
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-surface);
}

.btn-ghost-white {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-on-primary);
  border: 1px solid rgba(255, 255, 255, 0.28);
}
.btn-ghost-white:hover {
  background: rgba(255, 255, 255, 0.22);
}

.btn-white {
  background: var(--color-on-primary);
  color: var(--color-primary);
}
.btn-white:hover {
  background: var(--color-bg);
  color: var(--color-primary-fg);
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--color-danger);
  color: var(--color-on-primary);
}
.btn-danger:hover {
  background: var(--color-danger);
  filter: brightness(1.08);
}

.btn-sm { padding: 0.375rem 0.875rem; font-size: var(--font-size-xs); }
.btn-lg { padding: 0.875rem 1.75rem; font-size: var(--font-size-base); }
.btn-xl { padding: 1rem 2rem; font-size: var(--font-size-lg); }
.btn-xs { padding: 0.25rem 0.5rem; font-size: var(--font-size-xs); }
.btn-block { width: 100%; }

/* Cards */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

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

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

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary-fg);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary-fg) 18%, transparent);
}

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

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

.form-error {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-danger);
  margin-top: var(--space-1);
}

.form-group--error .form-input,
.form-group--error .form-textarea {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px rgba(239,68,68,0.12);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
}

.form-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

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

/* Input Group */
.input-group {
  display: flex;
  align-items: stretch;
}

.input-group .form-input {
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
  flex: 1;
}

.input-group__addon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-3);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-left: none;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.input-group__addon:hover {
  background: var(--color-surface-2);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
}

.badge--success { background: rgba(16,185,129,0.15); color: var(--color-success); }
.badge--danger { background: rgba(239,68,68,0.15); color: var(--color-danger); }
.badge--warning { background: rgba(245,158,11,0.15); color: var(--color-warning); }
.badge--info { background: rgba(59,130,246,0.15); color: var(--color-info); }
.badge--primary { background: color-mix(in srgb, var(--color-primary-fg) 16%, transparent); color: var(--color-primary-fg); }

/* Alert */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-5);
}

.alert--success { background: rgba(16,185,129,0.1); color: var(--color-success); border: 1px solid rgba(16,185,129,0.2); }
.alert--error, .alert--danger { background: rgba(239,68,68,0.1); color: var(--color-danger); border: 1px solid rgba(239,68,68,0.2); }
.alert--warning { background: rgba(245,158,11,0.1); color: var(--color-warning); border: 1px solid rgba(245,158,11,0.2); }
.alert--info { background: rgba(59,130,246,0.1); color: var(--color-info); border: 1px solid rgba(59,130,246,0.2); }

/* Flash Message */
.flash {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  margin: var(--space-4) 0;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  animation: slideInDown 0.3s ease;
}

.flash--success { background: color-mix(in srgb, var(--color-success) 16%, transparent); color: var(--color-success); border: 1px solid color-mix(in srgb, var(--color-success) 30%, transparent); }
.flash--error { background: color-mix(in srgb, var(--color-danger) 16%, transparent); color: var(--color-danger); border: 1px solid color-mix(in srgb, var(--color-danger) 30%, transparent); }

.flash__close {
  margin-left: auto;
  font-size: 1.25rem;
  opacity: 0.6;
  cursor: pointer;
  padding: 0 var(--space-1);
  line-height: 1;
}

.flash__close:hover { opacity: 1; }

/* Toggle Switch */
.toggle-switch {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  user-select: none;
}

.toggle-switch input { display: none; }

.toggle-switch__slider {
  width: 44px;
  height: 24px;
  background: var(--color-gray-300);
  border-radius: var(--radius-full);
  position: relative;
  transition: background var(--transition-base);
  flex-shrink: 0;
}

.toggle-switch__slider::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  background: var(--color-bg);
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-switch__slider {
  background: var(--color-primary);
}

.toggle-switch input:checked + .toggle-switch__slider::after {
  transform: translateX(20px);
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 1.125rem;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--color-surface-2);
  transform: rotate(15deg);
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

.pagination__item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
  color: var(--color-text);
}

.pagination__item:hover,
.pagination__item--active {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

/* Section Tag */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  background: transparent;
  padding: 0;
  border-radius: 0;
  margin-bottom: var(--space-4);
  text-transform: none;
  letter-spacing: 0;
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-12);
}

.section-header--left {
  text-align: left;
  margin-left: 0;
  margin-right: auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, var(--font-size-4xl));
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.section-cta {
  text-align: center;
  margin-top: var(--space-12);
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
  width: 0%;
}

/* ── Lucide Icon Sizing ── */

/* Feature cards */
.feature-card__icon i[data-lucide],
.feature-card__icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--color-primary-fg);
  stroke-width: 1.75;
}

/* Service cards */
.service-card__icon i[data-lucide],
.service-card__icon svg {
  width: 36px;
  height: 36px;
  stroke: var(--color-primary-fg);
  stroke-width: 1.75;
}

/* Section tags / badges inline icons */
.section-tag i[data-lucide],
.section-tag svg,
.hero__badge i[data-lucide],
.hero__badge svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2;
  vertical-align: middle;
  margin-right: 4px;
}

/* Admin nav icons */
.nav-icon i[data-lucide],
.nav-icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 1.75;
  vertical-align: middle;
}


/* Star ratings */
.star-rating {
  display: flex;
  align-items: center;
  gap: 4px;
}
.star-rating i[data-lucide],
.star-rating svg {
  width: 16px;
  height: 16px;
  stroke: #f59e0b;
  fill: #f59e0b;
  stroke-width: 1.5;
}

/* Hero floating info cards */
.fc-icon i[data-lucide],
.fc-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-primary-fg);
  stroke-width: 1.75;
}

/* Check / trust list items */
.hero__trust i[data-lucide],
.hero__trust svg,
.trust-item i[data-lucide],
.trust-item svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-success, #22c55e);
  stroke-width: 2;
  flex-shrink: 0;
}

/* Pricing list check icons */
.pricing-card__features i[data-lucide],
.pricing-card__features svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-success, #22c55e);
  stroke-width: 2;
  vertical-align: middle;
  margin-right: 6px;
  flex-shrink: 0;
}

/* Contact info icons */
.contact-item__icon i[data-lucide],
.contact-item__icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-primary-fg);
  stroke-width: 1.75;
}

/* Value / about icons */
.value-icon i[data-lucide],
.value-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-primary-fg);
  stroke-width: 2;
  vertical-align: middle;
}

/* Step icons */
.step-icon i[data-lucide],
.step-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--color-primary-fg);
  stroke-width: 1.75;
}

/* Team card avatar icons */
.team-card__avatar i[data-lucide],
.team-card__avatar svg {
  width: 40px;
  height: 40px;
  stroke: var(--color-primary-fg);
  stroke-width: 1.5;
}

/* Admin logo icon */
.admin-sidebar__logo i[data-lucide],
.admin-sidebar__logo svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 1.75;
  vertical-align: middle;
}

/* Theme toggle icon */
.theme-toggle i[data-lucide],
.theme-toggle svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 1.75;
}

/* Star filled/empty states */
.star-rating i[data-lucide].star--empty,
.star-rating svg.star--empty {
  fill: transparent;
  stroke: #d1d5db;
}

/* Social link icons in footer */
.social-link i.bi,
.social-link i[data-lucide],
.social-link svg {
  width: 20px;
  height: 20px;
  font-size: 20px;
  line-height: 1;
  vertical-align: middle;
}

/* Admin stat card icons */
.admin-stat-card__icon i[data-lucide],
.admin-stat-card__icon svg {
  width: 28px;
  height: 28px;
  stroke: currentColor;
  stroke-width: 1.75;
}

/* Quick link icons */
.quick-link__icon i[data-lucide],
.quick-link__icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  stroke-width: 1.75;
}

/* Admin empty state icons */
.admin-empty__icon i[data-lucide],
.admin-empty__icon svg {
  width: 40px;
  height: 40px;
  stroke: currentColor;
  stroke-width: 1.5;
  opacity: 0.5;
}

/* Upload dropzone icon */
.upload-dropzone__icon i[data-lucide],
.upload-dropzone__icon svg {
  width: 48px;
  height: 48px;
  stroke: var(--color-text-secondary);
  stroke-width: 1.5;
}

/* Media file icon */
.media-item__file-icon i[data-lucide],
.media-item__file-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--color-text-secondary);
  stroke-width: 1.5;
}

/* Flash / alert icons */
.flash__icon i[data-lucide],
.flash__icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  vertical-align: middle;
}

/* Logo icon */
.logo-icon i[data-lucide],
.logo-icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  stroke-width: 1.75;
  vertical-align: middle;
}