/* ========================================
   COMPARE — Comparison Tool Styles
   ======================================== */

.compare-header {
  text-align: center;
  padding: var(--space-2xl) 0;
}
.compare-header h1 { margin-bottom: var(--space-sm); }
.compare-header p {
  color: var(--color-text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* Phone Selectors */
.compare-selectors {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-xl);
  align-items: flex-start;
  margin-bottom: var(--space-2xl);
  position: relative;
}
@media (max-width: 768px) {
  .compare-selectors {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}
.compare-selector {
  background: var(--color-bg-card);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
  min-height: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  position: relative;
}
.compare-selector:hover {
  border-color: var(--color-border-hover);
}
.compare-selector.has-open-dropdown {
  z-index: 50;
  border-color: var(--color-border-accent);
}
.compare-selector.selected {
  border-style: solid;
  border-color: var(--color-border-accent);
  box-shadow: 0 4px 24px rgba(99, 139, 255, 0.08);
}

/* Card Content Area */
.compare-card {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex: 1;
  padding: var(--space-sm) 0;
  border-radius: var(--radius-lg);
  outline: none;
  transition: transform var(--transition-fast);
}
.compare-card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

/* Placeholder state */
.compare-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
}
.compare-placeholder-icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: var(--color-accent-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  transition: transform var(--transition-base), background var(--transition-base);
}
.compare-selector:hover .compare-placeholder-icon-wrap {
  transform: scale(1.08);
  background: rgba(99, 139, 255, 0.2);
}
.compare-placeholder-icon {
  width: 30px;
  height: 30px;
}
.compare-placeholder-text {
  color: var(--color-text-secondary);
  font-size: var(--text-base);
  font-weight: 600;
  margin: 0;
}

/* Selected Phone Card Preview */
.compare-phone-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}
.compare-phone-preview img {
  max-height: 130px;
  max-width: 130px;
  object-fit: contain;
  margin-bottom: var(--space-md);
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.3));
  transition: transform var(--transition-base);
}
.compare-card:hover .compare-phone-preview img {
  transform: translateY(-2px);
}
.compare-phone-preview h3 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-xs);
  color: var(--color-text-primary);
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.compare-phone-preview .phone-price {
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-weight: 700;
  font-size: var(--text-sm);
  background: var(--color-accent-muted);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: var(--space-xs);
}
.compare-change-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 4px;
  text-decoration: underline;
  text-underline-offset: 3px;
  opacity: 0.75;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}
.compare-card:hover .compare-change-hint {
  opacity: 1;
  color: var(--color-accent);
}

/* Picker & Dropdown Container */
.compare-picker-wrap {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin-top: var(--space-md);
}

.compare-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}
.compare-search-icon {
  position: absolute;
  left: 0.85rem;
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
  pointer-events: none;
}
.compare-input {
  width: 100%;
  padding: 0.65rem 3.8rem 0.65rem 2.4rem;
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--text-sm);
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}
.compare-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-muted);
  background: var(--color-bg-elevated);
}
.compare-input::placeholder {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

.compare-clear-btn {
  position: absolute;
  right: 2.2rem;
  width: 20px;
  height: 20px;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-card-hover);
  border: none;
  border-radius: 50%;
  color: var(--color-text-muted);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition-fast);
}
.compare-clear-btn:hover {
  background: var(--color-accent-muted);
  color: var(--color-text-primary);
}

.compare-dropdown-arrow {
  position: absolute;
  right: 0.65rem;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), transform var(--transition-fast);
}
.compare-dropdown-arrow svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}
.compare-picker-wrap.open .compare-dropdown-arrow svg {
  transform: rotate(180deg);
  color: var(--color-accent);
}

/* Custom Dropdown List */
.compare-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  max-height: 320px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  display: none;
  text-align: left;
  padding: var(--space-xs) 0;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-hover) transparent;
}
.compare-dropdown::-webkit-scrollbar {
  width: 6px;
}
.compare-dropdown::-webkit-scrollbar-thumb {
  background: var(--color-border-hover);
  border-radius: var(--radius-full);
}
.compare-picker-wrap.open .compare-dropdown {
  display: block;
  animation: compareDropdownFadeIn 180ms ease forwards;
}

@keyframes compareDropdownFadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.compare-dropdown-group-title {
  padding: 0.5rem 0.85rem 0.25rem;
  font-size: var(--text-xs);
  font-weight: 800;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--color-bg-elevated);
  position: sticky;
  top: 0;
  z-index: 2;
  border-bottom: 1px solid var(--color-border);
}

.compare-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.55rem 0.85rem;
  cursor: pointer;
  transition: background var(--transition-fast);
  user-select: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}
[data-theme="light"] .compare-dropdown-item {
  border-bottom-color: rgba(0, 0, 0, 0.03);
}
.compare-dropdown-item:last-child {
  border-bottom: none;
}
.compare-dropdown-item:hover,
.compare-dropdown-item.highlighted {
  background: var(--color-accent-muted);
}
.compare-dropdown-item.selected-item {
  background: rgba(99, 139, 255, 0.18);
}

.compare-item-img {
  width: 36px;
  height: 44px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  background: var(--color-bg-card);
  padding: 3px;
  flex-shrink: 0;
  border: 1px solid var(--color-border);
}
.compare-item-info {
  flex: 1;
  min-width: 0;
}
.compare-item-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}
.compare-item-sub {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.compare-item-dot {
  opacity: 0.5;
}
.compare-item-price {
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-weight: 600;
}

.compare-dropdown-empty {
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.compare-vs {
  font-size: var(--text-2xl);
  font-weight: 900;
  color: var(--color-accent);
  opacity: 0.6;
  align-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-accent-muted);
  user-select: none;
}
@media (max-width: 768px) {
  .compare-vs {
    margin: 0 auto;
  }
}

/* Comparison Table */
.compare-table {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.compare-table-header {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  font-weight: 700;
  font-size: var(--text-sm);
}
.compare-table-header > div {
  padding: var(--space-md) var(--space-lg);
}
.compare-table-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
  transition: background var(--transition-fast);
}
.compare-table-row:last-child { border-bottom: none; }
.compare-table-row:hover { background: var(--color-bg-card-hover); }
.compare-table-row > div {
  padding: 0.6rem var(--space-lg);
}
.compare-table-row .spec-name {
  color: var(--color-text-secondary);
}
.compare-table-row .winner {
  color: var(--color-green);
  font-weight: 600;
}
.compare-group-header {
  display: grid;
  grid-template-columns: 1fr;
  background: var(--color-accent-muted);
  padding: var(--space-sm) var(--space-lg);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}