/**
 * Product Tabs Section — product-detail.html tab-section
 */

.vsw-product-tabs {
  --vsw-pts-max-width: 1320px;
  --vsw-pts-padding-x: 32px;
  --vsw-pts-red-500: #e63946;
  --vsw-pts-red-600: #c1121f;
  --vsw-pts-bg-primary: #fafafa;
  --vsw-pts-bg-secondary: #ffffff;
  --vsw-pts-bg-tertiary: #f4f4f5;
  --vsw-pts-bg-glass: rgba(0, 0, 0, 0.02);
  --vsw-pts-bg-glass-hover: rgba(0, 0, 0, 0.04);
  --vsw-pts-border-color: rgba(0, 0, 0, 0.08);
  --vsw-pts-border-hover: rgba(230, 57, 70, 0.3);
  --vsw-pts-text-primary: #18181b;
  --vsw-pts-text-secondary: #52525b;
  --vsw-pts-text-tertiary: #a1a1aa;
  --vsw-pts-shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.12);
  --vsw-pts-gradient-red: linear-gradient(135deg, #e63946 0%, #c1121f 100%);
  --vsw-pts-gradient-red-soft: linear-gradient(135deg, rgba(230, 57, 70, 0.15) 0%, rgba(193, 18, 31, 0.05) 100%);

  box-sizing: border-box;
  padding: 100px 0;
  background: transparent;
  color: var(--vsw-pts-text-primary);
}

.vsw-product-tabs.vsw-product-tabs--has-bg {
  background-color: var(--vsw-pts-section-bg, var(--vsw-pts-bg-primary));
}

.vsw-product-tabs.vsw-product-tabs--dark,
.vsw-product-tabs[data-theme='dark'] {
  --vsw-pts-bg-primary: #0a0a0b;
  --vsw-pts-bg-secondary: #131316;
  --vsw-pts-bg-tertiary: #1a1a1f;
  --vsw-pts-bg-glass: rgba(255, 255, 255, 0.03);
  --vsw-pts-bg-glass-hover: rgba(255, 255, 255, 0.06);
  --vsw-pts-border-color: rgba(255, 255, 255, 0.08);
  --vsw-pts-border-hover: rgba(230, 57, 70, 0.4);
  --vsw-pts-text-primary: #f5f5f7;
  --vsw-pts-text-secondary: #a1a1aa;
  --vsw-pts-text-tertiary: #71717a;
  --vsw-pts-shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.5);
}

.vsw-product-tabs.vsw-product-tabs--light,
.vsw-product-tabs[data-theme='light'] {
  --vsw-pts-bg-primary: #fafafa;
  --vsw-pts-bg-secondary: #ffffff;
  --vsw-pts-bg-tertiary: #f4f4f5;
  --vsw-pts-bg-glass: rgba(0, 0, 0, 0.02);
  --vsw-pts-bg-glass-hover: rgba(0, 0, 0, 0.04);
  --vsw-pts-border-color: rgba(0, 0, 0, 0.08);
  --vsw-pts-border-hover: rgba(230, 57, 70, 0.3);
  --vsw-pts-text-primary: #18181b;
  --vsw-pts-text-secondary: #52525b;
  --vsw-pts-text-tertiary: #a1a1aa;
  --vsw-pts-shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.12);
}

.vsw-product-tabs *,
.vsw-product-tabs *::before,
.vsw-product-tabs *::after {
  box-sizing: inherit;
}

.vsw-product-tabs.vsw-product-tabs--width-full {
  width: 100vw;
  max-width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
}

.vsw-product-tabs .vsw-pts-inner {
  width: 100%;
  max-width: var(--vsw-pts-max-width);
  margin: 0 auto;
  padding-left: var(--vsw-pts-padding-x);
  padding-right: var(--vsw-pts-padding-x);
}

.vsw-product-tabs .vsw-pts-editor-note {
  margin: 0 0 24px;
  padding: 12px 16px;
  border-radius: 8px;
  background: rgba(230, 57, 70, 0.1);
  border: 1px solid rgba(230, 57, 70, 0.25);
  color: var(--vsw-pts-text-secondary);
  font-size: 13px;
}

.vsw-product-tabs .vsw-pts-tab-nav,
.vsw-product-tabs .tab-nav {
  display: flex;
  flex-wrap: nowrap;
  gap: 4px;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--vsw-pts-border-color);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--vsw-pts-border-color) transparent;
}

.vsw-product-tabs .vsw-pts-tab-nav::-webkit-scrollbar,
.vsw-product-tabs .tab-nav::-webkit-scrollbar {
  height: 4px;
  width: 0;
}

.vsw-product-tabs .vsw-pts-tab-nav::-webkit-scrollbar-thumb,
.vsw-product-tabs .tab-nav::-webkit-scrollbar-thumb {
  background: var(--vsw-pts-border-color);
  border-radius: 2px;
}

.vsw-product-tabs .tab-btn {
  padding: 16px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--vsw-pts-text-secondary);
  position: relative;
  transition: color 0.3s ease;
  white-space: nowrap;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.vsw-product-tabs .tab-btn::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--vsw-pts-gradient-red);
  transform: scaleX(0);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.vsw-product-tabs .tab-btn:hover {
  color: var(--vsw-pts-text-primary);
}

.vsw-product-tabs .tab-btn.active {
  color: var(--vsw-pts-red-500);
}

.vsw-product-tabs .tab-btn.active::after {
  transform: scaleX(1);
}

.vsw-product-tabs .tab-panel {
  display: none;
  animation: vswPtsFadeIn 0.5s ease;
}

.vsw-product-tabs .tab-panel.active {
  display: block;
}

@keyframes vswPtsFadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.vsw-product-tabs .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--vsw-pts-red-500);
  margin-bottom: 20px;
}

.vsw-product-tabs .eyebrow::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--vsw-pts-gradient-red);
}

.vsw-product-tabs .section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  color: var(--vsw-pts-text-primary);
}

.vsw-product-tabs .section-subtitle {
  font-size: 1.1rem;
  color: var(--vsw-pts-text-secondary);
  max-width: 640px;
  line-height: 1.7;
  margin: 0;
}

.vsw-product-tabs .gradient-text {
  background: var(--vsw-pts-gradient-red);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.vsw-product-tabs .vsw-pts-mt {
  margin-top: 48px;
}

/* Features */
.vsw-product-tabs .features-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.vsw-product-tabs .feature-card {
  padding: 36px 32px;
  border-radius: 20px;
  background: var(--vsw-pts-bg-secondary);
  border: 1px solid var(--vsw-pts-border-color);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.vsw-product-tabs .feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--vsw-pts-gradient-red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.vsw-product-tabs .feature-card:hover::before {
  transform: scaleX(1);
}

.vsw-product-tabs .feature-card:hover {
  border-color: var(--vsw-pts-border-hover);
  transform: translateY(-4px);
}

.vsw-product-tabs .feature-num {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--vsw-pts-red-500);
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.vsw-product-tabs .feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--vsw-pts-gradient-red-soft);
  border: 1px solid rgba(230, 57, 70, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--vsw-pts-red-500);
  margin-bottom: 20px;
  transition: all 0.4s ease;
  font-size: 26px;
  line-height: 1;
}

.vsw-product-tabs .feature-card:hover .feature-icon {
  background: var(--vsw-pts-gradient-red);
  color: #fff;
  transform: scale(1.1) rotate(-5deg);
}

.vsw-product-tabs .feature-icon svg {
  width: 26px;
  height: 26px;
  display: block;
}

.vsw-product-tabs .feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--vsw-pts-text-primary);
}

.vsw-product-tabs .feature-card p {
  font-size: 0.9rem;
  color: var(--vsw-pts-text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* Structure */
.vsw-product-tabs .structure-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 48px;
}

.vsw-product-tabs .structure-block h3,
.vsw-product-tabs .structure-grid > div > h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--vsw-pts-text-primary);
}

.vsw-product-tabs .structure-grid .icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--vsw-pts-gradient-red-soft);
  border: 1px solid rgba(230, 57, 70, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--vsw-pts-red-500);
  flex-shrink: 0;
}

.vsw-product-tabs .structure-list {
  display: grid;
  gap: 16px;
}

.vsw-product-tabs .structure-item {
  padding: 20px 24px;
  border-radius: 16px;
  background: var(--vsw-pts-bg-secondary);
  border: 1px solid var(--vsw-pts-border-color);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all 0.3s ease;
}

.vsw-product-tabs .structure-item:hover {
  border-color: var(--vsw-pts-border-hover);
  transform: translateX(4px);
}

.vsw-product-tabs .structure-item .num {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--vsw-pts-gradient-red);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}

.vsw-product-tabs .structure-item .text .name {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--vsw-pts-text-primary);
}

.vsw-product-tabs .structure-item .text .desc {
  font-size: 0.85rem;
  color: var(--vsw-pts-text-secondary);
}

.vsw-product-tabs .config-grid {
  display: grid;
  gap: 20px;
}

.vsw-product-tabs .config-group .label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--vsw-pts-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.vsw-product-tabs .config-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.vsw-product-tabs .config-chip {
  padding: 10px 18px;
  border-radius: 100px;
  background: var(--vsw-pts-bg-secondary);
  border: 1px solid var(--vsw-pts-border-color);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--vsw-pts-text-secondary);
  transition: all 0.3s ease;
  cursor: pointer;
}

.vsw-product-tabs .config-chip:hover,
.vsw-product-tabs .config-chip.selected {
  background: var(--vsw-pts-gradient-red-soft);
  border-color: var(--vsw-pts-red-500);
  color: var(--vsw-pts-red-500);
}

/* Specs */
.vsw-product-tabs .vsw-pts-spec-wrap {
  margin-top: 48px;
  overflow-x: auto;
}

.vsw-product-tabs .spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--vsw-pts-bg-secondary);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--vsw-pts-border-color);
}

.vsw-product-tabs .spec-table thead {
  background: var(--vsw-pts-bg-tertiary);
}

.vsw-product-tabs .spec-table th {
  padding: 18px 24px;
  text-align: left;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--vsw-pts-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 1px solid var(--vsw-pts-border-color);
}

.vsw-product-tabs .spec-table td {
  padding: 16px 24px;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--vsw-pts-border-color);
  transition: background 0.3s ease;
}

.vsw-product-tabs .spec-table tbody tr:last-child td {
  border-bottom: none;
}

.vsw-product-tabs .spec-table tbody tr:hover td {
  background: var(--vsw-pts-bg-glass-hover);
}

.vsw-product-tabs .spec-table .param-name {
  font-weight: 600;
  color: var(--vsw-pts-text-primary);
}

.vsw-product-tabs .spec-table .param-value {
  color: var(--vsw-pts-text-secondary);
}

.vsw-product-tabs .spec-table .param-unit {
  color: var(--vsw-pts-text-tertiary);
  font-size: 0.85rem;
}

/* Cases */
.vsw-product-tabs .cases-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.vsw-product-tabs .case-card {
  border-radius: 20px;
  overflow: hidden;
  background: var(--vsw-pts-bg-secondary);
  border: 1px solid var(--vsw-pts-border-color);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.vsw-product-tabs .case-card:hover {
  border-color: var(--vsw-pts-border-hover);
  transform: translateY(-6px);
  box-shadow: var(--vsw-pts-shadow-lg);
}

.vsw-product-tabs .case-visual {
  height: 180px;
  background: var(--vsw-pts-bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--vsw-pts-border-color);
}

.vsw-product-tabs .case-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--vsw-pts-gradient-red-soft);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.vsw-product-tabs .case-card:hover .case-visual::before {
  opacity: 1;
}

.vsw-product-tabs .case-visual svg {
  width: 56px;
  height: 56px;
  color: var(--vsw-pts-text-tertiary);
  transition: all 0.4s ease;
  position: relative;
  z-index: 1;
}

.vsw-product-tabs .case-visual .case-image {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.vsw-product-tabs .case-card:hover .case-visual svg {
  color: var(--vsw-pts-red-500);
  transform: scale(1.15);
}

.vsw-product-tabs .case-flag {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--vsw-pts-bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--vsw-pts-border-color);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--vsw-pts-text-secondary);
  z-index: 2;
}

.vsw-product-tabs .case-body {
  padding: 24px;
}

.vsw-product-tabs .case-tag {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--vsw-pts-red-500);
  margin-bottom: 8px;
}

.vsw-product-tabs .case-body h4 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  margin: 0 0 8px;
  color: var(--vsw-pts-text-primary);
}

.vsw-product-tabs .case-body p {
  font-size: 0.85rem;
  color: var(--vsw-pts-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Reveal */
.vsw-product-tabs .reveal {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.vsw-product-tabs .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.vsw-product-tabs .reveal-delay-1 { transition-delay: 0.1s; }
.vsw-product-tabs .reveal-delay-2 { transition-delay: 0.2s; }
.vsw-product-tabs .reveal-delay-3 { transition-delay: 0.3s; }

@media (max-width: 1024px) {
  .vsw-product-tabs .features-grid {
    grid-template-columns: 1fr;
  }

  .vsw-product-tabs .structure-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .vsw-product-tabs .cases-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .vsw-product-tabs {
    padding: 60px 0;
  }

  .vsw-product-tabs .vsw-pts-inner {
    --vsw-pts-padding-x: 20px;
  }

  .vsw-product-tabs .cases-grid {
    grid-template-columns: 1fr;
  }

  .vsw-product-tabs .spec-table th,
  .vsw-product-tabs .spec-table td {
    padding: 12px 16px;
    font-size: 0.85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .vsw-product-tabs .reveal,
  .vsw-product-tabs .tab-panel,
  .vsw-product-tabs .feature-card,
  .vsw-product-tabs .case-card,
  .vsw-product-tabs .structure-item,
  .vsw-product-tabs .config-chip {
    transition: none;
    animation: none;
  }

  .vsw-product-tabs .reveal {
    opacity: 1;
    transform: none;
  }
}