/* ═══════════════════════════════════════════════
   AMGOO V2 — About Page
   ═══════════════════════════════════════════════ */

/* Sub Navigation */
.about-subnav {
  position: sticky;
  top: 64px;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  padding: var(--space-md) 0;
  box-shadow: var(--shadow-sm);
}

.about-subnav .container {
  display: flex;
  gap: var(--space-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.about-subnav .container::-webkit-scrollbar { display: none; }

.subnav-link {
  white-space: nowrap;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-600);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.subnav-link:hover,
.subnav-link.active {
  color: var(--orange-500);
  background: var(--orange-200);
}

/* About Intro */
.about-intro-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-intro-text .badge {
  margin-bottom: var(--space-md);
}

.about-intro-text h2 {
  margin-bottom: var(--space-lg);
}

.about-intro-text p {
  margin-bottom: var(--space-md);
  line-height: 1.8;
  color: var(--gray-700);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.about-intro-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.image-placeholder {
  background: linear-gradient(135deg, var(--blue-800), var(--blue-600));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  border-radius: var(--radius-xl);
  font-size: 1.1rem;
  font-weight: 500;
}

/* Timeline */
.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 60px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gray-200);
}

.timeline-item {
  display: flex;
  gap: var(--space-xl);
  padding-bottom: var(--space-2xl);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.tl-year {
  width: 48px;
  text-align: right;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--orange-500);
  flex-shrink: 0;
  position: relative;
}

.tl-year::after {
  content: '';
  position: absolute;
  right: -18px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--orange-500);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--orange-200);
}

.tl-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  flex-grow: 1;
}

.tl-card h4 {
  margin-bottom: var(--space-xs);
}

/* Mission Layout */
.mission-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.mission-card {
  text-align: center;
  padding: var(--space-2xl);
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.mc-icon {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
}

.mission-card h3 {
  margin-bottom: var(--space-md);
}

.mission-card p {
  font-size: 1.1rem;
  color: var(--gray-700);
  font-weight: 500;
}

/* Biz Philosophy */
.biz-philosophy {
  padding: var(--space-2xl);
}

.biz-philosophy h3 {
  margin-bottom: var(--space-md);
}

/* Culture Grid */
.culture-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.culture-item-card {
  text-align: center;
  padding: var(--space-xl);
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-base);
}

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

.ci-emoji {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.culture-item-card h4 {
  margin-bottom: var(--space-xs);
}

/* Warehouse */
.warehouse-map {
  text-align: center;
}

.map-placeholder {
  position: relative;
  background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
  border-radius: var(--radius-xl);
  height: 300px;
  margin-bottom: var(--space-2xl);
  overflow: hidden;
}

.map-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1000 500' fill='rgba(255,255,255,0.05)'%3E%3Cpath d='M150 200 Q300 150 500 180 T850 200' stroke='rgba(255,255,255,0.1)' fill='none' stroke-width='2'/%3E%3C/svg%3E") center/cover no-repeat;
}

.map-dot {
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--orange-500);
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 0 12px rgba(245, 101, 26, 0.5);
  transform: translate(-50%, -50%);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 12px rgba(245, 101, 26, 0.5); }
  50% { box-shadow: 0 0 24px rgba(245, 101, 26, 0.8); }
}

.warehouse-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.wh-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}

.wh-card h4 {
  margin-bottom: var(--space-xs);
}

/* Cert Grid */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.cert-card {
  text-align: center;
  padding: var(--space-2xl);
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
}

.cert-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.cert-card h4 {
  margin-bottom: var(--space-xs);
}

@media (max-width: 1024px) {
  .about-intro-layout { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .mission-layout { grid-template-columns: 1fr; }
  .warehouse-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .culture-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .timeline::before { left: 24px; }
  .tl-year { width: 32px; font-size: 0.9rem; }
  .tl-year::after { right: -14px; width: 10px; height: 10px; }
  .timeline-item { gap: var(--space-md); }
  .warehouse-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .culture-grid { grid-template-columns: 1fr; }
}