/* ==========================================================================
   About Page Styles
   ========================================================================== */

/* ===== Hero ===== */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(160deg, #FAFBFC 0%, #EEF2F7 40%, #E8F0FE 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(78, 205, 196, 0.08) 0%, transparent 70%);
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26, 59, 107, 0.05) 0%, transparent 70%);
}
.hero .container { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(78, 205, 196, 0.12);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 50px;
  margin-bottom: 24px;
}
.hero-badge i { color: var(--accent); }
.hero h1 {
  font-size: 48px;
  font-weight: 900;
  line-height: 1.25;
  color: var(--primary-dark);
  margin-bottom: 20px;
}
.hero h1 span {
  background: linear-gradient(135deg, var(--cta), #FF8F6B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Story Section ===== */
.story-section {
  padding: 100px 0;
  background: var(--white);
}
.story-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.story-content .section-desc {
  margin-bottom: 24px;
  max-width: none;
}
.story-visual {
  position: relative;
}
.story-card {
  background: linear-gradient(135deg, #F8FAFC, #EEF2FF);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--border);
  position: relative;
}
.story-card-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}
.story-card-item:last-child { margin-bottom: 0; }
.story-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.story-card-item:nth-child(1) .story-card-icon { background: #DBEAFE; color: var(--primary); }
.story-card-item:nth-child(2) .story-card-icon { background: #D1FAE5; color: #059669; }
.story-card-item:nth-child(3) .story-card-icon { background: #FEF3C7; color: #D97706; }
.story-card-number {
  font-size: 28px;
  font-weight: 800;
  font-family: 'Inter', sans-serif;
  color: var(--primary-dark);
}
.story-card-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ===== Values Section ===== */
.values-section {
  padding: 100px 0;
  background: var(--bg);
}
.values-header {
  text-align: center;
  margin-bottom: 60px;
}
.values-header .section-desc { margin: 0 auto; }
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* ===== Approach Section (Timeline) ===== */
.approach-section {
  padding: 100px 0;
  background: var(--white);
}
.approach-header {
  text-align: center;
  margin-bottom: 60px;
}
.approach-header .section-desc { margin: 0 auto; }
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 32px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--accent), var(--primary-light));
  border-radius: 2px;
}
.timeline-item {
  display: flex;
  gap: 32px;
  margin-bottom: 48px;
  position: relative;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-marker {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 24px;
  font-weight: 800;
  font-family: 'Inter', sans-serif;
  color: var(--white);
  position: relative;
  z-index: 1;
}
.timeline-item:nth-child(1) .timeline-marker { background: linear-gradient(135deg, var(--primary), var(--primary-light)); }
.timeline-item:nth-child(2) .timeline-marker { background: linear-gradient(135deg, #059669, #34D399); }
.timeline-item:nth-child(3) .timeline-marker { background: linear-gradient(135deg, #D97706, #FBBF24); }
.timeline-item:nth-child(4) .timeline-marker { background: linear-gradient(135deg, #7C3AED, #A78BFA); }
.timeline-content {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  border: 1px solid var(--border);
  flex: 1;
  transition: all 0.3s;
}
.timeline-content:hover {
  box-shadow: var(--shadow-lg);
  transform: translateX(4px);
}
.timeline-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 8px;
}
.timeline-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Tech Section ===== */
.tech-section {
  padding: 80px 0;
  background: linear-gradient(160deg, var(--primary-dark), var(--primary));
  color: var(--white);
}
.tech-header {
  text-align: center;
  margin-bottom: 60px;
}
.tech-header .section-label { color: var(--accent); }
.tech-header .section-title { color: var(--white); }
.tech-header .section-desc { color: rgba(255,255,255,0.7); margin: 0 auto; }
.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.tech-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  gap: 20px;
  backdrop-filter: blur(10px);
  transition: all 0.3s;
}
.tech-card:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-4px);
}
.tech-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: rgba(78, 205, 196, 0.2);
  color: var(--accent);
}
.tech-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--white);
}
.tech-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero h1 { font-size: 38px; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .story-inner { gap: 40px; }
  .tech-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero { padding: 120px 0 60px; }
  .hero h1 { font-size: 32px; }
  .story-inner { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .timeline::before { left: 24px; }
  .timeline-marker { width: 48px; height: 48px; font-size: 18px; }
  .timeline-item { gap: 20px; }
  .timeline-content { padding: 20px 24px; }
  .tech-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 28px; }
  .values-grid { grid-template-columns: 1fr; }
  .timeline::before { left: 20px; }
  .timeline-marker { width: 40px; height: 40px; font-size: 16px; }
  .timeline-item { gap: 16px; }
}