/**
 * About Section — Premium Showcase
 * Professional engineering portfolio design
 *
 * @package Stratos_One_Portfolio
 * @version 4.0.0
 */

/* ============================================
   Section Base
   ============================================ */
.about-section {
  background-color: var(--color-bg-secondary);
  padding-top: var(--spacing-5xl);
  padding-bottom: var(--spacing-5xl);
  position: relative;
}

.about-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-border-strong) 30%, var(--color-border-strong) 70%, transparent 100%);
}

/* Subtle background glow */
.about-section::after {
  content: '';
  position: absolute;
  top: 20%;
  right: 10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ============================================
   Section Header with Badge
   ============================================ */
.about-section .section-header {
  text-align: center;
  margin-bottom: var(--spacing-4xl);
  position: relative;
  z-index: 1;
}

.about-section .section-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 6px 14px;
  background-color: var(--color-accent-subtle);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-primary);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  margin-bottom: var(--spacing-lg);
}

.about-section .section-badge svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
}

.about-section .section-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-md) 0;
  letter-spacing: var(--letter-spacing-tight);
  line-height: var(--line-height-tight);
}

.about-section .section-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--line-height-relaxed);
}

/* ============================================
   About Grid
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--spacing-4xl);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  align-items: start;
  position: relative;
  z-index: 1;
}

/* ============================================
   Photo Column with Floating Badges
   ============================================ */
.about-photo-column {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
}

.about-photo-frame {
  position: relative;
  width: 100%;
  max-width: 380px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-elevated) 100%);
  border: 1px solid var(--color-border-subtle);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  overflow: visible;
}

.about-photo-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.about-photo {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.about-photo-frame:hover .about-photo {
  transform: scale(1.03);
}

/* Floating Tech Badges - SMALL and positioned ABSOLUTELY */
.about-photo-frame .tech-badge {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
  font-size: 11px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  animation: float 3s ease-in-out infinite;
  z-index: 10;
  white-space: nowrap;
  backdrop-filter: blur(8px);
}

.about-photo-frame .tech-badge svg {
  width: 14px;
  height: 14px;
  stroke: var(--color-accent-primary);
  flex-shrink: 0;
}

.about-photo-frame .tech-badge span {
  line-height: 1;
}

/* Badge positions */
.about-photo-frame .tech-badge-1 {
  top: -12px;
  right: -10px;
  animation-delay: 0s;
}

.about-photo-frame .tech-badge-2 {
  bottom: 30%;
  left: -20px;
  animation-delay: 1s;
}

.about-photo-frame .tech-badge-3 {
  bottom: -12px;
  right: 15%;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

/* ============================================
   Content Column
   ============================================ */
.about-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  padding-top: var(--spacing-lg);
}

/* Profile Summary */
.about-summary {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.about-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

.about-text strong {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
}

/* Experience Timeline */
.about-timeline {
  margin-top: var(--spacing-md);
  padding: var(--spacing-lg);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.02) 0%, transparent 100%);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-lg);
}

.timeline-title {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-lg) 0;
  letter-spacing: var(--letter-spacing-tight);
}

.timeline-title svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-accent-primary);
}

.timeline-items {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  position: relative;
}

.timeline-items::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 20px;
  right: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-primary) 0%, var(--color-cyan) 100%);
  opacity: 0.3;
}

.timeline-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  position: relative;
  z-index: 1;
  flex: 1;
}

.timeline-year {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-accent-primary);
  line-height: 1;
}

.timeline-dot {
  width: 12px;
  height: 12px;
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-cyan));
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.timeline-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-align: center;
  font-weight: var(--font-weight-medium);
  line-height: 1.3;
}

/* Skills Section */
.about-skills {
  margin-top: var(--spacing-lg);
}

.skills-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-lg) 0;
  letter-spacing: var(--letter-spacing-tight);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.skills-title::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-accent-primary);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.skill-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.skill-item:hover {
  border-color: var(--color-border-accent);
  background-color: var(--color-bg-elevated);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.skill-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent-subtle);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.skill-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-accent-primary);
}

.skill-item strong {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.skill-item span {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  display: block;
}

/* CTA Button (full width, centered under grid) */
.about-cta-full {
  display: flex;
  justify-content: center;
  padding-top: var(--spacing-2xl);
  margin-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border-subtle);
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
}

.about-cta-full .btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 24px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  font-family: var(--font-family-base);
}

.about-cta-full .btn-primary {
  background-color: var(--color-accent-primary);
  color: #fff;
  box-shadow: 0 2px 12px rgba(59, 130, 246, 0.32);
}

.about-cta-full .btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(59, 130, 246, 0.42);
}

.about-cta-full .btn svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}

/* CTA Button (legacy - inside content column) */
.about-cta {
  padding-top: var(--spacing-lg);
  margin-top: var(--spacing-md);
  border-top: 1px solid var(--color-border-subtle);
}

.about-cta .btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 12px 24px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  font-family: var(--font-family-base);
}

.about-cta .btn-primary {
  background-color: var(--color-accent-primary);
  color: #fff;
  box-shadow: 0 2px 12px rgba(59, 130, 246, 0.32);
}

.about-cta .btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(59, 130, 246, 0.42);
}

.about-cta .btn svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}

/* ============================================
   Work Environment Modal
   ============================================ */
.work-env-content {
  padding: var(--spacing-lg);
}

.work-env-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-xl) 0;
  text-align: center;
}

.work-env-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.work-env-item {
  padding: var(--spacing-md);
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
}

.work-env-subtitle {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-primary);
  margin: 0 0 var(--spacing-sm) 0;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.work-env-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.work-env-list li {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  padding-left: var(--spacing-sm);
  position: relative;
}

.work-env-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-accent-primary);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-3xl);
  }

  .about-photo-column {
    order: -1;
  }

  .about-photo-frame {
    max-width: 340px;
  }

  .about-photo-frame .tech-badge {
    padding: 5px 10px;
    font-size: 10px;
  }

  .about-photo-frame .tech-badge svg {
    width: 12px;
    height: 12px;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .about-section {
    padding-top: var(--spacing-4xl);
    padding-bottom: var(--spacing-4xl);
  }

  .about-section .section-title {
    font-size: var(--font-size-xl);
  }

  .about-photo-frame {
    max-width: 100%;
  }

  .about-photo-frame .tech-badge-1 {
    right: 5%;
  }

  .about-photo-frame .tech-badge-2 {
    left: 5%;
  }

  .work-env-grid {
    grid-template-columns: 1fr;
  }
}