/* ============================================================
   stage3.css  |  Experience Timeline · Project Cards
   ============================================================ */

/* ════════════════════════════════════════════════
   EXPERIENCE
════════════════════════════════════════════════ */
.experience-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-2xl);
  align-items: start;
}

.experience-intro {
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}
.experience-intro h3 { font-size: 22px; margin-bottom: var(--space-md); line-height: 1.3; }
.experience-intro p  { font-size: 15px; color: var(--text-muted); margin-bottom: var(--space-lg); line-height: 1.8; }

.experience-total { display: flex; flex-direction: column; gap: var(--space-sm); }
.exp-total-item {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg-card); border: 1px solid var(--border-light);
  border-radius: var(--radius-md); padding: 12px var(--space-md);
}
.exp-total-icon {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  background: var(--accent-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.exp-total-label { font-size: 12px; color: var(--text-muted); font-weight: 500; }
.exp-total-value { font-size: 15px; font-weight: 700; color: var(--text-primary); }

/* Timeline */
.timeline { position: relative; }
.timeline::before {
  content: '';
  position: absolute;
  left: 21px; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(to bottom, var(--accent-primary) 0%, var(--accent-mid) 60%, transparent 100%);
}

.timeline-item { position: relative; padding-left: 64px; margin-bottom: var(--space-xl); }
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: 12px; top: 20px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 3px solid var(--accent-primary);
  z-index: 1;
  transition: transform var(--transition), box-shadow var(--transition);
}
.timeline-dot.active-dot { background: var(--accent-primary); box-shadow: 0 0 0 4px rgba(79,70,229,0.15); }
.timeline-item:hover .timeline-dot { transform: scale(1.2); box-shadow: 0 0 0 6px rgba(79,70,229,0.12); }

.exp-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-xl);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
}
.exp-card:hover { transform: translateX(6px); box-shadow: var(--shadow-lg); border-color: var(--border-accent); }
.exp-card::before {
  content: '';
  position: absolute;
  left: -9px; top: 24px;
  width: 16px; height: 16px;
  background: var(--bg-card);
  border-left: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  transform: rotate(45deg);
  border-radius: 2px;
}

.exp-card-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: var(--space-md); margin-bottom: var(--space-md); flex-wrap: wrap;
}
.exp-card-left { flex: 1; }
.exp-role    { font-size: 17px; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.exp-company {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--accent-primary); margin-bottom: 6px;
}
.exp-company-logo {
  width: 22px; height: 22px; border-radius: 4px;
  background: var(--accent-light); display: flex; align-items: center; justify-content: center; font-size: 12px;
}
.exp-meta { display: flex; align-items: center; gap: var(--space-md); flex-wrap: wrap; }
.exp-meta-item { display: flex; align-items: center; gap: 5px; font-size: 13px; color: var(--text-muted); font-weight: 500; }
.exp-meta-icon { font-size: 14px; }

.exp-status-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 12px; border-radius: var(--radius-full);
  font-size: 12px; font-weight: 600;
}
.exp-status-badge.completed { background: #f0fdf4; color: #166534; border: 1px solid rgba(22,101,52,0.2); }
.exp-status-badge.current   { background: var(--accent-light); color: var(--accent-primary); border: 1px solid var(--border-accent); }
.exp-status-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.exp-card-divider { height: 1px; background: var(--border-light); margin: var(--space-md) 0; }

.exp-points { display: flex; flex-direction: column; gap: 8px; margin-bottom: var(--space-md); }
.exp-point  { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.exp-point-bullet { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-primary); flex-shrink: 0; margin-top: 8px; }

.exp-tech-row   { display: flex; align-items: center; gap: var(--space-sm); flex-wrap: wrap; }
.exp-tech-label { font-size: 12px; font-weight: 600; color: var(--text-muted); font-family: var(--font-mono); margin-right: 4px; }

.timeline-item.future .exp-card        { background: var(--bg-secondary); border-style: dashed; border-color: var(--border-mid); box-shadow: none; }
.timeline-item.future .exp-card:hover  { transform: none; box-shadow: none; border-color: var(--accent-mid); }
.timeline-item.future .timeline-dot    { border-color: var(--border-mid); background: var(--bg-secondary); }
.exp-future-text { font-size: 14px; color: var(--text-subtle); font-style: italic; text-align: center; padding: var(--space-sm) 0; }

@media (max-width: 900px) {
  .experience-layout { grid-template-columns: 1fr; }
  .experience-intro  {
    position: static;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: var(--space-md); align-items: start;
  }
  .experience-intro h3,
  .experience-intro p { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .experience-intro { grid-template-columns: 1fr; }
  .exp-card { padding: var(--space-md); }
  .timeline-item { padding-left: 52px; }
}

/* ════════════════════════════════════════════════
   PROJECTS
════════════════════════════════════════════════ */
.projects-filters {
  display: flex; align-items: center; gap: var(--space-sm);
  flex-wrap: wrap; justify-content: center;
  margin-bottom: var(--space-xl);
}
.project-filter-btn {
  padding: 7px 18px; border-radius: var(--radius-full);
  font-size: 13px; font-weight: 500; cursor: pointer;
  border: 1.5px solid var(--border-light); color: var(--text-muted);
  background: var(--bg-card); transition: all var(--transition); font-family: var(--font-sans);
}
.project-filter-btn:hover { border-color: var(--border-accent); color: var(--accent-primary); background: var(--accent-light); }
.project-filter-btn.active { background: var(--accent-primary); color: #fff; border-color: var(--accent-primary); box-shadow: 0 2px 12px rgba(79,70,229,0.28); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.project-card:hover        { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--border-accent); }
.project-card.featured     { border-color: rgba(79,70,229,0.35); box-shadow: 0 4px 24px rgba(79,70,229,0.12); }
.project-card.featured:hover { box-shadow: 0 16px 48px rgba(79,70,229,0.18); }

.project-img-wrap {
  position: relative; overflow: hidden;
  aspect-ratio: 16/9; background: var(--bg-tertiary);
}
.project-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.project-card:hover .project-img-wrap img { transform: scale(1.06); }

.project-img-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 8px; font-size: 40px;
}
.project-img-placeholder span { font-size: 13px; color: var(--text-muted); font-family: var(--font-mono); }
.project-img-placeholder.gradient-1 { background: linear-gradient(135deg, #ede9fe 0%, #dbeafe 100%); }
.project-img-placeholder.gradient-2 { background: linear-gradient(135deg, #d1fae5 0%, #cffafe 100%); }
.project-img-placeholder.gradient-3 { background: linear-gradient(135deg, #fef3c7 0%, #fde8d8 100%); }
.project-img-placeholder.gradient-4 { background: linear-gradient(135deg, #fce7f3 0%, #ede9fe 100%); }

.project-featured-badge {
  position: absolute; top: 12px; left: 12px;
  background: var(--accent-primary); color: #fff;
  font-size: 11px; font-weight: 700; padding: 3px 10px;
  border-radius: var(--radius-full); letter-spacing: 0.5px; text-transform: uppercase;
}
.project-wip-badge {
  position: absolute; top: 12px; right: 12px;
  background: #fef3c7; color: #92400e; border: 1px solid rgba(146,64,14,0.2);
  font-size: 11px; font-weight: 600; padding: 3px 10px;
  border-radius: var(--radius-full); display: flex; align-items: center; gap: 4px;
}
.wip-dot { width: 5px; height: 5px; border-radius: 50%; background: #f59e0b; animation: availability-pulse 1.5s ease-in-out infinite; }

.project-body {
  padding: var(--space-lg);
  display: flex; flex-direction: column; flex: 1; gap: var(--space-sm);
}
.project-title { font-size: 17px; font-weight: 700; color: var(--text-primary); line-height: 1.3; }
.project-desc  { font-size: 14px; color: var(--text-muted); line-height: 1.7; flex: 1; }

.project-features { display: flex; flex-direction: column; gap: 5px; margin: var(--space-xs) 0; }
.project-feature  { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--text-secondary); }
.project-feature::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--accent-primary); flex-shrink: 0; }

.project-tech { display: flex; flex-wrap: wrap; gap: 6px; margin-top: var(--space-xs); }

.project-actions { display: flex; gap: var(--space-sm); padding: 0 var(--space-lg) var(--space-lg); margin-top: auto; }
.project-actions .btn { flex: 1; justify-content: center; font-size: 13px; padding: 8px 14px; }

@media (max-width: 1024px) { .projects-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px)  { .projects-grid { grid-template-columns: 1fr; } .project-actions { flex-direction: column; } }