/* ═══════════════════════════════════════════
   CASE STUDIES TIMELINE FEED STYLES
   ═══════════════════════════════════════════ */

.projects-body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  min-height: 100vh;
  margin: 0;
  padding: 0;
  transition: background-color 0.4s ease, color 0.4s ease;
  position: relative;
  overflow-x: hidden;
}

.projects-container {
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Header & Back Link */
.projects-header {
  padding: 24px 0;
}

.projects-back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

.projects-back-link:hover {
  color: var(--text);
  transform: translateX(-3px);
}

.projects-back-link svg {
  transition: transform 0.2s ease;
}

.projects-back-link:hover svg {
  transform: translateX(-2px);
}

/* Hero Section */
.projects-hero {
  margin-top: 32px;
  margin-bottom: 64px;
}

.projects-hero__label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  display: block;
  margin-bottom: 8px;
}

[data-theme="dark"] .projects-hero__label {
  color: var(--accent);
}

.projects-hero__title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 16px 0;
}

.projects-hero__subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0;
  line-height: 1.5;
}

/* Vertical Timeline Feed */
.projects-feed {
  position: relative;
  padding-bottom: 120px;
}

/* Timeline Vertical Line (Track) */
.projects-feed::before {
  content: '';
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 20px;
  width: 1.5px;
  background-color: var(--border-strong);
  transition: background-color 0.4s ease;
}

/* Timeline Item Container */
.projects-timeline-item {
  position: relative;
  padding-left: 56px;
  margin-bottom: 72px;
  opacity: 0;
  transform: translateY(30px);
  animation: projectSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Animation Delays for Staggered Load */
.projects-timeline-item:nth-child(1) { animation-delay: 0.05s; }
.projects-timeline-item:nth-child(2) { animation-delay: 0.15s; }
.projects-timeline-item:nth-child(3) { animation-delay: 0.25s; }
.projects-timeline-item:nth-child(4) { animation-delay: 0.35s; }

/* Timeline Node Dot */
.projects-timeline-node {
  position: absolute;
  left: 20px;
  top: 36px;
  transform: translate(-50%, -50%);
  width: 11px;
  height: 11px;
  background-color: var(--text);
  border-radius: 50%;
  z-index: 2;
  box-shadow: 0 0 0 5px var(--bg);
  transition: background-color 0.4s ease, box-shadow 0.4s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

[data-theme="dark"] .projects-timeline-node {
  background-color: var(--accent);
}

.projects-timeline-item:hover .projects-timeline-node {
  transform: translate(-50%, -50%) scale(1.4);
  background-color: var(--accent);
  box-shadow: 0 0 0 6px var(--bg), 0 0 16px var(--accent-glow);
}

/* Timeline Card */
.projects-timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 36px;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.4s ease,
              border-color 0.4s ease,
              background-color 0.4s ease;
}

.projects-timeline-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px var(--accent-glow);
  border-color: var(--border-strong);
}

/* Card Year styling */
.projects-card-year {
  font-family: 'Bebas Neue', var(--font-sans);
  font-size: 2.2rem;
  line-height: 1;
  color: var(--text-subtle);
  margin-bottom: 12px;
  letter-spacing: 0.05em;
  transition: color 0.4s ease;
}

.projects-timeline-card:hover .projects-card-year {
  color: var(--accent);
}

/* Card Content Details */
.projects-card-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.projects-card-title {
  font-size: 1.6rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.projects-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.projects-card-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0 0 24px 0;
}

/* Image Mockup Styling */
.projects-card-img-wrapper {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  overflow: hidden;
  position: relative;
  aspect-ratio: 1.8 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.4s ease, background-color 0.4s ease;
}

.projects-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s var(--ease);
}

.projects-timeline-card:hover .projects-card-img {
  transform: scale(1.03);
}

.projects-card-img-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  left: -150%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.28),
    transparent
  );
  transform: skewX(-20deg);
  pointer-events: none;
  z-index: 2;
}

.projects-timeline-card:hover .projects-card-img-wrapper::after {
  left: 150%;
  transition: left 0.85s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Card Footer */
.projects-card-footer {
  margin-top: 24px;
}

.projects-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  transition: color 0.25s ease;
}

.projects-card-link:hover {
  color: var(--accent);
}

.projects-card-link .arrow {
  transition: transform 0.25s var(--ease);
}

.projects-card-link:hover .arrow {
  transform: translateX(4px);
}

/* Toast Notifications */
.projects-toast-container {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}

.projects-toast {
  pointer-events: auto;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 14px 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  animation: toastEnter 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.projects-toast.fade-out {
  opacity: 0;
  transform: translateY(-10px) scale(0.95);
}

.projects-toast svg {
  color: var(--accent);
  flex-shrink: 0;
}

@keyframes toastEnter {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes projectSlideUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Media Queries */
@media (max-width: 768px) {
  .projects-hero {
    margin-bottom: 48px;
  }

  .projects-timeline-card {
    padding: 24px;
    border-radius: 20px;
  }

  .projects-card-title {
    font-size: 1.4rem;
  }

  .projects-card-desc {
    font-size: 0.9rem;
    margin-bottom: 20px;
  }

  .projects-card-img-wrapper {
    aspect-ratio: 1.6 / 1;
  }
}

@media (max-width: 600px) {
  .projects-container {
    padding: 0 16px;
  }

  .projects-feed::before {
    left: 12px;
  }

  .projects-timeline-node {
    left: 12px;
  }

  .projects-timeline-item {
    padding-left: 36px;
    margin-bottom: 48px;
  }

  .projects-card-year {
    font-size: 1.8rem;
  }

  .projects-toast-container {
    left: 16px;
    right: 16px;
    bottom: 24px;
  }
}