/* ============================================================
   CASE STUDY — slide-in drawer panel
   ============================================================ */

/* ── Drawer overlay backdrop ── */
.cs-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  z-index: 200;
  pointer-events: none;
  transition: background 0.4s ease;
}

.cs-backdrop.open {
  background: rgba(0, 0, 0, 0.35);
  pointer-events: auto;
}

/* ── Full-page overlay panel ── */
.cs-drawer {
  position: fixed;
  inset: 0;
  background: #ffffff;
  z-index: 201;
  overflow-y: auto;
  overflow-x: hidden;
  transform: translateY(32px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
              opacity 0.35s ease;
  -webkit-overflow-scrolling: touch;
}

.cs-drawer.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

/* ── Floating top navigation bar — Apple liquid glass ── */
.cs-top-nav {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  z-index: 210;
  display: none;
  align-items: center;
  gap: 8px;
  /* Liquid glass */
  background: rgba(255, 255, 255, 0.52);
  -webkit-backdrop-filter: blur(32px) saturate(1.8) brightness(1.08);
  backdrop-filter: blur(32px) saturate(1.8) brightness(1.08);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-bottom-color: rgba(255, 255, 255, 0.3);
  border-radius: 100px;
  /* Specular top highlight + depth shadow */
  box-shadow:
    0 1.5px 0 rgba(255,255,255,0.95) inset,
    0 -0.5px 0 rgba(0,0,0,0.04) inset,
    0 8px 32px rgba(0,0,0,0.12),
    0 2px 8px rgba(0,0,0,0.06),
    0 0 0 0.5px rgba(0,0,0,0.04);
  padding: 6px 12px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
body.cs-overlay-open .cs-top-nav {
  display: flex;
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Dots on the left */
.cs-top-dots {
  display: flex;
  align-items: center;
  gap: 5px;
  padding-right: 8px;
  border-right: 1px solid rgba(0,0,0,0.08);
  flex-shrink: 0;
}

.cs-nav-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: rgba(0,0,0,0.18);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  flex-shrink: 0;
}
.cs-nav-dot.active { background: #111111; transform: scale(1.5); }
.cs-nav-dot:hover:not(.active) { background: rgba(0,0,0,0.4); }

/* Center: prev / title / next */
.cs-top-center {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
  min-width: 0;
}

.cs-top-title {
  font-size: 13px;
  font-weight: 600;
  color: #111111;
  padding: 0 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 160px;
}

.cs-top-arrow {
  width: 28px; height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: none;
  background: none;
  cursor: pointer;
  color: #111111;
  transition: background 0.15s, opacity 0.15s, transform 0.18s cubic-bezier(0.34, 1.56, 0.64, 1);
  flex-shrink: 0;
}
.cs-top-arrow svg { width: 13px; height: 13px; }
.cs-top-arrow:hover:not(:disabled) {
  background: rgba(0,0,0,0.07);
  transform: scale(1.1);
}
.cs-top-arrow:active:not(:disabled) {
  transform: scale(0.88);
  background: rgba(0,0,0,0.12);
  transition: transform 0.08s ease, background 0.08s ease;
}
.cs-top-arrow:disabled { opacity: 0.22; cursor: default; }

/* Separate floating close button — top right, outside the pill */
.cs-close-btn {
  position: fixed;
  top: 14px;
  right: 20px;
  z-index: 210;
  display: none;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-bottom-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.52);
  -webkit-backdrop-filter: blur(32px) saturate(1.8) brightness(1.08);
  backdrop-filter: blur(32px) saturate(1.8) brightness(1.08);
  box-shadow:
    0 1.5px 0 rgba(255,255,255,0.95) inset,
    0 -0.5px 0 rgba(0,0,0,0.04) inset,
    0 8px 32px rgba(0,0,0,0.12),
    0 2px 8px rgba(0,0,0,0.06),
    0 0 0 0.5px rgba(0,0,0,0.04);
  cursor: pointer;
  color: #111111;
  opacity: 0;
  transform: scale(0.8) translateY(-4px);
  transition: opacity 0.3s ease,
              transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
              background 0.15s ease,
              box-shadow 0.15s ease;
}
.cs-close-btn svg { width: 14px; height: 14px; }
.cs-close-btn:hover {
  background: rgba(255,255,255,0.72);
  transform: scale(1.08) translateY(0);
  box-shadow:
    0 1.5px 0 rgba(255,255,255,0.95) inset,
    0 -0.5px 0 rgba(0,0,0,0.04) inset,
    0 12px 40px rgba(0,0,0,0.16),
    0 2px 8px rgba(0,0,0,0.08);
}
.cs-close-btn:active {
  transform: scale(0.9) translateY(0);
  transition: transform 0.08s ease, background 0.08s ease;
  background: rgba(255,255,255,0.4);
}
body.cs-overlay-open .cs-close-btn {
  display: flex;
  opacity: 1;
  transform: scale(1) translateY(0);
}

/* ── Hero image / video ── */
.cs-hero {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  background: var(--surface);
}

.cs-hero-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--surface);
  overflow: hidden;
}

/* ── Content body ── */
.cs-body {
  padding: 48px 60px 100px;
  max-width: 1040px;
  margin: 0 auto;
}

/* ── Title block ── */
.cs-title-block {
  margin-bottom: 24px;
}

.cs-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  margin-bottom: 12px;
}

.cs-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.cs-badge.shipped  .dot { background: #22C55E; }
.cs-badge.progress .dot { background: #3B82F6; animation: pulse 2s infinite; }

.cs-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: 8px;
}

.cs-subtitle {
  font-size: var(--size-base);
  color: var(--text-muted);
  max-width: 52ch;
  line-height: 1.5;
}

/* ── External links ── */
.cs-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 16px 0 28px;
}

.cs-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}

.cs-link:hover { background: var(--border); }

.cs-link svg {
  width: 10px;
  height: 10px;
  stroke: currentColor;
  flex-shrink: 0;
}

/* ── Metadata row ── */
.cs-meta {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 20px 16px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}

.cs-meta-item {}

.cs-meta-label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 4px;
}

.cs-meta-value {
  font-family: var(--font-display);
  font-size: var(--size-sm);
  font-weight: 600;
  line-height: 1.4;
  max-width: none;
}

/* ── Article sections ── */
.cs-section {
  margin-bottom: 52px;
}

.cs-section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.cs-section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.12;
  margin-bottom: 14px;
}

.cs-section p {
  font-size: var(--size-base);
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 14px;
  max-width: 58ch;
}

.cs-section p:last-child { margin-bottom: 0; }

/* ── Section image / media ── */
.cs-img {
  width: 100%;
  border-radius: 12px;
  display: block;
  margin: 24px 0;
  background: var(--surface);
}

.cs-img-caption {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: -16px;
  margin-bottom: 24px;
  padding: 0 2px;
  max-width: none;
}

/* ── Full-bleed section image ── */
.cs-img-full {
  width: calc(100% + 120px);
  margin-left: -60px;
  margin-right: -60px;
  display: block;
  margin-top: 28px;
  margin-bottom: 28px;
  background: var(--surface);
}

/* ── Callout / highlight box ── */
.cs-callout {
  background: var(--surface);
  border-left: 3px solid var(--text);
  border-radius: 0 10px 10px 0;
  padding: 16px 20px;
  margin: 24px 0;
}

.cs-callout p {
  font-family: var(--font-display);
  font-size: var(--size-md);
  font-weight: 600;
  color: var(--text);
  margin: 0;
  line-height: 1.4;
  max-width: none;
}

/* ── Stats row ── */
.cs-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
  margin: 28px 0;
}

.cs-stat {
  background: var(--surface);
  border-radius: 12px;
  padding: 20px 16px;
}

.cs-stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 4px;
}

.cs-stat-label {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
  max-width: none;
}

/* ── Divider ── */
.cs-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

/* ── Dark mode ── */
[data-theme="dark"] .cs-drawer { background: #0a0a0a; }
[data-theme="dark"] .cs-top-nav {
  background: rgba(28, 28, 30, 0.68);
  border-color: rgba(255,255,255,0.14);
  border-bottom-color: rgba(255,255,255,0.06);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.10) inset,
    0 -0.5px 0 rgba(0,0,0,0.3) inset,
    0 8px 32px rgba(0,0,0,0.5),
    0 2px 8px rgba(0,0,0,0.3),
    0 0 0 0.5px rgba(255,255,255,0.04);
}
[data-theme="dark"] .cs-nav-dot { background: rgba(255,255,255,0.18); }
[data-theme="dark"] .cs-nav-dot.active { background: #ffffff; }
[data-theme="dark"] .cs-top-title { color: #ffffff; }
[data-theme="dark"] .cs-top-arrow { color: #ffffff; }
[data-theme="dark"] .cs-top-arrow:hover:not(:disabled) { background: rgba(255,255,255,0.1); }
[data-theme="dark"] .cs-close-btn {
  background: rgba(28,28,30,0.68);
  border-color: rgba(255,255,255,0.14);
  border-bottom-color: rgba(255,255,255,0.06);
  color: #ffffff;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.10) inset,
    0 -0.5px 0 rgba(0,0,0,0.3) inset,
    0 8px 32px rgba(0,0,0,0.5),
    0 2px 8px rgba(0,0,0,0.3);
}
[data-theme="dark"] .cs-close-btn:hover {
  background: rgba(50,50,52,0.82);
}
[data-theme="dark"] .cs-top-arrow { color: #ffffff; }
[data-theme="dark"] .cs-top-arrow:hover:not(:disabled) { background: rgba(255,255,255,0.1); }
[data-theme="dark"] .cs-top-dots { border-color: rgba(255,255,255,0.12); }

[data-theme="dark"] .cs-callout {
  border-left-color: var(--text);
}

/* ── Video wrapper ── */
.cs-video-wrap {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  margin: 24px 0;
  background: var(--surface);
}

.cs-video-wrap video {
  width: 100%;
  display: block;
}

.cs-video-wide {
  width: calc(100% + 80px);
  margin-left: -40px;
  margin-right: -40px;
  border-radius: 0;
}

/* ── Image grid ── */
.cs-img-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 24px 0;
}

.cs-img-grid .cs-img {
  margin: 0;
}

.cs-img-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

/* ── About me popup ── */
.about-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  z-index: 300;
  pointer-events: none;
  transition: background 0.3s ease;
}

.about-backdrop.open {
  background: rgba(0, 0, 0, 0.45);
  pointer-events: auto;
}

.about-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -46%) scale(0.95);
  opacity: 0;
  pointer-events: none;
  z-index: 301;
  background: var(--bg);
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.2);
  width: min(920px, calc(100vw - 48px));
  max-height: calc(100vh - 80px);
  overflow: hidden;
  transition: opacity 0.3s ease, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  display: flex;
  flex-direction: row;
}

.about-modal.open {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}

.about-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: background 0.15s, color 0.15s;
  z-index: 1;
}
.about-modal-close:hover { background: var(--border); color: var(--text); }
.about-modal-close svg { width: 12px; height: 12px; }

/* Sidebar (left) */
.about-modal-sidebar {
  width: 210px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
}

.about-modal-photo {
  flex: 1;
  overflow: hidden;
  min-height: 0;
}
.about-modal-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 18%;
  display: block;
}

.about-modal-sidebar-foot {
  padding: 16px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.about-modal-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 3px;
}

.about-modal-role {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.about-modal-links {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.about-modal-link {
  font-size: 11px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  transition: background 0.15s;
}
.about-modal-link:hover { background: var(--border); }

/* Scrollable body (right) */
.about-modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 28px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-width: 0;
}

.about-modal-bio {
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-muted);
}

.about-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.about-section-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.about-now-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.about-now-item {
  font-size: 13px;
  line-height: 1.55;
  color: var(--text);
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.about-tag {
  font-size: 12px;
  font-weight: 500;
  padding: 5px 12px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}

.about-tag-company {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px 5px 8px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  transition: background 0.15s;
}
.about-tag-company:hover { background: var(--border); }
.about-tag-company img { width: 16px; height: 16px; border-radius: 3px; }

.about-tag-scad {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px 5px 8px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.about-tag-scad img { width: 16px; height: 16px; border-radius: 3px; display: block; }

[data-theme="dark"] .about-modal { background: #1A1A1A; }


/* ── Responsive ── */
@media (max-width: 600px) {
  .about-modal { flex-direction: column; }
  .about-modal-photo { width: 100%; height: 180px; }
  .cs-body { padding: 24px 20px 60px; }
  .cs-img-full {
    width: calc(100% + 40px);
    margin-left: -20px;
    margin-right: -20px;
  }
  .cs-video-wide {
    width: calc(100% + 40px);
    margin-left: -20px;
    margin-right: -20px;
  }
  .cs-meta { grid-template-columns: 1fr 1fr; }
  .cs-img-grid { grid-template-columns: 1fr; }
}