/* ==========================================================================
   ZINOO PORTFOLIO - PROJECT DETAILS & CASE STUDY DESIGN SYSTEM
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. PAGE BODY & MAIN WRAPPER
   -------------------------------------------------------------------------- */
.detail-page-body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  font-family: var(--font-main);
  padding-bottom: var(--space-6);
}

.detail-main-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(80px + var(--space-4)) var(--space-3) var(--space-5);
  position: relative;
  z-index: 2;
}

/* --------------------------------------------------------------------------
   2. STICKY TOP NAVIGATION BAR
   -------------------------------------------------------------------------- */
.detail-top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: var(--bg-sidebar);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav-container {
  max-width: 1300px;
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.nav-left {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.back-portfolio-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-medium);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  font-size: 0.86rem;
  font-weight: 600;
  transition: all var(--dur-fast) var(--ease-out);
}

.back-portfolio-btn i {
  font-size: 1.1rem;
  color: var(--primary-color);
  transition: transform var(--dur-fast) var(--ease-spring);
}

.back-portfolio-btn:hover {
  background: rgba(var(--primary-rgb), 0.12);
  border-color: rgba(var(--primary-rgb), 0.45);
  color: var(--primary-color);
  transform: translateX(-3px);
}

.back-portfolio-btn:hover i {
  transform: translateX(-3px);
}

.nav-divider {
  width: 1px;
  height: 24px;
  background: var(--border-subtle);
}

.nav-brand {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-primary);
  text-decoration: none;
  cursor: pointer;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.nav-brand:hover {
  opacity: 0.85;
}

.nav-brand i { color: var(--primary-color); }
.nav-brand span { color: var(--primary-color); }
.nav-brand .brand-sub {
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  font-weight: 600;
  margin-left: 6px;
}

.nav-center {
  display: flex;
  align-items: center;
}

.project-switcher-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 4px 14px;
}

.switcher-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.switcher-label i {
  color: var(--primary-color);
}

.project-dropdown {
  background: transparent;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  max-width: 260px;
  text-overflow: ellipsis;
  outline: none;
}

.project-dropdown option {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  padding: 10px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.prev-next-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: 3px;
}

.nav-step-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
}

.nav-step-btn:hover {
  background: rgba(var(--primary-rgb), 0.15);
  color: var(--primary-color);
}

.nav-hire-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: var(--primary-color);
  color: #0d1117;
  font-size: 0.84rem;
  font-weight: 700;
  transition: all var(--dur-fast) var(--ease-out);
}

.nav-hire-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(var(--primary-rgb), 0.4);
}

/* --------------------------------------------------------------------------
   3. HERO SECTION & META
   -------------------------------------------------------------------------- */
.detail-hero-section {
  margin-bottom: var(--space-5);
}

.detail-hero-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.detail-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.category-pill, .role-pill, .year-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 600;
}

.category-pill {
  background: rgba(var(--primary-rgb), 0.12);
  border: 1px solid rgba(var(--primary-rgb), 0.35);
  color: var(--primary-text);
  font-weight: 700;
}

.role-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.year-pill {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.detail-title {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.8px;
  color: var(--text-primary);
  margin-top: 4px;
}

.detail-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 900px;
}

/* Action Links */
.detail-action-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-2) 0 var(--space-3);
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-spring);
}

.action-btn.primary-action {
  background: var(--primary-color);
  color: #0b0d10;
  box-shadow: 0 8px 24px rgba(var(--primary-rgb), 0.28);
}

.action-btn.primary-action:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(var(--primary-rgb), 0.45);
}

.action-btn.secondary-action {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
}

.action-btn.secondary-action:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(var(--primary-rgb), 0.4);
  color: var(--primary-color);
  transform: translateY(-3px);
}

.action-btn.icon-action {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 12px 20px;
}

.action-btn.icon-action:hover {
  color: var(--primary-color);
  border-color: rgba(var(--primary-rgb), 0.3);
  background: rgba(var(--primary-rgb), 0.08);
}

/* --------------------------------------------------------------------------
   4. METRICS HIGHLIGHTS GRID
   -------------------------------------------------------------------------- */
.detail-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  transition: all var(--dur-fast) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), transparent);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.metric-card:hover {
  border-color: rgba(var(--primary-rgb), 0.35);
  background: var(--bg-surface-hover);
  transform: translateY(-3px);
}

.metric-card:hover::before {
  opacity: 1;
}

.metric-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-text);
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.metric-label {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 4px;
}

.metric-desc {
  font-size: 0.74rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   5. MEDIA SHOWCASE
   -------------------------------------------------------------------------- */
.detail-media-showcase {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  margin-bottom: var(--space-5);
}

.media-window-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-input);
  border-bottom: 1px solid var(--border-subtle);
}

.window-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.window-url {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  padding: 3px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  max-width: 400px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.window-status {
  font-size: 0.74rem;
  color: var(--primary-color);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
}

.media-frame {
  position: relative;
  width: 100%;
  max-height: 540px;
  overflow: hidden;
  background: var(--bg-dark);
}

.hero-img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.media-overlay-zoom {
  position: absolute;
  bottom: var(--space-2);
  right: var(--space-2);
  z-index: 10;
}

.zoom-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: var(--bg-sidebar);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 0.8rem;
  font-weight: 600;
  transition: all var(--dur-fast) var(--ease-out);
}

.zoom-btn:hover {
  background: rgba(var(--primary-rgb), 0.2);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* --------------------------------------------------------------------------
   6. INTERACTIVE CASE STUDY TABS
   -------------------------------------------------------------------------- */
.detail-tabs-section {
  margin-bottom: var(--space-6);
}

.tabs-nav-bar {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs-nav-bar::-webkit-scrollbar {
  display: none;
}

.tab-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.94rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
  white-space: nowrap;
  position: relative;
}

.tab-nav-btn i {
  font-size: 1.15rem;
}

.tab-nav-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
}

.tab-nav-btn.active {
  color: var(--primary-color);
  background: rgba(var(--primary-rgb), 0.06);
}

.tab-nav-btn.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-color);
  border-radius: 3px 3px 0 0;
  box-shadow: 0 -2px 10px var(--primary-color);
}

.tabs-content-wrap {
  padding-top: var(--space-4);
}

.tab-pane {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Section Intro */
.section-intro {
  margin-bottom: var(--space-4);
}

.intro-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  background: rgba(var(--primary-rgb), 0.1);
  border: 1px solid rgba(var(--primary-rgb), 0.25);
  color: var(--primary-text);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.intro-title {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.4px;
}

.intro-desc {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 850px;
  margin-top: 6px;
}

/* --------------------------------------------------------------------------
   7. ADVANTAGES CARDS GRID (TECH & UI/UX)
   -------------------------------------------------------------------------- */
.advantages-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.advantage-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: all var(--dur-normal) var(--ease-spring);
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary-color);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.advantage-card:hover {
  background: var(--bg-surface-hover);
  border-color: rgba(var(--primary-rgb), 0.4);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.advantage-card:hover::before {
  opacity: 1;
}

.card-header-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.card-icon-box {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: rgba(var(--primary-rgb), 0.12);
  border: 1px solid rgba(var(--primary-rgb), 0.28);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  transition: all var(--dur-fast) var(--ease-spring);
}

.advantage-card:hover .card-icon-box {
  transform: scale(1.1) rotate(-4deg);
  background: var(--primary-color);
  color: #0b0d10;
}

.card-titles {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.card-title-en {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.card-title-mm {
  font-size: 0.85rem;
  color: var(--primary-text);
  font-weight: 600;
  line-height: 1.4;
}

.card-desc-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
}

.card-desc-en {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.card-desc-mm {
  font-size: 0.84rem;
  color: #a2a8ba;
  line-height: 1.65;
  background: rgba(255, 255, 255, 0.025);
  padding: 8px 12px;
  border-radius: var(--radius-xs);
  border-left: 2px solid rgba(var(--primary-rgb), 0.5);
}

/* --------------------------------------------------------------------------
   8. ARCHITECTURE CALLOUT BOX & DESIGN TOKENS
   -------------------------------------------------------------------------- */
.architecture-callout-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  margin-top: var(--space-4);
}

.callout-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: var(--space-2);
}

.callout-header i {
  font-size: 1.8rem;
  color: var(--primary-color);
}

.callout-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.callout-sub {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.design-tokens-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
}

.token-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: var(--space-2);
}

.token-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary-text);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.token-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   9. OVERVIEW MODULES GRID
   -------------------------------------------------------------------------- */
.modules-section {
  margin-top: var(--space-4);
}

.modules-heading {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: 8px;
}

.modules-heading i { color: var(--primary-color); }

.modules-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
}

.module-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  transition: all var(--dur-fast) var(--ease-out);
}

.module-card:hover {
  border-color: rgba(var(--primary-rgb), 0.35);
  background: var(--bg-surface-hover);
  transform: translateY(-2px);
}

.module-name {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.module-name::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--primary-color);
  border-radius: 50%;
  display: inline-block;
}

.module-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin-top: 6px;
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   10. TECH STACK CATEGORIES GRID
   -------------------------------------------------------------------------- */
.stack-categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.stack-category-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.stack-category-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary-text);
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  gap: 8px;
}

.stack-pills-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stack-pill-item {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: all var(--dur-fast) var(--ease-out);
}

.stack-pill-item:hover {
  border-color: rgba(var(--primary-rgb), 0.4);
  background: rgba(var(--primary-rgb), 0.1);
  color: var(--primary-color);
}

/* --------------------------------------------------------------------------
   11. BOTTOM NAVIGATION FOOTER
   -------------------------------------------------------------------------- */
.detail-bottom-nav {
  margin-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-5);
}

.bottom-nav-inner {
  display: grid;
  grid-template-columns: 280px 1fr 280px;
  gap: var(--space-4);
  align-items: center;
}

.bottom-prev, .bottom-next {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bottom-next {
  align-items: flex-end;
  text-align: right;
}

.nav-direction-label {
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.bottom-project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-spring);
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bottom-project-link:hover {
  background: rgba(var(--primary-rgb), 0.12);
  border-color: rgba(var(--primary-rgb), 0.4);
  color: var(--primary-color);
  transform: translateY(-2px);
}

.bottom-cta-box {
  text-align: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

.cta-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
}

.cta-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin: 4px 0 var(--space-2);
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 22px;
  border-radius: var(--radius-pill);
  background: var(--primary-color);
  color: #0b0d10;
  font-size: 0.85rem;
  font-weight: 700;
  transition: all var(--dur-fast) var(--ease-out);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(var(--primary-rgb), 0.4);
}

/* --------------------------------------------------------------------------
   12. TOAST NOTIFICATION
   -------------------------------------------------------------------------- */
.toast-notify {
  position: fixed;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-sidebar);
  backdrop-filter: blur(16px);
  border: 1px solid var(--primary-color);
  color: var(--text-primary);
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: var(--shadow-card), 0 0 20px rgba(var(--primary-rgb), 0.3);
  z-index: 9999;
  opacity: 0;
  transition: all 0.35s var(--ease-spring);
  pointer-events: none;
}

.toast-notify.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast-notify i {
  color: var(--primary-color);
  font-size: 1.2rem;
}

/* --------------------------------------------------------------------------
   13. IN-PAGE QUICK-VIEW MODAL (Used in index.html)
   -------------------------------------------------------------------------- */
.project-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 7, 10, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-normal) var(--ease-out);
}

.project-modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.project-modal-window {
  background: var(--bg-sidebar);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  max-width: 860px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7), 0 0 40px rgba(var(--primary-rgb), 0.15);
  transform: scale(0.94) translateY(20px);
  transition: transform var(--dur-normal) var(--ease-spring);
  position: relative;
  display: flex;
  flex-direction: column;
}

.project-modal-backdrop.open .project-modal-window {
  transform: scale(1) translateY(0);
}

.modal-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  background: var(--bg-sidebar);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 20;
  flex-shrink: 0;
}

.modal-badge-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.modal-close-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all var(--dur-fast) var(--ease-out);
}

.modal-close-btn:hover {
  background: rgba(255, 71, 87, 0.15);
  border-color: #ff4757;
  color: #ff4757;
  transform: rotate(90deg);
}

.modal-body-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-title {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.25;
  word-break: break-word;
  margin: 0;
}

.modal-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin: 0;
}

.modal-footer-bar {
  padding: 16px 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--bg-input);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  flex-shrink: 0;
}

.modal-footer-left {
  display: flex;
  align-items: center;
}

.modal-footer-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-action {
  font-size: 0.85rem;
}

#modal-full-case-btn {
  padding: 10px 20px;
}

#modal-demo-btn {
  padding: 10px 18px;
}

#modal-repo-btn {
  padding: 10px 16px;
}

/* --------------------------------------------------------------------------
   14. RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .advantages-cards-grid {
    grid-template-columns: 1fr;
  }
  .stack-categories-grid {
    grid-template-columns: 1fr;
  }
  .detail-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .design-tokens-grid {
    grid-template-columns: 1fr;
  }
  .bottom-nav-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .bottom-next {
    align-items: center;
    text-align: center;
  }
  .bottom-prev {
    align-items: center;
  }
  .project-dropdown {
    max-width: 180px;
  }
}

@media (max-width: 768px) {
  .detail-title {
    font-size: 1.85rem;
  }
  .detail-subtitle {
    font-size: 0.95rem;
  }
  .modules-grid {
    grid-template-columns: 1fr;
  }
  .nav-center {
    display: none;
  }
  .nav-brand .brand-sub {
    display: none;
  }
  .tab-nav-btn {
    padding: 10px 14px;
    font-size: 0.84rem;
  }
  /* Tighten nav on tablet */
  .back-portfolio-btn {
    padding: 7px 12px;
    font-size: 0.82rem;
  }
  .nav-hire-btn {
    padding: 7px 13px;
    font-size: 0.8rem;
  }
  
  /* ── Modal fixes on tablet ── */
  .project-modal-backdrop {
    padding: 16px;
  }
  .modal-header-bar {
    padding: 14px 18px;
  }
  .modal-body-content {
    padding: 18px;
    gap: 14px;
  }
  .modal-title {
    font-size: 1.45rem;
  }
  .modal-subtitle {
    font-size: 0.9rem;
  }
  .modal-footer-bar {
    flex-direction: column;
    gap: 12px;
    align-items: stretch;
    padding: 14px 18px;
  }
  .modal-footer-left,
  .modal-footer-right {
    width: 100%;
    display: flex;
    gap: 8px;
  }
  .modal-footer-left .action-btn {
    width: 100%;
    justify-content: center;
  }
  .modal-footer-right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .modal-footer-right .action-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  /* ── Nav bar fixes ── */
  .detail-top-nav {
    height: 56px;
  }
  .detail-main-wrap {
    padding-top: calc(56px + 14px);
    padding-left: 14px;
    padding-right: 14px;
  }
  .nav-container {
    padding: 0 10px;
    gap: 8px;
  }
  .nav-left {
    gap: 8px;
    flex-shrink: 0;
  }
  /* Show only the arrow icon in a round circular button */
  .back-portfolio-btn span {
    display: none;
  }
  .back-portfolio-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
  }
  .back-portfolio-btn i {
    font-size: 1.15rem;
  }
  /* Hide the brand completely on very small screens */
  .nav-divider,
  .nav-brand {
    display: none;
  }
  /* Shrink prev/next buttons */
  .nav-step-btn .step-label {
    display: none;
  }
  .nav-step-btn {
    padding: 6px 9px;
  }
  .prev-next-nav {
    gap: 2px;
  }
  /* Shrink hire button to circular icon button */
  .nav-hire-btn span {
    display: none;
  }
  .nav-hire-btn {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
  }
  .nav-right {
    gap: 8px;
    flex-shrink: 0;
  }

  /* ── Hero section fixes ── */
  .detail-title {
    font-size: 1.45rem;
    line-height: 1.25;
  }
  .detail-subtitle {
    font-size: 0.86rem;
    line-height: 1.5;
  }
  .detail-meta-row {
    gap: 6px;
  }
  .category-pill,
  .role-pill,
  .year-pill {
    font-size: 0.7rem;
    padding: 4px 8px;
  }
  .detail-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 16px;
  }
  .metric-card {
    padding: 10px 12px;
  }
  .metric-value {
    font-size: 1.3rem;
  }
  .metric-label {
    font-size: 0.76rem;
  }
  .metric-desc {
    font-size: 0.68rem;
    line-height: 1.3;
  }
  .detail-action-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 10px 0 16px;
  }
  .action-btn {
    padding: 10px 14px;
    font-size: 0.82rem;
  }
  .action-btn.primary-action {
    width: 100%;
    justify-content: center;
  }
  .action-btn.secondary-action,
  .action-btn.icon-action {
    flex: 1;
    min-width: 110px;
    justify-content: center;
  }
  /* Window bar on media showcase */
  .detail-media-showcase {
    border-radius: 12px;
    margin-bottom: 20px;
  }
  .media-window-bar {
    padding: 8px 12px;
  }
  .window-url {
    display: none;
  }
  .window-status {
    display: none;
  }
  .zoom-btn {
    padding: 5px 10px;
    font-size: 0.72rem;
  }
  
  /* Tabs on mobile */
  .tabs-nav-bar {
    gap: 4px;
  }
  .tab-nav-btn {
    padding: 10px 12px;
    font-size: 0.8rem;
    gap: 6px;
  }
  .tab-nav-btn i {
    font-size: 1rem;
  }
  .section-intro {
    margin-bottom: 14px;
  }
  .intro-badge {
    font-size: 0.7rem;
    padding: 3px 8px;
  }
  .intro-title {
    font-size: 1.25rem;
    line-height: 1.3;
  }
  .intro-desc {
    font-size: 0.82rem;
    line-height: 1.55;
  }
  .advantage-card {
    padding: 12px;
    border-radius: 10px;
  }
  .card-icon-box {
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
  }
  .card-title-en {
    font-size: 0.92rem;
  }
  .card-title-mm {
    font-size: 0.8rem;
  }
  .card-desc-en {
    font-size: 0.82rem;
  }
  .card-desc-mm {
    font-size: 0.78rem;
    padding: 6px 10px;
  }
  .architecture-callout-box {
    padding: 12px;
    border-radius: 10px;
  }
  .callout-header i {
    font-size: 1.4rem;
  }
  .callout-title {
    font-size: 0.95rem;
  }
  .callout-sub {
    font-size: 0.74rem;
  }
  .design-tokens-grid {
    gap: 6px;
  }
  .token-card {
    padding: 8px 10px;
  }
  .token-title {
    font-size: 0.8rem;
  }
  .token-text {
    font-size: 0.74rem;
  }
  .modules-heading {
    font-size: 1.1rem;
  }
  .module-card {
    padding: 10px 12px;
  }
  .module-name {
    font-size: 0.86rem;
  }
  .module-desc {
    font-size: 0.76rem;
  }
  .stack-category-card {
    padding: 12px;
    border-radius: 10px;
  }
  .category-name {
    font-size: 0.9rem;
  }
  .category-badge-count {
    font-size: 0.68rem;
    padding: 2px 6px;
  }
  .stack-pill-item {
    font-size: 0.74rem;
    padding: 4px 8px;
  }
  
  /* Bottom CTA & links on mobile */
  .detail-bottom-nav {
    margin-top: 24px;
  }
  .bottom-nav-inner {
    gap: 14px;
  }
  .bottom-prev,
  .bottom-next {
    width: 100%;
    align-items: stretch;
    text-align: center;
  }
  .bottom-project-link {
    width: 100%;
    justify-content: center;
    padding: 10px 14px;
    font-size: 0.82rem;
  }
  .bottom-cta-box {
    padding: 16px 12px;
    border-radius: 12px;
  }
  .cta-title {
    font-size: 1.05rem;
  }
  .cta-text {
    font-size: 0.8rem;
  }
  .cta-btn {
    width: 100%;
    justify-content: center;
    padding: 10px 16px;
    font-size: 0.84rem;
  }
  
  /* ── Modal fixes on mobile ── */
  .project-modal-backdrop {
    padding: 8px;
  }
  .project-modal-window {
    max-height: 92vh;
    border-radius: 16px;
  }
  .modal-header-bar {
    padding: 10px 14px;
    gap: 8px;
  }
  .modal-badge-group {
    gap: 6px;
  }
  .modal-badge-group .category-pill,
  .modal-badge-group .year-pill {
    font-size: 0.7rem;
    padding: 3px 8px;
  }
  .modal-close-btn {
    width: 32px;
    height: 32px;
    font-size: 1.1rem;
  }
  .modal-body-content {
    padding: 14px;
    gap: 12px;
  }
  .modal-title {
    font-size: 1.25rem;
    line-height: 1.3;
  }
  .modal-subtitle {
    font-size: 0.82rem;
    line-height: 1.45;
  }
  #modal-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  #modal-metrics-grid .metric-card {
    padding: 8px 10px;
  }
  #modal-metrics-grid .metric-value {
    font-size: 1.2rem;
  }
  #modal-metrics-grid .metric-label {
    font-size: 0.74rem;
  }
  #modal-metrics-grid .metric-desc {
    font-size: 0.66rem;
    line-height: 1.3;
  }
  .modal-footer-bar {
    padding: 12px 14px;
    border-radius: 0 0 16px 16px;
    gap: 8px;
  }
  .modal-action {
    padding: 9px 12px;
    font-size: 0.8rem;
  }
  
  /* Color switcher on detail page */
  .detail-page-body .color-switcher {
    bottom: 16px;
    left: 12px;
  }
  .detail-page-body .switcher-panel {
    bottom: 48px;
    left: 0;
  }
}

/* --------------------------------------------------------------------------
   PROJECT DETAILS ACCESSIBILITY & FOCUS VISIBLE (WCAG 2.4.7)
   -------------------------------------------------------------------------- */
.back-portfolio-btn:focus-visible,
.nav-project-btn:focus-visible,
.tab-nav-btn:focus-visible,
.action-btn:focus-visible,
.bottom-project-link:focus-visible,
.project-select-dropdown:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.25);
}

/* --------------------------------------------------------------------------
   PREFERS REDUCED MOTION (WCAG 2.2 / 2.3.3)
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .tab-pane {
    animation: none !important;
  }
}

/* --------------------------------------------------------------------------
   LIGHT MODE OVERRIDES FOR PROJECT DETAILS
   -------------------------------------------------------------------------- */
[data-theme="light"] {
  --primary-text: var(--primary-text-light, #047857);
}

[data-theme="light"] .category-pill,
[data-theme="light"] .intro-badge {
  background: rgba(var(--primary-rgb), 0.16);
  border-color: rgba(var(--primary-rgb), 0.45);
  color: var(--primary-text);
  font-weight: 700;
}

[data-theme="light"] .detail-top-nav {
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--border-medium);
}

[data-theme="light"] .back-portfolio-btn,
[data-theme="light"] .project-switcher-wrap,
[data-theme="light"] .prev-next-nav {
  background: #ffffff;
  border-color: var(--border-medium);
}

[data-theme="light"] .project-dropdown option {
  background-color: #ffffff;
  color: var(--text-primary);
}

[data-theme="light"] .detail-media-showcase {
  background: #ffffff;
  border-color: var(--border-medium);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
}

[data-theme="light"] .media-window-bar {
  background: #f8fafc;
  border-bottom-color: var(--border-subtle);
}

[data-theme="light"] .window-url {
  background: #ffffff;
  border-color: var(--border-medium);
  color: var(--text-secondary);
}

[data-theme="light"] .media-frame {
  background: #f1f5f9;
}

[data-theme="light"] .zoom-btn {
  background: rgba(255, 255, 255, 0.92);
  border-color: var(--border-medium);
  color: var(--text-primary);
}

[data-theme="light"] .tab-nav-btn {
  color: var(--text-secondary);
}

[data-theme="light"] .tab-nav-btn:hover {
  color: var(--text-primary);
  background: #f1f5f9;
}

[data-theme="light"] .tab-nav-btn.active {
  color: var(--primary-text);
  background: rgba(var(--primary-rgb), 0.12);
}

[data-theme="light"] .card-desc-mm {
  background: #f8fafc;
  color: #475569;
  border-left-color: var(--primary-text);
}

[data-theme="light"] .architecture-callout-box,
[data-theme="light"] .bottom-cta-box,
[data-theme="light"] .metric-card,
[data-theme="light"] .advantage-card,
[data-theme="light"] .module-card,
[data-theme="light"] .stack-category-card {
  background: #ffffff;
  border-color: var(--border-subtle);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

[data-theme="light"] .token-card,
[data-theme="light"] .stack-pill-item,
[data-theme="light"] .bottom-project-link {
  background: #f8fafc;
  border-color: var(--border-subtle);
}

[data-theme="light"] .project-modal-backdrop {
  background: rgba(15, 23, 42, 0.6);
}

[data-theme="light"] .project-modal-window {
  background: #ffffff;
  border-color: var(--border-medium);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.18);
}

[data-theme="light"] .modal-header-bar {
  background: rgba(255, 255, 255, 0.98);
}

[data-theme="light"] .modal-footer-bar {
  background: #f8fafc;
}

[data-theme="light"] .toast-notify {
  background: #ffffff;
  color: var(--text-primary);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}