/* ==========================================================================
   AfK & Co. × BALORMAN INT — Luxury Architectural RTA Furniture Design System
   100% Self-Contained CSS Architecture (Zero External Runtime Dependencies)
   ========================================================================== */

:root,
html[data-theme="light"] {
  --bg-primary: #FAF8F5;
  --bg-secondary: #F2EFE9;
  --bg-tertiary: #E8E3DA;
  --bg-elevated: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.94);
  --bg-dark-surface: #12151C;
  --bg-dark-elevated: #1B202B;

  --text-primary: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  --text-on-dark: #F8FAFC;
  --text-on-dark-muted: #CBD5E1;

  --accent-crimson: #B8232A;
  --accent-crimson-hover: #961B21;
  --accent-crimson-soft: #FEF2F2;
  --accent-crimson-border: #FECACA;

  --accent-amber: #92400E;
  --accent-amber-soft: #FEF3C7;
  --accent-amber-border: #FDE68A;

  --accent-emerald: #065F46;
  --accent-emerald-soft: #ECFDF5;
  --accent-emerald-border: #A7F3D0;

  --border-subtle: #E2DDD5;
  --border-strong: #CBD5E1;
  --border-dark: rgba(255, 255, 255, 0.12);

  --shadow-xs: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 12px 32px -4px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 48px -12px rgba(15, 23, 42, 0.15);

  --font-serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
}

html[data-theme="dark"] {
  --bg-primary: #0B0D11;
  --bg-secondary: #12161F;
  --bg-tertiary: #1B202C;
  --bg-elevated: #161A23;
  --bg-glass: rgba(18, 22, 31, 0.94);
  --bg-dark-surface: #080A0E;
  --bg-dark-elevated: #141821;

  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #94A3B8;

  --accent-crimson: #E11D48;
  --accent-crimson-hover: #BE123C;
  --accent-crimson-soft: rgba(225, 29, 72, 0.15);
  --accent-crimson-border: rgba(225, 29, 72, 0.35);

  --accent-amber: #FBBF24;
  --accent-amber-soft: rgba(245, 158, 11, 0.15);
  --accent-amber-border: rgba(245, 158, 11, 0.35);

  --accent-emerald: #34D399;
  --accent-emerald-soft: rgba(16, 185, 129, 0.15);
  --accent-emerald-border: rgba(16, 185, 129, 0.35);

  --border-subtle: #262C3A;
  --border-strong: #374151;

  --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 12px 32px -4px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.7);
}

/* ==========================================================================
   1. BASE RESET & ELEMENT DEFAULTS
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

body, h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote, dl, dd {
  margin: 0;
}

ul, ol {
  padding: 0;
  list-style: none;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 104px;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  transition: background-color 0.25s ease, color 0.25s ease;
}

img, picture, video, canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

svg {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

/* Focus Ring Accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[role="button"]:focus-visible {
  outline: 2px solid var(--accent-crimson);
  outline-offset: 2px;
}

/* ==========================================================================
   2. LAYOUT CONTAINERS & SECTIONS
   ========================================================================== */
.site-container {
  width: 100%;
  max-width: 1320px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

@media (min-width: 640px) {
  .site-container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

@media (min-width: 1024px) {
  .site-container {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
  }
}

.section-block {
  padding-top: 5rem;
  padding-bottom: 5rem;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}

@media (min-width: 1024px) {
  .section-block {
    padding-top: 6.5rem;
    padding-bottom: 6.5rem;
  }
}

.section-alt {
  background-color: var(--bg-secondary);
}

.section-dark {
  background-color: var(--bg-dark-surface);
  color: var(--text-on-dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-section {
  position: relative;
  padding-top: 7.75rem;
  padding-bottom: 4.5rem;
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
  background-image:
    linear-gradient(to right, rgba(148, 163, 184, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148, 163, 184, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
}

@media (min-width: 1024px) {
  .hero-section {
    padding-top: 8.75rem;
    padding-bottom: 5.5rem;
  }
}

.hero-bg-texture {
  position: absolute;
  inset: 0;
  opacity: 0.18;
  pointer-events: none;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

html[data-theme="dark"] .hero-bg-texture {
  opacity: 0.06;
}

/* ==========================================================================
   3. TYPOGRAPHY SYSTEM
   ========================================================================== */
.font-serif-display {
  font-family: var(--font-serif);
  letter-spacing: -0.015em;
  line-height: 1.12;
}

.font-mono-tech {
  font-family: var(--font-mono);
}

.eyebrow-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-crimson);
  margin-bottom: 0.65rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4.35rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.hero-title em {
  font-style: italic;
  font-weight: 500;
  color: var(--accent-crimson);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.6vw, 3.15rem);
  font-weight: 700;
  line-height: 1.12;
  color: inherit;
}

.section-lead {
  font-size: 1.025rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 68ch;
}

/* ==========================================================================
   4. FLOATING ARCHITECTURAL HEADER & NAVIGATION
   ========================================================================== */
.floating-header {
  position: fixed;
  top: 14px;
  left: 16px;
  right: 16px;
  z-index: 100;
  max-width: 1320px;
  margin: 0 auto;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
}

.floating-header.scrolled {
  box-shadow: var(--shadow-lg);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1.25rem;
}

.brand-logo-wrap {
  display: inline-flex;
  align-items: center;
  background: #FFFFFF;
  padding: 0.3rem 0.65rem;
  border-radius: 10px;
  border: 1px solid #E2E8F0;
  box-shadow: var(--shadow-xs);
  flex-shrink: 0;
}

.brand-logo-wrap img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

@media (min-width: 640px) {
  .brand-logo-wrap img {
    height: 44px;
  }
}

.primary-nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

@media (min-width: 1180px) {
  .primary-nav {
    display: flex;
  }
}

.nav-link {
  display: inline-flex;
  align-items: center;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-crimson);
  background-color: var(--accent-crimson-soft);
}

.header-actions {
  display: none;
  align-items: center;
  gap: 0.5rem;
}

@media (min-width: 960px) {
  .header-actions {
    display: flex;
  }
}

.pdf-nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 700;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.pdf-nav-pill svg {
  width: 15px;
  height: 15px;
  color: var(--accent-crimson);
}

.pdf-nav-pill:hover {
  border-color: var(--accent-crimson);
  background-color: var(--accent-crimson);
  color: #FFFFFF;
}

.pdf-nav-pill:hover svg {
  color: #FFFFFF;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  color: var(--text-primary);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.icon-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-crimson);
}

.mobile-triggers {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

@media (min-width: 1180px) {
  .mobile-triggers {
    display: none;
  }
}

.mobile-drawer {
  border-top: 1px solid var(--border-subtle);
  padding: 1.25rem;
  background: var(--bg-elevated);
  border-bottom-left-radius: 16px;
  border-bottom-right-radius: 16px;
}

.mobile-drawer.is-hidden {
  display: none !important;
}

.mobile-nav-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .mobile-nav-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.mobile-nav-grid .nav-link {
  justify-content: center;
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
}

/* ==========================================================================
   5. BUTTONS & INTERACTIVE CONTROLS
   ========================================================================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.85rem 1.5rem;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.9rem;
  background-color: var(--accent-crimson);
  color: #FFFFFF;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
}

.btn-primary:hover {
  background-color: var(--accent-crimson-hover);
  box-shadow: 0 8px 20px rgba(184, 35, 42, 0.28);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.85rem 1.5rem;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.9rem;
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.btn-secondary:hover {
  border-color: var(--text-primary);
  background-color: var(--bg-secondary);
}

.btn-sm {
  padding: 0.6rem 1rem;
  font-size: 0.8rem;
  border-radius: 8px;
}

/* Filter Pill Buttons */
.filter-btn {
  padding: 0.55rem 1.1rem;
  border-radius: 9999px;
  font-size: 0.82rem;
  font-weight: 700;
  border: 1px solid var(--border-strong);
  background-color: var(--bg-elevated);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-btn:hover {
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.filter-btn.active {
  background-color: var(--accent-crimson);
  color: #FFFFFF;
  border-color: var(--accent-crimson);
}

/* Unit Switcher Pill */
.unit-switcher {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem;
  border-radius: 9999px;
  border: 1px solid var(--border-strong);
  background-color: var(--bg-elevated);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.unit-btn {
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-weight: 700;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.unit-btn.active {
  background-color: var(--text-primary);
  color: var(--bg-primary);
}

/* ==========================================================================
   6. GRID SYSTEMS & ARCHITECTURAL LAYOUTS
   ========================================================================== */
.hero-trust-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.5rem;
  margin-bottom: 2.25rem;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
  z-index: 1;
}

.trust-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.9rem;
  border-radius: 9999px;
  background-color: var(--accent-crimson-soft);
  border: 1px solid var(--accent-crimson-border);
  color: var(--accent-crimson);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.trust-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-crimson);
}

.hero-main-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.75rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

@media (min-width: 1024px) {
  .hero-main-grid {
    grid-template-columns: 7fr 5fr;
    gap: 3.5rem;
  }
}

.hero-metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  padding-top: 1.75rem;
  margin-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
}

@media (min-width: 640px) {
  .hero-metrics-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric-value {
  font-family: var(--font-serif);
  font-size: 2.15rem;
  font-weight: 700;
  line-height: 1.1;
  display: block;
  color: var(--text-primary);
}

.metric-value.accent {
  color: var(--accent-crimson);
}

.metric-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 0.25rem;
  display: block;
}

/* Aerial Factory Hero Card */
.hero-aerial-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background-color: #0F172A;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
}

.hero-aerial-card img.aerial-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-aerial-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 12, 18, 0.9) 0%, rgba(10, 12, 18, 0.25) 55%, transparent 100%);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem;
  color: #FFFFFF;
}

.hero-mini-pair {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

/* Global OEM Partners Grid */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .partners-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (min-width: 1024px) {
  .partners-grid {
    grid-template-columns: repeat(9, 1fr);
  }
}

.partner-chip {
  padding: 0.85rem 0.5rem;
  border-radius: 12px;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  text-align: center;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  box-shadow: var(--shadow-xs);
}

/* 3-Column & 4-Column Responsive Grids */
.grid-3-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .grid-3-col {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3-col {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }
}

.grid-4-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .grid-4-col {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4-col {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }
}

.grid-2-col-asym {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
}

@media (min-width: 1024px) {
  .grid-2-col-asym {
    grid-template-columns: 7fr 5fr;
    gap: 3.5rem;
  }
}

/* ==========================================================================
   7. ARCHITECTURAL CARDS & PRODUCT STUDIO STAGE (ZERO OVERLAP)
   ========================================================================== */
.arch-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
}

.arch-card:hover {
  border-color: var(--accent-crimson);
  box-shadow: var(--shadow-lg);
}

/* Dedicated Top Header Strip inside Product Card (Never overlaps furniture image!) */
.card-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--bg-secondary);
}

.badge-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  background-color: #0F172A;
  color: #FFFFFF;
  letter-spacing: 0.04em;
}

html[data-theme="dark"] .badge-code {
  background-color: var(--accent-crimson);
}

.badge-pillar {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  background-color: var(--accent-amber-soft);
  color: var(--accent-amber);
  border: 1px solid var(--accent-amber-border);
}

.badge-container-qty {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}

/* Pure Unobstructed White Studio Frame for Product Renders */
.product-studio-stage {
  position: relative;
  background: radial-gradient(circle at 50% 45%, #FFFFFF 0%, #F5F2EB 100%);
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 260px;
  padding: 1.25rem;
}

.product-studio-stage.compact-stage {
  height: 210px;
  padding: 1rem;
}

.product-studio-stage img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.arch-card:hover .product-studio-stage img {
  transform: scale(1.03);
}

/* Dimension Spec Box inside Product Card */
.dim-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  padding: 0.75rem;
  border-radius: 12px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}

.dim-cell-label {
  display: block;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.dim-cell-val {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Original Geometric Hoverboxes (Circle, Triangle, Square) */
.geo-hoverbox {
  position: relative;
  width: 60px;
  height: 60px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #FFFFFF;
  border-radius: 14px;
  border: 1px solid #E2E8F0;
  padding: 8px;
}

.geo-hoverbox img {
  position: absolute;
  inset: 8px;
  width: calc(100% - 16px);
  height: calc(100% - 16px);
  object-fit: contain;
  transition: opacity 0.25s ease;
}

.geo-hoverbox .img-hover {
  opacity: 0;
}

.arch-card:hover .geo-hoverbox .img-default {
  opacity: 0;
}

.arch-card:hover .geo-hoverbox .img-hover {
  opacity: 1;
}

/* Contact Icon Wrapper (Ensures crisp contrast in both themes) */
.contact-icon-box {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background-color: #FFFFFF;
  border: 1px solid #E2E8F0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  flex-shrink: 0;
  box-shadow: var(--shadow-xs);
}

.contact-icon-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* ==========================================================================
   8. NATIVE DIALOG MODALS (Modern Web Guidance: light-dismiss-a-dialog)
   ========================================================================== */
dialog.arch-dialog:not([open]) {
  display: none !important;
}

dialog.arch-dialog {
  margin: auto;
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  max-width: 1040px;
  width: calc(100% - 2rem);
  max-height: 90vh;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.55);
  overflow: hidden;
}

dialog.arch-dialog[open] {
  display: flex;
  flex-direction: column;
}

dialog.arch-dialog::backdrop {
  background-color: rgba(10, 12, 18, 0.76);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.dialog-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  background-color: var(--bg-secondary);
}

/* ==========================================================================
   9. COMPLETE UTILITY CLASSES (100% Coverage for index.html & app.js)
   ========================================================================== */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1 1 0%; }
.shrink-0 { flex-shrink: 0; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

.relative { position: relative; }
.absolute { position: absolute; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-3 { top: 0.75rem; }
.bottom-2 { bottom: 0.5rem; }
.bottom-3 { bottom: 0.75rem; }
.left-2 { left: 0.5rem; }
.left-3 { left: 0.75rem; }
.right-2 { right: 0.5rem; }
.right-3 { right: 0.75rem; }
.z-10 { z-index: 10; }

/* Grid Columns & Gaps */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.gap-1 { gap: 0.25rem; }
.gap-1\.5 { gap: 0.375rem; }
.gap-2 { gap: 0.5rem; }
.gap-2\.5 { gap: 0.625rem; }
.gap-3 { gap: 0.75rem; }
.gap-3\.5 { gap: 0.875rem; }
.gap-4 { gap: 1rem; }
.gap-5 { gap: 1.25rem; }
.gap-6 { gap: 1.5rem; }
.gap-7 { gap: 1.75rem; }
.gap-8 { gap: 2rem; }
.gap-10 { gap: 2.5rem; }
.gap-12 { gap: 3rem; }

/* Vertical Stack Spacing */
.space-y-1\.5 > * + * { margin-top: 0.375rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-2\.5 > * + * { margin-top: 0.625rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }

/* Sizing */
.w-2 { width: 0.5rem; }
.w-4 { width: 1rem; }
.w-5 { width: 1.25rem; }
.w-6 { width: 1.5rem; }
.w-12 { width: 3rem; }
.w-14 { width: 3.5rem; }
.w-24 { width: 6rem; }
.w-auto { width: auto; }
.w-full { width: 100%; }

.h-2 { height: 0.5rem; }
.h-4 { height: 1rem; }
.h-5 { height: 1.25rem; }
.h-6 { height: 1.5rem; }
.h-8 { height: 2rem; }
.h-9 { height: 2.25rem; }
.h-10 { height: 2.5rem; }
.h-12 { height: 3rem; }
.h-14 { height: 3.5rem; }
.h-36 { height: 9rem; }
.h-44 { height: 11rem; }
.h-full { height: 100%; }
.h-\[75vh\] { height: 75vh; }
.max-h-full { max-height: 100%; }
.max-h-\[340px\] { max-height: 340px; }
.max-h-\[68vh\] { max-height: 68vh; }
.max-h-\[75vh\] { max-height: 75vh; }
.max-h-\[80vh\] { max-height: 80vh; }
.min-h-\[320px\] { min-height: 320px; }

.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 28rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-7xl { max-width: 80rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

.aspect-square { aspect-ratio: 1 / 1; }
.aspect-4\/3 { aspect-ratio: 4 / 3; }
.aspect-16\/10 { aspect-ratio: 16 / 10; }
.object-contain { object-fit: contain; }
.object-cover { object-fit: cover; }

/* Padding */
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-2\.5 { padding: 0.625rem; }
.p-3 { padding: 0.75rem; }
.p-3\.5 { padding: 0.875rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-2\.5 { padding-left: 0.625rem; padding-right: 0.625rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-3\.5 { padding-left: 0.875rem; padding-right: 0.875rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }

.py-0\.5 { padding-top: 0.125rem; padding-bottom: 0.125rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-5 { padding-top: 1.25rem; padding-bottom: 1.25rem; }
.py-14 { padding-top: 3.5rem; padding-bottom: 3.5rem; }
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }

.pt-2 { padding-top: 0.5rem; }
.pt-2\.5 { padding-top: 0.625rem; }
.pt-3 { padding-top: 0.75rem; }
.pt-4 { padding-top: 1rem; }
.pt-6 { padding-top: 1.5rem; }
.pt-8 { padding-top: 2rem; }
.pt-32 { padding-top: 8rem; }
.pb-8 { padding-bottom: 2rem; }
.pb-10 { padding-bottom: 2.5rem; }
.pb-20 { padding-bottom: 5rem; }

/* Margin */
.mt-1 { margin-top: 0.25rem; }
.mt-1\.5 { margin-top: 0.375rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-2\.5 { margin-top: 0.625rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-10 { margin-top: 2.5rem; }
.mt-14 { margin-top: 3.5rem; }
.mt-20 { margin-top: 5rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-1\.5 { margin-bottom: 0.375rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-2\.5 { margin-bottom: 0.625rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-14 { margin-bottom: 3.5rem; }

/* Typography Utilities */
.text-\[10px\] { font-size: 10px; }
.text-\[11px\] { font-size: 11px; }
.text-xs { font-size: 0.75rem; line-height: 1.4; }
.text-sm { font-size: 0.875rem; line-height: 1.5; }
.text-base { font-size: 1rem; line-height: 1.6; }
.text-lg { font-size: 1.125rem; line-height: 1.55; }
.text-xl { font-size: 1.25rem; line-height: 1.4; }
.text-2xl { font-size: 1.5rem; line-height: 1.3; }
.text-3xl { font-size: 1.875rem; line-height: 1.2; }
.text-4xl { font-size: 2.25rem; line-height: 1.15; }

.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.italic { font-style: italic; }
.uppercase { text-transform: uppercase; }
.underline { text-decoration: underline; }
.text-center { text-align: center; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tracking-tight { letter-spacing: -0.02em; }
.tracking-wide { letter-spacing: 0.025em; }
.tracking-wider { letter-spacing: 0.05em; }
.tracking-widest { letter-spacing: 0.1em; }
.leading-tight { line-height: 1.2; }
.leading-snug { line-height: 1.35; }
.leading-relaxed { line-height: 1.65; }
.leading-\[1\.05\] { line-height: 1.05; }

/* Borders & Radius */
.rounded { border-radius: 0.25rem; }
.rounded-md { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }

.border { border: 1px solid var(--border-subtle); }
.border-0 { border: 0; }
.border-t { border-top: 1px solid var(--border-subtle); }
.border-b { border-bottom: 1px solid var(--border-subtle); }

/* Theme-Aware Semantic Colors */
.bg-white { background-color: #FFFFFF; }
.bg-white\/95 { background-color: rgba(255, 255, 255, 0.95); }
.bg-white\/90 { background-color: rgba(255, 255, 255, 0.9); }
.bg-white\/80 { background-color: var(--bg-elevated); }
.bg-white\/10 { background-color: rgba(255, 255, 255, 0.1); }
.bg-white\/5 { background-color: rgba(255, 255, 255, 0.05); }

.bg-slate-50 { background-color: var(--bg-secondary); }
.bg-slate-100,
.bg-slate-100\/80,
.bg-slate-100\/90 { background-color: var(--bg-secondary); }
.bg-slate-200,
.bg-slate-200\/70,
.bg-slate-200\/80 { background-color: var(--bg-tertiary); }
.bg-stone-100\/60,
.bg-stone-100\/70 { background-color: var(--bg-secondary); }

.bg-slate-800,
.bg-slate-800\/90 { background-color: #1E293B; }
.bg-slate-900 { background-color: #0F172A; }
.bg-slate-950 { background-color: #060911; }
.bg-slate-950\/80,
.bg-slate-950\/85,
.bg-slate-950\/90 { background-color: rgba(6, 9, 17, 0.88); }

.bg-red-50 { background-color: var(--accent-crimson-soft); }
.bg-red-600,
.bg-red-700,
.bg-red-700\/95 { background-color: var(--accent-crimson); }
.bg-amber-50,
.bg-amber-100 { background-color: var(--accent-amber-soft); }
.bg-amber-600 { background-color: #D97706; }
.bg-emerald-50 { background-color: var(--accent-emerald-soft); }
.bg-emerald-700 { background-color: #047857; }

.text-white { color: #FFFFFF; }
.text-slate-900,
.text-slate-800 { color: var(--text-primary); }
.text-slate-700,
.text-slate-600 { color: var(--text-secondary); }
.text-slate-500,
.text-slate-400 { color: var(--text-muted); }
.text-slate-300 { color: #CBD5E1; }

.text-red-700,
.text-red-900 { color: var(--accent-crimson); }
.text-amber-950,
.text-amber-900,
.text-amber-800,
.text-amber-700 { color: var(--accent-amber); }
.text-amber-400,
.text-amber-300 { color: #FBBF24; }
.text-emerald-900,
.text-emerald-700 { color: var(--accent-emerald); }

.border-slate-100,
.border-slate-200,
.border-slate-200\/60,
.border-slate-200\/70,
.border-slate-200\/80,
.border-slate-300 { border-color: var(--border-subtle); }
.border-slate-600,
.border-slate-700,
.border-slate-800 { border-color: #334155; }
.border-white\/10,
.border-white\/15,
.border-white\/20 { border-color: rgba(255, 255, 255, 0.14); }
.border-red-200 { border-color: var(--accent-crimson-border); }
.border-amber-300,
.border-amber-300\/60,
.border-amber-400\/30 { border-color: var(--accent-amber-border); }
.border-emerald-300 { border-color: var(--accent-emerald-border); }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-y-auto { overflow-y: auto; }
.cursor-pointer { cursor: pointer; }
.pointer-events-none { pointer-events: none; }
.accent-red-700 { accent-color: var(--accent-crimson); }

/* Form Inputs */
.arch-input {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background-color: var(--bg-elevated);
  color: var(--text-primary);
  font-size: 0.92rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.arch-input:focus {
  border-color: var(--accent-crimson);
  box-shadow: 0 0 0 3px var(--accent-crimson-soft);
  outline: none;
}

/* Responsive Breakpoint Utilities (sm, md, lg, xl) */
@media (min-width: 640px) {
  .sm\:inline { display: inline; }
  .sm\:flex-row { flex-direction: row; }
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .sm\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .sm\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .sm\:p-8 { padding: 2rem; }
  .sm\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
  .sm\:text-left { text-align: left; }
  .sm\:text-sm { font-size: 0.875rem; }
  .sm\:text-base { font-size: 1rem; }
  .sm\:text-lg { font-size: 1.125rem; }
  .sm\:text-2xl { font-size: 1.5rem; }
  .sm\:text-4xl { font-size: 2.25rem; }
  .sm\:text-5xl { font-size: 3rem; }
  .sm\:text-6xl { font-size: 3.5rem; }
  .sm\:min-h-\[380px\] { min-height: 380px; }
}

@media (min-width: 768px) {
  .md\:flex-row { flex-direction: row; }
  .md\:items-end { align-items: flex-end; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .md\:col-span-3 { grid-column: span 3 / span 3; }
  .md\:col-span-4 { grid-column: span 4 / span 4; }
  .md\:col-span-5 { grid-column: span 5 / span 5; }
}

@media (min-width: 1024px) {
  .lg\:flex { display: flex; }
  .lg\:flex-row { flex-direction: row; }
  .lg\:items-end { align-items: flex-end; }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lg\:grid-cols-9 { grid-template-columns: repeat(9, minmax(0, 1fr)); }
  .lg\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .lg\:col-span-5 { grid-column: span 5 / span 5; }
  .lg\:col-span-6 { grid-column: span 6 / span 6; }
  .lg\:col-span-7 { grid-column: span 7 / span 7; }
  .lg\:border-b-0 { border-bottom: 0; }
  .lg\:border-r { border-right: 1px solid var(--border-subtle); }
  .lg\:p-10 { padding: 2.5rem; }
  .lg\:p-12 { padding: 3rem; }
  .lg\:px-8 { padding-left: 2rem; padding-right: 2rem; }
  .lg\:py-28 { padding-top: 7rem; padding-bottom: 7rem; }
  .lg\:pt-36 { padding-top: 9rem; }
  .lg\:pb-28 { padding-bottom: 7rem; }
  .lg\:text-7xl { font-size: 4.15rem; }
}

@media (min-width: 1280px) {
  .xl\:flex { display: flex; }
  .xl\:hidden { display: none !important; }
}

/* Additional Background, Gradient & Interaction Utilities */
.antialiased { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
.bg-arch-grid {
  background-image:
    linear-gradient(to right, rgba(148, 163, 184, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(148, 163, 184, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
}
.bg-cover { background-size: cover; }
.bg-center { background-position: center; }
.opacity-25 { opacity: 0.22; }
html[data-theme="dark"] .opacity-25 { opacity: 0.06; }

.bg-gradient-to-t {
  background: linear-gradient(to top, rgba(6, 9, 17, 0.88) 0%, rgba(6, 9, 17, 0.25) 55%, transparent 100%);
}
.bg-gradient-to-br {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-elevated) 55%, var(--bg-secondary) 100%);
}
.shadow-xs { box-shadow: var(--shadow-xs); }
.transition-colors { transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease; }
.transition-opacity { transition: opacity 0.2s ease; }
.duration-200 { transition-duration: 0.2s; }

.hover\:underline:hover { text-decoration: underline; }
.hover\:text-white:hover { color: #FFFFFF; }
.hover\:bg-red-600:hover,
.hover\:bg-red-700:hover { background-color: var(--accent-crimson-hover); color: #FFFFFF; }
.hover\:bg-slate-700:hover { background-color: #334155; }
.hover\:bg-slate-100:hover { background-color: var(--bg-secondary); }
.hover\:border-amber-400\/70:hover { border-color: #FBBF24; }
.group:hover .group-hover\:opacity-90 { opacity: 0.9; }
.group:hover .group-hover\:underline { text-decoration: underline; }
.group:hover .group-hover\:text-red-700 { color: var(--accent-crimson); }

/* Reduced Motion Accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}