/* ==========================================================
   VIBLYSUNNYPTCH — FOLDFORM ARCHITECTURAL STYLESHEET
   Aesthetic: Swiss Minimalist & Architectural Editorial
   Card Architecture: Framed Canvas Card
   Color Palette: Warm Ivory, Graphite, Clay, Sage, Champagne
========================================================== */

:root {
  --color-ivory: #F5F1E8;
  --color-graphite: #252525;
  --color-graphite-light: #3d3d3d;
  --color-clay: #B86F52;
  --color-clay-hover: #9c5c42;
  --color-sage: #87977A;
  --color-champagne: #D8C6A5;
  --color-border: rgba(37, 37, 37, 0.15);
  --color-border-dark: rgba(37, 37, 37, 0.4);
  
  --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Space Grotesk', monospace, sans-serif;
  
  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --container-max: 1360px;
}

/* RESET & BASE */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-ivory);
  color: var(--color-graphite);
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  background-color: var(--color-ivory);
  color: var(--color-graphite);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button, input, select, textarea {
  font-family: inherit;
}

/* ==========================================================
   SLIM ARCHITECTURAL HEADER (PROPER LAYOUT & ONE-WORD BUTTON)
========================================================== */
.site-header {
  position: relative;
  width: 100%;
  min-height: 58px;
  background-color: var(--color-ivory);
  border-bottom: 1px solid var(--color-border);
  z-index: 900;
}

.header-container {
  max-width: var(--container-max);
  min-height: 58px;
  margin: 0 auto;
  padding: 0.6rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1.05rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.brand-logo-icon {
  flex-shrink: 0;
}

.brand-sub {
  font-weight: 400;
  color: var(--color-clay);
  font-size: 0.85rem;
  margin-left: 0.25rem;
  font-family: var(--font-mono);
}

.desktop-nav .nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-graphite);
  padding: 0.25rem 0;
  position: relative;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0%;
  height: 1.5px;
  background-color: var(--color-clay);
  transition: var(--transition-smooth);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* One Word Slim Button */
.btn-architectural-compact {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.76rem;
  font-family: var(--font-mono);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.46rem 1.1rem;
  background-color: var(--color-graphite);
  color: var(--color-ivory);
  border: 1px solid var(--color-graphite);
  white-space: nowrap;
  line-height: 1;
  transition: var(--transition-smooth);
}

.btn-architectural-compact:hover {
  background-color: var(--color-clay);
  border-color: var(--color-clay);
  color: #ffffff;
}

/* Mobile Hamburger Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  padding: 6px;
  cursor: pointer;
  width: 38px;
  height: 36px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  transition: var(--transition-smooth);
}

.mobile-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-graphite);
  transition: var(--transition-smooth);
}

.mobile-toggle.is-active span:nth-child(1) {
  transform: translateY(3.5px) rotate(45deg);
}

.mobile-toggle.is-active span:nth-child(2) {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* Mobile Drawer */
.mobile-drawer {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background-color: var(--color-ivory);
  border-bottom: 2px solid var(--color-graphite);
  padding: 1.75rem 1.5rem 2rem 1.5rem;
  box-shadow: 0 16px 36px rgba(0,0,0,0.12);
  z-index: 890;
}

.mobile-drawer.is-open {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  margin-bottom: 1.5rem;
}

.mobile-nav-link {
  display: block;
  font-size: 1.08rem;
  font-weight: 700;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-graphite);
}

.mobile-drawer-footer .meta-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-clay);
  margin-top: 0.65rem;
  letter-spacing: 0.06em;
}

.mobile-drawer-footer .meta-val {
  font-size: 0.85rem;
  color: var(--color-graphite-light);
}

/* ==========================================================
   HERO SECTION & 3D TRANSFORMATION STAGE
========================================================== */
.hero-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem 1.5rem;
}

.hero-grid-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.code-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-clay);
}

.code-val {
  font-size: 0.92rem;
  font-weight: 600;
}

.hero-title-wrapper {
  margin-bottom: 2.75rem;
}

.editorial-kicker {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--color-graphite-light);
  margin-bottom: 0.85rem;
}

.hero-title {
  font-size: clamp(2.4rem, 6.5vw, 6.2rem);
  line-height: 0.94;
  font-weight: 800;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.hero-title-italic {
  font-family: serif;
  font-weight: 400;
  font-style: italic;
  text-transform: lowercase;
  color: var(--color-clay);
  letter-spacing: -0.02em;
}

/* 3D Viewport Container */
.spatial-viewport-container {
  position: relative;
  background-color: #ECE7DD;
  border: 1px solid var(--color-border);
  padding: 1rem;
}

.canvas-overlay-ui {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
  z-index: 5;
  gap: 0.5rem;
}

.compass-marker {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.compass-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-clay);
  border-radius: 50%;
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.4); }
}

.dimension-indicators {
  display: flex;
  gap: 0.5rem;
}

.dim-tag {
  background-color: rgba(245, 241, 232, 0.92);
  padding: 0.25rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  border: 1px solid var(--color-border);
  font-weight: 600;
  white-space: nowrap;
}

.interactive-webgl-mount {
  width: 100%;
  height: 520px;
  cursor: grab;
}

.interactive-webgl-mount:active {
  cursor: grabbing;
}

/* TRANSFORMATION CONTROLLER */
.transformation-controller-card {
  margin-top: 1rem;
  background-color: var(--color-ivory);
  border: 1px solid var(--color-border);
  padding: 1.25rem 1.5rem;
}

.controller-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 1rem;
  gap: 0.5rem;
}

.state-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-graphite-light);
  opacity: 0.6;
  transition: var(--transition-smooth);
  font-size: 0.75rem;
}

.state-label.active {
  color: var(--color-graphite);
  opacity: 1;
}

.state-bullet {
  width: 6px;
  height: 6px;
  background-color: currentColor;
}

.state-mid {
  font-size: 0.72rem;
  color: var(--color-clay);
  white-space: nowrap;
}

.slider-track-wrap {
  width: 100%;
  position: relative;
  margin-bottom: 0.85rem;
}

.architectural-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: #D8C6A5;
  outline: none;
  border-radius: 0;
  cursor: ew-resize;
}

.architectural-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 30px;
  height: 30px;
  background-color: var(--color-graphite);
  border: 2px solid var(--color-clay);
  cursor: ew-resize;
  transition: transform 0.15s ease;
}

.architectural-range::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  background-color: var(--color-clay);
}

.controller-footnote {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: #777;
  letter-spacing: 0.05em;
  gap: 0.5rem;
}

/* ==========================================================
   SECTION COMMON LEADERS (SWISS STYLE)
========================================================== */
.section-lead-header {
  border-top: 1px solid var(--color-graphite);
  padding-top: 1.5rem;
  margin-bottom: 3rem;
  display: grid;
  grid-template-columns: 180px 1fr 1fr;
  gap: 2rem;
  align-items: baseline;
}

.section-lead-index {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-clay);
}

.section-lead-heading {
  font-size: 2.15rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.12;
}

.section-lead-body {
  font-size: 1rem;
  color: var(--color-graphite-light);
}

/* ==========================================================
   KINEMATICS SEQUENCE (4-STAGE GRID)
========================================================== */
.kinematics-sequence-section {
  max-width: var(--container-max);
  margin: 0 auto 5.5rem auto;
  padding: 0 1.5rem;
}

.sequence-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.sequence-card {
  border: 1px solid var(--color-border);
  background-color: #FAF8F2;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: border-color 0.25s ease;
}

.sequence-card:hover {
  border-color: var(--color-graphite);
}

.seq-number {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-clay);
  margin-bottom: 0.85rem;
}

.seq-img-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  margin-bottom: 1.1rem;
  background-color: #ECE7DD;
}

.seq-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(12%);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.sequence-card:hover .seq-img {
  transform: scale(1.05);
}

.seq-badge {
  position: absolute;
  bottom: 0.5rem;
  right: 0.5rem;
  background-color: var(--color-graphite);
  color: var(--color-ivory);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.2rem 0.5rem;
  font-weight: 600;
}

.seq-content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.seq-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.45rem;
  letter-spacing: -0.01em;
}

.seq-text {
  font-size: 0.86rem;
  color: var(--color-graphite-light);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.seq-action-link {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--color-clay);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.2s ease;
}

.seq-action-link:hover {
  color: var(--color-graphite);
}

/* ==========================================================
   BEFORE / AFTER FOOTPRINT COMPARISON
========================================================== */
.footprint-comparison-section {
  max-width: var(--container-max);
  margin: 0 auto 5.5rem auto;
  padding: 0 1.5rem;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
}

.comparison-panel {
  border: 1px solid var(--color-border);
  background-color: #FAF8F2;
  padding: 1.75rem;
}

.panel-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  display: inline-block;
  margin-bottom: 0.4rem;
}

.tag-negative {
  color: #a33b3b;
}

.tag-positive {
  color: var(--color-sage);
}

.panel-title {
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.panel-visual {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  margin-bottom: 1.25rem;
  border: 1px solid var(--color-border);
}

.comp-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.overlay-stat {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  background-color: rgba(37, 37, 37, 0.9);
  color: var(--color-ivory);
  padding: 0.65rem 0.85rem;
  backdrop-filter: blur(4px);
}

.stat-number {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  font-family: var(--font-mono);
  line-height: 1;
}

.stat-label {
  font-size: 0.68rem;
  color: #CCC;
}

.panel-metric-list {
  list-style: none;
  border-top: 1px solid var(--color-border);
  padding-top: 0.85rem;
}

.panel-metric-list li {
  display: flex;
  justify-content: space-between;
  padding: 0.45rem 0;
  font-size: 0.86rem;
  border-bottom: 1px dashed var(--color-border);
}

/* ==========================================================
   NOVEL CARD ARCHITECTURE: FRAMED CANVAS CARD
========================================================== */
.collection-section {
  max-width: var(--container-max);
  margin: 0 auto 5.5rem auto;
  padding: 0 1.5rem;
}

.card-showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.framed-canvas-card {
  position: relative;
}

.framed-card-outer {
  position: relative;
  padding-top: 10px;
  padding-left: 10px;
  background-color: transparent;
  height: 100%;
}

.framed-card-outer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-champagne);
  border: 1px solid var(--color-graphite);
  z-index: 1;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.framed-card-inner {
  position: relative;
  z-index: 2;
  background-color: var(--color-ivory);
  border: 1px solid var(--color-graphite);
  padding: 1.4rem;
  transform: translate(0, 0);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.framed-canvas-card:hover .framed-card-inner {
  transform: translate(-6px, -6px);
}

.framed-canvas-card:hover .framed-card-outer::before {
  background-color: var(--color-clay);
}

.card-media-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  margin-bottom: 1.15rem;
  border: 1px solid var(--color-border);
}

.card-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.framed-canvas-card:hover .card-thumb {
  transform: scale(1.05);
}

.canvas-tag {
  position: absolute;
  top: 0.65rem;
  left: 0.65rem;
  background-color: var(--color-graphite);
  color: var(--color-ivory);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.22rem 0.5rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.card-metric-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.metric-chip {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  background-color: #ECE7DD;
  padding: 0.18rem 0.45rem;
  border: 1px solid var(--color-border);
}

.card-headline {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.card-summary {
  font-size: 0.86rem;
  color: var(--color-graphite-light);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.card-footer-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--color-border);
  padding-top: 0.9rem;
  margin-top: auto;
}

.price-indicator {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
}

.framed-card-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-clay);
  transition: color 0.2s ease;
}

.framed-card-btn:hover {
  color: var(--color-graphite);
}

/* ==========================================================
   MATERIAL HONESTY SECTION
========================================================== */
.materials-section {
  background-color: #ECE7DD;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 4.5rem 1.5rem;
}

.materials-container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 3.5rem;
}

.materials-title {
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0.75rem 0 1.1rem 0;
}

.materials-lead {
  font-size: 0.95rem;
  color: var(--color-graphite-light);
  margin-bottom: 1.75rem;
}

.btn-architectural-hollow {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  border: 1.5px solid var(--color-graphite);
  color: var(--color-graphite);
  transition: var(--transition-smooth);
}

.btn-architectural-hollow:hover {
  background-color: var(--color-graphite);
  color: var(--color-ivory);
}

.materials-spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.material-block {
  background-color: var(--color-ivory);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
}

.mat-num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--color-clay);
  display: block;
  margin-bottom: 0.4rem;
}

.mat-name {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.45rem;
}

.mat-desc {
  font-size: 0.86rem;
  color: var(--color-graphite-light);
  line-height: 1.5;
}

/* ==========================================================
   FOOTER SECTION (PRESENT ON ALL PAGES)
========================================================== */
.site-footer {
  background-color: var(--color-graphite);
  color: var(--color-ivory);
  padding: 4.5rem 1.5rem 2.5rem 1.5rem;
  border-top: 2px solid var(--color-clay);
  width: 100%;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.2fr 1.4fr;
  gap: 3rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid rgba(245, 241, 232, 0.15);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 0.85rem;
}

.footer-motto {
  font-size: 0.88rem;
  color: #AAA;
  margin-bottom: 1.25rem;
  max-width: 320px;
}

.company-legal-data {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: #888;
  line-height: 1.65;
}

.company-legal-data a {
  color: var(--color-champagne);
  text-decoration: underline;
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-clay);
  margin-bottom: 1.15rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: #BBB;
  font-size: 0.86rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-ivory);
}

.footer-text-small {
  font-size: 0.82rem;
  color: #999;
  line-height: 1.55;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.75rem;
  font-size: 0.76rem;
  color: #777;
  gap: 1rem;
}

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

.footer-lang-badge {
  font-family: var(--font-mono);
  color: var(--color-champagne);
  font-size: 0.72rem;
}

/* ==========================================================
   SMART COOKIE BANNER
========================================================== */
.cookie-banner {
  display: none;
  position: fixed;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  max-width: 920px;
  margin: 0 auto;
  background-color: var(--color-graphite);
  color: var(--color-ivory);
  border: 1px solid var(--color-clay);
  box-shadow: 0 16px 36px rgba(0,0,0,0.35);
  z-index: 9999;
  padding: 1.25rem 1.75rem;
}

.cookie-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cookie-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
  color: var(--color-champagne);
}

.cookie-desc {
  font-size: 0.82rem;
  color: #BBB;
  line-height: 1.45;
  max-width: 600px;
}

.cookie-actions {
  display: flex;
  gap: 0.65rem;
  flex-shrink: 0;
}

.cookie-btn {
  padding: 0.55rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: 0;
  transition: var(--transition-smooth);
}

.cookie-btn-secondary {
  background: transparent;
  color: var(--color-ivory);
  border: 1px solid #555;
}

.cookie-btn-secondary:hover {
  border-color: var(--color-ivory);
}

.cookie-btn-primary {
  background-color: var(--color-clay);
  color: #fff;
  border: 1px solid var(--color-clay);
}

.cookie-btn-primary:hover {
  background-color: var(--color-clay-hover);
}

/* ==========================================================
   SUBPAGE LAYOUT TEMPLATES
========================================================== */
.subpage-hero {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 3.5rem 1.5rem 2rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.subpage-lead-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-clay);
  margin-bottom: 0.4rem;
  display: block;
  letter-spacing: 0.05em;
}

.subpage-title {
  font-size: clamp(2rem, 4.5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.subpage-meta {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: #777;
  margin-top: 0.85rem;
}

.subpage-body-container {
  max-width: 880px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 5rem 1.5rem;
}

.subpage-body-container h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 2.25rem 0 0.85rem 0;
  letter-spacing: -0.02em;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.35rem;
}

.subpage-body-container h3 {
  font-size: 1.18rem;
  font-weight: 600;
  margin: 1.35rem 0 0.45rem 0;
}

.subpage-body-container p {
  font-size: 0.96rem;
  line-height: 1.7;
  color: var(--color-graphite-light);
  margin-bottom: 1.15rem;
}

.subpage-body-container ul, .subpage-body-container ol {
  margin: 0.85rem 0 1.25rem 1.35rem;
}

.subpage-body-container li {
  margin-bottom: 0.45rem;
  color: var(--color-graphite-light);
  font-size: 0.92rem;
}

/* POLICY & SPEC TABLES */
.policy-table-wrapper {
  overflow-x: auto;
  margin: 1.75rem 0;
}

.policy-data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  text-align: left;
}

.policy-data-table th, .policy-data-table td {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--color-border);
}

.policy-data-table th {
  background-color: #ECE7DD;
  font-family: var(--font-mono);
  font-weight: 700;
}

/* CONTACT PAGE CLEAN LAYOUT (NO MAP EMBED) */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  margin-top: 2.5rem;
}

.contact-form {
  background-color: #FAF8F2;
  border: 1px solid var(--color-border);
  padding: 2.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 0.45rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem;
  border: 1px solid var(--color-border-dark);
  background-color: var(--color-ivory);
  font-family: var(--font-primary);
  font-size: 0.9rem;
  color: var(--color-graphite);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: 2px solid var(--color-clay);
  border-color: transparent;
}

.btn-form-submit {
  width: 100%;
  padding: 0.9rem;
  background-color: var(--color-graphite);
  color: var(--color-ivory);
  border: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-form-submit:hover {
  background-color: var(--color-clay);
}

.contact-details-box {
  background-color: #FAF8F2;
  border: 1px solid var(--color-border);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.detail-section {
  border-bottom: 1px dashed var(--color-border);
  padding-bottom: 1.25rem;
}

.detail-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.detail-label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-clay);
  margin-bottom: 0.45rem;
  display: block;
}

.detail-body {
  font-size: 0.9rem;
  color: var(--color-graphite-light);
  line-height: 1.6;
}

/* ==========================================================
   RESPONSIVE DESIGN (DOWN TO 320PX MOBILE PHONES)
========================================================== */
@media (max-width: 1100px) {
  .section-lead-header {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .sequence-grid {
    grid-template-columns: 1fr 1fr;
  }
  .card-showcase-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }
  .materials-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 820px) {
  .desktop-nav {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .header-container {
    padding: 0.5rem 1rem;
  }
  .brand-sub {
    display: none;
  }
  .hero-grid-meta {
    grid-template-columns: 1fr 1fr;
  }
  .hide-mobile {
    display: none;
  }
  .comparison-grid {
    grid-template-columns: 1fr;
  }
  .materials-spec-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .cookie-banner-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .hero-grid-meta {
    grid-template-columns: 1fr;
  }
  .sequence-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .interactive-webgl-mount {
    height: 380px;
  }
  .controller-labels {
    font-size: 0.7rem;
    flex-wrap: wrap;
  }
  .controller-footnote {
    flex-direction: column;
    gap: 0.25rem;
  }
  .subpage-body-container {
    padding: 2.5rem 1rem 4rem 1rem;
  }
  .contact-form,
  .contact-details-box {
    padding: 1.5rem 1.25rem;
  }
  .brand-name {
    font-size: 0.95rem;
  }
  .btn-architectural-compact {
    padding: 0.4rem 0.8rem;
    font-size: 0.72rem;
  }
}

@media (max-width: 360px) {
  .header-actions {
    gap: 0.4rem;
  }
  .btn-architectural-compact {
    padding: 0.35rem 0.65rem;
    font-size: 0.68rem;
  }
  .brand-link svg {
    width: 22px;
    height: 22px;
  }
  .brand-name {
    font-size: 0.88rem;
  }
}