/* ==========================================================================
   AURA & ATELIER - Bespoke Luxury Interior Design Studio
   Core Design System & Layout Stylesheet
   ========================================================================== */

:root {
  /* Color Tokens */
  --bg-primary: #0A0A0C;
  --bg-secondary: #121216;
  --bg-surface: #18181F;
  --bg-card: rgba(24, 24, 31, 0.75);
  --bg-card-hover: rgba(32, 32, 42, 0.9);
  --bg-glass: rgba(18, 18, 22, 0.65);
  
  --text-primary: #F7F5F0;
  --text-secondary: #B5B2AA;
  --text-muted: #706D66;
  
  --gold-primary: #D4AF37;
  --gold-light: #EBD69B;
  --gold-dark: #A88720;
  --gold-glow: rgba(212, 175, 55, 0.28);
  --gold-subtle: rgba(212, 175, 55, 0.12);

  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-gold: rgba(212, 175, 55, 0.32);

  /* Typography */
  --font-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --transition-fast: 0.25s var(--ease-out-expo);
  --transition-smooth: 0.5s var(--ease-out-expo);
  --transition-slow: 0.8s var(--ease-out-expo);

  /* Layout */
  --container-max: 1380px;
  --header-height: 90px;
  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --radius-pill: 9999px;
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  max-width: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  max-width: 100%;
  position: relative;
  -webkit-tap-highlight-color: transparent;
}

/* Selection */
::selection {
  background: var(--gold-primary);
  color: var(--bg-primary);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
}

ul {
  list-style: none;
}

/* Typography Utilities */
.italic-serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}

.text-gold {
  color: var(--gold-primary);
  background: linear-gradient(135deg, #F9E7B9 0%, #D4AF37 50%, #AA8520 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Grid & Containers */
.container {
  width: 90%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
}

.section {
  padding: 130px 0;
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-primary);
  font-weight: 600;
  margin-bottom: 18px;
}

.section-badge::before {
  content: "✦";
  font-size: 0.7rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 4.5vw, 4rem);
  line-height: 1.15;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  font-weight: 300;
  max-width: 640px;
  margin-top: 14px;
}

.section-header-center {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 70px;
}

/* Buttons */
.btn-primary-glow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, #D4AF37 0%, #B89225 100%);
  color: #0A0A0C;
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 24px var(--gold-glow);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(212, 175, 55, 0.45);
  filter: brightness(1.06);
}

.btn-secondary-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid var(--border-medium);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  backdrop-filter: blur(10px);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-secondary-outline:hover {
  border-color: var(--gold-primary);
  color: var(--gold-light);
  background: var(--gold-subtle);
  transform: translateY(-2px);
}

.btn-full {
  width: 100%;
}

.btn-lg {
  padding: 18px 36px;
  font-size: 0.98rem;
}

/* ==========================================================================
   SITE HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 900;
  display: flex;
  align-items: center;
  transition: background var(--transition-smooth), height var(--transition-smooth), backdrop-filter var(--transition-smooth);
}

.site-header.scrolled {
  height: 74px;
  background: rgba(10, 10, 12, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  position: relative;
}

.logo-symbol {
  color: var(--gold-primary);
  font-size: 0.75rem;
  margin-bottom: 2px;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-primary);
}

.logo-amp {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--gold-primary);
  font-weight: 400;
}

.logo-sub {
  font-size: 0.58rem;
  letter-spacing: 0.28em;
  color: var(--text-secondary);
  text-transform: uppercase;
  font-weight: 400;
  margin-top: 2px;
}

.desktop-nav .nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-link {
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
  font-weight: 400;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1.5px;
  background: var(--gold-primary);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 42px;
  height: 42px;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-menu-toggle.is-open .hamburger-line:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.mobile-menu-toggle.is-open .hamburger-line:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Mobile Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 380px;
  height: 100vh;
  height: 100dvh;
  background: #121217;
  z-index: 950;
  padding: max(24px, env(safe-area-inset-top)) 28px max(24px, env(safe-area-inset-bottom));
  border-left: 1px solid var(--border-medium);
  transition: right var(--transition-smooth);
  display: flex;
  flex-direction: column;
  box-shadow: -20px 0 60px rgba(0, 0, 0, 0.75);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-nav-drawer.is-active {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-drawer-logo {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--gold-light);
  letter-spacing: 0.08em;
}

.mobile-drawer-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.mobile-drawer-close:hover {
  background: var(--gold-primary);
  color: #0A0A0C;
}

.mobile-drawer-inner {
  display: flex;
  flex-direction: column;
  min-height: calc(100% - 60px);
  justify-content: space-between;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 28px;
}

.mobile-nav-link {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  display: block;
}

.mobile-nav-link:hover {
  color: var(--gold-light);
  padding-left: 8px;
}

.mobile-drawer-footer {
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
}

.mobile-location {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 14px;
  text-align: center;
}

.mobile-wa-btn {
  display: block;
  text-align: center;
  background: #25D366;
  color: #0A0A0C;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 13px;
  border-radius: var(--radius-pill);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 130px;
  padding-bottom: 70px;
  overflow: hidden;
}

.hero-media-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.42) saturate(1.1);
  transform: scale(1.05);
  animation: heroKenBurns 28s ease-in-out infinite alternate;
}

@keyframes heroKenBurns {
  0% { transform: scale(1.05) translate(0, 0); }
  100% { transform: scale(1.15) translate(-1.5%, -1%); }
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  background: radial-gradient(circle at 60% 40%, rgba(10, 10, 12, 0.4) 0%, rgba(10, 10, 12, 0.88) 75%, #0A0A0C 100%),
              linear-gradient(to bottom, rgba(10, 10, 12, 0.5) 0%, transparent 40%, var(--bg-primary) 100%);
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 960px;
}

.hero-tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-medium);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 26px;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  background-color: var(--gold-primary);
  border-radius: 50%;
  box-shadow: 0 0 0 rgba(212, 175, 55, 0.6);
  animation: pulseGold 2s infinite;
}

@keyframes pulseGold {
  0% { box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.7); }
  70% { box-shadow: 0 0 0 8px rgba(212, 175, 55, 0); }
  100% { box-shadow: 0 0 0 0 rgba(212, 175, 55, 0); }
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 6.5vw, 5.6rem);
  line-height: 1.05;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.hero-lead {
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  color: var(--text-secondary);
  font-weight: 300;
  max-width: 680px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #E6CA92 0%, #D4AF37 50%, #B89225 100%);
  color: #0A0A0C;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  padding: 16px 34px;
  border-radius: var(--radius-pill);
  box-shadow: 0 6px 28px var(--gold-glow);
  transition: all var(--transition-fast);
}

.btn-hero-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 36px rgba(212, 175, 55, 0.5);
  filter: brightness(1.08);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 30px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-medium);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 400;
  transition: all var(--transition-fast);
}

.btn-hero-secondary:hover {
  border-color: var(--gold-primary);
  color: var(--gold-light);
  background: var(--gold-subtle);
  transform: translateY(-2px);
}

/* Stats Strip */
.hero-stats-strip {
  display: flex;
  align-items: center;
  gap: 36px;
  padding: 24px 34px;
  background: rgba(18, 18, 22, 0.6);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  max-width: fit-content;
}

.stat-badge {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  font-weight: 400;
  line-height: 1;
  color: var(--text-primary);
}

.gold-plus {
  color: var(--gold-primary);
  font-family: var(--font-sans);
  font-size: 1.4rem;
  margin-left: 2px;
}

.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 6px;
  white-space: nowrap;
}

.stat-divider {
  width: 1px;
  height: 38px;
  background: var(--border-medium);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 34px;
  right: 6%;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.hero-scroll-indicator:hover {
  color: var(--gold-primary);
}

.mouse-icon {
  width: 20px;
  height: 32px;
  border: 1.5px solid currentColor;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.wheel {
  width: 3px;
  height: 6px;
  background-color: currentColor;
  border-radius: 2px;
  animation: mouseWheel 1.8s infinite;
}

@keyframes mouseWheel {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(10px); }
}

.scroll-txt {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  font-weight: 500;
}

/* ==========================================================================
   PHILOSOPHY / ABOUT SECTION
   ========================================================================== */
.philosophy-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 80px;
  align-items: center;
}

.philosophy-desc {
  color: var(--text-secondary);
  font-size: 1.08rem;
  font-weight: 300;
  line-height: 1.8;
  margin-top: 24px;
  margin-bottom: 44px;
}

.philosophy-pillars {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.pillar-item {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.pillar-number {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--gold-primary);
  line-height: 1;
  font-style: italic;
}

.pillar-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.pillar-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 300;
}

.philosophy-right {
  position: relative;
}

.philosophy-image-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.7);
  border: 1px solid var(--border-subtle);
}

.philosophy-image-card .card-img {
  width: 100%;
  height: 560px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.philosophy-image-card:hover .card-img {
  transform: scale(1.04);
}

.curated-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background: rgba(14, 14, 18, 0.85);
  backdrop-filter: blur(16px);
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.badge-quote {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.35;
}

.badge-author {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--gold-light);
  text-transform: uppercase;
}

/* ==========================================================================
   PORTFOLIO SHOWCASE
   ========================================================================== */
.portfolio-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 50px;
  flex-wrap: wrap;
  gap: 24px;
}

.portfolio-filters {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: rgba(255, 255, 255, 0.03);
  padding: 6px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
}

.filter-btn {
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: all var(--transition-fast);
}

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

.filter-btn.active {
  background: var(--gold-primary);
  color: #0A0A0C;
  font-weight: 600;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: 36px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-gold);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.6), 0 0 25px var(--gold-subtle);
}

.project-img-box {
  position: relative;
  width: 100%;
  height: 320px;
  overflow: hidden;
}

.project-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease-out-expo);
}

.project-card:hover .project-img-box img {
  transform: scale(1.08);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(10, 10, 12, 0.85) 0%, rgba(10, 10, 12, 0.1) 60%, transparent 100%);
  opacity: 0;
  display: flex;
  align-items: flex-end;
  padding: 24px;
  transition: opacity var(--transition-smooth);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-view-cta {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-light);
  font-weight: 600;
  transform: translateY(10px);
  transition: transform var(--transition-smooth);
}

.project-card:hover .project-view-cta {
  transform: translateY(0);
}

.project-info {
  padding: 26px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-primary);
}

.project-name {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.25;
}

.project-brief {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.6;
}

/* ==========================================================================
   MATERIALS LAB
   ========================================================================== */
.materials-interactive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.material-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-smooth);
  cursor: pointer;
}

.material-card:hover,
.material-card.active {
  border-color: var(--border-gold);
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
}

.material-preview {
  width: 100%;
  height: 200px;
  background-size: cover;
  background-position: center;
  transition: transform var(--transition-smooth);
}

.material-card:hover .material-preview {
  transform: scale(1.05);
}

.material-content {
  padding: 24px;
}

.mat-origin {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-primary);
  display: block;
  margin-bottom: 6px;
}

.mat-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--text-primary);
  margin-bottom: 8px;
  font-weight: 400;
}

.mat-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.6;
}

/* ==========================================================================
   COST ESTIMATOR SECTION
   ========================================================================== */
.estimator-wrapper {
  background: linear-gradient(145deg, rgba(24, 24, 32, 0.8) 0%, rgba(14, 14, 18, 0.95) 100%);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 60px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
}

.estimator-wrapper::before {
  content: "";
  position: absolute;
  top: -150px;
  right: -150px;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, var(--gold-glow) 0%, transparent 70%);
  pointer-events: none;
}

.estimator-header {
  margin-bottom: 48px;
  max-width: 680px;
}

.estimator-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  font-weight: 300;
  margin-top: 10px;
}

.estimator-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 50px;
  align-items: flex-start;
}

.estimator-controls {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.control-label {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-primary);
  font-weight: 600;
}

.button-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.select-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  text-align: left;
}

.select-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.select-btn.active {
  background: var(--gold-subtle);
  border-color: var(--gold-primary);
  color: var(--gold-light);
  box-shadow: 0 0 16px rgba(212, 175, 55, 0.15);
}

.btn-icon {
  font-size: 1.1rem;
}

/* Slider Controls */
.slider-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.range-display-val {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--gold-light);
}

.luxury-range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  outline: none;
  margin: 10px 0;
}

.luxury-range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gold-primary);
  cursor: pointer;
  box-shadow: 0 0 12px var(--gold-glow);
  border: 2px solid #0A0A0C;
  transition: transform var(--transition-fast);
}

.luxury-range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.range-markers {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Tier Selector */
.tier-selector {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tier-option {
  position: relative;
  cursor: pointer;
}

.tier-option input[type="radio"] {
  position: absolute;
  opacity: 0;
}

.tier-box {
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.tier-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.tier-detail {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 300;
}

.tier-option input:checked + .tier-box {
  background: var(--gold-subtle);
  border-color: var(--gold-primary);
}

.tier-option input:checked + .tier-box .tier-name {
  color: var(--gold-light);
}

/* Result Card */
.estimator-result-card {
  position: sticky;
  top: 110px;
}

.result-card-inner {
  background: rgba(10, 10, 14, 0.9);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 30px var(--gold-subtle);
}

.result-badge {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-primary);
  font-weight: 600;
  display: block;
  margin-bottom: 12px;
}

.result-price-box {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.currency-symbol {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  color: var(--gold-primary);
}

.estimated-amount {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 3.5vw, 3.4rem);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1;
}

.estimated-range {
  width: 100%;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-top: 4px;
}

.estimate-breakdown {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 30px;
  font-size: 0.82rem;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
}

.breakdown-row strong {
  color: var(--text-primary);
  font-weight: 500;
}

.result-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ==========================================================================
   PRESS & TESTIMONIALS
   ========================================================================== */
.press-logos-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 34px;
  flex-wrap: wrap;
  margin-bottom: 60px;
  color: var(--text-muted);
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: 0.15em;
}

.press-logo {
  transition: color var(--transition-fast);
}

.press-logo:hover {
  color: var(--gold-light);
}

.press-logo-dot {
  color: var(--border-medium);
  font-size: 0.7rem;
}

.testimonials-carousel {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
  text-align: center;
  min-height: 280px;
}

.testimonial-card {
  display: none;
  flex-direction: column;
  align-items: center;
  animation: fadeInTestimonial 0.6s var(--ease-out-expo) forwards;
}

.testimonial-card.active {
  display: flex;
}

@keyframes fadeInTestimonial {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.quote-symbol {
  font-family: var(--font-serif);
  font-size: 4rem;
  line-height: 1;
  color: var(--gold-primary);
  opacity: 0.4;
  margin-bottom: -10px;
}

.testimonial-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  font-weight: 300;
  line-height: 1.6;
  color: var(--text-primary);
  font-style: italic;
  margin-bottom: 28px;
}

.author-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  display: block;
}

.author-title {
  font-size: 0.8rem;
  color: var(--gold-light);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 4px;
  display: block;
}

.testimonial-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 40px;
}

.t-nav-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.t-nav-btn:hover {
  border-color: var(--gold-primary);
  color: var(--gold-light);
  background: var(--gold-subtle);
}

.t-indicators {
  display: flex;
  align-items: center;
  gap: 8px;
}

.t-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.t-dot.active {
  width: 24px;
  border-radius: 4px;
  background: var(--gold-primary);
}

/* ==========================================================================
   CALL TO ACTION (CTA)
   ========================================================================== */
.cta-inner-card {
  position: relative;
  background: radial-gradient(circle at center, rgba(28, 28, 38, 0.9) 0%, rgba(14, 14, 18, 0.98) 100%);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 80px 40px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.7);
}

.cta-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--gold-glow) 0%, transparent 60%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cta-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 4.5vw, 4.2rem);
  line-height: 1.15;
  font-weight: 300;
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
}

.cta-lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  font-weight: 300;
  max-width: 600px;
  margin-bottom: 40px;
  position: relative;
  z-index: 2;
}

.cta-buttons {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
  z-index: 2;
}

/* ==========================================================================
   SITE FOOTER
   ========================================================================== */
.site-footer {
  background-color: #070709;
  padding: 90px 0 40px;
  border-top: 1px solid var(--border-subtle);
}

.footer-content {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr 1.2fr;
  gap: 50px;
  margin-bottom: 70px;
}

.footer-brand .brand-logo {
  margin-bottom: 18px;
}

.footer-bio {
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 300;
  line-height: 1.7;
  max-width: 320px;
  margin-bottom: 24px;
}

.footer-studios {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-studios strong {
  color: var(--text-secondary);
}

.footer-heading {
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 22px;
  font-weight: 600;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 300;
}

.footer-links a:hover {
  color: var(--gold-primary);
  padding-left: 4px;
}

.availability-tag {
  color: #55E084;
  font-size: 0.8rem;
  font-weight: 500;
}

.newsletter-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 300;
  margin-bottom: 16px;
}

.newsletter-form {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-pill);
  padding: 4px 6px 4px 18px;
  transition: border-color var(--transition-fast);
}

.newsletter-form:focus-within {
  border-color: var(--gold-primary);
}

.newsletter-input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 0.85rem;
  width: 100%;
}

.newsletter-submit {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gold-primary);
  color: #0A0A0C;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.newsletter-submit:hover {
  transform: scale(1.08);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 30px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 20px;
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-legal a:hover {
  color: var(--text-primary);
}

.back-to-top {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.back-to-top:hover {
  border-color: var(--gold-primary);
  color: var(--gold-light);
  transform: translateY(-3px);
}

/* ==========================================================================
   SCROLL REVEAL ANIMATIONS
   ========================================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   PRODUCTION-GRADE RESPONSIVE BREAKPOINTS
   ========================================================================== */

/* --- TABLETS & SMALL DESKTOPS (<= 1024px) --- */
@media (max-width: 1024px) {
  :root {
    --header-height: 80px;
  }

  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .philosophy-image-card .card-img {
    height: 440px;
  }

  .estimator-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .estimator-result-card {
    position: static;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

/* --- TABLET PORTRAIT & MOBILE SCREENS (<= 768px) --- */
@media (max-width: 768px) {
  :root {
    --header-height: 72px;
  }

  .container {
    width: 92%;
  }

  .section {
    padding: 75px 0;
  }

  .desktop-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  /* Header adjustments */
  .site-header.scrolled {
    height: 66px;
  }

  .brand-logo .logo-text {
    font-size: 1.25rem;
    letter-spacing: 0.08em;
  }

  .header-actions {
    gap: 10px;
  }

  .header-cta-btn {
    padding: 10px 18px;
    font-size: 0.8rem;
  }

  /* Hero Section */
  .hero-section {
    min-height: 100svh;
    padding-top: calc(var(--header-height) + 24px);
    padding-bottom: 40px;
  }

  .hero-title {
    font-size: clamp(2.3rem, 7vw, 3.6rem);
    line-height: 1.12;
    margin-bottom: 18px;
    word-break: break-word;
  }

  .hero-lead {
    font-size: 1rem;
    line-height: 1.65;
    margin-bottom: 30px;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 12px;
    margin-bottom: 40px;
  }

  .btn-hero-primary,
  .btn-hero-secondary {
    width: 100%;
    justify-content: center;
    padding: 15px 24px;
    font-size: 0.92rem;
  }

  /* Hero Stats: Clean 2x2 Grid */
  .hero-stats-strip {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 20px;
    width: 100%;
    max-width: 100%;
    padding: 20px;
    border-radius: var(--radius-md);
  }

  .stat-divider {
    display: none;
  }

  .stat-num {
    font-size: 1.8rem;
  }

  .stat-label {
    font-size: 0.68rem;
    white-space: normal;
    line-height: 1.35;
  }

  .hero-scroll-indicator {
    display: none; /* Avoid overlapping on mobile viewports */
  }

  /* Philosophy */
  .philosophy-image-card .card-img {
    height: 340px;
  }

  .curated-badge {
    bottom: 16px;
    left: 16px;
    right: 16px;
    padding: 16px;
  }

  .badge-quote {
    font-size: 1rem;
  }

  /* Portfolio Filter as Horizontal Swipe */
  .portfolio-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 36px;
  }

  .portfolio-filters {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 6px 8px;
    gap: 8px;
    border-radius: var(--radius-md);
  }

  .portfolio-filters::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    flex-shrink: 0;
    white-space: nowrap;
    padding: 9px 16px;
    font-size: 0.78rem;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .project-img-box {
    height: 240px;
  }

  /* Keep CTA visible on mobile touch screens */
  .project-overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(10, 10, 12, 0.8) 0%, transparent 60%);
  }

  .project-view-cta {
    transform: translateY(0);
    font-size: 0.76rem;
  }

  /* Materials Lab */
  .materials-interactive-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .material-preview {
    height: 140px;
  }

  .material-content {
    padding: 16px;
  }

  .mat-name {
    font-size: 1.15rem;
  }

  .mat-desc {
    font-size: 0.78rem;
  }

  /* Estimator */
  .estimator-wrapper {
    padding: 30px 18px;
  }

  .button-selector {
    grid-template-columns: 1fr;
  }

  .select-btn {
    padding: 14px 16px;
  }

  .result-card-inner {
    padding: 26px 18px;
  }

  .estimated-amount {
    font-size: clamp(2rem, 7.5vw, 2.8rem);
  }

  /* Press & Testimonials */
  .press-logos-strip {
    font-size: 0.88rem;
    gap: 16px 20px;
    margin-bottom: 40px;
  }

  .testimonials-carousel {
    min-height: auto;
  }

  .testimonial-quote {
    font-size: clamp(1.1rem, 4.2vw, 1.4rem);
    line-height: 1.55;
    margin-bottom: 22px;
  }

  /* Call to Action */
  .cta-inner-card {
    padding: 50px 20px;
  }

  .cta-buttons {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .cta-buttons .btn-lg,
  .cta-buttons a {
    width: 100%;
    justify-content: center;
  }

  /* Footer */
  .footer-content {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .footer-legal {
    flex-wrap: wrap;
    gap: 10px;
  }
}

/* --- SMALL MOBILE SCREENS (<= 480px) --- */
@media (max-width: 480px) {
  :root {
    --header-height: 66px;
  }

  .section {
    padding: 60px 0;
  }

  /* Header compacting */
  .brand-logo .logo-text {
    font-size: 1.08rem;
    letter-spacing: 0.05em;
  }

  .brand-logo .logo-sub {
    font-size: 0.52rem;
  }

  .header-cta-btn .btn-text {
    display: none; /* Show icon-only pill on ultra-small screens */
  }

  .header-cta-btn {
    padding: 10px 14px;
    border-radius: var(--radius-pill);
  }

  /* Hero Section */
  .hero-tag-pill {
    font-size: 0.68rem;
    padding: 6px 14px;
    margin-bottom: 18px;
  }

  .hero-title {
    font-size: clamp(1.95rem, 8.8vw, 2.6rem);
  }

  .hero-stats-strip {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  /* Philosophy */
  .pillar-item {
    gap: 16px;
  }

  .pillar-number {
    font-size: 1.4rem;
  }

  .philosophy-image-card .card-img {
    height: 280px;
  }

  /* Materials Lab Single Column */
  .materials-interactive-grid {
    grid-template-columns: 1fr;
  }

  .material-preview {
    height: 160px;
  }

  /* Estimator */
  .estimator-wrapper {
    padding: 24px 14px;
    border-radius: var(--radius-md);
  }

  .range-display-val {
    font-size: 1.1rem;
  }

  .tier-box {
    padding: 14px;
  }

  .tier-name {
    font-size: 0.85rem;
  }

  .tier-detail {
    font-size: 0.72rem;
  }

  .result-card-inner {
    padding: 20px 14px;
  }

  .breakdown-row {
    font-size: 0.76rem;
  }

  /* Toast Notification */
  .toast-notification {
    width: 90%;
    font-size: 0.8rem;
    padding: 12px 18px;
  }
}

/* --- ULTRA-COMPACT MOBILE (<= 360px) --- */
@media (max-width: 360px) {
  .brand-logo .logo-sub {
    display: none;
  }

  .hero-title {
    font-size: 1.8rem;
  }

  .btn-hero-primary,
  .btn-hero-secondary {
    padding: 13px 18px;
    font-size: 0.85rem;
  }
}