/* ==========================================================================
   NEXTELLO — High-End Editorial & 3D Interactive Showcase
   Design-Studio Craftsmanship • WebGL & GSAP Powered
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700;800&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Nextello Core Color Architecture */
  --ink: #111A2E;
  --ink-deep: #0A0F1C;
  --ink-light: #1A253F;
  --gold: #B89C5A;
  --gold-light: #DFC58A;
  --gold-dark: #8C6F39;
  --gold-glow: rgba(184, 156, 90, 0.28);
  --blue: #1E88E5;
  --blue-glow: rgba(30, 136, 229, 0.25);
  --paper: #FCFBFA;
  --paper-soft: #F5F3EE;
  --paper-card: #FFFFFF;
  --line: rgba(17, 26, 46, 0.1);
  --line-dark: rgba(255, 255, 255, 0.12);
  --text-primary: #111A2E;
  --text-muted: #596170;
  --text-light: #F0F2F5;
  --text-light-muted: #8E9AB0;
  --green: #2E7D32;
  --red: #C62828;

  /* Typography System */
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-display: 'Cinzel', 'Playfair Display', serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Layout & Elevations */
  --container-max: 1360px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --shadow-subtle: 0 4px 20px rgba(17, 26, 46, 0.05);
  --shadow-medium: 0 12px 36px rgba(17, 26, 46, 0.09);
  --shadow-floating: 0 24px 60px rgba(10, 15, 28, 0.22);
  --shadow-gold: 0 10px 30px rgba(184, 156, 90, 0.25);
  --transition-smooth: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--ink-deep);
  color: var(--text-primary);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  overflow-x: hidden;
  position: relative;
  background-color: var(--paper);
  color: var(--text-primary);
  line-height: 1.6;
}

::selection {
  background: var(--gold);
  color: #FFFFFF;
}

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

img, svg {
  display: block;
  max-width: 100%;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 7px;
}
::-webkit-scrollbar-track {
  background: var(--ink-deep);
}
::-webkit-scrollbar-thumb {
  background: var(--gold-dark);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--gold);
}

/* ==========================================================================
   Subpage Layout & Fixed-Header Clearance (Zero Overlap Guaranteed)
   ========================================================================== */
.page-hero-header {
  background: radial-gradient(circle at 75% 25%, #182848 0%, #0E1626 55%, #070B14 100%) !important;
  padding: 130px 24px 50px !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  color: #FFFFFF !important;
  position: relative !important;
  width: 100% !important;
  box-sizing: border-box !important;
}

@media (max-width: 991px) {
  .page-hero-header {
    padding: 105px 20px 40px !important;
  }
}

@media (max-width: 640px) {
  .page-hero-header {
    padding: 95px 16px 32px !important;
  }
}

/* Neutral Photo Well for Scraped Packshots (prevents ugly dark-box contrast) */
.product-photo-stage {
  position: relative;
  width: 100%;
  height: 200px;
  background: #FFFFFF;
  border-bottom: 1px solid rgba(17, 26, 46, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow: hidden;
}

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

.home-article-card:hover .product-photo-stage img,
article:hover .product-photo-stage img {
  transform: scale(1.05);
}

.product-photo-fallback {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(223, 197, 138, 0.12);
  border: 1px solid rgba(223, 197, 138, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
}

/* Bento Category Media Wrap (Original High-End Craftsmanship) */
.bento-media-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: #EAE6DF;
}

.bento-media-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--transition-smooth);
}

.bento-category-card:hover .bento-media-wrap img {
  transform: scale(1.08);
}

.bento-category-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(10, 15, 28, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.15);
  text-transform: uppercase;
}


/* Grain Overlay for Editorial Film Feel */
.grain-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Custom Studio Cursor */
.custom-cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--gold);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.2s, transform 0.1s;
}

.custom-cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--gold);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.25s var(--transition-smooth), height 0.25s var(--transition-smooth), border-color 0.25s, background-color 0.25s;
}

body.cursor-hover .custom-cursor-ring {
  width: 64px;
  height: 64px;
  background-color: rgba(184, 156, 90, 0.12);
  border-color: var(--gold-light);
}

@media (pointer: coarse) {
  .custom-cursor-dot, .custom-cursor-ring {
    display: none !important;
  }
}

/* ==========================================================================
   Preloader
   ========================================================================== */
.preloader {
  position: fixed;
  inset: 0;
  background: var(--ink-deep);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: var(--text-light);
}

.preloader-seal {
  width: 72px;
  height: 88px;
  margin-bottom: 28px;
  animation: preloaderPulse 2s ease-in-out infinite;
}

@keyframes preloaderPulse {
  0%, 100% { transform: scale(1); opacity: 0.85; filter: drop-shadow(0 0 10px rgba(184,156,90,0.3)); }
  50% { transform: scale(1.06); opacity: 1; filter: drop-shadow(0 0 25px rgba(223,197,138,0.6)); }
}

.preloader-progress-track {
  width: 240px;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  margin-bottom: 18px;
}

.preloader-progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold-light));
  transition: width 0.05s linear;
}

.preloader-text-row {
  display: flex;
  justify-content: space-between;
  width: 240px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-light);
  font-family: var(--font-sans);
  font-weight: 600;
}

/* ==========================================================================
   Navigation Header
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 14px 36px;
  background: rgba(10, 15, 28, 0.95);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  transition: padding 0.25s ease, background 0.25s ease;
}

.site-header.scrolled {
  padding: 10px 36px;
  background: rgba(7, 11, 20, 0.98);
  border-bottom: 1px solid rgba(184, 156, 90, 0.25);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-seal-icon {
  width: 32px;
  height: 38px;
  transition: transform 0.3s var(--transition-smooth);
}

.brand-wrapper:hover .brand-seal-icon {
  transform: rotate(-6deg) scale(1.08);
}

.brand-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #FFFFFF;
  text-transform: uppercase;
}

.brand-subtitle-tag {
  font-size: 9px;
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold-light);
  background: rgba(184, 156, 90, 0.15);
  border: 1px solid rgba(184, 156, 90, 0.35);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-left: 6px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.82);
  transition: color 0.2s, transform 0.2s;
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width 0.25s var(--transition-smooth);
}

.nav-link:hover {
  color: #FFFFFF;
}

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

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

.live-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--gold-light);
  background: rgba(17, 26, 46, 0.8);
  border: 1px solid rgba(184, 156, 90, 0.3);
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.live-dot {
  width: 7px;
  height: 7px;
  background: #00E676;
  border-radius: 50%;
  box-shadow: 0 0 10px #00E676;
  animation: liveBlink 1.8s infinite;
}

@keyframes liveBlink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.audio-toggle-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.audio-toggle-btn:hover {
  border-color: var(--gold);
  background: rgba(184, 156, 90, 0.15);
  color: var(--gold-light);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 50%, var(--gold-dark) 100%);
  color: #0A0F1C;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 18px rgba(184, 156, 90, 0.3);
  transition: transform 0.25s var(--transition-smooth), box-shadow 0.25s;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(184, 156, 90, 0.45);
}

/* ==========================================================================
   Hero Section & WebGL Canvas
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  background: radial-gradient(circle at 65% 40%, #15223C 0%, #0D1424 50%, #070B14 100%);
  color: var(--text-light);
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding-top: 100px;
}

#three-canvas-container {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.hero-content-shell {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 60px 36px 40px;
  width: 100%;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(184, 156, 90, 0.12);
  border: 1px solid rgba(184, 156, 90, 0.4);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  color: var(--gold-light);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-kicker-dot {
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(48px, 6.8vw, 98px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  max-width: 900px;
}

.hero-headline span.gold-glow-text {
  background: linear-gradient(135deg, #FFF7EB 0%, #DFC58A 50%, #B89C5A 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subline {
  font-size: clamp(16px, 1.4vw, 21px);
  color: var(--text-light-muted);
  max-width: 640px;
  line-height: 1.6;
  margin-bottom: 44px;
  font-weight: 400;
}

.hero-actions-row {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-primary-luxury {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 60%, var(--gold-dark) 100%);
  color: #0A0F1C;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.06em;
  padding: 16px 36px;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(184, 156, 90, 0.35);
  transition: all 0.3s var(--transition-smooth);
}

.btn-primary-luxury:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 16px 40px rgba(184, 156, 90, 0.55);
}

.btn-secondary-ghost {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.05);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-weight: 600;
  font-size: 14px;
  padding: 16px 32px;
  border-radius: var(--radius-full);
  backdrop-filter: blur(10px);
  transition: all 0.3s var(--transition-smooth);
}

.btn-secondary-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--gold-light);
  color: var(--gold-light);
  transform: translateY(-3px);
}

/* Realtime Signal Ticker Strip */
.signal-ticker-strip {
  position: relative;
  z-index: 3;
  background: rgba(10, 15, 28, 0.95);
  border-top: 1px solid rgba(184, 156, 90, 0.2);
  border-bottom: 1px solid rgba(184, 156, 90, 0.2);
  padding: 14px 0;
  overflow: hidden;
  white-space: nowrap;
}

.ticker-track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: tickerSlide 35s linear infinite;
}

@keyframes tickerSlide {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-light-muted);
}

.ticker-tag {
  background: rgba(184, 156, 90, 0.2);
  color: var(--gold-light);
  font-size: 10px;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

.ticker-metric {
  color: #00E676;
  font-weight: 700;
}

/* ==========================================================================
   Section: Editorial Manifesto (Philosophy)
   ========================================================================== */
.section-manifesto {
  position: relative;
  padding: 140px 36px;
  background: var(--paper);
  color: var(--ink);
  overflow: hidden;
}

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

.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 20px;
}

.section-label::before {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--gold);
}

.manifesto-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}

.manifesto-quote {
  font-family: var(--font-serif);
  font-size: clamp(32px, 3.8vw, 54px);
  line-height: 1.18;
  font-weight: 600;
  color: var(--ink);
  position: relative;
}

.manifesto-quote em {
  font-style: italic;
  color: var(--gold-dark);
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.manifesto-cards {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.manifesto-card {
  background: var(--paper-card);
  border: 1px solid var(--line);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-subtle);
  transition: transform 0.3s var(--transition-smooth), box-shadow 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.manifesto-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gold);
  opacity: 0;
  transition: opacity 0.3s;
}

.manifesto-card:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-medium);
  border-color: var(--gold);
}

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

.card-num {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.manifesto-card h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  margin-bottom: 10px;
  color: var(--ink);
}

.manifesto-card p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.55;
}

/* ==========================================================================
   Section: 3D Bento-Grid Categories
   ========================================================================== */
.section-categories {
  padding: 120px 36px 140px;
  background: var(--paper-soft);
  position: relative;
}

.section-head-center {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 64px;
}

.section-head-center h2 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 18px;
}

.section-head-center p {
  font-size: 18px;
  color: var(--text-muted);
}

.categories-bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  perspective: 1200px;
}

.bento-category-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  transition: transform 0.4s var(--transition-smooth), box-shadow 0.4s;
  transform-style: preserve-3d;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  position: relative;
}

.bento-category-card:hover {
  box-shadow: var(--shadow-floating);
  border-color: rgba(184, 156, 90, 0.4);
}

.bento-media-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: #EAE6DF;
}

.bento-media-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--transition-smooth);
}

.bento-category-card:hover .bento-media-wrap img {
  transform: scale(1.08);
}

.bento-category-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(17, 26, 46, 0.88);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.15);
  text-transform: uppercase;
}

.bento-card-content {
  padding: 30px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.bento-meta-kicker {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--blue);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.bento-card-title {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 12px;
  line-height: 1.25;
}

.bento-card-description {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.bento-lead-product {
  background: var(--paper-soft);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid rgba(17, 26, 46, 0.05);
}

.lead-prod-info {
  display: flex;
  flex-direction: column;
}

.lead-prod-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--gold-dark);
}

.lead-prod-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
}

.bento-action-arrow {
  width: 32px;
  height: 32px;
  background: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--ink);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: transform 0.25s, background 0.25s, color 0.25s;
}

.bento-category-card:hover .bento-action-arrow {
  transform: translateX(4px);
  background: var(--gold);
  color: #FFFFFF;
}

/* ==========================================================================
   Section: Interactive Trend-Signal Engine Lab
   ========================================================================== */
.section-signal-lab {
  padding: 140px 36px;
  background: radial-gradient(circle at 50% 50%, #15223C 0%, #0D1424 70%, #080D18 100%);
  color: var(--text-light);
  position: relative;
  overflow: hidden;
}

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

.lab-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 60px;
}

.lab-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4vw, 54px);
  margin-bottom: 16px;
}

.lab-interactive-shell {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(184, 156, 90, 0.25);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-floating);
  backdrop-filter: blur(20px);
}

.lab-controls-bar {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.scenario-tab-btn {
  padding: 12px 26px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-light-muted);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  transition: all 0.3s;
}

.scenario-tab-btn.active, .scenario-tab-btn:hover {
  background: var(--gold);
  color: #0A0F1C;
  border-color: var(--gold);
  box-shadow: 0 4px 20px rgba(184, 156, 90, 0.4);
}

.lab-simulation-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 50px;
  align-items: center;
}

.signal-flow-card {
  background: rgba(10, 15, 28, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 30px;
}

.flow-step {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  position: relative;
  padding-bottom: 28px;
}

.flow-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 36px;
  left: 17px;
  width: 2px;
  height: calc(100% - 36px);
  background: rgba(184, 156, 90, 0.3);
}

.step-icon-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(184, 156, 90, 0.15);
  border: 1px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-light);
  font-weight: 800;
  font-size: 13px;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 4px;
}

.step-content p {
  font-size: 13px;
  color: var(--text-light-muted);
}

.signal-result-display {
  background: linear-gradient(145deg, rgba(26, 37, 63, 0.9) 0%, rgba(13, 20, 36, 0.95) 100%);
  border: 1px solid rgba(184, 156, 90, 0.35);
  border-radius: var(--radius-md);
  padding: 36px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.signal-metric-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: #00E676;
  background: rgba(0, 230, 118, 0.12);
  border: 1px solid rgba(0, 230, 118, 0.3);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.result-title {
  font-family: var(--font-serif);
  font-size: 26px;
  color: #FFFFFF;
  margin-bottom: 14px;
}

.result-verdict-box {
  background: rgba(0, 0, 0, 0.25);
  border-left: 3px solid var(--gold);
  padding: 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 24px;
}

.verdict-label {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 4px;
}

.verdict-text {
  font-size: 14px;
  color: #E2E8F0;
  line-height: 1.5;
}

.slider-group {
  margin-top: 24px;
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-light-muted);
  margin-bottom: 8px;
  font-weight: 600;
}

.interactive-slider {
  width: 100%;
  -webkit-appearance: none;
  height: 6px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  outline: none;
}

.interactive-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--gold);
  cursor: pointer;
  box-shadow: 0 0 12px rgba(184, 156, 90, 0.8);
}

/* ==========================================================================
   Section: Guide Anatomy (Interactive Editorial Dissection)
   ========================================================================== */
.section-guide-anatomy {
  padding: 140px 36px;
  background: var(--paper);
  color: var(--ink);
}

.anatomy-shell {
  max-width: var(--container-max);
  margin: 0 auto;
}

.anatomy-preview-card {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  overflow: hidden;
  margin-top: 50px;
}

.anatomy-header-bar {
  background: var(--ink);
  color: #FFFFFF;
  padding: 24px 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--gold);
}

.anatomy-tabs-nav {
  display: flex;
  gap: 12px;
  padding: 16px 36px;
  background: var(--paper-soft);
  border-bottom: 1px solid var(--line);
}

.anatomy-tab-btn {
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  border-radius: var(--radius-full);
  transition: all 0.25s;
}

.anatomy-tab-btn.active {
  background: var(--ink);
  color: #FFFFFF;
}

.anatomy-tab-pane {
  padding: 44px 36px;
  display: none;
}

.anatomy-tab-pane.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

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

.pro-con-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-top: 24px;
}

.pro-box, .con-box {
  padding: 24px;
  border-radius: var(--radius-md);
}

.pro-box {
  background: #EDF7ED;
  border-left: 4px solid var(--green);
}

.con-box {
  background: #FDEDED;
  border-left: 4px solid var(--red);
}

.pro-box h4, .con-box h4 {
  font-size: 16px;
  margin-bottom: 12px;
}

.pro-box h4 { color: var(--green); }
.con-box h4 { color: var(--red); }

.pro-box ul, .con-box ul {
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
}

/* ==========================================================================
   Section: Architecture & Real-Time Performance Matrix
   ========================================================================== */
.section-architecture {
  padding: 140px 36px;
  background: var(--ink-deep);
  color: var(--text-light);
  border-top: 1px solid rgba(184, 156, 90, 0.2);
}

.arch-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 60px;
}

.arch-metric-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all 0.3s;
}

.arch-metric-card:hover {
  border-color: var(--gold);
  background: rgba(184, 156, 90, 0.06);
  transform: translateY(-4px);
}

.arch-num {
  font-family: var(--font-display);
  font-size: 46px;
  font-weight: 700;
  color: var(--gold-light);
  margin-bottom: 8px;
}

.arch-label {
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.arch-desc {
  font-size: 12px;
  color: var(--text-light-muted);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--ink);
  color: var(--text-light);
  padding: 100px 36px 40px;
  border-top: 1px solid rgba(184, 156, 90, 0.25);
}

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

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  flex-wrap: wrap;
  gap: 30px;
}

.footer-brand-col {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer-seal {
  width: 48px;
  height: 58px;
}

.footer-back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--gold-light);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 0.25s;
}

.footer-back-to-top:hover {
  transform: translateY(-3px);
  color: #FFFFFF;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 40px;
  font-size: 13px;
  color: var(--text-light-muted);
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

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

/* ==========================================================================
   Interactive Category Detail Modal / Drawer
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 15, 28, 0.75);
  backdrop-filter: blur(12px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.35s var(--transition-smooth);
  display: flex;
  justify-content: flex-end;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-drawer {
  width: min(640px, 100vw);
  height: 100%;
  background: #FFFFFF;
  color: var(--ink);
  overflow-y: auto;
  padding: 48px 40px;
  transform: translateX(100%);
  transition: transform 0.4s var(--transition-smooth);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.3);
  position: relative;
}

.modal-overlay.open .modal-drawer {
  transform: translateX(0);
}

.modal-close-btn {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--paper-soft);
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.2s;
}

.modal-close-btn:hover {
  background: var(--ink);
  color: #FFFFFF;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1024px) {
  .categories-bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .manifesto-grid, .lab-simulation-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .arch-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: 12px 20px;
  }
  .nav-links {
    display: none;
  }
  .categories-bento-grid {
    grid-template-columns: 1fr;
  }
  .arch-metrics-grid {
    grid-template-columns: 1fr;
  }
  .pro-con-grid {
    grid-template-columns: 1fr;
  }
  .hero-headline {
    font-size: 42px;
  }
  .modal-drawer {
    padding: 30px 20px;
  }
}