/* ==========================================================================
   GOLDEN AGE | GROUP OF COMPANIES
   Modern Corporate & Multi-Sector Enterprise Theme
   Sectors: Construction | Furniture | Interiors | IT Systems | Timber
   ========================================================================== */

:root {
  --bg-dark: #080a0e;
  --bg-surface: #0f131a;
  --bg-card: #141923;
  --bg-card-hover: #1b2230;
  --bg-glass: rgba(18, 24, 34, 0.85);
  
  --gold-primary: #d4af37;
  --gold-light: #f3d478;
  --gold-glow: rgba(212, 175, 55, 0.2);
  --blue-tech: #38bdf8;
  --blue-glow: rgba(56, 189, 248, 0.15);
  --emerald-accent: #10b981;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(212, 175, 55, 0.35);
  --border-highlight: rgba(212, 175, 55, 0.45);
  
  --font-heading: 'Outfit', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Space Mono', monospace, Courier;

  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  font-size: 16px;
  overflow-x: hidden;
  width: 100%;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  width: 100%;
  -webkit-text-size-adjust: 100%;
}

/* Modern Corporate Architectural Atmosphere (No Wood Texture) */
.corporate-atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: 
    radial-gradient(circle at 18% 15%, rgba(212, 175, 55, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 82% 55%, rgba(56, 189, 248, 0.06) 0%, transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(16, 185, 129, 0.04) 0%, transparent 45%),
    linear-gradient(180deg, rgba(8, 10, 14, 0.8) 0%, rgba(8, 10, 14, 0.98) 100%);
}

.corporate-grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.035;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.2) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* Content Container */
.site-wrapper {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navigation */
.header-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.8rem 0;
  border-bottom: 1px solid var(--border-subtle);
  gap: 1rem;
}

.brand-emblem {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  color: var(--text-primary);
  min-width: 0;
}

.brand-logo-img {
  height: 52px;
  width: auto;
  max-width: 60px;
  object-fit: contain;
  filter: drop-shadow(0 3px 12px rgba(212, 175, 55, 0.4));
  transition: var(--transition-smooth);
}

.brand-emblem:hover .brand-logo-img {
  transform: scale(1.06);
  filter: drop-shadow(0 6px 18px rgba(212, 175, 55, 0.65));
}

.brand-info {
  min-width: 0;
}

.brand-info h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.2vw, 1.55rem);
  letter-spacing: 0.12em;
  font-weight: 700;
  text-transform: uppercase;
  color: #fff;
  white-space: nowrap;
}

.brand-info span {
  font-size: clamp(0.68rem, 1.1vw, 0.76rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-primary);
  display: block;
  white-space: nowrap;
  font-weight: 500;
}

.header-actions {
  flex-shrink: 0;
}

.origin-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(20, 26, 36, 0.8);
  border: 1px solid var(--border-subtle);
  color: var(--gold-light);
  padding: 0.45rem 1rem;
  border-radius: 999px;
  font-size: 0.74rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  backdrop-filter: blur(8px);
}

/* Hero Section */
.hero-section {
  padding: 4.5rem 0 3.5rem;
  text-align: center;
  position: relative;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.45rem 1.25rem;
  background: rgba(20, 26, 36, 0.85);
  border: 1px solid var(--border-gold);
  border-radius: 999px;
  margin-bottom: 1.8rem;
  font-size: clamp(0.7rem, 1.3vw, 0.8rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-light);
  backdrop-filter: blur(12px);
  max-width: 100%;
  line-height: 1.4;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.status-indicator {
  position: relative;
  display: inline-flex;
  width: 8px;
  height: 8px;
  flex-shrink: 0;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--gold-primary);
  border-radius: 50%;
}

.status-ping {
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid var(--gold-primary);
  animation: pingRing 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes pingRing {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.1rem, 5.2vw, 4.4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.35rem;
  color: #fff;
  max-width: 1020px;
  margin-left: auto;
  margin-right: auto;
  word-wrap: break-word;
}

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

.hero-subtitle {
  font-size: clamp(0.95rem, 1.35vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 3rem;
  font-weight: 400;
  line-height: 1.8;
}

/* Modern Launch Countdown Clock */
.countdown-container {
  max-width: 780px;
  width: 100%;
  margin: 0 auto;
  background: linear-gradient(180deg, rgba(22, 28, 40, 0.75) 0%, rgba(13, 17, 25, 0.95) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 2.2rem 1.6rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
}

.countdown-header {
  font-size: clamp(0.72rem, 1.2vw, 0.82rem);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-primary);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-weight: 600;
}

.countdown-header::before,
.countdown-header::after {
  content: '';
  height: 1px;
  width: 45px;
  background: linear-gradient(90deg, transparent, var(--border-gold), transparent);
  display: inline-block;
}

.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.15rem;
}

.timer-card {
  background: rgba(10, 13, 19, 0.92);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 1.25rem 0.4rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
  text-align: center;
}

.timer-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold-primary), transparent);
  opacity: 0.6;
}

.timer-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-gold);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.6), 0 0 20px var(--gold-glow);
}

.timer-value {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  color: #fff;
  line-height: 1;
  margin-bottom: 0.35rem;
  letter-spacing: -0.02em;
}

.timer-label {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  font-weight: 600;
}

/* Hero Showcase Banner Frame (Panoramic Division Visual) */
.hero-banner-container {
  max-width: 1060px;
  width: 100%;
  margin: 3.2rem auto 0;
  position: relative;
}

.hero-banner-frame {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border-gold);
  background: #0f131a;
  box-shadow: 
    0 25px 60px rgba(0, 0, 0, 0.85),
    0 0 40px rgba(212, 175, 55, 0.12);
  transition: var(--transition-smooth);
}

.hero-banner-frame:hover {
  border-color: var(--gold-light);
  box-shadow: 
    0 30px 75px rgba(0, 0, 0, 0.95),
    0 0 50px rgba(212, 175, 55, 0.25);
}

.hero-banner-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-banner-frame:hover .hero-banner-image {
  transform: scale(1.015);
}

.banner-tagline {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1.1rem;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-light);
  gap: 0.85rem;
  font-weight: 600;
}

.banner-tagline::before,
.banner-tagline::after {
  content: '';
  height: 1px;
  width: 45px;
  background: linear-gradient(90deg, transparent, var(--border-gold), transparent);
  display: inline-block;
}

/* Sections */
.section-wrapper {
  padding: 4.8rem 0;
  border-top: 1px solid var(--border-subtle);
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-primary);
  margin-bottom: 0.6rem;
  display: inline-block;
  font-weight: 600;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 0.85rem;
  line-height: 1.25;
}

.section-desc {
  color: var(--text-secondary);
  font-size: clamp(0.9rem, 1.15vw, 1rem);
  font-weight: 400;
  line-height: 1.7;
}

/* Transformation Timeline */
.stages-timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.2rem;
  position: relative;
}

.stage-step {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 1.6rem 1.3rem;
  position: relative;
  transition: var(--transition-smooth);
}

.stage-step:hover {
  transform: translateY(-3px);
  border-color: var(--border-gold);
  background: var(--bg-card);
}

.stage-step.active {
  border-color: var(--gold-primary);
  background: linear-gradient(180deg, rgba(25, 32, 45, 0.8) 0%, rgba(15, 19, 27, 0.95) 100%);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 24px var(--gold-glow);
}

.stage-number {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-bottom: 0.9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
}

.stage-badge {
  font-size: 0.65rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.stage-badge.done {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.5);
}

.stage-badge.current {
  background: rgba(212, 175, 55, 0.2);
  color: var(--gold-light);
  border: 1px solid var(--gold-primary);
  animation: pulseBadge 2s infinite;
}

.stage-badge.pending {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
}

.stage-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
  color: #fff;
}

.stage-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.stage-progress-bar {
  margin-top: 1.1rem;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  overflow: hidden;
}

.stage-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #38bdf8, var(--gold-primary));
  border-radius: 2px;
  transition: width 1s ease;
}

/* Five Core Pillars Explorer (Corporate Glass Matrix) */
.specimen-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 2rem;
  align-items: stretch;
  background: linear-gradient(135deg, rgba(20, 26, 38, 0.85) 0%, rgba(13, 17, 24, 0.95) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: 22px;
  padding: 2.2rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(16px);
}

.specimen-tabs {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  justify-content: center;
}

.specimen-tab-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.15rem;
  background: rgba(16, 21, 30, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  transition: var(--transition-smooth);
  width: 100%;
}

.specimen-tab-btn:hover {
  background: rgba(26, 34, 48, 0.85);
  border-color: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.specimen-tab-btn.active {
  background: linear-gradient(90deg, rgba(35, 46, 66, 0.95) 0%, rgba(19, 25, 36, 0.98) 100%);
  border-color: var(--gold-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4), 0 0 16px var(--gold-glow);
}

.tab-title-group {
  min-width: 0;
}

.tab-title-group h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.tab-title-group span {
  font-size: 0.73rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.specimen-tab-btn.active .tab-title-group span {
  color: var(--gold-light);
}

.tab-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--text-muted);
  flex-shrink: 0;
  margin-left: 0.75rem;
  transition: var(--transition-smooth);
}

.specimen-tab-btn.active .tab-indicator {
  background: var(--gold-primary);
  border-color: var(--gold-primary);
  box-shadow: 0 0 10px var(--gold-primary);
}

/* Division Specimen Display Card */
.specimen-display {
  background: #0d1118;
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
}

.specimen-visual {
  height: 220px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 1.25rem;
  transition: background 0.5s ease;
}

.specimen-grain-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
  pointer-events: none;
}

.specimen-floating-tag {
  position: relative;
  z-index: 2;
  background: rgba(11, 15, 22, 0.9);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-gold);
  padding: 0.35rem 0.85rem;
  border-radius: 6px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-light);
  font-weight: 600;
  max-width: 100%;
}

.specimen-details {
  padding: 1.6rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.specimen-name {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.specimen-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.4rem;
  flex: 1;
}

.specimen-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border-subtle);
}

.spec-item label {
  display: block;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
  font-weight: 600;
}

.spec-item span {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  line-height: 1.4;
}

/* Cross-Sector Capabilities */
.collection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.6rem;
}

.collection-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 18px;
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.collection-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-gold);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.65), 0 0 20px var(--gold-glow);
}

.card-image-wrap {
  height: 200px;
  position: relative;
  overflow: hidden;
  background: #11151f;
}

.card-graphic {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.collection-card:hover .card-graphic {
  transform: scale(1.06);
}

.card-pill {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(13, 17, 24, 0.9);
  border: 1px solid var(--border-subtle);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  color: var(--gold-light);
  backdrop-filter: blur(8px);
  font-weight: 600;
}

.card-content {
  padding: 1.6rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.22rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.55rem;
  line-height: 1.35;
}

.card-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex: 1;
}

.card-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.feature-chip {
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  color: var(--text-muted);
  font-weight: 500;
}

/* Corporate Philosophy Banner */
.philosophy-banner {
  margin: 1.5rem 0;
  background: radial-gradient(circle at center, rgba(26, 34, 48, 0.85) 0%, rgba(13, 17, 24, 0.98) 100%);
  border: 1px solid var(--border-gold);
  border-radius: 20px;
  padding: 3.2rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.quote-icon {
  width: 36px;
  height: 36px;
  color: var(--gold-primary);
  opacity: 0.85;
  margin: 0 auto 1.35rem;
}

.philosophy-quote {
  font-family: var(--font-heading);
  font-size: clamp(1.15rem, 2.2vw, 1.7rem);
  font-weight: 500;
  max-width: 860px;
  margin: 0 auto 1.4rem;
  color: #fff;
  line-height: 1.6;
}

.philosophy-author {
  font-size: 0.82rem;
  font-family: var(--font-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-light);
  font-weight: 600;
}

/* Footer */
.footer-wrap {
  padding: 3.8rem 0 2.2rem;
  border-top: 1px solid var(--border-subtle);
  display: grid;
  grid-template-columns: 1.6fr 1.1fr 1fr;
  gap: 2.5rem;
}

.footer-brand-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 0.85rem;
}

.footer-logo-img {
  height: 44px;
  width: auto;
  max-width: 50px;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(212, 175, 55, 0.35));
}

.footer-brand h3 {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  letter-spacing: 0.1em;
  color: #fff;
  text-transform: uppercase;
  font-weight: 700;
}

.footer-brand p {
  font-size: 0.86rem;
  color: var(--text-muted);
  max-width: 340px;
  line-height: 1.65;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-primary);
  margin-bottom: 1.1rem;
  font-weight: 600;
}

.footer-info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-info-list li {
  color: var(--text-secondary);
  font-size: 0.86rem;
  line-height: 1.5;
}

/* 4 Social Icons Grid */
.social-icons-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.social-icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(20, 26, 36, 0.85);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.social-icon-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  transition: var(--transition-smooth);
}

.social-icon-btn:hover {
  background: var(--gold-primary);
  border-color: var(--gold-primary);
  color: #080a0e;
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(212, 175, 55, 0.4);
}

.social-icon-btn:hover svg {
  transform: scale(1.1);
}

/* Footer Bottom & Clean Vintsol Link */
.footer-bottom {
  padding: 1.8rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  gap: 1rem;
  flex-wrap: wrap;
}

.vintsol-link {
  color: var(--gold-primary);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: var(--transition-smooth);
}

.vintsol-link:hover {
  color: #fff;
  text-decoration: underline;
  text-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS (Mobile-First Optimization)
   ========================================================================== */

/* Medium Desktops and Laptops (<= 1024px) */
@media (max-width: 1024px) {
  .specimen-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
    padding: 1.75rem;
  }
  .footer-wrap {
    grid-template-columns: 1fr 1fr;
  }
}

/* Tablets & Large Mobile Devices (<= 768px) */
@media (max-width: 768px) {
  .site-wrapper {
    padding: 0 1.25rem;
  }

  .header-nav {
    padding: 1.4rem 0;
  }

  .hero-section {
    padding: 3.5rem 0 2.5rem;
  }

  .countdown-container {
    padding: 1.6rem 1rem;
    border-radius: 18px;
  }

  .countdown-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .timer-card {
    padding: 1rem 0.35rem;
  }

  .hero-banner-container {
    margin-top: 2.2rem;
  }

  .hero-banner-frame {
    border-radius: 14px;
  }

  .banner-tagline {
    font-size: 0.68rem;
    letter-spacing: 0.14em;
  }

  .stages-timeline {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .collection-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .philosophy-banner {
    padding: 2.4rem 1.4rem;
  }

  .footer-wrap {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 0.75rem;
  }
}

/* Small Smart Phones (<= 480px) */
@media (max-width: 480px) {
  .site-wrapper {
    padding: 0 0.9rem;
  }

  .header-nav {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.85rem;
    padding: 1.2rem 0;
  }

  .brand-emblem {
    flex-direction: column;
    text-align: center;
    gap: 0.6rem;
  }

  .brand-logo-img {
    height: 42px;
  }

  .status-badge {
    padding: 0.38rem 0.85rem;
    font-size: 0.65rem;
    letter-spacing: 0.06em;
    width: 100%;
  }

  .hero-title {
    font-size: clamp(1.8rem, 8vw, 2.35rem);
    margin-bottom: 1.1rem;
  }

  .hero-subtitle {
    font-size: 0.88rem;
    line-height: 1.7;
    margin-bottom: 2.2rem;
  }

  .countdown-header::before,
  .countdown-header::after {
    width: 20px;
  }

  .countdown-grid {
    gap: 0.6rem;
  }

  .timer-value {
    font-size: 1.85rem;
  }

  .timer-label {
    font-size: 0.62rem;
  }

  .hero-banner-container {
    margin-top: 1.8rem;
  }

  .hero-banner-frame {
    border-radius: 12px;
  }

  .banner-tagline {
    font-size: 0.62rem;
    letter-spacing: 0.1em;
    gap: 0.4rem;
  }

  .banner-tagline::before,
  .banner-tagline::after {
    width: 20px;
  }

  .section-wrapper {
    padding: 3.5rem 0;
  }

  .specimen-grid {
    padding: 1.2rem 0.85rem;
    border-radius: 16px;
  }

  .specimen-tab-btn {
    padding: 0.85rem 0.95rem;
  }

  .tab-title-group h4 {
    font-size: 0.92rem;
  }

  .tab-title-group span {
    font-size: 0.68rem;
  }

  .specimen-visual {
    height: 180px;
    padding: 1rem;
  }

  .specimen-details {
    padding: 1.2rem;
  }

  .specimen-name {
    font-size: 1.2rem;
  }

  .specimen-specs-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .card-image-wrap {
    height: 170px;
  }

  .card-content {
    padding: 1.25rem;
  }

  .philosophy-banner {
    padding: 2rem 1rem;
    border-radius: 16px;
  }

  .footer-brand-header {
    justify-content: flex-start;
  }

  .footer-logo-img {
    height: 38px;
  }

  .social-icons-container {
    justify-content: flex-start;
  }
}