/* ==========================================================================
   SGM INTERIOR DESIGN - LUXURY ARCHITECTURAL & INTERIOR STYLING
   GSTIN: 09DNNPG1497J1ZE | NH-24, Mehrauli, Ghaziabad - Uttar Pradesh
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-main: #0B0E14;
  --bg-secondary: #111622;
  --bg-surface: #161D2B;
  --bg-card: rgba(22, 29, 43, 0.7);
  --bg-card-hover: rgba(29, 38, 56, 0.85);
  
  --gold-primary: #C5A059;
  --gold-light: #EAD098;
  --gold-dark: #987834;
  --gold-gradient: linear-gradient(135deg, #ECCF96 0%, #C5A059 50%, #987834 100%);
  --gold-glow: rgba(197, 160, 89, 0.25);
  --gold-border: rgba(197, 160, 89, 0.35);

  --text-primary: #F8F9FA;
  --text-secondary: #BAC2D0;
  --text-muted: #7E889B;

  --accent-green: #25D366; /* WhatsApp brand */
  --accent-blue: #2979FF;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(15, 20, 30, 0.65);
  --glass-border: rgba(197, 160, 89, 0.2);

  /* Typography */
  --font-heading: 'Cinzel', serif;
  --font-serif: 'Playfair Display', serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  /* Shadows & Radii */
  --shadow-sm: 0 4px 15px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 10px 35px rgba(197, 160, 89, 0.2);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Variables Toggle Support */
[data-theme="warm-light"] {
  --bg-main: #F7F5F0;
  --bg-secondary: #EFECE4;
  --bg-surface: #E6E1D6;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(255, 255, 255, 0.95);
  --text-primary: #1C1E24;
  --text-secondary: #484E5B;
  --text-muted: #7A8191;
  --border-subtle: rgba(0, 0, 0, 0.09);
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(154, 120, 52, 0.25);
  --gold-glow: rgba(154, 120, 52, 0.15);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
  position: relative;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: var(--gold-dark);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--gold-primary);
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography Utilities */
h1, h2, h3, h4, .brand-title {
  font-family: var(--font-heading);
  letter-spacing: 0.03em;
  font-weight: 700;
  color: var(--text-primary);
}

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

.gold-gradient-text {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-light);
  background: rgba(197, 160, 89, 0.12);
  border: 1px solid var(--border-gold);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

.section-title {
  font-size: 2.35rem;
  line-height: 1.25;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Top Announcement / Info Bar */
.top-bar {
  background: rgba(11, 14, 20, 0.95);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.45rem 0;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.gst-verified-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(37, 211, 102, 0.12);
  color: #25D366;
  border: 1px solid rgba(37, 211, 102, 0.25);
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}

.gst-num-copy {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: color var(--transition-fast);
}

.gst-num-copy:hover {
  color: var(--gold-light);
}

.contact-quick-link {
  color: var(--text-secondary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition-fast);
}

.contact-quick-link:hover {
  color: var(--gold-light);
}

/* Sticky Main Navigation */
.main-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.5rem;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 48px;
  width: auto;
  max-width: 72px;
  border-radius: var(--radius-sm);
  object-fit: contain;
  background: #FFFFFF;
  padding: 3px 6px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35), 0 0 14px rgba(197, 160, 89, 0.25);
  border: 1.5px solid rgba(197, 160, 89, 0.6);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
  flex-shrink: 0;
}

.brand-logo-wrap:hover .brand-logo-img {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5), 0 0 20px rgba(197, 160, 89, 0.45);
}

.footer-logo-img {
  height: 56px;
  width: auto;
  max-width: 84px;
  border-radius: var(--radius-sm);
  object-fit: contain;
  background: #FFFFFF;
  padding: 4px 7px;
  box-shadow: 0 0 20px rgba(197, 160, 89, 0.35);
  border: 1.5px solid rgba(197, 160, 89, 0.6);
  flex-shrink: 0;
}

.brand-emblem {
  width: 44px;
  height: 44px;
  background: var(--gold-gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0B0E14;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-gold);
}

.brand-text-block {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
}

.brand-tagline {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-light);
  font-weight: 600;
}

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--gold-light);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  border-color: var(--gold-primary);
  color: var(--gold-primary);
}

.lang-btn {
  background: rgba(197, 160, 89, 0.1);
  border: 1px solid var(--border-gold);
  color: var(--gold-light);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  background: var(--gold-primary);
  color: #0B0E14;
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Primary CTA Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-smooth);
  border: none;
}

.btn-gold {
  background: var(--gold-gradient);
  color: #0B0E14;
  box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(197, 160, 89, 0.4);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-gold);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}

.btn-glass:hover {
  background: rgba(197, 160, 89, 0.15);
  border-color: var(--gold-light);
  color: var(--gold-light);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25D366;
  color: #FFFFFF;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  background: #20BA59;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.5);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: 4rem 0 6rem 0;
  overflow: hidden;
}

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

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.04);
  transition: transform 12s ease;
  filter: brightness(0.65) contrast(1.05);
}

.hero-section:hover .hero-bg-img {
  transform: scale(1.08);
}

.hero-overlay-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(11, 14, 20, 0.95) 0%,
    rgba(11, 14, 20, 0.8) 45%,
    rgba(11, 14, 20, 0.45) 100%
  );
  z-index: 1;
}

.hero-content-wrap {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(197, 160, 89, 0.15);
  border: 1px solid var(--border-gold);
  color: var(--gold-light);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-headline {
  font-size: 3.5rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 2.25rem;
}

.hero-cta-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

/* Floating Trust Cards in Hero */
.hero-badges-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.hero-stat-card {
  background: rgba(15, 20, 30, 0.7);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--gold-primary);
  backdrop-filter: blur(12px);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.hero-stat-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-3px);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--gold-light);
  line-height: 1.1;
  display: block;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
  display: block;
}

/* ==========================================================================
   INTERACTIVE COST CALCULATOR SECTION (HIGH CONVERSION)
   ========================================================================== */
.calculator-section {
  padding: 6.5rem 0;
  background: var(--bg-secondary);
  position: relative;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: start;
}

.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.calc-group {
  margin-bottom: 2rem;
}

.calc-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.9rem;
}

.calc-pill-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 0.75rem;
}

.calc-pill {
  position: relative;
}

.calc-pill input[type="radio"],
.calc-pill input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.calc-pill-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 0.6rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.calc-pill-btn span.title {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-primary);
}

.calc-pill-btn span.sub {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.calc-pill input:checked + .calc-pill-btn {
  background: rgba(197, 160, 89, 0.15);
  border-color: var(--gold-primary);
  box-shadow: 0 0 15px rgba(197, 160, 89, 0.2);
}

.calc-pill input:checked + .calc-pill-btn span.title {
  color: var(--gold-light);
}

/* Range Slider Styling */
.range-slider-wrap {
  padding: 0.5rem 0;
}

.custom-range {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  outline: none;
  -webkit-appearance: none;
}

.custom-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gold-gradient);
  cursor: pointer;
  box-shadow: 0 0 10px rgba(197, 160, 89, 0.5);
  border: 2px solid #0B0E14;
}

.calc-summary-card {
  background: linear-gradient(145deg, rgba(22, 29, 43, 0.95), rgba(15, 20, 30, 0.95));
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  position: sticky;
  top: 6rem;
  box-shadow: var(--shadow-gold);
}

.summary-title {
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold-light);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
}

.estimate-price-badge {
  background: rgba(197, 160, 89, 0.08);
  border: 1px dashed var(--border-gold);
  padding: 1.5rem 1rem;
  border-radius: var(--radius-md);
  text-align: center;
  margin-bottom: 1.5rem;
}

.price-small {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.price-main {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--gold-light);
  line-height: 1.1;
  margin: 0.35rem 0;
}

.price-sub {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.breakdown-list {
  list-style: none;
  margin-bottom: 1.75rem;
}

.breakdown-item {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.breakdown-item strong {
  color: var(--text-primary);
}

/* ==========================================================================
   BEFORE & AFTER SLIDER
   ========================================================================== */
.before-after-section {
  padding: 6.5rem 0;
  background: var(--bg-main);
}

.comparison-wrapper {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-gold);
  user-select: none;
  aspect-ratio: 16 / 9;
}

.comparison-image-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.image-after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-before-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 50%; /* modified by JS */
  height: 100%;
  overflow: hidden;
  z-index: 2;
  border-right: 2px solid var(--gold-light);
}

.image-before {
  position: absolute;
  top: 0;
  left: 0;
  width: 1000px; /* matched to container */
  max-width: none;
  height: 100%;
  object-fit: cover;
}

.slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 44px;
  margin-left: -22px;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.handle-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gold-gradient);
  border: 3px solid #0B0E14;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0B0E14;
  font-weight: 700;
  font-size: 1rem;
}

.label-badge {
  position: absolute;
  top: 1.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  z-index: 4;
  pointer-events: none;
}

.label-before {
  left: 1.5rem;
  background: rgba(0, 0, 0, 0.7);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.label-after {
  right: 1.5rem;
  background: var(--gold-gradient);
  color: #0B0E14;
  box-shadow: var(--shadow-gold);
}

.comparison-slider-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  z-index: 10;
}

/* ==========================================================================
   SERVICES SECTION (Home Interior, Modular Kitchen, Wardrobes)
   ========================================================================== */
.services-section {
  padding: 6.5rem 0;
  background: var(--bg-secondary);
}

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

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

.service-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-8px);
  box-shadow: var(--shadow-gold);
}

.service-card-media {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.service-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.service-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(11, 14, 20, 0.85);
  border: 1px solid var(--border-gold);
  color: var(--gold-light);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  backdrop-filter: blur(8px);
}

.service-card-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-card-title {
  font-size: 1.45rem;
  margin-bottom: 0.85rem;
}

.service-card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.service-features-list {
  list-style: none;
  margin-top: auto;
  margin-bottom: 1.75rem;
}

.service-features-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.service-features-list li i {
  color: var(--gold-primary);
  font-size: 0.8rem;
}

/* ==========================================================================
   PORTFOLIO GALLERY
   ========================================================================== */
.gallery-section {
  padding: 6.5rem 0;
  background: var(--bg-main);
}

.gallery-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--gold-gradient);
  color: #0B0E14;
  border-color: var(--gold-primary);
  box-shadow: var(--shadow-gold);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 11;
  cursor: pointer;
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-smooth);
}

.gallery-item:hover {
  border-color: var(--border-gold);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.gallery-item:hover .gallery-img {
  transform: scale(1.08);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 14, 20, 0.95) 0%, rgba(11, 14, 20, 0.2) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-cat {
  font-size: 0.72rem;
  color: var(--gold-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
}

.gallery-item-title {
  font-size: 1.15rem;
  color: #FFFFFF;
  margin: 0.25rem 0 0.5rem 0;
}

.gallery-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--gold-light);
  font-weight: 600;
}

/* ==========================================================================
   WHY CHOOSE SGM & PROCESS
   ========================================================================== */
.why-section {
  padding: 6.5rem 0;
  background: var(--bg-secondary);
}

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

.feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 2rem 1.5rem;
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--transition-smooth);
}

.feature-box:hover {
  border-color: var(--border-gold);
  transform: translateY(-5px);
}

.feature-icon-wrap {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.25rem auto;
  border-radius: 50%;
  background: rgba(197, 160, 89, 0.12);
  border: 1px solid var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--gold-light);
}

.feature-box-title {
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
}

.feature-box-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Process Timeline */
.process-steps-wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
  margin-top: 3rem;
}

.step-card {
  position: relative;
  background: rgba(22, 29, 43, 0.5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
}

.step-num {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: rgba(197, 160, 89, 0.25);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.step-title {
  font-size: 1.1rem;
  color: var(--gold-light);
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Materials & Hardware Banner */
.brand-partners-bar {
  margin-top: 4rem;
  padding: 2rem;
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  text-align: center;
}

.brand-partners-title {
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 1.5rem;
}

.brand-logos-row {
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 2rem;
}

.partner-tag {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.partner-tag:hover {
  color: var(--gold-light);
}

/* ==========================================================================
   TESTIMONIALS SECTION
   ========================================================================== */
.testimonials-section {
  padding: 6.5rem 0;
  background: var(--bg-main);
}

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

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 2.25rem;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-smooth);
}

.review-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-5px);
}

.review-stars {
  color: #FFB800;
  font-size: 1rem;
  margin-bottom: 1rem;
  display: flex;
  gap: 0.25rem;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  font-style: italic;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.reviewer-profile {
  display: flex;
  align-items: center;
  gap: 1rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
}

.reviewer-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gold-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0B0E14;
  font-weight: 700;
  font-size: 1rem;
}

.reviewer-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.reviewer-location {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ==========================================================================
   CONTACT & CONSULTATION SECTION
   ========================================================================== */
.contact-section {
  padding: 6.5rem 0;
  background: var(--bg-secondary);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: stretch;
}

.contact-info-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.info-cards-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 2rem 0;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(197, 160, 89, 0.12);
  border: 1px solid var(--border-gold);
  color: var(--gold-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.info-details h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.info-details p, .info-details a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  text-decoration: none;
}

.info-details a:hover {
  color: var(--gold-light);
}

/* Verified Legal GST Certificate Card */
.gst-official-card {
  background: rgba(37, 211, 102, 0.06);
  border: 1px solid rgba(37, 211, 102, 0.25);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.gst-meta h5 {
  font-size: 0.85rem;
  color: #25D366;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.2rem;
}

.gst-meta code {
  font-family: monospace;
  font-size: 1.1rem;
  color: #FFFFFF;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.copy-gst-btn {
  background: rgba(37, 211, 102, 0.15);
  border: 1px solid rgba(37, 211, 102, 0.3);
  color: #25D366;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.copy-gst-btn:hover {
  background: #25D366;
  color: #0B0E14;
}

/* Booking Form */
.booking-form-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 2.75rem;
  box-shadow: var(--shadow-gold);
}

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

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--gold-primary);
  background: rgba(197, 160, 89, 0.06);
  box-shadow: 0 0 10px rgba(197, 160, 89, 0.2);
}

.form-select option {
  background: #111622;
  color: #FFFFFF;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-submit-btn {
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
  margin-top: 0.5rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.main-footer {
  background: #06080B;
  border-top: 1px solid var(--border-subtle);
  padding: 4.5rem 0 2rem 0;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  letter-spacing: 0.05em;
}

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

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

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   FLOATING ACTION BUTTONS (CALL & WHATSAPP)
   ========================================================================== */
.floating-actions {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  z-index: 999;
}

.float-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  text-decoration: none;
  font-size: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-smooth);
  position: relative;
}

.float-btn:hover {
  transform: scale(1.1);
}

.float-btn.whatsapp {
  background: #25D366;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.float-btn.call {
  background: var(--gold-gradient);
  color: #0B0E14;
  box-shadow: var(--shadow-gold);
}

.float-tooltip {
  position: absolute;
  right: 65px;
  background: rgba(11, 14, 20, 0.95);
  color: #FFFFFF;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(10px);
  transition: all var(--transition-fast);
  border: 1px solid var(--border-gold);
}

.float-btn:hover .float-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* ==========================================================================
   MODAL LIGHTBOX
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-smooth);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  max-width: 800px;
  width: 100%;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-gold);
  transform: scale(0.95);
  transition: transform var(--transition-smooth);
}

.modal-backdrop.active .modal-box {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(0, 0, 0, 0.6);
  border: none;
  color: #FFFFFF;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  z-index: 10;
  transition: background var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--gold-primary);
  color: #0B0E14;
}

.modal-media-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.modal-media-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-body {
  padding: 1.75rem;
}

.modal-title {
  font-size: 1.45rem;
  margin-bottom: 0.5rem;
}

.modal-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

/* Toast Notifications */
.toast-notice {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-surface);
  border: 1px solid var(--gold-primary);
  color: var(--text-primary);
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-gold);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 3000;
  font-size: 0.9rem;
  font-weight: 600;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast-notice.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ==========================================================================
   RESPONSIVE DESIGN (MOBILE & TABLET)
   ========================================================================== */
@media (max-width: 1024px) {
  .calc-grid {
    grid-template-columns: 1fr;
  }
  .calc-summary-card {
    position: static;
  }
  .services-grid, .gallery-grid, .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid, .process-steps-wrap {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-headline {
    font-size: 2.35rem;
  }
  .hero-badges-row {
    grid-template-columns: 1fr;
  }
  .services-grid, .gallery-grid, .reviews-grid {
    grid-template-columns: 1fr;
  }
  .features-grid, .process-steps-wrap {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-surface);
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
  }
  .nav-links.mobile-open {
    display: flex;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .comparison-wrapper {
    aspect-ratio: 4 / 3;
  }
  .image-before {
    width: 100vw;
  }
  .top-bar-left, .top-bar-right {
    justify-content: center;
    width: 100%;
    text-align: center;
  }
  .calc-card, .booking-form-panel, .contact-info-panel {
    padding: 1.5rem;
  }
}