/* ==========================================================================
   CHIRAG GEMS PVT. LTD. — B2B DIAMOND MANUFACTURING DESIGN SYSTEM
   Source of Truth: ANTIGRAVITY_CHIRAG_GEMS_WEBSITE.md
   Aesthetic: Luxury Minimalism + Editorial Precision + Industrial Discipline
   ========================================================================== */

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

:root {
  /* Core Luxury Dark Palette */
  --color-bg: #0B0B0D;
  --color-bg-alt: #0F1014;
  --color-surface: #131418;
  --color-surface-elevated: #1A1B22;
  --color-surface-card: #15161C;
  --color-surface-hover: #21232C;

  /* Typography */
  --color-text: #F5F3EF;
  --color-text-secondary: #C4C1B9;
  --color-text-muted: #8E8C86;
  --color-text-dim: #5A5853;

  /* Accents */
  --color-accent: #C9A96A;
  --color-accent-soft: #E3D0A5;
  --color-accent-glow: rgba(201, 169, 106, 0.2);
  --color-accent-dark: #8F7239;

  /* Diamond Tech & Highlight Blues */
  --color-diamond: #4A90E2;
  --color-diamond-cyan: #64B5F6;
  --color-diamond-glow: rgba(74, 144, 226, 0.18);
  --color-nav-active: #5E93C5;

  /* Borders & Dividers */
  --color-border: #26272F;
  --color-border-subtle: #1C1D24;
  --color-border-highlight: #3D3F4D;

  /* Functional Status */
  --color-success: #34D399;
  --color-error: #F87171;
  --color-warning: #FBBF24;

  /* Fonts */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Sizing & Layout */
  --container-max: 1360px;
  --container-wide: 1600px;
  --nav-height: 88px;
  --radius-xs: 3px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 9999px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-elevated: 0 12px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 35px rgba(201, 169, 106, 0.15);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  background-color: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Accessibility Focus */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

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

/* Typography Utility */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.2;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

p {
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

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

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

/* ==========================================================================
   HEADER & NAVBAR (Matches Screenshot 1 & 2)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 100;
  transition: background-color var(--transition-normal), backdrop-filter var(--transition-normal), border-color var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background-color: rgba(11, 11, 13, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-subtle);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Brand Logo */
.brand-logo-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 60px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.5));
  transition: transform var(--transition-fast);
}

.brand-logo-link:hover .brand-logo-img {
  transform: scale(1.02);
}

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

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
  line-height: 1.1;
}

.brand-subtitle {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent-soft);
  margin-top: 2px;
}

/* Center Desktop Navigation Links */
.desktop-nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
  list-style: none;
}

.desktop-nav-link {
  font-size: 0.82rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-secondary);
  position: relative;
  padding: 0.4rem 0;
  transition: color var(--transition-fast);
}

.desktop-nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width var(--transition-normal);
}

.desktop-nav-link:hover,
.desktop-nav-link.active {
  color: var(--color-text);
}

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

/* Header Action Buttons (Matching Screenshot 1) */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.6rem;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-pill-inquiry {
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--color-text);
  background-color: rgba(255, 255, 255, 0.03);
}

.btn-pill-inquiry:hover {
  border-color: var(--color-accent);
  background-color: var(--color-accent-glow);
  color: var(--color-accent-soft);
  transform: translateY(-1px);
}

.btn-pill-signin {
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--color-text-muted);
  background-color: transparent;
}

.btn-pill-signin:hover {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--color-text);
}

/* 9-Dot Menu Button (Screenshot 1 & 2) */
.menu-grid-btn {
  width: 44px;
  height: 44px;
  display: grid;
  grid-template-columns: repeat(3, 4px);
  grid-template-rows: repeat(3, 4px);
  gap: 4px;
  align-content: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: transparent;
  transition: all var(--transition-fast);
  padding: 8px;
  border: 1px solid transparent;
}

.menu-grid-btn span {
  width: 4px;
  height: 4px;
  background-color: #6D849E;
  border-radius: 1px;
  transition: all var(--transition-fast);
}

.menu-grid-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
}

.menu-grid-btn:hover span {
  background-color: var(--color-accent-soft);
}

/* ==========================================================================
   FULLSCREEN OVERLAY MENU DRAWER (Matches Screenshot 2)
   ========================================================================== */
.overlay-menu-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #0E1720;
  background: radial-gradient(circle at 80% 20%, #152230 0%, #0B121A 70%, #080D13 100%);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.overlay-menu-drawer.is-open {
  opacity: 1;
  visibility: visible;
}

.drawer-header {
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.drawer-content {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 4rem 0;
  min-height: calc(100vh - var(--nav-height));
}

/* Left Navigation Links in Drawer */
.drawer-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.drawer-nav-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.drawer-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #8CA3BA;
  transition: all var(--transition-fast);
}

.drawer-nav-link .chevron {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: #4D6B88;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.drawer-nav-link:hover,
.drawer-nav-link.active {
  color: #FFFFFF;
  transform: translateX(6px);
}

.drawer-nav-link:hover .chevron,
.drawer-nav-link.active .chevron {
  color: var(--color-accent-soft);
  transform: translateX(4px);
}

/* Right Column: Office Information (Screenshot 2) */
.drawer-office-info {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  padding-left: 4rem;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.office-block h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 400;
  color: #D3DEE9;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
}

.office-detail-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: #8EA4B8;
  margin-bottom: 0.75rem;
}

.office-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  color: #5D7A94;
}

.office-detail-item a:hover {
  color: var(--color-accent-soft);
}

/* Close button */
.drawer-close-btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: #8EA4B8;
  font-size: 1.8rem;
  transition: all var(--transition-fast);
}

.drawer-close-btn:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.05);
}

/* ==========================================================================
   HERO SECTION (Matches Screenshot 1)
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  padding-top: var(--nav-height);
  display: flex;
  align-items: center;
  background-color: var(--color-bg);
  overflow: hidden;
}

.hero-bg-accent {
  position: absolute;
  top: 10%;
  right: 15%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(62, 128, 237, 0.08) 0%, rgba(201, 169, 106, 0.04) 45%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  align-items: center;
  gap: 3rem;
  position: relative;
  z-index: 2;
  padding: 3rem 0;
}

/* Hero Left Content */
.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background: rgba(201, 169, 106, 0.08);
  border: 1px solid rgba(201, 169, 106, 0.25);
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent-soft);
  margin-bottom: 1.8rem;
  align-self: flex-start;
}

.hero-pill-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
}

.hero-title {
  font-size: clamp(2.8rem, 4.5vw, 4.2rem);
  font-weight: 400;
  line-height: 1.12;
  color: #FFFFFF;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-title .serif-emphasis {
  font-style: italic;
  color: var(--color-accent-soft);
  font-weight: 400;
}

.hero-proposition {
  font-size: 1.15rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 2.2rem;
  background: linear-gradient(135deg, #D4B679 0%, #A88647 100%);
  color: #0B0B0D;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 20px rgba(201, 169, 106, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #E3D0A5 0%, #BA9755 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(201, 169, 106, 0.35);
  color: #000000;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.95rem 2rem;
  border: 1px solid var(--color-border);
  background-color: rgba(255, 255, 255, 0.02);
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  background-color: rgba(201, 169, 106, 0.05);
  color: var(--color-accent-soft);
  transform: translateY(-2px);
}

/* Hero Bottom Utility Bar (Screenshot 1: Down arrow, Share button, Pagination) */
.hero-bottom-bar {
  position: absolute;
  bottom: 2rem;
  left: 0;
  width: 100%;
  z-index: 10;
}

.hero-bottom-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-bottom-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.scroll-indicator-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.scroll-indicator-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-soft);
  transform: translateY(3px);
}

.share-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.share-action-btn:hover {
  color: var(--color-text);
}

.hero-bottom-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.slider-nav-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.6);
  border-radius: 50%;
  transition: all var(--transition-fast);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.slider-nav-btn:hover {
  color: #FFFFFF;
  border-color: var(--color-accent);
  background-color: rgba(255, 255, 255, 0.05);
}

/* Hero Right Visuals: Stepped Diamond Pedestals */
.hero-visual-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pedestal-stage-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(62, 128, 237, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.pedestal-img {
  width: 100%;
  height: auto;
  aspect-ratio: 16/9;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.pedestal-stage-wrapper:hover .pedestal-img {
  transform: scale(1.02);
}

.pedestal-caption-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 2rem;
  background: linear-gradient(to top, rgba(11, 11, 13, 0.95) 0%, rgba(11, 11, 13, 0) 100%);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.stage-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--color-accent-soft);
  text-transform: uppercase;
}

.stage-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: #FFFFFF;
  margin-top: 2px;
}

/* ==========================================================================
   TRUST & VALUE STRIP (Source Section 10)
   ========================================================================== */
.trust-strip-section {
  position: relative;
  padding: 4rem 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
}

.trust-item {
  display: flex;
  flex-direction: column;
  padding-left: 1.5rem;
  border-left: 1px solid rgba(201, 169, 106, 0.3);
  transition: border-color var(--transition-fast);
}

.trust-item:hover {
  border-left-color: var(--color-accent);
}

.trust-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.16em;
  margin-bottom: 0.5rem;
}

.trust-title {
  font-size: 1.15rem;
  font-family: var(--font-heading);
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.trust-desc {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   WHAT WE MANUFACTURE (Source Section 11)
   ========================================================================== */
.section-padding {
  padding: 7rem 0;
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 4.5rem;
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.8rem;
  display: block;
}

.section-title {
  font-size: clamp(2.2rem, 3.5vw, 3.2rem);
  font-weight: 400;
  color: #FFFFFF;
  margin-bottom: 1.2rem;
}

.section-subtitle {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

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

.manufacture-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2.8rem 2.2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
  overflow: hidden;
}

.manufacture-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.manufacture-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201, 169, 106, 0.4);
  background: var(--color-surface-elevated);
  box-shadow: var(--shadow-elevated);
}

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

.card-icon-container {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: 1.8rem;
  transition: all var(--transition-fast);
}

.manufacture-card:hover .card-icon-container {
  border-color: var(--color-accent);
  background: var(--color-accent-glow);
  color: var(--color-accent-soft);
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #FFFFFF;
}

.card-desc {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  flex-grow: 1;
}

.card-action-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  transition: gap var(--transition-fast);
}

.card-action-link:hover {
  gap: 0.8rem;
  color: var(--color-accent-soft);
}

/* ==========================================================================
   CLARITY SCALE & TECHNICAL EXPERTISE (Source Section 12)
   ========================================================================== */
.clarity-section {
  background: radial-gradient(circle at 50% 50%, #151821 0%, #0B0B0D 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.clarity-card-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  box-shadow: var(--shadow-elevated);
}

.clarity-scale-bar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1rem;
  margin: 3rem 0;
}

.clarity-grade-box {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 1.8rem 1rem;
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
}

.clarity-grade-box.featured-specialty {
  border-color: var(--color-accent);
  background: linear-gradient(180deg, rgba(201, 169, 106, 0.12) 0%, rgba(26, 27, 34, 0.95) 100%);
  box-shadow: 0 0 25px rgba(201, 169, 106, 0.2);
}

.clarity-grade-box.featured-specialty::after {
  content: 'SPECIALTY';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #000000;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

.grade-code {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 0.4rem;
}

.grade-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.clarity-highlight-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  background: rgba(201, 169, 106, 0.05);
  border: 1px solid rgba(201, 169, 106, 0.2);
  border-radius: var(--radius-md);
  margin-top: 2rem;
}

.clarity-highlight-text h4 {
  font-size: 1.15rem;
  color: var(--color-accent-soft);
  margin-bottom: 0.25rem;
}

.clarity-highlight-text p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
}

/* ==========================================================================
   7-STAGE MANUFACTURING PROCESS (Source Section 13, 14, 15)
   ========================================================================== */
.process-section {
  position: relative;
}

.process-timeline-nav {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
  margin-bottom: 3.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1rem;
}

.process-nav-step {
  display: flex;
  flex-direction: column;
  padding: 1rem 0.5rem;
  text-align: left;
  background: transparent;
  border-bottom: 3px solid transparent;
  transition: all var(--transition-fast);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-dim);
  margin-bottom: 0.35rem;
  transition: color var(--transition-fast);
}

.step-name {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.process-nav-step:hover .step-num,
.process-nav-step.active .step-num {
  color: var(--color-accent);
}

.process-nav-step:hover .step-name,
.process-nav-step.active .step-name {
  color: #FFFFFF;
}

.process-nav-step.active {
  border-bottom-color: var(--color-accent);
}

/* Process Active Showcase */
.process-showcase-panel {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3.5rem;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  overflow: hidden;
}

.process-visual {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.process-img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.process-detail-info {
  display: flex;
  flex-direction: column;
}

.stage-counter-pill {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.stage-main-title {
  font-size: 2.2rem;
  color: #FFFFFF;
  margin-bottom: 1.2rem;
}

.stage-main-desc {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

.process-specs-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2.5rem;
}

.process-spec-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.spec-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* ==========================================================================
   INTERACTIVE B2B DIAMOND SPECIFICATION MATRIX & INQUIRY (Matches Screenshot 3)
   ========================================================================== */
.spec-matrix-section {
  background-color: #0E1218;
  background: linear-gradient(180deg, #0B0B0D 0%, #0E1218 50%, #0B0B0D 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.spec-form-container {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2.5rem;
  align-items: flex-start;
}

/* Left Column: User Detail Card (White Clean Card from Screenshot 3) */
.user-detail-card {
  background: #FFFFFF;
  color: #171719;
  border-radius: var(--radius-md);
  padding: 2.2rem 1.8rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.9);
}

.user-detail-header {
  font-family: var(--font-body);
  font-size: 1.35rem;
  font-weight: 700;
  color: #1A2E68;
  margin-bottom: 1.8rem;
}

.field-group {
  margin-bottom: 1.4rem;
}

.field-group:last-child {
  margin-bottom: 0;
}

.spec-input {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1.5px solid #2B3A67;
  border-radius: var(--radius-sm);
  background-color: #FFFFFF;
  color: #1A2E68;
  font-size: 0.92rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.spec-input::placeholder {
  color: #2B3A67;
  font-weight: 500;
  opacity: 0.85;
}

.spec-input:focus {
  outline: none;
  border-color: #1A2E68;
  box-shadow: 0 0 0 3px rgba(26, 46, 104, 0.15);
}

.user-detail-note {
  font-size: 0.75rem;
  color: #6C7A9C;
  line-height: 1.5;
  margin-top: 1.5rem;
  border-top: 1px solid #E2E8F0;
  padding-top: 1rem;
}

/* Right Panel: Diamond Shapes & Specification Matrix (Screenshot 3) */
.spec-matrix-card {
  background: #FFFFFF;
  color: #171719;
  border-radius: var(--radius-md);
  padding: 2.2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

/* Shapes Grid Top (Screenshot 3) */
.shapes-selector-grid {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.shapes-selector-row2 {
  display: grid;
  grid-template-columns: repeat(4, 110px);
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.shape-option-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 0.4rem;
  border: 1px solid #CFD8E5;
  border-radius: var(--radius-sm);
  background-color: #FFFFFF;
  color: #2B3A67;
  transition: all var(--transition-fast);
  text-align: center;
  min-height: 76px;
}

.shape-option-btn svg {
  width: 28px;
  height: 28px;
  stroke: #2B3A67;
  fill: none;
  stroke-width: 1.5;
  margin-bottom: 0.35rem;
  transition: all var(--transition-fast);
}

.shape-option-btn span {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.shape-option-btn:hover {
  border-color: #1A2E68;
  background-color: #F8FAFC;
}

.shape-option-btn.selected {
  border-color: #1A2E68;
  background-color: #1A2E68;
  color: #FFFFFF;
}

.shape-option-btn.selected svg {
  stroke: #FFFFFF;
}

/* Matrix Row Layouts (Screenshot 3) */
.matrix-row {
  display: flex;
  align-items: center;
  padding: 0.6rem 0;
  border-bottom: 1px solid #EEF2F6;
  gap: 1.5rem;
}

.matrix-row:last-child {
  border-bottom: none;
}

.matrix-label {
  width: 130px;
  flex-shrink: 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: #1A2E68;
}

.matrix-label span.req {
  color: #E53E3E;
  margin-left: 2px;
}

.matrix-controls {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  flex: 1;
}

/* Pill Option Buttons (Screenshot 3) */
.matrix-pill-btn {
  padding: 0.35rem 0.75rem;
  border: 1px solid #CFD8E5;
  border-radius: var(--radius-xs);
  background: #FFFFFF;
  color: #334155;
  font-size: 0.76rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  line-height: 1.2;
}

.matrix-pill-btn:hover {
  border-color: #1A2E68;
  color: #1A2E68;
}

.matrix-pill-btn.active {
  background-color: #1A2E68;
  border-color: #1A2E68;
  color: #FFFFFF;
}

/* Pieces Input */
.input-pieces {
  width: 100px;
  padding: 0.35rem 0.6rem;
  border: 1px solid #CFD8E5;
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  color: #1A2E68;
}

/* Carat Range Inputs */
.carat-range-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.carat-input {
  width: 75px;
  padding: 0.35rem 0.6rem;
  border: 1px solid #CFD8E5;
  border-radius: var(--radius-xs);
  font-size: 0.82rem;
  color: #1A2E68;
}

.btn-add-range {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  background: #EEF2F6;
  color: #1A2E68;
  font-weight: 700;
  font-size: 1.1rem;
}

/* Remark Textarea */
.matrix-textarea {
  width: 100%;
  min-height: 80px;
  padding: 0.6rem 0.8rem;
  border: 1px solid #CFD8E5;
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  color: #1A2E68;
  resize: vertical;
}

.matrix-textarea:focus {
  outline: none;
  border-color: #1A2E68;
}

/* Action Buttons (Submit & Reset matching Screenshot 3) */
.matrix-actions-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.8rem;
  padding-top: 1.2rem;
}

.btn-matrix-submit {
  padding: 0.65rem 2.5rem;
  background-color: #0E1726;
  color: #FFFFFF;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.btn-matrix-submit:hover {
  background-color: #1A2E68;
}

.btn-matrix-reset {
  padding: 0.65rem 2rem;
  border: 1px solid #CFD8E5;
  background-color: #FFFFFF;
  color: #2B3A67;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.btn-matrix-reset:hover {
  border-color: #2B3A67;
  background-color: #F8FAFC;
}

/* ==========================================================================
   QUALITY PAGE & WORKFLOW DIAGRAM (Source Section 17)
   ========================================================================== */
.quality-pipeline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  margin: 3.5rem 0;
  padding: 2.5rem 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.quality-pipeline::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 5%;
  right: 5%;
  height: 2px;
  background: linear-gradient(90deg, #3D3F4D, var(--color-accent), #3D3F4D);
  transform: translateY(-50%);
  z-index: 1;
}

.pipeline-node {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--color-surface);
  padding: 0.5rem 1rem;
}

.node-icon-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-surface-elevated);
  border: 2px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-soft);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.85rem;
  box-shadow: 0 0 15px rgba(201, 169, 106, 0.2);
}

.node-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text);
  text-align: center;
}

/* ==========================================================================
   FOOTER (Matches Screenshot 1, 2 & Source Section 22)
   ========================================================================== */
.site-footer {
  background-color: #070709;
  border-top: 1px solid var(--color-border);
  padding: 5.5rem 0 2.5rem;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3.5rem;
  margin-bottom: 4.5rem;
}

.footer-brand h2 {
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #FFFFFF;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 360px;
  margin-bottom: 1.5rem;
}

.footer-prop-quote {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 1rem;
  color: var(--color-accent-soft);
  border-left: 2px solid var(--color-accent);
  padding-left: 1rem;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #FFFFFF;
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-link {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent-soft);
}

.footer-facility-info p {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
}

.footer-bottom-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--color-text-dim);
}

.footer-bottom-bar a:hover {
  color: var(--color-accent-soft);
}

/* ==========================================================================
   MODALS (Sign-in & Feedback)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(11, 11, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  padding: 1.5rem;
}

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

.modal-window {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 3rem 2.5rem;
  width: 100%;
  max-width: 480px;
  position: relative;
  box-shadow: var(--shadow-elevated);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-backdrop.is-open .modal-window {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  color: var(--color-text-muted);
  font-size: 1.5rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.05);
}

/* ==========================================================================
   RESPONSIVE BREAKPOINTS (Source Section 30: 375px, 768px, 1024px, 1440px)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .drawer-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .drawer-office-info {
    padding-left: 0;
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 2.5rem;
  }

  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .manufacture-grid {
    grid-template-columns: 1fr;
  }

  .process-timeline-nav {
    grid-template-columns: repeat(4, 1fr);
  }

  .process-showcase-panel {
    grid-template-columns: 1fr;
  }

  .spec-form-container {
    grid-template-columns: 1fr;
  }

  .shapes-selector-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 72px;
  }

  .desktop-nav-links {
    display: none;
  }

  .btn-pill-inquiry {
    display: none;
  }

  .hero-title {
    font-size: 2.4rem;
  }

  .trust-grid {
    grid-template-columns: 1fr;
  }

  .clarity-scale-bar {
    grid-template-columns: repeat(3, 1fr);
  }

  .process-timeline-nav {
    grid-template-columns: repeat(2, 1fr);
  }

  .shapes-selector-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .shapes-selector-row2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .matrix-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .matrix-label {
    width: 100%;
  }

  .quality-pipeline {
    flex-direction: column;
    gap: 2rem;
  }

  .quality-pipeline::before {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom-bar {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* ==========================================================================
   MODALS (Sign-in & Notice)
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(8, 9, 12, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.3s;
  padding: 1.5rem;
}

.modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.modal-window {
  background: #14161D;
  border: 1px solid rgba(201, 169, 106, 0.35);
  border-radius: var(--radius-md);
  padding: 3rem 2.5rem;
  width: 100%;
  max-width: 480px;
  position: relative;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.85), 0 0 40px rgba(201, 169, 106, 0.15);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  color: #F5F3EF;
}

.modal-backdrop.is-open .modal-window {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  color: #8E8C86;
  font-size: 1.8rem;
  line-height: 1;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xs);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.08);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}