/* ==========================================================================
   Ravi Traders - Bulk Highway & Infrastructure Material Supplier
   Modern Industrial Design System
   ========================================================================== */

:root {
  /* Core Color Tokens */
  --color-brand-primary: #f59e0b; /* Safety Highway Amber */
  --color-brand-primary-hover: #d97706;
  --color-brand-primary-light: #fef3c7;
  --color-brand-accent: #ea580c; /* High-vis safety orange */
  --color-brand-contrast: #b45309; /* Accessible high-contrast amber (> 4.5:1 on light) */
  
  --color-bg-dark: #090e17; /* Deep asphalt black */
  --color-bg-card-dark: #111827;
  --color-bg-surface: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-subtle: #f1f5f9;
  
  --color-text-main: #0f172a;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  --color-text-inverse: #f8fafc;
  
  --color-border: #e2e8f0;
  --color-border-dark: #1e293b;
  --color-border-focus: #f59e0b;
  
  --color-success: #10b981;
  --color-success-light: #d1fae5;
  --color-info: #0284c7;
  --color-info-light: #e0f2fe;

  --color-whatsapp: #16a34a;
  --color-whatsapp-hover: #15803d;

  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* Elevation & Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
  --shadow-amber: 0 10px 25px -5px rgba(245, 158, 11, 0.35);

  /* Layout */
  --container-max: 1280px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.4s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--color-text-main);
  background-color: var(--color-bg-surface);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

button, input, select, textarea {
  font: inherit;
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-main);
}

.text-amber {
  color: var(--color-brand-primary);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.badge-amber {
  background: var(--color-brand-primary-light);
  color: #92400e;
  border: 1px solid #fde68a;
}

.badge-green {
  background: var(--color-success-light);
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.badge-dark {
  background: rgba(255, 255, 255, 0.1);
  color: #e2e8f0;
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
}

/* UI/UX Pro Max - High Contrast & Numeric Utilities */
.tabular-nums {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

:focus-visible {
  outline: 2px solid var(--color-brand-primary);
  outline-offset: 2px;
}

/* UI/UX Pro Max - SVG Vector Icon Standards (Replaces Raw Emojis) */
.ui-icon {
  display: inline-block;
  width: 1.15em;
  height: 1.15em;
  stroke-width: 2;
  stroke: currentColor;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  vertical-align: -0.16em;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.ui-icon-fill {
  fill: currentColor;
  stroke: none;
}

.ui-icon-sm {
  width: 0.95em;
  height: 0.95em;
  vertical-align: -0.12em;
}

.ui-icon-lg {
  width: 1.35em;
  height: 1.35em;
}

/* Live Operational Radar Indicator */
.live-radar-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: rgba(34, 197, 94, 0.12);
  color: #15803d;
  border: 1px solid rgba(34, 197, 94, 0.35);
}

.live-radar-badge-dark {
  background: rgba(34, 197, 94, 0.18);
  color: #86efac;
  border-color: rgba(34, 197, 94, 0.4);
}

.live-radar-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #22c55e;
  position: relative;
  display: inline-block;
}

.live-radar-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid #22c55e;
  animation: radarPing 1.8s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes radarPing {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(2.4); opacity: 0; }
}

/* ==========================================================================
   Top Notification / Trust Bar
   ========================================================================== */
.top-bar {
  background: var(--color-bg-dark);
  color: #cbd5e1;
  font-size: 0.8125rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border-dark);
}

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

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

.top-tag {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
}

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

.top-bar-contacts {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.top-bar-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #f1f5f9;
  transition: color var(--transition-fast);
}

.top-bar-link:hover {
  color: var(--color-brand-primary);
}

/* ==========================================================================
   Main Header & Navigation
   ========================================================================== */
.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

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

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.4rem;
  font-weight: 900;
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
}

.brand-tagline {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.5rem;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--color-text-main);
  position: relative;
  padding: 0.4rem 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-brand-primary-hover);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--color-brand-primary);
  transition: width var(--transition-fast);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Button Component */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #d97706, #b45309);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
}

.btn-dark {
  background: var(--color-bg-dark);
  color: #ffffff;
}

.btn-dark:hover {
  background: #1e293b;
  transform: translateY(-1px);
}

.btn-whatsapp {
  background: #25d366;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: #1ebd5b;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(37, 211, 102, 0.4);
}

.btn-outline {
  border-color: var(--color-border);
  color: var(--color-text-main);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-bg-subtle);
  border-color: #cbd5e1;
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #ffffff;
}

.btn-lg {
  padding: 0.85rem 1.75rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.8rem;
}

/* Mobile Menu Toggle */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-main);
  cursor: pointer;
  padding: 0.5rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  padding: 4.5rem 0 5.5rem;
  overflow: hidden;
}

.hero-bg-media {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
  filter: contrast(1.1) brightness(0.9);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(9, 14, 23, 0.85) 0%, rgba(9, 14, 23, 0.95) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-text-block {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-badges {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  color: #ffffff;
  letter-spacing: -0.03em;
}

.hero-title span {
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  line-height: 1.6;
  color: #cbd5e1;
  max-width: 620px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-features-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
}

.hero-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.hero-feature-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: rgba(245, 158, 11, 0.15);
  color: var(--color-brand-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.hero-feature-text h4 {
  font-size: 0.95rem;
  color: #ffffff;
  font-weight: 700;
}

.hero-feature-text p {
  font-size: 0.8rem;
  color: #94a3b8;
}

/* Hero Fast RFQ Card */
.hero-card {
  background: rgba(17, 24, 39, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xl);
  padding: 2rem;
  backdrop-filter: blur(16px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.hero-card-header {
  margin-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 1rem;
}

.hero-card-header h3 {
  font-size: 1.35rem;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-card-header p {
  font-size: 0.85rem;
  color: #94a3b8;
  margin-top: 0.25rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 0.35rem;
}

.form-control {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-brand-primary);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

.form-control option {
  background: #111827;
  color: #ffffff;
}

/* ==========================================================================
   Metrics & Stats Ribbon
   ========================================================================== */
.stats-ribbon {
  background: #0f172a;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 2.25rem 0;
  position: relative;
  z-index: 3;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

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

.stat-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand-primary);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.stat-number {
  font-size: 1.75rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
  font-family: var(--font-heading);
}

.stat-label {
  font-size: 0.8rem;
  color: #94a3b8;
  font-weight: 500;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section {
  padding: 5rem 0;
}

.section-alt {
  background-color: var(--color-bg-alt);
}

.section-dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-subtitle {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-brand-primary);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-dark .section-title {
  color: #ffffff;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

.section-dark .section-desc {
  color: #94a3b8;
}

/* ==========================================================================
   Materials Catalog & Filter Tabs
   ========================================================================== */
.catalog-tabs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.tab-btn {
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  background: #ffffff;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  border-color: #cbd5e1;
  color: var(--color-text-main);
}

.tab-btn.active {
  background: var(--color-bg-dark);
  color: #ffffff;
  border-color: var(--color-bg-dark);
}

.materials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.75rem;
}

.material-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.material-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: #cbd5e1;
}

.material-card-media {
  position: relative;
  height: 190px;
  overflow: hidden;
  background: #0f172a;
}

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

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

.material-spec-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
}

.material-price-badge {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  background: rgba(15, 23, 42, 0.9);
  color: #fbbf24;
  font-weight: 800;
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(251, 191, 36, 0.3);
  backdrop-filter: blur(6px);
}

.material-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.material-category {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-brand-primary-hover);
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.material-name {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text-main);
}

.material-description {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.material-specs-list {
  list-style: none;
  font-size: 0.825rem;
  margin-bottom: 1.5rem;
  border-top: 1px dashed var(--color-border);
  padding-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.material-specs-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--color-text-main);
}

.material-specs-list .spec-label {
  color: var(--color-text-muted);
}

.material-card-footer {
  margin-top: auto;
  display: flex;
  gap: 0.75rem;
}

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

/* ==========================================================================
   Project Applications & Infrastructure Sectors
   ========================================================================== */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
}

.app-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.app-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: #cbd5e1;
}

.app-card-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-lg);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 1.25rem;
}

.app-card-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--color-text-main);
}

.app-card-body p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.app-tags {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-top: 1px dashed var(--color-border);
  padding-top: 1rem;
  font-size: 0.825rem;
  font-weight: 600;
  color: #334155;
}

.app-tags li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.app-tags li::before {
  content: '▸';
  color: var(--color-brand-primary);
  font-size: 1rem;
}

/* ==========================================================================
   Interactive Highway Material & Tonnage Estimator
   ========================================================================== */
.calc-wrapper {
  background: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
}

.calc-inputs-side {
  padding: 2.5rem;
}

.calc-inputs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.calc-results-side {
  background: var(--color-bg-dark);
  color: #ffffff;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-left: 1px solid var(--color-border-dark);
}

.results-header h3 {
  font-size: 1.25rem;
  color: #ffffff;
  margin-bottom: 0.25rem;
}

.results-header p {
  font-size: 0.825rem;
  color: #94a3b8;
}

.results-display {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.result-metric {
  margin-bottom: 1.25rem;
}

.result-metric:last-child {
  margin-bottom: 0;
}

.result-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: #94a3b8;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.result-val {
  font-size: 2.25rem;
  font-weight: 800;
  font-family: var(--font-heading);
  color: #fbbf24;
  line-height: 1.1;
}

.result-sub {
  font-size: 0.8rem;
  color: #cbd5e1;
}

.truckloads-calc {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.85rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
}

.truckloads-calc .icon {
  font-size: 1.75rem;
  color: #f59e0b;
}

/* Calculator Presets Bar */
.calc-presets-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}

.calc-presets-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  margin-right: 0.25rem;
}

.calc-preset-chip {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.35rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: #334155;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.calc-preset-chip:hover {
  background: var(--color-brand-primary-light);
  border-color: var(--color-brand-primary);
  color: #92400e;
  transform: translateY(-1px);
}

.calc-preset-chip.active {
  background: #0f172a;
  border-color: #0f172a;
  color: #ffffff;
}

.calc-actions-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem;
  align-items: center;
}

.btn-copy-calc {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.btn-copy-calc:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #ffffff;
}

@keyframes metricFlash {
  0% { transform: scale(1); }
  50% { transform: scale(1.06); color: #f59e0b; }
  100% { transform: scale(1); }
}

.metric-flash {
  animation: metricFlash 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Toast Notification System */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast-notification {
  background: #0f172a;
  color: #ffffff;
  border: 1px solid rgba(245, 158, 11, 0.4);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
}

.toast-notification.show {
  transform: translateY(0);
  opacity: 1;
}

/* ==========================================================================
   Compliance & Official Certificate Vault
   ========================================================================== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.cert-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.cert-card:hover {
  transform: translateY(-4px);
  border-color: #cbd5e1;
  box-shadow: var(--shadow-lg);
}

.cert-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.cert-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.cert-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.cert-number {
  font-family: monospace;
  font-size: 0.85rem;
  background: #f8fafc;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid #e2e8f0;
  color: #334155;
  margin-bottom: 0.75rem;
  display: inline-block;
  font-weight: 700;
}

.cert-details {
  font-size: 0.825rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

/* ==========================================================================
   Fleet & Operational Infrastructure
   ========================================================================== */
.fleet-showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.fleet-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.fleet-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.fleet-media {
  height: 220px;
  position: relative;
  overflow: hidden;
}

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

.fleet-body {
  padding: 1.75rem;
}

.fleet-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.fleet-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.fleet-highlights {
  list-style: none;
  font-size: 0.825rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
}

.fleet-highlights li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.fleet-highlights li::before {
  content: '✓';
  color: var(--color-success);
  font-weight: 800;
}

/* ==========================================================================
   Regional Coverage & Hubs (Location We Serve)
   ========================================================================== */
.regions-section {
  padding: 5rem 0;
  background: var(--color-bg-surface);
}

/* High Visibility Location Banner Bar */
.location-banner-bar {
  background: linear-gradient(135deg, #e0f2fe 0%, #dbeafe 100%);
  border: 1.5px solid #93c5fd;
  color: #1e3a8a;
  text-align: center;
  padding: 2rem 1.5rem;
  border-radius: var(--radius-xl);
  margin-bottom: 2.5rem;
  box-shadow: 0 10px 25px -5px rgba(2, 132, 199, 0.12);
  position: relative;
  overflow: hidden;
}

.location-banner-bar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, #f59e0b, #0284c7, #f59e0b);
}

.location-banner-title {
  font-size: 2.4rem;
  font-weight: 900;
  font-family: var(--font-heading);
  color: #0f172a;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.location-banner-sub {
  font-size: 1rem;
  font-weight: 600;
  color: #0369a1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Region Zone Switcher Tabs */
.region-zone-tabs {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.region-tab-btn {
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  background: #ffffff;
  color: var(--color-text-muted);
  border: 1.5px solid var(--color-border);
  transition: all var(--transition-fast);
}

.region-tab-btn:hover {
  border-color: #f59e0b;
  color: var(--color-text-main);
}

.region-tab-btn.active {
  background: var(--color-bg-dark);
  color: #ffffff;
  border-color: var(--color-bg-dark);
  box-shadow: var(--shadow-md);
}

/* Locations Content Wrapper */
.locations-container {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.location-city-block {
  text-align: center;
  padding: 2.25rem 1.5rem;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.location-city-block:hover {
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.city-title {
  font-size: 1.85rem;
  font-weight: 800;
  font-family: var(--font-heading);
  color: #0f172a;
  margin-bottom: 1.5rem;
  display: inline-block;
  position: relative;
}

.city-title::after {
  content: '';
  display: block;
  width: 44px;
  height: 3px;
  background: #f59e0b;
  margin: 0.4rem auto 0;
  border-radius: var(--radius-full);
}

.city-pills-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  max-width: 960px;
  margin: 0 auto;
}

/* The exact Pill Design from the Screenshot */
.location-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.35rem;
  background: #ffffff;
  color: #1e293b;
  border: 1.5px solid #f59e0b;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.location-pill:hover {
  background: #fffbeb;
  border-color: #d97706;
  color: #b45309;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
}

.location-pill:active {
  transform: translateY(0);
}

/* Original Quick Districts Grid */
.coverage-box {
  background: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  margin-top: 2.5rem;
}

.districts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-top: 1.75rem;
}

.district-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  transition: all var(--transition-fast);
}

.district-card:hover {
  background: #ffffff;
  border-color: var(--color-brand-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.district-card h4 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.district-card p {
  font-size: 0.775rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Full RFQ & Contact Section
   ========================================================================== */
.rfq-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3.5rem;
  align-items: start;
}

.rfq-info-col h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #ffffff;
}

.rfq-info-col p {
  color: #94a3b8;
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.contact-card-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-tile {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.25rem;
  border-radius: var(--radius-lg);
}

.contact-tile-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(245, 158, 11, 0.2);
  color: var(--color-brand-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-tile-text h4 {
  font-size: 0.95rem;
  color: #ffffff;
}

.contact-tile-text p, .contact-tile-text a {
  font-size: 0.85rem;
  color: #cbd5e1;
}

.rfq-form-card {
  background: #ffffff;
  color: var(--color-text-main);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
}

.rfq-form-card .form-control {
  background: #ffffff;
  color: var(--color-text-main);
  border-color: #cbd5e1;
}

.rfq-form-card .form-control:focus {
  background: #ffffff;
  border-color: var(--color-brand-primary);
}

.rfq-form-card .form-label {
  color: #334155;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.main-footer {
  background: #06090e;
  color: #94a3b8;
  padding: 4.5rem 0 2rem;
  border-top: 1px solid #1e293b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.6;
  margin: 1rem 0 1.5rem;
}

.footer-col h4 {
  font-size: 1.05rem;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  font-size: 0.875rem;
}

.footer-links a:hover {
  color: var(--color-brand-primary);
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8125rem;
}

/* ==========================================================================
   Sticky Mobile Bottom Action Bar
   ========================================================================== */
.mobile-action-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(15, 23, 42, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.6rem 1rem;
  z-index: 999;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.3);
}

.mobile-actions-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1fr;
  gap: 0.5rem;
}

/* ==========================================================================
   Certificate Modal
   ========================================================================== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(6px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-overlay.active {
  display: flex;
}

.modal-container {
  background: #ffffff;
  border-radius: var(--radius-xl);
  max-width: 780px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
}

.modal-header {
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.25rem;
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-muted);
}

.modal-body {
  padding: 1.75rem;
  text-align: center;
}

.modal-cert-image {
  max-width: 100%;
  max-height: 60vh;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .hero-title {
    font-size: 2.4rem;
  }

  .calc-wrapper {
    grid-template-columns: 1fr;
  }

  .calc-results-side {
    border-left: none;
    border-top: 1px solid var(--color-border-dark);
  }

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

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

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

@media (max-width: 768px) {
  .top-bar-tags {
    display: none;
  }
  
  .top-bar-content {
    justify-content: center;
  }

  .main-nav {
    position: fixed;
    top: 65px;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem;
    flex-direction: column;
    align-items: flex-start;
    box-shadow: var(--shadow-lg);
    display: none;
  }

  .main-nav.active {
    display: flex;
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 1rem;
  }

  .header-actions .btn {
    display: none;
  }

  .mobile-nav-toggle {
    display: block;
  }

  .hero-title {
    font-size: 1.85rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

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

  .calc-inputs-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  body {
    padding-bottom: 70px; /* Space for mobile sticky action bar */
  }

  .mobile-action-bar {
    display: block;
  }
}

/* ==========================================================================
   Cashfree B2B Payment & Order Booking Modal
   ========================================================================== */
.btn-outline-amber {
  border: 1.5px solid var(--color-brand-primary);
  color: var(--color-brand-contrast);
  background: rgba(245, 158, 11, 0.08);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-normal);
}

.btn-outline-amber:hover {
  background: var(--color-brand-primary);
  color: #ffffff;
  border-color: var(--color-brand-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-cashfree {
  background: linear-gradient(135deg, #090e17 0%, #1e293b 100%);
  color: #ffffff;
  border: 1px solid rgba(245, 158, 11, 0.4);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

.btn-cashfree:hover {
  background: linear-gradient(135deg, #111827 0%, #334155 100%);
  border-color: var(--color-brand-primary);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(245, 158, 11, 0.25);
}

.btn-payment-token {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #ffffff;
  padding: 0.85rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-payment-token:hover {
  background: linear-gradient(135deg, #d97706, #b45309);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
}

/* Modal Specifics */
.modal-payment-container {
  max-width: 680px;
  width: 95%;
  background: #ffffff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  border: 1px solid var(--color-border);
  animation: modalFadeIn 0.25s ease-out;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.96) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-payment-header {
  background: var(--color-bg-dark);
  color: #ffffff;
  padding: 1.25rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--color-brand-primary);
}

.modal-payment-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.modal-payment-title h3 {
  font-size: 1.15rem;
  color: #ffffff;
  margin: 0;
  line-height: 1.2;
}

.modal-payment-title p {
  font-size: 0.75rem;
  color: #94a3b8;
  margin: 0.15rem 0 0 0;
}

.cashfree-secure-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #fbbf24;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.modal-payment-body {
  padding: 1.5rem 1.75rem;
  overflow-y: auto;
  text-align: left;
}

/* Tabs */
.payment-tabs {
  display: flex;
  gap: 0.5rem;
  background: var(--color-bg-subtle);
  padding: 0.35rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
}

.payment-tab-btn {
  flex: 1;
  padding: 0.6rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 700;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.payment-tab-btn.active {
  background: #ffffff;
  color: var(--color-text-main);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.payment-tab-btn:hover:not(.active) {
  color: var(--color-text-main);
}

/* Preset Chips */
.token-presets-title {
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.6rem;
}

.token-presets-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.token-preset-card {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.5rem;
  text-align: center;
  cursor: pointer;
  background: #ffffff;
  transition: all var(--transition-fast);
}

.token-preset-card:hover {
  border-color: var(--color-brand-primary);
  background: rgba(245, 158, 11, 0.03);
}

.token-preset-card.active {
  border-color: var(--color-brand-primary);
  background: rgba(245, 158, 11, 0.08);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
}

.token-preset-amount {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--color-text-main);
  line-height: 1.2;
}

.token-preset-label {
  font-size: 0.68rem;
  color: var(--color-text-muted);
  margin-top: 0.2rem;
  line-height: 1.2;
}

/* Payment Form Fields */
.payment-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.payment-form-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.payment-form-field.full-width {
  grid-column: 1 / -1;
}

.payment-form-field label {
  font-size: 0.775rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.payment-form-field input,
.payment-form-field select {
  width: 100%;
  padding: 0.6rem 0.75rem;
  font-size: 0.875rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #ffffff;
  color: var(--color-text-main);
  transition: border-color var(--transition-fast);
}

.payment-form-field input:focus,
.payment-form-field select:focus {
  outline: none;
  border-color: var(--color-brand-primary);
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
}

.payment-submit-btn {
  width: 100%;
  padding: 0.85rem;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #ffffff;
  font-size: 1rem;
  font-weight: 800;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
  margin-top: 0.75rem;
}

.payment-submit-btn:hover {
  background: linear-gradient(135deg, #d97706, #b45309);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(245, 158, 11, 0.45);
}

.payment-trust-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.725rem;
  color: var(--color-text-muted);
}

.payment-trust-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* RTGS / Bank Transfer Details */
.rtgs-card {
  background: var(--color-bg-card-dark);
  color: #ffffff;
  border-radius: var(--radius-md);
  padding: 1.25rem;
  border: 1px solid var(--color-border-dark);
  margin-bottom: 1rem;
}

.rtgs-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.rtgs-card-header h4 {
  font-size: 0.95rem;
  color: #ffffff;
  margin: 0;
}

.rtgs-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.45rem 0;
  font-size: 0.825rem;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
}

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

.rtgs-label {
  color: #94a3b8;
}

.rtgs-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: #f8fafc;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-mini-copy {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #cbd5e1;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.7rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: all var(--transition-fast);
}

.btn-mini-copy:hover {
  background: var(--color-brand-primary);
  color: #0f172a;
}

/* Cashfree Dev / Config Drawer */
.cashfree-config-details {
  margin-top: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.85rem;
  background: var(--color-bg-subtle);
  font-size: 0.75rem;
}

.cashfree-config-details summary {
  font-weight: 700;
  color: var(--color-text-main);
  cursor: pointer;
  user-select: none;
}

.cashfree-config-content {
  margin-top: 0.65rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cashfree-config-content input {
  padding: 0.4rem 0.6rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #ffffff;
}

@media (max-width: 640px) {
  .token-presets-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .payment-form-grid {
    grid-template-columns: 1fr;
  }
}


/* UI/UX Pro Max - Motion Accessibility */
@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;
  }
  .live-radar-dot::after {
    display: none !important;
  }
}

/* ==========================================================================
   3D Web Experience — Highway Pavement Explorer & Ambient Particle Engine
   ========================================================================== */
.hero-3d-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.7;
}

.pavement-3d-section {
  background: radial-gradient(circle at 50% 20%, #1e293b 0%, #090e17 80%);
  color: #ffffff;
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(245, 158, 11, 0.2);
  border-bottom: 1px solid rgba(245, 158, 11, 0.2);
}

.pavement-3d-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 2rem;
  align-items: stretch;
  margin-top: 2.5rem;
}

.pavement-viewport-card {
  position: relative;
  background: #080d1a;
  border: 1.5px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.5), inset 0 0 40px rgba(245, 158, 11, 0.04);
  display: flex;
  flex-direction: column;
  min-height: 520px;
}

.pavement-canvas-wrap {
  position: relative;
  flex: 1;
  width: 100%;
  min-height: 460px;
  background: radial-gradient(circle at center, #111c33 0%, #090e1a 100%);
}

#pavementCanvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: pan-y;
}

#pavementCanvas:active {
  cursor: grabbing;
}

/* 3D Floating Toolbar Controls */
.pavement-controls-bar {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  z-index: 10;
  pointer-events: none;
}

.pavement-controls-group {
  display: flex;
  gap: 0.4rem;
  pointer-events: auto;
}

.pavement-ctrl-btn {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #cbd5e1;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pavement-ctrl-btn:hover {
  background: rgba(245, 158, 11, 0.2);
  border-color: var(--color-brand-primary);
  color: #ffffff;
}

.pavement-ctrl-btn.active {
  background: var(--color-brand-primary);
  color: #0f172a;
  border-color: var(--color-brand-primary);
  font-weight: 700;
}

.pavement-hint-bar {
  background: rgba(9, 14, 23, 0.9);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.65rem 1rem;
  font-size: 0.75rem;
  color: #94a3b8;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 5;
}

/* Engineering HUD Specification Card */
.pavement-hud-card {
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.pavement-layers-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.pavement-layer-pill {
  background: rgba(30, 41, 59, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #94a3b8;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pavement-layer-pill:hover {
  border-color: var(--color-brand-primary);
  color: #ffffff;
}

.pavement-layer-pill.active {
  background: rgba(245, 158, 11, 0.18);
  border-color: var(--color-brand-primary);
  color: #fbbf24;
  font-weight: 700;
}

.pavement-hud-body {
  flex: 1;
}

.pavement-hud-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.35rem;
  line-height: 1.3;
}

.pavement-hud-subtitle {
  font-size: 0.825rem;
  color: #f59e0b;
  font-family: var(--font-mono);
  margin-bottom: 1.25rem;
}

.pavement-metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.pavement-metric-box {
  background: rgba(11, 19, 34, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
}

.pavement-metric-box .label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: #94a3b8;
  margin-bottom: 0.25rem;
  display: block;
  letter-spacing: 0.05em;
}

.pavement-metric-box .value {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  font-family: var(--font-mono);
}

.pavement-details-block {
  margin-bottom: 1rem;
}

.pavement-details-block h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #94a3b8;
  margin-bottom: 0.35rem;
}

.pavement-details-block p {
  font-size: 0.85rem;
  color: #e2e8f0;
  line-height: 1.6;
}

.pavement-hud-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* WebGL Fallback */
.pavement-3d-fallback {
  display: none;
  padding: 2.5rem;
  text-align: center;
  background: #0f172a;
  border-radius: var(--radius-md);
}

.pavement-3d-fallback svg {
  max-width: 100%;
  height: auto;
  margin-top: 1rem;
}

@media (max-width: 992px) {
  .pavement-3d-grid {
    grid-template-columns: 1fr;
  }
  .pavement-viewport-card {
    min-height: 400px;
  }
  .pavement-canvas-wrap {
    min-height: 380px;
  }
}