/* ==========================================================================
   SR SCRAP - PALAKKAD, KERALA
   Modern, Lightweight, Mobile-First Stylesheet
   Palette: Industrial High-Contrast Black & Yellow
   ========================================================================== */

/* 1. CSS Custom Properties / Design Tokens */
:root {
  --color-bg-base: #08090a;
  --color-bg-surface: #111316;
  --color-bg-elevated: #191c22;
  --color-bg-card: #15171d;
  
  /* Brand Yellow Palette */
  --color-yellow: #ffd000;
  --color-yellow-hover: #ffda33;
  --color-yellow-dark: #cca600;
  --color-yellow-tint: rgba(255, 208, 0, 0.08);
  --color-yellow-glow: rgba(255, 208, 0, 0.25);
  --color-yellow-border: rgba(255, 208, 0, 0.35);

  /* WhatsApp Brand Green for Accent Badges */
  --color-wa: #25d366;
  --color-wa-hover: #20bd5a;
  --color-wa-dark: #128c7e;

  /* Typography Colors */
  --color-text-main: #f1f5f9;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;
  --color-text-on-yellow: #0a0a0c; /* WCAG AAA 12.5:1 ratio */

  /* Borders & Gradients */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-yellow-glow: 0 0 20px rgba(255, 208, 0, 0.2);
  --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.85);

  /* Fonts */
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'Space Grotesk', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Spacing & Radii */
  --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 cubic-bezier(0.16, 1, 0.3, 1);
}

/* 2. Reset & Base Setup */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--color-bg-base);
  color: var(--color-text-main);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  line-height: 1.6;
  background-color: var(--color-bg-base);
  color: var(--color-text-main);
  overflow-x: hidden;
  min-height: 100vh;
  padding-bottom: 70px; /* Space for mobile sticky WhatsApp bar */
}

@media (min-width: 768px) {
  body {
    padding-bottom: 0;
  }
}

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

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

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

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

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--color-yellow);
  color: var(--color-text-on-yellow);
  padding: 0.75rem 1.25rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.section {
  padding-top: 4.5rem;
  padding-bottom: 4.5rem;
  position: relative;
}

/* 3. Top Announcement Bar */
.top-announcement {
  background-color: #000000;
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.5rem 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.announcement-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.location-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-text-main);
}

.location-pill svg {
  color: var(--color-yellow);
}

.service-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 208, 0, 0.1);
  color: var(--color-yellow);
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
}

.status-indicator {
  width: 8px;
  height: 8px;
  background-color: #22c55e;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 6px #22c55e;
}

.top-contacts-desktop {
  display: none;
  align-items: center;
  gap: 0.75rem;
}

@media (min-width: 860px) {
  .top-contacts-desktop {
    display: inline-flex;
  }
}

.announcement-link {
  background: none;
  border: none;
  padding: 0;
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  color: var(--color-yellow);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: color var(--transition-fast);
}

.announcement-link:hover {
  color: var(--color-yellow-hover);
  text-decoration: underline;
}

.wa-icon-mini {
  background: var(--color-wa);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 1px 4px;
  border-radius: 4px;
}

.divider {
  color: var(--color-text-dim);
}

/* 4. Site Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8, 9, 10, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
}

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

.logo-mark {
  width: 42px;
  height: 42px;
  background: var(--color-yellow);
  color: var(--color-text-on-yellow);
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 12px var(--color-yellow-glow);
  position: relative;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: #ffffff;
  line-height: 1.1;
}

.brand-tagline {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-yellow);
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.5rem 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: inherit;
  font-family: inherit;
}

.nav-link:hover, .nav-link:focus {
  color: var(--color-yellow);
}

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

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

@media (min-width: 768px) {
  .btn-header-cta {
    display: inline-flex;
  }
}

.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 40px;
  height: 40px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
}

@media (min-width: 992px) {
  .nav-links {
    display: flex;
  }
  .mobile-toggle {
    display: none;
  }
}

.mobile-toggle .bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-text-main);
  transition: all var(--transition-fast);
}

.mobile-toggle.active .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-toggle.active .bar:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Drawer */
@media (max-width: 991px) {
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 4.25rem;
    left: 0;
    right: 0;
    background: var(--color-bg-surface);
    padding: 1.5rem;
    border-bottom: 2px solid var(--color-yellow);
    box-shadow: var(--shadow-lg);
    gap: 1.25rem;
  }

  .nav-links.open .nav-link {
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 0.75rem;
    width: 100%;
  }
}

/* 5. Buttons & Interactive Elements */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-normal);
  line-height: 1.2;
  white-space: nowrap;
}

.btn-yellow {
  background-color: var(--color-yellow);
  color: var(--color-text-on-yellow);
  border-color: var(--color-yellow);
  box-shadow: 0 4px 16px var(--color-yellow-glow);
}

.btn-yellow:hover, .btn-yellow:focus {
  background-color: var(--color-yellow-hover);
  border-color: var(--color-yellow-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 208, 0, 0.4);
}

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

.btn-outline-yellow:hover, .btn-outline-yellow:focus {
  background-color: var(--color-yellow);
  color: var(--color-text-on-yellow);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--color-yellow-glow);
}

.btn-large {
  padding: 0.95rem 1.75rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-full {
  width: 100%;
}

.btn-yellow-sm {
  background-color: var(--color-yellow);
  color: var(--color-text-on-yellow);
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-yellow-sm:hover {
  background-color: var(--color-yellow-hover);
  transform: translateY(-1px);
}

.btn-secondary-compact {
  background: var(--color-bg-elevated);
  color: var(--color-text-main);
  border: 1px solid var(--border-subtle);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  cursor: pointer;
  flex: 1;
  transition: all var(--transition-fast);
}

.btn-secondary-compact:hover {
  border-color: var(--color-yellow);
  color: var(--color-yellow);
}

/* 6. Hero Section */
.hero-section {
  position: relative;
  padding-top: 3.5rem;
  padding-bottom: 4rem;
  overflow: hidden;
  background-color: var(--color-bg-base);
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.28) contrast(1.15);
  transform: scale(1.02);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(255, 208, 0, 0.12) 0%, transparent 60%),
              linear-gradient(to bottom, rgba(8, 9, 10, 0.4) 0%, rgba(8, 9, 10, 0.95) 85%, #08090a 100%);
}

.hazard-stripes {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: repeating-linear-gradient(
    -45deg,
    #ffd000,
    #ffd000 12px,
    #000000 12px,
    #000000 24px
  );
}

.hero-container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 208, 0, 0.15);
  border: 1px solid var(--color-yellow-border);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--color-yellow);
  margin-bottom: 1.25rem;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-yellow);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-yellow);
}

.hero-title {
  font-size: clamp(2.4rem, 6.5vw, 4.4rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.highlight-yellow {
  color: var(--color-yellow);
  text-shadow: 0 0 30px rgba(255, 208, 0, 0.3);
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  line-height: 1.6;
  color: #e2e8f0;
  margin-bottom: 1.75rem;
  max-width: 680px;
}

.hero-subtitle strong {
  color: var(--color-yellow);
}

.hero-service-feature {
  margin-bottom: 2rem;
}

.service-feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(18, 19, 24, 0.85);
  border: 1px solid rgba(255, 208, 0, 0.4);
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: #f8fafc;
}

.service-feature-tag svg {
  color: var(--color-yellow);
  flex-shrink: 0;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 3rem;
}

@media (min-width: 600px) {
  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

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

@media (min-width: 768px) {
  .hero-stats-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }
}

.stat-card {
  background: rgba(18, 19, 24, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  padding: 1rem;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-yellow);
}

.stat-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
  margin-bottom: 0.25rem;
}

.stat-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
}

.stat-value.highlight {
  color: var(--color-yellow);
}

/* 7. Section Headers */
.section-header {
  margin-bottom: 3rem;
}

.section-header.text-center {
  text-align: center;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--color-yellow);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  border-left: 3px solid var(--color-yellow);
  padding-left: 0.5rem;
}

.section-header.text-center .section-badge {
  border-left: none;
  border-bottom: 2px solid var(--color-yellow);
  padding-left: 0;
  padding-bottom: 0.25rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 650px;
}

/* 8. Materials Section */
.materials-section {
  background-color: var(--color-bg-base);
}

.materials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 600px) {
  .materials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1040px) {
  .materials-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Custom Scrap Callout Banner */
.custom-scrap-callout {
  margin-top: 2rem;
  background: linear-gradient(135deg, rgba(255, 208, 0, 0.08) 0%, rgba(20, 22, 28, 0.95) 100%);
  border: 1px solid var(--color-yellow-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
}

@media (min-width: 820px) {
  .custom-scrap-callout {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.callout-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(255, 208, 0, 0.15);
  color: var(--color-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.callout-content {
  flex: 1;
}

.callout-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.35rem;
}

.callout-desc {
  font-size: 0.92rem;
  color: #cbd5e1;
  line-height: 1.55;
  margin: 0;
}

.callout-cta {
  flex-shrink: 0;
  white-space: nowrap;
}

.material-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

.material-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-yellow-border);
  box-shadow: 0 16px 36px -10px rgba(255, 208, 0, 0.15), var(--shadow-card);
}

.card-image-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: #0d0e12;
}

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

.material-card:hover .card-image {
  transform: scale(1.06);
}

.material-tag {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  background: rgba(8, 9, 10, 0.85);
  backdrop-filter: blur(4px);
  color: var(--color-yellow);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-yellow-border);
}

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

.material-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.material-description {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.55;
}

.material-points {
  list-style: none;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: #cbd5e1;
}

.material-points li {
  position: relative;
  padding-left: 1.25rem;
}

.material-points li::before {
  content: "■";
  position: absolute;
  left: 0;
  color: var(--color-yellow);
  font-size: 0.7rem;
  top: 1px;
}

.card-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

/* 9. Services Section */
.services-section {
  background-color: var(--color-bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.services-dual-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
  .services-dual-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.service-card:hover {
  border-color: var(--color-yellow);
  box-shadow: 0 12px 30px -5px rgba(0, 0, 0, 0.6);
  transform: translateY(-4px);
}

.service-icon-box {
  width: 58px;
  height: 58px;
  background: var(--color-yellow-tint);
  border: 1px solid var(--color-yellow-border);
  color: var(--color-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
}

.service-pill-flag {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--color-yellow);
  margin-bottom: 0.5rem;
}

.service-name {
  font-size: 1.65rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 1rem;
}

.service-text {
  font-size: 0.98rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.service-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 2rem;
  font-size: 0.92rem;
  color: #e2e8f0;
}

.service-checklist li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.service-checklist li::before {
  content: "✔";
  color: var(--color-yellow);
  font-weight: 900;
}

.service-action-link {
  background: none;
  border: none;
  padding: 0;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  margin-top: auto;
  color: var(--color-yellow);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.service-action-link:hover {
  gap: 0.75rem;
  text-decoration: underline;
  color: var(--color-yellow-hover);
}

.both-banner {
  background: #08090a;
  border: 1px solid var(--color-yellow-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.both-badge {
  background: var(--color-yellow);
  color: var(--color-text-on-yellow);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
}

.both-banner p {
  color: #cbd5e1;
  font-size: 1rem;
  flex: 1;
  min-width: 260px;
}

.both-banner strong {
  color: var(--color-yellow);
}

/* 10. WhatsApp Inquiry Builder Section */
.inquiry-section {
  background-color: var(--color-bg-base);
}

.inquiry-card {
  background: var(--color-bg-surface);
  border: 2px solid var(--color-yellow-border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  max-width: 780px;
  margin: 0 auto;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), 0 0 30px rgba(255, 208, 0, 0.1);
  position: relative;
}

@media (min-width: 600px) {
  .inquiry-card {
    padding: 2.75rem;
  }
}

.inquiry-card-header {
  margin-bottom: 2rem;
}

.inquiry-title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.inquiry-subtitle {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.inquiry-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: #ffffff;
}

.req {
  color: var(--color-yellow);
}

.form-control {
  width: 100%;
  background: var(--color-bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  color: #ffffff;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-yellow);
  box-shadow: 0 0 0 3px rgba(255, 208, 0, 0.2);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23ffd000' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* Radio Tiles for Service */
.radio-toggle-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 500px) {
  .radio-toggle-group {
    grid-template-columns: 1fr 1fr;
  }
}

.radio-tile {
  cursor: pointer;
  position: relative;
}

.radio-tile input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.tile-content {
  display: flex;
  flex-direction: column;
  padding: 1rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.radio-tile input:checked + .tile-content {
  border-color: var(--color-yellow);
  background: rgba(255, 208, 0, 0.08);
  box-shadow: 0 0 12px rgba(255, 208, 0, 0.15);
}

.tile-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: #ffffff;
}

.tile-sub {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Number selector */
.number-selector {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

@media (min-width: 500px) {
  .number-selector {
    grid-template-columns: 1fr 1fr;
  }
}

.number-choice {
  cursor: pointer;
}

.number-choice input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.number-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.number-choice input:checked + .number-box {
  border-color: var(--color-yellow);
  background: rgba(255, 208, 0, 0.08);
}

.num-badge {
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 6px;
  background: var(--color-yellow);
  color: var(--color-text-on-yellow);
  border-radius: var(--radius-sm);
}

.num-text {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  color: #ffffff;
}

/* Message Preview Box */
.message-preview-container {
  background: #08090a;
  border: 1px dashed var(--color-yellow-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
}

.preview-label {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--color-yellow);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

.message-preview {
  font-size: 0.88rem;
  color: #e2e8f0;
  line-height: 1.5;
  font-style: italic;
  word-break: break-word;
}



/* 13. Footer */
.site-footer {
  background-color: #040506;
  border-top: 1px solid var(--border-subtle);
  padding-top: 3.5rem;
  padding-bottom: 2rem;
  color: var(--color-text-muted);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-desc {
  font-size: 0.9rem;
  margin-top: 0.75rem;
  max-width: 400px;
}

.footer-nav, .footer-contacts {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-nav-title {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #ffffff;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.footer-nav a, .footer-contact-link, .footer-nav-link {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  background: none;
  border: none;
  padding: 0;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
}

.footer-nav a:hover, .footer-contact-link:hover, .footer-nav-link:hover,
.footer-nav a:focus, .footer-contact-link:focus, .footer-nav-link:focus {
  color: var(--color-yellow);
}

.footer-contact-btn {
  background: none;
  border: none;
  padding: 0;
  text-align: left;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-yellow);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.footer-nav a:hover, .footer-contact-link:hover, .footer-contact-btn:hover {
  color: var(--color-yellow-hover);
}

.footer-contact-btn:hover {
  text-decoration: underline;
  transform: translateX(3px);
}

.footer-loc {
  font-size: 0.85rem;
  color: var(--color-yellow);
  margin-top: 0.25rem;
  font-weight: 600;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  color: var(--color-text-dim);
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-lightweight {
  color: var(--color-yellow);
  font-weight: 600;
}

/* 14. Mobile Sticky Bottom Action Bar */
.mobile-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  display: flex;
  padding: 0.6rem 0.75rem;
  background: rgba(8, 9, 10, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 2px solid var(--color-yellow);
  gap: 0.6rem;
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.6);
}

@media (min-width: 768px) {
  .mobile-sticky-bar {
    display: none;
  }
}

.sticky-wa-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  height: 48px; /* Accessible 48px touch target */
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 0.88rem;
  font-family: inherit;
  border: none;
  cursor: pointer;
  transition: transform var(--transition-fast), filter var(--transition-fast);
}

.sticky-wa-btn.primary {
  background-color: var(--color-yellow);
  color: var(--color-text-on-yellow);
}

.sticky-wa-btn.secondary {
  background-color: var(--color-bg-elevated);
  color: var(--color-yellow);
  border: 1px solid var(--color-yellow-border);
}

.sticky-wa-btn:active {
  transform: scale(0.97);
}

/* 15. Accessible Modal Dialog */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.modal-overlay[hidden] {
  display: none !important;
}

.modal-overlay:not([hidden]) {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: var(--color-bg-surface);
  border: 2px solid var(--color-yellow);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 480px;
  padding: 1.75rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.9), 0 0 40px rgba(255, 208, 0, 0.2);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-overlay:not([hidden]) .modal-card {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.modal-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
}

.modal-close {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.75rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--color-yellow);
}

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

.modal-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.modal-wa-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.modal-wa-btn:hover {
  border-color: var(--color-yellow);
  background: rgba(255, 208, 0, 0.08);
}

.modal-wa-btn:focus-visible {
  outline: 2px solid var(--color-yellow);
  outline-offset: 2px;
}

.modal-wa-badge {
  font-size: 0.7rem;
  font-weight: 800;
  background: var(--color-yellow);
  color: var(--color-text-on-yellow);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.modal-wa-info {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.modal-wa-info strong {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 800;
  color: #ffffff;
}

.modal-wa-info span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.modal-arrow {
  color: var(--color-yellow);
  font-size: 1.25rem;
  font-weight: 700;
}

/* 16. Toast Component */
.toast {
  position: fixed;
  bottom: 5.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--color-yellow);
  color: var(--color-text-on-yellow);
  font-weight: 800;
  font-size: 0.9rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

@media (min-width: 768px) {
  .toast {
    bottom: 2rem;
  }
}

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