/* ==========================================================================
   ArtiSpace Design Studio – Modern Responsive Stylesheet
   Art Direction: Trades Playbook / Variant B (Clean Premium Trade)
   Tokens derived strictly from design_brief.json & brand specifications
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Root Variables & Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Exact Palette from design_brief.json */
  --bg: #ffffff;
  --surface: #f8f7f5;
  --surface-alt: #f0eee9;
  --text: #181f2a;
  --muted: #4d5765;
  --primary: #182330;
  --primary-text: #ffffff;
  --accent: #c09b6c;
  --accent-hover: #b08958;
  --accent-dark: #8c6a3c; /* WCAG AA accessible contrast for text on light backgrounds */
  --accent-light: #f4eee5;
  --dark: #0f1620;
  --dark-text: #ffffff;
  
  /* Neutral Gradients & Borders */
  --border: rgba(24, 35, 48, 0.12);
  --border-light: rgba(24, 35, 48, 0.06);
  --border-dark: rgba(255, 255, 255, 0.15);
  
  /* Elevation Shadows */
  --shadow-sm: 0 2px 8px rgba(15, 22, 32, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 22, 32, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 22, 32, 0.12);
  --shadow-xl: 0 24px 60px rgba(15, 22, 32, 0.16);
  
  /* Typography Tokens */
  --font-display: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Fluid Typography Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.78rem + 0.3vw, 0.875rem);
  --text-base: clamp(0.9375rem, 0.9rem + 0.35vw, 1rem);
  --text-md: clamp(1.0625rem, 1rem + 0.4vw, 1.1875rem);
  --text-lg: clamp(1.25rem, 1.15rem + 0.6vw, 1.4375rem);
  --text-xl: clamp(1.5rem, 1.35rem + 0.9vw, 1.875rem);
  --text-2xl: clamp(1.875rem, 1.6rem + 1.4vw, 2.375rem);
  --text-3xl: clamp(2.25rem, 1.9rem + 2vw, 3.25rem);
  
  /* Layout Spacing */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --space-4xl: 6rem;
  
  /* Border Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Container Width */
  --container-max: 1240px;
  --container-padding: clamp(1rem, 4vw, 2rem);
  
  /* Sticky Header Height */
  --header-height: 80px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg);
  overflow-x: clip; /* Cleanly clip horizontal overflow without breaking sticky */
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Skip Link for Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--primary);
  color: var(--primary-text);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  z-index: 9999;
  font-weight: 700;
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--accent);
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--primary);
  line-height: 1.2;
  font-weight: 800;
  text-wrap: balance;
}

h1 { font-size: var(--text-3xl); letter-spacing: -0.03em; }
h2 { font-size: var(--text-2xl); letter-spacing: -0.02em; }
h3 { font-size: var(--text-xl); letter-spacing: -0.01em; }
h4 { font-size: var(--text-lg); }
h5 { font-size: var(--text-md); }
h6 { font-size: var(--text-base); }

p {
  color: var(--muted);
  max-width: 70ch;
}

p.lead {
  font-size: var(--text-md);
  color: var(--text);
  line-height: 1.55;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

a:hover {
  color: var(--accent-dark);
}

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

/* Accessible Focus States */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   3. Global Layout Components & Utilities
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section {
  padding-block: var(--space-3xl);
  position: relative;
}

@media (min-width: 1024px) {
  .section {
    padding-block: var(--space-4xl);
  }
}

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

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

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--dark-text);
}

.section-dark p {
  color: #c4ccd8;
}

/* Section Headers */
.section-header {
  margin-bottom: var(--space-2xl);
}

.section-header.text-center {
  text-align: center;
}

.section-header.text-center p {
  margin-inline: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-dark);
  margin-bottom: var(--space-xs);
}

.section-dark .eyebrow {
  color: var(--accent);
}

.section-title {
  margin-bottom: var(--space-sm);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: 0.875rem 1.625rem;
  min-height: 48px;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--primary-text);
  border-color: var(--primary);
}

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

.btn-accent {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.btn-accent:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: #25d366; /* WhatsApp brand green */
  color: #ffffff;
  border-color: #25d366;
}

.btn-secondary:hover {
  background-color: #1eb855;
  border-color: #1eb855;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background-color: var(--primary);
  color: var(--primary-text);
  transform: translateY(-2px);
}

.btn-outline-white {
  background-color: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
  background-color: #ffffff;
  color: var(--primary);
  border-color: #ffffff;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  min-height: 40px;
  font-size: var(--text-sm);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  align-items: center;
}

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.badge-accent {
  background-color: var(--accent-light);
  color: var(--accent-dark);
  border: 1px solid rgba(192, 155, 108, 0.3);
}

.badge-dark {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* --------------------------------------------------------------------------
   4. Header & Navigation (Direct child of <body>, Sticky, Pinned)
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition-normal), background-color var(--transition-normal);
  width: 100%;
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
  background-color: rgba(255, 255, 255, 0.98);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 1.5rem;
}

.brand-logo-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.brand-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.site-nav {
  display: none; /* Mobile first, shown at >= 1024px */
}

@media (min-width: 1024px) {
  .site-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
}

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

.nav-link {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--primary);
  padding-block: 0.5rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--accent-dark);
}

.nav-link.active {
  color: var(--accent-dark);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent);
  border-radius: var(--radius-full);
}

.header-actions {
  display: none;
  align-items: center;
  gap: 1rem;
}

@media (min-width: 1024px) {
  .header-actions {
    display: flex;
  }
}

/* Mobile Hamburger Toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 48px;
  height: 48px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
  transition: background-color var(--transition-fast);
}

.menu-toggle:hover {
  background-color: var(--surface);
}

.hamburger-bar {
  width: 22px;
  height: 2px;
  background-color: var(--primary);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

/* Mobile Drawer */
.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background-color: #ffffff;
  border-top: 1px solid var(--border);
  padding: 1.5rem var(--container-padding) 4rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  z-index: 999;
  box-shadow: var(--shadow-lg);
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-link {
  display: block;
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--primary);
  padding: 0.75rem 0.5rem;
  border-bottom: 1px solid var(--border-light);
}

.mobile-nav-link.active {
  color: var(--accent-dark);
  border-bottom-color: var(--accent);
}

.mobile-nav-ctas {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

/* --------------------------------------------------------------------------
   5. Hero Section (Split Layout)
   -------------------------------------------------------------------------- */
.hero {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  background: linear-gradient(180deg, #ffffff 0%, var(--surface) 100%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-3xl);
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--accent-light);
  color: var(--accent-dark);
  border: 1px solid rgba(192, 155, 108, 0.3);
  padding: 0.35rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.05em;
  width: fit-content;
}

.hero-headline {
  font-size: var(--text-3xl);
  line-height: 1.15;
}

.hero-subheadline {
  font-size: var(--text-md);
  color: var(--muted);
  line-height: 1.6;
}

.hero-proof {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.625rem;
  padding: 0.75rem 1rem;
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  width: fit-content;
}

.proof-stars {
  color: #f59e0b;
  display: inline-flex;
  gap: 2px;
}

.proof-dot {
  color: var(--border);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 0.5rem;
}

.hero-visual {
  position: relative;
}

.hero-img-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  aspect-ratio: 5 / 4;
  border: 1px solid var(--border);
}

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

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

.hero-floating-card {
  position: absolute;
  bottom: -1rem;
  left: -1rem;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.875rem 1.25rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.875rem;
  max-width: 280px;
}

@media (max-width: 640px) {
  .hero-floating-card {
    position: static;
    margin-top: 1rem;
    max-width: 100%;
  }
}

.hero-floating-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background-color: var(--primary);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hero-floating-text {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--primary);
  line-height: 1.35;
}

/* --------------------------------------------------------------------------
   6. Trust Strip & Accreditations (#trust-credentials)
   -------------------------------------------------------------------------- */
.trust-strip {
  background-color: #ffffff;
  border-block: 1px solid var(--border);
  padding-block: var(--space-xl);
}

.trust-title {
  text-align: center;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: var(--space-lg);
}

.trust-badges-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  align-items: center;
  justify-items: center;
}

@media (min-width: 640px) {
  .trust-badges-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .trust-badges-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
  }
}

.trust-badge-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
  padding: 1rem;
  background-color: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 220px;
  height: 100%;
  justify-content: center;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.trust-badge-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
  border-color: var(--border);
}

.trust-badge-img {
  max-height: 52px;
  width: auto;
  object-fit: contain;
  filter: grayscale(15%);
  transition: filter var(--transition-fast);
}

.trust-badge-item:hover .trust-badge-img {
  filter: grayscale(0%);
}

.trust-badge-label {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--primary);
  line-height: 1.25;
}

.trust-badge-sub {
  font-size: 0.7rem;
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   7. SIGNATURE SECTION: Interactive Before & After Slider
   -------------------------------------------------------------------------- */
.signature-section {
  background-color: var(--primary);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.signature-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(192, 155, 108, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.signature-tabs {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.signature-tab-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.signature-tab-btn:hover {
  background: rgba(255, 255, 255, 0.16);
}

.signature-tab-btn.active {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(192, 155, 108, 0.35);
}

/* Slider Container */
.ba-comparison-wrapper {
  max-width: 1040px;
  margin-inline: auto;
  position: relative;
}

.ba-slider-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  min-height: 380px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.15);
  user-select: none;
  touch-action: pan-y;
}

@media (max-width: 640px) {
  .ba-slider-container {
    aspect-ratio: 4 / 3;
    min-height: 320px;
  }
}

.ba-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.ba-before-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.ba-after-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
  transition: clip-path 0.05s linear;
}

/* Floating Badges */
.ba-badge {
  position: absolute;
  top: 1rem;
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  z-index: 4;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.ba-badge-before {
  right: 1rem;
  background-color: rgba(15, 22, 32, 0.75);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.ba-badge-after {
  left: 1rem;
  background-color: rgba(192, 155, 108, 0.9);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Tactile Divider Handle */
.ba-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  background-color: #ffffff;
  z-index: 5;
  transform: translateX(-50%);
  pointer-events: none;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.5);
}

.ba-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: #ffffff;
  color: var(--primary);
  border: 3px solid var(--accent);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  pointer-events: none;
}

.ba-handle svg {
  width: 18px;
  height: 18px;
}

/* Range input overlay for keyboard and touch accessibility */
.ba-range-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  z-index: 6;
  margin: 0;
  padding: 0;
}

/* Interactive Callout Pins on After Image */
.ba-callout-pin {
  position: absolute;
  z-index: 4;
  transform: translate(-50%, -50%);
  pointer-events: auto;
}

.ba-pin-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background-color: var(--accent);
  color: #ffffff;
  border: 2px solid #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  position: relative;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.ba-pin-btn::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: var(--radius-full);
  border: 2px solid var(--accent);
  animation: pulsePin 2s infinite;
  opacity: 0.7;
}

@keyframes pulsePin {
  0% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 0.2; }
  100% { transform: scale(0.9); opacity: 0.8; }
}

.ba-pin-btn:hover,
.ba-pin-btn:focus-visible {
  transform: scale(1.15);
  background-color: var(--accent-hover);
}

.ba-pin-tooltip {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--dark);
  color: #ffffff;
  border: 1px solid var(--accent);
  padding: 0.625rem 0.875rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  line-height: 1.35;
  width: max-content;
  max-width: 220px;
  box-shadow: var(--shadow-lg);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 10;
}

.ba-pin-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 6px;
  border-style: solid;
  border-color: var(--dark) transparent transparent transparent;
}

.ba-pin-btn:hover + .ba-pin-tooltip,
.ba-pin-btn:focus-visible + .ba-pin-tooltip,
.ba-callout-pin.is-active .ba-pin-tooltip {
  opacity: 1;
  visibility: visible;
  bottom: calc(100% + 8px);
}

.signature-note {
  text-align: center;
  font-size: var(--text-sm);
  color: #a0aec0;
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

/* --------------------------------------------------------------------------
   8. Core Services Grid (#services-grid)
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.75rem;
  }
}

.service-card {
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  position: relative;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.service-card-num {
  font-size: var(--text-xs);
  font-weight: 800;
  color: var(--accent-dark);
  letter-spacing: 0.1em;
}

.service-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background-color: var(--surface);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-light);
}

.service-card-icon svg {
  width: 26px;
  height: 26px;
}

.service-card-title {
  font-size: var(--text-md);
  color: var(--primary);
  line-height: 1.3;
}

.service-card-desc {
  font-size: var(--text-sm);
  color: var(--muted);
  line-height: 1.55;
  flex-grow: 1;
}

.service-card-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  font-size: var(--text-xs);
  color: var(--primary);
  font-weight: 600;
  border-top: 1px solid var(--border-light);
  padding-top: 0.75rem;
}

.service-card-list li {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.service-card-list li svg {
  width: 14px;
  height: 14px;
  color: var(--accent-dark);
  flex-shrink: 0;
}

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--accent-dark);
  margin-top: 0.5rem;
}

.service-card-link:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   9. Renovation Packages & Pricing (#renovation-packages)
   -------------------------------------------------------------------------- */
.packages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 1024px) {
  .packages-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

.package-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.package-card.is-popular {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow-md);
}

.package-ribbon {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background-color: var(--accent);
  color: #ffffff;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.05em;
  z-index: 2;
}

.package-image-wrap {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
  background-color: var(--surface);
}

.package-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.package-card:hover .package-image-wrap img {
  transform: scale(1.04);
}

.package-content {
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  flex-grow: 1;
}

.package-header {
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 1rem;
}

.package-target {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-dark);
  font-weight: 700;
}

.package-name {
  font-size: var(--text-xl);
  color: var(--primary);
  margin-block: 0.25rem;
}

.package-baseline-price {
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
  margin-top: 0.5rem;
}

.package-from {
  font-size: var(--text-sm);
  color: var(--muted);
  font-weight: 600;
}

.package-price-num {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--primary);
  font-family: var(--font-display);
}

/* Tiered Room Breakdowns */
.package-tiers {
  background-color: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.package-tier-title {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.package-tier-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-sm);
  padding-block: 0.25rem;
  border-bottom: 1px dashed var(--border-light);
}

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

.package-tier-label {
  font-weight: 600;
  color: var(--muted);
}

.package-tier-val {
  font-weight: 800;
  color: var(--primary);
}

.package-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: var(--text-sm);
  color: var(--text);
  flex-grow: 1;
}

.package-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  line-height: 1.4;
}

.package-features li svg {
  width: 16px;
  height: 16px;
  color: #10b981;
  flex-shrink: 0;
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   10. Featured Residential Projects (#featured-projects)
   -------------------------------------------------------------------------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.project-thumb {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--surface);
}

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

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

.project-tag {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  background-color: rgba(15, 22, 32, 0.85);
  color: #ffffff;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 700;
  backdrop-filter: blur(4px);
}

.project-info {
  padding: 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-grow: 1;
}

.project-title {
  font-size: var(--text-md);
  color: var(--primary);
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--text-xs);
  color: var(--muted);
}

.project-desc {
  font-size: var(--text-sm);
  color: var(--muted);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   11. 5-Step Renovation Roadmap (#renovation-process)
   -------------------------------------------------------------------------- */
.process-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  position: relative;
}

@media (min-width: 768px) {
  .process-timeline {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .process-timeline {
    grid-template-columns: repeat(5, 1fr);
  }
}

.process-step-card {
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.process-step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.process-step-num {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--accent);
  font-family: var(--font-display);
  line-height: 1;
}

.process-step-title {
  font-size: var(--text-base);
  color: var(--primary);
  font-weight: 700;
  line-height: 1.3;
}

.process-step-desc {
  font-size: var(--text-sm);
  color: var(--muted);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   12. Island-Wide Coverage & Joo Chiat Studio (#areas-covered)
   -------------------------------------------------------------------------- */
.studio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .studio-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.studio-img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
}

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

.estate-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.estate-chip {
  background-color: var(--surface);
  border: 1px solid var(--border-light);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--primary);
}

/* --------------------------------------------------------------------------
   13. Client Testimonials & Endorsements (#client-reviews)
   -------------------------------------------------------------------------- */
.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

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

@media (min-width: 1024px) {
  .reviews-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.review-card {
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.review-stars {
  color: #f59e0b;
  display: flex;
  gap: 2px;
}

.review-source {
  font-size: var(--text-xs);
  color: var(--muted);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.review-quote {
  font-size: var(--text-sm);
  color: var(--text);
  line-height: 1.6;
  font-style: normal;
  flex-grow: 1;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-top: 1px solid var(--border-light);
  padding-top: 0.875rem;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--surface);
  color: var(--accent-dark);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-sm);
}

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

.author-name {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--primary);
}

.author-scope {
  font-size: var(--text-xs);
  color: var(--muted);
}

/* Review Verification Screenshots */
.verification-strip {
  margin-top: var(--space-2xl);
  padding: 1.5rem;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.verification-title {
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1rem;
}

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

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

.verification-item {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
  background-color: #ffffff;
}

.verification-item img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform var(--transition-fast);
}

.verification-item:hover img {
  transform: scale(1.03);
}

/* --------------------------------------------------------------------------
   14. Frequently Asked Questions (#faq-section)
   -------------------------------------------------------------------------- */
.faq-container {
  max-width: 860px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background-color: #ffffff;
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

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

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: none;
  border: none;
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--primary);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--accent-dark);
}

.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
  color: var(--accent);
}

.faq-item[open] .faq-icon,
.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem;
  font-size: var(--text-base);
  color: var(--muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   15. Consultation Booking & Enquiry Form (#consultation-enquiry)
   -------------------------------------------------------------------------- */
.enquiry-wrapper {
  background-color: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: clamp(1.5rem, 4vw, 3rem);
  max-width: 860px;
  margin-inline: auto;
}

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

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

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

.form-label {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--primary);
}

.form-label .req {
  color: #dc2626;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--text);
  background-color: #ffffff;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(192, 155, 108, 0.2);
  outline: none;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23182330' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px;
  padding-right: 2.5rem;
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.form-help {
  font-size: var(--text-xs);
  color: var(--muted);
}

.form-status {
  padding: 1rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  display: none;
  margin-top: 1rem;
}

.form-status.is-success {
  display: block;
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.form-status.is-error {
  display: block;
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* --------------------------------------------------------------------------
   16. Urgent Assistance & Hotline Band (#urgent-assistance)
   -------------------------------------------------------------------------- */
.urgent-band {
  background-color: var(--dark);
  color: #ffffff;
  border-top: 2px solid var(--accent);
  padding-block: var(--space-xl);
}

.urgent-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .urgent-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.urgent-title {
  font-size: var(--text-lg);
  color: #ffffff;
  margin-bottom: 0.25rem;
}

.urgent-desc {
  font-size: var(--text-sm);
  color: #a0aec0;
}

/* --------------------------------------------------------------------------
   17. Footer Component (Multi-Column)
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--primary);
  color: #ffffff;
  border-top: 1px solid var(--border-dark);
  padding-top: var(--space-3xl);
  padding-bottom: calc(var(--space-xl) + 60px); /* Extra space for mobile sticky bar */
  margin-top: auto;
}

@media (min-width: 768px) {
  .site-footer {
    padding-bottom: var(--space-xl);
  }
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: var(--space-2xl);
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.4fr 0.8fr 1fr 1.2fr;
    gap: 3rem;
  }
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  background-color: #ffffff;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.footer-bio {
  font-size: var(--text-sm);
  color: #c4ccd8;
  line-height: 1.6;
}

.footer-trust-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.5rem;
}

.footer-heading {
  font-size: var(--text-md);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.25rem;
  position: relative;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-links a {
  color: #c4ccd8;
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

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

.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: var(--text-sm);
  color: #c4ccd8;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-contact-item a {
  color: #ffffff;
  font-weight: 600;
}

.footer-contact-item a:hover {
  color: var(--accent);
}

.footer-social-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.social-link-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-link-btn:hover {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  transform: translateY(-2px);
}

.social-link-btn svg {
  width: 18px;
  height: 18px;
}

.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: var(--text-xs);
  color: #8c97a8;
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-credits {
  font-size: 0.75rem;
  color: #718096;
}

/* --------------------------------------------------------------------------
   18. Mobile Sticky Bottom Bar (Trades Playbook Mandatory)
   -------------------------------------------------------------------------- */
.mobile-sticky-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 990;
  background-color: #ffffff;
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
  padding: 0.625rem var(--container-padding);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

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

.mobile-bar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 44px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 700;
  text-align: center;
  text-decoration: none;
}

.mobile-bar-call {
  background-color: var(--primary);
  color: #ffffff;
}

.mobile-bar-whatsapp {
  background-color: #25d366;
  color: #ffffff;
}

/* --------------------------------------------------------------------------
   19. Back-to-Top Button
   -------------------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 80px; /* Above mobile sticky bar */
  right: 1.25rem;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--primary);
  color: #ffffff;
  border: 2px solid var(--accent);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 950;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-normal), background-color var(--transition-fast);
}

@media (min-width: 768px) {
  .back-to-top {
    bottom: 24px;
  }
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* --------------------------------------------------------------------------
   20. Itemised Scope Comparison Table (Packages Page & Section)
   -------------------------------------------------------------------------- */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  background-color: #ffffff;
  margin-block: var(--space-xl);
  -webkit-overflow-scrolling: touch;
}

.scope-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: var(--text-sm);
  min-width: 680px;
}

.scope-table th,
.scope-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-light);
}

.scope-table thead th {
  background-color: var(--surface);
  color: var(--primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: sticky;
  top: 0;
}

.scope-table thead th.highlight {
  background-color: var(--accent-light);
  color: var(--accent-dark);
  border-inline: 1px solid rgba(192, 155, 108, 0.3);
}

.scope-table tbody tr:hover {
  background-color: #faf9f7;
}

.scope-table td.highlight {
  background-color: rgba(244, 238, 229, 0.4);
  font-weight: 600;
  border-inline: 1px solid rgba(192, 155, 108, 0.2);
}

.table-check {
  color: #10b981;
  font-weight: bold;
}

.table-cross {
  color: #94a3b8;
}

/* --------------------------------------------------------------------------
   21. Portfolio Filter & Lightbox
   -------------------------------------------------------------------------- */
.portfolio-filter-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-bottom: var(--space-2xl);
}

.filter-btn {
  background-color: var(--surface);
  border: 1px solid var(--border);
  color: var(--primary);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--accent);
}

.filter-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 22, 32, 0.94);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

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

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xl);
}

.lightbox-caption {
  color: #ffffff;
  font-size: var(--text-sm);
  margin-top: 1rem;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

/* --------------------------------------------------------------------------
   22. Motion & Scroll Reveals (Respects prefers-reduced-motion)
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .reveal.is-revealed {
    opacity: 1;
    transform: translateY(0);
  }
}