/* 
  ==============================================================
  HD SHINE DEEP CLEANING SERVICES
  Ultra-Clean Modern Minimalist & Architectural Luxury Design System
  Uniform Design Language • SEO & GEO Optimized • Responsive
  ==============================================================
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* --- Design Tokens & Themes --- */
:root {
  /* Default: Luminous Architectural Clean (Light Minimalist) */
  --bg-primary: #FAFAF9;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F1F3F5;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.82);
  --bg-tag: rgba(197, 128, 102, 0.08);
  
  --border-color: rgba(226, 232, 240, 0.95);
  --border-subtle: rgba(241, 245, 249, 0.8);
  --border-accent: rgba(197, 128, 102, 0.28);
  --border-focus: #C58066;

  --text-headline: #090E17;
  --text-body: #334155;
  --text-muted: #64748B;
  --text-faint: #94A3B8;

  --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-card: 0 10px 30px -10px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.02);
  --shadow-elevated: 0 20px 45px -15px rgba(15, 23, 42, 0.12), 0 8px 16px -4px rgba(15, 23, 42, 0.03);
  --shadow-copper: 0 10px 25px -5px rgba(197, 128, 102, 0.25);

  /* Signature Metallic Copper & Neutral Palette */
  --copper-primary: #C58066;
  --copper-hover: #B57056;
  --copper-light: #F7EBE6;
  --copper-border: rgba(197, 128, 102, 0.35);
  --grad-copper: linear-gradient(135deg, #C58066 0%, #E6B6A5 45%, #C58066 80%, #A2593E 100%);
  --grad-silver: linear-gradient(135deg, #475569 0%, #94A3B8 50%, #334155 100%);
  --grad-surface: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);

  --color-whatsapp: #25D366;
  --color-whatsapp-hover: #1EBE5D;
  --color-trust-blue: #0284C7;

  /* Typography */
  --font-headings: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  /* Sizing & Transitions */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --header-height: 80px;
}

/* --- Dark Theme: Obsidian Luxury Minimalist --- */
[data-theme="dark"] {
  --bg-primary: #070B12;
  --bg-secondary: #0D1322;
  --bg-tertiary: #131A2E;
  --bg-surface: #0E1626;
  --bg-surface-elevated: #141E34;
  --bg-glass: rgba(13, 19, 34, 0.85);
  --bg-tag: rgba(197, 128, 102, 0.12);

  --border-color: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --border-accent: rgba(197, 128, 102, 0.35);

  --text-headline: #F8FAFC;
  --text-body: #94A3B8;
  --text-muted: #64748B;
  --text-faint: #475569;

  --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-card: 0 15px 35px -10px rgba(0, 0, 0, 0.6);
  --shadow-elevated: 0 25px 50px -15px rgba(0, 0, 0, 0.8);
  --shadow-copper: 0 10px 30px -5px rgba(197, 128, 102, 0.3);

  --grad-surface: linear-gradient(180deg, #0E1626 0%, #0A0F1D 100%);
  --grad-silver: linear-gradient(135deg, #94A3B8 0%, #E2E8F0 50%, #64748B 100%);
}

/* --- Global Reset & Foundation --- */
*, *::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);
  background-color: var(--bg-primary);
  color: var(--text-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

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

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

/* --- Layout Utility Classes --- */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

section {
  padding: 7rem 0;
  position: relative;
}

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3.5rem;
  align-items: center;
}

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

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

/* --- Typography & Headings --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-headings);
  color: var(--text-headline);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

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

.gradient-silver {
  background: var(--grad-silver);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Minimalist Section Headers */
.section-header {
  max-width: 760px;
  margin: 0 auto 4.5rem auto;
}

.section-title {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-tag);
  color: var(--copper-primary);
  border: 1px solid var(--border-accent);
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-full);
  font-family: var(--font-headings);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.badge-pill svg {
  width: 14px;
  height: 14px;
  stroke-width: 2.5;
}

/* --- Buttons & Interactive Elements --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-headings);
  font-size: 0.925rem;
  font-weight: 600;
  padding: 0.85rem 1.85rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad-copper);
  color: #FFFFFF;
  box-shadow: var(--shadow-copper);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -4px rgba(197, 128, 102, 0.4);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-headline);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-subtle);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: var(--color-whatsapp);
  color: #FFFFFF;
  box-shadow: 0 6px 20px -4px rgba(37, 211, 102, 0.4);
}

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

.btn-sm {
  padding: 0.55rem 1.25rem;
  font-size: 0.85rem;
}

.btn-full {
  width: 100%;
}

/* --- Header & Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: all var(--transition-smooth);
  background: transparent;
}

.site-header.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-subtle);
  height: 72px;
}

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

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  transition: transform var(--transition-fast);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link-item a {
  font-family: var(--font-headings);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-body);
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.4rem 0;
}

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

.nav-link-item a:hover {
  color: var(--text-headline);
}

.nav-link-item a:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-headline);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  border-color: var(--copper-primary);
  transform: rotate(15deg);
}

.theme-toggle-btn svg {
  width: 18px;
  height: 18px;
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-headline);
  margin: 5px 0;
  transition: all var(--transition-fast);
}

/* --- Hero Section: Architectural Luxury --- */
.hero-section {
  padding-top: calc(var(--header-height) + 4rem);
  padding-bottom: 6rem;
  position: relative;
  overflow: hidden;
}

.hero-glow-1 {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(197, 128, 102, 0.12) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(80px);
}

.hero-glow-2 {
  position: absolute;
  bottom: 10%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(2, 132, 199, 0.08) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(80px);
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-headline {
  font-size: 3.75rem;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2.25rem;
  max-width: 90%;
}

.hero-service-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 2.5rem;
}

.service-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-body);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.service-pill-btn:hover, .service-pill-btn.active {
  background: var(--bg-tertiary);
  border-color: var(--copper-primary);
  color: var(--text-headline);
  transform: translateY(-1px);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* Hero Showcase Visuals */
.hero-visual-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
}

.hero-img-stack {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.hero-primary-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-visual-card:hover .hero-primary-img {
  transform: scale(1.04);
}

/* Floating Status Chips on Hero */
.hero-floating-chip {
  position: absolute;
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  box-shadow: var(--shadow-card);
  z-index: 3;
}

.chip-bottom-left {
  bottom: 1.5rem;
  left: 1.5rem;
}

.chip-top-right {
  top: 1.5rem;
  right: 1.5rem;
}

.chip-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-tag);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--copper-primary);
  flex-shrink: 0;
}

.chip-icon svg {
  width: 18px;
  height: 18px;
}

.chip-text strong {
  display: block;
  font-family: var(--font-headings);
  font-size: 0.9rem;
  color: var(--text-headline);
  line-height: 1.2;
}

.chip-text span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- Credentials & Key Metrics Banner --- */
.credentials-banner {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 3rem 0;
  position: relative;
  z-index: 10;
}

.metric-item {
  text-align: center;
  padding: 1rem;
  position: relative;
}

.metric-number {
  font-family: var(--font-headings);
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 0.45rem;
}

.metric-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Services Showcase Section --- */
.services-section {
  background: var(--bg-primary);
}

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

.service-card-modern:hover {
  transform: translateY(-6px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-card);
}

.service-card-image-box {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.service-card-image-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-card-modern:hover .service-card-image-box img {
  transform: scale(1.06);
}

.service-badge-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(9, 14, 23, 0.75);
  backdrop-filter: blur(10px);
  color: #FFFFFF;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.service-card-body {
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-card-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.service-target-tag {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--copper-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}

.service-card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-checklist {
  list-style: none;
  margin-bottom: 1.75rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.service-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.875rem;
  color: var(--text-body);
}

.service-checklist svg {
  width: 16px;
  height: 16px;
  color: var(--copper-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.service-card-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tech-spec-badge {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

/* --- 5-Stage Scientific Protocol --- */
.protocol-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.protocol-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  position: relative;
}

.protocol-step-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  position: relative;
  transition: all var(--transition-fast);
}

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

.step-number {
  font-family: var(--font-headings);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--copper-primary);
  margin-bottom: 0.75rem;
  display: block;
}

.step-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* --- Comparison Matrix Section --- */
.matrix-section {
  background: var(--bg-primary);
}

.comparison-table-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th, .comparison-table td {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  font-family: var(--font-headings);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--bg-tertiary);
  color: var(--text-headline);
}

.comparison-table td {
  font-size: 0.9rem;
  color: var(--text-body);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.col-feature {
  font-weight: 600;
  width: 34%;
}

.col-regular {
  color: var(--text-muted);
  width: 33%;
}

.col-hdshine {
  background: var(--bg-tag);
  font-weight: 600;
  color: var(--text-headline);
  width: 33%;
}

/* --- Interactive Pricing Calculator 2.0 --- */
.calculator-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.calculator-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-elevated);
  overflow: hidden;
  max-width: 1080px;
  margin: 0 auto;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.9fr;
}

.calc-controls {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.calc-group-label {
  font-family: var(--font-headings);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-headline);
  margin-bottom: 0.85rem;
  display: block;
}

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

.type-select-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
  cursor: pointer;
  background: var(--bg-surface);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.type-select-card input[type="radio"] {
  accent-color: var(--copper-primary);
}

.type-select-card:hover, .type-select-card.selected {
  border-color: var(--copper-primary);
  background: var(--bg-tag);
}

.type-select-text strong {
  display: block;
  font-size: 0.85rem;
  color: var(--text-headline);
}

.type-select-text span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Area Slider */
.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.area-counter-badge {
  background: var(--grad-copper);
  color: #FFFFFF;
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-full);
  font-family: var(--font-headings);
  font-weight: 700;
  font-size: 0.9rem;
}

.modern-range-slider {
  width: 100%;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--border-color);
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
}

.modern-range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--copper-primary);
  border: 3px solid #FFFFFF;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.modern-range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.18);
}

/* Addon Toggles */
.addons-checklist {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.addon-card-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.addon-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-headline);
}

.addon-left input[type="checkbox"] {
  accent-color: var(--copper-primary);
  width: 16px;
  height: 16px;
}

.addon-price-tag {
  font-family: var(--font-headings);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--copper-primary);
}

/* Calc Result Side Panel */
.calc-summary-panel {
  background: var(--bg-surface-elevated);
  border-left: 1px solid var(--border-color);
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  position: relative;
}

.summary-tag {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.total-estimate-display {
  font-family: var(--font-headings);
  font-size: 2.85rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  line-height: 1.1;
}

.estimate-notice {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 2rem;
}

.calc-action-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

/* --- AI-Optimized FAQ Section --- */
.faq-section {
  background: var(--bg-primary);
}

.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

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

.faq-question-btn {
  width: 100%;
  padding: 1.35rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: var(--font-headings);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-headline);
  gap: 1rem;
}

.faq-chevron {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
  color: var(--copper-primary);
  flex-shrink: 0;
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.75rem;
  color: var(--text-muted);
  font-size: 0.925rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.75rem 1.5rem 1.75rem;
}

/* --- Bangalore Micro-Markets Cloud --- */
.coverage-pills-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  max-width: 900px;
  margin: 2.5rem auto 0 auto;
}

.location-tag {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.95rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-body);
}

/* --- Booking & Contact Form Section --- */
.booking-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.booking-form-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem;
  box-shadow: var(--shadow-card);
}

.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-field-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-field-group label {
  font-family: var(--font-headings);
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-headline);
}

.modern-input, .modern-select, .modern-textarea {
  width: 100%;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-headline);
  font-family: var(--font-body);
  font-size: 0.925rem;
  outline: none;
  transition: all var(--transition-fast);
}

.modern-input:focus, .modern-select:focus, .modern-textarea:focus {
  border-color: var(--copper-primary);
  background: var(--bg-surface);
  box-shadow: 0 0 0 3px rgba(197, 128, 102, 0.15);
}

/* Applied Estimate Badge in Form */
.form-calc-indicator {
  background: var(--bg-tag);
  border: 1px dashed var(--border-accent);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
}

.form-calc-indicator strong {
  color: var(--copper-primary);
}

/* Success Confirmation Overlay */
.booking-success-box {
  text-align: center;
  padding: 2.5rem 1rem;
}

.success-check-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(37, 211, 102, 0.12);
  border: 2px solid var(--color-whatsapp);
  color: var(--color-whatsapp);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem auto;
}

.success-check-icon svg {
  width: 32px;
  height: 32px;
}

/* --- Floating Quick Contact Bar (Mobile Conversion) --- */
.floating-mobile-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
  z-index: 999;
  box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.08);
}

.floating-mobile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

/* --- Footer --- */
.site-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 5rem 0 2rem 0;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 1.25rem 0;
}

.footer-col h4 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
  color: var(--text-headline);
}

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

.footer-links-list a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

.footer-contact-block p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.footer-bottom-row {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-faint);
  flex-wrap: wrap;
  gap: 1rem;
}

.hidden {
  display: none !important;
}

/* --- Comprehensive Responsive & Mobile-First Optimization --- */
@media (max-width: 1024px) {
  .hero-headline {
    font-size: 3rem;
  }
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .protocol-timeline {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .calc-grid {
    grid-template-columns: 1fr;
  }
  .calc-summary-panel {
    border-left: none;
    border-top: 1px solid var(--border-color);
  }
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  html {
    scroll-padding-top: 72px;
  }

  /* Prevent iOS Safari auto-zoom on input focus */
  input, select, textarea, .modern-input, .modern-select, .modern-textarea {
    font-size: 16px !important;
  }

  section {
    padding: 4.5rem 0;
  }

  .site-header {
    height: 68px;
  }

  .site-header.scrolled {
    height: 62px;
  }

  /* Enhanced Mobile Navigation Drawer */
  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    cursor: pointer;
    z-index: 1002;
  }

  .mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--text-headline);
    margin: 4px 0;
    transition: all var(--transition-fast);
  }

  .mobile-toggle.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

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

  .mobile-toggle.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .nav-links {
    position: fixed;
    top: 68px;
    left: 0;
    width: 100%;
    height: calc(100vh - 68px);
    background: var(--bg-surface);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.75rem;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    transform: translateY(-120%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 999;
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-link-item a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.25rem;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
    background: var(--bg-tertiary);
    color: var(--text-headline);
    min-height: 48px;
  }

  .nav-link-item a:hover {
    background: var(--bg-tag);
    border-color: var(--border-accent);
  }

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

  /* Hero Section Mobile */
  .hero-section {
    padding-top: calc(68px + 2rem);
    padding-bottom: 3.5rem;
  }

  .hero-headline {
    font-size: clamp(2.1rem, 7.5vw, 2.75rem);
    line-height: 1.15;
  }

  .hero-description {
    font-size: 1rem;
    max-width: 100%;
    margin-bottom: 1.75rem;
  }

  .hero-service-pills {
    gap: 0.5rem;
    margin-bottom: 1.75rem;
  }

  .service-pill-btn {
    min-height: 44px;
    padding: 0.5rem 0.95rem;
    font-size: 0.8rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }

  .hero-actions .btn {
    width: 100%;
    min-height: 48px;
  }

  /* Services Grid Mobile */
  .grid-3 {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .service-card-body {
    padding: 1.75rem 1.25rem;
  }

  .service-card-title {
    font-size: 1.35rem;
  }

  .service-card-footer {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .service-card-footer .btn {
    width: 100%;
    min-height: 44px;
  }

  /* Comparison Table Mobile */
  .swipe-hint {
    display: block !important;
  }

  .comparison-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -0.5rem;
    border-radius: var(--radius-md);
  }

  .comparison-table {
    min-width: 600px;
  }

  .comparison-table th, .comparison-table td {
    padding: 1rem;
    font-size: 0.85rem;
  }

  /* Calculator Mobile */
  .calc-controls {
    padding: 1.75rem 1.25rem;
    gap: 1.5rem;
  }

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

  .type-select-card {
    min-height: 52px;
  }

  .addon-card-item {
    min-height: 48px;
    padding: 0.75rem;
  }

  .modern-range-slider {
    height: 8px;
  }

  .modern-range-slider::-webkit-slider-thumb {
    width: 28px;
    height: 28px;
  }

  .calc-summary-panel {
    padding: 2.25rem 1.25rem;
  }

  .total-estimate-display {
    font-size: clamp(2rem, 7vw, 2.75rem);
  }

  .calc-action-buttons .btn {
    min-height: 48px;
  }

  /* Booking Form Mobile */
  .booking-form-box {
    padding: 1.75rem 1.25rem;
  }

  .form-grid-2 {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .modern-input, .modern-select, .modern-textarea {
    min-height: 46px;
    padding: 0.75rem 1rem;
  }

  /* Floating Mobile Quick Contact Bar */
  .floating-mobile-bar {
    display: block;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border-color);
    padding: 0.75rem 1rem calc(0.75rem + env(safe-area-inset-bottom, 0px)) 1rem;
    z-index: 999;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  }

  .floating-mobile-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .floating-mobile-grid .btn {
    min-height: 46px;
    font-size: 0.9rem;
    font-weight: 700;
  }

  body {
    padding-bottom: calc(75px + env(safe-area-inset-bottom, 0px));
  }

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

@media (max-width: 480px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

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

  .hero-floating-chip {
    padding: 0.5rem 0.85rem;
    gap: 0.65rem;
  }

  .hero-floating-chip strong {
    font-size: 0.8rem;
  }

  .hero-floating-chip span {
    font-size: 0.7rem;
  }

  .chip-top-right {
    top: 0.75rem;
    right: 0.75rem;
  }

  .chip-bottom-left {
    bottom: 0.75rem;
    left: 0.75rem;
  }

  .metric-number {
    font-size: 2.25rem;
  }

  .metric-label {
    font-size: 0.75rem;
  }

  .protocol-step-card {
    padding: 1.25rem 1rem;
  }

  .coverage-pills-wrap {
    gap: 0.45rem;
  }

  .location-tag {
    font-size: 0.75rem;
    padding: 0.35rem 0.75rem;
  }
}