/* ==========================================================================
   Vertex Siam — Core Architectural & Component Styles
   European Engineering & Full-Cycle Villa Ecosystem
   Fully Responsive & Mobile-Optimized (iPhone SE to 4K Ultra-wide)
   ========================================================================== */

@import url('tokens.css');

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  color-scheme: dark;
  overflow-x: hidden;
  max-width: 100%;
}

html[data-theme="light"] {
  color-scheme: light;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  max-width: 100%;
  width: 100%;
  position: relative;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

/* Background subtle ambient glow */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 20%;
  width: 60vw;
  height: 60vh;
  background: radial-gradient(circle, rgba(32, 82, 254, 0.08) 0%, rgba(11, 14, 20, 0) 70%);
  pointer-events: none;
  z-index: 0;
  transition: opacity var(--transition-smooth);
}

html[data-theme="light"] body::before {
  background: radial-gradient(circle, rgba(32, 82, 254, 0.05) 0%, rgba(244, 246, 249, 0) 70%);
}

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

button, input, textarea, select {
  font: inherit;
  color: inherit;
  max-width: 100%;
}

input, select, textarea {
  background-color: var(--color-surface-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-line);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

button, a, input, [role="button"] {
  touch-action: manipulation;
}

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

::selection {
  background-color: var(--color-accent);
  color: var(--color-accent-text);
}

/* --------------------------------------------------------------------------
   Layout Containers
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
  position: relative;
  z-index: 1;
}

.container--wide {
  max-width: var(--container-wide);
}

.section {
  padding-block: var(--space-6);
  position: relative;
}

.section-head {
  margin-bottom: var(--space-4);
  max-width: 800px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-line-accent);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-2);
  line-height: 1.2;
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-h2);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

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

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-line);
  transition: var(--transition-smooth);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 72px;
}

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

.site-brand img {
  height: 48px;
  width: auto;
  max-width: 220px;
}

.site-header__controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* Location Selector */
.location-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

.location-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-success);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

/* Language Switcher */
.lang-toggle {
  display: inline-flex;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  padding: 3px;
  cursor: pointer;
  flex-shrink: 0;
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-btn.active {
  background: var(--color-accent);
  color: #FFFFFF;
}

/* Theme Toggle Button (Light / Dark) */
.theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  cursor: pointer;
  transition: var(--transition-fast);
  padding: 0;
  flex-shrink: 0;
}

.theme-btn * {
  pointer-events: none;
}

.theme-btn:hover {
  color: var(--color-accent);
  border-color: var(--color-line-hover);
  background: var(--color-surface-hover);
  transform: translateY(-1px);
}

.theme-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
}

/* Default / Dark theme: show Sun icon to switch to light */
.theme-icon--dark {
  display: none !important;
}
.theme-icon--light {
  display: inline-flex !important;
}

/* Light theme: show Moon icon to switch to dark */
html[data-theme="light"] .theme-icon--light,
html.theme-light .theme-icon--light,
body.theme-light .theme-icon--light {
  display: none !important;
}
html[data-theme="light"] .theme-icon--dark,
html.theme-light .theme-icon--dark,
body.theme-light .theme-icon--dark {
  display: inline-flex !important;
}

/* Light theme component surface refinements */
html[data-theme="light"] .service-item,
html.theme-light .service-item,
body.theme-light .service-item {
  background: rgba(15, 23, 42, 0.02);
}

html[data-theme="light"] .service-item:hover,
html.theme-light .service-item:hover,
body.theme-light .service-item:hover {
  background: rgba(32, 82, 254, 0.06);
  border-color: var(--color-line);
}

html[data-theme="light"] .service-item.highlighted,
html.theme-light .service-item.highlighted,
body.theme-light .service-item.highlighted {
  background: rgba(32, 82, 254, 0.12);
  border-color: var(--color-accent);
}

html[data-theme="light"] .magnet-card,
html.theme-light .magnet-card,
body.theme-light .magnet-card {
  background: linear-gradient(135deg, #FFFFFF 0%, #EEF2FF 100%) !important;
  border-color: rgba(32, 82, 254, 0.25) !important;
}

html[data-theme="light"] .dept-card,
html.theme-light .dept-card,
body.theme-light .dept-card,
html[data-theme="light"] .track-card,
html.theme-light .track-card,
body.theme-light .track-card,
html[data-theme="light"] .stat-card,
html.theme-light .stat-card,
body.theme-light .stat-card,
html[data-theme="light"] .modal-window,
html.theme-light .modal-window,
body.theme-light .modal-window {
  background: #FFFFFF !important;
  border-color: rgba(15, 23, 42, 0.1) !important;
}

/* Action Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: var(--control-height);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-smooth);
  text-align: center;
  max-width: 100%;
}

.btn--primary {
  background: var(--color-accent);
  color: #FFFFFF;
  box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 26px rgba(32, 82, 254, 0.5);
}

.btn--secondary {
  background: var(--color-surface-elevated);
  color: var(--color-text);
  border-color: var(--color-line);
}

.btn--secondary:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-line-hover);
  transform: translateY(-1px);
}

.btn--whatsapp {
  background: #25D366;
  color: #FFFFFF;
}

.btn--whatsapp:hover {
  background: #20BA5A;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
}

.btn--small {
  min-height: var(--control-height-small);
  padding: 8px 16px;
  font-size: var(--text-xs);
}

/* --------------------------------------------------------------------------
   Hero Block: Bento Grid Quick-Track
   -------------------------------------------------------------------------- */
.hero-bento {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.hero-main {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-main::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(32, 82, 254, 0.18), transparent 60%);
  pointer-events: none;
}

.hero-main__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
  mix-blend-mode: luminosity;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

html[data-theme="light"] .hero-main__bg {
  opacity: 0.12;
  mix-blend-mode: multiply;
}

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

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--text-h1);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.hero-title .text-gradient {
  background: linear-gradient(135deg, var(--color-text) 35%, #2052FE 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: var(--space-4);
  max-width: 580px;
}

.hero-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-line);
}

.meta-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-small);
  color: var(--color-text);
  background: var(--color-surface-hover);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-line);
}

/* Quick-Track Side Cards */
.hero-tracks {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.track-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  transition: var(--transition-smooth);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-card);
}

.track-card:hover {
  border-color: var(--color-line-accent);
  transform: translateY(-2px);
  background: var(--color-surface-elevated);
  box-shadow: var(--shadow-card-hover);
}

.track-card--accent {
  background: linear-gradient(145deg, #1A3FB8 0%, #2052FE 100%);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 30px rgba(32, 82, 254, 0.3);
}

.track-card--accent:hover {
  background: linear-gradient(145deg, #1737A3 0%, #1742DE 100%);
  box-shadow: 0 10px 36px rgba(32, 82, 254, 0.45);
}

.track-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-1);
}

.track-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  opacity: 0.6;
}

.track-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.track-card--accent .track-badge {
  background: rgba(255, 255, 255, 0.18);
  color: #FFFFFF;
}

.track-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-text);
}

.track-card--accent .track-title {
  color: #FFFFFF;
}

.track-desc {
  font-size: var(--text-small);
  color: var(--color-muted);
  line-height: 1.45;
  margin-bottom: var(--space-2);
}

.track-card--accent .track-desc {
  color: rgba(255, 255, 255, 0.85);
}

.track-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  padding-top: 10px;
  border-top: 1px solid var(--color-line);
}

.track-card--accent .track-cta {
  color: #FFFFFF;
  border-top-color: rgba(255, 255, 255, 0.15);
}

/* --------------------------------------------------------------------------
   Trust Anchors (Authority Bias)
   -------------------------------------------------------------------------- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.trust-item {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  text-align: left;
}

.trust-item__num {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 8px;
}

.trust-item__title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.trust-item__desc {
  font-size: var(--text-small);
  color: var(--color-muted);
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   Central Matrix: 6 Departments & 35+ Services
   -------------------------------------------------------------------------- */
.matrix-controls {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: var(--space-2);
  margin-bottom: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.matrix-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-btn {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-line);
  color: var(--color-muted);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: var(--text-small);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

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

.matrix-search-box {
  position: relative;
  width: 100%;
}

.matrix-search-input {
  width: 100%;
  min-height: 48px;
  background: var(--color-surface-elevated);
  border: 1.5px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 10px 16px 10px 44px;
  color: var(--color-text);
  font-size: var(--text-small);
  transition: var(--transition-smooth);
}

.matrix-search-input:focus {
  border-color: var(--color-accent);
  background: var(--color-surface-hover);
  box-shadow: 0 0 16px rgba(32, 82, 254, 0.25);
}

.matrix-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--color-muted);
  pointer-events: none;
}

/* Fallback Banner for Search */
.search-fallback {
  background: var(--color-surface);
  border: 1.5px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  box-shadow: var(--shadow-card);
  animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.search-fallback__content {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.search-fallback__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-line-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.search-fallback__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.search-fallback__title span#queryEcho,
.search-fallback__title span#queryEchoEn {
  color: var(--color-accent);
}

.search-fallback__desc {
  font-size: var(--text-small);
  color: var(--color-muted);
  line-height: 1.45;
  max-width: 600px;
}

.search-fallback__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
}

/* Service Matrix Grid */
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.dept-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  position: relative;
  box-shadow: var(--shadow-card);
}

.dept-card:hover {
  border-color: var(--color-line-accent);
  box-shadow: var(--shadow-card-hover);
}

.dept-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}

.dept-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

.dept-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.dept-desc {
  font-size: var(--text-small);
  color: var(--color-muted);
  line-height: 1.45;
  margin-bottom: var(--space-3);
}

/* Service Sub-items list with checkboxes */
.dept-services {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: var(--space-3);
  max-height: 380px;
  overflow-y: auto;
  padding-right: 6px;
}

.dept-services::-webkit-scrollbar {
  width: 4px;
}
.dept-services::-webkit-scrollbar-track {
  background: transparent;
}
.dept-services::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

.service-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
}

.service-item:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--color-line);
}

.service-item.highlighted {
  background: rgba(32, 82, 254, 0.18);
  border-color: var(--color-accent);
}

.service-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--color-muted);
  border-radius: 4px;
  margin-top: 3px;
  flex-shrink: 0;
  cursor: pointer;
  position: relative;
  transition: var(--transition-fast);
}

.service-checkbox:checked {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.service-checkbox:checked::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 5px;
  width: 4px;
  height: 8px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.service-text {
  font-size: var(--text-small);
  line-height: 1.35;
  color: var(--color-text);
  width: 100%;
}

.service-title {
  display: block;
  font-weight: 500;
  color: var(--color-text);
}

.service-spec {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-dim);
  font-family: var(--font-mono);
  margin-top: 2px;
}

.dept-footer {
  margin-top: auto;
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-line);
}

/* Floating Selected Services Bar */
.floating-bar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  background: var(--color-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-accent);
  box-shadow: var(--shadow-card-hover), 0 0 20px var(--color-accent-subtle);
  border-radius: var(--radius-pill);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  z-index: 999;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease;
  opacity: 0;
  pointer-events: none;
  max-width: calc(100vw - 32px);
}

.floating-bar.active {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.floating-bar__info {
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

/* Light Industrial Panel */
.industrial-light-panel {
  background: var(--color-surface-light);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  color: var(--color-text-dark);
  margin-top: var(--space-4);
  box-shadow: var(--shadow-card);
}

.industrial-light-panel .panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--color-line-dark);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-3);
  flex-wrap: wrap;
  gap: 8px;
}

.industrial-light-panel h3 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text-dark);
}

.spec-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
}

.spec-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--color-surface-light-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-line-dark);
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--color-text-dark);
  gap: 8px;
}

.spec-item span:first-child {
  font-family: var(--font-mono);
  color: var(--color-accent);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Before / After Renovation Slider
   -------------------------------------------------------------------------- */
.renovation-block {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  overflow: hidden;
}

.slider-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  cursor: ew-resize;
  border: 1px solid var(--color-line);
  max-width: 100%;
}

.slider-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
}

.slider-img--after {
  z-index: 1;
}

.slider-img--before {
  z-index: 2;
  clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
  transition: clip-path 0.04s linear;
}

.slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  background: #FFFFFF;
  z-index: 10;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.7);
  transform: translateX(-50%);
  pointer-events: none;
}

.slider-handle__btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  color: #FFFFFF;
  border: 3px solid #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
}

.slider-badge {
  position: absolute;
  top: 16px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  z-index: 5;
  backdrop-filter: blur(10px);
}

.slider-badge--before {
  left: 16px;
  background: rgba(0, 0, 0, 0.7);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.slider-badge--after {
  right: 16px;
  background: rgba(32, 82, 254, 0.85);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* --------------------------------------------------------------------------
   Engineering Audit & Thermal Diagnostic Block
   -------------------------------------------------------------------------- */
.audit-bento {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.audit-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.audit-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-line);
  aspect-ratio: 4 / 3;
}

.audit-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.audit-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-block: var(--space-3);
}

.audit-point {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.audit-point__icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   Subscription Plans: Grounds & Pool Care
   -------------------------------------------------------------------------- */
.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.plan-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.plan-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-line-accent);
}

.plan-card--featured {
  border-color: var(--color-accent);
  background: linear-gradient(180deg, rgba(32, 82, 254, 0.12) 0%, var(--color-surface) 100%);
  position: relative;
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.plan-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: 4px;
}

.plan-freq {
  font-size: var(--text-small);
  color: var(--color-muted);
  margin-bottom: var(--space-3);
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: var(--space-4);
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--text-small);
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Interactive Quiz Calculator
   -------------------------------------------------------------------------- */
.quiz-box {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  margin-top: var(--space-3);
  position: relative;
}

.quiz-steps {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-4);
}

.quiz-step-bar {
  flex: 1;
  height: 4px;
  background: var(--color-line);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}

.quiz-step-bar.active {
  background: var(--color-accent);
}

.quiz-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.quiz-opt {
  background: var(--color-surface-elevated);
  border: 1.5px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  cursor: pointer;
  text-align: center;
  transition: var(--transition-fast);
}

.quiz-opt:hover {
  border-color: var(--color-line-accent);
  background: var(--color-surface-hover);
}

.quiz-opt.selected {
  border-color: var(--color-accent);
  background: rgba(32, 82, 254, 0.12);
  box-shadow: 0 0 16px rgba(32, 82, 254, 0.2);
}

.quiz-result {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-line-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Lead Magnet (B2B Catalog PDF)
   -------------------------------------------------------------------------- */
.magnet-card {
  background: linear-gradient(135deg, #121622 0%, #17244D 100%);
  border: 1px solid rgba(32, 82, 254, 0.4);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.4);
}

html[data-theme="light"] .magnet-card {
  background: linear-gradient(135deg, #0E246A 0%, #2052FE 100%);
  border-color: rgba(32, 82, 254, 0.5);
  box-shadow: 0 16px 40px rgba(32, 82, 254, 0.2);
}

.magnet-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.magnet-input {
  min-height: 48px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 10px 18px;
  color: #FFFFFF;
  min-width: 240px;
}

.magnet-input:focus {
  border-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Footer & Sitemap
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-footer-bg);
  border-top: 1px solid var(--color-line);
  padding-block: var(--space-6) var(--space-4);
}

.footer-sitemap {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  font-size: var(--text-xs);
  color: var(--color-muted);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-line);
  font-size: var(--text-xs);
  color: var(--color-dim);
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* --------------------------------------------------------------------------
   Modal Dialog
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
}

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

.modal-window {
  background: var(--color-surface);
  border: 1px solid var(--color-line-accent);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  max-width: 540px;
  width: 100%;
  box-shadow: var(--shadow-card-hover);
  position: relative;
  color: var(--color-text);
}

.modal-window h3,
.modal-window [id*="Heading"] {
  color: var(--color-text) !important;
}

.modal-window input,
.modal-window textarea,
.modal-window select {
  background: var(--color-surface-elevated) !important;
  color: var(--color-text) !important;
  border: 1px solid var(--color-line) !important;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: transparent;
  border: none;
  color: var(--color-muted);
  cursor: pointer;
  font-size: 24px;
}

/* --------------------------------------------------------------------------
   COMPREHENSIVE RESPONSIVE MEDIA QUERIES (NO LAYOUT OVERFLOW)
   -------------------------------------------------------------------------- */
@media (max-width: 1100px) {
  .hero-bento {
    grid-template-columns: 1fr;
  }
  .matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-sitemap {
    grid-template-columns: repeat(3, 1fr);
  }
  .spec-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Tablet & Mobile (<= 768px) */
@media (max-width: 768px) {
  :root {
    --text-h1: clamp(28px, 7vw, 44px);
    --text-h2: clamp(24px, 5.5vw, 32px);
  }

  .container {
    padding-inline: 16px;
  }

  .section {
    padding-block: var(--space-4);
  }

  /* Header on Mobile */
  .site-header__inner {
    min-height: 60px;
  }

  .site-brand img {
    height: 38px;
    max-width: 150px;
  }

  .location-badge {
    display: none;
  }

  .site-header .btn--secondary {
    display: none; /* Hide secondary button to give space to logo and WhatsApp */
  }

  .site-header__controls {
    gap: 8px;
  }

  /* Hero on Mobile */
  .hero-main {
    padding: 24px 18px;
    border-radius: var(--radius-lg);
  }

  .hero-subtitle {
    font-size: 15px;
    margin-bottom: 20px;
  }

  .hero-meta-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .meta-pill {
    font-size: 12px;
    padding: 5px 12px;
  }

  .track-card {
    padding: 20px 16px;
    border-radius: var(--radius-md);
  }

  /* Trust Grid */
  .trust-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .trust-item {
    padding: 16px 14px;
  }

  .trust-item__num {
    font-size: 26px;
    margin-bottom: 4px;
  }

  .trust-item__title {
    font-size: 14px;
  }

  .trust-item__desc {
    font-size: 12px;
  }

  /* Service Matrix */
  .matrix-controls {
    padding: 14px 12px;
    border-radius: var(--radius-md);
  }

  .matrix-filters {
    gap: 6px;
  }

  .filter-btn {
    padding: 6px 12px;
    font-size: 12px;
  }

  .search-fallback {
    flex-direction: column;
    align-items: stretch;
    padding: 18px 16px;
    gap: 14px;
  }

  .search-fallback__content {
    flex-direction: column;
    gap: 10px;
  }

  .search-fallback__actions {
    width: 100%;
  }

  .search-fallback__actions .btn {
    width: 100%;
  }

  .matrix-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .dept-card {
    padding: 22px 16px;
    border-radius: var(--radius-lg);
  }

  .industrial-light-panel {
    padding: 20px 16px;
    border-radius: var(--radius-lg);
  }

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

  /* Renovation Slider */
  .renovation-block {
    padding: 16px;
    border-radius: var(--radius-lg);
  }

  .slider-badge {
    font-size: 9px;
    padding: 4px 8px;
    top: 10px;
  }

  .slider-badge--before { left: 10px; }
  .slider-badge--after { right: 10px; }

  .slider-handle__btn {
    width: 36px;
    height: 36px;
  }

  /* Subscription Plans */
  .plans-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .plan-card {
    padding: 22px 18px;
    border-radius: var(--radius-lg);
  }

  /* Audit */
  .audit-bento {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .audit-card {
    padding: 20px 16px;
    border-radius: var(--radius-lg);
  }

  /* Quiz */
  .quiz-box {
    padding: 20px 16px;
    border-radius: var(--radius-lg);
  }

  .quiz-options {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .quiz-opt {
    padding: 12px;
    font-size: 14px;
  }

  .quiz-result {
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 14px;
  }

  .quiz-result .btn {
    width: 100%;
  }

  /* Lead Magnet */
  .magnet-card {
    flex-direction: column;
    align-items: stretch;
    padding: 22px 16px;
    border-radius: var(--radius-lg);
    gap: 18px;
  }

  .magnet-form {
    flex-direction: column;
    width: 100%;
  }

  .magnet-input {
    width: 100%;
    min-width: 0;
  }

  .magnet-form .btn {
    width: 100%;
  }

  /* Floating Bar on Mobile */
  .floating-bar {
    width: calc(100% - 24px);
    left: 12px;
    right: 12px;
    transform: translateY(140px);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .floating-bar.active {
    transform: translateY(0);
  }

  .floating-bar .btn {
    width: 100%;
    white-space: normal;
    font-size: 13px;
    padding: 10px;
    min-height: 42px;
  }

  /* Footer */
  .footer-sitemap {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

/* Small Smartphone (<= 480px) */
@media (max-width: 480px) {
  .site-brand img {
    height: 32px;
    max-width: 130px;
  }

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

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

  .modal-window {
    padding: 24px 16px;
    border-radius: var(--radius-lg);
  }
}

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