/* ==========================================================================
   KD SONDAJ — Ultra Modern Bright Industrial Design System
   Pristine Architectural White / Slate + Kinetic Safety Orange + Aquifer Blue
   High Contrast · Fast Loading · Optimized · Fully Responsive
   ========================================================================== */

:root {
  /* Color Palette (Bright / Light Architectural Palette) */
  --bg-deep: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FFFFFF;
  --bg-card-solid: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.92);
  --bg-subtle: #F1F5F9;
  --bg-muted: #E2E8F0;

  /* Brand Kinetic Orange (Safety & Power) */
  --signal: #EA580C;
  --signal-hover: #C2410C;
  --signal-dark: #9A3412;
  --signal-subtle: #FFF7ED;
  --signal-glow: rgba(234, 88, 12, 0.18);
  --signal-ink: #FFFFFF;

  /* Aquifer Blue & Technical Accents */
  --cyan: #0284C7;
  --cyan-hover: #0369A1;
  --cyan-subtle: #F0F9FF;
  --cyan-glow: rgba(2, 132, 199, 0.16);
  --emerald: #059669;
  --emerald-subtle: #ECFDF5;

  /* Typography / Text Colors (High Contrast on White) */
  --text-main: #0F172A;
  --text-soft: #334155;
  --text-muted: #64748B;
  --text-dim: #94A3B8;

  /* Borders & Dividers */
  --border: #E2E8F0;
  --border-light: #CBD5E1;
  --border-active: #EA580C;
  --line: #E2E8F0;

  /* Elevation Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 2px 6px -1px rgba(15, 23, 42, 0.06), 0 1px 4px -1px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 6px 20px -3px rgba(15, 23, 42, 0.08), 0 2px 8px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.1), 0 4px 14px -2px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 8px 24px var(--signal-glow);

  /* Layout & Sizing */
  --max: 1220px;
  --header-h: 4.85rem;
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 160ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 240ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Core Typography */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  color-scheme: light;
  background-color: var(--bg-deep);
}

body {
  margin: 0;
  background-color: var(--bg-deep);
  color: var(--text-main);
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 1.02rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* Subtle Architectural Grid Texture */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(15, 23, 42, 0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  z-index: -1;
}

/* Arabic Typography Support */
:lang(ar) body,
html[lang="ar"] body,
html[lang="ar"] {
  font-family: "IBM Plex Sans Arabic", "Plus Jakarta Sans", Tahoma, sans-serif;
}

html[dir="rtl"] {
  text-align: start;
}

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

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

a:hover {
  color: var(--signal);
}

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

/* Container */
.wrap {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

/* Headings */
h1, h2, h3, h4, .brand-title {
  font-family: "Outfit", "Plus Jakarta Sans", sans-serif;
  font-weight: 750;
  color: var(--text-main);
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin: 0 0 1rem;
}

h1 {
  font-size: clamp(2.3rem, 5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.12;
}

h2 {
  font-size: clamp(1.75rem, 3.2vw, 2.4rem);
  font-weight: 750;
  letter-spacing: -0.025em;
}

h3 {
  font-size: clamp(1.2rem, 1.8vw, 1.45rem);
  font-weight: 700;
}

p {
  margin: 0 0 1.25rem;
  color: var(--text-soft);
}

.mono, .num, .spec dt, .telemetry, .badge, th {
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
}

/* Skip Link */
.skip {
  position: absolute;
  inset-inline-start: 1rem;
  top: -4rem;
  background: var(--signal);
  color: #FFFFFF;
  font-weight: 700;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-xs);
  z-index: 100;
  transition: top var(--transition-fast);
}

.skip:focus {
  top: 1rem;
}

/* ==========================================================================
   Navigation Bar (Bright Glassmorphic Sticky Header)
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
  transition: background var(--transition-normal), box-shadow var(--transition-normal);
}

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

/* Brand Logo */
.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: #0F172A;
  border: 1px solid rgba(15, 23, 42, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.brand:hover .brand-icon {
  transform: translateY(-2px) scale(1.04);
  box-shadow: var(--shadow-md);
}

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

.brand-title {
  font-size: 1.25rem;
  font-weight: 850;
  letter-spacing: 0.06em;
  margin: 0;
  line-height: 1;
  color: var(--text-main);
}

.brand-sub {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  font-weight: 700;
  margin-top: 0.3rem;
}

/* Primary Nav Links */
.nav-center {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-soft);
  padding: 0.55rem 0.9rem;
  border-radius: var(--radius-full);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-main);
  background: rgba(15, 23, 42, 0.05);
}

.nav-link[aria-current="page"] {
  color: var(--signal);
  background: var(--signal-subtle);
  border: 1px solid rgba(234, 88, 12, 0.25);
}

/* Dropdown Menu in Desktop Navigation */
.nav-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-dropdown-trigger::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  margin-top: -3px;
  transition: transform var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-trigger::after {
  transform: rotate(-135deg);
  border-color: var(--signal);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  inset-inline-start: 0;
  min-width: 250px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.5rem 0;
  box-shadow: var(--shadow-lg);
  display: none;
  z-index: 100;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.nav-dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-soft);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.nav-dropdown-item:hover {
  background: var(--signal-subtle);
  color: var(--signal);
  padding-inline-start: 1.45rem;
}

.nav-dropdown-item small {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: var(--cyan);
}

/* Header Action Controls */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Language Switcher Segmented Control */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  background: #F1F5F9;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 3px;
  gap: 2px;
}

.lang-btn {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  color: var(--text-main);
}

.lang-btn[aria-current="page"] {
  background: #FFFFFF;
  color: var(--signal);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.1);
}

/* Mobile Menu Button */
.menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: #F1F5F9;
  border: 1px solid var(--border);
  color: var(--text-main);
  font-size: 1.35rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.menu-btn:hover {
  background: var(--border);
}

/* Mobile Drawer Panel */
.mobile-panel {
  display: none;
  background: #FFFFFF;
  border-top: 1px solid var(--border);
  padding: 1.25rem 0 1.75rem;
  box-shadow: var(--shadow-lg);
}

.mobile-panel.is-open {
  display: block;
  animation: slideDown 250ms ease-out forwards;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-panel-nav {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.mobile-panel-nav a {
  padding: 0.75rem 1rem;
  font-size: 1.02rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  border-bottom: 1px solid #F1F5F9;
}

.mobile-panel-nav a:hover,
.mobile-panel-nav a[aria-current="page"] {
  background: var(--signal-subtle);
  color: var(--signal);
}

.mobile-nav-subgroup {
  padding-inline-start: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
}

.mobile-nav-subgroup a {
  font-size: 0.92rem !important;
  color: var(--text-muted) !important;
  border-bottom: none !important;
  padding: 0.4rem 0.75rem !important;
}

.mobile-nav-subgroup a:hover {
  color: var(--signal) !important;
}

.mobile-panel-cta {
  margin-top: 1rem;
  padding: 0 1rem;
}

/* ==========================================================================
   Buttons & Interactive Elements
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: "Outfit", sans-serif;
  font-weight: 650;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  padding: 0.75rem 1.45rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-signal {
  background: var(--signal);
  color: #FFFFFF;
  box-shadow: 0 4px 14px var(--signal-glow);
}

.btn-signal:hover {
  background: var(--signal-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(234, 88, 12, 0.32);
}

.btn-ghost, .btn-glass {
  background: #FFFFFF;
  color: var(--text-main);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}

.btn-ghost:hover, .btn-glass:hover {
  background: #F8FAFC;
  color: var(--signal);
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-wa {
  background: #16A34A;
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(22, 163, 74, 0.28);
}

.btn-wa:hover {
  background: #15803D;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(22, 163, 74, 0.4);
}

/* Floating WhatsApp Button */
.wa-float {
  position: fixed;
  inset-inline-end: 1.5rem;
  bottom: 1.5rem;
  z-index: 60;
  width: 3.75rem;
  height: 3.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #16A34A;
  color: #FFFFFF;
  border-radius: var(--radius-full);
  box-shadow: 0 8px 25px rgba(22, 163, 74, 0.4);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.wa-float::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: var(--radius-full);
  border: 2px solid #16A34A;
  opacity: 0.6;
  animation: waPulse 2.4s infinite;
}

@keyframes waPulse {
  0% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.22); opacity: 0; }
  100% { transform: scale(1.22); opacity: 0; }
}

.wa-float:hover {
  transform: scale(1.08) translateY(-3px);
  box-shadow: 0 12px 32px rgba(22, 163, 74, 0.55);
}

/* ==========================================================================
   Bright Hero Section
   ========================================================================== */

.hero {
  position: relative;
  padding: 4rem 0 5rem;
  background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
  border-bottom: 1px solid var(--border);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.95fr);
  gap: 3.5rem;
  align-items: center;
}

/* Telemetry Badge Pill */
.telemetry-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 0.4rem 1.1rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 8px var(--signal);
  animation: pulseLight 1.8s infinite;
}

@keyframes pulseLight {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.7; }
}

.telemetry-pill .pill-tag {
  background: var(--signal);
  color: #FFFFFF;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.68rem;
}

.hero h1 {
  margin-bottom: 1.25rem;
}

.hero h1 .highlight-orange {
  color: var(--signal);
}

.hero .lead {
  font-size: 1.18rem;
  line-height: 1.6;
  color: var(--text-soft);
  max-width: 48ch;
  margin-bottom: 1.25rem;
}

.hero-proof-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  border-inline-start: 3px solid var(--signal);
  padding-inline-start: 0.85rem;
  margin-bottom: 2rem;
  max-width: 48ch;
}

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

/* ==========================================================================
   Hero Visual Card & Subterranean Telemetry (Bright Mode)
   ========================================================================== */

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

.hero-img-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  position: relative;
  background: #E2E8F0;
}

.hero-img-card img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  object-position: center 30%;
  transition: transform 600ms ease;
}

.hero-img-card:hover img {
  transform: scale(1.03);
}

.hero-depth-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
  position: relative;
}

.card-header-telemetry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.85rem;
  margin-bottom: 1.25rem;
}

.card-header-telemetry span {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.card-header-telemetry .status-online {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--emerald);
  font-weight: 700;
}

.card-header-telemetry .status-online::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 6px var(--emerald);
}

/* Subterranean Depth Scale */
.depth-strata-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  margin-bottom: 1.5rem;
}

.depth-strata-list::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  inset-inline-start: 19px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--signal) 100%);
  opacity: 0.35;
}

.strata-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.65rem 0.9rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.strata-item:hover {
  background: #FFFFFF;
  border-color: var(--signal);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

html[dir="rtl"] .strata-item:hover {
  transform: translateX(-4px);
}

.strata-node {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 2px solid var(--signal);
  flex-shrink: 0;
  z-index: 1;
}

.strata-item.active .strata-node {
  background: var(--signal);
  box-shadow: 0 0 8px var(--signal);
}

.strata-depth {
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-main);
  min-width: 5.5rem;
}

.strata-label {
  font-size: 0.86rem;
  color: var(--text-soft);
}

/* Card Bottom Stats Grid */
.hero-card-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
}

.stat-chip {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
}

.stat-chip .val {
  font-family: "Outfit", sans-serif;
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--signal);
  line-height: 1.1;
  margin-bottom: 0.2rem;
}

.stat-chip .lbl {
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.25;
}

/* ==========================================================================
   Metrics & KPI Ribbon (Bright Mode)
   ========================================================================== */

.metrics-band {
  background: #FFFFFF;
  border-bottom: 1px solid var(--border);
  padding: 2.2rem 0;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.02);
}

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

.metric-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.5rem;
}

.metric-icon-box {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: var(--signal-subtle);
  border: 1px solid rgba(234, 88, 12, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--signal);
  flex-shrink: 0;
}

.metric-content {
  display: flex;
  flex-direction: column;
}

.metric-content .num {
  font-family: "Outfit", sans-serif;
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-weight: 850;
  color: var(--text-main);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.metric-content span {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-top: 0.15rem;
}

/* ==========================================================================
   Section Blocks & Layout Architecture
   ========================================================================== */

.block {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.section {
  display: grid;
  grid-template-columns: 10rem minmax(0, 1fr);
  gap: 3rem;
}

.section-sidebar {
  position: sticky;
  top: 6.5rem;
  height: max-content;
}

.section-index-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  background: var(--cyan-subtle);
  border: 1px solid rgba(2, 132, 199, 0.25);
  border-radius: var(--radius-full);
  padding: 0.35rem 0.85rem;
  margin-bottom: 0.85rem;
  font-weight: 700;
}

.section-kicker {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.section-head {
  margin-bottom: 2.2rem;
}

.section-head p {
  font-size: 1.12rem;
  max-width: 60ch;
  color: var(--text-soft);
}

/* ==========================================================================
   Modern Bright Cards & Grids
   ========================================================================== */

.cards {
  display: grid;
  gap: 1.4rem;
}

.cards.two, .cards.services {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cards.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--signal), var(--cyan));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card:hover {
  border-color: rgba(234, 88, 12, 0.45);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(234, 88, 12, 0.08);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: var(--signal-subtle);
  border: 1px solid rgba(234, 88, 12, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--signal);
  margin-bottom: 1.2rem;
}

.card h3 {
  font-size: 1.35rem;
  margin: 0 0 0.75rem;
  line-height: 1.25;
  color: var(--text-main);
}

.card p {
  font-size: 0.96rem;
  color: var(--text-soft);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.card .more {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: "Outfit", sans-serif;
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--signal);
  margin-top: auto;
  transition: gap var(--transition-fast);
}

.card:hover .more {
  gap: 0.7rem;
  color: var(--signal-hover);
}

/* ==========================================================================
   Equipment & Heavy Machinery Rig Cards (Bright Mode)
   ========================================================================== */

.rig-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.rig-card:hover {
  border-color: rgba(234, 88, 12, 0.45);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(234, 88, 12, 0.08);
}

.rig-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.1rem;
}

.rig-depth-badge {
  font-family: "Outfit", sans-serif;
  font-size: 1.65rem;
  font-weight: 850;
  color: var(--text-main);
  line-height: 1;
  letter-spacing: -0.02em;
}

.carrier-tag {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.carrier-tag.trailer {
  background: var(--cyan-subtle);
  color: var(--cyan);
  border: 1px solid rgba(2, 132, 199, 0.25);
}

.carrier-tag.truck {
  background: var(--signal-subtle);
  color: var(--signal);
  border: 1px solid rgba(234, 88, 12, 0.25);
}

/* Spec Grid inside Rig Cards */
.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  margin-bottom: 1rem;
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-item dt {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.spec-item dd {
  margin: 0.2rem 0 0;
  font-family: "Outfit", sans-serif;
  font-size: 1rem;
  font-weight: 750;
  color: var(--text-main);
}

.rig-features {
  font-size: 0.86rem;
  color: var(--text-soft);
  margin-bottom: 1.25rem;
}

.rig-features p {
  margin: 0.25rem 0;
}

.rig-inquire-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  width: 100%;
  padding: 0.6rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: "Outfit", sans-serif;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-main);
  transition: all var(--transition-fast);
  margin-top: auto;
}

.rig-card:hover .rig-inquire-btn {
  background: var(--signal);
  color: #FFFFFF;
  border-color: var(--signal);
}

/* Filter Bar for Rigs */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 2rem;
}

.filter-btn {
  background: #FFFFFF;
  border: 1px solid var(--border);
  color: var(--text-soft);
  padding: 0.5rem 1.15rem;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 650;
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-fast);
}

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

.filter-btn.active {
  background: var(--signal);
  color: #FFFFFF;
  border-color: var(--signal);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   Interactive Quote Calculator Widget (Bright Mode)
   ========================================================================== */

.calc-widget {
  background: #FFFFFF;
  border: 1px solid rgba(234, 88, 12, 0.35);
  border-radius: var(--radius-lg);
  padding: 2.4rem;
  box-shadow: var(--shadow-md), 0 0 30px rgba(234, 88, 12, 0.08);
  margin: 2.5rem 0;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: center;
}

.calc-options {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.calc-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cyan);
  font-weight: 700;
  margin-bottom: 0.5rem;
  display: block;
}

.calc-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.calc-pill {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  color: var(--text-soft);
  padding: 0.55rem 1.05rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 650;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.calc-pill:hover {
  border-color: var(--signal);
  color: var(--signal);
  background: #FFFFFF;
}

.calc-pill.selected {
  background: var(--signal-subtle);
  border-color: var(--signal);
  color: var(--signal);
  box-shadow: 0 1px 4px rgba(234, 88, 12, 0.12);
}

.calc-result-box {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.calc-result-rec {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  color: var(--emerald);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.calc-result-rig {
  font-family: "Outfit", sans-serif;
  font-size: 1.45rem;
  font-weight: 850;
  color: var(--text-main);
  line-height: 1.2;
}

.calc-result-desc {
  font-size: 0.92rem;
  color: var(--text-soft);
}

/* ==========================================================================
   Showcase Banners (Geothermal & Drill Bits)
   ========================================================================== */

.showcase-banner {
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  margin: 2rem 0;
}

.showcase-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.showcase-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2.2rem;
  background: linear-gradient(0deg, rgba(15, 23, 42, 0.95) 0%, rgba(15, 23, 42, 0.5) 60%, transparent 100%);
  color: #FFFFFF;
}

.showcase-content h3 {
  font-size: 1.8rem;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.showcase-content p {
  max-width: 50ch;
  color: #E2E8F0;
  margin-bottom: 1.25rem;
}

/* ==========================================================================
   Modern Technical Tables (Bright Mode)
   ========================================================================== */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #FFFFFF;
  margin: 1.75rem 0;
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
  text-align: start;
}

caption {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal);
  font-weight: 700;
  text-align: start;
  padding: 1.1rem 1.25rem 0.5rem;
}

th, td {
  padding: 0.9rem 1.15rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th {
  background: var(--bg-deep);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
}

tbody tr {
  transition: background var(--transition-fast);
}

tbody tr:hover {
  background: var(--signal-subtle);
}

tbody tr:last-child td {
  border-bottom: none;
}

td {
  color: var(--text-soft);
}

td:first-child {
  font-weight: 700;
  color: var(--text-main);
}

/* ==========================================================================
   References & FAQ Lists (Bright Mode)
   ========================================================================== */

.list-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem;
}

.ref-item {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.4rem 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.ref-item:hover {
  border-color: var(--signal);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.ref-badge {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--cyan-subtle);
  color: var(--cyan);
  border: 1px solid rgba(2, 132, 199, 0.25);
  border-radius: var(--radius-xs);
  padding: 0.2rem 0.5rem;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.ref-item p {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--text-main);
  font-weight: 550;
}

/* FAQ Accordion */
.faq {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.faq details {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-fast);
}

.faq details[open] {
  border-color: var(--signal);
  box-shadow: var(--shadow-sm);
}

.faq summary {
  cursor: pointer;
  font-family: "Outfit", sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-main);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  user-select: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  font-family: "JetBrains Mono", monospace;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--signal);
  transition: transform var(--transition-fast);
}

.faq details[open] summary::after {
  content: "−";
  transform: rotate(180deg);
}

.faq p {
  margin: 1rem 0 0;
  color: var(--text-soft);
  font-size: 0.98rem;
  line-height: 1.6;
}

/* ==========================================================================
   Page Headers (Subpages)
   ========================================================================== */

.page-hero {
  padding: 4rem 0 2.8rem;
  background: linear-gradient(180deg, #FFFFFF 0%, #F1F5F9 100%);
  border-bottom: 1px solid var(--border);
  position: relative;
}

.breadcrumbs {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.breadcrumbs a {
  color: var(--text-muted);
}

.breadcrumbs a:hover {
  color: var(--signal);
}

.note {
  background: var(--signal-subtle);
  border: 1px solid rgba(234, 88, 12, 0.3);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.4rem;
  color: var(--text-main);
  font-weight: 600;
  margin: 1.5rem 0;
}

/* ==========================================================================
   Contact Form & Contact Page (Bright Architectural Style)
   ========================================================================== */

.contact-section-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: start;
}

.contact-form-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
}

.contact-form-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--signal), var(--cyan));
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.form-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  background: #F8FAFC;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.1rem;
  font-family: inherit;
  font-size: 0.98rem;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.15);
  background: #FFFFFF;
}

.form-select option {
  background: #FFFFFF;
  color: var(--text-main);
}

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

.form-actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.form-success-banner {
  display: none;
  background: var(--emerald-subtle);
  border: 1px solid rgba(5, 150, 105, 0.35);
  color: var(--emerald);
  padding: 1.1rem 1.35rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.5;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-card-highlight {
  background: linear-gradient(135deg, var(--signal-subtle), #FFFFFF);
  border: 1px solid rgba(234, 88, 12, 0.3);
  border-radius: var(--radius-md);
  padding: 1.8rem;
}

/* ==========================================================================
   Micro-Animations & Dynamic Interactions (Sleek, Modern & Architectural)
   ========================================================================== */

/* Rotating Drill Bit / Telemetry Radar */
.spin-slow {
  animation: spinSlow 12s linear infinite;
  transform-origin: center;
}

@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Scroll Reveal Fade-In-Up Animation with Subtle Spring Easing */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 650ms cubic-bezier(0.16, 1, 0.3, 1), transform 650ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 120ms; }
.delay-2 { transition-delay: 240ms; }
.delay-3 { transition-delay: 360ms; }

/* Interactive Card Elevation & Modern Glass Tilt */
.card, .rig-card {
  transition: transform 380ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 380ms cubic-bezier(0.16, 1, 0.3, 1), border-color 380ms cubic-bezier(0.16, 1, 0.3, 1);
}

.card:hover, .rig-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 35px -10px rgba(15, 23, 42, 0.09), 0 0 0 1px rgba(234, 88, 12, 0.22);
  border-color: rgba(234, 88, 12, 0.35);
}

/* Machinery Image Smooth Zoom inside Showcase Cards */
.showcase-banner {
  transition: transform 400ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 400ms cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

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

.showcase-banner .showcase-img {
  transition: transform 800ms cubic-bezier(0.16, 1, 0.3, 1);
}

.showcase-banner:hover .showcase-img {
  transform: scale(1.035);
}

/* Button Luxury Light Beam Sweep Animation */
.btn-signal, .btn-wa {
  position: relative;
  overflow: hidden;
  transition: transform 250ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 250ms cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-signal::before, .btn-wa::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -75%;
  width: 50%;
  height: 200%;
  background: linear-gradient(
    60deg,
    rgba(255, 255, 255, 0) 20%,
    rgba(255, 255, 255, 0.35) 50%,
    rgba(255, 255, 255, 0) 80%
  );
  transform: rotate(25deg);
  transition: all 750ms cubic-bezier(0.19, 1, 0.22, 1);
  pointer-events: none;
}

.btn-signal:hover::before, .btn-wa:hover::before {
  left: 140%;
}

.btn-signal:hover, .btn-wa:hover {
  transform: translateY(-2px);
}

/* Hero Machinery Gentle Floating Animation */
.hero-visual-container {
  animation: heroFloat 6s ease-in-out infinite alternate;
}

@keyframes heroFloat {
  0% { transform: translateY(0); }
  100% { transform: translateY(-7px); }
}

/* Active Strata Indicator Pulse & Ambient Aura */
.strata-item.active .strata-node {
  background: var(--signal);
  box-shadow: 0 0 16px rgba(234, 88, 12, 0.8), 0 0 0 4px rgba(234, 88, 12, 0.2);
  animation: strataGlow 2.4s ease-in-out infinite alternate;
}

@keyframes strataGlow {
  0% { box-shadow: 0 0 8px rgba(234, 88, 12, 0.5), 0 0 0 2px rgba(234, 88, 12, 0.15); }
  100% { box-shadow: 0 0 20px rgba(234, 88, 12, 0.95), 0 0 0 6px rgba(234, 88, 12, 0.28); }
}

/* Subterranean Animated Depth Meter Bar with Liquid Gradient Shimmer */
.depth-meter-track {
  width: 100%;
  height: 9px;
  background: #E2E8F0;
  border-radius: var(--radius-full);
  position: relative;
  overflow: hidden;
  margin: 1.1rem 0;
}

.depth-meter-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #0284C7 0%, #38BDF8 35%, #EA580C 75%, #F97316 100%);
  background-size: 200% 100%;
  border-radius: var(--radius-full);
  position: relative;
  animation: depthMeterLiquid 4.5s ease-in-out infinite alternate;
}

@keyframes depthMeterLiquid {
  0% {
    transform: scaleX(0.32);
    transform-origin: left;
    background-position: 0% 50%;
  }
  100% {
    transform: scaleX(1);
    transform-origin: left;
    background-position: 100% 50%;
  }
}

/* Shimmer Light Reflection on Badges */
.shimmer-badge {
  position: relative;
  overflow: hidden;
}

.shimmer-badge::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.7), transparent);
  animation: shimmerAnim 4s infinite;
}

@keyframes shimmerAnim {
  0% { left: -100%; }
  35% { left: 140%; }
  100% { left: 140%; }
}

/* Telemetry Pulse Beacon */
.beacon-dot {
  width: 10px;
  height: 10px;
  background: var(--signal);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(234, 88, 12, 0.7);
  animation: beaconPulse 2.2s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

@keyframes beaconPulse {
  0% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(234, 88, 12, 0.7); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(234, 88, 12, 0); }
  100% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(234, 88, 12, 0); }
}

/* Floating WhatsApp Button with Radar Ripple & Smooth Hover */
.wa-float {
  position: fixed;
  bottom: 2.2rem;
  right: 2.2rem;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.42), 0 2px 6px rgba(0, 0, 0, 0.1);
  z-index: 999;
  text-decoration: none;
  transition: transform 320ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 320ms cubic-bezier(0.16, 1, 0.3, 1);
  animation: waFloatAnim 3.8s ease-in-out infinite;
}

.wa-float:hover {
  transform: translateY(-5px) scale(1.08);
  box-shadow: 0 16px 36px rgba(37, 211, 102, 0.58), 0 4px 12px rgba(0, 0, 0, 0.15);
}

.wa-float::before {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: rgba(37, 211, 102, 0.35);
  animation: waPulseRing 2.4s cubic-bezier(0.24, 0, 0.38, 1) infinite;
  z-index: -1;
}

@keyframes waFloatAnim {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

@keyframes waPulseRing {
  0% { transform: scale(0.85); opacity: 0.85; }
  70% { transform: scale(1.35); opacity: 0; }
  100% { transform: scale(1.4); opacity: 0; }
}

/* ==========================================================================
   Bottom CTA Banner (Bright & High Impact)
   ========================================================================== */

.close-cta {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  color: #FFFFFF;
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.close-cta::before {
  content: "";
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(234, 88, 12, 0.25) 0%, transparent 65%);
  pointer-events: none;
}

.close-cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 65ch;
  margin: 0 auto;
}

.close-cta h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: #FFFFFF;
  margin-bottom: 1rem;
}

.close-cta p {
  font-size: 1.15rem;
  color: #CBD5E1;
  margin-bottom: 2rem;
}

.close-cta .cta-row {
  justify-content: center;
}

/* ==========================================================================
   Footer (Clean Bright Finish)
   ========================================================================== */

.site-footer {
  background: #FFFFFF;
  border-top: 1px solid var(--border);
  padding: 4.5rem 0 3rem;
  font-size: 0.94rem;
}

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

.footer-col h2 {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-col p {
  color: var(--text-soft);
  line-height: 1.7;
}

.footer-col a {
  color: var(--text-soft);
}

.footer-col a:hover {
  color: var(--signal);
}

.legal {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.84rem;
}

/* Back to Top Button */
.back-to-top {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.4rem 0.95rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.back-to-top:hover {
  background: var(--signal);
  color: #FFFFFF;
  border-color: var(--signal);
}

/* 404 Page */
.not-found {
  min-height: 75vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 5rem 0;
}

.not-found .num {
  font-size: clamp(5rem, 15vw, 9rem);
  font-weight: 900;
  line-height: 1;
  color: var(--signal);
  margin-bottom: 1rem;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 1080px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .contact-section-grid {
    grid-template-columns: 1fr;
  }

  .cards.four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 900px) {
  .section {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .section-sidebar {
    position: static;
  }

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

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

  .nav-center, .header-cta {
    display: none;
  }

  .menu-btn {
    display: inline-flex;
  }

  .cards.three {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .cards.two, .cards.services, .cards.four {
    grid-template-columns: 1fr;
  }

  .form-grid-two {
    grid-template-columns: 1fr;
  }

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

  .cta-row {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-row .btn {
    width: 100%;
  }

  .hero {
    padding: 3rem 0 3.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ==========================================================================
   Product Deep Pages & Technical Engineering Guides System
   ========================================================================== */
.product-detail-layout {
  display: grid;
  grid-template-columns: 1.7fr 1.15fr;
  gap: 2.75rem;
  align-items: start;
}

@media (max-width: 980px) {
  .product-detail-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.product-gallery-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
  position: relative;
}

.product-gallery-card img {
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: cover;
  display: block;
}

.product-specs-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 1.5rem 0 2rem;
  background: var(--bg-surface);
  box-shadow: var(--shadow-xs);
}

.product-specs-table th, .product-specs-table td {
  padding: 0.85rem 1.2rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

[dir="rtl"] .product-specs-table th, [dir="rtl"] .product-specs-table td {
  text-align: right;
}

.product-specs-table th {
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.product-specs-table tr:nth-child(even) td {
  background: rgba(248, 250, 252, 0.7);
}

.product-specs-table td:first-child {
  font-weight: 600;
  color: var(--text-main);
  width: 44%;
}

.product-specs-table td:last-child {
  font-family: "JetBrains Mono", monospace;
  color: var(--signal-dark);
  font-weight: 600;
}

.rfq-sticky-card {
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-md);
  transition: border-color var(--transition-normal);
}

.rfq-sticky-card:hover {
  border-color: var(--signal);
}

.rfq-price-tag {
  font-family: "Outfit", sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--signal);
  margin-bottom: 0.5rem;
}

.rfq-feature-list {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 1.5rem;
}

.rfq-feature-list li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.92rem;
  color: var(--text-soft);
  margin-bottom: 0.6rem;
}

.rfq-feature-list li svg {
  color: var(--emerald);
  flex-shrink: 0;
}

.geo-qa-box {
  background: var(--cyan-subtle);
  border: 1px solid rgba(2, 132, 199, 0.2);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin: 2.25rem 0;
}

.geo-qa-box h3 {
  color: var(--cyan-hover);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.15rem;
  margin-top: 0;
}

.geo-qa-item {
  background: var(--bg-surface);
  border: 1px solid rgba(2, 132, 199, 0.15);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.25rem;
  margin-top: 1rem;
}

.geo-qa-item strong {
  display: block;
  color: var(--text-main);
  margin-bottom: 0.4rem;
  font-size: 0.98rem;
}

.geo-qa-item p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* Guide Styles */
.guide-article-wrap {
  max-width: 860px;
  margin: 0 auto;
}

.guide-meta-bar {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.guide-prose h2 {
  font-size: 1.6rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-main);
  position: relative;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.guide-prose p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-soft);
  margin-bottom: 1.25rem;
}

.guide-prose blockquote {
  border-left: 4px solid var(--signal);
  background: var(--signal-subtle);
  padding: 1.1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-main);
}

[dir="rtl"] .guide-prose blockquote {
  border-left: none;
  border-right: 4px solid var(--signal);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.guide-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
}

.guide-card:hover {
  transform: translateY(-3px);
  border-color: var(--signal);
  box-shadow: var(--shadow-md);
}