/* ==========================================================================
   AMRS LLC (Agile Marketing and Research Solutions LLC)
   Theme: Low-Contrast Sophisticated Corporate Palette
   Primary URL: www.amrs-llc.com | info@amrs-llc.com
   ========================================================================== */

:root {
  /* Harmonious, Low-Contrast Corporate Color Palette */
  --bg-body: #f8f9fa;
  --bg-surface: #ffffff;
  --bg-surface-subtle: #f1f3f5;
  --bg-surface-muted: #e9ecef;
  
  --bg-dark: #111a24;
  --bg-dark-surface: #182432;
  --bg-dark-card: #1f2f40;
  
  /* Text Colors */
  --text-main: #1e293b;
  --text-muted: #576574;
  --text-light: #8395a7;
  --text-inverse: #f8f9fa;
  --text-inverse-muted: #94a3b8;

  /* Refined Low-Contrast Accents */
  --accent-gold: #b89358;
  --accent-gold-hover: #a58147;
  --accent-gold-subtle: #fbf7ee;
  --accent-gold-border: #e6d3af;

  --accent-petrol: #2b5366;
  --accent-petrol-hover: #224353;
  --accent-petrol-subtle: #edf4f7;
  --accent-petrol-border: #bcd3dc;

  --accent-slate: #475569;
  --accent-emerald-soft: #2e7d62;
  --accent-emerald-subtle: #edf7f3;

  /* Borders & Dividers */
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-dark: #2a3a4d;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.08);
  --shadow-dark: 0 12px 32px rgba(0, 0, 0, 0.25);

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  /* Container */
  --max-width: 1240px;
  --header-height: 80px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.65;
  font-weight: 400;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
}

h3 {
  font-size: clamp(1.3rem, 2vw, 1.6rem);
}

h4 {
  font-size: 1.15rem;
  font-weight: 600;
}

p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.text-lead {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.text-sm {
  font-size: 0.88rem;
}

.text-xs {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.text-gold {
  color: var(--accent-gold);
}

.text-petrol {
  color: var(--accent-petrol);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding: 5.5rem 0;
  position: relative;
}

.section-sm {
  padding: 3.5rem 0;
}

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

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

.section-dark p {
  color: var(--text-inverse-muted);
}

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

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  background-color: var(--accent-gold-subtle);
  color: var(--accent-gold-hover);
  border: 1px solid var(--accent-gold-border);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.badge-tag.petrol {
  background-color: var(--accent-petrol-subtle);
  color: var(--accent-petrol);
  border-color: var(--accent-petrol-border);
}

.badge-tag.dark {
  background-color: rgba(255, 255, 255, 0.08);
  color: #d1d5db;
  border-color: rgba(255, 255, 255, 0.15);
}

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.65rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--accent-petrol);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--accent-petrol-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  color: #ffffff;
}

.btn-gold {
  background-color: var(--accent-gold);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-gold:hover {
  background-color: var(--accent-gold-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  color: #ffffff;
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border-medium);
  color: var(--text-main);
}

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

.btn-outline-white {
  background-color: transparent;
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

.btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
  color: #ffffff;
}

.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.86rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 1.05rem 2.2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-icon {
  width: 1.25em;
  height: 1.25em;
  fill: currentColor;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateX(3px);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(248, 249, 250, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.site-header.scrolled {
  background-color: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow-sm);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand-symbol {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent-petrol) 0%, #152733 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-xs);
  flex-shrink: 0;
}

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

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  line-height: 1.1;
}

.brand-title span {
  color: var(--accent-gold);
  font-weight: 700;
}

.brand-tagline {
  font-size: 0.68rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 0.4rem 0;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-petrol);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.nav-contact-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
}

.nav-contact-badge:hover {
  color: var(--accent-petrol);
  border-color: var(--accent-petrol-border);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.5rem;
  cursor: pointer;
  color: var(--text-main);
}

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background-color: var(--bg-surface);
  z-index: 999;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-smooth), opacity var(--transition-normal);
  overflow-y: auto;
  border-bottom: 1px solid var(--border-subtle);
}

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

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-main);
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

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

/* Top Announcement Bar */
.top-bar {
  background-color: var(--bg-dark);
  color: var(--text-inverse-muted);
  font-size: 0.82rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.top-bar-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-inverse-muted);
}

.top-bar-link:hover {
  color: var(--accent-gold);
}

/* Hero Section */
.hero {
  padding: 4.5rem 0 5.5rem 0;
  background: radial-gradient(circle at 85% 20%, rgba(200, 166, 101, 0.07) 0%, transparent 60%),
              radial-gradient(circle at 15% 80%, rgba(43, 83, 102, 0.06) 0%, transparent 60%),
              var(--bg-body);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-title {
  margin-bottom: 1.35rem;
  color: var(--text-main);
}

.hero-title span.highlight {
  position: relative;
  display: inline-block;
  color: var(--accent-petrol);
}

.hero-description {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 620px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-metrics-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  width: 100%;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
}

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

.metric-number {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-petrol);
  line-height: 1.1;
  margin-bottom: 0.25rem;
}

.metric-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Hero Visual & Intelligence Card */
.hero-visual-container {
  position: relative;
}

.intel-card-preview {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.8rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.intel-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.4rem;
}

.intel-card-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--accent-petrol);
  letter-spacing: 0.05em;
}

.status-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald-soft);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(46, 125, 98, 0.2);
}

.intel-metric-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.intel-metric-box {
  background-color: var(--bg-surface-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  border: 1px solid var(--border-subtle);
}

.intel-metric-box .label {
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.intel-metric-box .val {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

.intel-metric-box .change {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-emerald-soft);
  margin-top: 0.2rem;
}

.intel-chart-mock {
  background: linear-gradient(180deg, rgba(43, 83, 102, 0.04) 0%, rgba(43, 83, 102, 0.01) 100%);
  border: 1px dashed var(--border-medium);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  margin-bottom: 1.4rem;
}

.chart-title-sm {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.8rem;
  display: flex;
  justify-content: space-between;
}

.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
  height: 90px;
}

.chart-bar-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
}

.chart-bar-fill {
  width: 100%;
  background-color: var(--accent-petrol-border);
  border-radius: 4px 4px 0 0;
  transition: height var(--transition-smooth), background-color var(--transition-fast);
}

.chart-bar-col:hover .chart-bar-fill {
  background-color: var(--accent-petrol);
}

.chart-bar-col.active .chart-bar-fill {
  background-color: var(--accent-gold);
}

.chart-bar-label {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.intel-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  padding-top: 0.8rem;
  border-top: 1px solid var(--border-subtle);
}

/* Trust Bar / Sector Coverage */
.trust-bar {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 2.2rem 0;
}

.trust-bar-title {
  text-align: center;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.trust-badges-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2.5rem;
}

.trust-badge-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  opacity: 0.85;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}

.trust-badge-item:hover {
  opacity: 1;
  color: var(--accent-petrol);
}

.trust-badge-item svg {
  width: 20px;
  height: 20px;
  color: var(--accent-gold);
}

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

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

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

.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
}

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

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--accent-petrol-subtle);
  color: var(--accent-petrol);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  border: 1px solid var(--accent-petrol-border);
}

.card-icon.gold {
  background-color: var(--accent-gold-subtle);
  color: var(--accent-gold-hover);
  border-color: var(--accent-gold-border);
}

.card-title {
  font-size: 1.3rem;
  margin-bottom: 0.85rem;
  color: var(--text-main);
}

.card-body {
  color: var(--text-muted);
  font-size: 0.98rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-features {
  list-style: none;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.card-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.card-features li svg {
  width: 16px;
  height: 16px;
  color: var(--accent-emerald-soft);
  margin-top: 3px;
  flex-shrink: 0;
}

.card-link {
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--accent-petrol);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: auto;
}

.card-link:hover {
  color: var(--accent-gold-hover);
}

.card-link svg {
  transition: transform var(--transition-fast);
}

.card-link:hover svg {
  transform: translateX(4px);
}

/* Feature Split Section */
.feature-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.feature-split.reverse {
  direction: rtl;
}

.feature-split.reverse > * {
  direction: ltr;
}

.feature-visual-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.5rem 0;
}

.pill-item {
  padding: 0.4rem 0.9rem;
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* Interactive Feasibility & Scope Estimator Widget */
.estimator-wrapper {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.estimator-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
}

.estimator-controls {
  padding: 3rem;
  border-right: 1px solid var(--border-subtle);
}

.estimator-output {
  background-color: var(--bg-dark);
  color: var(--text-inverse);
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.form-group {
  margin-bottom: 1.6rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.6rem;
}

.form-select, .form-input, .form-textarea {
  width: 100%;
  padding: 0.85rem 1.1rem;
  background-color: var(--bg-body);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: 0.96rem;
  color: var(--text-main);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.form-select:focus, .form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent-petrol);
  background-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(43, 83, 102, 0.1);
}

.btn-radio-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}

.btn-radio-card {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
  background-color: var(--bg-body);
}

.btn-radio-card input {
  display: none;
}

.btn-radio-card.active {
  border-color: var(--accent-petrol);
  background-color: var(--accent-petrol-subtle);
}

.btn-radio-card .title {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

.btn-radio-card .desc {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.output-summary-box {
  background-color: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  margin-bottom: 2rem;
}

.output-stat-row {
  display: flex;
  justify-content: space-between;
  padding: 0.7rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.92rem;
}

.output-stat-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.output-stat-row .stat-label {
  color: var(--text-inverse-muted);
}

.output-stat-row .stat-value {
  font-weight: 600;
  color: var(--text-inverse);
}

/* Testimonials System */
.testimonials-filter-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.5rem 1.2rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--accent-petrol);
  border-color: var(--accent-petrol);
  color: #ffffff;
}

.testimonial-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.testimonial-stars {
  display: flex;
  gap: 0.25rem;
  color: var(--accent-gold);
  margin-bottom: 1.2rem;
}

.testimonial-stars svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.testimonial-quote {
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--text-main);
  margin-bottom: 1.8rem;
  flex-grow: 1;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border-subtle);
}

.author-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: var(--accent-petrol-subtle);
  color: var(--accent-petrol);
  font-family: var(--font-heading);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
  border: 1px solid var(--accent-petrol-border);
}

.author-info .name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text-main);
}

.author-info .role {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.author-info .firm {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-gold-hover);
}

/* Process & Methodology */
.process-steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.8rem;
  position: relative;
}

.step-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem 1.6rem;
  position: relative;
  display: flex;
  flex-direction: column;
}

.step-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-gold-border);
  line-height: 1;
  margin-bottom: 1rem;
}

.step-title {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
  color: var(--text-main);
}

.step-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Global Reach Map / Geo Grid */
.geo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.geo-card {
  background-color: var(--bg-dark-surface);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  color: var(--text-inverse);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

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

.geo-region {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 0.5rem;
}

.geo-markets {
  font-size: 0.86rem;
  color: var(--text-inverse-muted);
  margin-bottom: 1rem;
}

.geo-stat {
  font-size: 0.8rem;
  color: #94a3b8;
  border-top: 1px solid var(--border-dark);
  padding-top: 0.8rem;
}

/* Case Studies Preview */
.case-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.case-card-header {
  padding: 1.8rem 1.8rem 1rem 1.8rem;
  border-bottom: 1px solid var(--border-subtle);
}

.case-tag {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-petrol);
  margin-bottom: 0.5rem;
}

.case-title {
  font-size: 1.25rem;
  line-height: 1.35;
  color: var(--text-main);
}

.case-card-body {
  padding: 1.8rem;
  flex-grow: 1;
}

.case-impact-metric {
  background-color: var(--accent-gold-subtle);
  border-left: 3px solid var(--accent-gold);
  padding: 0.8rem 1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: 1.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

/* FAQ Accordion */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

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

.faq-question {
  width: 100%;
  padding: 1.3rem 1.6rem;
  text-align: left;
  background: none;
  border: none;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

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

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-normal);
  color: var(--accent-gold);
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.6rem;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 1.4rem;
}

.faq-answer p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* Contact & Inquiry Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3.5rem;
}

.contact-info-card {
  background-color: var(--bg-dark);
  color: var(--text-inverse);
  border-radius: var(--radius-xl);
  padding: 2.8rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-direct-item {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  margin-bottom: 1.8rem;
}

.contact-direct-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-direct-title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-inverse-muted);
  margin-bottom: 0.25rem;
}

.contact-direct-val {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-inverse);
}

.contact-direct-val a:hover {
  color: var(--accent-gold);
}

.contact-form-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.8rem;
  box-shadow: var(--shadow-md);
}

/* Form Message Banner */
.form-success-banner {
  display: none;
  background-color: var(--accent-emerald-subtle);
  border: 1px solid #b7dfd0;
  color: #1b5340;
  border-radius: var(--radius-md);
  padding: 1.2rem;
  margin-bottom: 1.5rem;
  font-size: 0.92rem;
}

.form-success-banner.visible {
  display: block;
  animation: fadeIn 0.4s ease;
}

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

/* Footer */
.site-footer {
  background-color: var(--bg-dark);
  color: var(--text-inverse-muted);
  padding: 4.5rem 0 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: auto;
}

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

.footer-brand p {
  color: var(--text-inverse-muted);
  font-size: 0.92rem;
  margin-top: 1.2rem;
  max-width: 320px;
}

.footer-col h5 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-inverse);
  margin-bottom: 1.3rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--text-inverse-muted);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

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

/* Page Hero Banner for Inner Pages */
.page-hero {
  background: radial-gradient(circle at 80% 20%, rgba(200, 166, 101, 0.08) 0%, transparent 60%),
              radial-gradient(circle at 20% 80%, rgba(43, 83, 102, 0.08) 0%, transparent 60%),
              var(--bg-body);
  padding: 4.5rem 0 3.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
}

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

.breadcrumbs span {
  color: var(--text-light);
}

/* Tab Navigation for Service and Feasibility Hubs */
.nav-tabs-wrapper {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 2.5rem;
  overflow-x: auto;
}

.tab-nav-btn {
  padding: 0.85rem 1.4rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.tab-nav-btn:hover {
  color: var(--accent-petrol);
}

.tab-nav-btn.active {
  color: var(--accent-petrol);
  border-bottom-color: var(--accent-gold);
}

.tab-content-panel {
  display: none;
}

.tab-content-panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .geo-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .estimator-controls {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
  }

  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }

  .feature-split {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .hero-metrics-bar {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }

  .estimator-controls, .estimator-output {
    padding: 1.8rem;
  }

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