/* ==========================================================================
   TBM INTELLIGENCE — CORPORATE STYLESHEET
   Design System: Enterprise Technology, Data Intelligence & Digital Transformation
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS VARIABLES & THEME SYSTEM
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette — Dark Mode (Default) */
  --bg-primary: #080b11;
  --bg-secondary: #0e131f;
  --bg-tertiary: #141b2d;
  --bg-card: rgba(18, 24, 38, 0.72);
  --bg-card-hover: rgba(26, 35, 56, 0.85);
  --bg-glass: rgba(14, 19, 31, 0.65);
  --bg-elevated: #1a233a;

  /* Accent & Gradients */
  --accent: #00d2ff;
  --accent-secondary: #3b82f6;
  --accent-tertiary: #6366f1;
  --accent-glow: rgba(0, 210, 255, 0.18);
  --accent-glow-strong: rgba(0, 210, 255, 0.35);
  --accent-gradient: linear-gradient(135deg, #00d2ff 0%, #3b82f6 50%, #6366f1 100%);
  --accent-gradient-subtle: linear-gradient(135deg, rgba(0, 210, 255, 0.15) 0%, rgba(59, 130, 246, 0.08) 100%);

  /* Typography Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #080b11;
  --text-accent: #38bdf8;

  /* Borders & Dividers */
  --border: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(0, 210, 255, 0.6);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --border-accent: rgba(0, 210, 255, 0.3);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 35px var(--accent-glow);

  /* Dimensions & Shapes */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Header Height */
  --header-height: 80px;
  --header-height-scrolled: 68px;

  /* Fonts */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', Menlo, Monaco, Consolas, monospace;
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.8);
  --bg-elevated: #ffffff;

  --accent: #0284c7;
  --accent-secondary: #2563eb;
  --accent-tertiary: #4f46e5;
  --accent-glow: rgba(2, 132, 199, 0.12);
  --accent-glow-strong: rgba(2, 132, 199, 0.25);
  --accent-gradient: linear-gradient(135deg, #0284c7 0%, #2563eb 50%, #4f46e5 100%);
  --accent-gradient-subtle: linear-gradient(135deg, rgba(2, 132, 199, 0.1) 0%, rgba(37, 99, 235, 0.05) 100%);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  --text-accent: #0284c7;

  --border: rgba(15, 23, 42, 0.1);
  --border-focus: rgba(2, 132, 199, 0.6);
  --border-subtle: rgba(15, 23, 42, 0.05);
  --border-accent: rgba(2, 132, 199, 0.35);

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 25px rgba(2, 132, 199, 0.15);
}

/* --------------------------------------------------------------------------
   2. GLOBAL RESETS & BASE STYLES
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
  outline: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

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

/* --------------------------------------------------------------------------
   3. UTILITY CLASSES & LAYOUT
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding-top: 100px;
  padding-bottom: 100px;
  position: relative;
}

.section-divider {
  border-top: 1px solid var(--border-subtle);
}

.section-header {
  margin-bottom: 56px;
  max-width: 820px;
}

.section-header.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-accent);
  margin-bottom: 16px;
  padding: 4px 12px;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.section-title {
  font-size: clamp(2rem, 3.8vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 18px;
}

.section-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.6;
}

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

/* --------------------------------------------------------------------------
   4. BUTTONS & INTERACTIVE ELEMENTS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 18px var(--accent-glow);
}

.btn-primary:hover {
  box-shadow: 0 6px 26px var(--accent-glow-strong);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

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

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border-accent);
}

.btn-outline:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1rem;
}

.btn-icon {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

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

/* --------------------------------------------------------------------------
   5. HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  background: rgba(8, 11, 17, 0.4);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-normal);
}

[data-theme="light"] .site-header {
  background: rgba(248, 250, 252, 0.55);
}

.site-header.scrolled {
  height: var(--header-height-scrolled);
  background: var(--bg-glass);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

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

.logo-main {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  line-height: 1.1;
}

.logo-sub {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--text-accent);
  text-transform: uppercase;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--accent-glow);
}

.nav-link.active {
  color: var(--accent);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Theme Toggle Button */
.theme-toggle {
  position: relative;
  overflow: hidden;
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-normal);
}

.theme-toggle .icon-sun {
  display: none;
}

.theme-toggle .icon-moon {
  display: block;
}

[data-theme="light"] .theme-toggle .icon-sun {
  display: block;
}

[data-theme="light"] .theme-toggle .icon-moon {
  display: none;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  z-index: 1001;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.mobile-nav-toggle.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-nav-toggle.open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Drawer Navigation */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 360px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  padding: 96px 32px 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-lg);
  z-index: 999;
  transition: right var(--transition-normal);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.mobile-nav-drawer.open {
  right: 0;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-nav-link {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 0;
  border-bottom: 1px solid var(--border-subtle);
  transition: color var(--transition-fast);
}

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

.mobile-nav-footer {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mobile-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

/* --------------------------------------------------------------------------
   6. HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: calc(var(--header-height) + 60px);
  padding-bottom: 80px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-glow-bg {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translate(-50%, -20%);
  width: 900px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-glow) 0%, rgba(59, 130, 246, 0.05) 50%, transparent 70%);
  pointer-events: none;
  filter: blur(60px);
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

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

.hero-brand-title {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-accent);
  margin-bottom: 12px;
}

.hero-headline {
  font-size: clamp(2.35rem, 4.8vw, 3.75rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.hero-subtext {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 36px;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-trust-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 36px;
}

.hero-trust-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* Hero Quick Stats */
.hero-stats-preview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  width: 100%;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.hero-stat-item {
  display: flex;
  flex-direction: column;
}

.hero-stat-number {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.hero-stat-number .accent {
  color: var(--accent);
}

.hero-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
  margin-top: 4px;
}

.hero-stats-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: 12px;
}

/* Hero Canvas & Graphic Container */
.hero-visual-wrapper {
  position: relative;
  width: 100%;
  height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-canvas {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: radial-gradient(circle at center, rgba(14, 21, 37, 0.85) 0%, rgba(8, 11, 17, 0.95) 100%);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

[data-theme="light"] .hero-canvas {
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.9) 0%, rgba(241, 245, 249, 0.9) 100%);
}

.hero-telemetry-overlay {
  position: absolute;
  inset: 20px;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.telemetry-card {
  padding: 12px 18px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  max-width: 220px;
}

.telemetry-card.top-right {
  align-self: flex-end;
}

.telemetry-card.bottom-left {
  align-self: flex-start;
}

.telemetry-header {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.telemetry-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 6px #10b981;
}

.telemetry-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.telemetry-data {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   7. ABOUT SECTION
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
}

.about-statement {
  font-size: clamp(1.4rem, 2.3vw, 1.85rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-primary);
  margin-bottom: 24px;
  border-left: 3px solid var(--accent);
  padding-left: 20px;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.about-graphic-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.about-graphic-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
}

.architecture-diagram {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.diagram-node {
  padding: 16px 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.diagram-node:hover {
  transform: translateX(6px);
  border-color: var(--border-accent);
}

.node-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.node-content h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.node-content p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.diagram-connector {
  width: 2px;
  height: 18px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-secondary));
  margin-left: 38px;
}

/* --------------------------------------------------------------------------
   8. VISION SECTION
   -------------------------------------------------------------------------- */
.vision-card {
  background: radial-gradient(circle at top left, var(--bg-card-hover) 0%, var(--bg-card) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: clamp(36px, 6vw, 64px);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.vision-card::after {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--accent-glow-strong) 0%, transparent 70%);
  pointer-events: none;
}

.vision-heading {
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.vision-body {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 960px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.vision-highlight {
  color: var(--text-primary);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   9. MISSION SECTION
   -------------------------------------------------------------------------- */
.mission-lead {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 820px;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.mission-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all var(--transition-fast);
  position: relative;
}

.mission-card:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md), 0 0 20px var(--accent-glow);
}

.mission-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--accent-glow);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--border-accent);
}

.mission-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.45;
}

/* --------------------------------------------------------------------------
   10. WHAT WE DO SECTION
   -------------------------------------------------------------------------- */
.what-we-do-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.what-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.what-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.what-card:hover {
  transform: translateY(-6px);
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

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

.what-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.what-card-num {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-muted);
}

.what-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.what-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.what-card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 28px;
}

.what-card-explore {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap var(--transition-fast);
}

.what-card:hover .what-card-explore {
  gap: 12px;
}

/* --------------------------------------------------------------------------
   11. SERVICES SECTION
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
}

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

.service-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.service-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.service-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
}

.service-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.service-items-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-item-bullet {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.service-bullet-icon {
  width: 16px;
  height: 16px;
  color: var(--accent);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   12. INDUSTRIES SECTION
   -------------------------------------------------------------------------- */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.industry-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition-fast);
  position: relative;
}

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

.industry-num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-accent);
  margin-bottom: 12px;
}

.industry-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.industry-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   13. APPROACH TIMELINE SECTION
   -------------------------------------------------------------------------- */
.approach-timeline-desktop {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
  margin-top: 50px;
}

.timeline-track-desktop {
  position: absolute;
  top: 36px;
  left: 5%;
  right: 5%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-secondary) 50%, var(--accent-tertiary) 100%);
  z-index: 0;
}

.timeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 1;
}

.timeline-step-node {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 2px solid var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: all var(--transition-fast);
}

.timeline-step:hover .timeline-step-node {
  transform: scale(1.1);
  box-shadow: 0 0 30px var(--accent-glow-strong);
  background: var(--accent-glow);
}

.timeline-node-step {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-accent);
  text-transform: uppercase;
}

.timeline-node-num {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
}

.timeline-step-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  width: 100%;
  height: 100%;
  transition: all var(--transition-fast);
}

.timeline-step:hover .timeline-step-content {
  border-color: var(--border-accent);
  transform: translateY(-4px);
}

.timeline-step-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.timeline-step-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   14. WHY TBM INTELLIGENCE SECTION
   -------------------------------------------------------------------------- */
.why-us-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
  margin-bottom: 40px;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition-fast);
}

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

.why-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.why-card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.why-card-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.specialized-banner {
  background: var(--accent-gradient-subtle);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: 32px 36px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.specialized-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--accent-glow);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.specialized-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.specialized-text {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   15. SELECTED EXPERIENCE / CASE STUDIES
   -------------------------------------------------------------------------- */
.case-studies-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.case-study-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 48px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.case-study-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-lg);
}

.case-study-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-accent);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.case-study-title {
  font-size: clamp(1.4rem, 2.3vw, 1.85rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 24px;
}

.case-block {
  margin-bottom: 20px;
}

.case-block-label {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.case-block-label svg {
  width: 14px;
  height: 14px;
  color: var(--accent);
}

.case-block-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.case-study-sidebar {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.case-metrics-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.case-metric-box {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 12px;
}

.case-metric-box:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.case-metric-val {
  font-size: 1.5rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent);
}

.case-metric-lbl {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.case-impact-areas-title {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.case-impact-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.impact-tag {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 5px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   16. IMPACT METRICS SECTION
   -------------------------------------------------------------------------- */
.metrics-section {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 28px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition-fast);
}

.metric-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  box-shadow: 0 0 25px var(--accent-glow);
}

.metric-number-wrap {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 12px;
}

.metric-number-wrap .metric-counter {
  color: var(--accent);
}

.metric-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.metrics-disclaimer {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-style: italic;
}

/* --------------------------------------------------------------------------
   17. TECHNOLOGY STACK SECTION
   -------------------------------------------------------------------------- */
.tech-stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.tech-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition-fast);
}

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

.tech-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

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

.tech-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.tech-badges-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-badge {
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 6px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.tech-badge:hover {
  border-color: var(--border-accent);
  background: var(--accent-glow);
  color: var(--accent);
}

.tech-supporting-statement {
  text-align: center;
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

/* --------------------------------------------------------------------------
   18. VALUE PROPOSITION SECTION
   -------------------------------------------------------------------------- */
.value-flow-wrapper {
  margin-bottom: 50px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 24px;
}

.value-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1000px;
  margin: 0 auto;
  gap: 12px;
}

.flow-step-box {
  padding: 16px 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  text-align: center;
  color: var(--text-primary);
  flex: 1;
  transition: all var(--transition-fast);
}

.flow-step-box.highlight {
  background: var(--accent-gradient);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 18px var(--accent-glow);
}

.flow-step-box:hover {
  transform: translateY(-2px);
  border-color: var(--border-accent);
}

.flow-arrow {
  color: var(--accent);
  font-size: 1.25rem;
  font-weight: 800;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.comparison-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.comparison-card:hover {
  border-color: var(--border-accent);
  transform: translateX(4px);
  background: var(--bg-card-hover);
}

.compare-from {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: line-through;
  opacity: 0.75;
}

.compare-arrow {
  color: var(--accent);
  display: flex;
  align-items: center;
  font-size: 1.1rem;
}

.compare-to {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   19. COMMITMENT SECTION
   -------------------------------------------------------------------------- */
.commitment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.commitment-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.commitment-num {
  font-family: var(--font-mono);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 16px;
  line-height: 1;
}

.commitment-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.commitment-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   20. OUR FUTURE SECTION
   -------------------------------------------------------------------------- */
.future-card {
  background: radial-gradient(circle at center, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: clamp(36px, 6vw, 64px);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.future-content {
  max-width: 900px;
}

.future-heading {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  line-height: 1.25;
}

.future-text {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.future-focus-areas-title {
  font-size: 0.875rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.future-focus-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.future-focus-pill {
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.future-focus-pill:hover {
  border-color: var(--border-accent);
  background: var(--accent-glow);
  color: var(--accent);
}

.future-focus-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* --------------------------------------------------------------------------
   21. FINAL CTA BANNER
   -------------------------------------------------------------------------- */
.cta-banner {
  background: radial-gradient(circle at top right, rgba(0, 210, 255, 0.15) 0%, var(--bg-secondary) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  padding: clamp(48px, 7vw, 80px) clamp(24px, 5vw, 64px);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.cta-banner-content {
  max-width: 780px;
  margin: 0 auto;
}

.cta-banner-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 20px;
  line-height: 1.15;
}

.cta-banner-text {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 36px;
}

.cta-banner-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   22. CONTACT SECTION & FORM
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: flex-start;
}

.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

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

.contact-info-text h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.contact-info-text p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.contact-form-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 13px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  background: var(--bg-tertiary);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
  padding-right: 42px;
}

.form-select option {
  background: var(--bg-primary);
  color: var(--text-primary);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

.form-error {
  font-size: 0.775rem;
  color: #ef4444;
  display: none;
}

.form-group.has-error .form-input,
.form-group.has-error .form-select,
.form-group.has-error .form-textarea {
  border-color: #ef4444;
}

.form-group.has-error .form-error {
  display: block;
}

.form-status {
  padding: 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  display: none;
  line-height: 1.5;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #10b981;
}

/* --------------------------------------------------------------------------
   23. FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding-top: 80px;
  padding-bottom: 40px;
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-tagline {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-accent);
}

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

.footer-location {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.footer-col-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 18px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-social-links {
  display: flex;
  gap: 12px;
}

.social-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.back-to-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.back-to-top-btn:hover {
  color: var(--accent);
}

/* Floating Back to Top */
.floating-back-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition-normal);
}

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

.floating-back-top:hover {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 0 20px var(--accent-glow-strong);
  transform: translateY(-3px);
}

/* --------------------------------------------------------------------------
   24. SCROLL REVEAL ANIMATIONS
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.75s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.75s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

/* --------------------------------------------------------------------------
   25. RESPONSIVE DESIGN & MEDIA QUERIES
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-visual-wrapper {
    height: 420px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .case-study-card {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

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

  .approach-timeline-desktop {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .timeline-track-desktop {
    display: none;
  }

  .timeline-step {
    flex-direction: row;
    text-align: left;
    gap: 20px;
  }

  .timeline-step-node {
    margin-bottom: 0;
    flex-shrink: 0;
  }
}

@media (max-width: 860px) {
  .nav-desktop, .header-cta {
    display: none;
  }

  .mobile-nav-toggle {
    display: flex;
  }

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

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

  .value-flow {
    flex-direction: column;
    gap: 12px;
  }

  .flow-arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 580px) {
  .section {
    padding-top: 70px;
    padding-bottom: 70px;
  }

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

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

  .hero-actions .btn {
    width: 100%;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .timeline-step {
    flex-direction: column;
    text-align: center;
  }

  .contact-form-container, .contact-info-card {
    padding: 24px 18px;
  }
}

/* --------------------------------------------------------------------------
   26. ACCESSIBILITY: 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;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}