/* ============================================================
   Atmo Technologies — Professional Corporate Website
   Design System & Master Stylesheet
   ============================================================ */

/* --- CSS Custom Properties / Design Tokens --- */
:root {
  /* Primary Palette */
  --color-navy-900: #060f1e;
  --color-navy-800: #0a1929;
  --color-navy-700: #102a43;
  --color-navy-600: #1a3a5c;
  --color-navy-500: #243b53;

  /* Accent */
  --color-blue-600: #2563eb;
  --color-blue-500: #3b82f6;
  --color-blue-400: #60a5fa;
  --color-blue-300: #93bbfd;
  --color-blue-100: #dbeafe;
  --color-blue-50: #eff6ff;

  /* Secondary Accent — Teal */
  --color-teal-500: #14b8a6;
  --color-teal-400: #2dd4bf;
  --color-teal-100: #ccfbf1;
  --color-teal-50: #f0fdfa;

  /* Gold / Amber — Warm accent for CTAs */
  --color-amber-500: #f59e0b;
  --color-amber-400: #fbbf24;
  --color-amber-100: #fef3c7;

  /* Neutrals */
  --color-gray-900: #111827;
  --color-gray-800: #1f2937;
  --color-gray-700: #374151;
  --color-gray-600: #4b5563;
  --color-gray-500: #6b7280;
  --color-gray-400: #9ca3af;
  --color-gray-300: #d1d5db;
  --color-gray-200: #e5e7eb;
  --color-gray-100: #f3f4f6;
  --color-gray-50: #f9fafb;
  --color-white: #ffffff;

  /* Semantic */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Typography */
  --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;

  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 40px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
  --shadow-blue: 0 8px 30px rgba(37, 99, 235, 0.25);

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

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-navy-800);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); letter-spacing: -0.01em; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p { margin-bottom: 1rem; color: var(--color-gray-600); }
p:last-child { margin-bottom: 0; }

a {
  color: var(--color-blue-600);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}
a:hover { color: var(--color-blue-500); }

ul, ol { padding-left: 1.5rem; margin-bottom: 1rem; }
li { margin-bottom: 0.5rem; color: var(--color-gray-600); }

strong { font-weight: 600; color: var(--color-gray-900); }

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

/* --- Utility Classes --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-blue-600);
  background: var(--color-blue-50);
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.section-title {
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--color-gray-500);
  max-width: 600px;
  line-height: 1.7;
}

.text-center { text-align: center; }
.text-gradient {
  background: linear-gradient(135deg, var(--color-blue-600), var(--color-teal-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-blue-600), var(--color-blue-500));
  color: var(--color-white);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.45);
  color: var(--color-white);
}

.btn-secondary {
  background: transparent;
  color: var(--color-blue-600);
  border-color: var(--color-blue-600);
}
.btn-secondary:hover {
  background: var(--color-blue-600);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-light {
  background: var(--color-white);
  color: var(--color-navy-800);
  border-color: var(--color-white);
}
.btn-light:hover {
  background: transparent;
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-gold {
  background: linear-gradient(135deg, var(--color-amber-500), var(--color-amber-400));
  color: var(--color-navy-900);
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.35);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.5);
  color: var(--color-navy-900);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--duration-normal) var(--ease-out);
}

.nav.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.95);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-navy-900);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-blue-600), var(--color-teal-500));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  color: var(--color-gray-700);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  position: relative;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-blue-600);
  border-radius: 1px;
  transition: width var(--duration-normal) var(--ease-out);
}

.nav-links a:hover {
  color: var(--color-blue-600);
}
.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  margin-left: 0.5rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--color-navy-800);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-out);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-navy-900);
  overflow: hidden;
  padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-4xl);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(20, 184, 166, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image:
    linear-gradient(rgba(255,255,255,0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.1) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: var(--color-blue-400);
  padding: 0.4rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-xl);
  letter-spacing: 0.02em;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-teal-400);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
  color: var(--color-white);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  line-height: 1.08;
  margin-bottom: var(--space-lg);
}

.hero-title span {
  background: linear-gradient(135deg, var(--color-blue-400), var(--color-teal-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.2rem;
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: var(--space-2xl);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: absolute;
  right: -40px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  pointer-events: none;
}

.hero-card-stack {
  position: relative;
  width: 420px;
  height: 480px;
}

.hero-floating-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.hero-floating-card:nth-child(1) {
  top: 40px;
  right: 60px;
  width: 280px;
  animation: float-card 6s ease-in-out infinite;
}
.hero-floating-card:nth-child(2) {
  top: 160px;
  right: 0;
  width: 240px;
  animation: float-card 6s ease-in-out 1s infinite;
}
.hero-floating-card:nth-child(3) {
  top: 300px;
  right: 80px;
  width: 260px;
  animation: float-card 6s ease-in-out 2s infinite;
}

@keyframes float-card {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.hero-floating-card .card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
  font-size: 1rem;
}

.hero-floating-card .card-line {
  height: 3px;
  border-radius: 2px;
  margin-bottom: 0.5rem;
  opacity: 0.6;
}

.hero-floating-card .card-line:nth-of-type(1) { width: 70%; background: var(--color-blue-400); }
.hero-floating-card .card-line:nth-of-type(2) { width: 50%; background: var(--color-teal-400); }
.hero-floating-card .card-line:nth-of-type(3) { width: 60%; background: rgba(255,255,255,0.3); }

/* --- Section Spacing --- */
.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section-tight {
  padding: var(--space-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section-header .section-subtitle {
  margin: 0 auto;
}

/* --- Services Section --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-blue-600), var(--color-teal-500));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-slow) var(--ease-out);
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
}

.service-icon.blue {
  background: var(--color-blue-50);
  color: var(--color-blue-600);
}

.service-icon.teal {
  background: var(--color-teal-50);
  color: var(--color-teal-500);
}

.service-icon.amber {
  background: var(--color-amber-100);
  color: var(--color-amber-500);
}

.service-card h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.service-card p {
  color: var(--color-gray-500);
  font-size: 0.95rem;
  line-height: 1.7;
}

.service-card .service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: var(--space-md);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-blue-600);
  transition: gap var(--duration-fast) var(--ease-out);
}

.service-card .service-link:hover {
  gap: 0.6rem;
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-image-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--color-navy-700), var(--color-navy-600));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.about-image-placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(20, 184, 166, 0.2));
}

.about-image-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: white;
}

.about-image-content .big-number {
  font-size: 5rem;
  font-weight: 900;
  line-height: 1;
  opacity: 0.9;
}

.about-image-content .big-label {
  font-size: 1.1rem;
  font-weight: 500;
  opacity: 0.7;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.about-accent-card {
  position: absolute;
  bottom: -30px;
  right: -30px;
  background: var(--color-white);
  padding: 1.25rem 1.75rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  z-index: 2;
}

.about-accent-card .number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-blue-600);
  line-height: 1;
}

.about-accent-card .label {
  font-size: 0.85rem;
  color: var(--color-gray-500);
  font-weight: 500;
}

.about-text h2 {
  margin-bottom: var(--space-md);
}

.about-text .lead {
  font-size: 1.15rem;
  color: var(--color-gray-700);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.about-features {
  list-style: none;
  padding: 0;
  margin: var(--space-lg) 0 0;
}

.about-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: var(--space-md);
  color: var(--color-gray-700);
}

.about-features li::before {
  content: '';
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background: var(--color-teal-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 4px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2314b8a6' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

/* --- Stats Section --- */
.stats-section {
  background: var(--color-navy-900);
  color: white;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='1.5'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-2xl);
  text-align: center;
  position: relative;
  z-index: 1;
}

.stat-item .stat-number {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-blue-400), var(--color-teal-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
}

.stat-item .stat-label {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.65);
  font-weight: 500;
}

/* --- Industries Section --- */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
}

.industry-card {
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  border: 1px solid var(--color-gray-100);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: default;
}

.industry-card:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-blue-100);
}

.industry-card .industry-icon {
  font-size: 1.8rem;
  margin-bottom: var(--space-md);
}

.industry-card h4 {
  font-size: 1.05rem;
  margin-bottom: var(--space-xs);
}

.industry-card p {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-blue-600), var(--color-navy-700));
  border-radius: var(--radius-xl);
  padding: var(--space-4xl) var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-banner h2 {
  color: white;
  margin-bottom: var(--space-md);
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto var(--space-xl);
}

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
}

.contact-info h2 {
  margin-bottom: var(--space-md);
}

.contact-details {
  list-style: none;
  padding: 0;
  margin: var(--space-xl) 0 0;
}

.contact-details li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: var(--space-lg);
  color: var(--color-gray-600);
}

.contact-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--color-blue-50);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--color-blue-600);
}

.contact-detail-label {
  font-weight: 600;
  color: var(--color-gray-900);
  font-size: 0.9rem;
  margin-bottom: 0.15rem;
}

.contact-form-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-gray-700);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  background: var(--color-gray-50);
  color: var(--color-gray-900);
  transition: all var(--duration-fast) var(--ease-out);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-blue-500);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

/* --- Footer --- */
.footer {
  background: var(--color-navy-900);
  color: rgba(255, 255, 255, 0.6);
  padding: var(--space-4xl) 0 var(--space-xl);
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand-desc {
  margin-top: var(--space-md);
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer h4 {
  color: white;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
  font-weight: 700;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.9rem;
  transition: color var(--duration-fast) var(--ease-out);
  text-decoration: none;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--space-xl);
  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;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.85rem;
}

/* ============================================================
   Privacy Policy & Terms of Service Pages
   ============================================================ */
.legal-page {
  padding-top: calc(var(--nav-height) + var(--space-4xl));
  padding-bottom: var(--space-4xl);
  background: var(--color-gray-50);
}

.legal-container {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.legal-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
  padding: var(--space-3xl) 0;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
}

.legal-header h1 {
  margin-bottom: var(--space-sm);
}

.legal-header .effective-date {
  color: var(--color-gray-500);
  font-size: 0.95rem;
}

.legal-content {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
}

.legal-content h2 {
  font-size: 1.4rem;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-gray-100);
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content h3 {
  font-size: 1.15rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.legal-content p {
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.legal-content ul,
.legal-content ol {
  margin-bottom: var(--space-lg);
}

.legal-content ul li,
.legal-content ol li {
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.legal-content a {
  color: var(--color-blue-600);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-toc {
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.legal-toc h3 {
  margin-top: 0;
  margin-bottom: var(--space-md);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.legal-toc ol {
  margin-bottom: 0;
  columns: 2;
  column-gap: var(--space-xl);
}

.legal-toc ol li {
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}

/* --- Page Header (non-home) --- */
.page-hero {
  background: var(--color-navy-900);
  padding: calc(var(--nav-height) + var(--space-4xl)) 0 var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero h1 {
  color: white;
  margin-bottom: var(--space-md);
}

.page-hero p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 1.15rem;
  max-width: 500px;
  margin: 0 auto;
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .about-visual {
    order: -1;
  }

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

  .hero-visual {
    display: none;
  }

  .hero-content {
    max-width: 100%;
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 68px;
    --space-5xl: 4rem;
    --space-4xl: 3rem;
    --space-3xl: 2.5rem;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-xl);
    gap: 1.25rem;
    border-bottom: 1px solid var(--color-gray-200);
    transform: translateY(-120%);
    transition: transform var(--duration-normal) var(--ease-out);
    box-shadow: var(--shadow-lg);
  }

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

  .nav-toggle {
    display: flex;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

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

  .legal-toc ol {
    columns: 1;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

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

  .about-accent-card {
    right: 0;
  }

  .legal-content {
    padding: var(--space-xl);
  }

  .cta-banner {
    padding: var(--space-2xl) var(--space-lg);
  }
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--color-gray-400);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-500);
}

/* Selection */
::selection {
  background: rgba(37, 99, 235, 0.2);
  color: var(--color-navy-900);
}