/* ============================================================
   ZAMON SOFT — Main Stylesheet
   Professional corporate website for a software company
   ============================================================ */

/* ---- CSS Custom Properties ---- */
:root {
  /* Brand Colors */
  --color-primary: #0f52ba;
  --color-primary-dark: #0a3d8f;
  --color-primary-light: #1a6ae0;
  --color-accent: #4fc3f7;
  --color-accent-dark: #0288d1;

  /* Neutrals */
  --color-white: #ffffff;
  --color-bg: #f8fafc;
  --color-bg-alt: #f1f5f9;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;

  /* Text */
  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #94a3b8;
  --color-text-on-dark: #ffffff;

  /* Status */
  --color-success: #10b981;
  --color-error: #ef4444;

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

  /* Type Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-glow: 0 0 40px rgb(15 82 186 / 0.25);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 72px;
  --section-py: var(--space-24);
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
  overflow-x: hidden;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul, ol { list-style: none; }
address { font-style: normal; }

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* ---- Skip Link ---- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 9999;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-3) var(--space-6);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-weight: 600;
}
.skip-link:focus { top: 0; }

/* ---- Focus Styles ---- */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: white;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::after { opacity: 0.08; }
.btn:active { transform: scale(0.98); }

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgb(15 82 186 / 0.35);
}

.btn--primary:hover {
  background: var(--color-primary-light);
  box-shadow: 0 6px 20px rgb(15 82 186 / 0.45);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgb(255 255 255 / 0.4);
  backdrop-filter: blur(8px);
}

.btn--outline:hover {
  border-color: var(--color-white);
  background: rgb(255 255 255 / 0.1);
  transform: translateY(-1px);
}

.btn--full { width: 100%; justify-content: center; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.nav-header.scrolled {
  background: rgb(255 255 255 / 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--color-border), var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-white);
  transition: color var(--transition-base), opacity var(--transition-base);
}

.nav-header.scrolled .nav-logo { color: var(--color-primary); }
.nav-logo:hover { opacity: 0.85; }

.nav-logo-icon { flex-shrink: 0; }
.nav-logo-text { letter-spacing: -0.01em; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-link {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgb(255 255 255 / 0.85);
  transition: all var(--transition-fast);
}

.nav-header.scrolled .nav-link { color: var(--color-text-secondary); }

.nav-link:hover {
  color: var(--color-white);
  background: rgb(255 255 255 / 0.12);
}

.nav-header.scrolled .nav-link:hover {
  color: var(--color-primary);
  background: var(--color-bg);
}

.nav-link--cta {
  background: var(--color-white);
  color: var(--color-primary) !important;
  font-weight: 600;
  padding: var(--space-2) var(--space-5);
}

.nav-link--cta:hover {
  background: var(--color-accent) !important;
  color: var(--color-primary-dark) !important;
}

.nav-header.scrolled .nav-link--cta {
  background: var(--color-primary);
  color: var(--color-white) !important;
}

.nav-header.scrolled .nav-link--cta:hover {
  background: var(--color-primary-light) !important;
  color: var(--color-white) !important;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.nav-header.scrolled .nav-toggle-bar { background: var(--color-text); }

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, #0a1628 0%, #0d2958 40%, #0f52ba 100%);
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

/* Grid overlay */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgb(255 255 255 / 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* Glow orbs */
.hero-glow {
  position: absolute;
  border-radius: var(--radius-full);
  filter: blur(80px);
  animation: glow-float 8s ease-in-out infinite;
}

.hero-glow--1 {
  width: 600px;
  height: 600px;
  top: -200px;
  right: -150px;
  background: radial-gradient(circle, rgb(79 195 247 / 0.15) 0%, transparent 70%);
}

.hero-glow--2 {
  width: 400px;
  height: 400px;
  bottom: -100px;
  left: 10%;
  background: radial-gradient(circle, rgb(26 106 224 / 0.2) 0%, transparent 70%);
  animation-delay: -4s;
}

@keyframes glow-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -30px) scale(1.05); }
  66% { transform: translate(-15px, 15px) scale(0.98); }
}

/* Particles */
.hero-particle {
  position: absolute;
  border-radius: var(--radius-full);
  background: rgb(255 255 255 / 0.4);
  animation: particle-float linear infinite;
}

@keyframes particle-float {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100px) scale(1); opacity: 0; }
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-block: var(--space-20);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgb(255 255 255 / 0.1);
  border: 1px solid rgb(255 255 255 / 0.2);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: rgb(255 255 255 / 0.85);
  margin-bottom: var(--space-8);
  backdrop-filter: blur(8px);
  animation: fade-up 0.8s ease forwards;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
  display: flex;
  flex-direction: column;
  font-size: clamp(var(--text-5xl), 10vw, var(--text-7xl));
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: var(--space-6);
  animation: fade-up 0.8s 0.1s ease both;
}

.hero-title-line { display: block; }

.hero-title-accent {
  background: linear-gradient(90deg, var(--color-accent) 0%, #81d4fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl));
  font-weight: 500;
  color: rgb(255 255 255 / 0.7);
  margin-bottom: var(--space-5);
  letter-spacing: 0.01em;
  animation: fade-up 0.8s 0.2s ease both;
}

.hero-description {
  font-size: var(--text-lg);
  color: rgb(255 255 255 / 0.65);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: var(--space-10);
  animation: fade-up 0.8s 0.3s ease both;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-16);
  animation: fade-up 0.8s 0.4s ease both;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  animation: fade-up 0.8s 0.5s ease both;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.hero-stat-value {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
}

.hero-stat-label {
  font-size: var(--text-xs);
  color: rgb(255 255 255 / 0.55);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: rgb(255 255 255 / 0.15);
}

.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgb(255 255 255 / 0.4);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fade-up 1s 0.8s ease both;
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgb(255 255 255 / 0.4), transparent);
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
  0%, 100% { transform: scaleY(1); transform-origin: top; }
  50% { transform: scaleY(0.5); transform-origin: top; }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   SECTIONS (shared)
   ============================================================ */
.section {
  padding-block: var(--section-py);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  background: rgb(15 82 186 / 0.08);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-desc {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 560px;
  margin-inline: auto;
  line-height: 1.7;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--color-bg); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.about-lead {
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}

.about-text {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-5);
}

.about-identity {
  margin-top: var(--space-8);
  padding: var(--space-6);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.about-identity-title {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.about-details { display: flex; flex-direction: column; gap: var(--space-4); }

.about-detail-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-4);
  align-items: start;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.about-detail-row:last-child { border-bottom: none; padding-bottom: 0; }

.about-detail-row dt {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.about-detail-row dd {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 500;
}

/* About Visual */
.about-visual {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-8));
}

.about-card-stack {
  position: relative;
  padding: var(--space-6);
}

.about-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.about-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2xl);
}

.about-card--1 { margin-bottom: var(--space-4); }
.about-card--2 { margin-bottom: var(--space-4); margin-left: var(--space-8); }
.about-card--3 { margin-left: var(--space-4); }

.about-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: rgb(15 82 186 / 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.about-card-icon--2 {
  background: rgb(79 195 247 / 0.1);
  color: var(--color-accent-dark);
}

.about-card-icon--3 {
  background: rgb(16 185 129 / 0.1);
  color: var(--color-success);
}

.about-card-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 2px;
}

.about-card-sub {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.about-location-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  margin-top: var(--space-6);
  margin-left: var(--space-6);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services { background: var(--color-white); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-6);
}

.service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-6);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgb(15 82 186 / 0.2);
}

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

.service-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: rgb(15 82 186 / 0.08);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  transition: background var(--transition-base), color var(--transition-base);
}

.service-card:hover .service-card-icon {
  background: var(--color-primary);
  color: var(--color-white);
}

.service-card-icon--2 { background: rgb(79 195 247 / 0.1); color: #0288d1; }
.service-card-icon--3 { background: rgb(139 92 246 / 0.1); color: #7c3aed; }
.service-card-icon--4 { background: rgb(16 185 129 / 0.1); color: #059669; }
.service-card-icon--5 { background: rgb(245 158 11 / 0.1); color: #d97706; }
.service-card-icon--6 { background: rgb(239 68 68 / 0.1); color: #dc2626; }
.service-card-icon--7 { background: rgb(20 184 166 / 0.1); color: #0d9488; }
.service-card-icon--8 { background: rgb(249 115 22 / 0.1); color: #ea580c; }

.service-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.service-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================================
   TECHNOLOGY
   ============================================================ */
.technology { background: var(--color-bg); }

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

.tech-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-6);
  transition: all var(--transition-base);
}

.tech-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgb(15 82 186 / 0.2);
}

.tech-item-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.tech-item-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tech-item-icon--2 { background: #0288d1; }
.tech-item-icon--3 { background: #0d9488; }
.tech-item-icon--4 { background: #7c3aed; }
.tech-item-icon--5 { background: #ea580c; }

.tech-item-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.tech-item-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-5);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tech-tag {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  background: rgb(15 82 186 / 0.08);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects { background: var(--color-white); }

.projects-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-20) var(--space-8);
  background: var(--color-bg);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-2xl);
}

.projects-placeholder-icon {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.projects-placeholder-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.projects-placeholder-text {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--color-bg); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.contact-info-company {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-1);
}

.contact-info-tagline {
  font-size: var(--text-base);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--space-8);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.contact-detail-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact-detail-icon {
  width: 44px;
  height: 44px;
  background: rgb(15 82 186 / 0.08);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-detail-body { display: flex; flex-direction: column; gap: var(--space-1); }

.contact-detail-label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.contact-detail-value {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.6;
}

.contact-detail-link {
  font-size: var(--text-base);
  color: var(--color-primary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.contact-detail-link:hover { color: var(--color-primary-light); text-decoration: underline; }

.contact-duns {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-5);
}

.contact-duns-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

.contact-duns-value {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 700;
  font-family: var(--font-mono);
}

/* Contact Form */
.contact-form-wrapper {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
}

.contact-form-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.form-group { margin-bottom: var(--space-5); }

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-label span { color: var(--color-error); margin-left: 2px; }

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--color-text-muted); }

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(15 82 186 / 0.12);
  background: var(--color-white);
}

.form-textarea { resize: vertical; min-height: 140px; }

.form-note {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-4);
}

.form-status {
  margin-top: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 500;
  display: none;
}

.form-status.success {
  display: block;
  background: rgb(16 185 129 / 0.1);
  border: 1px solid rgb(16 185 129 / 0.3);
  color: #047857;
}

.form-status.error {
  display: block;
  background: rgb(239 68 68 / 0.1);
  border: 1px solid rgb(239 68 68 / 0.3);
  color: #b91c1c;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: #0a1628;
  color: rgb(255 255 255 / 0.7);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgb(255 255 255 / 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-white);
  margin-bottom: var(--space-3);
  width: fit-content;
  transition: opacity var(--transition-fast);
}

.footer-logo:hover { opacity: 0.8; }
.footer-logo-text { letter-spacing: -0.01em; }

.footer-tagline {
  font-size: var(--text-sm);
  color: rgb(255 255 255 / 0.5);
  margin-bottom: var(--space-5);
}

.footer-address {
  font-size: var(--text-sm);
  line-height: 1.8;
  color: rgb(255 255 255 / 0.55);
  margin-bottom: var(--space-5);
}

.footer-contacts {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: rgb(255 255 255 / 0.65);
  transition: color var(--transition-fast);
}

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

.footer-nav-title {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: var(--space-5);
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-nav-link {
  font-size: var(--text-sm);
  color: rgb(255 255 255 / 0.55);
  transition: color var(--transition-fast);
}

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

.footer-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-info-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-info-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgb(255 255 255 / 0.35);
  font-weight: 600;
}

.footer-info-value {
  font-size: var(--text-sm);
  color: rgb(255 255 255 / 0.65);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-copyright {
  font-size: var(--text-sm);
  color: rgb(255 255 255 / 0.4);
}

.footer-legal {
  font-size: var(--text-sm);
  color: rgb(255 255 255 / 0.35);
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 50;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition-base);
}

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

.back-to-top:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* ============================================================
   INTERSECTION OBSERVER ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  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; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
}

/* Mobile Nav */
@media (max-width: 768px) {
  :root { --section-py: var(--space-16); }

  .nav-toggle { display: flex; }

  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgb(10 22 40 / 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4) var(--space-4) var(--space-6);
    gap: var(--space-1);
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
    border-bottom: 1px solid rgb(255 255 255 / 0.1);
  }

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

  .nav-link {
    padding: var(--space-4);
    border-radius: var(--radius-md);
    color: rgb(255 255 255 / 0.8);
  }

  .nav-link--cta {
    margin-top: var(--space-2);
    text-align: center;
    background: var(--color-primary);
    color: var(--color-white) !important;
  }

  .hero-title { font-size: clamp(3rem, 14vw, 5rem); }
  .hero-stats { gap: var(--space-5); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { justify-content: center; }

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

  .footer-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer-bottom { flex-direction: column; text-align: center; }

  .about-card--2, .about-card--3 { margin-left: 0; }
}

@media (max-width: 480px) {
  .container { padding-inline: var(--space-4); }
  .services-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.75rem; }
  .hero-stats { flex-wrap: wrap; gap: var(--space-4); }
  .hero-stat-divider { display: none; }
  .about-detail-row { grid-template-columns: 1fr; gap: var(--space-1); }
  .contact-form-wrapper { padding: var(--space-6); }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .nav-header, .back-to-top, .hero-scroll-hint { display: none; }
  .hero { min-height: auto; padding: var(--space-12) 0; }
  * { animation: none !important; transition: none !important; }
}