/* ============================================
   RAD INFOTECH - Design System & Styles
   ============================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Poppins:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Brand Colors - Derived from Logo */
  --crimson: #E4294B;
  --crimson-dark: #C41E3A;
  --crimson-light: #F04E6A;
  --crimson-glow: rgba(228, 41, 75, 0.3);
  --crimson-subtle: rgba(228, 41, 75, 0.08);
  
  --pink-accent: #F48FB1;
  --pink-light: #F8BBD0;
  --pink-glow: rgba(244, 143, 177, 0.25);

  /* Dark Theme */
  --bg-primary: #0A0A0F;
  --bg-secondary: #111118;
  --bg-tertiary: #1A1A24;
  --bg-card: rgba(26, 26, 36, 0.6);
  --bg-glass: rgba(17, 17, 24, 0.75);
  --bg-glass-hover: rgba(26, 26, 36, 0.85);
  
  /* Text */
  --text-primary: #F5F5F7;
  --text-secondary: #A1A1AA;
  --text-muted: #71717A;
  --text-accent: #E4294B;

  /* Borders */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-light: rgba(255, 255, 255, 0.1);
  --border-accent: rgba(228, 41, 75, 0.3);

  /* Gradients */
  --gradient-crimson: linear-gradient(135deg, #E4294B, #F04E6A, #F48FB1);
  --gradient-dark: linear-gradient(135deg, #0A0A0F, #111118, #1A1A24);
  --gradient-card: linear-gradient(145deg, rgba(26, 26, 36, 0.8), rgba(17, 17, 24, 0.4));
  --gradient-glow: radial-gradient(ellipse at center, rgba(228, 41, 75, 0.15), transparent 70%);
  --gradient-hero: linear-gradient(180deg, rgba(10, 10, 15, 0.3) 0%, rgba(10, 10, 15, 0.9) 80%, #0A0A0F 100%);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.5);
  --shadow-crimson: 0 4px 30px rgba(228, 41, 75, 0.2);
  --shadow-glow: 0 0 40px rgba(228, 41, 75, 0.15);

  /* Spacing */
  --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;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Poppins', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Sizing */
  --nav-height: 90px;
  --max-width: 1280px;
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --border-radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--crimson);
  border-radius: var(--border-radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--crimson-light);
}

/* Selection */
::selection {
  background: var(--crimson);
  color: white;
}

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

ul, ol {
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

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

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

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--crimson);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: var(--space-lg);
  padding: var(--space-sm) var(--space-lg);
  background: var(--crimson-subtle);
  border: 1px solid var(--border-accent);
  border-radius: var(--border-radius-full);
}

.section-label::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--crimson);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.section-title .highlight {
  background: var(--gradient-crimson);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.8;
}

.text-center {
  text-align: center;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

/* --- Animated Background Elements --- */
.bg-gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  z-index: 1001;
}

.nav-logo img {
  max-height: calc(var(--nav-height) - 30px);
  width: auto;
  max-width: 240px;
  object-fit: contain;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.nav-logo-text .rad {
  color: var(--crimson);
}

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

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

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--crimson);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 60%;
}

.nav-cta {
  margin-left: var(--space-md);
  padding: var(--space-sm) var(--space-xl);
  background: var(--crimson);
  color: white;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--border-radius-full);
  transition: all var(--transition-base);
  box-shadow: 0 2px 12px rgba(228, 41, 75, 0.3);
}

.nav-cta:hover {
  background: var(--crimson-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-crimson);
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg .orb-1 {
  width: 600px;
  height: 600px;
  background: var(--crimson);
  top: -200px;
  right: -150px;
  opacity: 0.12;
  animation: float-orb 15s ease-in-out infinite;
}

.hero-bg .orb-2 {
  width: 400px;
  height: 400px;
  background: var(--pink-accent);
  bottom: -100px;
  left: -100px;
  opacity: 0.08;
  animation: float-orb 20s ease-in-out infinite reverse;
}

.hero-bg .orb-3 {
  width: 300px;
  height: 300px;
  background: var(--crimson-light);
  top: 40%;
  left: 30%;
  opacity: 0.06;
  animation: float-orb 18s ease-in-out infinite 3s;
}

@keyframes float-orb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--crimson);
  border-radius: 50%;
  opacity: 0;
  animation: particle-float linear infinite;
}

@keyframes particle-float {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { opacity: 0; transform: translateY(-100px) scale(1); }
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--crimson-subtle);
  border: 1px solid var(--border-accent);
  border-radius: var(--border-radius-full);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--crimson-light);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: var(--space-2xl);
  animation: fadeInUp 0.8s ease-out;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--crimson);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s ease-out 0.15s both;
}

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

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

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 580px;
  margin-bottom: var(--space-2xl);
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.45s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--border-radius-full);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--crimson);
  color: white;
  box-shadow: 0 4px 20px rgba(228, 41, 75, 0.35);
}

.btn-primary:hover {
  background: var(--crimson-light);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(228, 41, 75, 0.45);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-outline {
  border: 1.5px solid var(--border-light);
  color: var(--text-primary);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--crimson);
  color: var(--crimson);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

.btn .icon {
  font-size: 1.1em;
}

.hero-stats {
  display: flex;
  gap: var(--space-3xl);
  margin-top: var(--space-4xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--border-subtle);
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-stat {
  text-align: left;
}

.hero-stat-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

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

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Floating shapes for hero */
.hero-visual {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 45%;
  height: 70%;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-shape {
  position: absolute;
  border: 1px solid var(--border-accent);
  border-radius: var(--border-radius-lg);
  animation: float-shape 8s ease-in-out infinite;
}

.hero-shape-1 {
  width: 300px;
  height: 300px;
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  top: 10%;
  right: 20%;
  animation-delay: 0s;
}

.hero-shape-2 {
  width: 200px;
  height: 200px;
  background: rgba(228, 41, 75, 0.05);
  border-color: rgba(228, 41, 75, 0.15);
  bottom: 15%;
  right: 10%;
  animation-delay: 2s;
}

.hero-shape-3 {
  width: 150px;
  height: 150px;
  background: rgba(244, 143, 177, 0.05);
  border-color: rgba(244, 143, 177, 0.15);
  top: 30%;
  right: 5%;
  animation-delay: 4s;
  border-radius: 50%;
}

@keyframes float-shape {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(3deg); }
}

/* --- About Section --- */
.about {
  background: var(--bg-secondary);
  position: relative;
}

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

.about-image-wrapper {
  position: relative;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
}

.about-image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--border-radius-xl);
  border: 1px solid var(--border-subtle);
}

.about-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(228, 41, 75, 0.1), transparent);
  border-radius: var(--border-radius-xl);
}

.about-image-badge {
  position: absolute;
  bottom: var(--space-xl);
  left: var(--space-xl);
  padding: var(--space-md) var(--space-xl);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-subtle);
}

.about-image-badge .badge-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--crimson);
}

.about-image-badge .badge-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.about-content .section-subtitle {
  margin-bottom: var(--space-2xl);
}

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

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-base);
}

.about-feature:hover {
  border-color: var(--border-accent);
  transform: translateX(8px);
  box-shadow: var(--shadow-glow);
}

.about-feature-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--crimson-subtle);
  border: 1px solid var(--border-accent);
  border-radius: var(--border-radius-sm);
  font-size: 1.4rem;
}

.about-feature-text h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: var(--space-xs);
}

.about-feature-text p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Services Section --- */
.services {
  position: relative;
}

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

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

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.service-card {
  position: relative;
  padding: var(--space-2xl);
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-xl);
  transition: all var(--transition-slow);
  overflow: hidden;
  group: true;
}

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

.service-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-8px);
  box-shadow: var(--shadow-crimson);
}

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

.service-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--crimson-subtle);
  border: 1px solid var(--border-accent);
  border-radius: var(--border-radius-md);
  font-size: 1.8rem;
  margin-bottom: var(--space-xl);
  transition: all var(--transition-base);
}

.service-card:hover .service-icon {
  background: var(--crimson);
  border-color: var(--crimson);
  transform: scale(1.1);
  box-shadow: var(--shadow-crimson);
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.service-tag {
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-fast);
}

.service-card:hover .service-tag {
  border-color: var(--border-accent);
  color: var(--crimson-light);
}

/* --- Why Choose Us Section --- */
.why-us {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.why-us-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.why-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  padding: var(--space-2xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.why-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: var(--crimson);
  transition: height var(--transition-slow);
}

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

.why-card:hover::after {
  height: 100%;
}

.why-card-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--crimson);
  opacity: 0.3;
  line-height: 1;
  min-width: 50px;
}

.why-card h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
}

.why-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Portfolio Section --- */
.portfolio {
  position: relative;
}

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

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

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.portfolio-card {
  position: relative;
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  transition: all var(--transition-slow);
}

.portfolio-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-8px);
  box-shadow: var(--shadow-crimson);
}

.portfolio-preview {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.portfolio-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-card:hover .portfolio-preview img {
  transform: scale(1.08);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(10, 10, 15, 0.8) 100%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-lg);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-visit {
  padding: 8px 20px;
  background: var(--crimson);
  color: white;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--border-radius-full);
  transition: all var(--transition-fast);
}

.portfolio-visit:hover {
  background: var(--crimson-light);
}

.portfolio-info {
  padding: var(--space-xl);
}

.portfolio-category {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--crimson);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: var(--space-sm);
}

.portfolio-info h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.portfolio-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.portfolio-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: 0 var(--space-xl) var(--space-xl);
}

.portfolio-tech span {
  padding: 3px 10px;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-full);
}

/* --- Approach Section --- */
.approach {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.approach-timeline {
  position: relative;
  max-width: 900px;
  margin: var(--space-3xl) auto 0;
}

.approach-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--crimson), var(--pink-accent), transparent);
  transform: translateX(-50%);
}

.approach-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  position: relative;
}

.approach-item:nth-child(even) {
  flex-direction: row-reverse;
  text-align: right;
}

.approach-item-content {
  flex: 1;
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
}

.approach-item-content:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
}

.approach-dot {
  position: absolute;
  left: 50%;
  top: var(--space-xl);
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background: var(--crimson);
  border-radius: 50%;
  border: 3px solid var(--bg-secondary);
  z-index: 1;
  box-shadow: 0 0 0 4px var(--crimson-glow);
}

.approach-item-content h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.approach-item:nth-child(even) .approach-item-content h4 {
  justify-content: flex-end;
}

.approach-item-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.approach-spacer {
  flex: 1;
}

/* --- Who We Serve Section --- */
.audience {
  position: relative;
}

.audience-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.audience-card {
  padding: var(--space-3xl);
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.audience-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200px;
  height: 200px;
  background: var(--gradient-glow);
  border-radius: 50%;
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.audience-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
}

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

.audience-card-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--crimson-subtle);
  border: 1px solid var(--border-accent);
  border-radius: var(--border-radius-lg);
  font-size: 2rem;
  margin-bottom: var(--space-xl);
}

.audience-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.audience-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* --- Contact Section --- */
.contact {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  margin-top: var(--space-3xl);
}

.contact-info h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.contact-info > p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

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

.contact-detail {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.contact-detail-icon {
  width: 50px;
  height: 50px;
  min-width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--crimson-subtle);
  border: 1px solid var(--border-accent);
  border-radius: var(--border-radius-md);
  font-size: 1.3rem;
}

.contact-detail-text h4 {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-detail-text p {
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 500;
}

.contact-detail-text a {
  color: var(--crimson-light);
  transition: color var(--transition-fast);
}

.contact-detail-text a:hover {
  color: var(--crimson);
}

.contact-form-wrapper {
  padding: var(--space-2xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-xl);
  backdrop-filter: blur(10px);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--crimson);
  box-shadow: 0 0 0 3px var(--crimson-glow);
  background: rgba(228, 41, 75, 0.04);
}

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

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23A1A1AA' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.btn-submit {
  width: 100%;
  justify-content: center;
  padding: 16px;
  font-size: 1rem;
  margin-top: var(--space-sm);
}

/* --- Footer --- */
.footer {
  padding: var(--space-4xl) 0 var(--space-xl);
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  position: relative;
}

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

.footer-brand {
  max-width: 320px;
}

.footer-brand .nav-logo {
  margin-bottom: var(--space-lg);
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.footer-socials {
  display: flex;
  gap: var(--space-md);
}

.footer-social {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-sm);
  font-size: 1.1rem;
  transition: all var(--transition-base);
}

.footer-social:hover {
  background: var(--crimson);
  border-color: var(--crimson);
  transform: translateY(-3px);
}

.footer-column h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

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

.footer-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-link:hover {
  color: var(--crimson-light);
  transform: translateX(4px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-xl);
}

.footer-bottom-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--crimson-light);
}

/* --- Animation Classes (Intersection Observer) --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Staggered delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* --- Counter animation --- */
.counter-animated {
  display: inline-block;
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  :root {
    --nav-height: 80px;
  }

  .hero-visual {
    display: none;
  }

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

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

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

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

  .approach-timeline::before {
    left: 24px;
  }

  .approach-item {
    flex-direction: row !important;
    text-align: left !important;
    padding-left: 60px;
  }

  .approach-item:nth-child(even) .approach-item-content h4 {
    justify-content: flex-start;
  }

  .approach-dot {
    left: 24px;
  }

  .approach-spacer {
    display: none;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 70px;
  }

  .nav-logo img {
    max-height: 36px;
    max-width: 140px;
  }

  .container {
    padding: 0 var(--space-lg);
  }

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

  .section-title {
    font-size: clamp(1.6rem, 5vw, 2.4rem);
  }

  .section-subtitle {
    font-size: 0.95rem;
  }

  .section-label {
    font-size: 0.7rem;
    padding: var(--space-xs) var(--space-md);
  }

  /* Mobile Nav */
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-subtle);
    flex-direction: column;
    align-items: flex-start;
    padding: calc(var(--nav-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
    transition: right var(--transition-base);
    z-index: 999;
    gap: var(--space-sm);
    overflow-y: auto;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-link {
    font-size: 1.05rem;
    padding: var(--space-md);
    width: 100%;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: var(--space-md);
    text-align: center;
    width: 100%;
    display: block;
  }

  .nav-toggle {
    display: flex;
  }

  .mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    backdrop-filter: blur(4px);
  }

  .mobile-overlay.active {
    display: block;
  }

  /* Hero */
  .hero-title {
    letter-spacing: -1px;
  }

  .hero-description {
    font-size: 1rem;
  }

  .hero-badge {
    font-size: 0.7rem;
    padding: var(--space-xs) var(--space-md);
  }

  .hero-stats {
    gap: var(--space-xl);
    flex-wrap: wrap;
    margin-top: var(--space-2xl);
  }

  .hero-stat-number {
    font-size: 1.8rem;
  }

  /* Cards */
  .service-card {
    padding: var(--space-xl);
  }

  .why-card {
    padding: var(--space-xl);
  }

  .audience-card {
    padding: var(--space-xl);
  }

  /* Grids */
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

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

  .why-us-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  /* Loader */
  .loader-logo {
    width: 180px;
  }

  /* Back to top */
  .back-to-top {
    width: 40px;
    height: 40px;
    bottom: var(--space-lg);
    right: var(--space-lg);
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  :root {
    --nav-height: 60px;
  }

  .nav-logo img {
    max-height: 28px;
    max-width: 120px;
  }

  .hero-title {
    font-size: 1.75rem;
    letter-spacing: -0.5px;
  }

  .hero-description {
    font-size: 0.9rem;
  }

  .hero-badge {
    font-size: 0.65rem;
  }

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

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .hero-stat-number {
    font-size: 1.5rem;
  }

  .section-title {
    font-size: 1.4rem;
  }

  .why-card-number {
    font-size: 1.8rem;
    min-width: 36px;
  }

  .contact-info h3 {
    font-size: 1.3rem;
  }

  .loader-logo {
    width: 140px;
  }
}

/* --- Smooth Loading --- */
body.loading {
  overflow: hidden;
}

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.loader-logo {
  width: 280px;
  height: auto;
  margin-bottom: var(--space-xl);
  animation: pulse-loader 1.5s ease-in-out infinite;
}

@keyframes pulse-loader {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.95); }
}

.loader-bar {
  width: 200px;
  height: 3px;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius-full);
  overflow: hidden;
  margin: 0 auto;
}

.loader-bar-inner {
  height: 100%;
  width: 40%;
  background: var(--gradient-crimson);
  border-radius: var(--border-radius-full);
  animation: loader-slide 1.2s ease-in-out infinite;
}

@keyframes loader-slide {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}

/* --- Back to Top --- */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--crimson);
  color: white;
  border-radius: var(--border-radius-md);
  font-size: 1.2rem;
  box-shadow: var(--shadow-crimson);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  z-index: 100;
  cursor: pointer;
}

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

.back-to-top:hover {
  background: var(--crimson-light);
  transform: translateY(-4px);
}