/* =========================================
   ARCSEN AI — DESIGN SYSTEM & STYLES
   ========================================= */

/* --- CSS Variables --- */
:root {
  --bg-primary: #050B18;
  --bg-secondary: #080f20;
  --bg-card: rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.07);
  --accent-blue: #00cfff;
  --accent-purple: #7b5efb;
  --accent-green: #00e5a0;
  --accent-pink: #ff6b6b;
  --accent-gold: #ffd166;
  --text-primary: #f0f4ff;
  --text-secondary: #8a9bb8;
  --border: rgba(255,255,255,0.08);
  --border-glow: rgba(0,207,255,0.25);
  --font-primary: 'Outfit', sans-serif;
  --font-secondary: 'Inter', sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-glow: 0 0 40px rgba(0,207,255,0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-secondary);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-blue); border-radius: 3px; }

/* --- Layout Utilities --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 100px 0;
}
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 70px;
}
.section-header h2 { font-size: clamp(2rem, 4vw, 2.8rem); font-family: var(--font-primary); font-weight: 700; line-height: 1.2; margin: 10px 0 16px; }
.section-header p { color: var(--text-secondary); font-size: 1.05rem; line-height: 1.7; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-blue);
  background: rgba(0,207,255,0.1);
  border: 1px solid rgba(0,207,255,0.2);
  padding: 5px 14px;
  border-radius: 100px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: #fff;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font-primary);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.btn-primary:hover::before { opacity: 1; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,207,255,0.35); }
.btn-primary span, .btn-primary i { position: relative; z-index: 1; }
.btn-primary i { position: relative; z-index: 1; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border: 1.5px solid rgba(255,255,255,0.2);
  color: var(--text-primary);
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font-primary);
  transition: var(--transition);
}
.btn-ghost:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(0,207,255,0.05);
}
.btn-lg { padding: 17px 34px; font-size: 1rem; }
.btn-full { width: 100%; justify-content: center; border-radius: var(--radius-sm); }

/* --- Animations --- */
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-20px)} }
@keyframes pulse-ring { 0%{transform:scale(1);opacity:0.8} 100%{transform:scale(1.6);opacity:0} }
@keyframes spin-slow { to { transform: rotate(360deg); } }
@keyframes badge-pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }
@keyframes scroll-bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(8px)} }
@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.fade-up { opacity: 0; transform: translateY(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-right { opacity: 0; transform: translateX(-40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-right.visible { opacity: 1; transform: translateX(0); }
.fade-left { opacity: 0; transform: translateX(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-left.visible { opacity: 1; transform: translateX(0); }

/* =========================================
   NAVBAR
   ========================================= */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: all 0.4s ease;
}
#navbar.scrolled {
  background: rgba(5,11,24,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-primary);
  font-size: 1.35rem;
  font-weight: 800;
}
.logo-img {
  height: 40px;
  width: auto;
  display: block;
}
.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
}
.logo-accent { color: var(--accent-blue); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-blue);
  border-radius: 2px;
  transition: width 0.3s ease;
}
.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { width: 100%; }
.nav-cta {
  padding: 10px 22px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: #fff !important;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.88rem;
  font-family: var(--font-primary);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,207,255,0.3); }
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================
   HERO
   ========================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 24px 80px;
}
#particleCanvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.6;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(123,94,251,0.12) 0%, transparent 70%),
              radial-gradient(ellipse 60% 50% at 20% 80%, rgba(0,207,255,0.08) 0%, transparent 60%);
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  flex: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
}
.badge-dot {
  width: 7px;
  height: 7px;
  background: var(--accent-green);
  border-radius: 50%;
  animation: badge-pulse 2s infinite;
}
.hero-headline {
  font-family: var(--font-primary);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 44px;
}
.hero-tech-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-tech-row span { font-size: 0.8rem; color: var(--text-secondary); }
.tech-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tech-tags span {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 100px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 500px;
  z-index: 2;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
}
.orb-1 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(123,94,251,0.3) 0%, transparent 70%);
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  animation: float 8s ease-in-out infinite;
}
.orb-2 {
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(0,207,255,0.25) 0%, transparent 70%);
  bottom: 20%;
  right: 10%;
  animation: float 10s ease-in-out infinite 2s;
}
.orb-3 {
  width: 150px;
  height: 150px;
  background: radial-gradient(circle, rgba(0,229,160,0.2) 0%, transparent 70%);
  top: 10%;
  right: 30%;
  animation: float 7s ease-in-out infinite 1s;
}
.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 14px 20px;
  min-width: 220px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.floating-card i { font-size: 1.6rem; color: var(--accent-blue); }
.floating-card strong { display: block; font-size: 0.88rem; font-weight: 700; }
.floating-card span { font-size: 0.75rem; color: var(--text-secondary); }
.card-1 { top: 10%; left: 5%; animation: float 9s ease-in-out infinite 0s; }
.card-2 { top: 45%; right: 0%; animation: float 11s ease-in-out infinite 1.5s; }
.card-3 { bottom: 12%; left: 10%; animation: float 8s ease-in-out infinite 3s; }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
  color: var(--text-secondary);
  font-size: 0.75rem;
}
.scroll-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-blue);
  border-radius: 50%;
  animation: scroll-bounce 1.8s ease-in-out infinite;
}

/* =========================================
   STATS BAR
   ========================================= */
.stats-bar {
  background: rgba(255,255,255,0.03);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 48px 0;
}
.stats-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: 24px;
  flex-wrap: wrap;
}
.stat-item { text-align: center; }
.stat-number {
  display: block;
  font-family: var(--font-primary);
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 6px;
  font-weight: 500;
}
.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
}

/* =========================================
   SERVICES
   ========================================= */
.services {
  background: radial-gradient(ellipse 100% 60% at 50% 100%, rgba(123,94,251,0.06) 0%, transparent 70%);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  transition: var(--transition);
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bg-card-hover);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: var(--radius);
}
.service-card:hover { transform: translateY(-8px); border-color: rgba(0,207,255,0.2); box-shadow: 0 20px 60px rgba(0,0,0,0.3), var(--shadow-glow); }
.service-card:hover::before { opacity: 1; }
.service-card.featured {
  background: linear-gradient(145deg, rgba(123,94,251,0.12), rgba(0,207,255,0.08));
  border-color: rgba(123,94,251,0.3);
}
.featured-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-purple);
  background: rgba(123,94,251,0.12);
  border: 1px solid rgba(123,94,251,0.3);
  padding: 3px 10px;
  border-radius: 100px;
}
.card-icon {
  width: 56px;
  height: 56px;
  background: color-mix(in srgb, var(--icon-color) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--icon-color) 30%, transparent);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--icon-color);
  margin-bottom: 20px;
  transition: var(--transition);
}
.service-card:hover .card-icon { transform: scale(1.1); }
.service-card h3 {
  font-family: var(--font-primary);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.service-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.65; margin-bottom: 20px; }
.card-features { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.card-features li { display: flex; align-items: center; gap: 8px; font-size: 0.82rem; color: var(--text-secondary); }
.card-features li i { color: var(--accent-green); font-size: 0.7rem; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-blue);
  transition: gap 0.2s ease;
}
.card-link:hover { gap: 10px; }

/* =========================================
   WHY US
   ========================================= */
.why-us {
  background: var(--bg-secondary);
}
.why-us-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.why-us-left h2 {
  font-family: var(--font-primary);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 12px 0 18px;
}
.why-us-left p { color: var(--text-secondary); line-height: 1.75; margin-bottom: 36px; }
.why-numbers { display: flex; gap: 40px; margin-bottom: 36px; }
.why-num span {
  display: block;
  font-family: var(--font-primary);
  font-size: 2.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.why-num p { font-size: 0.85rem; color: var(--text-secondary); margin-top: 4px; }
.feature-item {
  display: flex;
  gap: 18px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
  margin-bottom: 12px;
}
.feature-item:hover { border-color: rgba(0,207,255,0.2); transform: translateX(8px); }
.feature-icon {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, rgba(0,207,255,0.15), rgba(123,94,251,0.15));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent-blue);
  flex-shrink: 0;
}
.feature-item h4 { font-family: var(--font-primary); font-size: 0.98rem; font-weight: 700; margin-bottom: 6px; }
.feature-item p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

/* =========================================
   INDUSTRIES
   ========================================= */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.industry-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.industry-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.industry-card:hover { transform: translateY(-6px); border-color: rgba(0,207,255,0.2); box-shadow: 0 16px 40px rgba(0,0,0,0.25), var(--shadow-glow); }
.industry-card:hover::after { transform: scaleX(1); }
.industry-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(0,207,255,0.12), rgba(123,94,251,0.12));
  border: 1px solid rgba(0,207,255,0.2);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--accent-blue);
  margin: 0 auto 18px;
  transition: var(--transition);
}
.industry-card:hover .industry-icon { transform: scale(1.1); background: linear-gradient(135deg, rgba(0,207,255,0.2), rgba(123,94,251,0.2)); }
.industry-card h4 { font-family: var(--font-primary); font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.industry-card p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6; }

/* =========================================
   PROCESS
   ========================================= */
.process {
  background: var(--bg-secondary);
}
.process-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-top: 40px;
}
.process-line {
  position: absolute;
  top: 56px;
  left: calc(12.5%);
  right: calc(12.5%);
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
  opacity: 0.3;
  z-index: 0;
}
.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}
.step-num {
  position: absolute;
  top: -36px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--accent-blue);
  opacity: 0.5;
}
.step-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  margin: 0 auto 20px;
  position: relative;
  box-shadow: 0 0 0 8px rgba(0,207,255,0.08), 0 0 0 16px rgba(0,207,255,0.04);
}
.process-step h4 { font-family: var(--font-primary); font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; }
.process-step p { font-size: 0.84rem; color: var(--text-secondary); line-height: 1.65; }

/* =========================================
   TESTIMONIALS
   ========================================= */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.testimonial-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,207,255,0.03), rgba(123,94,251,0.03));
  opacity: 0;
  transition: opacity 0.3s ease;
}
.testimonial-card:hover { transform: translateY(-6px); border-color: rgba(0,207,255,0.15); box-shadow: 0 20px 50px rgba(0,0,0,0.25); }
.testimonial-card:hover::before { opacity: 1; }
.quote-icon { font-size: 1.8rem; color: var(--accent-purple); opacity: 0.5; margin-bottom: 16px; }
.stars { display: flex; gap: 4px; color: #ffd166; font-size: 0.82rem; margin-bottom: 16px; }
.testimonial-card p { font-size: 0.9rem; line-height: 1.75; color: var(--text-secondary); margin-bottom: 24px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}
.testimonial-author strong { display: block; font-size: 0.9rem; font-weight: 700; }
.testimonial-author span { font-size: 0.78rem; color: var(--text-secondary); }
.client-logos { text-align: center; }
.client-logos span { font-size: 0.82rem; color: var(--text-secondary); display: block; margin-bottom: 24px; }
.logos-row { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
.logo-item {
  padding: 10px 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition);
}
.logo-item:hover { border-color: rgba(0,207,255,0.25); color: var(--text-primary); }

/* =========================================
   CTA BANNER
   ========================================= */
.cta-banner {
  position: relative;
  overflow: hidden;
  padding: 100px 24px;
  background: radial-gradient(ellipse 80% 80% at 50% 50%, rgba(123,94,251,0.15) 0%, rgba(5,11,24,0) 70%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,207,255,0.04), rgba(123,94,251,0.04));
}
.cta-inner { text-align: center; position: relative; z-index: 1; }
.cta-inner h2 {
  font-family: var(--font-primary);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin: 16px 0 20px;
}
.cta-inner p { font-size: 1.05rem; color: var(--text-secondary); max-width: 520px; margin: 0 auto 40px; }
.cta-actions { display: flex; align-items: center; justify-content: center; gap: 20px; flex-wrap: wrap; }

/* =========================================
   CONTACT
   ========================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}
.contact-info h2 {
  font-family: var(--font-primary);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.25;
  margin: 12px 0 16px;
}
.contact-info p { color: var(--text-secondary); line-height: 1.75; margin-bottom: 36px; }
.contact-details { display: flex; flex-direction: column; gap: 18px; margin-bottom: 36px; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.ci-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, rgba(0,207,255,0.12), rgba(123,94,251,0.12));
  border: 1px solid rgba(0,207,255,0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-blue);
  font-size: 0.95rem;
  flex-shrink: 0;
}
.contact-item strong { display: block; font-size: 0.85rem; font-weight: 700; margin-bottom: 3px; }
.contact-item span { font-size: 0.84rem; color: var(--text-secondary); }
.social-links { display: flex; gap: 12px; }
.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.social-links a:hover { background: rgba(0,207,255,0.1); border-color: rgba(0,207,255,0.3); color: var(--accent-blue); transform: translateY(-3px); }
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
}
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); }
.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-secondary);
  transition: border-color 0.2s ease;
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(138,155,184,0.5); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--accent-blue); box-shadow: 0 0 0 3px rgba(0,207,255,0.1); }
.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg-secondary); }
.form-group textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 0.78rem; color: var(--text-secondary); text-align: center; display: flex; align-items: center; justify-content: center; gap: 6px; }
.form-note i { color: var(--accent-green); }

/* =========================================
   FOOTER
   ========================================= */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 80px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}
.footer-brand p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.7; margin: 18px 0 24px; }
.footer-col h5 {
  font-family: var(--font-primary);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col ul li a,
.footer-col ul li span {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-col ul li a:hover { color: var(--accent-blue); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom p { font-size: 0.82rem; color: var(--text-secondary); }
.footer-legal { display: flex; gap: 24px; }
.footer-legal a { font-size: 0.82rem; color: var(--text-secondary); transition: color 0.2s ease; }
.footer-legal a:hover { color: var(--accent-blue); }

/* =========================================
   RESPONSIVE — TABLET
   ========================================= */
@media (max-width: 1024px) {
  .hero { flex-direction: column; text-align: center; padding: 130px 24px 80px; }
  .hero-content { max-width: 100%; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-tech-row { justify-content: center; }
  .hero-visual { display: none; }
  .why-us-inner { grid-template-columns: 1fr; gap: 48px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* =========================================
   RESPONSIVE — MOBILE
   ========================================= */
@media (max-width: 768px) {
  .nav-links { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(5,11,24,0.97); backdrop-filter: blur(20px); flex-direction: column; justify-content: center; align-items: center; gap: 32px; z-index: 999; }
  .nav-links.open { display: flex; }
  .nav-links .nav-link { font-size: 1.2rem; color: var(--text-primary); }
  .nav-links .nav-cta { font-size: 1rem; padding: 14px 32px; }
  .nav-hamburger { display: flex; z-index: 1000; }
  .services-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: 1fr; }
  .process-track { grid-template-columns: 1fr; gap: 40px; }
  .process-line { display: none; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .why-numbers { flex-wrap: wrap; }
  .stats-bar .container { gap: 32px; }
  .stat-divider { display: none; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-legal { justify-content: center; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 2.4rem; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn-primary,
  .hero-actions .btn-ghost { width: 100%; justify-content: center; }
  .contact-form-wrap { padding: 24px 16px; }
}