/* ============================================
   ROBONEXUS — GLOBAL STYLES
   ============================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #060611;
  --bg2: #0d0d1f;
  --bg3: #12122a;
  --surface: #1a1a35;
  --surface2: #22224a;
  --accent: #6C63FF;
  --accent2: #00d4ff;
  --accent3: #00c48c;
  --text: #e8e8f0;
  --text-muted: #8888aa;
  --border: rgba(108,99,255,0.2);
  --glow: rgba(108,99,255,0.15);
  --font-head: 'Orbitron', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --radius: 12px;
  --nav-h: 72px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

/* UTILITY */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--border);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 64px;
}
.section-header h2 {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-header p {
  color: var(--text-muted);
  font-size: 18px;
}
.center-cta { text-align: center; margin-top: 48px; }

/* BUTTONS */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 14px 32px;
  border-radius: 8px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.btn-primary:hover::before { opacity: 1; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(108,99,255,0.4); }

.btn-ghost {
  display: inline-block;
  background: transparent;
  color: var(--text);
  padding: 14px 32px;
  border-radius: 8px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: all 0.3s;
  cursor: pointer;
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 20px var(--glow);
}

/* ============================================
   NAVIGATION
   ============================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(6,6,17,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon { flex-shrink: 0; }
.logo-text {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.05em;
}
.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 8px;
  margin-left: auto;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 6px;
  transition: all 0.2s;
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); background: var(--surface); }
.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  font-family: var(--font-head);
  font-size: 12px !important;
  letter-spacing: 0.05em;
}
.nav-cta:hover { opacity: 0.9; box-shadow: 0 4px 16px rgba(108,99,255,0.4); }

/* DROPDOWN */
.dropdown { position: relative; }
.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  list-style: none;
  min-width: 200px;
  padding: 8px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
}
.dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu li a {
  display: block;
  padding: 10px 16px !important;
  color: var(--text-muted) !important;
  font-size: 14px;
  border-radius: 6px;
}
.dropdown-menu li a:hover { color: var(--text) !important; background: var(--surface) !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  padding-top: var(--nav-h);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108,99,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,99,255,0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}
.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  animation: float-up linear infinite;
}
@keyframes float-up {
  0% { opacity: 0; transform: translateY(0); }
  10% { opacity: 0.8; }
  90% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-100vh); }
}

.hero > .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 60px;
  position: relative;
  z-index: 1;
}
/* We inline container in hero — fix */
.hero-content {
  flex: 1;
  max-width: 580px;
}
.hero-visual {
  flex: 0 0 auto;
  width: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent2);
  border: 1px solid rgba(0,212,255,0.3);
  background: rgba(0,212,255,0.05);
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease forwards;
}
.hero-title {
  font-family: var(--font-head);
  font-size: clamp(36px, 5.5vw, 68px);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease 0.1s both;
}
.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 36px;
  animation: fadeInUp 0.6s ease 0.2s both;
}
.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  animation: fadeInUp 0.6s ease 0.3s both;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  animation: fadeInUp 0.6s ease 0.4s both;
}
.stat { padding: 0 28px; }
.stat:first-child { padding-left: 0; }
.stat-num {
  display: block;
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
}
.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* ROBOT VISUAL */
.robot-circle-outer {
  width: 360px;
  height: 360px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  animation: rotate-slow 20s linear infinite;
  background: radial-gradient(circle, rgba(108,99,255,0.08) 0%, transparent 70%);
}
.robot-circle-inner {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 1px solid rgba(108,99,255,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(108,99,255,0.05);
  animation: rotate-slow 20s linear infinite reverse;
}
.robot-core { width: 200px; height: 200px; animation: bob 3s ease-in-out infinite; }
.robot-svg { width: 100%; height: 100%; }

@keyframes rotate-slow { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ORBIT RINGS */
.orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(108,99,255,0.3);
  animation: orbit-spin linear infinite;
}
.ring1 { width: 420px; height: 420px; top: -30px; left: -30px; animation-duration: 8s; }
.ring2 { width: 480px; height: 480px; top: -60px; left: -60px; animation-duration: 14s; animation-direction: reverse; }
.ring3 { width: 540px; height: 540px; top: -90px; left: -90px; animation-duration: 20s; }
.orbit-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  position: absolute;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 12px var(--accent);
}
@keyframes orbit-spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   MARQUEE
   ============================================ */
.marquee-bar {
  overflow: hidden;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 24px;
  white-space: nowrap;
  animation: marquee 30s linear infinite;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.marquee-track .dot { color: var(--accent); font-size: 8px; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ============================================
   INDUSTRIES
   ============================================ */
.industries {
  padding: 120px 0;
  background: var(--bg);
}
.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.industry-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.6s ease forwards;
}
.industry-card:nth-child(1) { animation-delay: 0.1s; }
.industry-card:nth-child(2) { animation-delay: 0.2s; }
.industry-card:nth-child(3) { animation-delay: 0.3s; }
.industry-card:nth-child(4) { animation-delay: 0.4s; }
.industry-card:nth-child(5) { animation-delay: 0.5s; }
.industry-card:nth-child(6) { animation-delay: 0.6s; }
.industry-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(108,99,255,0.15);
}
.card-icon {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  color: var(--accent);
  z-index: 2;
  background: rgba(6,6,17,0.7);
  border-radius: 8px;
  padding: 8px;
}
.card-img {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.industry-card:hover .card-img img { transform: scale(1.05); }
.card-body {
  padding: 24px;
}
.card-body h3 {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}
.card-body p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 16px;
  line-height: 1.6;
}
.card-link {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}
.card-link:hover { color: var(--accent2); }

/* ============================================
   HOW IT WORKS
   ============================================ */
.how-it-works {
  padding: 100px 0;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}
.process-step {
  flex: 1;
  text-align: center;
  padding: 0 24px;
}
.step-number {
  font-family: var(--font-mono);
  font-size: 48px;
  font-weight: 700;
  color: rgba(108,99,255,0.15);
  line-height: 1;
  margin-bottom: 16px;
}
.step-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
}
.process-step h3 {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}
.process-step p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}
.process-connector {
  flex: 0 0 auto;
  padding-top: 80px;
}
.connector-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  position: relative;
}
.connector-line::after {
  content: '';
  position: absolute;
  right: 0;
  top: -3px;
  width: 7px;
  height: 7px;
  border-right: 1px solid var(--accent);
  border-top: 1px solid var(--accent);
  transform: rotate(45deg);
}

/* ============================================
   AI HIGHLIGHT
   ============================================ */
.ai-highlight {
  padding: 120px 0;
  background: var(--bg);
}
.ai-highlight-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.ai-text h2 {
  font-family: var(--font-head);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}
.ai-text > p {
  color: var(--text-muted);
  font-size: 17px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.ai-features {
  list-style: none;
  margin-bottom: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.ai-features li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.feat-icon {
  width: 40px;
  height: 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.ai-features strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}
.ai-features p {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0;
}
.tech-diagram {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.tech-diagram img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
  opacity: 0.7;
}
.tech-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6,6,17,0.7) 0%, rgba(108,99,255,0.1) 100%);
}
.tech-node {
  position: absolute;
  background: rgba(6,6,17,0.9);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.node1 { top: 20%; left: 10%; }
.node2 { top: 10%; right: 10%; }
.node3 { bottom: 25%; left: 15%; }
.node4 { bottom: 15%; right: 12%; }

/* ============================================
   IMPACT
   ============================================ */
.impact {
  padding: 100px 0;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.impact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}
.impact-item {
  text-align: center;
  padding: 40px 20px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.impact-item:hover {
  border-color: var(--accent);
  box-shadow: 0 0 30px var(--glow);
  transform: translateY(-4px);
}
.impact-number {
  font-family: var(--font-head);
  font-size: 56px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}
.impact-suffix {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  color: var(--accent2);
  margin-top: 4px;
}
.impact-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 12px;
  text-align: center;
  max-width: 120px;
}

/* ============================================
   ROBOTS PREVIEW
   ============================================ */
.robots-preview {
  padding: 120px 0;
  background: var(--bg);
}
.robots-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.robot-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s;
}
.robot-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(108,99,255,0.15);
}
.robot-card-img {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.robot-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.robot-card:hover .robot-card-img img { transform: scale(1.06); }
.robot-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(6,6,17,0.85);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 4px;
}
.robot-card-body {
  padding: 24px;
}
.robot-card-body h3 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}
.robot-card-body p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 16px;
}

/* ============================================
   EDUCATION
   ============================================ */
.education-teaser {
  padding: 120px 0;
  background: linear-gradient(135deg, var(--bg2) 0%, var(--bg3) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.edu-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.edu-text h2 {
  font-family: var(--font-head);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}
.edu-text > p {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 28px;
}
.edu-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.edu-badges span {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--text-muted);
}
.edu-img img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border);
  object-fit: cover;
  height: 360px;
  display: block;
  opacity: 0.85;
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials {
  padding: 120px 0;
  background: var(--bg);
}
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  transition: all 0.3s;
}
.testimonial-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 32px var(--glow);
}
.quote-icon {
  font-size: 60px;
  font-family: Georgia, serif;
  color: var(--accent);
  opacity: 0.3;
  line-height: 0.5;
  margin-bottom: 20px;
}
.testimonial-card > p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 28px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  color: #fff;
}
.testimonial-author strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}
.testimonial-author span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ============================================
   CTA BANNER
   ============================================ */
.cta-banner {
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(108,99,255,0.15) 0%, rgba(0,212,255,0.05) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.cta-inner h2 {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  margin-bottom: 16px;
}
.cta-inner p {
  color: var(--text-muted);
  font-size: 18px;
  margin-bottom: 40px;
}
.cta-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 80px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  padding-bottom: 60px;
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 16px;
  margin-bottom: 24px;
  line-height: 1.6;
}
.social-links {
  display: flex;
  gap: 12px;
}
.social-links a {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  transition: all 0.2s;
}
.social-links a:hover { border-color: var(--accent); color: var(--accent); }
.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}
.footer-col h4 {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: var(--text);
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--accent); }
.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 { color: var(--text-muted); font-size: 13px; }
.footer-legal { display: flex; gap: 24px; }
.footer-legal a { color: var(--text-muted); text-decoration: none; font-size: 13px; transition: color 0.2s; }
.footer-legal a:hover { color: var(--accent); }

/* ============================================
   PAGE HERO (inner pages)
   ============================================ */
.page-hero {
  padding: calc(var(--nav-h) + 60px) 0 80px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108,99,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,99,255,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
}
.page-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  padding: 0 24px;
}
.page-hero-content h1 {
  font-family: var(--font-head);
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}
.page-hero-content p {
  font-size: 18px;
  color: var(--text-muted);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-highlight-inner { grid-template-columns: 1fr; gap: 48px; }
  .edu-inner { grid-template-columns: 1fr; gap: 48px; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { display: none; }
  .hero-content { max-width: 100%; }
  .process-steps { flex-direction: column; align-items: center; gap: 24px; }
  .process-connector { display: none; }
  .impact-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px;
    gap: 4px;
    align-items: stretch;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-links a { padding: 12px 16px; }
  .dropdown-menu {
    position: static;
    display: block;
    border: none;
    background: var(--bg3);
    padding: 0;
    margin-left: 16px;
    box-shadow: none;
  }
  .industry-grid { grid-template-columns: 1fr; }
  .robots-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { flex-direction: column; gap: 16px; align-items: flex-start; }
  .stat-divider { display: none; }
  .impact-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .impact-grid { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr; }
  .cta-btns { flex-direction: column; align-items: center; }
  .hero-cta-group { flex-direction: column; }
}

/* Inner page styles — reusable */
.inner-section { padding: 80px 0; }
.inner-section:nth-child(even) { background: var(--bg2); }
.inner-section h2 {
  font-family: var(--font-head);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  margin-bottom: 20px;
}
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.two-col img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border);
  display: block;
}
.two-col p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 20px;
}
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; }
}

/* Spec table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
  font-size: 14px;
}
.spec-table th, .spec-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.spec-table th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--surface);
}
.spec-table td { color: var(--text-muted); }
.spec-table tr:hover td { background: var(--surface); color: var(--text); }

/* Tag pills */
.tag { display: inline-block; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 4px 14px; font-size: 12px; color: var(--text-muted); margin: 4px; }

/* Form styles */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  transition: border-color 0.2s;
  outline: none;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--glow);
}
.form-group textarea { min-height: 140px; resize: vertical; }
.form-group select option { background: var(--bg2); }

/* Page active nav highlighting */
.nav-links a[href$="solutions.html"].active,
.nav-links a[href$="robots.html"].active,
.nav-links a[href$="ai-tech.html"].active,
.nav-links a[href$="education.html"].active,
.nav-links a[href$="about.html"].active,
.nav-links a[href$="contact.html"].active {
  color: var(--text) !important;
  background: var(--surface) !important;
}