:root {
  --bg-dark: #070b14;
  --bg-dark-2: #0f172a;
  --bg-card-dark: rgba(15, 23, 42, 0.78);
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent-cyan: #06b6d4;
  --accent-purple: #6366f1;
  --accent-amber: #f59e0b;
  --accent-emerald: #10b981;
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #f8fafc;
  --text-light-muted: #94a3b8;
  --border-light: #e2e8f0;
  --border-dark: rgba(148, 163, 184, 0.18);
  --shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.14);
  --shadow-glow: 0 0 35px rgba(37, 99, 235, 0.35);
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Pretendard', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans KR', 'Noto Sans', sans-serif;
  color: var(--text-main);
  background-color: var(--bg-light);
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: break-word;
}

body {
  overflow-x: hidden;
  word-break: keep-all;
}

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

ul {
  list-style: none;
}

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

.container {
  width: 94%;
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 20px;
}

.top-bar .container,
.site-header .container {
  width: 96%;
  max-width: 1580px;
}

/* Top Utility Bar */
.top-bar {
  background: #04070e;
  color: var(--text-light-muted);
  font-size: 0.82rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  padding: 8px 0;
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.top-bar-left span,
.top-bar-right span,
.top-bar-right a {
  white-space: nowrap;
}

.top-bar a:hover {
  color: #fff;
}

.hq-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(37, 99, 235, 0.22);
  color: #60a5fa !important;
  border: 1px solid rgba(96, 165, 250, 0.38);
  padding: 3px 12px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.78rem;
  white-space: nowrap;
}

.hq-link-btn:hover {
  background: var(--primary);
  color: #fff !important;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 11, 20, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-dark);
  transition: var(--transition);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  gap: 16px;
  flex-wrap: nowrap;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  white-space: nowrap;
}

.brand-logo img {
  height: 46px;
  width: auto;
  object-fit: contain;
  background: #ffffff;
  padding: 5px 12px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  display: block;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  white-space: nowrap;
}

.brand-title {
  color: #fff;
  font-weight: 800;
  font-size: 1.24rem;
  letter-spacing: -0.01em;
  line-height: 1.15;
  white-space: nowrap;
}

.brand-sub {
  color: var(--accent-cyan);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-top: 2px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: nowrap;
}

.main-nav a {
  color: #e2e8f0;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 9px 15px;
  border-radius: 8px;
  position: relative;
  white-space: nowrap;
  flex-shrink: 0;
}

.main-nav a:hover,
.main-nav a.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.main-nav a.nav-ai {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.25), rgba(6, 182, 212, 0.25));
  border: 1px solid rgba(6, 182, 212, 0.45);
  color: #38bdf8;
}

.main-nav a.nav-ai:hover,
.main-nav a.nav-ai.active {
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  color: #fff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  white-space: nowrap;
}

/* Language Switcher */
.lang-switcher {
  display: inline-flex;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 3px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 11px;
  border-radius: 999px;
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn:hover {
  color: #fff;
}

.lang-btn.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.4);
}

.mobile-menu-btn {
  display: none;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  font-size: 1.2rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  color: #fff;
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.5);
}

.btn-cyan {
  background: linear-gradient(135deg, #0891b2, #2563eb);
  color: #fff;
  box-shadow: 0 8px 22px rgba(6, 182, 212, 0.3);
}

.btn-cyan:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(6, 182, 212, 0.45);
}

.btn-outline-light {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: #fff;
  transform: translateY(-2px);
}

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

.btn-outline-dark:hover {
  background: var(--primary);
  color: #fff;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
  border-radius: 8px;
}

/* Hero Section */
.hero {
  position: relative;
  background: radial-gradient(circle at 18% 20%, rgba(37, 99, 235, 0.28), transparent 42%),
              radial-gradient(circle at 85% 30%, rgba(6, 182, 212, 0.22), transparent 45%),
              linear-gradient(180deg, #050912 0%, #0b1325 100%);
  color: #fff;
  padding: 84px 0 90px;
  overflow: hidden;
  border-bottom: 1px solid var(--border-dark);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(6, 182, 212, 0.14);
  border: 1px solid rgba(6, 182, 212, 0.4);
  color: #67e8f9;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
  letter-spacing: 0.03em;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22d3ee;
  box-shadow: 0 0 10px #22d3ee;
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: 0.55; }
}

.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.35rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, #60a5fa 0%, #22d3ee 50%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.08rem;
  color: #cbd5e1;
  margin-bottom: 28px;
  max-width: 620px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.hero-tag {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #e2e8f0;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 6px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item strong {
  display: block;
  font-size: 1.65rem;
  font-weight: 800;
  color: #38bdf8;
  line-height: 1.1;
}

.stat-item span {
  font-size: 0.8rem;
  color: var(--text-light-muted);
}

/* Hero Visual Card */
.hero-visual {
  position: relative;
}

.ai-hub-card {
  background: rgba(15, 23, 42, 0.82);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-xl);
  padding: 26px;
  box-shadow: var(--shadow-glow);
  backdrop-filter: blur(16px);
}

.ai-hub-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.window-dots span:nth-child(1) { background: #ef4444; }
.window-dots span:nth-child(2) { background: #f59e0b; }
.window-dots span:nth-child(3) { background: #10b981; }

.ai-arch-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.arch-layer {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 14px 16px;
  transition: var(--transition);
}

.arch-layer:hover {
  border-color: #38bdf8;
  background: rgba(56, 189, 248, 0.08);
}

.arch-layer-highlight {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.22), rgba(6, 182, 212, 0.18));
  border-color: rgba(56, 189, 248, 0.5);
}

.arch-layer-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.arch-layer-badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 99px;
  background: rgba(56, 189, 248, 0.2);
  color: #7dd3fc;
}

.arch-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.arch-pills span {
  font-size: 0.75rem;
  background: rgba(15, 23, 42, 0.75);
  color: #cbd5e1;
  padding: 3px 9px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Section Common */
.section {
  padding: 88px 0;
}

.section-dark {
  background: linear-gradient(180deg, #080f1e 0%, #0f172a 100%);
  color: #fff;
}

.section-white {
  background: var(--bg-white);
}

.section-gray {
  background: var(--bg-light);
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.1);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.section-dark .section-tag {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.14);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.45rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.02rem;
  color: var(--text-muted);
}

.section-dark .section-desc {
  color: var(--text-light-muted);
}

/* AI Core Cards */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.ai-card {
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.ai-card:hover {
  transform: translateY(-4px);
  border-color: #38bdf8;
  box-shadow: 0 16px 40px rgba(6, 182, 212, 0.18);
}

.ai-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.ai-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.28), rgba(6, 182, 212, 0.28));
  border: 1px solid rgba(56, 189, 248, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.ai-badge {
  font-size: 0.75rem;
  font-weight: 700;
  color: #34d399;
  background: rgba(16, 185, 129, 0.14);
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 4px 10px;
  border-radius: 999px;
}

.ai-card h3 {
  font-size: 1.28rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
}

.ai-card p {
  color: #cbd5e1;
  font-size: 0.95rem;
  margin-bottom: 18px;
}

.ai-feature-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
}

.ai-feature-list li {
  font-size: 0.86rem;
  color: #94a3b8;
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-feature-list li::before {
  content: "✓";
  color: #38bdf8;
  font-weight: 800;
}

/* Interactive AI Simulator Box */
.ai-simulator {
  background: #050914;
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}

.ai-sim-header {
  background: rgba(15, 23, 42, 0.95);
  padding: 16px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.ai-sim-body {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 340px;
}

.ai-sim-sidebar {
  background: rgba(15, 23, 42, 0.5);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sim-prompt-btn {
  text-align: left;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #cbd5e1;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.sim-prompt-btn:hover,
.sim-prompt-btn.active {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(6, 182, 212, 0.22));
  border-color: #38bdf8;
  color: #fff;
}

.ai-sim-output {
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.sim-code-box {
  background: #0a101f;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 16px;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 0.83rem;
  color: #7dd3fc;
  overflow-x: auto;
  white-space: pre-wrap;
}

.sim-result-box {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 10px;
  padding: 16px;
  color: #e2e8f0;
  font-size: 0.9rem;
}

/* Solutions Tabs & Showcase */
.solution-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.sol-tab-btn {
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.sol-tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.sol-tab-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.3);
}

.sol-panel {
  display: none;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-md);
}

.sol-panel.active {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 36px;
  align-items: center;
}

.sol-info h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-main);
}

.sol-info p {
  color: var(--text-muted);
  margin-bottom: 20px;
}

.sol-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

.sol-spec-item {
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.86rem;
  font-weight: 600;
}

.sol-screen {
  background: #0f172a;
  padding: 12px;
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
}

.sol-screen img {
  width: 100%;
  border-radius: 8px;
  max-height: 380px;
  object-fit: contain;
  background: #000;
}

/* Hardware Config Cards */
.hw-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.hw-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hw-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.hw-num {
  display: inline-block;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  font-weight: 800;
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.hw-card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.hw-flow {
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: var(--bg-light);
  border: 1px dashed #cbd5e1;
  border-radius: 12px;
  padding: 16px 10px;
  margin: 18px 0;
  gap: 8px;
}

.hw-flow img {
  height: 72px;
  width: auto;
  object-fit: contain;
}

.hw-flow-arrow {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
}

/* Certificates & About Grid */
.about-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.info-table th,
.info-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-light);
  text-align: left;
  font-size: 0.92rem;
}

.info-table th {
  background: #f1f5f9;
  font-weight: 700;
  width: 140px;
  color: var(--text-main);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.cert-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.cert-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.cert-card img {
  height: 180px;
  margin: 0 auto 10px;
  object-fit: contain;
}

.cert-card span {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Client Pills Grid */
.client-region-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.client-box {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.client-box h3 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.client-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.client-badge {
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--text-main);
  transition: var(--transition);
}

.client-badge:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(37, 99, 235, 0.04);
}

/* Page Sub-Hero */
.page-hero {
  background: linear-gradient(135deg, #060b16 0%, #0f172a 60%, #1e293b 100%);
  color: #fff;
  padding: 64px 0;
  border-bottom: 1px solid var(--border-dark);
}

.page-hero h1 {
  font-size: clamp(1.9rem, 3.2vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.page-hero p {
  color: #cbd5e1;
  max-width: 720px;
  font-size: 1.02rem;
}

/* Contact & Footer */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
}

.contact-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
}

.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.contact-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.site-footer {
  background: #04070e;
  color: #94a3b8;
  padding: 64px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid,
  .sol-panel.active,
  .about-split,
  .contact-grid,
  .ai-sim-body {
    grid-template-columns: 1fr;
  }
  .hw-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #070b14;
    flex-direction: column;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-dark);
  }
  .main-nav.open {
    display: flex;
  }
  .mobile-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .ai-grid,
  .client-region-grid,
  .hero-stats,
  .sol-specs,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* Interactive Contact Modal (Email & Phone) */
.i2-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(6, 11, 22, 0.72);
  backdrop-filter: blur(6px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.i2-modal-backdrop.open {
  display: flex;
}

.i2-modal {
  background: #ffffff;
  border-radius: 20px;
  max-width: 560px;
  width: 100%;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  border: 1px solid #e2e8f0;
  overflow: hidden;
  animation: i2ModalPop 0.2s ease-out;
}

@keyframes i2ModalPop {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.i2-modal-header {
  background: linear-gradient(135deg, #060b16 0%, #0f172a 100%);
  color: #fff;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.i2-modal-header h3 {
  font-size: 1.15rem;
  font-weight: 800;
  margin: 0;
  color: #fff;
}

.i2-modal-close {
  background: rgba(255, 255, 255, 0.12);
  border: none;
  color: #fff;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.i2-modal-close:hover {
  background: rgba(255, 255, 255, 0.25);
}

.i2-modal-body {
  padding: 24px;
  color: #0f172a;
}

.i2-contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.i2-contact-row strong {
  display: block;
  font-size: 0.85rem;
  color: #475569;
  margin-bottom: 2px;
}

.i2-contact-row .i2-val {
  font-size: 1.05rem;
  font-weight: 800;
  color: #1d4ed8;
}

.i2-form-group {
  margin-bottom: 12px;
}

.i2-form-group label {
  display: block;
  font-size: 0.84rem;
  font-weight: 700;
  color: #334155;
  margin-bottom: 4px;
}

.i2-form-group input,
.i2-form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 0.92rem;
  font-family: inherit;
}

.i2-form-group textarea {
  min-height: 90px;
  resize: vertical;
}

.i2-modal-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.i2-toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: #0f172a;
  color: #fff;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  border: 1px solid #38bdf8;
  z-index: 10001;
  display: none;
}

.i2-toast.show {
  display: block;
}