/* ============================================================
   GyROAD — Premium Design System
   Concept: 세계 최일류 딥테크 기업의 정밀하고 품격 있는 다크 브랜드 경험
   - 프리미엄 다크 베이스 + 쨍한 고대비 타이포 (최상 시인성 및 가독성)
   - Electric Blue → Sky Blue → Cyan 그라디언트 액센트
   - 테마 토글 스위치(다크 기본 / 라이트 선택) 완벽 지원
   ============================================================ */

:root {
  /* [기본 테마: 프리미엄 다크 모드 (Premium Dark Theme)] */
  --bg: #030712;
  /* 깊고 정돈된 Slate 950 딥 블랙 */
  --bg-soft: #0b0f19;
  /* Slate 900 느낌의 보조 배경 */
  --bg-tint: #0e1424;
  /* 틴트 배경 */
  --bg-navy: #0f1a30;
  --bg-navy-2: #13223e;

  /* Text */
  --ink: #F8FAFC;
  /* 뚜렷한 Slate 50 화이트 (최상 가독성) */
  --ink-soft: #CBD5E1;
  /* Slate 300 (본문 텍스트 시인성 개선) */
  --ink-mute: #94A3B8;
  /* Slate 400 (메타 정보 가독성 보강) */
  --ink-on-dark: #FFFFFF;
  --ink-on-dark-soft: #CBD5E1;

  /* Accent */
  --blue: #38BDF8;
  /* 더 선명하고 쨍한 Sky Blue 400 */
  --blue-deep: #0284C7;
  --violet: #A78BFA;
  --cyan: #22D3EE;
  --mint: #34D399;
  --amber: #FBBF24;
  --red: #F87171;
  --grad:
    radial-gradient(130% 110% at 18% -8%, rgba(255, 255, 255, 0.25), transparent 48%),
    linear-gradient(135deg, #4f46e5 0%, #0284c7 52%, #06b6d4 100%);
  --grad-soft: linear-gradient(135deg, rgba(79, 70, 229, 0.14) 0%, rgba(2, 132, 199, 0.12) 50%, rgba(6, 182, 212, 0.14) 100%);

  /* Lines & surfaces */
  --line: #334155;
  /* Slate 800 보더라인 - 선명도 향상 */
  --line-strong: #475569;
  /* Slate 700 보더라인 */
  --card: #0F172A;
  /* Slate 900 카드 표면 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5), 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 20px -2px rgba(0, 0, 0, 0.6), 0 2px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.05);
  --shadow-blue: 0 8px 28px rgba(56, 189, 248, 0.25);

  /* GNB 캡슐 배경 */
  --gnb-bg: rgba(11, 15, 25, 0.75);
  --gnb-border: rgba(255, 255, 255, 0.08);

  /* Type */
  --font-sans: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
  --font-display: "Sora", "Pretendard Variable", Pretendard, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", Menlo, monospace;

  /* Radius */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-pill: 999px;

  /* Layout */
  --container: 1200px;
  --gnb-h: 72px;
}

/* [라이트 모드 감지 및 프리미엄 라이트 테마 변수] */
[data-theme="light"] {
  --bg: #F8FAFC;
  /* 맑은 Pearl Gray */
  --bg-soft: #FFFFFF;
  /* 순수 화이트 */
  --bg-tint: #F1F5F9;
  /* 슬레이트 연그레이 */
  --bg-navy: #0F172A;
  /* 다크 네이비 포인트 */
  --bg-navy-2: #1E293B;

  --ink: #0F172A;
  /* Deep Slate Navy (높은 가독성) */
  --ink-soft: #475569;
  /* 본문 Slate 600 */
  --ink-mute: #64748B;
  /* 메타 Slate 500 */
  --ink-on-dark: #FFFFFF;
  --ink-on-dark-soft: #E2E8F0;

  --blue: #0284C7;
  /* Sky Blue */
  --blue-deep: #0369A1;
  --violet: #8B5CF6;
  --cyan: #06B6D4;
  --mint: #10B981;
  --amber: #D97706;
  --red: #EF4444;
  --grad:
    radial-gradient(130% 110% at 18% -8%, rgba(255, 255, 255, 0.4), transparent 50%),
    linear-gradient(135deg, #4f46e5 0%, #0284c7 52%, #06b6d4 100%);
  --grad-soft: linear-gradient(135deg, rgba(79, 70, 229, 0.08) 0%, rgba(2, 132, 199, 0.06) 50%, rgba(6, 182, 212, 0.08) 100%);

  --line: #E2E8F0;
  /* Slate 200 */
  --line-strong: #CBD5E1;
  /* Slate 300 */
  --card: #FFFFFF;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05), 0 4px 12px rgba(15, 23, 42, 0.03);
  --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 40px -15px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(15, 23, 42, 0.02);
  --shadow-blue: 0 8px 24px rgba(2, 132, 199, 0.15);

  --gnb-bg: rgba(255, 255, 255, 0.7);
  --gnb-border: rgba(15, 23, 42, 0.08);
}

/* ---------- 라이트 모드 히어로 가독성 & 고급 디자인 시스템 ---------- */
[data-theme="light"] .hero-bg {
  background: linear-gradient(180deg, #edf2f9 0%, var(--bg) 95%);
}

[data-theme="light"] .hero-bg .aurora.a1 {
  background: radial-gradient(circle at 40% 40%, rgba(99, 102, 241, 0.08), rgba(34, 211, 238, 0.05) 55%, transparent 78%);
  opacity: 0.7;
}

[data-theme="light"] .hero-bg .aurora.a2 {
  background: radial-gradient(circle at 60% 50%, rgba(139, 92, 246, 0.06), rgba(244, 63, 94, 0.03) 55%, transparent 78%);
  opacity: 0.7;
}

[data-theme="light"] .grad-text {
  background-image: linear-gradient(100deg, #4f46e5, #1d4ed8 32%, #0891b2 58%, #4f46e5 84%);
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

[data-theme="light"] .page-hero .hero-sub {
  color: #334155;
  /* Slate 700 딥그레이로 명암 대비 확보 */
}

[data-theme="light"] .page-hero .eyebrow {
  color: #4f46e5;
  /* 세련된 인디고 블루 톤으로 가독성 확보 */
}

/* GNB & Footer Logo 스위칭 */
.logo img {
  height: 28px;
  width: auto;
  display: block;
}

.logo .logo-dark {
  display: block;
}

.logo .logo-light {
  display: none;
}

[data-theme="light"] .logo .logo-dark {
  display: none;
}

[data-theme="light"] .logo .logo-light {
  display: block;
}



/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img,
video,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

::selection {
  background: rgba(91, 140, 255, 0.3);
}

/* ---------- Utilities ---------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.grad-text {
  background: linear-gradient(100deg, #93a5fd, #60a5fa 32%, #2dd4ee 58%, #93a5fd 84%);
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shimmer 7s ease-in-out infinite;
}

@keyframes shimmer {

  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

.mono {
  font-family: var(--font-mono);
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0, 0, 0.2, 1), transform 0.7s cubic-bezier(0, 0, 0.2, 1);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

.reveal[data-delay="1"] {
  transition-delay: 0.1s;
}

.reveal[data-delay="2"] {
  transition-delay: 0.2s;
}

.reveal[data-delay="3"] {
  transition-delay: 0.3s;
}

.reveal[data-delay="4"] {
  transition-delay: 0.4s;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ============================================================
   GNB
   ============================================================ */
/* 플로팅 글래스 캡슐 내비게이션 */
.gnb {
  position: fixed;
  inset: 14px 0 auto 0;
  z-index: 100;
  display: flex;
  align-items: center;
  pointer-events: none;
  /* 캡슐 바깥 여백은 클릭 통과 */
}

.gnb-inner {
  pointer-events: auto;
  width: calc(100% - 48px);
  max-width: var(--container);
  margin: 0 auto;
  padding: 9px 10px 9px 22px;
  display: flex;
  align-items: center;
  gap: 32px;
  border-radius: var(--r-pill);
  background: var(--gnb-bg);
  backdrop-filter: blur(22px) saturate(1.6);
  -webkit-backdrop-filter: blur(22px) saturate(1.6);
  border: 1px solid var(--gnb-border);
  box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  transition: background 0.35s, border-color 0.35s, box-shadow 0.35s;
}

/* 상단 그라디언트 헤어라인 */
.gnb-inner::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.6), rgba(34, 211, 238, 0.6), transparent);
  pointer-events: none;
}

.gnb.scrolled .gnb-inner {
  background: var(--gnb-bg);
  border-color: var(--gnb-border);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(59, 108, 255, 0.08);
}

.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
}

.logo-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--grad);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-blue), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.logo em {
  font-style: normal;
  color: var(--blue);
}

.gnb-menu {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.gnb-menu a {
  position: relative;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink-soft);
  transition: color 0.25s, background 0.25s;
}

/* 호버 시 좌→우로 그려지는 그라디언트 언더라인 */
.gnb-menu a::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 5px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0, 0, 0.2, 1);
}

.gnb-menu a:hover {
  color: var(--ink);
}

.gnb-menu a:hover::after {
  transform: scaleX(1);
}

.gnb-menu a.active {
  color: var(--ink);
  background: rgba(15, 23, 42, 0.05);
}

[data-theme="dark"] .gnb-menu a.active {
  background: rgba(255, 255, 255, 0.06);
}

.gnb-menu a.active::after {
  transform: scaleX(1);
}

/* 테마 토글 버튼 스타일 */
.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s;
  pointer-events: auto;
  margin-left: 4px;
}

.theme-toggle:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: scale(1.05);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.theme-toggle .sun {
  display: none;
}

.theme-toggle .moon {
  display: block;
}

[data-theme="dark"] .theme-toggle .sun {
  display: block;
}

[data-theme="dark"] .theme-toggle .moon {
  display: none;
}

.gnb-cta {
  margin-left: 10px;
  padding: 11px 24px;
  border-radius: var(--r-pill);
  background: var(--grad);
  color: #fff;
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: 0 4px 20px rgba(59, 108, 255, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transition: transform 0.25s, box-shadow 0.25s, filter 0.25s;
}

.gnb-cta:hover {
  transform: translateY(-1px);
  filter: brightness(1.12);
  box-shadow: 0 8px 30px rgba(59, 108, 255, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.gnb-burger {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.gnb-burger span {
  width: 17px;
  height: 1.5px;
  background: #e6ecf6;
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.gnb-burger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.gnb-burger.open span:nth-child(2) {
  opacity: 0;
}

.gnb-burger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  top: calc(var(--gnb-h) + 8px);
  left: 20px;
  right: 20px;
  z-index: 99;
  background: rgba(10, 16, 30, 0.92);
  backdrop-filter: blur(22px) saturate(1.6);
  -webkit-backdrop-filter: blur(22px) saturate(1.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 14px 16px 18px;
  display: none;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  padding: 14px 16px;
  font-size: 16.5px;
  font-weight: 600;
  border-radius: 14px;
  color: rgba(210, 221, 238, 0.85);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.mobile-menu .gnb-cta {
  margin: 12px 0 0;
  text-align: center;
  color: #fff;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding: calc(var(--gnb-h) + 88px) 0 96px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: linear-gradient(180deg, #0b1226 0%, var(--bg) 76%);
}

/* AI aurora — 부유하는 그라디언트 블롭 */
.hero-bg .aurora {
  position: absolute;
  width: 56vw;
  height: 56vw;
  max-width: 820px;
  max-height: 820px;
  border-radius: 50%;
  filter: blur(76px);
  opacity: 0.42;
  pointer-events: none;
  will-change: transform;
}

.hero-bg .aurora.a1 {
  top: -24%;
  right: -12%;
  background: radial-gradient(circle at 40% 40%, rgba(15, 194, 228, 0.34), rgba(124, 77, 232, 0.2) 55%, transparent 78%);
  animation: aurora-drift 16s ease-in-out infinite;
}

.hero-bg .aurora.a2 {
  top: 6%;
  left: -20%;
  background: radial-gradient(circle at 60% 50%, rgba(47, 90, 232, 0.3), rgba(139, 92, 246, 0.16) 55%, transparent 78%);
  animation: aurora-drift 20s ease-in-out infinite reverse;
}

@keyframes aurora-drift {

  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }

  33% {
    transform: translate(-4%, 5%) scale(1.08);
  }

  66% {
    transform: translate(3%, -4%) scale(0.95);
  }
}

/* Neural network 장식 라인 */
.neural {
  position: absolute;
  inset: auto 0 0 0;
  width: 100%;
  height: 62%;
  opacity: 0.5;
  pointer-events: none;
}

.neural line {
  stroke: url(#neural-grad);
  stroke-width: 1;
  opacity: 0.35;
}

.neural circle {
  fill: #7c3aed;
  opacity: 0.35;
}

.neural circle.hub {
  fill: #00b8d9;
  opacity: 0.5;
  animation: node-pulse 3.2s ease-in-out infinite;
}

.neural circle.hub:nth-of-type(odd) {
  animation-delay: 1.6s;
}

@keyframes node-pulse {

  0%,
  100% {
    opacity: 0.25;
  }

  50% {
    opacity: 0.7;
  }
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(70% 60% at 50% 0%, #000 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 0%, #000 0%, transparent 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 28px;
}

.badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(6, 185, 143, 0.15);
}

/* 타이핑 라인 (히어로 상단 모노 텍스트) */
.type-line {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--violet);
  margin-bottom: 18px;
  min-height: 20px;
}

.type-line .caret {
  display: inline-block;
  width: 8px;
  height: 15px;
  margin-left: 4px;
  background: var(--cyan);
  vertical-align: -2px;
  animation: caret-blink 0.9s step-end infinite;
}

@keyframes caret-blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.4vw, 55px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 800;
  word-break: keep-all;
}

.hero-sub {
  margin-top: 24px;
  font-size: 19px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 520px;
  word-break: keep-all;
}

.hero-sub strong {
  color: var(--ink);
  font-weight: 700;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: var(--r-pill);
  font-size: 16px;
  font-weight: 700;
  border: none;
  transition: transform 0.25s cubic-bezier(0, 0, 0.2, 1), box-shadow 0.25s, background 0.25s, color 0.25s, border-color 0.25s;
}

.btn-primary {
  background: var(--grad);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow-blue), inset 0 1px 0 rgba(255, 255, 255, 0.28), inset 0 -10px 18px rgba(5, 12, 34, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.08) saturate(1.05);
  box-shadow: 0 14px 40px rgba(59, 108, 255, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.3), inset 0 -10px 18px rgba(5, 12, 34, 0.28);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line-strong);
}

.btn-ghost:hover {
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-dark {
  background: var(--ink);
  color: #fff;
}

.btn-dark:hover {
  background: var(--blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-blue);
}

.btn .arr {
  transition: transform 0.25s;
}

.btn:hover .arr {
  transform: translateX(3px);
}

.hero-trust {
  display: flex;
  gap: 28px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.hero-trust div {
  font-size: 13.5px;
  color: var(--ink-mute);
  font-weight: 600;
}

.hero-trust b {
  display: block;
  font-family: var(--font-mono);
  font-size: 21px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Live data panel (hero visual) */
.data-panel {
  position: relative;
  background: var(--bg-navy);
  border-radius: var(--r-lg);
  padding: 28px;
  color: var(--ink-on-dark);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.data-panel::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(0, 184, 217, 0.5), transparent 40%, transparent 70%, rgba(91, 140, 255, 0.4));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* AI 스캔라인 — 데이터 패널 위를 주기적으로 훑는 광선 */
.data-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, transparent 0%, rgba(34, 211, 238, 0.06) 48%, rgba(34, 211, 238, 0.14) 50%, rgba(34, 211, 238, 0.06) 52%, transparent 100%);
  background-size: 100% 300%;
  animation: scanline 5.5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes scanline {
  0% {
    background-position: 0 130%;
  }

  55%,
  100% {
    background-position: 0 -130%;
  }
}

.dp-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.dp-head .title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ink-on-dark-soft);
  text-transform: uppercase;
}

.dp-live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #4ade80;
  letter-spacing: 0.1em;
}

.dp-live::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4ade80;
  animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.5);
  }

  50% {
    opacity: 0.6;
    box-shadow: 0 0 0 6px rgba(74, 222, 128, 0);
  }
}

.dp-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.dp-cell {
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 14px;
  padding: 16px 18px;
}

.dp-cell .k {
  font-size: 12px;
  color: var(--ink-on-dark-soft);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.dp-cell .v {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  margin-top: 4px;
  letter-spacing: -0.02em;
}

.dp-cell .v small {
  font-size: 13px;
  color: var(--ink-on-dark-soft);
  font-weight: 500;
  margin-left: 3px;
}

.dp-cell .v.cyan {
  color: #22d3ee;
}

.dp-cell .v.mint {
  color: #34d399;
}

.dp-brake {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(52, 211, 153, 0.08);
  border: 1px solid rgba(52, 211, 153, 0.25);
  border-radius: 14px;
  padding: 15px 18px;
}

.dp-brake .label {
  font-size: 13px;
  font-weight: 700;
  color: #34d399;
  letter-spacing: 0.02em;
}

.dp-brake .volt {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: #34d399;
}

.dp-wave {
  margin-top: 16px;
  height: 64px;
}

.dp-wave svg {
  width: 100%;
  height: 100%;
}

.dp-wave .grid-line {
  stroke: rgba(255, 255, 255, 0.06);
  stroke-width: 1;
}

.dp-wave .wave {
  fill: none;
  stroke: #22d3ee;
  stroke-width: 2;
  stroke-linecap: round;
}

.dp-wave .wave-2 {
  fill: none;
  stroke: rgba(52, 211, 153, 0.8);
  stroke-width: 2;
  stroke-dasharray: 4 5;
}

.dp-foot {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-on-dark-soft);
  display: flex;
  justify-content: space-between;
}

.float-chip {
  position: absolute;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-md);
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 9px;
  animation: floaty 5s ease-in-out infinite;
}

.float-chip .ic {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  font-size: 15px;
  background: var(--grad-soft);
  color: var(--blue);
}

.float-chip small {
  display: block;
  font-weight: 500;
  color: var(--ink-mute);
  font-size: 11.5px;
}

.chip-1 {
  top: -22px;
  left: -34px;
  animation-delay: 0s;
}

.chip-2 {
  bottom: -20px;
  right: -20px;
  animation-delay: 2.4s;
}

@keyframes floaty {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-9px);
  }
}

/* ---------- Tech ticker (마퀴 밴드) ---------- */
.ticker {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-navy);
  overflow: hidden;
  padding: 15px 0;
  position: relative;
}

.ticker::before,
.ticker::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 90px;
  z-index: 1;
  pointer-events: none;
}

.ticker::before {
  left: 0;
  background: linear-gradient(90deg, var(--bg-navy), transparent);
}

.ticker::after {
  right: 0;
  background: linear-gradient(-90deg, var(--bg-navy), transparent);
}

.ticker-track {
  display: flex;
  gap: 48px;
  width: max-content;
  animation: ticker-scroll 30s linear infinite;
}

.ticker-track span {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: #8fa3bd;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 48px;
}

.ticker-track span::after {
  content: "◆";
  font-size: 7px;
  color: #22d3ee;
  opacity: 0.7;
}

@keyframes ticker-scroll {
  to {
    transform: translateX(-50%);
  }
}

/* ============================================================
   Sections
   ============================================================ */
.section {
  padding: 104px 0;
}

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

.section.tint {
  background: linear-gradient(180deg, var(--bg-tint), var(--bg-soft));
}

.sec-head {
  max-width: 720px;
  margin-bottom: 64px;
}

.sec-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 18px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad);
}

.sec-head.center .eyebrow::after {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad);
}

.sec-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.6vw, 40px);
  line-height: 1.22;
  letter-spacing: -0.025em;
  font-weight: 800;
  word-break: keep-all;
}

.sec-sub {
  margin-top: 18px;
  font-size: 17.5px;
  color: var(--ink-soft);
  line-height: 1.75;
  word-break: keep-all;
}

/* ---------- Pipeline (value prop) ---------- */
.pipeline {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 20px;
  align-items: stretch;
}

.pipe-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.pipe-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(91, 140, 255, 0.3);
}

.pipe-card::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.3s;
}

.pipe-card:hover::after {
  opacity: 1;
}

.pipe-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.1em;
}

.pipe-card .ic {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: var(--grad-soft);
  display: grid;
  place-items: center;
  margin: 18px 0 20px;
  color: var(--blue);
}

.pipe-card .ic svg {
  width: 26px;
  height: 26px;
}

.pipe-card h3 {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.pipe-card p {
  margin-top: 12px;
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.pipe-arrow {
  display: grid;
  place-items: center;
  color: var(--line-strong);
}

.pipe-arrow svg {
  width: 28px;
  height: 28px;
}

/* ---------- Problem / Solution ---------- */
.ps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.ps-card {
  border-radius: var(--r-lg);
  padding: 44px 40px;
}

.ps-card.problem {
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.ps-card.solution {
  background: var(--bg-navy);
  color: var(--ink-on-dark);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.ps-card.solution::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -160px;
  top: -160px;
  background: radial-gradient(circle, rgba(0, 184, 217, 0.22), transparent 70%);
  pointer-events: none;
}

.ps-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  margin-bottom: 24px;
}

.problem .ps-tag {
  background: rgba(229, 72, 77, 0.08);
  color: var(--red);
  border: 1px solid rgba(229, 72, 77, 0.25);
}

.solution .ps-tag {
  background: rgba(0, 184, 217, 0.12);
  color: #22d3ee;
  border: 1px solid rgba(0, 184, 217, 0.35);
}

.ps-card h3 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.ps-card>p {
  margin-top: 14px;
  font-size: 15.5px;
  line-height: 1.75;
}

.problem>p {
  color: var(--ink-soft);
}

.solution>p {
  color: var(--ink-on-dark-soft);
}

.ps-list {
  margin-top: 28px;
  display: grid;
  gap: 14px;
}

.ps-list li {
  display: flex;
  gap: 13px;
  align-items: flex-start;
  padding: 16px 18px;
  border-radius: 14px;
  font-size: 15px;
  line-height: 1.6;
}

.problem .ps-list li {
  background: var(--bg-soft);
  color: var(--ink-soft);
}

.problem .ps-list .mk {
  color: var(--red);
  font-weight: 800;
  flex: none;
}

.solution .ps-list li {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.07);
  color: #dbe4f0;
}

.solution .ps-list .mk {
  color: #34d399;
  font-weight: 800;
  flex: none;
}

.ps-list b {
  font-weight: 700;
}

.problem .ps-list b {
  color: var(--ink);
}

.solution .ps-list b {
  color: #fff;
}

/* ---------- Stats band ---------- */
.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px 30px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.stat-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad);
}

.stat-num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 3.1vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.15;
}

.stat-label {
  margin-top: 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.stat-desc {
  margin-top: 5px;
  font-size: 13px;
  color: var(--ink-mute);
  line-height: 1.55;
}

/* ---------- Product highlight ---------- */
.product-wrap {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: center;
}

.product-visual {
  position: relative;
  background: linear-gradient(150deg, #0b1526 0%, #14284a 100%);
  border-radius: var(--r-lg);
  aspect-ratio: 16 / 9;
  /* 원본 영상(1920×1080) 비율과 일치 — 크롭 방지 */
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.product-visual video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0.95;
}

.product-visual .pv-tag {
  position: absolute;
  left: 20px;
  top: 20px;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  background: rgba(11, 21, 38, 0.6);
  backdrop-filter: blur(8px);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.feat-list {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

.feat-item {
  display: flex;
  gap: 16px;
  padding: 20px 22px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.feat-item:hover {
  transform: translateX(6px);
  border-color: rgba(91, 140, 255, 0.35);
  box-shadow: var(--shadow-md);
}

.feat-item .ic {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  background: var(--grad-soft);
  color: var(--blue);
  display: grid;
  place-items: center;
}

.feat-item .ic svg {
  width: 22px;
  height: 22px;
}

.feat-item h4 {
  font-size: 16.5px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.feat-item p {
  font-size: 14px;
  color: var(--ink-soft);
  margin-top: 4px;
  line-height: 1.65;
}

.tag-patent {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--amber);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 3px 9px;
  border-radius: var(--r-pill);
}

.price-line {
  margin-top: 30px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding: 22px 26px;
  border-radius: var(--r-md);
  background: var(--grad-soft);
  border: 1px solid rgba(91, 140, 255, 0.15);
}

.price-line .price {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: -0.02em;
}

.price-line .cond {
  font-size: 14px;
  color: var(--ink-soft);
  font-weight: 600;
}

.price-line .cond b {
  color: var(--mint);
}

/* ---------- Use case cards ---------- */
.uc-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.uc-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 28px 22px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  display: block;
}

.uc-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(91, 140, 255, 0.3);
}

.uc-card .ic {
  width: 46px;
  height: 46px;
  border-radius: 13px;
  background: var(--grad-soft);
  color: var(--blue);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}

.uc-card .ic svg {
  width: 23px;
  height: 23px;
}

.uc-card h4 {
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.uc-card p {
  margin-top: 7px;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.uc-card .more {
  margin-top: 14px;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  border-radius: var(--r-lg);
  background: var(--bg-navy);
  border: 1px solid rgba(255, 255, 255, 0.09);
  padding: 88px 40px;
  text-align: center;
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(45% 70% at 20% 100%, rgba(91, 140, 255, 0.35), transparent 70%),
    radial-gradient(45% 70% at 80% 0%, rgba(0, 184, 217, 0.28), transparent 70%);
  pointer-events: none;
}

.cta-band>* {
  position: relative;
}

.cta-band h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.cta-band p {
  margin: 18px auto 0;
  font-size: 17px;
  color: var(--ink-on-dark-soft);
  max-width: 520px;
}

.cta-band .hero-actions {
  justify-content: center;
}

.cta-band .btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}

.cta-band .btn-ghost:hover {
  border-color: #fff;
  color: #fff;
}

/* ============================================================
   6-AXIS IMU HUD — 모바일 앱 대시보드의 글래스 HUD를 웹으로 재현
   (앱 컬러 동일: safe #18D84B / caution #FFB020 / danger #FF4D4F)
   ============================================================ */
.imu-section {
  position: relative;
  color: #fff;
  padding: 116px 0 120px;
  overflow: hidden;
  background: radial-gradient(120% 95% at 28% 0%, #1b2347 0%, #0a0e1a 55%, #05070f 100%);
}

.imu-section::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: 52px 52px;
  mask-image: radial-gradient(75% 65% at 50% 40%, #000, transparent);
  -webkit-mask-image: radial-gradient(75% 65% at 50% 40%, #000, transparent);
  pointer-events: none;
}

.imu-section .sec-head {
  position: relative;
}

.imu-section .sec-title {
  color: #fff;
}

.imu-section .sec-sub {
  color: #a8b6c9;
}

.imu-section .eyebrow {
  color: #22d3ee;
}

.imu-hud {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.imu-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.18em;
  transition: color 0.4s;
}

.imu-status .live {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  letter-spacing: 0.14em;
  animation: pulse 1.4s ease-in-out infinite;
}

.imu-status .live::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.imu-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.imu-card {
  position: relative;
  border-radius: 22px;
  padding: 18px 20px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 0 30px -8px rgba(255, 255, 255, 0.08);
  transition: border-color 0.5s, box-shadow 0.5s;
}

.imu-card .t {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: #8fa0c8;
}

.imu-card .body {
  flex: 1;
  position: relative;
}

.imu-card .foot {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

/* ATTITUDE — 3D 차체 */
.att-stage {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  perspective: 620px;
}

.att-rings {
  position: absolute;
  inset: 0;
}

.att-car {
  width: 36%;
  max-width: 116px;
  transform-style: preserve-3d;
  will-change: transform;
  filter: drop-shadow(0 0 10px rgba(59, 108, 255, 0.4)) drop-shadow(0 16px 30px rgba(3, 7, 18, 0.7));
  transition: filter 0.4s;
}

.imu-hud.braking .att-car {
  filter: drop-shadow(0 0 12px rgba(255, 77, 79, 0.55)) drop-shadow(0 16px 30px rgba(3, 7, 18, 0.7));
}

/* 와이어프레임 라인워크 (240×400 탑뷰 viewBox 스케일 기준) */
.att-car .wf {
  fill: none;
  stroke: url(#wf-grad);
  stroke-width: 2.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.att-car .wf.dim {
  stroke: rgba(148, 178, 230, 0.5);
  stroke-width: 1.5;
}

.att-car .wf.fine {
  stroke: rgba(148, 178, 230, 0.32);
  stroke-width: 1.1;
}

/* X-ray 내부 투시 메쉬 (파워트레인 · 콕핏) */
.att-car .mesh {
  fill: none;
  stroke: rgba(120, 190, 255, 0.32);
  stroke-width: 1;
  stroke-linecap: round;
}

/* 휠: 블루 네온 타이어 + 앰버 브레이크 디스크 슬리버 */
.att-car .tire {
  fill: rgba(8, 16, 34, 0.55);
  stroke: rgba(96, 156, 255, 0.8);
  stroke-width: 2.2;
  filter: drop-shadow(0 0 5px rgba(64, 130, 255, 0.5));
}

.att-car .rim {
  fill: none;
  stroke: url(#hub-grad);
  stroke-width: 2.6;
  stroke-linecap: round;
  filter: drop-shadow(0 0 4px rgba(255, 145, 35, 0.75));
}

/* 팩트박스 유닛 (X-ray 속 시안 글로우 박스) */
.att-car .fbox rect {
  fill: rgba(34, 211, 238, 0.12);
  stroke: #22d3ee;
  stroke-width: 1.2;
}

.att-car .fbox path {
  stroke: #22d3ee;
  stroke-width: 1.2;
  stroke-linecap: round;
}

.att-car .fbox {
  filter: drop-shadow(0 0 5px rgba(34, 211, 238, 0.8));
  animation: node-pulse 3.2s ease-in-out infinite;
}

.att-car .body-fill {
  fill: url(#sheen-grad);
  stroke: none;
}

.att-car .canopy {
  fill: url(#glass-grad);
  stroke: rgba(148, 190, 255, 0.55);
  stroke-width: 1.8;
}

.att-car .wf.lamp {
  stroke: #dcebff;
  stroke-width: 2.4;
  opacity: 0.9;
  filter: drop-shadow(0 0 4px rgba(220, 235, 255, 0.6));
}

.att-car .node circle {
  fill: #22d3ee;
}

.att-car .node circle:nth-child(odd) {
  animation: node-pulse 3.2s ease-in-out infinite;
}

/* 아웃라인을 따라 순회하는 스캔 하이라이트 */
.att-car .wf-scan {
  fill: none;
  stroke: #ffffff;
  stroke-width: 2.8;
  stroke-linecap: round;
  stroke-dasharray: 40 560;
  animation: wf-scan 4.6s linear infinite;
  opacity: 0.9;
  filter: drop-shadow(0 0 4px rgba(34, 211, 238, 0.9));
}

@keyframes wf-scan {
  to {
    stroke-dashoffset: -600;
  }
}

.imu-hud.braking .att-car .wf-scan {
  stroke: #ff8a8c;
  filter: drop-shadow(0 0 5px rgba(255, 77, 79, 0.9));
}

.att-car .brake-l {
  fill: none;
  stroke: #ff4d4f;
  stroke-width: 4.2;
  stroke-linecap: round;
  opacity: 0;
  transition: opacity 0.15s;
  filter: drop-shadow(0 0 5px rgba(255, 77, 79, 0.95));
}

.imu-hud.braking .att-car .brake-l {
  opacity: 1;
}

/* G-FORCE 캔버스 */
.gforce-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* YAW + 메트릭 패널 */
.imu-panel {
  margin-top: 16px;
  border-radius: 22px;
  padding: 20px 24px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  transition: border-color 0.5s;
}

.yaw-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.yaw-row .k {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: #8fa0c8;
  flex: none;
}

.yaw-row .v {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  min-width: 84px;
  text-align: right;
  flex: none;
}

.yaw-track {
  flex: 1;
  height: 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.07);
  position: relative;
  overflow: hidden;
}

.yaw-track .mid {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255, 255, 255, 0.3);
}

.yaw-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  border-radius: 4px;
  background: #18d84b;
  transition: background 0.4s;
}

.imu-metrics {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.imu-metrics .m .k {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  color: #8fa0c8;
  font-weight: 600;
}

.imu-metrics .m .v {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-top: 3px;
}

/* 위험운전행동 10종 칩 */
.risk-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  justify-content: center;
  margin-top: 34px;
}

.risk-chips span {
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  color: #8fa0c8;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.35s;
}

.risk-chips span.hit {
  color: #05070f;
  background: #ffb020;
  border-color: #ffb020;
  box-shadow: 0 0 22px rgba(255, 176, 32, 0.5);
  transform: translateY(-2px);
}

.risk-chips span.hit.danger {
  background: #ff4d4f;
  border-color: #ff4d4f;
  box-shadow: 0 0 22px rgba(255, 77, 79, 0.55);
}

.imu-note {
  margin-top: 26px;
  text-align: center;
  font-size: 13.5px;
  color: #6b7a95;
}

/* 히어로 속도 게이지 */
.dp-cell.gauge {
  position: relative;
}

.dp-gauge {
  position: absolute;
  right: 12px;
  top: 12px;
  width: 54px;
  height: 32px;
}

.dp-gauge .track {
  stroke: rgba(255, 255, 255, 0.1);
}

.dp-gauge .fill {
  stroke: #22d3ee;
  transition: stroke-dashoffset 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================
   Sub-page hero
   ============================================================ */
.page-hero {
  position: relative;
  padding: calc(var(--gnb-h) + 76px) 0 72px;
  overflow: hidden;
}

.page-hero .hero-bg {
  z-index: -1;
}

.page-hero .eyebrow {
  justify-content: center;
}

.page-hero .eyebrow::after {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad);
}

.page-hero-inner {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 4.4vw, 56px);
  line-height: 1.16;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.page-hero .hero-sub {
  margin: 22px auto 0;
  max-width: 640px;
  text-align: center;
}

/* ---------- Tabs ---------- */
.tabs {
  display: inline-flex;
  gap: 6px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  padding: 6px;
  box-shadow: var(--shadow-sm);
  margin: 40px auto 0;
  flex-wrap: wrap;
  justify-content: center;
}

.tab-btn {
  padding: 11px 24px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  background: transparent;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-soft);
  transition: background 0.25s, color 0.25s, box-shadow 0.25s;
}

.tab-btn:hover {
  color: var(--ink);
}

.tab-btn.active {
  background: var(--grad);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 20px rgba(59, 108, 255, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.3), inset 0 -8px 14px rgba(5, 12, 34, 0.25);
  text-shadow: 0 1px 2px rgba(5, 12, 34, 0.4);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeUp 0.5s cubic-bezier(0, 0, 0.2, 1);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Spec table ---------- */
.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: stretch;
}

.spec-visual {
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, #0b1526, #16294d);
  display: grid;
  place-items: center;
  padding: 40px;
  color: #fff;
  position: relative;
  overflow: hidden;
  min-height: 380px;
  box-shadow: var(--shadow-lg);
}

.spec-visual .device {
  width: 210px;
  height: 140px;
  border-radius: 20px;
  background: linear-gradient(160deg, #1e3a66, #0e1c33);
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  position: relative;
}

.spec-visual .device::before {
  content: "FACTBOX";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.3em;
  color: #22d3ee;
}

.spec-visual .device::after {
  content: "";
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 44px;
  height: 4px;
  border-radius: 4px;
  background: rgba(34, 211, 238, 0.5);
  box-shadow: 0 0 14px rgba(34, 211, 238, 0.8);
}

.spec-visual .orbit {
  position: absolute;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  animation: spin 26s linear infinite;
}

.orbit.o1 {
  width: 300px;
  height: 300px;
}

.orbit.o2 {
  width: 430px;
  height: 430px;
  animation-duration: 40s;
  animation-direction: reverse;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spec-table {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

.spec-table table {
  width: 100%;
  border-collapse: collapse;
}

.spec-table th,
.spec-table td {
  padding: 12px 24px;
  text-align: left;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
  border-bottom: none;
}

.spec-table th {
  width: 34%;
  color: var(--ink-mute);
  font-weight: 600;
  background: var(--bg-soft);
}

.spec-table td {
  font-weight: 600;
  color: var(--ink);
}

.spec-table td .mono {
  color: var(--blue);
}

/* ---------- Feature blocks (technology) ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.feature-block {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 38px 34px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  position: relative;
}

.feature-block:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(91, 140, 255, 0.28);
}

.feature-block .num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.12em;
}

.feature-block h3 {
  margin-top: 14px;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.015em;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.feature-block>p {
  margin-top: 14px;
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.75;
}

.feature-block .quote {
  margin-top: 20px;
  padding: 18px 20px;
  border-left: 3px solid var(--blue);
  background: var(--bg-soft);
  border-radius: 0 12px 12px 0;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.7;
}

.kv-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.kv-chips span {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 13px;
  border-radius: var(--r-pill);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--ink-soft);
}

.volt-demo {
  margin-top: 20px;
  display: flex;
  gap: 12px;
}

.volt-demo .v-box {
  flex: 1;
  border-radius: 14px;
  padding: 16px;
  text-align: center;
  font-family: var(--font-mono);
}

.volt-demo .on {
  background: rgba(6, 185, 143, 0.08);
  border: 1px solid rgba(6, 185, 143, 0.3);
  color: var(--mint);
}

.volt-demo .off {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--ink-mute);
}

.volt-demo b {
  display: block;
  font-size: 22px;
  font-weight: 700;
}

.volt-demo small {
  font-size: 11.5px;
  letter-spacing: 0.08em;
}

/* ---------- Pipeline diagram (AI platform) ---------- */
.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  counter-reset: flow;
  position: relative;
}

.flow-step {
  text-align: center;
  padding: 0 14px;
  position: relative;
}

.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 31px;
  left: calc(50% + 40px);
  width: calc(100% - 80px);
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0.35;
}

.flow-step .ic {
  width: 62px;
  height: 62px;
  margin: 0 auto;
  border-radius: 18px;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  display: grid;
  place-items: center;
  color: var(--blue);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.flow-step:hover .ic {
  transform: translateY(-4px);
  border-color: rgba(91, 140, 255, 0.4);
  box-shadow: var(--shadow-md);
}

.flow-step .ic svg {
  width: 27px;
  height: 27px;
}

.flow-step h4 {
  margin-top: 16px;
  font-size: 15.5px;
  font-weight: 800;
}

.flow-step p {
  margin-top: 5px;
  font-size: 13px;
  color: var(--ink-mute);
  line-height: 1.55;
}

/* ---------- Comparison table ---------- */
.cmp-wrap {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--card);
  box-shadow: var(--shadow-md);
  overflow-x: auto;
}

.cmp {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.cmp th,
.cmp td {
  padding: 16px 20px;
  text-align: center;
  font-size: 14.5px;
  border-bottom: 1px solid var(--line);
}

.cmp thead th {
  background: var(--bg-soft);
  font-weight: 700;
  color: var(--ink);
  font-size: 14px;
}

.cmp tbody tr:last-child td,
.cmp tbody tr:last-child th {
  border-bottom: none;
}

.cmp tbody th {
  text-align: left;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--card);
}

.cmp td {
  color: var(--ink-soft);
}

.cmp .hl {
  background: rgba(91, 140, 255, 0.05);
  font-weight: 700;
  color: var(--ink);
  position: relative;
}

.cmp thead .hl {
  background: var(--grad);
  color: #fff;
  font-weight: 800;
}

.cmp .ok {
  color: var(--mint);
  font-weight: 800;
}

.cmp .no {
  color: var(--red);
  font-weight: 700;
  opacity: 0.75;
}

/* ---------- Install steps ---------- */
.install-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.install-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 34px 30px;
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.install-card .step {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--blue);
}

.install-card .ic {
  width: 58px;
  height: 58px;
  margin: 18px auto;
  border-radius: 17px;
  background: var(--grad-soft);
  color: var(--blue);
  display: grid;
  place-items: center;
}

.install-card h4 {
  font-size: 18px;
  font-weight: 800;
}

.install-card p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.65;
}

/* ---------- App cards ---------- */
.app-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.app-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s, box-shadow 0.3s;
}

.app-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.app-card .aud {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.app-card h3 {
  margin-top: 12px;
  font-size: 21px;
  font-weight: 800;
}

.app-card ul {
  margin-top: 20px;
  display: grid;
  gap: 10px;
  flex: 1;
}

.app-card li {
  display: flex;
  gap: 10px;
  font-size: 14.5px;
  color: var(--ink-soft);
}

.app-card li::before {
  content: "✓";
  color: var(--mint);
  font-weight: 800;
  flex: none;
}

.app-card .btn {
  margin-top: 26px;
  justify-content: center;
}

/* ============================================================
   Solutions page
   ============================================================ */
.sol-card {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s, transform 0.3s;
}

.sol-card+.sol-card {
  margin-top: 28px;
}

.sol-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.sol-aside {
  background: linear-gradient(155deg, var(--bg-navy), #14284a);
  color: #fff;
  padding: 42px 36px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.sol-aside::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  right: -100px;
  bottom: -100px;
  background: radial-gradient(circle, rgba(0, 184, 217, 0.25), transparent 70%);
}

.sol-aside .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: #22d3ee;
  letter-spacing: 0.14em;
  font-weight: 700;
}

.sol-aside .ic {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: grid;
  place-items: center;
  color: #22d3ee;
  margin: 22px 0 20px;
}

.sol-aside h3 {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.sol-aside .mkt {
  margin-top: auto;
  padding-top: 28px;
  font-size: 13px;
  color: var(--ink-on-dark-soft);
  line-height: 1.6;
}

.sol-aside .mkt b {
  display: block;
  font-family: var(--font-mono);
  font-size: 19px;
  color: #fff;
  margin-bottom: 2px;
}

.sol-body {
  padding: 42px 40px;
  display: flex;
  flex-direction: column;
}

.sol-body>p {
  font-size: 16px;
  color: var(--ink-soft);
  line-height: 1.75;
}

.sol-points {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 20px;
}

.sol-points li {
  display: flex;
  gap: 10px;
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.sol-points li::before {
  content: "→";
  color: var(--blue);
  font-weight: 800;
  flex: none;
}

.sol-points b {
  color: var(--ink);
  font-weight: 700;
}

.sol-foot {
  margin-top: auto;
  padding-top: 28px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.sol-foot .btn {
  padding: 12px 24px;
  font-size: 14.5px;
}

/* TAM/SAM/SOM */
.market-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.tam-rings {
  position: relative;
  aspect-ratio: 1;
  max-width: 460px;
  margin: 0 auto;
  width: 100%;
}

.ring {
  position: absolute;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1.5px solid;
}

.ring b {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.ring span {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.ring.tam {
  inset: 0;
  background: rgba(91, 140, 255, 0.05);
  border-color: rgba(91, 140, 255, 0.25);
  padding-top: 34px;
}

.ring.tam b {
  font-size: 26px;
  color: var(--blue);
}

.ring.tam span {
  color: var(--blue);
}

.ring.sam {
  inset: 24% 12% 4% 12%;
  background: rgba(0, 184, 217, 0.08);
  border-color: rgba(0, 184, 217, 0.35);
  padding-top: 28px;
}

.ring.sam b {
  font-size: 22px;
  color: #22d3ee;
}

.ring.sam span {
  color: #22d3ee;
}

.ring.som {
  inset: 52% 26% 6% 26%;
  background: rgba(6, 185, 143, 0.1);
  border-color: rgba(6, 185, 143, 0.4);
  justify-content: center;
  padding: 0;
}

.ring.som b {
  font-size: 19px;
  color: var(--mint);
}

.ring.som span {
  color: var(--mint);
}

.market-notes {
  display: grid;
  gap: 16px;
}

.market-notes .note {
  padding: 20px 24px;
  border-radius: var(--r-md);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 16px;
  align-items: center;
}

.market-notes .swatch {
  flex: none;
  width: 14px;
  height: 14px;
  border-radius: 4px;
}

.market-notes b {
  font-family: var(--font-mono);
  font-size: 17px;
}

.market-notes p {
  font-size: 13.5px;
  color: var(--ink-mute);
  margin-top: 2px;
}

/* ROI cards */
.roi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.roi-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px 26px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.roi-card .v {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 700;
  color: var(--mint);
  letter-spacing: -0.02em;
}

.roi-card .v::before {
  content: "▼ ";
  font-size: 20px;
}

.roi-card p {
  margin-top: 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.roi-note {
  margin-top: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--ink-mute);
}

/* ============================================================
   About page
   ============================================================ */
.vision-card {
  border-radius: var(--r-lg);
  background: var(--bg-navy);
  color: #fff;
  padding: 64px 56px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.vision-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(40% 60% at 85% 10%, rgba(0, 184, 217, 0.25), transparent 70%),
    radial-gradient(40% 60% at 10% 95%, rgba(91, 140, 255, 0.3), transparent 70%);
}

.vision-card>* {
  position: relative;
}

.vision-card .eyebrow {
  color: #22d3ee;
}

.vision-card h3 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.02em;
  max-width: 720px;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 44px;
}

.mission-item {
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--r-md);
  padding: 26px 24px;
}

.mission-item .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: #22d3ee;
  font-weight: 700;
}

.mission-item p {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.65;
  color: #dbe4f0;
}

/* Team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.team-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, box-shadow 0.3s;
}

.team-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.team-card .avatar {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  background: var(--grad);
  color: #fff;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  box-shadow: var(--shadow-blue);
}

.team-card .role {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--blue);
}

.team-card h4 {
  margin-top: 6px;
  font-size: 18.5px;
  font-weight: 800;
}

.team-card ul {
  margin-top: 14px;
  display: grid;
  gap: 7px;
}

.team-card li {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.55;
  padding-left: 14px;
  position: relative;
}

.team-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 34px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
  border-radius: 2px;
  opacity: 0.35;
}

.tl-item {
  position: relative;
  padding-bottom: 40px;
}

.tl-item:last-child {
  padding-bottom: 0;
}

.tl-item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 7px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--card);
  border: 3px solid var(--blue);
  box-shadow: 0 0 0 4px rgba(91, 140, 255, 0.12);
}

.tl-item.now::before {
  background: var(--blue);
  box-shadow: 0 0 0 6px rgba(91, 140, 255, 0.18);
}

.tl-year {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.tl-now-tag {
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: #fff;
  background: var(--grad);
  padding: 3px 10px;
  border-radius: var(--r-pill);
}

.tl-item h4 {
  margin-top: 8px;
  font-size: 18px;
  font-weight: 800;
}

.tl-item p {
  margin-top: 6px;
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.65;
  max-width: 560px;
}

/* IPR */
.ipr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.ipr-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 38px 34px;
  box-shadow: var(--shadow-sm);
}

.ipr-card h3 {
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 12px;
}

.ipr-card h3 .ic {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--grad-soft);
  color: var(--blue);
  display: grid;
  place-items: center;
}

.ipr-card ul {
  margin-top: 24px;
  display: grid;
  gap: 14px;
}

.ipr-card li {
  padding: 16px 18px;
  border-radius: 13px;
  background: var(--bg-soft);
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.6;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.ipr-card li b {
  color: var(--ink);
  font-weight: 700;
}

.ipr-status {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 4px 11px;
  border-radius: var(--r-pill);
}

.ipr-status.done {
  color: var(--mint);
  background: rgba(6, 185, 143, 0.1);
  border: 1px solid rgba(6, 185, 143, 0.3);
}

.ipr-status.prog {
  color: var(--amber);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Financial chart */
.fin-wrap {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 44px 40px;
  box-shadow: var(--shadow-sm);
}

.fin-chart {
  display: flex;
  align-items: flex-end;
  gap: 4.5%;
  height: 260px;
  padding: 0 8px;
}

.fin-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  gap: 0;
  height: 100%;
}

.fin-bars {
  width: 100%;
  display: flex;
  gap: 5px;
  align-items: flex-end;
  height: 100%;
}

.fin-bar {
  flex: 1;
  border-radius: 8px 8px 3px 3px;
  min-height: 4px;
  transform-origin: bottom;
  transform: scaleY(0);
  transition: transform 1s cubic-bezier(0, 0, 0.2, 1);
}

.fin-bar.rev {
  background: var(--grad);
}

.fin-bar.profit {
  background: rgba(6, 185, 143, 0.55);
}

.in .fin-bar,
.fin-bar.in {
  transform: scaleY(1);
}

.fin-col .q {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-mute);
}

.fin-legend {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-top: 28px;
  font-size: 13.5px;
  color: var(--ink-soft);
  font-weight: 600;
}

.fin-legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.fin-legend i {
  width: 13px;
  height: 13px;
  border-radius: 4px;
}

.fin-legend .l-rev {
  background: var(--grad);
}

.fin-legend .l-profit {
  background: rgba(6, 185, 143, 0.55);
}

/* Awards */
.award-list {
  display: grid;
  gap: 16px;
}

.award-item {
  display: flex;
  gap: 20px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 24px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s, box-shadow 0.3s;
}

.award-item:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

.award-item .ic {
  flex: none;
  width: 50px;
  height: 50px;
  border-radius: 15px;
  background: rgba(245, 158, 11, 0.1);
  color: var(--amber);
  display: grid;
  place-items: center;
}

.award-item h4 {
  font-size: 16.5px;
  font-weight: 800;
}

.award-item p {
  font-size: 13.5px;
  color: var(--ink-mute);
  margin-top: 3px;
}

/* ============================================================
   Contact page
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: start;
}

.form-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 44px 40px;
  box-shadow: var(--shadow-md);
}

.form-card h3 {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 30px;
}

.f-group {
  margin-bottom: 22px;
}

.f-label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 9px;
  color: var(--ink);
}

.f-label .req {
  color: var(--red);
  margin-left: 2px;
}

.f-input,
.f-textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--r-sm);
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--card);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.f-input::placeholder,
.f-textarea::placeholder {
  color: #9aa7b8;
}

.f-input:focus,
.f-textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(91, 140, 255, 0.1);
}

.f-input.error,
.f-textarea.error {
  border-color: var(--red);
}

.f-error {
  display: none;
  font-size: 12.5px;
  color: var(--red);
  margin-top: 6px;
  font-weight: 600;
}

.f-error.show {
  display: block;
}

.f-textarea {
  resize: vertical;
  min-height: 130px;
}

.f-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.radio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.radio-pill {
  position: relative;
}

.radio-pill input {
  position: absolute;
  opacity: 0;
  inset: 0;
  cursor: pointer;
}

.radio-pill span {
  display: block;
  text-align: center;
  padding: 12px 8px;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--r-sm);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink-soft);
  transition: all 0.2s;
}

.radio-pill input:checked+span {
  border-color: var(--blue);
  background: rgba(91, 140, 255, 0.06);
  color: var(--blue);
}

.radio-pill:hover span {
  border-color: var(--blue);
}

.f-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-soft);
  cursor: pointer;
}

.f-check input {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--blue);
  cursor: pointer;
}

.f-check a {
  color: var(--blue);
  font-weight: 700;
  text-decoration: underline;
}

.form-msg {
  display: none;
  margin-top: 18px;
  padding: 15px 18px;
  border-radius: var(--r-sm);
  font-size: 14.5px;
  font-weight: 600;
}

.form-msg.ok {
  display: block;
  background: rgba(6, 185, 143, 0.09);
  border: 1px solid rgba(6, 185, 143, 0.3);
  color: #34d399;
}

.form-msg.fail {
  display: block;
  background: rgba(229, 72, 77, 0.07);
  border: 1px solid rgba(229, 72, 77, 0.3);
  color: var(--red);
}

.info-card {
  background: var(--bg-navy);
  color: #fff;
  border-radius: var(--r-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.info-card::before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  right: -120px;
  top: -120px;
  background: radial-gradient(circle, rgba(0, 184, 217, 0.22), transparent 70%);
}

.info-card>* {
  position: relative;
}

.info-card h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 26px;
}

.info-item {
  display: flex;
  gap: 15px;
  padding: 15px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.info-item:last-of-type {
  border-bottom: none;
}

.info-item .ic {
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #22d3ee;
  display: grid;
  place-items: center;
}

.info-item .k {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink-on-dark-soft);
  text-transform: uppercase;
}

.info-item .v {
  font-size: 15px;
  font-weight: 600;
  margin-top: 2px;
  line-height: 1.55;
}

.quick-links {
  margin-top: 26px;
}

.quick-links .k {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--ink-on-dark-soft);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.quick-links a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 13.5px;
  font-weight: 600;
  color: #dbe4f0;
  margin-bottom: 8px;
  transition: background 0.2s, border-color 0.2s;
}

.quick-links a:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(34, 211, 238, 0.4);
}

/* FAQ */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.25s;
}

.faq-item.open {
  border-color: rgba(91, 140, 255, 0.35);
}

.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 21px 26px;
  background: none;
  border: none;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.faq-q .chev {
  flex: none;
  transition: transform 0.3s;
  color: var(--ink-mute);
}

.faq-item.open .faq-q .chev {
  transform: rotate(180deg);
  color: var(--blue);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 0, 0.2, 1);
}

.faq-a p {
  padding: 0 26px 22px;
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.75;
}

/* Map placeholder & Preview */
.map-card {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  background-image: url('../assets/map_preview_dark.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 400px;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  position: relative;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 24px;
  text-decoration: none;
  color: inherit;
}

[data-theme="light"] .map-card {
  background-image: url('../assets/map_preview_light.png');
}

.map-card:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow-blue);
  transform: translateY(-4px);
}

.map-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(12, 19, 34, 0.1) 0%, rgba(12, 19, 34, 0.75) 100%);
  transition: all 0.3s ease;
  z-index: 1;
}

[data-theme="light"] .map-card::before {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.75) 100%);
}

.map-card:hover::before {
  background: linear-gradient(180deg, rgba(12, 19, 34, 0.05) 0%, rgba(12, 19, 34, 0.65) 100%);
}

[data-theme="light"] .map-card:hover::before {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.65) 100%);
}

.map-marker-wrap {
  position: absolute;
  top: 48%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  pointer-events: none;
}

.map-marker-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background: rgba(91, 140, 255, 0.25);
  border-radius: 50%;
  animation: mapPulse 2s infinite ease-out;
}

@keyframes mapPulse {
  0% {
    transform: translate(-50%, -50%) scale(0.4);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.8);
    opacity: 0;
  }
}

.map-marker-pin {
  width: 24px;
  height: 24px;
  background: var(--blue);
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  position: relative;
  z-index: 3;
}

.map-floating-card {
  position: relative;
  z-index: 2;
  background: rgba(12, 19, 34, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-md);
  padding: 20px 24px;
  max-width: 380px;
  width: 100%;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  transition: all 0.3s ease;
  text-align: left;
}

[data-theme="light"] .map-floating-card {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.map-card-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: var(--grad);
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.map-card-title {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 6px 0;
  color: #fff;
}

[data-theme="light"] .map-card-title {
  color: var(--ink);
}

.map-card-address {
  font-size: 13.5px;
  color: var(--ink-on-dark-soft);
  margin: 0 0 8px 0;
  line-height: 1.5;
}

[data-theme="light"] .map-card-address {
  color: var(--ink-soft);
}

.map-card-detail {
  font-size: 12px;
  color: #5b8cff;
  font-weight: 500;
  margin: 0 0 16px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.map-card-detail::before {
  content: "2";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: #37b422;
  color: #fff;
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
}

.map-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  padding: 8px 16px;
  border-radius: 6px;
  transition: all 0.2s ease;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

[data-theme="light"] .map-card-link {
  color: var(--ink);
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(0, 0, 0, 0.02);
}

.map-card:hover .map-card-link {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
  box-shadow: var(--shadow-blue-sm);
}

.map-card-link .arrow {
  transition: transform 0.2s ease;
}

.map-card:hover .map-card-link .arrow {
  transform: translateX(4px);
}

@media (max-width: 576px) {
  .map-card {
    min-height: 420px;
    padding: 16px;
  }
  .map-floating-card {
    padding: 16px;
  }
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background: #060910;
  border-top: 1px solid var(--line);
  color: var(--ink-on-dark-soft);
  padding: 72px 0 36px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: 40px;
}

.footer .logo {
  color: #fff;
}

.footer-tagline {
  margin-top: 16px;
  font-size: 14.5px;
  line-height: 1.7;
}

.footer-addr {
  margin-top: 20px;
  font-size: 13px;
  line-height: 1.7;
  color: #7d8ba0;
}

.footer h5 {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 18px;
  letter-spacing: 0.02em;
}

.footer-col a {
  display: block;
  font-size: 13.5px;
  padding: 5px 0;
  color: var(--ink-on-dark-soft);
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #22d3ee;
}

.footer-bottom {
  margin-top: 56px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #7d8ba0;
}

.footer-bottom a {
  color: #a8b6c9;
  margin-left: 18px;
}

.footer-bottom a:hover {
  color: #22d3ee;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
  .uc-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

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

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

  .sol-card {
    grid-template-columns: 320px 1fr;
  }
}

@media (max-width: 900px) {
  .section {
    padding: 76px 0;
  }

  .gnb-menu,
  .gnb .gnb-cta {
    display: none;
  }

  .gnb-burger {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .hero {
    padding-top: calc(var(--gnb-h) + 56px);
  }

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

  .pipe-arrow {
    transform: rotate(90deg);
    padding: 4px 0;
  }

  .ps-grid,
  .product-wrap,
  .spec-grid,
  .feature-grid,
  .ipr-grid,
  .contact-grid,
  .market-grid {
    grid-template-columns: 1fr;
  }

  .flow {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .flow-step:not(:last-child)::after {
    display: none;
  }

  .sol-card {
    grid-template-columns: 1fr;
  }

  .sol-aside .mkt {
    margin-top: 24px;
    padding-top: 0;
  }

  .app-grid,
  .install-grid {
    grid-template-columns: 1fr;
  }

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

  .imu-card {
    min-height: 240px;
  }

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

  .sol-points {
    grid-template-columns: 1fr;
  }

  .chip-1 {
    left: -8px;
  }

  .chip-2 {
    right: -8px;
  }
}

@media (max-width: 600px) {
  .uc-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stats-band {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .roi-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

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

  .f-row,
  .radio-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero h1 {
    font-size: 38px;
  }

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

  .cta-band {
    padding: 64px 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .ps-card,
  .form-card,
  .vision-card {
    padding: 34px 26px;
  }

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