/* 에이아이큐브 — 기업형 홈페이지 */

:root {
  --primary: #0d6e63;
  --primary-dark: #0a554d;
  --primary-light: #e6f4f2;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-alt: #f4f6f8;
  --radius: 6px;
  --radius-lg: 10px;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.08);
  --font: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --header-h: 72px;
  --max: 1140px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}
section[id] { scroll-margin-top: var(--header-h); }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

/* Typography */
.eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}
.eyebrow--light { color: #a7f3d0; }
h1, h2, h3, h4 { line-height: 1.22; letter-spacing: -0.025em; }
h1 { font-size: clamp(34px, 4.5vw, 52px); font-weight: 700; }
h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 700; }
h3 { font-size: 20px; font-weight: 700; margin-bottom: 14px; }
.lead { font-size: 17px; color: var(--muted); max-width: 480px; margin-top: 16px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn--primary { background: var(--primary); color: #fff; }
.btn--primary:hover { background: var(--primary-dark); }
.btn--outline { border-color: var(--line); background: #fff; color: var(--ink); }
.btn--outline:hover { border-color: var(--primary); color: var(--primary); }
.btn--ghost { background: transparent; color: var(--muted); }
.btn--ghost:hover { color: var(--primary); }
.btn--sm { min-height: 40px; padding: 0 16px; font-size: 14px; }
.btn--block { width: 100%; }

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  background: #fff;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: var(--shadow);
}
.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
}
.logo { display: flex; align-items: center; font-weight: 800; }
.logo__img {
  display: block;
  width: auto;
  height: 28px;
}
.logo__img--footer { height: 30px; }
.nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
}
.nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  transition: color 0.2s;
}
.nav a:hover, .nav a.is-active { color: var(--primary); }
.header__actions { display: flex; align-items: center; gap: 10px; }
.menu-toggle {
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 18px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero {
  padding: calc(var(--header-h) + 56px) 0 72px;
  background: var(--bg-alt);
}
.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 40px;
  align-items: center;
}
.hero h1 span {
  display: block;
  margin-top: 8px;
  font-size: clamp(26px, 3.2vw, 42px);
  color: var(--primary-dark);
}
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-trust {
  list-style: none;
  display: grid;
  grid-template-columns: 1.15fr 1fr 0.9fr;
  gap: 10px;
  margin-top: 28px;
  max-width: 480px;
}
.hero-trust li {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
}
.hero-trust a {
  display: block;
  height: 100%;
  padding: 12px 14px;
  border-radius: inherit;
}
.hero-trust a:hover { background: var(--primary-light); }
.hero-trust a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.hero-trust strong {
  display: block;
  font-size: 0.9rem;
  color: var(--primary-dark);
}
.hero-trust span {
  display: block;
  margin-top: 3px;
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.35;
}
.hero__visual { display: flex; align-items: stretch; min-width: 0; }
.hero-showcase { width: 100%; margin: 0; }
.hero-showcase__img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* Stats band */
.stats-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
  padding: 36px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item strong {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
}
.stat-item span { font-size: 13px; color: var(--muted); font-weight: 600; }

/* Sections */
.section { padding: 112px 0; }
.section--alt { background: var(--bg-alt); }
.section--cta {
  background: var(--primary-dark);
  color: #fff;
}
.section--cta h2 { color: #fff; }
.section--cta p { color: rgba(255,255,255,0.78); }
.section-head { max-width: 720px; margin-bottom: 64px; }
.section-head p { color: var(--muted); margin-top: 16px; font-size: 17px; line-height: 1.7; }

/* Solutions */
.sol-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}
.sol-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.sol-card:hover { border-color: #cbd5e1; }
.sol-card--featured { border-color: #99d5cf; }
.sol-card__media {
  aspect-ratio: 16 / 9;
  background: var(--bg-alt);
  overflow: hidden;
}
.sol-card__media img { width: 100%; height: 100%; object-fit: cover; }
.sol-card__body { padding: 24px 28px 28px; }
.sol-card--featured .sol-card__body { background: #fff; }
.sol-card__badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
  background: var(--primary-light);
  color: var(--primary);
  margin-bottom: 14px;
}
.sol-card h3 { font-size: 22px; margin-bottom: 10px; }
.sol-card > p { color: var(--muted); font-size: 15px; margin-bottom: 18px; }
.sol-card ul { list-style: none; display: grid; gap: 8px; margin-bottom: 22px; }
.sol-card li {
  font-size: 14px;
  color: var(--muted);
  padding-left: 16px;
  position: relative;
}
.sol-card li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
}
.sol-flow-wrap, .sol-feats-wrap { margin-bottom: 40px; }
.sol-flow-wrap h3, .sol-feats-wrap h3 { margin-bottom: 20px; }
.flow-diagram {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.flow-step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 14px;
  text-align: left;
}
.flow-step__node {
  margin-bottom: 10px;
}
.flow-step__n {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 4px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}
.flow-step__text b { display: block; font-size: 13px; margin-bottom: 4px; }
.flow-step__text p { font-size: 12px; color: var(--muted); line-height: 1.5; }
.feat-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.feat-card {
  padding: 20px;
  background: #fff;
}
.feat-card strong { display: block; font-size: 14px; margin-bottom: 6px; }
.feat-card span { font-size: 13px; color: var(--muted); line-height: 1.55; }
.use-section { margin-top: 8px; margin-bottom: 24px; }
.use-section h3 { font-size: 22px; margin-bottom: 6px; }
.use-section__desc { font-size: 15px; color: var(--muted); }
.use-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.use-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.use-item__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-alt);
}
.use-item__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.use-item__body { padding: 16px 18px 18px; }
.use-item strong { display: block; font-size: 15px; margin-bottom: 6px; }
.use-item span { font-size: 13px; color: var(--muted); line-height: 1.55; }

/* Products */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.prod-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.prod-card:hover { border-color: #cbd5e1; }
.prod-card__media {
  aspect-ratio: 2 / 1;
  background: var(--bg-alt);
  overflow: hidden;
}
.prod-card__media img { width: 100%; height: 100%; object-fit: cover; }
.prod-card__body {
  padding: 24px 28px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.prod-card__series {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 10px;
}
.prod-card__tag { font-size: 13px; color: var(--muted); font-weight: 500; margin-bottom: 8px; }
.prod-card h3 { font-size: 18px; margin-bottom: 10px; }
.prod-card > p { font-size: 14px; color: var(--muted); flex: 1; margin-bottom: 16px; }
.prod-card ul { list-style: none; display: grid; gap: 6px; margin-bottom: 20px; }
.prod-card li { font-size: 13px; color: var(--muted); padding-left: 14px; position: relative; }
.prod-card li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--primary);
}
.prod-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.prod-card__price { font-size: 18px; font-weight: 800; }
.prod-card__price small { font-size: 12px; color: var(--muted); font-weight: 500; }

/* Projects */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.chip {
  padding: 8px 14px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip.is-active { background: var(--primary); border-color: var(--primary); color: #fff; }
.proj-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.proj-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  outline: none;
}
.proj-card:hover,
.proj-card:focus-visible { border-color: #94a3b8; }
.proj-card:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.proj-card__cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-alt);
}
.proj-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.proj-card__industry {
  position: absolute;
  left: 12px;
  bottom: 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fff;
  background: rgba(15, 23, 42, 0.72);
  padding: 4px 8px;
  border-radius: 4px;
}
.proj-card__kpi {
  position: absolute;
  right: 12px;
  top: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 6px 10px;
  text-align: center;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.2;
}
.proj-card__kpi b {
  display: block;
  font-size: 18px;
  color: var(--primary);
}
.proj-card__body { padding: 20px; }
.proj-card__client { font-size: 12px; color: var(--primary); font-weight: 600; margin-bottom: 6px; }
.proj-card h3 { font-size: 16px; margin-bottom: 8px; }
.proj-card p { font-size: 13px; color: var(--muted); line-height: 1.55; }
.proj-card__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.proj-card__tags span {
  font-size: 11px;
  padding: 3px 7px;
  border-radius: 4px;
  background: var(--bg-alt);
  color: var(--muted);
}

/* About */
.about-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
  align-items: stretch;
}
.about-hero__media {
  margin: 0;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-alt);
  overflow: hidden;
}
.about-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 220px;
}
.about-hero__credit {
  padding: 8px 12px;
  font-size: 0.68rem;
  line-height: 1.45;
  color: var(--muted);
  border-top: 1px solid var(--line);
}
.about-hero__credit a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.about-hero__credit a:hover { color: var(--text); }
.badge-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-bottom: 36px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
}
.badge-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 90px;
}
.badge-item img { width: 64px; height: 64px; }
.badge-item span { font-size: 12px; font-weight: 600; color: var(--muted); }
.timeline { margin-bottom: 36px; }
.timeline h3 { margin-bottom: 20px; }
.timeline-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
}
.timeline-track::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: var(--line);
  z-index: 0;
}
.timeline-item {
  position: relative;
  z-index: 1;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 16px 18px;
  text-align: center;
}
.timeline-item em {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  font-style: normal;
  font-size: 11px;
  font-weight: 800;
  color: #fff;
  background: var(--primary);
  padding: 3px 8px;
  border-radius: 4px;
}
.timeline-item strong { display: block; font-size: 14px; margin-bottom: 6px; }
.timeline-item span { font-size: 12px; color: var(--muted); line-height: 1.5; }
.partner-strip.is-hidden,
.partner-strip[hidden] { display: none !important; }
.partner-strip { margin-bottom: 36px; }
.partner-strip h3 { margin-bottom: 16px; }
.partner-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.partner-logo {
  padding: 12px 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.partner-logo img { height: 36px; width: auto; }
.vision-box {
  background: var(--primary-light);
  border: 1px solid #b2e0da;
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 0;
  height: 100%;
}
.vision-box h3 { color: var(--primary-dark); font-size: 22px; }
.vision-box p { color: var(--muted); margin-top: 10px; }
.biz-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.biz-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.biz-card--primary { border-color: #99d5cf; background: #fff; }
.biz-card--muted { opacity: 0.75; }
.biz-card h4 { font-size: 17px; margin-bottom: 8px; }
.biz-card p { font-size: 14px; color: var(--muted); margin-bottom: 12px; }
.biz-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.biz-tags span {
  font-size: 11px;
  padding: 3px 7px;
  border-radius: 4px;
  background: var(--bg-alt);
  color: var(--muted);
}
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.value-grid { display: grid; gap: 12px; }
.value-item {
  padding: 16px;
  background: var(--bg-alt);
  border-radius: var(--radius);
  border: 1px solid var(--line);
}
.value-item strong { display: block; font-size: 14px; color: var(--primary); margin-bottom: 4px; }
.value-item span { font-size: 13px; color: var(--muted); }
.achieve-list { display: grid; gap: 10px; }
.achieve-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.achieve-item__badge {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 50%;
  object-fit: contain;
}
.achieve-item strong { font-size: 14px; }
.achieve-item span { font-size: 12px; color: var(--muted); display: block; margin-top: 2px; }
.achieve-item em { font-size: 12px; color: var(--primary); font-style: normal; font-weight: 700; flex-shrink: 0; }
.notice-box {
  padding: 24px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--bg-alt);
}
.notice-box__tag {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  background: #fff;
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--line);
}
.notice-box h4 { margin: 10px 0 6px; font-size: 16px; }
.notice-box p { font-size: 14px; color: var(--muted); }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contact-info {
  list-style: none;
  margin-top: 24px;
  display: grid;
  gap: 10px;
}
.contact-info li { font-size: 14px; color: rgba(255,255,255,0.85); }
.contact-info strong { color: #fff; margin-right: 8px; }
.contact-info a { color: #a7f3d0; text-decoration: underline; }
.contact-visuals {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}
.contact-visual {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.contact-visual:hover { border-color: rgba(255, 255, 255, 0.35); }
.contact-visual img { width: 100%; display: block; aspect-ratio: 2 / 1; object-fit: cover; }
.contact-visual span {
  display: block;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.08);
  color: #a7f3d0;
}
.contact-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  gap: 16px;
  border: 1px solid rgba(255,255,255,0.12);
}
.contact-card h3 {
  font-size: 18px;
  color: var(--ink);
  margin-bottom: 0;
}
.contact-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
}
.contact-card__actions {
  display: grid;
  gap: 10px;
}
.contact-card__mail {
  border-color: var(--line);
  color: var(--ink);
}
.contact-card__mail:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* Footer */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 56px 0 24px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.site-footer p { font-size: 14px; margin-top: 10px; max-width: 280px; }
.site-footer strong {
  display: block;
  color: #fff;
  font-size: 13px;
  margin-bottom: 12px;
}
.site-footer a {
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
  transition: color 0.2s;
}
.site-footer a:hover { color: #fff; }
.footer__copy {
  padding-top: 24px;
  border-top: 1px solid #1e293b;
  font-size: 13px;
}

/* Modal */
.modal {
  border: 0;
  padding: 0;
  background: transparent;
  max-width: none;
  max-height: none;
  width: 100%;
  height: 100%;
}
.modal::backdrop { background: rgba(15, 23, 42, 0.55); }
.modal__panel {
  position: fixed;
  inset: 24px 24px 24px auto;
  width: min(520px, calc(100vw - 48px));
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  background: #fff;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}
.modal__close {
  position: absolute;
  top: 16px; right: 16px;
  width: 36px; height: 36px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  font-size: 16px;
}
.modal h2 { font-size: 22px; margin-bottom: 6px; padding-right: 40px; }
.modal-image-notice {
  margin: 0 0 16px;
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.modal .modal-sub { color: var(--primary); font-size: 13px; font-weight: 600; margin-bottom: 20px; }
.modal .modal-section { margin-bottom: 18px; }
.modal .modal-section h4 { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px; }
.modal .modal-section p { font-size: 14px; color: var(--muted); line-height: 1.65; }
.modal-metrics {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 10px;
  margin: 16px 0;
}
.modal-metrics div {
  text-align: center;
  padding: 12px;
  background: var(--bg-alt);
  border-radius: var(--radius);
}
.modal-metrics b { display: block; font-size: 18px; color: var(--primary); }
.modal-metrics span { font-size: 11px; color: var(--muted); }
.modal-media {
  margin: -8px 0 20px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}
.modal-media img { width: 100%; display: block; aspect-ratio: 2 / 1; object-fit: cover; }
.modal-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.modal-step {
  text-align: center;
  padding: 12px 8px;
  background: var(--bg-alt);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}
.modal-step__n {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  margin: 0 auto 8px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
}
.modal-story {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 12px;
  margin: 16px 0 20px;
}
.modal-story__col {
  padding: 16px;
  background: var(--bg-alt);
  border-radius: var(--radius);
  border: 1px solid var(--line);
}
.modal-story__col--result {
  background: var(--primary-light);
  border-color: #b2e0da;
}
.modal-story__col h4 {
  font-size: 11px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.modal-story__col p { font-size: 13px; color: var(--muted); line-height: 1.6; }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 200;
  padding: 14px 20px;
  background: var(--ink);
  color: #fff;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
}
.toast.is-show { opacity: 1; transform: none; }

/* Company stats inset */
.stats-band--inset {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
  border: 1px solid var(--line);
  background: #fff;
  padding: 28px 20px;
  margin-bottom: 32px;
}

/* Featured case — full-bleed */
.featured {
  position: relative;
  min-height: min(78vh, 720px);
  color: #fff;
  overflow: hidden;
}
.featured__stage {
  position: relative;
  min-height: inherit;
  display: flex;
  align-items: flex-end;
}
.featured__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.featured__overlay {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 80px 0 72px;
  background: linear-gradient(180deg, transparent 0%, rgba(10, 20, 18, 0.55) 35%, rgba(10, 20, 18, 0.88) 100%);
}
.featured__copy {
  max-width: 560px;
}
.featured__copy h2 {
  color: #fff;
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 16px;
}
.featured__copy p {
  color: rgba(255,255,255,0.82);
  margin-bottom: 28px;
  font-size: 16px;
  line-height: 1.7;
}

/* Business pillars — photo overlay */
.biz-pillars {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 16px;
}
.biz-pillar {
  position: relative;
  display: block;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  color: #fff;
  background: #0f172a;
}
.biz-pillar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}
.biz-pillar:hover img { transform: scale(1.03); }
.biz-pillar__body {
  position: absolute;
  inset: auto 0 0 0;
  padding: 28px 24px 26px;
  background: linear-gradient(180deg, transparent, rgba(8, 16, 14, 0.88));
}
.biz-pillar__label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 7px 14px;
  border: 1px solid rgba(255,255,255,0.55);
  margin-bottom: 12px;
}
.biz-pillar__body p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255,255,255,0.88);
}

/* Product numbered list */
.section--ink {
  background: #0f172a;
  color: #fff;
}
.section-head--light h2 { color: #fff; }
.section-head--light p { color: rgba(255,255,255,0.7); }
.prod-list {
  display: grid;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.prod-row {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 24px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.prod-row__n {
  font-size: 20px;
  font-weight: 700;
  color: #5eead4;
  letter-spacing: 0.04em;
}
.prod-row__series {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #5eead4;
  margin-bottom: 6px;
}
.prod-row__main h3 {
  font-size: 20px;
  color: #fff;
  margin-bottom: 8px;
}
.prod-row__desc {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  margin-bottom: 12px;
  max-width: 560px;
}
.prod-row__tags { display: flex; flex-wrap: wrap; gap: 6px; }
.prod-row__tags span {
  font-size: 11px;
  padding: 4px 8px;
  border: 1px solid rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.8);
}
.prod-row__side {
  display: grid;
  gap: 12px;
  justify-items: end;
  min-width: 160px;
}
.prod-row__price {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  text-align: right;
}
.prod-row__price small {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.55);
  margin-top: 2px;
}
.section--ink .btn--outline {
  background: transparent;
  border-color: rgba(255,255,255,0.28);
  color: #fff;
}
.section--ink .btn--outline:hover {
  border-color: #5eead4;
  color: #5eead4;
}

/* Reference grid */
.ref-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.ref-card {
  background: #fff;
  border: 1px solid var(--line);
  overflow: hidden;
  cursor: pointer;
  outline: none;
}
.ref-card:hover,
.ref-card:focus-visible { border-color: #94a3b8; }
.ref-card:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.ref-card__media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-alt);
}
.ref-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ref-card__body { padding: 16px 18px 20px; }
.ref-card__client {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 6px;
}
.ref-card__body h3 { font-size: 16px; margin-bottom: 8px; }
.ref-card__body p { font-size: 13px; color: var(--muted); line-height: 1.55; }

/* Contact form */
.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.contact-form label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
}
.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}
.contact-form__full { grid-column: 1 / -1; }
.contact-form__check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-weight: 500;
  color: var(--muted);
}
.contact-form__check input { width: auto; margin-top: 3px; }
.contact-form__check a,
.contact-form__help a {
  color: var(--primary-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.contact-form__actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.contact-form__help {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

/* Integrated proposal content */
.platform-section { padding-block: 96px; background: #fff; }
.platform-stack {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 0;
  border: 1px solid var(--line);
}
.platform-anchor {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  padding: 40px;
  background: var(--primary-light);
  border-right: 1px solid #b7e0da;
}
.platform-anchor h3 {
  margin: 18px 0 12px;
  color: var(--primary-dark);
  font-size: clamp(30px, 4vw, 48px);
}
.platform-anchor p:not(.eyebrow) { max-width: 560px; color: var(--muted); }
.platform-layers { display: grid; }
.platform-layer {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 16px;
  align-items: start;
  padding: 28px 32px;
  border-bottom: 1px solid var(--line);
}
.platform-layer:last-child { border-bottom: 0; }
.platform-layer > span { color: var(--primary); font-size: 12px; font-weight: 800; }
.platform-layer h3 { margin-bottom: 6px; font-size: 19px; }
.platform-layer p { color: var(--muted); font-size: 14px; }
.platform-flow {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 20px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: var(--bg-alt);
}
.platform-flow strong { color: var(--primary-dark); }
.fact-badge {
  display: inline-block;
  padding: 4px 8px;
  color: #b7eee6;
  border: 1px solid rgba(183,238,230,0.35);
  font-size: 11px;
  font-weight: 750;
}
.fact-badge--confirmed {
  color: var(--primary-dark);
  border-color: #9dcfc8;
  background: #fff;
}

.problem-section { border-bottom: 1px solid var(--line); }
.problem-list {
  list-style: none;
  border-top: 1px solid var(--line);
}
.problem-list li {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 20px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.problem-list > li > span {
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
}
.problem-list a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 8px;
  margin: -8px;
}
.problem-list a:hover p, .problem-list a:hover strong { color: var(--primary); }
.problem-list a:focus-visible { outline: 2px solid var(--primary); outline-offset: 4px; }
.problem-list a strong { color: var(--primary-dark); font-size: 14px; white-space: nowrap; }
.problem-list p {
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 650;
  line-height: 1.45;
}

.solution-families {
  display: grid;
  gap: 88px;
}
.solution-family {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.solution-family--reverse .solution-family__media { order: 2; }
.solution-family__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: #dfe7e5;
}
.solution-family__media img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.solution-family__media span {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 6px 10px;
  border-radius: 4px;
  background: rgba(255,255,255,0.94);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 750;
}
.solution-family__body h3 {
  max-width: 560px;
  margin-bottom: 18px;
  font-size: clamp(26px, 3.4vw, 40px);
}
.solution-family__body > p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.75;
}
.solution-family__problem {
  margin-bottom: 12px;
  color: var(--ink) !important;
  font-weight: 650;
}
.solution-family__spec {
  display: grid;
  gap: 0;
  margin: 24px 0;
  border-top: 1px solid var(--line);
}
.solution-family__spec div {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}
.solution-family__spec dt { font-weight: 750; color: var(--primary-dark); }
.solution-family__spec dd { color: var(--muted); }
.solution-family__actions { display: flex; flex-wrap: wrap; gap: 10px; }
.extension-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 24px;
}
.extension-chips a {
  display: inline-grid;
  gap: 2px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  background: #fff;
}
.extension-chips a:hover { border-color: var(--primary); }
.extension-chips strong { font-size: 13px; }
.extension-chips span { color: var(--muted); font-size: 10px; }

.extension-map { border-top: 1px solid rgba(255,255,255,0.18); }
.extension-branch {
  display: grid;
  grid-template-columns: 52px minmax(220px, 0.8fr) 72px 1.2fr auto;
  gap: 24px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid rgba(255,255,255,0.18);
}
.extension-branch__number { color: #a7f3d0; font-size: 12px; font-weight: 800; }
.extension-branch__core h3 { margin: 10px 0 6px; color: #fff; font-size: 20px; }
.extension-branch__core p { color: rgba(255,255,255,0.62); font-size: 13px; }
.extension-branch__line { height: 1px; background: rgba(255,255,255,0.28); }
.extension-branch ul { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.extension-branch li {
  padding: 7px 9px;
  color: rgba(255,255,255,0.82);
  border: 1px solid rgba(255,255,255,0.14);
  font-size: 12px;
}
.extension-branch > a { color: #a7f3d0; font-size: 13px; font-weight: 700; white-space: nowrap; }
.extension-map__foot { margin-top: 32px; }

.delivery-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  border-top: 1px solid rgba(255,255,255,0.18);
}
.delivery-group {
  padding: 28px 28px 32px 0;
  border-right: 1px solid rgba(255,255,255,0.18);
}
.delivery-group + .delivery-group { padding-left: 28px; }
.delivery-group:last-child { border-right: 0; }
.delivery-group > span {
  color: #a7f3d0;
  font-size: 12px;
  font-weight: 800;
}
.delivery-group h3 { margin: 14px 0 18px; color: #fff; font-size: 24px; }
.delivery-group ul { list-style: none; }
.delivery-group li { padding: 7px 0; color: rgba(255,255,255,0.72); }

.proof-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 20px;
}
.proof-panel {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-alt);
}
.proof-panel--confirmed { background: #fff; border-color: #b7e0da; }
.proof-panel__label {
  margin-bottom: 18px;
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
}
.proof-panel a {
  display: grid;
  gap: 4px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}
.proof-panel a:hover strong { color: var(--primary); }
.proof-panel a span, .proof-panel li, .proof-panel__note { color: var(--muted); }
.proof-panel ul { padding-left: 1.2rem; line-height: 2; }
.proof-model-links { list-style: none; padding-left: 0 !important; }
.proof-model-links li { border-top: 1px solid var(--line); }
.proof-model-links a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  color: var(--ink);
  font-weight: 650;
}
.proof-model-links a:hover { color: var(--primary); }
.proof-model-links a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.proof-panel__note { margin-top: 18px; font-size: 13px; line-height: 1.6; }

.poc-steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}
.poc-steps li {
  padding: 26px 24px 12px 0;
  border-right: 1px solid var(--line);
}
.poc-steps li + li { padding-left: 24px; }
.poc-steps li:last-child { border-right: 0; }
.poc-steps > li > span {
  color: var(--primary);
  font-weight: 800;
  font-size: 13px;
}
.poc-steps h3 { margin: 16px 0 10px; font-size: 18px; }
.poc-steps p { color: var(--muted); font-size: 14px; line-height: 1.65; }

/* Reveal — 스크롤 진입 시 페이드만 (이동 없음) */
.reveal {
  opacity: 0;
  transition: opacity 0.35s ease;
}
.reveal.is-visible { opacity: 1; }

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

/* Responsive */
@media (max-width: 1024px) {
  .hero__grid, .biz-pillars, .ref-grid, .contact-grid { grid-template-columns: 1fr; }
  .solution-family { gap: 32px; }
  .poc-steps { grid-template-columns: repeat(2, 1fr); }
  .poc-steps li:nth-child(2) { border-right: 0; }
  .biz-pillar { aspect-ratio: 16 / 10; }
  .prod-row { grid-template-columns: 48px 1fr; }
  .prod-row__side { grid-column: 2; justify-items: start; }
  .timeline-track { grid-template-columns: repeat(2, 1fr); }
  .timeline-track::before { display: none; }
  .stats-band--inset { grid-template-columns: repeat(2, 1fr); }
  .modal-steps, .modal-story { grid-template-columns: 1fr; }
  .extension-branch { grid-template-columns: 42px 0.9fr 48px 1.1fr; }
  .extension-branch > a { grid-column: 2; }
}
@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 16px 20px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s, opacity 0.25s;
  }
  .nav.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .nav a { padding: 12px 0; font-size: 16px; }
  .menu-toggle { display: flex; }
  .header__actions .btn--ghost { display: none; }
  .stats-band--inset, .footer__grid { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .featured { min-height: 520px; }
  .featured__overlay { padding: 56px 0 48px; }
  .contact-form { grid-template-columns: 1fr; }
  .contact-form__actions { grid-template-columns: 1fr; }
  .hero-trust { grid-template-columns: 1fr; max-width: none; }
  .solution-family { grid-template-columns: 1fr; gap: 26px; }
  .solution-family--reverse .solution-family__media { order: 0; }
  .solution-families { gap: 64px; }
  .platform-stack, .proof-layout, .poc-steps { grid-template-columns: 1fr; }
  .platform-anchor { border-right: 0; border-bottom: 1px solid #b7e0da; }
  .platform-flow { flex-wrap: wrap; justify-content: flex-start; }
  .problem-list a { grid-template-columns: 1fr; gap: 8px; }
  .problem-list a strong { white-space: normal; }
  .extension-branch { grid-template-columns: 36px 1fr; gap: 14px; }
  .extension-branch__line { display: none; }
  .extension-branch ul, .extension-branch > a { grid-column: 2; }
  .extension-branch ul { display: grid; }
  .delivery-group, .delivery-group + .delivery-group, .poc-steps li, .poc-steps li + li {
    padding: 24px 0;
    border-right: 0;
    border-bottom: 1px solid rgba(255,255,255,0.18);
  }
  .poc-steps li, .poc-steps li + li { border-bottom-color: var(--line); }
  .problem-list li { grid-template-columns: 48px 1fr; }
  .modal__panel { inset: auto 0 0 0; width: 100%; max-height: 85vh; border-radius: var(--radius) var(--radius) 0 0; }
}