:root {
  --ink: #102033;
  --ink-soft: #42526a;
  --muted: #66758c;
  --line: #dce5ef;
  --paper: #f6f8fb;
  --surface: #ffffff;
  --surface-strong: #fbfdff;
  --blue: #1976ff;
  --blue-strong: #0f5bd3;
  --teal: #00a7b5;
  --coral: #ef6b5b;
  --amber: #f2a51a;
  --mint: #0f9b7a;
  --shadow-soft: 0 18px 46px rgba(16, 32, 51, 0.12);
  --shadow-light: 0 8px 24px rgba(16, 32, 51, 0.08);
  --max: 1180px;
  --font-sans: "Pretendard Variable", Pretendard, "Noto Sans KR", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  font-synthesis: none;
  overflow-x: hidden;
}

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

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

button {
  font: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
  max-width: 100vw;
  padding: 0 32px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(220, 229, 239, 0.78);
  backdrop-filter: blur(18px);
  transition:
    box-shadow 180ms ease,
    background-color 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 10px 26px rgba(16, 32, 51, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 250px;
}

.brand img {
  width: 118px;
  height: auto;
  max-height: 54px;
  object-fit: contain;
}

.brand__name {
  color: var(--ink);
  font-size: 20px;
  font-weight: 800;
  line-height: 1;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 4px;
  background: rgba(246, 248, 251, 0.92);
  border: 1px solid rgba(220, 229, 239, 0.9);
  border-radius: 8px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 700;
  border-radius: 6px;
  transition:
    color 160ms ease,
    background-color 160ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--blue-strong);
  background: #ffffff;
}

.nav-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  font-weight: 700;
  border-radius: 8px;
  border: 1px solid transparent;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease;
}

.nav-cta,
.button--primary {
  color: #ffffff;
  background: var(--blue);
  box-shadow: 0 10px 24px rgba(25, 118, 255, 0.22);
}

.button--secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(220, 229, 239, 0.92);
}

.nav-cta:hover,
.button:hover {
  transform: translateY(-1px);
}

.button--primary:hover,
.nav-cta:hover {
  background: var(--blue-strong);
  box-shadow: 0 14px 30px rgba(25, 118, 255, 0.28);
}

.button--secondary:hover {
  border-color: rgba(25, 118, 255, 0.35);
  box-shadow: 0 12px 26px rgba(16, 32, 51, 0.08);
}

.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 92svh;
  padding: 112px 32px 48px;
  background-image:
    linear-gradient(90deg, rgba(247, 250, 252, 0.98) 0%, rgba(247, 250, 252, 0.9) 34%, rgba(247, 250, 252, 0.2) 68%),
    url("../assets/hero-command-center.png");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
}

.hero__content {
  min-width: 0;
  width: min(100%, var(--max));
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue-strong);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  color: var(--ink);
  font-size: 76px;
  line-height: 1;
  font-weight: 800;
}

.hero__lead {
  width: 100%;
  max-width: none;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 21px;
  line-height: 1.72;
  font-weight: 500;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.signal-strip {
  padding: 0 32px 44px;
  background: var(--paper);
}

.hero .signal-strip {
  min-width: 0;
  width: 100%;
  margin: clamp(42px, 7vh, 76px) auto 0;
  padding: 0;
  background: transparent;
}

.signal-strip__inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  width: min(100%, var(--max));
  margin: 0 auto;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-light);
}

.signal-strip__inner div {
  min-width: 0;
  min-height: 116px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.96);
}

.signal-strip strong {
  display: block;
  color: var(--ink);
  font-size: 18px;
  font-weight: 800;
}

.signal-strip span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.client-marquee {
  padding: 72px 0 76px;
  overflow: hidden;
  background:
    linear-gradient(180deg, #ffffff 0%, #f3f7fb 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.client-marquee__head {
  width: min(100% - 64px, var(--max));
  margin: 0 auto 30px;
}

.client-marquee__head h2 {
  max-width: none;
  margin: 0;
  color: var(--ink);
  font-size: 36px;
  line-height: 1.25;
  font-weight: 800;
}

.logo-marquee {
  display: grid;
  gap: 2px;
  width: 100%;
  mask-image: linear-gradient(90deg, transparent 0%, #000 9%, #000 91%, transparent 100%);
}

.logo-marquee__row {
  display: flex;
  width: 100%;
  padding: 12px 0;
  overflow: visible;
}

.logo-marquee__track {
  --marquee-step: 0px;
  display: flex;
  width: max-content;
  backface-visibility: hidden;
  will-change: transform;
}

.logo-marquee.is-ready .logo-marquee__track {
  animation: logo-scroll-left 16s linear infinite;
}

.logo-marquee.is-ready .logo-marquee__track--slow {
  animation-duration: 19s;
}

.logo-marquee.is-ready .logo-marquee__row--reverse .logo-marquee__track {
  animation-name: logo-scroll-right;
  animation-duration: 17s;
}

.logo-marquee__set {
  display: flex;
  align-items: center;
  gap: 48px;
  padding-right: 48px;
}

.client-logo {
  --client-logo-radius: 5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: 27px;
  padding: 0;
  overflow: hidden;
  background: transparent;
  border: 0;
  border-radius: var(--client-logo-radius);
  box-shadow: none;
  clip-path: inset(0 round var(--client-logo-radius));
}

.client-logo img {
  width: auto;
  height: 100%;
  overflow: hidden;
  object-fit: fill;
  object-position: center;
  border-radius: inherit;
  clip-path: inset(0 round var(--client-logo-radius));
}

@keyframes logo-scroll-left {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(calc(var(--marquee-step) * -1), 0, 0);
  }
}

@keyframes logo-scroll-right {
  from {
    transform: translate3d(calc(var(--marquee-step) * -1), 0, 0);
  }

  to {
    transform: translate3d(0, 0, 0);
  }
}

.section {
  padding: 86px 32px;
}

.section--plain,
.section--screens {
  background: #ffffff;
}

.section--soft {
  background: #eef4f9;
}

.section--journey {
  background: #101820;
  color: #ffffff;
}

.section__head {
  width: min(100%, var(--max));
  margin: 0 auto 34px;
}

.section__head h2,
.split-copy h2,
.closing-cta h2 {
  max-width: 840px;
  margin: 0;
  color: inherit;
  font-size: 42px;
  line-height: 1.22;
  font-weight: 800;
}

.section__head p:not(.eyebrow),
.split-copy p,
.closing-cta p {
  max-width: 780px;
  margin: 16px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.75;
}

.section--journey .section__head p,
.section--journey .eyebrow {
  color: #8fd4ff;
}

#problem .section__head p:not(.eyebrow),
#features .section__head h2,
#screens .section__head h2,
#journey .section__head h2 {
  width: 100%;
  max-width: none;
}

.problem-grid,
.feature-grid,
.screen-details {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  width: min(100%, var(--max));
  margin: 0 auto;
}

.problem-card,
.feature-card,
.screen-details article {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(16, 32, 51, 0.05);
}

.problem-card span,
.feature-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 24px;
  color: #ffffff;
  font-size: 17px;
  font-weight: 800;
  background: var(--blue);
  border-radius: 8px;
}

.problem-card:nth-child(2) span,
.feature-card--teal span {
  background: var(--teal);
}

.problem-card:nth-child(3) span,
.feature-card--coral span {
  background: var(--coral);
}

.problem-card:nth-child(4) span,
.feature-card--amber span {
  background: var(--amber);
}

.problem-card h3,
.feature-card h3,
.screen-details h3 {
  margin: 0;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.3;
  font-weight: 800;
}

.problem-card p,
.feature-card p,
.screen-details p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.section--split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 44px;
  align-items: center;
  background: var(--surface-strong);
}

.split-media,
.split-copy {
  width: 100%;
}

.split-media {
  justify-self: end;
  max-width: 720px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

.split-media img {
  width: 100%;
  min-height: 360px;
  object-fit: cover;
}

.split-copy {
  max-width: 560px;
}

.workflow-list,
.journey-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.workflow-list {
  display: grid;
  gap: 10px;
}

.workflow-list li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 8px 14px;
  align-items: center;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.workflow-list strong,
.journey-list strong {
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
}

.workflow-list span,
.journey-list span {
  color: var(--ink);
  font-size: 17px;
  font-weight: 800;
}

.workflow-list em,
.journey-list em {
  grid-column: 2;
  color: var(--muted);
  font-size: 14px;
  font-style: normal;
}

.feature-card {
  min-height: 264px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.86)),
    var(--surface);
}

.feature-card--blue {
  border-top: 4px solid var(--blue);
}

.feature-card--teal {
  border-top: 4px solid var(--teal);
}

.feature-card--coral {
  border-top: 4px solid var(--coral);
}

.feature-card--amber {
  border-top: 4px solid var(--amber);
}

.screen-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  width: min(100%, var(--max));
  margin: 0 auto 18px;
}

.screen-tab {
  min-height: 40px;
  padding: 0 11px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
}

.screen-tab.is-active {
  color: #ffffff;
  background: var(--blue);
  border-color: var(--blue);
}

.screen-stage {
  width: min(100%, var(--max));
  margin: 0 auto;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

.screen-stage img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  object-position: top left;
  background: #edf2f7;
}

.screen-stage figcaption {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 66px;
  margin: 0;
  padding: 18px 22px 18px 26px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(25, 118, 255, 0.12), rgba(25, 118, 255, 0.035) 42%, #ffffff 100%),
    var(--surface-strong);
}

.screen-stage figcaption::before {
  content: "i";
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  color: #ffffff;
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
  background: var(--blue);
  border-radius: 999px;
  box-shadow: 0 8px 18px rgba(25, 118, 255, 0.22);
}

.screen-stage figcaption::after {
  content: "";
  position: absolute;
  top: 14px;
  bottom: 14px;
  left: 0;
  width: 4px;
  background: var(--blue);
}

.screen-details {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 18px;
}

.screen-details article {
  display: grid;
  grid-template-columns: 148px 1fr;
  gap: 0 18px;
  align-items: center;
  min-height: 180px;
  padding: 18px;
}

.screen-details img {
  grid-row: span 2;
  width: 148px;
  height: 148px;
  object-fit: cover;
  object-position: top left;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.screen-details h3 {
  align-self: end;
}

.screen-details p {
  align-self: start;
}

.journey-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  width: min(100%, var(--max));
  margin: 0 auto;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.journey-list li {
  min-height: 150px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.06);
}

.journey-list strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: #101820;
  background: #ffffff;
  border-radius: 8px;
}

.journey-list span {
  display: block;
  margin-top: 18px;
  color: #ffffff;
}

.journey-list em {
  display: block;
  grid-column: auto;
  margin-top: 6px;
  color: #b9c7d6;
}

.closing-cta {
  width: min(100%, var(--max));
  margin: 54px auto 0;
  padding: 38px;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(25, 118, 255, 0.95), rgba(0, 167, 181, 0.88) 58%, rgba(242, 165, 26, 0.82)),
    #1976ff;
  border-radius: 8px;
}

.closing-cta h2 {
  color: #ffffff;
  font-size: 34px;
}

.closing-cta p {
  color: rgba(255, 255, 255, 0.88);
}

.closing-cta .closing-cta__free {
  margin-top: 6px;
  color: #ffffff;
  font-weight: 800;
}

.closing-cta .button {
  margin-top: 24px;
  color: var(--ink);
  background: #ffffff;
  box-shadow: none;
}

.site-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 32px;
  color: var(--muted);
  background: #e8edf3;
  border-top: 1px solid #d2dbe6;
}

.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
  color: var(--ink-soft);
  font-weight: 800;
}

.site-footer img {
  width: 92px;
  height: auto;
}

.site-footer__info {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px 18px;
  max-width: 780px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  font-style: normal;
  line-height: 1.6;
}

.site-footer__info span {
  white-space: nowrap;
}

@media (max-width: 1020px) {
  .site-header {
    height: 66px;
    padding: 0 20px;
  }

  .brand {
    min-width: 234px;
  }

  .brand img {
    width: 104px;
  }

  .site-nav {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 104px 22px 36px;
    background-image:
      linear-gradient(180deg, rgba(247, 250, 252, 0.98) 0%, rgba(247, 250, 252, 0.86) 48%, rgba(247, 250, 252, 0.28) 100%),
      url("../assets/hero-command-center.png");
    background-position: 57% center;
  }

  .hero .signal-strip {
    margin-top: 34px;
  }

  .hero h1 {
    font-size: 54px;
  }

  .hero__lead {
    width: 100%;
    max-width: none;
    font-size: 18px;
  }

  .signal-strip,
  .section {
    padding-right: 22px;
    padding-left: 22px;
  }

  .client-marquee__head {
    width: calc(100% - 44px);
  }

  .signal-strip__inner,
  .problem-grid,
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section--split {
    grid-template-columns: 1fr;
  }

  .split-media,
  .split-copy {
    max-width: none;
  }

  .screen-details article {
    grid-template-columns: 118px 1fr;
  }

  .screen-details img {
    width: 118px;
    height: 118px;
  }

  .journey-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  body {
    font-size: 15px;
  }

  .site-header {
    gap: 12px;
    padding: 0 16px;
  }

  .brand {
    min-width: 176px;
    width: auto;
  }

  .brand img {
    width: 76px;
    max-width: 100%;
  }

  .brand__name {
    font-size: 18px;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    min-height: 76svh;
    padding-top: 96px;
    background-position: 63% center;
  }

  .hero__content,
  .hero .signal-strip {
    align-self: stretch;
    width: min(100%, 346px);
    max-width: 100%;
    margin-right: 0;
    margin-left: 0;
  }

  .hero h1 {
    font-size: 44px;
  }

  .hero__lead {
    font-size: 16px;
  }

  .hero__lead,
  .signal-strip span {
    overflow-wrap: anywhere;
  }

  .button {
    width: 100%;
  }

  .signal-strip__inner,
  .problem-grid,
  .feature-grid,
  .screen-details,
  .journey-list {
    grid-template-columns: 1fr;
  }

  .section {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .client-marquee {
    padding: 58px 0 62px;
  }

  .client-marquee__head h2 {
    font-size: 28px;
  }

  .logo-marquee {
    gap: 10px;
    mask-image: linear-gradient(90deg, transparent 0%, #000 7%, #000 93%, transparent 100%);
  }

  .logo-marquee__set {
    gap: 40px;
    padding-right: 40px;
  }

  .client-logo {
    height: 27px;
    padding: 0;
  }

  .section__head h2,
  .split-copy h2 {
    font-size: 30px;
  }

  .section__head p:not(.eyebrow),
  .split-copy p {
    font-size: 15px;
  }

  .split-media img {
    min-height: 260px;
  }

  .screen-stage img {
    aspect-ratio: 4 / 3;
  }

  .screen-details article {
    grid-template-columns: 1fr;
  }

  .screen-details img {
    grid-row: auto;
    width: 100%;
    height: 210px;
    margin-bottom: 18px;
  }

  .journey-list li {
    min-height: 130px;
  }

  .closing-cta {
    padding: 28px 22px;
  }

  .closing-cta h2 {
    font-size: 28px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    padding: 24px 22px;
  }

  .site-footer__brand {
    min-width: 0;
  }

  .site-footer__info {
    justify-content: flex-start;
  }

  .site-footer__info span {
    white-space: normal;
  }
}

@media (max-width: 420px) {
  .hero h1 {
    font-size: 38px;
  }

  .hero__actions {
    margin-top: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .logo-marquee__track {
    animation-play-state: paused;
  }
}