@font-face {
  font-family: "Pretendard";
  src: url("./assets/fonts/Pretendard-Regular.woff") format("woff");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Pretendard";
  src: url("./assets/fonts/Pretendard-SemiBold.woff") format("woff");
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Pretendard";
  src: url("./assets/fonts/Pretendard-ExtraBold.woff") format("woff");
  font-weight: 800;
  font-display: swap;
}

:root {
  --lotte: #da291c;
  --lotte-deep: #b51f16;
  --lotte-soft: #fff0ee;
  --ink: #181514;
  --ink-soft: #514a46;
  --muted: #766c66;
  --line: #ded7d2;
  --line-dark: #bfb4ae;
  --paper: #ffffff;
  --fog: #f5f3f1;
  --canvas: #faf9f8;
  --success: #087a4d;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 76px;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: break-word;
}

a,
button {
  font: inherit;
}

a:focus-visible {
  outline: 3px solid rgb(218 41 28 / 34%);
  outline-offset: 5px;
}

.svg-library {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.topbar {
  position: sticky;
  z-index: 50;
  top: 0;
  display: grid;
  min-height: 76px;
  padding: 0 max(28px, calc((100vw - 1440px) / 2));
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: rgb(255 255 255 / 94%);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand span {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.topnav a {
  position: relative;
  padding: 26px 0 23px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.topnav a::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  background: var(--lotte);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.topnav a:hover::after,
.topnav a:focus-visible::after {
  transform: scaleX(1);
}

.partners {
  margin: 0;
  justify-self: end;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.hero {
  display: grid;
  max-width: 1440px;
  min-height: calc(100vh - 76px);
  margin: 0 auto;
  padding: 88px 28px 96px;
  grid-template-columns: minmax(0, 1.08fr) minmax(480px, 0.92fr);
  align-items: center;
  gap: 76px;
}

.eyebrow,
.product-owner {
  margin: 0;
  color: var(--lotte);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.hero h1 {
  max-width: 760px;
  margin: 26px 0 0;
  font-size: clamp(66px, 6.6vw, 102px);
  font-weight: 800;
  letter-spacing: -0.075em;
  line-height: 0.95;
}

.hero h1 em {
  color: var(--lotte);
  font-style: normal;
}

.hero-lede {
  max-width: 740px;
  margin: 34px 0 0;
  color: var(--ink-soft);
  font-size: clamp(18px, 1.5vw, 23px);
  line-height: 1.58;
}

.role-line {
  display: flex;
  margin-top: 30px;
  align-items: center;
  gap: 16px;
  color: var(--muted);
  font-size: 13px;
}

.role-line span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.role-line b {
  color: var(--ink);
  font-weight: 800;
}

.role-line i {
  width: 26px;
  height: 1px;
  background: var(--line-dark);
}

.primary-action,
.product-action {
  display: inline-flex;
  min-height: 60px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: var(--lotte);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  transition: background 180ms ease, transform 180ms ease;
}

.primary-action {
  min-width: 230px;
  margin-top: 38px;
  padding: 0 22px 0 26px;
}

.primary-action svg,
.product-action svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  transition: transform 180ms ease;
}

.primary-action:hover,
.product-action:hover {
  background: var(--lotte-deep);
  transform: translateY(-2px);
}

.primary-action:hover svg,
.product-action:hover svg {
  transform: translateX(4px);
}

.proof-panel {
  position: relative;
  overflow: hidden;
  padding: 42px;
  background: var(--lotte);
  color: #fff;
  box-shadow: 24px 28px 0 var(--lotte-soft);
}

.proof-panel::before,
.proof-panel::after {
  position: absolute;
  border: 1px solid rgb(255 255 255 / 26%);
  border-radius: 50%;
  content: "";
}

.proof-panel::before {
  top: -130px;
  right: -110px;
  width: 330px;
  height: 330px;
}

.proof-panel::after {
  top: -55px;
  right: -35px;
  width: 180px;
  height: 180px;
  animation: proof-ring 3.6s ease-in-out infinite;
}

.proof-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  font-weight: 700;
}

.proof-head svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

.proof-number {
  position: relative;
  z-index: 1;
  margin: 40px 0 -6px;
  font-size: clamp(126px, 12vw, 184px);
  font-weight: 800;
  letter-spacing: -0.09em;
  line-height: 0.72;
}

.proof-number em {
  margin-left: 9px;
  font-size: 0.24em;
  font-style: normal;
  letter-spacing: 0;
}

.proof-panel > strong {
  display: block;
  margin-top: 20px;
  font-size: 20px;
  letter-spacing: 0.13em;
}

.proof-flow {
  position: relative;
  z-index: 1;
  display: grid;
  margin-top: 48px;
  grid-template-columns: 1fr 36px 1fr 36px 1fr;
  align-items: center;
  gap: 10px;
}

.proof-flow div {
  display: grid;
  justify-items: center;
  gap: 9px;
  text-align: center;
}

.proof-flow svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.proof-flow span {
  font-size: 13px;
  font-weight: 700;
}

.proof-flow i {
  position: relative;
  height: 1px;
  background: rgb(255 255 255 / 44%);
}

.proof-flow i::after {
  position: absolute;
  top: -3px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #fff;
  content: "";
  animation: flow-dot 2.1s linear infinite;
}

.proof-panel > p:last-child {
  position: relative;
  z-index: 1;
  margin: 38px 0 0;
  padding-top: 22px;
  border-top: 1px solid rgb(255 255 255 / 34%);
  font-size: 16px;
  font-weight: 600;
}

.why-now {
  display: grid;
  max-width: 1440px;
  margin: 0 auto;
  padding: 102px 28px;
  grid-template-columns: minmax(300px, 0.78fr) minmax(0, 1.22fr);
  gap: 86px;
  border-top: 1px solid var(--line);
}

.why-heading h2,
.model-heading h2,
.launch h2 {
  margin: 20px 0 0;
  font-size: clamp(44px, 4.4vw, 70px);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 1.04;
}

.why-grid {
  display: grid;
  border-top: 2px solid var(--ink);
}

.why-grid article {
  display: grid;
  padding: 27px 0;
  grid-template-columns: 46px 1fr;
  gap: 20px;
  border-bottom: 1px solid var(--line);
}

.why-grid svg {
  width: 34px;
  height: 34px;
  fill: var(--lotte);
}

.why-grid strong {
  display: block;
  font-size: 21px;
  line-height: 1.25;
}

.why-grid p {
  margin: 7px 0 0;
  color: var(--muted);
}

.product {
  padding: 124px max(28px, calc((100vw - 1384px) / 2));
  border-top: 1px solid var(--line);
}

.product--sonar {
  background-color: var(--fog);
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
}

.product--discovery {
  background: linear-gradient(145deg, #fff 0%, #fff 58%, var(--lotte-soft) 100%);
}

.product--workflow {
  background-color: var(--fog);
  background-image:
    radial-gradient(circle at 12px 12px, rgb(218 41 28 / 17%) 2px, transparent 2px),
    linear-gradient(135deg, transparent 0 72%, rgb(218 41 28 / 5%) 72% 100%);
  background-size: 38px 38px, 100% 100%;
}

.product--workflow > * {
  position: relative;
  z-index: 1;
}

.product--sonar > * {
  position: relative;
  z-index: 1;
}

.product-heading {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) auto;
  align-items: end;
  gap: 42px;
}

.product-index {
  display: grid;
  width: 112px;
  height: 112px;
  padding: 15px;
  align-content: space-between;
  border: 1px solid var(--lotte);
  color: var(--lotte);
}

.product-index span {
  font-size: 12px;
  font-weight: 800;
}

.product-index svg {
  width: 42px;
  height: 42px;
  justify-self: end;
  fill: currentColor;
}

.product-heading h2 {
  max-width: 900px;
  margin: 16px 0 0;
  font-size: clamp(50px, 5.4vw, 82px);
  font-weight: 800;
  letter-spacing: -0.07em;
  line-height: 0.98;
}

.product-action {
  min-width: 162px;
  padding: 0 18px 0 22px;
  font-size: 15px;
}

.product-facts {
  display: grid;
  margin-top: 66px;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.product-facts article {
  display: grid;
  min-height: 220px;
  padding: 30px;
  grid-template-columns: 44px 1fr;
  grid-template-rows: auto 1fr;
  column-gap: 17px;
  row-gap: 24px;
  border-right: 1px solid var(--line);
  background: rgb(255 255 255 / 94%);
}

.product-facts article:first-child {
  border-left: 1px solid var(--line);
}

.product-facts svg {
  width: 34px;
  height: 34px;
  fill: var(--lotte);
}

.product-facts span {
  align-self: center;
  color: var(--lotte);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.product-facts strong {
  grid-column: 1 / -1;
  align-self: end;
  font-size: clamp(21px, 1.7vw, 27px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.32;
}

.product-screen {
  margin: 46px 0 0;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: 14px;
  background: var(--paper);
  box-shadow: 0 34px 90px rgb(60 39 29 / 13%);
}

.product-screen figcaption {
  display: grid;
  min-height: 54px;
  padding: 0 20px;
  grid-template-columns: 72px 1fr auto;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.product-screen figcaption > span {
  display: flex;
  gap: 6px;
}

.product-screen figcaption i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line-dark);
}

.product-screen figcaption i:first-child {
  background: var(--lotte);
}

.product-screen figcaption b {
  font-size: 14px;
}

.product-screen figcaption em {
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 600;
}

.product-screen img {
  display: block;
  width: 100%;
  height: auto;
  transition: transform 350ms ease;
}

.product-screen:hover img {
  transform: scale(1.008);
}

.working-model {
  display: grid;
  max-width: 1440px;
  margin: 0 auto;
  padding: 120px 28px;
  grid-template-columns: minmax(350px, 0.82fr) minmax(0, 1.18fr);
  align-items: start;
  gap: 80px;
  border-top: 1px solid var(--line);
}

.model-flow {
  display: grid;
  grid-template-columns: 1fr 28px 1fr 28px 1fr 28px 1fr;
  gap: 14px;
}

.model-flow article {
  display: grid;
  min-height: 198px;
  padding: 28px;
  align-content: space-between;
  border: 1px solid var(--line);
  background: var(--canvas);
}

.model-flow article:nth-of-type(3) {
  border-color: var(--lotte);
  background: var(--lotte-soft);
}

.model-flow svg {
  width: 35px;
  height: 35px;
  fill: var(--lotte);
}

.model-flow span {
  margin-top: 30px;
  color: var(--lotte);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.model-flow strong {
  margin-top: 7px;
  font-size: 20px;
  line-height: 1.35;
}

.model-flow > i {
  position: relative;
  width: 28px;
  height: 1px;
  align-self: center;
  background: var(--line-dark);
}

.model-flow > i::after {
  position: absolute;
  top: -3px;
  right: 0;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--line-dark);
  border-right: 1px solid var(--line-dark);
  content: "";
  transform: rotate(45deg);
}

.launch {
  display: grid;
  padding: 108px max(28px, calc((100vw - 1384px) / 2));
  grid-template-columns: minmax(360px, 0.8fr) minmax(0, 1.2fr);
  gap: 80px;
  background: var(--lotte);
  color: #fff;
}

.launch .eyebrow {
  color: #fff;
  opacity: 0.78;
}

.launch-links {
  display: grid;
  border-top: 1px solid rgb(255 255 255 / 48%);
}

.launch-links a {
  display: grid;
  min-height: 86px;
  padding: 0 8px;
  grid-template-columns: 34px 1fr 28px;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid rgb(255 255 255 / 38%);
  color: #fff;
  text-decoration: none;
  transition: padding 180ms ease, background 180ms ease;
}

.launch-links a:hover {
  padding-right: 16px;
  padding-left: 16px;
  background: rgb(255 255 255 / 10%);
}

.launch-links svg {
  width: 27px;
  height: 27px;
  fill: currentColor;
}

.launch-links span {
  font-size: 22px;
  font-weight: 700;
}

footer {
  display: flex;
  min-height: 100px;
  padding: 0 max(28px, calc((100vw - 1440px) / 2));
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
}

footer p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

@keyframes proof-ring {
  0%,
  100% {
    opacity: 0.45;
    transform: scale(0.92);
  }
  50% {
    opacity: 1;
    transform: scale(1.08);
  }
}

@keyframes flow-dot {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(29px);
  }
}

@media (max-width: 1180px) {
  .partners {
    display: none;
  }

  .topbar {
    grid-template-columns: 1fr auto;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(430px, 0.82fr);
    gap: 44px;
  }

  .role-line {
    display: grid;
    gap: 7px;
  }

  .role-line i {
    display: none;
  }

  .proof-panel {
    padding: 34px;
  }

  .product-heading {
    grid-template-columns: 120px minmax(0, 1fr);
  }

  .product-action {
    grid-column: 2;
    width: max-content;
    margin-top: 6px;
  }

  .working-model {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .hero,
  .why-now,
  .working-model,
  .launch {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 74px;
  }

  .proof-panel {
    max-width: 620px;
  }

  .why-now,
  .working-model {
    gap: 54px;
  }

  .product-facts {
    grid-template-columns: 1fr;
  }

  .product-facts article,
  .product-facts article:first-child {
    min-height: 170px;
    border-right: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }

  .model-flow {
    grid-template-columns: 1fr;
  }

  .model-flow > i {
    width: 1px;
    height: 28px;
    justify-self: center;
  }

  .model-flow > i::after {
    top: auto;
    right: -3px;
    bottom: 0;
    transform: rotate(135deg);
  }
}

@media (max-width: 680px) {
  html {
    scroll-padding-top: 68px;
  }

  body {
    font-size: 16px;
  }

  .topbar {
    min-height: 68px;
    padding: 0 18px;
  }

  .brand {
    gap: 9px;
  }

  .brand img {
    width: 36px;
    height: 36px;
  }

  .brand span {
    font-size: 12px;
  }

  .topnav {
    gap: 10px;
  }

  .topnav a {
    padding: 23px 0 20px;
    font-size: 10px;
  }

  .hero {
    padding: 60px 18px 76px;
    gap: 54px;
  }

  .hero h1 {
    margin-top: 20px;
    font-size: clamp(50px, 15.2vw, 68px);
    line-height: 0.98;
  }

  .hero-lede {
    margin-top: 26px;
    font-size: 18px;
  }

  .hero-lede br {
    display: none;
  }

  .role-line {
    font-size: 12px;
  }

  .primary-action {
    width: 100%;
    margin-top: 30px;
  }

  .proof-panel {
    padding: 28px 22px;
    box-shadow: 12px 14px 0 var(--lotte-soft);
  }

  .proof-number {
    margin-top: 34px;
    font-size: 126px;
  }

  .proof-flow {
    margin-top: 42px;
    grid-template-columns: 1fr 20px 1fr 20px 1fr;
    gap: 5px;
  }

  .proof-flow span {
    font-size: 11px;
  }

  .proof-flow i::after {
    animation: none;
  }

  .why-now,
  .working-model {
    padding: 82px 18px;
  }

  .why-heading h2,
  .model-heading h2,
  .launch h2 {
    font-size: 44px;
  }

  .why-grid article {
    grid-template-columns: 40px 1fr;
  }

  .why-grid strong {
    font-size: 19px;
  }

  .product {
    padding: 88px 18px;
  }

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

  .product-index {
    width: 86px;
    height: 86px;
    padding: 11px;
  }

  .product-index svg {
    width: 34px;
    height: 34px;
  }

  .product-heading h2 {
    font-size: 48px;
    line-height: 1.02;
  }

  .product-heading h2 br {
    display: none;
  }

  .product-action {
    grid-column: auto;
    width: 100%;
  }

  .product-facts {
    margin-top: 44px;
  }

  .product-facts article {
    min-height: 154px;
    padding: 24px 20px;
    row-gap: 16px;
  }

  .product-facts strong {
    font-size: 20px;
  }

  .product-screen {
    margin-top: 30px;
    overflow-x: auto;
    border-radius: 9px;
    overscroll-behavior-inline: contain;
  }

  .product-screen figcaption {
    position: sticky;
    z-index: 2;
    left: 0;
    min-width: 100%;
    grid-template-columns: 54px 1fr;
  }

  .product-screen figcaption em {
    display: none;
  }

  .product-screen img {
    width: 760px;
    max-width: none;
  }

  .model-flow article {
    min-height: 170px;
  }

  .launch {
    padding: 82px 18px;
    gap: 48px;
  }

  .launch-links span {
    font-size: 19px;
  }

  footer {
    min-height: 120px;
    padding: 24px 18px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 15px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}