@import url("./tokens.css?v=20261105-secondary-on-dark");

/* Licensed UCity Pro webfonts: unmodified Fatype WOFF2/WOFF originals.
 * Five static weights and their italics; no variable/Medium font is delivered.
 * Keep the existing vertical metrics for the Korean/Latin layout.
 * Purchase and deployment records: reference/font-licenses/ucity-pro/.
 */

@font-face {
  font-family: "UCity Pro";
  src: url("../fonts/ucity-pro/UCityProWeb-Light.woff2") format("woff2"),
       url("../fonts/ucity-pro/UCityProWeb-Light.woff") format("woff");
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  ascent-override: 95.21484375%;
  descent-override: 24.12109375%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "UCity Pro";
  src: url("../fonts/ucity-pro/UCityProWeb-LightItalic.woff2") format("woff2"),
       url("../fonts/ucity-pro/UCityProWeb-LightItalic.woff") format("woff");
  font-style: italic;
  font-weight: 300;
  font-display: swap;
  ascent-override: 95.21484375%;
  descent-override: 24.12109375%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "UCity Pro";
  src: url("../fonts/ucity-pro/UCityProWeb-Regular.woff2") format("woff2"),
       url("../fonts/ucity-pro/UCityProWeb-Regular.woff") format("woff");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  ascent-override: 95.21484375%;
  descent-override: 24.12109375%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "UCity Pro";
  src: url("../fonts/ucity-pro/UCityProWeb-RegularItalic.woff2") format("woff2"),
       url("../fonts/ucity-pro/UCityProWeb-RegularItalic.woff") format("woff");
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  ascent-override: 95.21484375%;
  descent-override: 24.12109375%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "UCity Pro";
  src: url("../fonts/ucity-pro/UCityProWeb-SemiBold.woff2") format("woff2"),
       url("../fonts/ucity-pro/UCityProWeb-SemiBold.woff") format("woff");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  ascent-override: 95.21484375%;
  descent-override: 24.12109375%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "UCity Pro";
  src: url("../fonts/ucity-pro/UCityProWeb-SemiboldItalic.woff2") format("woff2"),
       url("../fonts/ucity-pro/UCityProWeb-SemiboldItalic.woff") format("woff");
  font-style: italic;
  font-weight: 600;
  font-display: swap;
  ascent-override: 95.21484375%;
  descent-override: 24.12109375%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "UCity Pro";
  src: url("../fonts/ucity-pro/UCityProWeb-Bold.woff2") format("woff2"),
       url("../fonts/ucity-pro/UCityProWeb-Bold.woff") format("woff");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  ascent-override: 95.21484375%;
  descent-override: 24.12109375%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "UCity Pro";
  src: url("../fonts/ucity-pro/UCityProWeb-BoldItalic.woff2") format("woff2"),
       url("../fonts/ucity-pro/UCityProWeb-BoldItalic.woff") format("woff");
  font-style: italic;
  font-weight: 700;
  font-display: swap;
  ascent-override: 95.21484375%;
  descent-override: 24.12109375%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "UCity Pro";
  src: url("../fonts/ucity-pro/UCityProWeb-Black.woff2") format("woff2"),
       url("../fonts/ucity-pro/UCityProWeb-Black.woff") format("woff");
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  ascent-override: 95.21484375%;
  descent-override: 24.12109375%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "UCity Pro";
  src: url("../fonts/ucity-pro/UCityProWeb-BlackItalic.woff2") format("woff2"),
       url("../fonts/ucity-pro/UCityProWeb-BlackItalic.woff") format("woff");
  font-style: italic;
  font-weight: 900;
  font-display: swap;
  ascent-override: 95.21484375%;
  descent-override: 24.12109375%;
  line-gap-override: 0%;
}

@font-face {
  font-family: "Pretendard Variable";
  src: url("../fonts/pretendard-variable/PretendardVariable.woff2") format("woff2");
  font-style: normal;
  font-weight: 45 920;
  font-display: swap;
}

/* 1. Reset / Base */
:root {
  --font-sans: "UCity Pro", "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", Arial, sans-serif;
  background: #f2f7f7;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--page-fg);
  font-family: var(--font-sans, "UCity Pro", "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", Arial, sans-serif);
  font-size: var(--text-body);
  font-weight: var(--weight-regular);
  letter-spacing: 0;
  line-height: var(--leading-body);
}

body:not(.contact-page) {
  background:
    radial-gradient(circle at 12% 0%, rgba(20, 125, 255, 0.11), transparent 30rem),
    linear-gradient(180deg, var(--page-bg) 0%, var(--page-bg-soft) 100%);
}

body.home-page {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.contact-page {
  background: #f9f8f5;
}

body.about-page {
  background: #f9f8f5;
}

body.about-page .skip-link {
  z-index: 1001;
}

body:not(.home-page) {
  padding-top: calc(var(--nav-height-mobile) + var(--space-10));
}

body.is-menu-open {
  overflow: hidden;
}

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

video {
  height: auto;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  border: 0;
}

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

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 3px solid var(--color-ring);
  outline-offset: 4px;
}

::selection {
  background: var(--serim-blue-100);
  color: var(--serim-blue-950);
}

/* 2. Layout */
.skip-link {
  position: fixed;
  z-index: calc(var(--z-header) + 10);
  top: var(--space-3);
  left: var(--space-3);
  transform: translateY(-160%);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--serim-white);
  color: var(--serim-blue-950);
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  box-shadow: var(--shadow-card);
  transition: transform var(--duration-base) var(--ease-out);
}

.skip-link:not(:focus) {
  box-shadow: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(100% - (var(--container-gutter) * 2), var(--container));
  margin-inline: auto;
}

.container--wide {
  width: min(100% - (var(--container-gutter) * 2), var(--container-wide));
}

/* 3. Header */
.site-header {
  position: absolute;
  z-index: 900;
  top: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: var(--nav-height-mobile);
  margin: 0;
  padding: 0 20px;
  color: var(--serim-white);
  border: 0;
  border-radius: 0;
  background-color: #0000;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transition:
    background-color 0.5s cubic-bezier(0.165, 0.84, 0.44, 1),
    top 0.3s cubic-bezier(0.455, 0.03, 0.515, 0.955);
}

body:not(.home-page) .site-header,
.site-header.is-scrolled,
body.is-menu-open .site-header {
  position: fixed;
  top: 0;
  background-color: #000;
}

.site-logo {
  order: 1;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  height: 100%;
  min-width: 0;
}

.site-logo__image {
  width: clamp(132px, 38vw, 180px);
  height: auto;
  object-fit: contain;
}

.site-header .site-logo__image {
  filter: none;
}

.site-logo--footer .site-logo__image {
  width: clamp(106px, 26vw, 138px);
  filter: none;
}

.menu-toggle {
  order: 4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  color: var(--serim-white);
  border-radius: 0;
  background: transparent;
  cursor: pointer;
  transition:
    opacity 0.2s cubic-bezier(0.165, 0.84, 0.44, 1),
    transform var(--duration-fast) var(--ease-out);
}

.menu-toggle:hover {
  opacity: 0.68;
}

.menu-toggle:active {
  transform: scale(0.98);
}

.menu-toggle__line {
  position: relative;
  width: 24px;
  height: 14px;
  background: transparent;
  transition: background-color var(--duration-base) var(--ease-out);
}

.menu-toggle__line::before,
.menu-toggle__line::after {
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background: currentColor;
  content: "";
  transition:
    transform var(--duration-base) var(--ease-out),
    top var(--duration-base) var(--ease-out);
}

.menu-toggle__line::before {
  top: 3px;
}

.menu-toggle__line::after {
  top: 9px;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line {
  background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line::after {
  top: 0;
  transform: rotate(-45deg);
}

.menu-toggle__text {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.site-nav {
  order: 2;
  position: absolute;
  top: 100%;
  right: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  max-height: calc(100vh - var(--nav-height-mobile));
  padding: 16px 20px 24px;
  overflow-y: auto;
  border: 0;
  border-radius: 0;
  background: #000;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.site-nav__item {
  position: relative;
  display: flex;
  flex-direction: column;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  border-radius: 0;
  font-size: 15px;
  font-weight: var(--weight-semibold);
  line-height: 1;
  transition:
    opacity 0.2s cubic-bezier(0.165, 0.84, 0.44, 1),
    color 0.2s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.site-nav__link {
  padding: 0;
  color: var(--serim-white);
  font-size: 15px;
  font-weight: 500;
  text-transform: uppercase;
}

.site-nav__item--has-menu > .site-nav__link::after {
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  content: "";
  transform: rotate(45deg) translateY(-2px);
  transform-origin: center;
  transition: transform var(--duration-fast) var(--ease-out);
}

.site-nav__item--has-menu:hover > .site-nav__link::after,
.site-nav__item--has-menu:focus-within > .site-nav__link::after {
  transform: rotate(225deg) translate(-2px, -1px);
}

.site-nav__link[aria-current="page"] {
  opacity: 0.9;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--serim-white);
  background: transparent;
  opacity: 0.68;
}

.site-nav__dropdown {
  display: grid;
  gap: 0;
  margin: -2px 0 10px 1px;
  padding: 0 0 8px 13px;
  border-left: 1px solid rgba(255, 255, 255, 0.18);
}

.site-nav__dropdown a {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  min-height: 34px;
  padding: 6px 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
  font-weight: 450;
  line-height: 1;
  text-transform: none;
  white-space: nowrap;
}

.site-nav__dropdown-title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  line-height: 1;
}

.site-nav__dropdown-arrow,
.site-nav__dropdown-description {
  display: none;
}

.site-nav__dropdown a:hover,
.site-nav__dropdown a:focus-visible {
  color: var(--serim-white);
  opacity: 1;
}

.language-switcher {
  order: 3;
  position: relative;
  z-index: 1001;
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  margin-left: auto;
  margin-right: 10px;
}

.language-switcher__button {
  position: relative;
  z-index: 1001;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 8px 0;
  overflow: visible;
  color: var(--serim-white);
  font: inherit;
  text-transform: none;
  appearance: none;
  cursor: pointer;
  background-color: #0000;
  border-radius: 0;
  transition: opacity 0.3s;
}

.language-switcher__button:hover,
.language-switcher__button[aria-expanded="true"] {
  opacity: 0.68;
}

.header-contact-button {
  order: 4;
  position: relative;
  z-index: 1001;
  box-sizing: border-box;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 0;
  width: auto;
  min-height: 40px;
  padding: 0.78125rem 1rem;
  overflow: hidden;
  color: var(--serim-white);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  font-feature-settings: inherit;
  font-variation-settings: inherit;
  letter-spacing: 0;
  text-transform: none;
  white-space: nowrap;
  cursor: pointer;
  opacity: 1;
  background-color: transparent;
  border: 0;
  border-radius: 9999px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition-duration: 0.2s;
  transition-property: color, background-color, box-shadow, transform;
  transition-timing-function: cubic-bezier(0, 0, 0.2, 1);
}

.header-contact-button:hover,
.header-contact-button:focus-visible {
  color: var(--serim-white);
  background-color: transparent;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.header-contact-button__label {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-contact-button__text {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s var(--ease-out);
  transform: translateY(0);
}

.header-contact-button__text--hover {
  position: absolute;
  inset: 0;
  transform: translateY(200%);
}

.header-contact-button:hover .header-contact-button__text,
.header-contact-button:focus-visible .header-contact-button__text {
  transform: translateY(-200%);
}

.header-contact-button:hover .header-contact-button__text--hover,
.header-contact-button:focus-visible .header-contact-button__text--hover {
  transform: translateY(0);
}

.language-switcher__globe,
.language-switcher__button-caret {
  flex: 0 0 auto;
}

.language-switcher__button-title,
.language-switcher__title,
.language-switcher__option {
  color: var(--serim-white);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.2;
}

.language-switcher__menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  display: flex;
  flex-direction: column;
  width: 140px;
  padding: 8px;
  color: var(--serim-white);
  text-align: left;
  visibility: hidden;
  pointer-events: none;
  background-color: #222;
  border-radius: 8px;
  transform: translateY(-6px);
  opacity: 0;
  transition:
    opacity 0.2s cubic-bezier(0.645, 0.045, 0.355, 1),
    transform 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
}

.language-switcher.is-open .language-switcher__menu {
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0%);
  opacity: 1;
}

.language-switcher__title {
  display: block;
  padding: 8px 8px 6px;
  opacity: 0.72;
}

.language-switcher__options-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.language-switcher__option {
  display: flex;
  align-items: center;
  min-height: 34px;
  padding: 0 8px;
  border-radius: 4px;
  transition:
    background-color 0.2s cubic-bezier(0.165, 0.84, 0.44, 1),
    opacity 0.2s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.language-switcher__option:hover,
.language-switcher__option:focus-visible,
.language-switcher__option--is-active {
  background-color: rgba(255, 255, 255, 0.12);
}

.language-switcher__option[aria-disabled="true"] {
  opacity: 0.58;
}

.language-switcher__menu-caret {
  position: absolute;
  top: -12px;
  right: 28px;
  color: #222;
}

/* 4. Hero */
.hero {
  position: relative;
  display: grid;
  min-height: 100vh;
  min-height: 100svh;
  min-height: 100dvh;
  overflow: hidden;
  isolation: isolate;
  color: var(--color-fg);
  background: var(--hero-fallback);
}

.hero__media,
.hero__video,
.hero__overlay {
  position: absolute;
  inset: 0;
}

.hero__media {
  z-index: -5;
  overflow: hidden;
  background: var(--hero-fallback);
}

.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
}

.hero__overlay--scrim {
  z-index: -4;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0.29%, rgb(82 77 52 / 90%) 100%);
}

.hero__overlay--bottom {
  z-index: -1;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 60%, rgba(0, 0, 0, 0.6) 100%);
}

.hero__lockup {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  min-height: 100vh;
  min-height: 100svh;
  min-height: 100dvh;
  padding-top: 0;
  padding-bottom: 0;
}

.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  margin: 0 auto;
  padding: 0;
  text-align: center;
}

.hero__eyebrow,
.eyebrow {
  margin: 0 0 var(--space-4);
  color: var(--color-primary-hover);
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-label);
  line-height: 1;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--color-primary);
}

.eyebrow--on-dark {
  color: var(--serim-blue-300);
}

.hero__title {
  display: block;
  width: 100%;
  min-width: 0;
  max-width: 1040px;
  margin: 0;
  text-align: center;
  text-shadow: 0 18px 54px rgba(1, 7, 20, 0.42);
}

.hero-text__static {
  display: block;
  white-space: nowrap;
  color: var(--serim-white);
  font-family: var(--font-sans);
  font-size: clamp(2.65rem, 13vw, 3.75rem);
  font-weight: var(--fc-regular-weight, 400);
  letter-spacing: -0.045em;
  line-height: 1;
}

.hero-text__static > span {
  display: block;
}

html[lang="ko"] .hero-text__static {
  font-size: clamp(2.55rem, 12.5vw, 3.75rem);
  letter-spacing: -0.045em;
}

html[lang="en"] .hero-text__static {
  font-size: clamp(2.15rem, 10vw, 3.75rem);
  letter-spacing: -0.045em;
}

.hero__copy {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: 18px;
  font-weight: var(--weight-regular);
  line-height: 1.5;
  text-shadow: 0 10px 32px rgba(1, 7, 20, 0.34);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  width: auto;
  max-width: 100%;
  margin-top: clamp(40px, 5vw, 64px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--button-height);
  padding: 0 var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: var(--weight-medium);
  line-height: 1;
  white-space: nowrap;
  transition:
    background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

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

.button:active {
  transform: translateY(0);
}

.button--primary {
  color: var(--color-primary-fg);
  background: linear-gradient(180deg, var(--color-primary-hover), var(--color-primary));
  box-shadow: 0 16px 42px rgba(20, 125, 255, 0.32);
}

.button--primary:hover {
  background: linear-gradient(180deg, var(--serim-blue-300), var(--color-primary-hover));
  box-shadow: var(--shadow-blue);
}

.hero__button.button--primary {
  width: clamp(168px, 14vw, 196px);
  max-width: calc(100vw - (var(--container-gutter) * 2));
  min-width: 0;
  min-height: clamp(56px, 5vw, 64px);
  padding: 0 clamp(24px, 3vw, 34px);
  border-radius: 0;
  color: var(--serim-navy-950);
  background: var(--serim-white);
  box-shadow: none;
  font-size: clamp(1rem, 1.15vw, 1.18rem);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.hero__button.button--primary:hover {
  background: var(--serim-white);
  box-shadow: none;
}

.button--secondary {
  color: var(--color-fg);
  border-color: var(--color-border-strong);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.button--secondary:hover {
  border-color: rgba(140, 200, 255, 0.58);
  background: rgba(255, 255, 255, 0.14);
}

.button--light {
  color: var(--serim-blue-950);
  background: var(--serim-white);
  box-shadow: none;
}

/* 5. Marquee */
.hero__marquee {
  position: absolute;
  inset-inline: 0;
  z-index: 10;
  bottom: calc(var(--space-1) * 26);
}

.hero__marquee-container {
  width: 100%;
  max-width: 72rem;
  margin-inline: auto;
}

.hero__marquee-mask {
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent 0%, black 25%, black 75%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 25%, black 75%, transparent 100%);
}

.hero__marquee-track {
  display: flex;
  width: max-content;
  align-items: center;
  animation: marquee var(--duration-marquee) linear infinite;
  animation-duration: 40s;
  will-change: transform;
}

.hero__marquee:hover .hero__marquee-track {
  animation-play-state: paused;
}

.hero__marquee-set {
  display: flex;
  align-items: center;
}

.hero__marquee-logo {
  display: block;
  width: auto;
  height: 1.4rem;
  margin-right: 4.5rem;
  flex-shrink: 0;
  opacity: 0.85;
  filter: grayscale(1) brightness(0) invert(1);
  -webkit-filter: grayscale(1) brightness(0) invert(1);
}

@keyframes marquee {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(var(--marquee-shift, -33.3333%), 0, 0);
  }
}

@keyframes nav-dropdown-enter {
  from {
    opacity: 0;
    transform: scale(0.95);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 6. Cards / Sections */
.home-section {
  position: relative;
  padding-block: clamp(var(--space-20), 10vw, 132px);
}

.section-intro {
  display: grid;
  gap: var(--space-4);
  max-width: 860px;
}

.section-intro--center {
  justify-items: center;
  margin-inline: auto;
  text-align: center;
}

.section-intro--compact {
  max-width: 720px;
}

.section-intro h2,
.capability__statement h2,
.contact-band h2 {
  margin: 0;
  color: var(--page-fg);
  font-size: var(--text-section);
  font-weight: var(--weight-light);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}

.section-intro p,
.capability__statement p,
.contact-band p {
  max-width: 720px;
  margin: 0;
  color: var(--page-muted);
}

.category-grid,
.flavor-card-grid,
.process-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-10);
}

.category-card,
.flavor-card,
.process-card {
  position: relative;
  display: grid;
  min-height: 260px;
  padding: var(--space-6);
  overflow: hidden;
  border: 1px solid var(--page-border);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.76)),
    radial-gradient(circle at 85% 12%, rgba(20, 125, 255, 0.12), transparent 18rem);
  box-shadow: var(--shadow-card);
  transition:
    border-color var(--duration-base) var(--ease-out),
    box-shadow var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
}

.category-card:hover,
.flavor-card:hover,
.process-card:hover {
  transform: translateY(-4px);
  border-color: var(--page-border-strong);
  box-shadow: var(--shadow-card-hover);
}

.category-card__number,
.process-card span,
.flavor-card span {
  color: var(--color-primary);
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-label);
  line-height: 1;
  text-transform: uppercase;
}

.category-card h3,
.flavor-card h3,
.process-card h3,
.capability-list h3 {
  margin: var(--space-5) 0 var(--space-3);
  color: var(--page-fg);
  font-size: var(--text-card-title);
  font-weight: var(--weight-regular);
  letter-spacing: -0.025em;
  line-height: var(--leading-snug);
}

.category-card p,
.flavor-card p,
.process-card p,
.capability-list p {
  margin: 0;
  color: var(--page-muted);
  font-size: var(--text-small);
  line-height: 1.62;
}

.category-card__visual {
  position: absolute;
  right: -42px;
  bottom: -58px;
  width: 190px;
  aspect-ratio: 1;
  border: 1px solid rgba(20, 125, 255, 0.16);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(20, 125, 255, 0.18), transparent 62%),
    conic-gradient(from 160deg, rgba(20, 125, 255, 0.08), rgba(140, 200, 255, 0.42), rgba(20, 125, 255, 0.08));
}

.card-link {
  align-self: end;
  margin-top: var(--space-8);
  color: var(--color-primary);
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
}

.flavor-preview {
  background:
    radial-gradient(circle at 78% 8%, rgba(20, 125, 255, 0.13), transparent 28rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(217, 236, 255, 0.42));
}

.flavor-preview__panel {
  padding: clamp(var(--space-6), 5vw, var(--space-16));
  border: 1px solid var(--page-border);
  border-radius: var(--radius-2xl);
  background: rgba(255, 255, 255, 0.66);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.flavor-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

.flavor-tabs a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--space-4);
  border: 1px solid var(--page-border);
  border-radius: var(--radius-pill);
  color: var(--page-fg);
  background: rgba(255, 255, 255, 0.7);
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  transition:
    border-color var(--duration-fast) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.flavor-tabs a:hover {
  border-color: var(--page-border-strong);
  color: var(--color-primary);
  background: var(--serim-white);
}

.flavor-card,
.process-card {
  min-height: 220px;
}

.capability {
  color: var(--color-fg);
  background:
    radial-gradient(circle at 25% 20%, rgba(20, 125, 255, 0.22), transparent 32rem),
    linear-gradient(135deg, var(--serim-navy-980), var(--serim-blue-950));
}

.capability__layout {
  display: grid;
  gap: var(--space-10);
}

.capability__statement h2,
.contact-band h2 {
  color: var(--color-fg);
}

.capability__statement p,
.contact-band p {
  color: var(--color-muted);
}

.capability__statement blockquote {
  max-width: 720px;
  margin: var(--space-8) 0 0;
  padding: 0 0 0 var(--space-5);
  border-left: 2px solid var(--color-primary-hover);
  color: var(--color-muted);
  font-size: clamp(1.18rem, 1.2vw + 0.98rem, 1.72rem);
  font-weight: var(--weight-light);
  letter-spacing: -0.02em;
  line-height: 1.38;
}

.capability-list {
  display: grid;
  gap: var(--space-3);
}

.capability-list article {
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface-soft);
}

.capability-list span {
  color: var(--serim-blue-300);
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

.capability-list h3 {
  color: var(--color-fg);
}

.capability-list p {
  color: var(--color-muted);
}

.contact-band {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
  background:
    radial-gradient(circle at 82% 20%, rgba(74, 163, 255, 0.24), transparent 24rem),
    linear-gradient(135deg, var(--serim-blue-950), var(--serim-navy-980));
}

.contact-band__panel {
  display: grid;
  gap: var(--space-8);
  align-items: center;
}

/* 7. Footer and starter inner pages */
.site-footer {
  padding-block: var(--space-12);
  color: var(--page-muted);
  background: var(--serim-white);
  border-top: 1px solid var(--page-border);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-8);
}

.site-footer p {
  max-width: 420px;
  margin: var(--space-4) 0 0;
  font-size: var(--text-small);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.footer-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-pill);
  color: var(--page-fg);
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
}

.footer-nav a:hover {
  background: var(--page-bg-soft);
  color: var(--color-primary);
}

.page-main {
  padding-block: var(--space-16) var(--space-24);
}

.page-hero,
.content-section {
  width: min(100% - (var(--container-gutter) * 2), var(--container));
  margin-inline: auto;
}

.page-hero {
  padding-block: var(--space-16) var(--space-10);
}

.page-hero h1 {
  margin: 0;
  color: var(--page-fg);
  font-size: var(--text-section);
  font-weight: var(--weight-light);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}

.page-hero p,
.content-section p {
  max-width: 760px;
  color: var(--page-muted);
}

.content-section {
  display: grid;
  gap: var(--space-6);
  padding-block: var(--space-10);
}

.content-section h2 {
  margin: 0;
  font-size: clamp(1.6rem, 2vw, 2.4rem);
  font-weight: var(--weight-regular);
  letter-spacing: -0.025em;
  line-height: var(--leading-snug);
}

/* 8. Responsive */
@media (max-width: 390px) {
  .hero__actions {
    width: auto;
  }

  .hero__button {
    width: auto;
    max-width: calc(100vw - (var(--container-gutter) * 2));
  }

  .hero__copy {
    font-size: 18px;
  }
}

@media (min-width: 48rem) {
  body:not(.home-page) {
    padding-top: calc(var(--nav-height) + var(--space-12));
  }

  .site-header {
    height: var(--nav-height);
    padding: 0 40px;
  }

  .hero__lockup {
    padding-top: 0;
  }

  .hero-text__static {
    font-size: 60px;
    line-height: 1;
    letter-spacing: -0.045em;
  }

  html[lang="ko"] .hero-text__static {
    font-size: 60px;
    letter-spacing: -0.045em;
  }

  html[lang="en"] .hero-text__static {
    font-size: 60px;
    letter-spacing: -0.045em;
  }

  .hero__copy {
    margin-top: 0;
  }

  .button {
    min-height: var(--button-height-lg);
    padding-inline: var(--space-8);
  }

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

  .flavor-card-grid,
  .process-grid,
  .capability-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-band__panel,
  .site-footer__grid {
    grid-template-columns: minmax(0, 1.2fr) auto;
  }
}

@media (min-width: 810px) {
  .hero__marquee {
    bottom: calc(var(--space-1) * 16);
  }
}

@media (min-width: 64rem) {
  .site-header {
    gap: 0;
  }

  .menu-toggle {
    display: none;
  }

  .site-nav {
    position: absolute;
    top: 0;
    left: 50%;
    right: auto;
    flex: 0 0 auto;
    justify-content: center;
    display: flex !important;
    flex-direction: row;
    align-items: center;
    gap: 32px;
    max-height: none;
    height: var(--nav-height);
    padding: 0;
    overflow: visible;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    transform: translateX(-50%);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .site-nav__item {
    position: static;
    flex-direction: row;
    align-items: center;
    height: var(--nav-height);
  }

  .site-nav__link {
    min-height: var(--nav-height);
    padding: 0;
    font-size: 15px;
  }

  .site-nav__dropdown {
    position: absolute;
    top: 100%;
    left: 24px;
    display: grid;
    width: 406px;
    margin-top: 16px;
    padding: 20px;
    visibility: hidden;
    pointer-events: none;
    background-color: oklch(0% 0 0 / 0.4);
    border: 0;
    border-radius: 10px;
    box-shadow: 0 10px 20px 0 oklch(0% 0 0 / 0.05);
    transform: scale(0.95);
    transform-origin: top;
    opacity: 0;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition-duration: 0.2s;
    transition-property: background-color, backdrop-filter, box-shadow, opacity, transform, visibility;
    transition-timing-function: var(--ease-out);
  }

  .site-nav__dropdown::before {
    position: absolute;
    top: -16px;
    right: 0;
    left: 0;
    height: 16px;
    background: transparent;
    content: "";
  }

  .site-nav__item--has-menu:hover .site-nav__dropdown,
  .site-nav__item--has-menu:focus-within .site-nav__dropdown {
    visibility: visible;
    pointer-events: auto;
    transform: scale(1);
    opacity: 1;
    animation: nav-dropdown-enter 0.2s var(--ease-out);
  }

  .site-nav__dropdown:has(a:hover) {
    background-color: oklch(0% 0 0 / 0.2);
    box-shadow: 0 6px 16px oklch(0% 0 0 / 0.08);
    backdrop-filter: blur(40px) saturate(150%);
    -webkit-backdrop-filter: blur(40px) saturate(150%);
  }

  .site-nav__dropdown:has(a:hover) a {
    opacity: 0.25;
  }

  .site-nav__dropdown a {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    min-height: 0;
    padding: 28px 12px;
    border-radius: 8px;
    color: var(--serim-white);
    font-size: 15px;
    font-weight: 500;
    line-height: 1;
    text-transform: none;
    opacity: 1;
    transition-duration: 0.2s;
    transition-property: background-color, opacity;
    transition-timing-function: var(--ease-out);
  }

  .site-nav__dropdown a:hover,
  .site-nav__dropdown a:focus-visible {
    background-color: oklch(22% 0 0 / 0.55);
    opacity: 1;
  }

  .site-nav__dropdown:has(a:hover) a:hover,
  .site-nav__dropdown:has(a:focus-visible) a:focus-visible {
    opacity: 1;
  }

  .site-nav__dropdown-title {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--serim-white);
    font-size: 15px;
    font-weight: 500;
    line-height: 1;
    transition: color 0.3s var(--ease-out);
  }

  .site-nav__dropdown-description {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
    font-weight: var(--fc-regular-weight, 400);
    line-height: 18px;
    transition: color 0.3s var(--ease-out);
    white-space: normal;
  }

  .site-nav__dropdown-arrow {
    display: inline-flex;
    flex: 0 0 auto;
    width: 14px;
    height: 14px;
    overflow: hidden;
  }

  .site-nav__dropdown-arrow svg {
    width: 14px;
    height: 14px;
    transform: translateX(-100%);
    transition: transform 0.3s var(--ease-out) 75ms;
  }

  .site-nav__dropdown a:hover .site-nav__dropdown-arrow svg,
  .site-nav__dropdown a:focus-visible .site-nav__dropdown-arrow svg {
    transform: translateX(0);
  }

  .language-switcher {
    order: 3;
    gap: 18px;
    margin-left: auto;
    margin-right: 0;
  }

  .header-contact-button {
    display: inline-flex;
    margin-left: 18px;
  }

  .site-nav .site-nav__link--contact {
    display: none;
  }

  .category-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .flavor-card-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .process-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .capability__layout {
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.72fr);
    align-items: start;
  }
}

@media (min-width: 90rem) {
  .hero-text__static {
    font-size: 60px;
  }

  html[lang="ko"] .hero-text__static {
    font-size: 60px;
  }

  html[lang="en"] .hero-text__static {
    font-size: 60px;
    letter-spacing: -0.045em;
  }
}

/* 9. Toast message */
.vfds-toast {
  position: fixed;
  z-index: 80;
  bottom: 28px;
  left: 50%;
  box-sizing: border-box;
  margin: 0;
  padding: 12px 18px;
  transform: translate(-50%, 16px) scale(0.96);
  border-radius: 999px;
  background: #1a1e23;
  box-shadow: 0 8px 24px #00000029;
  color: #fafafa;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: var(--fc-regular-weight, 400);
  letter-spacing: normal;
  line-height: 1;
  text-rendering: optimizeLegibility;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.42s, transform 0.42s;
  -webkit-font-smoothing: antialiased;
}

.vfds-toast.is-on {
  transform: translate(-50%) scale(1);
  opacity: 1;
}

/* 10. Cross-document page transition
 * Biograph reference: the previous page stays still while the next page
 * fades in for 200ms. Browsers without cross-document View Transitions
 * keep the normal, immediate multi-page navigation behavior. */
@view-transition {
  navigation: auto;
}

@keyframes serim-page-transition-exit {
  from,
  to {
    opacity: 1;
    transform:
      translate(0, 0)
      scale(1)
      rotateX(0deg)
      rotateY(0deg)
      rotateZ(0deg);
  }
}

@keyframes serim-page-transition-enter {
  from {
    opacity: 0;
    transform:
      translate(0, 0)
      scale(1)
      rotateX(0deg)
      rotateY(0deg)
      rotateZ(0deg);
  }

  to {
    opacity: 1;
    transform:
      translate(0, 0)
      scale(1)
      rotateX(0deg)
      rotateY(0deg)
      rotateZ(0deg);
  }
}

::view-transition-old(root) {
  animation: serim-page-transition-exit 200ms cubic-bezier(0.27, 0, 0.51, 1) both;
}

::view-transition-new(root) {
  animation: serim-page-transition-enter 200ms cubic-bezier(0.27, 0, 0.51, 1) both;
}

::view-transition-old(*),
::view-transition-new(*) {
  mix-blend-mode: normal;
  backface-visibility: hidden;
}

/* 11. Reduced motion */
@media (prefers-reduced-motion: reduce) {
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) {
    animation: none !important;
  }

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

  .hero__marquee-track {
    justify-content: center;
    width: 100%;
    transform: none !important;
    animation: none !important;
  }

  .hero__marquee-set:not(:first-child) {
    display: none;
  }

  .hero__video {
    display: none;
  }

  .vfds-toast,
  .vfds-toast.is-on {
    transform: translate(-50%);
    transition: opacity 0.2s !important;
  }
}