/* KRAFTON GRID: public landing page
   Editorial light: warm paper, large type, architectural plates, one red. */

:root {
  --paper: #FAF8F5;
  --panel: #EFEBE6;
  --ink: #161412;
  --ink-2: #4F4943;
  --ink-3: #69625A;
  --rule: #E0DAD2;
  --rule-strong: #161412;
  --tick: #B9B0A4;
  --red: #F9423A;
  --red-ink: #C8261D;
  --gut: clamp(16px, 4.2vw, 64px);
  --max: 1312px;
  --col-gap: clamp(16px, 2.4vw, 32px);
  --font: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", "Malgun Gothic", "Segoe UI", sans-serif;
  color-scheme: light;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

a { color: inherit; }

p { margin: 0; }

:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}

.wrap {
  width: 100%;
  max-width: calc(var(--max) + 2 * var(--gut));
  margin-inline: auto;
  padding-inline: var(--gut);
}

.skip {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 10;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  font-size: 14px;
}
.skip:focus { top: 12px; }

/* the one recurring red mark */
.mark {
  display: inline-block;
  width: 10px;
  height: 10px;
  background: var(--red);
  flex: none;
}

/* ---------- header ---------- */
.top { border-bottom: 1px solid var(--rule); }

.top__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand__ci { display: block; width: auto; height: 32px; }   /* KRAFTON GRID CI lockup */

.top__contact {
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  padding: 8px 16px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  white-space: nowrap;
  transition: background-color .15s ease, color .15s ease;
}
.top__contact span { font-weight: 400; color: var(--ink-3); margin-left: 4px; }
.top__contact:hover { background: var(--ink); color: var(--paper); }
.top__contact:hover span { color: inherit; }

/* ---------- shared ---------- */
.eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--ink);
}

.eyebrow__en {
  font-weight: 400;
  color: var(--ink-3);
  letter-spacing: .06em;
}

/* ---------- hero ---------- */
.hero {
  padding-top: clamp(36px, 3.4vw, 56px);
}

.hero__title {
  margin: clamp(16px, 1.6vw, 24px) 0 0;
  font-size: clamp(40px, 6.25vw, 90px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -.045em;
}

.hero__title span { display: block; }

.hero__aside {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--col-gap);
  align-items: start;
  margin-top: clamp(24px, 2.2vw, 32px);
  padding-top: 20px;
  border-top: 1px solid var(--rule-strong);
}

.hero__lede { grid-column: 1 / span 7; }

.hero__ko,
.hero__en,
.contact__title,
.sec-head__title { text-wrap: balance; }

.hero__ko {
  font-size: clamp(18px, 1.6vw, 23px);
  line-height: 1.4;
  font-weight: 600;
  letter-spacing: -.02em;
}

.hero__en {
  margin-top: 4px;
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.4;
  letter-spacing: -.008em;
  color: var(--ink-2);
}

.pillars {
  grid-column: 9 / span 4;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(12px, 1.6vw, 24px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.pillars li {
  display: grid;
  gap: 1px;
  align-content: start;
  position: relative;
  padding-left: 14px;
  border-left: 1px solid var(--rule);
}
.pillars li::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 3px;
  width: 2px;
  height: 22px;
  background: var(--red);
}

.pillars__ko {
  font-size: clamp(19px, 1.6vw, 23px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.2;
}

.pillars__en {
  font-size: 14px;
  color: var(--ink-3);
}

/* ---------- plates ---------- */
.plate { margin: clamp(28px, 2.4vw, 36px) auto 0; }

.plate__frame {
  position: relative;
  background: var(--panel);
  border-radius: 2px;
  overflow: hidden;
}

.plate__frame img { width: 100%; }

/* registration ticks in the plate corners */
.plate__frame::before,
.plate__frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  pointer-events: none;
}
.plate__frame::before {
  left: 14px;
  top: 14px;
  border-left: 1px solid var(--tick);
  border-top: 1px solid var(--tick);
}
.plate__frame::after {
  right: 14px;
  bottom: 14px;
  border-right: 1px solid var(--tick);
  border-bottom: 1px solid var(--tick);
}

.cap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 12px;
  margin-top: 16px;
  font-size: 15px;
}
.cap .mark { width: 8px; height: 8px; }
.cap__ko { font-weight: 700; }
.cap__en { color: var(--ink-3); }

.plates { margin-top: clamp(56px, 5vw, 72px); }

.sec-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 704px);
  column-gap: var(--col-gap);
  align-items: baseline;
  padding-bottom: clamp(24px, 2.2vw, 32px);
}
.sec-head .eyebrow { grid-column: 1; }

.sec-head__title {
  grid-column: 2;
  margin: 0;
  font-size: clamp(30px, 3.6vw, 52px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -.04em;
}

.sec-head__en {
  display: block;
  margin-top: 8px;
  font-size: clamp(17px, 1.5vw, 21px);
  font-weight: 400;
  letter-spacing: -.01em;
  color: var(--ink-3);
}

.row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 704px);
  column-gap: var(--col-gap);
  margin: 0;
  padding: clamp(20px, 1.8vw, 26px) 0 clamp(32px, 2.8vw, 40px);
  border-top: 1px solid var(--rule-strong);
}

.row__cap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  align-self: start;
  position: sticky;
  top: 32px;
}

.row__cap .mark { margin-bottom: 12px; }

.row__ko {
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -.025em;
}

.row__en {
  font-size: clamp(15px, 1.25vw, 17px);
  color: var(--ink-3);
}

/* ---------- contact ---------- */
.contact {
  margin-top: clamp(24px, 3vw, 48px);
  padding-bottom: clamp(72px, 7.2vw, 112px);
  scroll-margin-top: 24px;
}

.contact > .eyebrow {
  padding-top: 28px;
  border-top: 1px solid var(--rule-strong);
}

.contact__title {
  max-width: 24em;
  margin: clamp(20px, 2.4vw, 32px) 0 0;
  font-size: clamp(21px, 2.2vw, 30px);
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -.025em;
}

.contact__en {
  display: block;
  margin-top: 8px;
  font-size: clamp(16px, 1.35vw, 19px);
  font-weight: 400;
  letter-spacing: 0;
  color: var(--ink-3);
}

.contact__mail {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .3em;
  margin-top: clamp(24px, 3vw, 44px);
  font-size: clamp(32px, 6.4vw, 96px);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -.045em;
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color .15s ease;
}

.contact__addr {
  white-space: nowrap;
  text-decoration: underline;
  text-decoration-color: var(--red);
  text-decoration-thickness: .06em;
  text-underline-offset: .14em;
}

.contact__arrow {
  font-weight: 400;
  color: var(--red);
  transition: transform .2s ease;
}

.contact__mail:hover { color: var(--red-ink); }
.contact__mail:hover .contact__arrow { transform: translateX(.12em); }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--rule); }

.foot__in {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: 28px;
  padding-bottom: 40px;
  font-size: 13px;
  color: var(--ink-3);
}

.foot__brand { display: inline-flex; align-items: center; }
.foot__brand img { display: block; width: auto; height: 104px; }   /* full CI — tall enough to read "Power the undiscovered" */

.foot__copy { font-size: 13px; }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .hero__lede { grid-column: 1 / span 6; }
  .pillars { grid-column: 7 / span 6; }
}

@media (max-width: 900px) {
  .hero__lede,
  .pillars { grid-column: 1 / -1; }
  .pillars { margin-top: 28px; }
  .sec-head { grid-template-columns: minmax(0, 1fr); }
  .sec-head .eyebrow,
  .sec-head__title { grid-column: 1; }
  .sec-head__title { margin-top: 16px; }
  .row { grid-template-columns: minmax(0, 1fr); }
  .row__cap {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 4px 12px;
    margin-bottom: 20px;
  }
  .row__cap { align-items: center; }
  .row__cap .mark { margin-bottom: 0; }
  .row__en { flex-basis: 100%; }
}

@media (max-width: 600px) {
  .top__in { min-height: 60px; }
  .brand__ci { height: 27px; }
  .foot__brand img { height: 88px; }
  .contact__mail { font-size: min(clamp(32px, 6.4vw, 96px), calc((100vw - 2 * var(--gut)) / 8.8)); }   /* the whole address stays on one line down to 280 px */
  .top__contact { padding: 7px 13px; font-size: 13px; }
  .top__contact span { display: none; }
  .hero__title { letter-spacing: -.04em; }
  .row .plate__frame { margin-inline: calc(-1 * var(--gut)); }
  .plate.wrap { padding-inline: 0; }
  .plate .cap { padding-inline: var(--gut); }
  .plate__frame { border-radius: 0; }
  .plate__frame::before { left: 10px; top: 10px; }
  .plate__frame::after { right: 10px; bottom: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}