/* 디자인 토큰 — 색이나 둥글기를 바꾸려면 여기만 고치면 된다. */
:root {
  --ink: #122033;
  --ink-soft: #5c6b7a;
  --line: #e2e6ea;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --accent: #0d4f7a;
  --accent-ink: #ffffff;
  --radius: 12px;
  --font: system-ui, -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --wrap: 70rem;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: min(100% - 2.25rem, var(--wrap)); margin-inline: auto; }
a { color: inherit; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-bar {
  display: flex; align-items: center; justify-content: space-between; height: 4rem;
}
.brand { font-weight: 800; letter-spacing: -.03em; text-decoration: none; font-size: 1.15rem; }
.site-nav { display: flex; align-items: center; gap: 1.25rem; }
.site-nav a:not(.btn) { text-decoration: none; color: var(--ink-soft); font-size: .95rem; }
.site-nav a:not(.btn):hover { color: var(--ink); }

.btn {
  display: inline-block; padding: .7rem 1.2rem; border-radius: 8px;
  background: var(--accent); color: var(--accent-ink); text-decoration: none;
  font: inherit; font-weight: 700; font-size: .925rem; border: 0; cursor: pointer;
}
.btn:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, .4); }

.hero {
  position: relative; min-height: min(78vh, 42rem);
  display: grid; align-items: end; color: #f4f7fb;
  background: #122033;
}
.hero-photo {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(18, 32, 51, .25) 10%, rgba(18, 32, 51, .78) 100%);
}
.hero-copy { position: relative; z-index: 1; padding: clamp(4rem, 10vw, 7rem) 0 3.5rem; }
.eyebrow {
  display: inline-block; margin-bottom: 1rem; font-size: .8rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase; color: #c9d6e4;
}
.hero h1 {
  margin: 0 0 1rem; font-size: clamp(2.1rem, 5.4vw, 3.6rem);
  line-height: 1.15; letter-spacing: -.035em;
}
.hero p { margin: 0 0 1.75rem; max-width: 36rem; color: #d5deea; font-size: 1.05rem; }
.hero-actions { display: flex; gap: .7rem; flex-wrap: wrap; }

.stats { background: var(--ink); color: #f4f7fb; }
.stats-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
  padding: 2rem 0;
}
.stat strong { display: block; font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -.03em; }
.stat span { color: #9aabbc; font-size: .9rem; }

.section { padding: clamp(3rem, 7vw, 5rem) 0; }
.section-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 1rem; flex-wrap: wrap; margin-bottom: 1.75rem;
}
.section h2, .about h2, .careers h2, .contact h2 {
  margin: 0 0 .45rem; font-size: clamp(1.45rem, 3vw, 1.9rem); letter-spacing: -.03em;
}
.section-head p, .about p, .careers p, .contact > .wrap > div > p { margin: 0 0 1rem; color: var(--ink-soft); }

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); }
.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.timeline li { display: grid; grid-template-columns: 4.5rem 1fr; gap: 1rem; align-items: baseline; }
.timeline time { font-weight: 700; color: var(--accent); font-size: .9rem; }

.thumb { position: relative; overflow: hidden; background: #d8dee6; }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

.biz-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: .9rem; }
.biz {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.biz .thumb { aspect-ratio: 4 / 3; }
.biz-body { padding: 1.2rem 1.2rem 1.4rem; }
.biz h3 { margin: 0 0 .45rem; font-size: 1.08rem; letter-spacing: -.02em; }
.biz p { margin: 0; color: var(--ink-soft); font-size: .95rem; }

.filters { display: flex; gap: .4rem; flex-wrap: wrap; }
.filter {
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-soft);
  padding: .42rem .9rem; border-radius: 99px; font: inherit; font-size: .85rem; cursor: pointer;
}
.filter[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }

.news-list { display: grid; gap: .7rem; }
.news-item {
  display: grid; grid-template-columns: 6.5rem auto 1fr; gap: .6rem 1rem; align-items: baseline;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem 1.25rem; text-decoration: none;
}
.news-item[hidden] { display: none; }
.news-item:hover { border-color: #c5ced6; }
.news-item time { color: var(--ink-soft); font-size: .85rem; }
.tag {
  font-size: .75rem; font-weight: 700; color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
  border-radius: 99px; padding: .12rem .5rem;
}
.news-item h3 { grid-column: 1 / -1; margin: 0; font-size: 1.05rem; letter-spacing: -.02em; }
.news-item p { grid-column: 1 / -1; margin: 0; color: var(--ink-soft); font-size: .92rem; }
.empty { color: var(--ink-soft); }
.empty[hidden] { display: none; }

.careers { background: var(--surface); }
.careers-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
.careers-photo { aspect-ratio: 16 / 10; border-radius: var(--radius); }
.careers-photo img { position: absolute; inset: 0; }
.roles { margin: 0 0 1.5rem; padding-left: 1.1rem; color: var(--ink); }
.roles li { margin: .35rem 0; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); }
.info { margin: 1.5rem 0 0; display: grid; gap: .85rem; }
.info div { display: grid; grid-template-columns: 4rem 1fr; gap: .75rem; }
.info dt { color: var(--ink-soft); font-weight: 500; }
.info dd { margin: 0; }
.info a { text-decoration: none; }

.inquiry {
  display: grid; gap: .75rem; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem;
}
.inquiry label { display: grid; gap: .35rem; font-size: .85rem; color: var(--ink-soft); }
.inquiry input, .inquiry textarea {
  width: 100%; padding: .7rem .8rem; border: 1px solid var(--line);
  border-radius: 8px; font: inherit; color: var(--ink); background: #fff;
}
.inquiry input:focus, .inquiry textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.form-note { margin: 0; color: var(--ink-soft); font-size: .85rem; }
.form-note[hidden] { display: none; }

.site-footer { border-top: 1px solid var(--line); padding: 2.5rem 0; color: var(--ink-soft); font-size: .9rem; }
.footer-grid { display: flex; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.footer-grid p { margin: .2rem 0; }
.footer-links { display: flex; gap: 1.1rem; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--ink); }
.copyright { margin: 1.5rem 0 0; font-size: .8rem; }

@media (max-width: 860px) {
  .site-nav a:not(.btn) { display: none; }
  .stats-row, .about-grid, .biz-row, .careers-grid, .contact-grid { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: auto 1fr; }
  .news-item time { grid-column: 1; }
  .news-item .tag { grid-column: 2; justify-self: start; }
}