/* 레이아웃·컴포넌트 스타일 — 모바일 375px 기준으로 선언하고 min-width로 확장 */

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 300;
  line-height: 1.75;
  letter-spacing: -0.005em;
  overflow-x: hidden;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0;
  word-break: keep-all;
}

p { margin: 0; word-break: keep-all; }
ul, ol { margin: 0; padding: 0; list-style: none; }
dl, dd, dt { margin: 0; }

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
  transition: color var(--duration-fast) ease;
}

a:hover { color: var(--accent); }

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 20;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
}

.skip-link:focus { left: 0; }

/* ── Header ───────────────────────────────────────── */

/* 콘텐츠 최대 폭 컨테이너 — 배경은 전체 폭, 글은 읽기 좋은 폭으로 */
.shell {
  max-width: var(--shell);
  margin-inline: auto;
}

.site-header {
  padding: calc(1.5rem + env(safe-area-inset-top)) var(--gutter) 1.5rem;
}

.site-header__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  line-height: 1.35;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.site-nav {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.6rem;
  font-size: var(--text-small);
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--ink-soft);
}

.site-nav a:hover { color: var(--accent); }

/* ── Hero ─────────────────────────────────────────── */

.hero {
  position: relative;
  padding: clamp(2rem, 1rem + 6vw, 5rem) var(--gutter) var(--space-section);
  isolation: isolate;
  overflow: clip;
}

.hero__grain {
  position: absolute;
  inset: -20% 0 30%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(120% 80% at 12% 0%, var(--accent-soft) 0%, transparent 62%),
    radial-gradient(90% 70% at 96% 18%, var(--paper-deep) 0%, transparent 70%);
  opacity: 0.9;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero__title {
  font-size: var(--text-hero);
  letter-spacing: -0.035em;
}

.hero__title span { display: block; }

.hero__title em {
  font-style: normal;
  color: var(--accent);
  position: relative;
}

.hero__title em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.1em;
  height: 0.06em;
  background: var(--accent);
  opacity: 0.35;
}

.hero__lede {
  max-width: var(--measure);
  margin-top: 1.75rem;
  font-size: var(--text-lede);
  line-height: 1.7;
  color: var(--ink-soft);
}

.hero__facts {
  display: grid;
  gap: 1.25rem;
  margin-top: clamp(2.5rem, 2rem + 3vw, 4.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
}

.hero__facts dt {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.35rem;
}

.hero__facts dd {
  font-size: var(--text-body);
  color: var(--ink);
}

.hero__facts a { text-decoration-color: var(--rule-strong); }

/* ── Section shell ────────────────────────────────── */

.section {
  padding: 0 var(--gutter) var(--space-section);
}

.section--work {
  background: var(--paper-raised);
  padding-top: var(--space-section);
  border-block: 1px solid var(--rule);
}

.section__head {
  max-width: var(--measure);
  margin-bottom: clamp(2.5rem, 2rem + 2.5vw, 4rem);
}

.section__index {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.9rem;
}

.section__title {
  font-size: var(--text-h2);
}

.section__note {
  margin-top: 1rem;
  color: var(--ink-soft);
}

/* ── Practice ─────────────────────────────────────── */

.practice {
  display: grid;
  gap: 0;
}

.practice__item {
  padding: 1.75rem 0;
  border-top: 1px solid var(--rule);
}

.practice__item:last-child { border-bottom: 1px solid var(--rule); }

.practice__item h3 {
  font-size: var(--text-h3);
  margin-bottom: 0.6rem;
}

.practice__item p {
  color: var(--ink-soft);
  max-width: var(--measure);
}

/* ── Work ─────────────────────────────────────────── */

.work__item {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  column-gap: 1rem;
  row-gap: 1rem;
  padding: 2rem 0;
  border-top: 1px solid var(--rule);
  transition: border-color var(--duration-fast) ease;
}

.work__item:last-child { border-bottom: 1px solid var(--rule); }

.work__num {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.14em;
  color: var(--ink-faint);
}

.work__name {
  font-size: var(--text-work);
  letter-spacing: -0.04em;
  line-height: 1;
}

.work__domain {
  margin-top: 0.6rem;
  font-size: var(--text-small);
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}

.work__meta {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tags li {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.08em;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  color: var(--ink-soft);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: var(--text-small);
  color: var(--accent);
}

.status__dot {
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--accent);
}

/* ── Contact ──────────────────────────────────────── */

.section--contact { padding-top: var(--space-section); }

.contact__mail {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.35rem 1rem;
  padding: 1.5rem 0;
  min-height: 44px;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
  text-decoration: none;
}

.contact__label {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.contact__value {
  grid-column: 1;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 0.9rem + 2.2vw, 2.5rem);
  letter-spacing: -0.03em;
  word-break: break-all;
}

.contact__arrow {
  grid-column: 2;
  grid-row: 1 / span 2;
  font-size: 1.5rem;
  color: var(--accent);
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.contact__mail:hover .contact__arrow,
.contact__mail:focus-visible .contact__arrow { transform: translateX(0.5rem); }

/* ── Footer ───────────────────────────────────────── */

.site-footer {
  padding: clamp(2.5rem, 2rem + 2vw, 4rem) var(--gutter)
           calc(2.5rem + env(safe-area-inset-bottom));
  background: var(--paper-deep);
  border-top: 1px solid var(--rule);
}

.site-footer__privacy {
  max-width: 48rem;
  font-size: var(--text-small);
  line-height: 1.9;
  color: var(--ink-soft);
}

.site-footer__privacy strong {
  font-weight: 500;
  color: var(--ink);
}

.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

/* ── Reveal motion ────────────────────────────────── */

/* JS가 동작할 때만 감춘다 — 비활성 환경에서는 그대로 보여야 한다 */
.js .reveal {
  opacity: 0;
  transform: translateY(1.25rem);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
  transition:
    opacity var(--duration-slow) var(--ease-out-expo),
    transform var(--duration-slow) var(--ease-out-expo);
  transition-delay: calc(var(--d, 0) * 90ms);
}

/* ── Breakpoints ──────────────────────────────────── */

@media (min-width: 48rem) {
  .hero { padding-top: clamp(3rem, 2rem + 5vw, 7rem); }

  .hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
  }

  .practice__item {
    display: grid;
    grid-template-columns: 12rem minmax(0, 1fr);
    gap: 2rem;
    padding: 2.25rem 0;
  }

  .practice__item h3 { margin-bottom: 0; }

  .work__item {
    grid-template-columns: 4rem minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 2rem;
  }

  .work__meta {
    grid-column: 3;
    justify-content: flex-end;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.75rem;
  }

  .contact__mail {
    grid-template-columns: 8rem minmax(0, 1fr) auto;
    align-items: baseline;
    padding: 2.25rem 0;
  }

  .contact__label { grid-column: 1; }
  .contact__value { grid-column: 2; word-break: normal; }
  .contact__arrow { grid-row: 1; grid-column: 3; }
}

@media (min-width: 64rem) {
  .site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: color-mix(in oklab, var(--paper) 88%, transparent);
    backdrop-filter: blur(12px);
  }

  .hero__title { max-width: 16ch; }

  .section__head {
    display: grid;
    grid-template-columns: 4rem minmax(0, 22ch) minmax(0, var(--measure));
    align-items: start;
    column-gap: 2rem;
    max-width: none;
  }

  .section__index { margin-bottom: 0; padding-top: 0.6rem; }
  .section__note { margin-top: 0.6rem; }
}

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

  .js .reveal,
  .js .reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .contact__arrow { transition: none; }
}