/* =========================================================
   이지음 EZUM — style.css
   Layout: 왼쪽 좁은 칸에 섹션 이름, 오른쪽 넓은 칸에 내용. 섹션은 가는 선으로 구분.
   색은 모두 :root 토큰으로 관리하고, 다크 모드는 시스템 설정을 따릅니다.
   ========================================================= */

:root {
  --bg: #FFFFFF;
  --bg-sub: #F5F6F7;
  --ink: #111213;
  --ink-2: #55595F;
  --ink-3: #8B9096;
  --line: #E6E7E9;
  --accent: #2B4BEE;
  --ok: #11804A;
  --warn: #A86500;
  --bad: #C2342B;

  --sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
          "Noto Sans KR", "Malgun Gothic", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --ease: cubic-bezier(.6, 0, .2, 1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0F1011;
    --bg-sub: #18191B;
    --ink: #EDEEEF;
    --ink-2: #A3A7AD;
    --ink-3: #71757B;
    --line: #27292C;
    --accent: #8EA2FF;
    --ok: #46C37F;
    --warn: #E0A443;
    --bad: #F2766C;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0F1011;
  --bg-sub: #18191B;
  --ink: #EDEEEF;
  --ink-2: #A3A7AD;
  --ink-3: #71757B;
  --line: #27292C;
  --accent: #8EA2FF;
  --ok: #46C37F;
  --warn: #E0A443;
  --bad: #F2766C;
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
  letter-spacing: -0.011em;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; }
h1, h2, h3, p, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
svg { display: block; }
::selection { background: var(--ink); color: var(--bg); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap {
  --g: clamp(20px, 5vw, 48px);
  width: 100%;
  max-width: calc(1120px + 2 * var(--g));
  margin-inline: auto;
  padding-left: max(var(--g), env(safe-area-inset-left, 0px));
  padding-right: max(var(--g), env(safe-area-inset-right, 0px));
}

.skip-link {
  position: absolute; left: 16px; top: -48px; z-index: 10;
  padding: 8px 14px; border-radius: 8px;
  background: var(--ink); color: var(--bg);
  font-size: 14px; font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: calc(12px + env(safe-area-inset-top, 0px)); }

/* ---------- Buttons & links ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px; padding-inline: 22px;
  border: 0; border-radius: 999px;
  background: var(--ink); color: var(--bg);
  font: inherit; font-size: 16px; font-weight: 600; letter-spacing: -0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: opacity .2s, background-color .2s;
}
.btn:hover { opacity: .82; }
.btn--line { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); }
.btn--line:hover { opacity: 1; background: var(--bg-sub); }

/* ---------- Header ---------- */
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding-block: 22px;
}
.logo {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 18px; font-weight: 700; letter-spacing: -0.035em;
  text-decoration: none;
}
.logo__mark { width: 26px; height: 26px; }
.site-nav { display: flex; gap: 28px; font-size: 15px; }
.site-nav a { color: var(--ink-2); text-decoration: none; transition: color .2s; }
.site-nav a:hover { color: var(--ink); }

/* ---------- Hero ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  align-items: end;
  gap: 40px;
  padding-block: clamp(64px, 11vw, 148px) clamp(72px, 10vw, 128px);
}
.hero h1 {
  font-size: clamp(2.6rem, 6.6vw, 5.4rem);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.048em;
  text-wrap: balance;
}
.hero h1 .dim { color: var(--ink-3); }
.hero__lead {
  margin-top: 28px;
  max-width: 32em;
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--ink-2);
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; }

.hero__mark { justify-self: end; width: min(100%, 260px); height: auto; color: var(--ink); }
.hero__mark circle {
  transform: rotate(-90deg);
  transform-origin: center; transform-box: fill-box;
  stroke-dasharray: 352; stroke-dashoffset: 0;
  animation: draw 1.3s var(--ease) .15s both;
}
.hero__mark rect {
  transform-origin: 50% 100%; transform-box: fill-box;
  animation: rise .8s var(--ease) .95s both;
}
@keyframes draw { from { stroke-dashoffset: 352; } }
@keyframes rise { from { transform: scaleY(0); } }

/* ---------- Sections ---------- */
.sec__grid {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  gap: 24px 40px;
  padding-block: clamp(56px, 8vw, 104px);
  border-top: 1px solid var(--line);
}
.sec__label {
  align-self: start;
  position: sticky; top: 28px;
  font-size: 15px; font-weight: 600; letter-spacing: -0.01em;
  color: var(--ink-2);
}

.rows li {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
  gap: 6px 32px;
  padding-block: 22px;
  border-bottom: 1px solid var(--line);
}
.rows li:first-child { padding-top: 0; }
.rows h3 { font-size: clamp(1.15rem, 1.6vw, 1.35rem); font-weight: 650; letter-spacing: -0.03em; line-height: 1.45; }
.rows p { color: var(--ink-2); }

.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.steps__n { display: block; font-size: 13px; font-weight: 600; color: var(--ink-3); letter-spacing: 0; }
.steps h3 { margin: 10px 0 8px; font-size: 1.25rem; font-weight: 650; letter-spacing: -0.03em; }
.steps p { color: var(--ink-2); font-size: 16px; }

.contact__lead { color: var(--ink-2); max-width: 32em; }
.mail { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 20px; margin-top: 20px; }
.mail__addr {
  font-size: clamp(1.8rem, 4.6vw, 3.25rem);
  font-weight: 700; letter-spacing: -0.04em; line-height: 1.25;
  text-decoration: none;
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 2px no-repeat;
  transition: background-size .35s var(--ease);
}
.mail__addr:hover { background-size: 100% 2px; }
.mail__copy {
  height: 36px; padding-inline: 14px;
  border: 1px solid var(--line); border-radius: 999px;
  background: transparent; color: var(--ink-2);
  font: inherit; font-size: 14px; font-weight: 600;
  cursor: pointer;
  transition: border-color .2s, color .2s;
}
.mail__copy:hover { border-color: var(--ink-3); color: var(--ink); }

/* ---------- Footer ---------- */
.site-footer__inner {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 24px;
  padding-block: 28px 44px;
  border-top: 1px solid var(--line);
  font-size: 13.5px; color: var(--ink-3);
}
.site-footer__right { display: flex; gap: 20px; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Status page ---------- */
.st-head { padding-block: clamp(48px, 8vw, 96px) clamp(40px, 6vw, 72px); }
.st-head__top { display: flex; align-items: center; gap: 10px; color: var(--ink-2); font-size: 15px; font-weight: 600; }
.st-head h1 {
  margin-top: 16px;
  font-size: clamp(1.9rem, 4.4vw, 3.1rem);
  font-weight: 700; line-height: 1.25; letter-spacing: -0.042em;
  text-wrap: balance;
}
.st-head__sub { margin-top: 14px; max-width: 40em; color: var(--ink-2); }
.st-head .btn { margin-top: 28px; }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 26px; padding-inline: 10px;
  border-radius: 999px;
  font-size: 13px; font-weight: 600;
  color: var(--ink-2);
  box-shadow: inset 0 0 0 1px var(--line);
}
.chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.chip[data-state="ok"] { color: var(--ok); }
.chip[data-state="warn"] { color: var(--warn); }
.chip[data-state="bad"] { color: var(--bad); }

.route {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px;
  margin-top: 40px;
}
.route li {
  position: relative;
  padding: 16px 18px;
  border-radius: 14px;
  box-shadow: inset 0 0 0 1px var(--line);
}
.route li + li::before {
  content: ""; position: absolute; top: 50%; left: -28px; width: 28px; height: 1px;
  background: var(--ink-3);
}
.route b { display: flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 650; }
.route b::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ink-3); }
.route small { display: block; margin-top: 4px; font-size: 14px; color: var(--ink-2); }
.route li[data-state="ok"] b::before { background: var(--ok); }
.route li[data-state="warn"] b::before { background: var(--warn); }
.route li[data-state="off"] { box-shadow: none; border: 1px dashed var(--line); }
.route li[data-state="off"] b, .route li[data-state="off"] small { color: var(--ink-3); }

.spec { display: grid; grid-template-columns: minmax(0, 13em) minmax(0, 1fr); }
.spec dt, .spec dd { padding-block: 14px; border-bottom: 1px solid var(--line); }
.spec dt { color: var(--ink-2); font-size: 15px; }
.spec dd { font-weight: 600; font-variant-numeric: tabular-nums; min-width: 0; }
.spec dd[data-state="ok"] > span { color: var(--ok); }
.spec dd[data-state="warn"] > span { color: var(--warn); }
.tips code { font-family: var(--mono); font-size: .88em; padding: 1px 5px; border-radius: 5px; background: var(--bg-sub); color: var(--ink); }
.spec dd code {
  display: block; margin-top: 2px;
  font-family: var(--mono); font-size: 12.5px; font-weight: 400;
  color: var(--ink-3);
  overflow-wrap: anywhere;
}

.raw { display: grid; gap: 10px; min-width: 0; }
.raw details { border-radius: 12px; box-shadow: inset 0 0 0 1px var(--line); min-width: 0; }
.raw summary { padding: 14px 18px; cursor: pointer; font-weight: 600; font-size: 15px; }
.raw pre {
  margin: 0 18px 18px;
  padding: 14px 16px;
  border-radius: 8px;
  background: var(--bg-sub);
  font-family: var(--mono); font-size: 12.5px; line-height: 1.65;
  color: var(--ink-2);
  overflow-x: auto;
}
.tips { display: grid; gap: 14px; }
.tips li { padding-left: 18px; position: relative; color: var(--ink-2); }
.tips li::before { content: ""; position: absolute; left: 0; top: .78em; width: 6px; height: 1px; background: var(--ink-3); }
.tips b { color: var(--ink); font-weight: 600; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .hero__mark { display: none; }
  .sec__grid { grid-template-columns: 1fr; }
  .sec__label { position: static; }
  .steps { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .site-nav { gap: 18px; font-size: 14px; }
  .rows li { grid-template-columns: 1fr; }
  .route { grid-template-columns: 1fr; gap: 16px; }
  .route li + li::before { top: -16px; left: 26px; width: 1px; height: 16px; }
  .spec { grid-template-columns: 1fr; }
  .spec dt { padding-bottom: 0; border-bottom: 0; font-size: 14px; }
  .spec dd { padding-top: 2px; }
}

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