:root {
  color-scheme: dark light;
  --bg: #0c0b10;
  --bg-2: #121118;
  --surface: #17161f;
  --line: #2b2936;
  --text: #f2f0f7;
  --muted: #a6a2b6;
  --candy-a: #ff5c9d;
  --candy-b: #ff9a5c;
  --candy-c: #ffd95c;
  --danger: #ff6b6b;
  --btn-text: #1a0a12;
  --radius: 14px;
  --pad: clamp(20px, 5vw, 48px);
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Apple SD Gothic Neo",
    "Malgun Gothic", "Noto Sans KR", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, "Cascadia Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
  --candy: linear-gradient(90deg, var(--candy-a), var(--candy-b) 55%, var(--candy-c));
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #faf7f2;
    --bg-2: #f2ede4;
    --surface: #ffffff;
    --line: #e2dbcf;
    --text: #18161d;
    --muted: #5c5869;
    --candy-a: #d4166f;
    --candy-b: #dd5a14;
    --candy-c: #b07f00;
    --danger: #c62828;
    --btn-text: #ffffff;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 1.0625rem/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

:lang(ko) { word-break: keep-all; }

h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; }
code { font: 0.92em var(--mono); background: var(--bg-2); border: 1px solid var(--line); border-radius: 6px; padding: 0.08em 0.36em; }

:focus-visible { outline: 2px solid var(--candy-b); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: 1120px; margin-inline: auto; padding-inline: var(--pad); }
.ruled { background: linear-gradient(var(--line), var(--line)) no-repeat top center / calc(100% - 2 * var(--pad)) 1px; }

.skip { position: absolute; left: -9999px; top: 8px; background: var(--surface); padding: 8px 14px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 8px; }

/* header */

.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 22px; }
.brand { font: 600 1rem var(--mono); text-decoration: none; letter-spacing: -0.01em; }
.brand span { background: var(--candy); -webkit-background-clip: text; background-clip: text; color: transparent; padding-inline: 0.12em; }
.langs { display: flex; gap: 4px; font-size: 0.875rem; }
.langs a { text-decoration: none; color: var(--muted); padding: 6px 10px; border-radius: 999px; }
.langs a:hover { color: var(--text); }
.langs a[aria-current] { color: var(--text); background: var(--surface); box-shadow: inset 0 0 0 1px var(--line); }

/* shared type */

h2 { font-size: clamp(1.7rem, 4.2vw, 2.75rem); line-height: 1.1; letter-spacing: -0.028em; font-weight: 800; text-wrap: balance; }
h3 { font-size: 1.125rem; line-height: 1.3; letter-spacing: -0.01em; font-weight: 700; }
:lang(ko) h1, :lang(ko) h2 { letter-spacing: -0.015em; line-height: 1.22; }
.intro { color: var(--muted); font-size: 1.1875rem; max-width: 46rem; margin-top: 18px; text-wrap: pretty; }
.caption { color: var(--muted); font-size: 0.9375rem; margin-top: 22px; }
section { padding-block: clamp(56px, 9vw, 112px); }
.n { font: 600 0.875rem var(--mono); background: var(--candy); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* buttons */

.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 50px; padding: 0 24px; border-radius: 999px;
  font-weight: 700; font-size: 1rem; text-decoration: none;
  color: var(--btn-text); background: var(--candy);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -12px var(--candy-a); }
.btn.ghost { color: var(--text); background: none; box-shadow: inset 0 0 0 1px var(--line); }
.btn.ghost:hover { box-shadow: inset 0 0 0 1px var(--muted); }
.btn.big { min-height: 60px; padding: 0 30px; font: 700 clamp(0.95rem, 3.6vw, 1.2rem) var(--mono); }

/* hero */

.hero { display: grid; gap: 44px; align-items: center; padding-block: clamp(36px, 7vw, 88px) clamp(48px, 8vw, 96px); }
.kicker { font: 600 0.8125rem var(--mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
h1 { font-size: clamp(2.6rem, 8.4vw, 5.25rem); line-height: 1; letter-spacing: -0.04em; font-weight: 800; margin-top: 18px; text-wrap: balance; }
.candy {
  background: var(--candy); -webkit-background-clip: text; background-clip: text; color: transparent;
  text-decoration: underline wavy var(--danger); text-decoration-thickness: 0.055em; text-underline-offset: 0.14em;
  -webkit-text-decoration-skip-ink: none; text-decoration-skip-ink: none;
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
}
.lead { margin-top: 28px; max-width: 34rem; font-size: clamp(1.0625rem, 2.2vw, 1.25rem); color: var(--muted); }
.lead p + p { margin-top: 14px; color: var(--text); font-weight: 600; }

@media (min-width: 940px) {
  .hero { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 56px; }
}

/* log panel */

.log { min-width: 0; }
.log-bar {
  display: flex; align-items: center; gap: 7px; padding: 12px 16px;
  background: var(--surface); border: 1px solid var(--line); border-bottom: 0;
  border-radius: var(--radius) var(--radius) 0 0;
}
.log-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.log-bar span { margin-left: 8px; font: 500 0.8125rem var(--mono); color: var(--muted); }
.log-view {
  height: 21rem; overflow: hidden; background: var(--bg-2);
  border: 1px solid var(--line); border-radius: 0 0 var(--radius) var(--radius);
  -webkit-mask-image: linear-gradient(#000 78%, transparent); mask-image: linear-gradient(#000 78%, transparent);
}
.log-roll { animation: roll 46s linear infinite; }
.log:hover .log-roll { animation-play-state: paused; }
.log li { display: flex; gap: 12px; padding: 7px 16px; font: 0.875rem/1.5 var(--mono); white-space: nowrap; }
.log .m { color: var(--muted); }
.log .p { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.log .s { color: var(--danger); }
.log figcaption { color: var(--muted); font-size: 0.875rem; margin-top: 14px; }

@keyframes roll { to { transform: translateY(-50%); } }

/* proof */

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0; margin-top: 44px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.tiles li { padding: 26px 24px 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.tiles strong { display: block; font: 700 clamp(2.2rem, 5.4vw, 3.4rem)/1.05 var(--mono); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.tiles span { display: block; margin-top: 12px; color: var(--muted); font-size: 0.9688rem; line-height: 1.5; }

/* risks */

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin-top: 44px; }
.cards li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 26px 28px; }
.cards h3 { margin-top: 14px; font-size: 1.25rem; }
.cards p { margin-top: 10px; color: var(--muted); }

/* law */

.law { background: var(--bg-2); border-block: 1px solid var(--line); }
.split { display: grid; gap: 36px; }
@media (min-width: 900px) {
  .split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 72px; }
}
.law h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); }
.rules li { padding: 20px 0 20px 22px; border-left: 2px solid var(--danger); }
.rules li + li { margin-top: 14px; }
.rules p { margin-top: 6px; color: var(--muted); }

/* review */

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 32px; margin-top: 48px; }
.steps li { border-top: 1px solid var(--line); padding-top: 22px; }
.steps .n { font-size: 2.25rem; line-height: 1; }
.steps h3 { margin-top: 16px; font-size: 1.25rem; }
.steps p { margin-top: 10px; color: var(--muted); }
.sub { margin-top: 64px; font: 600 0.8125rem var(--mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.checks { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); column-gap: 32px; margin-top: 18px; }
.checks li { position: relative; padding: 13px 0 13px 28px; border-bottom: 1px solid var(--line); }
.checks li::before { content: "→"; position: absolute; left: 0; font-family: var(--mono); color: var(--candy-b); }

/* about */

.prose p { font-size: 1.1875rem; max-width: 40rem; }
.prose p + p { margin-top: 16px; color: var(--muted); }

/* contact */

.contact { padding-top: 0; }
.box {
  border: 1px solid transparent; border-radius: 22px;
  background: linear-gradient(var(--surface), var(--surface)) padding-box, var(--candy) border-box;
  padding: clamp(32px, 7vw, 72px) clamp(22px, 6vw, 72px);
}
.box h2 { max-width: 20ch; }
.box p { margin-top: 18px; color: var(--muted); font-size: 1.1875rem; max-width: 42rem; }
.box .cta { margin-top: 32px; }

/* footer */

.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 32px; padding-block: 28px 44px; color: var(--muted); font-size: 0.875rem; }
.foot a { text-underline-offset: 3px; }

/* legal and 404 */

.doc { padding-block: clamp(36px, 7vw, 80px) clamp(56px, 9vw, 104px); max-width: 780px; }
.doc h1 { font-size: clamp(2rem, 6vw, 3.25rem); margin-top: 0; }
.doc h2 { font-size: 1.25rem; letter-spacing: -0.01em; margin-top: 40px; }
.doc p { margin-top: 10px; color: var(--muted); }
.lost ul { margin-top: 24px; display: grid; gap: 14px; font-size: 1.25rem; }
.lost a { font-weight: 700; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .log-roll { animation: none; }
  .btn { transition: none; }
}