/* ============================================================
   m4ch77 — personal hub
   색 · 폰트 · 간격 · 모션 토큰은 theme.css 에 있습니다.
   이 파일은 그 토큰으로 이 사이트를 조립합니다.

   구조
     1. 리셋 · 기본
     2. 레이아웃 프리미티브
     3. 모션 (리빌 / 스플릿 / 패럴랙스)
     4. 로더 · 커서 · 빠른 이동 · 점 내비 · 헤더
     5. 히어로 · 터미널 · 티커
     6. 섹션 공통 · 버튼
     7. 각 섹션 (timeline / blog / til / faq)
     8. 푸터
     9. 접근성 · 인쇄
   ============================================================ */

/* ══ 1. 리셋 · 기본 ══════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* 0 이어야 바로가기로 이동했을 때 섹션이 화면을 꽉 채웁니다. */
  scroll-padding-top: 0;
  /* 아코디언이 열리거나 목록이 줄어들 때 브라우저가 스크롤을 몰래
     보정하면 화면이 밀리고 헤더가 튀어나옵니다. 그걸 막습니다. */
  overflow-anchor: none;
  background: var(--bg-1);
  transition: background-color 500ms var(--ease);
}

body {
  font-family: var(--font-ui);
  font-size: clamp(1rem, 0.96rem + 0.16vw, 1.05rem);
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: -0.005em;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  background: var(--bg-1);
}

svg {
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
/* 브랜드 마크는 선이 아니라 면으로 그립니다 */
.svg-defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.hlink-logo { fill: currentColor; stroke: none; }

img { display: block; max-width: 100%; height: auto; }
ul, ol { list-style: none; padding: 0; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
code, kbd, .mono { font-family: var(--font-mono); }
code, kbd { font-size: 0.86em; }
.mono { font-size: 0.94em; }

kbd {
  border: 1px solid var(--line2);
  border-radius: 3px;
  padding: 0.05em 0.32em;
  margin-inline: 0.06em;
  font-size: 0.74em;
  color: var(--dim);
}

::selection { background: var(--accent); color: var(--on-accent); }

/* 반지름을 강제하지 않습니다. 그러면 알약 버튼에 사각 테두리가 생깁니다. */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

* { scrollbar-width: thin; scrollbar-color: var(--line2) transparent; }
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: var(--line2); border-radius: 99px; }

/* 제목 안의 강조 ─ 굵기를 바꾸거나 밑줄을 긋지 않고, 강조색으로
   속을 비운 글자로 처리합니다. 워드마크와 같은 결입니다. */
.thin {
  display: inline-block;
  color: transparent;
  -webkit-text-stroke: 0.032em var(--accent);
  padding-inline: 0.03em; /* 획이 잘리지 않도록 */
}
/* text-stroke 를 못 쓰는 곳에서는 색만 바꿉니다 */
@supports not (-webkit-text-stroke: 1px currentColor) {
  .thin { color: var(--accent); }
}

/* ══ 2. 레이아웃 ═════════════════════════════════════════ */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: fixed;
  left: 50%;
  top: 0;
  z-index: 300;
  transform: translate(-50%, -140%);
  padding: 0.6rem 1.1rem;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  transition: transform var(--t);
}
.skip-link:focus { transform: translate(-50%, 0); }

.bg-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.bg-grain {
  position: fixed;
  inset: 0;
  z-index: 250;
  pointer-events: none;
  opacity: 0.028;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ══ 3. 모션 ═════════════════════════════════════════════ */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--t-slow), transform var(--t-slow);
  transition-delay: var(--d, 0ms);
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

/* 단어 마스크 리빌
   한글 폰트의 세로 여백이 line-height 보다 크면 글자 아래가 잘립니다.
   패딩·마진으로 늘리면 줄 간격이 함께 밀리므로, 레이아웃을 건드리지 않는
   overflow-clip-margin 으로 잘리는 범위만 넓힙니다. */
.w {
  display: inline-block;
  overflow: hidden; /* 구형 브라우저 대비 */
  overflow: clip;
  overflow-clip-margin: 0.3em;
  vertical-align: bottom;
}
/* 글자 단위로 쪼갤 때 단어 중간에서 줄이 바뀌지 않도록 묶습니다. */
.wg { display: inline-block; white-space: nowrap; }
.wi {
  display: inline-block;
  transform: translateY(115%);
  transition: transform 1s var(--ease);
  transition-delay: var(--d, 0ms);
}
.is-in .wi { transform: none; }
.js [data-split]:not(.is-in) { pointer-events: none; }

/* ══ 4. 로더 ═════════════════════════════════════════════ */
.loader {
  position: fixed;
  inset: 0;
  z-index: 280;
  display: grid;
  place-items: center;
  transition: transform 900ms var(--ease), opacity 400ms linear;
}
.loader.is-done {
  transform: translateY(-101%);
  pointer-events: none;
}
.no-loader .loader, .no-js .loader { display: none; }

.loader-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}
.loader-mark {
  font-weight: 600;
  letter-spacing: -0.02em;
  min-width: 7ch;
}
.loader-bar {
  display: block;
  width: clamp(6rem, 22vw, 14rem);
  height: 1px;
  background: var(--line);
  overflow: hidden;
}
.loader-bar i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
}
.loader-count { color: var(--faint); font-variant-numeric: tabular-nums; }

/* ══ 4b. 커서 ════════════════════════════════════════════
   점과 링만 반전(blend)으로 그립니다. blend 는 매 프레임 배경을
   다시 합성하므로 면적이 클수록 비쌉니다. 카드에 달라붙는 큰
   테두리는 blend 없이 서피스 색을 씁니다. */
.cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 270;
  pointer-events: none;
  display: none;
  mix-blend-mode: difference;
  color: #fff;
}
.cursor.is-on { display: block; }

.cursor-dot,
.cursor-ring {
  position: absolute;
  top: 0;
  left: 0;
  will-change: transform;
}

.cursor-dot {
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  border-radius: 50%;
  background: #fff;
  transition: opacity var(--t-fast), width var(--t-fast), height var(--t-fast);
}
.cursor-ring {
  width: 30px;
  height: 30px;
  margin: -15px 0 0 -15px;
  border: 1px solid #fff;
  border-radius: 50%;
  opacity: 0.72;
  transition: width var(--t), height var(--t), margin var(--t), opacity var(--t-fast);
}
.cursor.is-hot .cursor-ring {
  width: 44px;
  height: 44px;
  margin: -22px 0 0 -22px;
  opacity: 1;
}
.cursor.is-hot .cursor-dot { width: 3px; height: 3px; margin: -1.5px 0 0 -1.5px; }
.cursor.is-text .cursor-ring { opacity: 0; }
.cursor.is-text .cursor-dot {
  width: 2px;
  height: 22px;
  margin: -11px 0 0 -1px;
  border-radius: 1px;
}
.cursor.is-down .cursor-ring { width: 22px; height: 22px; margin: -11px 0 0 -11px; }

/* 카드 위에서는 테두리가 대상에 달라붙습니다.
   위치는 매 프레임 다시 재므로 트랜지션을 걸지 않습니다.
   (걸면 카드가 옆으로 흐를 때 테두리가 따라오다 어긋나 보입니다) */
.cursor-frame {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 269;
  width: 0;
  height: 0;
  pointer-events: none;
  border: 1px solid var(--fg);
  border-radius: 12px;
  background: transparent !important;
  opacity: 0;
  will-change: transform, width, height;
  transition: opacity var(--t-fast), border-color 500ms var(--ease);
}
.cursor-frame.is-on { opacity: 0.4; }
.cursor.is-framed .cursor-ring { opacity: 0; }

.cursor-label {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 269;
  padding-left: 1.3rem;
  padding-top: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg);
  background: transparent !important;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  will-change: transform;
  transition: opacity var(--t-fast), color 500ms var(--ease);
}
.cursor-label.is-on { opacity: 0.85; }

/* ══ 4c. 빠른 이동 ═══════════════════════════════════════ */
.palette {
  position: fixed;
  inset: 0;
  z-index: 260;
  display: grid;
  place-items: start center;
  padding: clamp(3rem, 12vh, 8rem) var(--gutter) 2rem;
}
.palette[hidden] { display: none; }
.palette-scrim {
  position: absolute;
  inset: 0;
  background: rgba(6, 7, 10, 0.62);
  backdrop-filter: blur(7px);
  opacity: 0;
  transition: opacity var(--t);
}
.palette.is-open .palette-scrim { opacity: 1; }

.palette-panel {
  position: relative;
  width: min(100%, 36rem);
  border: 1px solid var(--line2);
  border-radius: var(--radius-lg);
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, 0.6);
  overflow: hidden;
  opacity: 0;
  transform: translateY(-12px) scale(0.985);
  transition: opacity var(--t), transform var(--t);
}
.palette.is-open .palette-panel { opacity: 1; transform: none; }

.palette-head {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line);
}
.palette-sign { width: 1rem; height: 1rem; color: var(--faint); flex-shrink: 0; }
.palette-input {
  flex: 1;
  min-width: 0;
  background: none;
  border: 0;
  outline: none;
  font-size: 0.98rem;
}
.palette-input::placeholder { color: var(--faint); }
.palette-count {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}
.palette-close {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--faint);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.12rem 0.4rem;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.palette-close:hover { color: var(--fg); border-color: var(--line2); }

.palette-list {
  max-height: min(26rem, 54vh);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0.4rem;
}
.palette-group {
  padding: 0.7rem 0.7rem 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}
.palette-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.7rem;
  border-radius: 9px;
  cursor: pointer;
}
.palette-item[aria-selected="true"] { background: var(--card); }
.palette-item[aria-selected="true"] .pi-go { opacity: 1; transform: none; }
.pi-icon {
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: var(--faint);
}
.palette-item[aria-selected="true"] .pi-icon { color: var(--accent); border-color: var(--accent); }
.pi-body { min-width: 0; display: flex; flex-direction: column; }
.pi-name {
  font-size: 0.92rem;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pi-name mark { background: none; color: var(--accent); font-weight: 600; }
.pi-hint {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pi-go {
  margin-left: auto;
  flex-shrink: 0;
  width: 0.95rem;
  height: 0.95rem;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--t-fast), transform var(--t-fast);
}
.palette-empty { padding: 1.6rem 0.7rem; color: var(--faint); font-size: 0.9rem; text-align: center; }
.palette-empty span { display: block; margin-top: 0.4rem; font-size: 0.78rem; }

.palette-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  padding: 0.6rem 1rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--faint);
}
.palette-foot-end { margin-left: auto; }

/* ══ 4d. 섹션 점 내비 ════════════════════════════════════ */
.dotnav {
  position: fixed;
  right: max(0.9rem, calc(var(--gutter) * 0.36));
  top: 50%;
  translate: 0 -50%;
  z-index: 190;
  display: none;
  flex-direction: column;
  gap: 0.1rem;
  padding: 0.35rem 0.2rem;
  /* 뒤 섹션의 서피스를 따라갑니다. 배경은 칠하지 않습니다. */
  background: transparent !important;
  visibility: hidden;
  opacity: 0;
  transform: translateX(8px);
  transition: opacity var(--t), transform var(--t), visibility var(--t), color 500ms var(--ease);
}
@media (min-width: 72rem) { .dotnav { display: flex; } }
.dotnav.is-on { visibility: visible; opacity: 1; transform: none; }

.dotnav a {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.55rem;
  padding: 0.2rem 0;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.02em;
  color: var(--dim);
}
.dotnav-label {
  opacity: 0;
  transform: translateX(6px);
  transition: opacity var(--t-fast), transform var(--t-fast), color var(--t-fast);
  white-space: nowrap;
}
.dotnav a:hover .dotnav-label,
.dotnav a[aria-current="true"] .dotnav-label { opacity: 1; transform: none; }
.dotnav a[aria-current="true"] .dotnav-label { color: var(--fg); }
.dotnav-tick {
  display: block;
  width: 14px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
  transition: width var(--t), background var(--t), opacity var(--t);
}
.dotnav a:hover .dotnav-tick { width: 22px; opacity: 1; }
.dotnav a[aria-current="true"] .dotnav-tick { width: 26px; background: var(--accent); opacity: 1; }

/* ══ 4e. 헤더 ════════════════════════════════════════════ */
.header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 200;
  background: transparent !important;
  transition: color 500ms var(--ease), transform var(--t);
}
.header.is-hidden { transform: translateY(-101%); }
.header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--bg);
  opacity: 0;
  transition: opacity var(--t);
  border-bottom: 1px solid transparent;
}
.header.is-stuck::before { opacity: 0.9; border-bottom-color: var(--line); backdrop-filter: blur(14px); }

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: 3.9rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: -0.02em;
  margin-right: auto;
}
.brand-mark {
  width: 8px;
  height: 8px;
  background: var(--accent);
  transition: transform var(--t), border-radius var(--t);
}
.brand:hover .brand-mark { transform: rotate(45deg) scale(1.2); border-radius: 50%; }
.brand-text { min-width: 6.2ch; }

.header-nav {
  display: none;
  gap: 1.45rem;
  font-size: 0.84rem;
}
@media (min-width: 56rem) { .header-nav { display: flex; } }
.header-nav a {
  position: relative;
  color: var(--dim);
  padding-block: 0.25rem;
  transition: color var(--t-fast);
}
.header-nav a::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t);
}
.header-nav a:hover,
.header-nav a[aria-current="true"] { color: var(--fg); }
.header-nav a:hover::after,
.header-nav a[aria-current="true"]::after { transform: scaleX(1); }

.header-right { display: flex; align-items: center; gap: 0.6rem; }

.kbd-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.34rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  font-size: 0.76rem;
  color: var(--dim);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.kbd-btn:hover { border-color: var(--line2); color: var(--fg); }
.kbd-btn-text { display: none; }
@media (min-width: 40rem) { .kbd-btn-text { display: inline; } }

.lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.1rem;
  height: 2rem;
  padding-inline: 0.4rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--dim);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.lang-btn:hover { border-color: var(--accent); color: var(--accent); }

.icon-btn {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color var(--t-fast), transform var(--t);
}
.icon-btn:hover { border-color: var(--line2); transform: rotate(180deg); }
.icon-btn svg { width: 0.95rem; height: 0.95rem; color: var(--dim); }

.scroll-progress {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
}
.scroll-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
}

/* ══ 5. 히어로 ═══════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  /* 헤더(약 3.9rem)를 피하면서 한 화면에 들어가도록 */
  padding-block: clamp(5.5rem, 11vh, 6.5rem) clamp(3.5rem, 7vh, 4.5rem);
  overflow: clip;
}
.hero .shell { position: relative; z-index: 1; }

.hero-grid { display: grid; gap: clamp(2.2rem, 5vw, 3.5rem); }
@media (min-width: 64rem) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
    gap: clamp(2.5rem, 4vw, 4rem);
  }
}

.hero-eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--dim);
  margin-bottom: clamp(1.2rem, 2.5vw, 1.8rem);
}
.avail {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.22rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  color: var(--fg);
}
.avail-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: ping 2.6s ease-out infinite;
}
@keyframes ping {
  0% { box-shadow: 0 0 0 0 var(--accent-soft); }
  70% { box-shadow: 0 0 0 9px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.hero-meta-item { color: var(--faint); }
#clock { font-variant-numeric: tabular-nums; }

.hero-display {
  font-size: clamp(2.4rem, 1.5rem + 4.4vw, 5rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  font-weight: 300;
  margin-bottom: clamp(1.4rem, 3vw, 2rem);
}
/* 슬롯머신처럼 한 글자씩 멈추는 닉네임 */
.hero-name {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: -0.055em;
  white-space: nowrap;
}
.jp-ch {
  display: inline-block;
  /* 모노스페이스라 폭이 일정합니다. 굴러도 줄이 흔들리지 않습니다. */
}
.jp-ch.is-spin { color: var(--dim); }
.jp-ch.is-locked { animation: jpLock 420ms var(--ease); }
@keyframes jpLock {
  0% { transform: translateY(-0.16em) scale(1.22); color: var(--accent); }
  55% { transform: translateY(0.03em) scale(0.98); }
  100% { transform: none; }
}

.hero-lede {
  color: var(--dim);
  font-size: clamp(0.98rem, 0.94rem + 0.24vw, 1.08rem);
  max-width: 38ch;
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: clamp(1.4rem, 2.5vw, 1.9rem);
}

/* 로고 + 풀네임이 들어가는 작은 칩 */
.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: clamp(1.3rem, 2.5vw, 1.7rem);
}
.hlink {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  padding: 0.32rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 99px;
  font-size: 0.78rem;
  color: var(--dim);
  transition: color var(--t-fast), border-color var(--t-fast), background-color var(--t-fast);
}
.hlink:hover {
  color: var(--fg);
  border-color: var(--line2);
  background-color: var(--card);
}
.hlink-logo { width: 1em; height: 1em; flex-shrink: 0; }

/* 오른쪽 터미널 */
.hero-term { position: relative; min-width: 0; }

.hero-wordmark {
  position: absolute;
  left: 50%;
  bottom: -0.16em;
  translate: -50% 0;
  z-index: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: min(21vw, 19rem);
  line-height: 0.8;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1px var(--line);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}

.scroll-cue {
  position: absolute;
  left: var(--gutter);
  bottom: 1.4rem;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  color: var(--faint);
}
.scroll-cue-line {
  display: block;
  width: 42px;
  height: 1px;
  background: var(--line2);
  position: relative;
  overflow: hidden;
}
.scroll-cue-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--accent);
  animation: sweep 2.2s var(--ease-io) infinite;
}
@keyframes sweep {
  0% { transform: translateX(-100%); }
  60%, 100% { transform: translateX(100%); }
}

/* ══ 5b. 터미널 ══════════════════════════════════════════ */
.term {
  position: relative;
  border: 1px solid var(--line2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--card);
  transition: border-color var(--t);
}
.term:focus-within { border-color: var(--accent); }

.term-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 0.85rem;
  border-bottom: 1px solid var(--line);
}
.tdot { width: 8px; height: 8px; border-radius: 50%; background: var(--line2); flex-shrink: 0; }
.tdot-a { background: var(--accent); }
.term-title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.term-clear {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--faint);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.1rem 0.42rem;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.term-clear:hover { color: var(--fg); border-color: var(--line2); }

.term-screen {
  height: clamp(16rem, 42vh, 23rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0.9rem 1.05rem;
  font-family: var(--font-mono);
  font-size: clamp(0.74rem, 0.7rem + 0.18vw, 0.82rem);
  line-height: 1.75;
  cursor: text;
}
.term-out > * { white-space: pre-wrap; word-break: break-word; }
.term-echo { color: var(--fg); }
.term-echo .p { color: var(--accent); margin-right: 0.5rem; }
.term-res { color: var(--dim); }
.term-res .hl { color: var(--fg); }
.term-res .key { color: var(--accent); }
.term-res .mut { color: var(--faint); }
.term-res .err { color: var(--sig-err); }
.term-res .warn { color: var(--sig-warn); }
.term-res a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.term-block { margin-block: 0.3rem 0.65rem; }

.term-line { display: flex; align-items: baseline; gap: 0.5rem; }
.term-prompt { white-space: nowrap; cursor: text; }
.p-user { color: var(--accent); }
.p-at, .p-path, .p-sign { color: var(--faint); }
.p-host { color: var(--fg); }
.term-input {
  flex: 1;
  min-width: 4ch;
  background: none;
  border: 0;
  outline: none;
  caret-color: var(--accent);
}
.term-hint {
  padding: 0.5rem 1.05rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--faint);
}
.term-hint code { color: var(--accent); }

/* ══ 5c. 티커 ════════════════════════════════════════════ */
.ticker {
  overflow: hidden;
  padding-block: 0.62rem;
  border-block: 1px solid var(--line);
  color: var(--dim);
}
.ticker-track {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  width: max-content;
  animation: marquee 34s linear infinite;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.ticker-item {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.ticker-sep { opacity: 0.4; font-size: 0.7rem; }

/* ══ 6. 섹션 공통 ─ 한 화면을 채웁니다 ═══════════════════ */
.section {
  position: relative;
  display: grid;
  align-content: center;
  min-height: 100svh;
  /* 한 화면에 들어가야 스크롤 정렬이 자연스럽습니다. */
  padding-block: clamp(4.5rem, 10vh, 7rem);
  overflow: clip; /* hidden 이 아니라 clip — sticky 가 살아 있어야 합니다. */
}
.section > .shell { position: relative; z-index: 1; }

.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem 2rem;
  flex-wrap: wrap;
  margin-bottom: clamp(1.6rem, 3.5vw, 2.6rem);
}
.sec-head .section-title { margin-bottom: 0; }
.sec-head .section-tagline { margin-top: 0.7rem; }

.section-kicker {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 1.1rem;
}
.section-kicker .num { color: var(--faint); }
.section-kicker .num::after {
  content: "";
  display: inline-block;
  width: 1.4rem;
  height: 1px;
  margin-left: 0.55rem;
  vertical-align: middle;
  background: var(--line2);
}

/* 큰 제목은 영어로, 설명은 그 아래 작은 한글로 */
.section-title {
  font-size: clamp(2rem, 1.4rem + 2.8vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
  font-weight: 600;
  margin-bottom: clamp(1.75rem, 4vw, 3rem);
  max-width: 24ch;
}
.section-tagline {
  color: var(--dim);
  font-size: 0.92rem;
  max-width: 42ch;
}

.sub-head {
  margin-top: clamp(2.2rem, 4.5vw, 3.2rem);
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
}

.section-aside {
  margin-top: clamp(1.5rem, 3vw, 2.2rem);
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--faint);
}
.section-aside code {
  color: var(--dim);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.05em 0.3em;
}

/* 스크롤 속도에 반응하는 글자 (JS 가 transform 을 씁니다)
   will-change 를 상시로 걸면 레이어가 계속 떠 있어 1px 테두리와
   글자가 흐릿해집니다. 움직일 때만 transform 이 붙게 둡니다. */
[data-flow] { transform-origin: left center; }

/* ══ 6b. 버튼 ────────────────────────────────────────────
   채움을 별도 레이어(::before)로 올리면 테두리와 반지름이
   미세하게 어긋나 테두리가 겹쳐 보입니다. 배경 자체를 키웁니다. */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.74rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 99px;
  font-size: 0.88rem;
  font-weight: 500;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-position: 50% 100%;
  background-size: 100% 0%;
  transition: background-size var(--t), color var(--t),
              border-color var(--t), transform var(--t-fast);
}
.btn svg { width: 0.95rem; height: 0.95rem; transition: transform var(--t); }
.btn:hover { background-size: 100% 100%; color: var(--on-accent); border-color: var(--accent); }
.btn:hover svg { transform: translateX(3px); }
.btn:active { transform: scale(0.985); }

.btn-solid { background-color: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn-line { border-color: var(--line2); color: var(--fg); }

/* ══ 7a. TIMELINE + LOG ══════════════════════════════════ */
.tl-grid { display: grid; gap: clamp(2rem, 5vw, 3.5rem); }
@media (min-width: 62rem) {
  .tl-grid { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: clamp(3rem, 6vw, 5rem); }
  .tl-side .sub-head { margin-top: 0; }
}

.timeline { position: relative; border-left: 1px solid var(--line); }
.timeline li {
  position: relative;
  display: grid;
  gap: 0.2rem 1.5rem;
  padding: 0 0 1.9rem 1.75rem;
}
@media (min-width: 44rem) { .timeline li { grid-template-columns: 5rem 1fr; } }
.timeline li::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 0.6rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--line2);
  transition: background var(--t), border-color var(--t);
}
.timeline li:hover::before { background: var(--accent); border-color: var(--accent); }
.tl-year { font-family: var(--font-mono); font-size: 0.74rem; color: var(--accent); }
.tl-body { display: flex; flex-direction: column; gap: 0.15rem; }
.tl-title { font-size: 1.05rem; font-weight: 500; }
.tl-desc { color: var(--dim); font-size: 0.87rem; }

.log-list { border-top: 1px solid var(--line); }
.log-list li {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.2rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line);
}
.log-kind {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  color: var(--dim);
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 0.1rem 0.5rem;
}
.log-title { color: var(--dim); }
.log-when { font-family: var(--font-mono); font-size: 0.7rem; color: var(--faint); }

/* ══ 7b. BLOG 캐러셀 ═════════════════════════════════════ */
.carousel-nav { display: flex; align-items: center; gap: 0.7rem; }
.slider-count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}
.slider-count #blog-current { color: var(--accent); }
.slider-slash { margin-inline: 0.2rem; }

.rail-btn {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line2);
  border-radius: 50%;
  transition: background-color var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}
.rail-btn:hover { background-color: var(--fg); color: var(--bg); border-color: var(--fg); }
.rail-btn svg { width: 1rem; height: 1rem; }
.rail-btn:disabled { opacity: 0.28; cursor: not-allowed; }
.rail-btn:disabled:hover { background-color: transparent; color: inherit; border-color: var(--line2); }

.carousel { margin-top: clamp(1.8rem, 3.5vw, 2.6rem); }
.carousel-track {
  --cgap: clamp(1rem, 2vw, 1.5rem);
  display: flex;
  gap: var(--cgap);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: 0.4rem;
}
.carousel-track::-webkit-scrollbar { display: none; }
.carousel-track.is-dragging { scroll-snap-type: none; cursor: grabbing; }

.bcard {
  flex: 0 0 min(82vw, 21rem);
  scroll-snap-align: start;
}
@media (min-width: 48rem) { .bcard { flex-basis: calc((100% - var(--cgap)) / 2); } }
@media (min-width: 74rem) { .bcard { flex-basis: calc((100% - 2 * var(--cgap)) / 3); } }

.bcard-hit {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--card);
  transition: border-color var(--t), transform var(--t);
}
.bcard-hit:hover { border-color: var(--line2); transform: translateY(-4px); }

.bcard-media {
  position: relative;
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--card);
}
.bcard-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.01);
  transition: transform 900ms var(--ease), filter var(--t);
  filter: saturate(0.9);
}
.bcard-hit:hover .bcard-media img { transform: scale(1.06); filter: saturate(1.05); }
.bcard-badge {
  position: absolute;
  left: 0.8rem;
  top: 0.8rem;
  padding: 0.12rem 0.5rem;
  border-radius: 99px;
  background: rgba(10, 11, 13, 0.72);
  backdrop-filter: blur(4px);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  color: #e6e8ec;
}

.bcard-body {
  display: flex;
  flex-direction: column;
  gap: 0.42rem;
  padding: 1.1rem 1.15rem 1.2rem;
  flex: 1;
}
.bcard-meta {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--faint);
}
.bcard-meta i { font-style: normal; opacity: 0.5; }
.bcard-title {
  font-size: 1.1rem;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.02em;
  transition: color var(--t-fast);
}
.bcard-hit:hover .bcard-title { color: var(--accent); }
.bcard-excerpt { color: var(--dim); font-size: 0.87rem; line-height: 1.6; }
.bcard-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: auto; padding-top: 0.75rem; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--faint);
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 0.08rem 0.45rem;
}

/* 마지막 칸 ─ 블로그로 넘어가는 더보기 카드 */
.bcard-more .bcard-hit {
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 2rem 1.2rem;
  border-style: dashed;
  text-align: center;
}
.bcard-more .bcard-hit:hover {
  border-style: solid;
  border-color: var(--accent);
}
.bcard-more-icon {
  display: grid;
  place-items: center;
  width: 2.8rem;
  height: 2.8rem;
  margin-bottom: 0.3rem;
  border: 1px solid var(--line2);
  border-radius: 50%;
  color: var(--dim);
  transition: color var(--t), border-color var(--t), transform var(--t);
}
.bcard-more-icon svg { width: 1.05rem; height: 1.05rem; }
.bcard-more .bcard-hit:hover .bcard-more-icon {
  color: var(--accent);
  border-color: var(--accent);
  transform: translate(3px, -3px);
}
.bcard-more-title {
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  transition: color var(--t-fast);
}
.bcard-more .bcard-hit:hover .bcard-more-title { color: var(--accent); }
.bcard-more-sub { font-family: var(--font-mono); font-size: 0.68rem; color: var(--faint); }

.carousel-foot {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-top: 0.9rem;
}
/* 점은 카드 수만큼 두고, 지금 보이는 카드들을 캡슐 하나가 감쌉니다.
   3장씩 보이므로 마지막 점들도 캡슐 안에 들어옵니다. */
.carousel-dots {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.carousel-dots button {
  width: 1.4rem;
  height: 2px;
  border-radius: 2px;
  background-color: var(--line2);
  transition: background-color var(--t-fast);
}
.carousel-dots button:hover { background-color: var(--dim); }
.cd-thumb {
  position: absolute;
  top: 50%;
  left: 0;
  width: 0;
  height: 3px;
  margin-top: -1.5px;
  border-radius: 3px;
  background: var(--accent);
  pointer-events: none;
  transition: transform 420ms var(--ease), width 420ms var(--ease);
}
.carousel-progress { flex: 1; height: 1px; background: var(--line); }
.carousel-progress span {
  display: block;
  height: 100%;
  width: 30%;
  background: var(--line2);
  transition: width 120ms linear, transform 120ms linear;
  transform-origin: left;
}

/* ══ 7c. TIL ─ 잔디 + 하루 한 줄 ═════════════════════════ */
.til-stats { display: flex; flex-wrap: wrap; gap: 1rem 2.2rem; }
.til-stats dt {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.25rem;
}
.til-stats dd {
  display: flex;
  align-items: baseline;
  gap: 0.15rem;
  font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.2rem);
  font-weight: 200;
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.til-stats dd i { font-style: normal; font-size: 0.68rem; color: var(--faint); }

.til-heat-wrap {
  position: relative; /* 날짜 쪽지(.til-tip)의 기준 */
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin-top: clamp(1.6rem, 3vw, 2.2rem);
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
}
.til-heat {
  display: flex;
  gap: 3px;
  overflow-x: auto;
  overflow-y: hidden; /* x 만 auto 로 두면 y 도 auto 로 계산됩니다. 의도를 적어 둡니다 */
  scrollbar-width: none;
  /* 칸은 hover·선택 시 1.35 배로 커지고, 선택 링·포커스 링이 더 나갑니다.
     스크롤 컨테이너는 패딩 박스에서 자르므로 사방에 그만큼 여유를 둬야
     맨 아랫줄(토요일) 칸의 테두리 밑변이 잘리지 않습니다. */
  padding: 8px;
  margin-inline: -8px; /* 늘린 좌우 패딩만큼 당겨서 첫 칸 위치는 그대로 둡니다 */
}
.til-heat::-webkit-scrollbar { display: none; }
.til-col { display: flex; flex-direction: column; gap: 3px; }

/* 칸 하나가 하루. 기록이 있는 칸만 누를 수 있는 버튼입니다. */
.til-cell {
  display: block;
  width: 11px;
  height: 11px;
  padding: 0;
  border: 0;
  border-radius: 2px;
  background-color: var(--line);
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}
.til-cell.lv1 { background-color: var(--accent); opacity: 0.38; }
.til-cell.lv2 { background-color: var(--accent); opacity: 0.68; }
.til-cell.lv3 { background-color: var(--accent); opacity: 1; }
.til-cell.is-future { background-color: transparent; box-shadow: inset 0 0 0 1px var(--line); }
button.til-cell { cursor: pointer; }
/* 기록이 없는 칸도 날짜 쪽지가 뜨므로 hover 반응은 모든 칸에 둡니다. */
.til-cell:hover { transform: scale(1.35); }
/* 11px 칸에 기본 offset(3px)은 과해서, 스크롤 컨테이너 밖으로 나갑니다. */
.til-cell:focus-visible { outline-offset: 2px; }
button.til-cell.is-sel {
  transform: scale(1.35);
  box-shadow: 0 0 0 2px var(--bg), 0 0 0 3px var(--accent);
}

/* 칸 위에 뜨는 작은 날짜 쪽지. 브라우저 기본 title 은 늦게 뜨고
   서식을 줄 수 없어서 직접 띄웁니다. (main.js 11 TIL 이 채웁니다) */
.til-tip {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 3;
  padding: 0.18rem 0.42rem;
  border: 1px solid var(--line2);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  line-height: 1.4;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, calc(-100% - 7px));
  transition: opacity var(--t-fast);
}
.til-tip.is-below { transform: translate(-50%, 7px); }
.til-tip.is-on { opacity: 1; }

.til-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--faint);
}
.tlg-scale { display: inline-flex; align-items: center; gap: 0.3rem; }
.til-legend i {
  display: block;
  width: 11px;
  height: 11px;
  border-radius: 2px;
  background-color: var(--line);
}
.til-legend .lv1 { background-color: var(--accent); opacity: 0.38; }
.til-legend .lv2 { background-color: var(--accent); opacity: 0.68; }
.til-legend .lv3 { background-color: var(--accent); opacity: 1; }


/* 하루를 골랐을 때 뜨는 줄 */
.til-filter {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.8rem;
  margin-top: clamp(1.1rem, 2.5vw, 1.5rem);
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--accent);
  border-radius: 99px;
  background: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.7rem;
}
.til-filter[hidden] { display: none; }
.tf-key {
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}
.tf-date { color: var(--fg); font-variant-numeric: tabular-nums; }
.tf-count { color: var(--dim); }
.tf-clear {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--accent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast);
}
.tf-clear:hover { border-bottom-color: var(--accent); }

.til-list { margin-top: clamp(1.4rem, 3vw, 2rem); border-top: 1px solid var(--line); }
/* display:grid 가 [hidden] 의 display:none 을 이기므로 명시적으로 끕니다. */
.til-item[hidden] { display: none !important; }
.til-item {
  display: grid;
  gap: 0.3rem 1.4rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
  transition: padding-inline var(--t);
}
@media (min-width: 44rem) {
  .til-item { grid-template-columns: 8rem 1fr; align-items: baseline; }
  .til-item:hover { padding-inline: 0.7rem 0; }
}
.til-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.til-body { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.4rem 0.7rem; }
.til-tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  color: var(--dim);
  border: 1px solid var(--line);
  border-radius: 99px;
  padding: 0.06rem 0.45rem;
  flex-shrink: 0;
}
.til-text { color: var(--dim); font-size: 0.92rem; flex: 1; min-width: 16ch; }

/* ══ 7d. FAQ ═════════════════════════════════════════════ */
.faq { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.05rem 0;
  cursor: pointer;
  font-size: 1.02rem;
  font-weight: 500;
  list-style: none;
  transition: color var(--t-fast);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent); }
.faq-sign {
  position: relative;
  flex-shrink: 0;
  width: 13px;
  height: 13px;
}
.faq-sign::before, .faq-sign::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform var(--t);
}
.faq-sign::before { inset: 6px 0 6px 0; height: 1px; }
.faq-sign::after { inset: 0 6px 0 6px; width: 1px; }
.faq-item[open] .faq-sign::after { transform: scaleY(0); }
.faq-body { overflow: hidden; }
.faq-body p {
  padding-bottom: 1.2rem;
  color: var(--dim);
  max-width: 58ch;
  font-size: 0.94rem;
}
.faq-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.faq-body code { color: var(--accent); }

/* ══ 8. 푸터 ═════════════════════════════════════════════ */
.footer { padding-top: clamp(3rem, 6vw, 4.5rem); overflow: clip; }

.footer-contact {
  display: grid;
  gap: 1.5rem;
  padding-bottom: clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 5.5rem;
}
@media (min-width: 56rem) {
  .footer-contact { grid-template-columns: 1fr auto; align-items: end; gap: 3rem; }
}
.fc-main { display: flex; flex-direction: column; gap: 0.5rem; }
.fc-key {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}
.fc-mail {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  align-self: start;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 0.85rem + 1.4vw, 1.85rem);
  letter-spacing: -0.03em;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 7px;
  text-decoration-color: var(--line2);
  transition: color var(--t), text-decoration-color var(--t), gap var(--t);
}
.fc-mail:hover { color: var(--accent); text-decoration-color: var(--accent); gap: 1.2rem; }
.fc-mail svg { width: 0.9em; height: 0.9em; }

.fc-meta { display: flex; flex-wrap: wrap; gap: 0.75rem 2rem; }
.fc-meta dt {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.15rem;
}
.fc-meta dd { font-size: 0.86rem; color: var(--dim); }
.fc-meta a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-top {
  display: grid;
  gap: 2rem;
  padding-block: clamp(2rem, 4vw, 3.5rem);
}
@media (min-width: 56rem) { .footer-top { grid-template-columns: 1fr 1fr; align-items: start; } }

/* 밑줄로 눌러 볼 수 있다는 걸 분명히 합니다 */
.footer-links { display: flex; flex-wrap: wrap; gap: 0.5rem 1.8rem; }
.footer-links a {
  display: inline-block;
  font-size: 1.02rem;
  border-bottom: 1px solid var(--line2);
  padding-bottom: 2px;
  transition: border-color var(--t-fast), color var(--t-fast);
}
.footer-links a:hover { border-color: var(--accent); }
.footer-links a .fl-clip {
  display: block;
  height: 1.35em;
  overflow: hidden;
}
.footer-links a .fl-in {
  display: block;
  transition: transform var(--t);
}
.footer-links a .fl-in span { display: block; line-height: 1.35; }
.footer-links a:hover .fl-in { transform: translateY(-50%); }
.footer-links a .fl-alt { color: var(--accent); }



.footer-wordmark {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: min(22vw, 20rem);
  line-height: 0.78;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1px var(--line2);
  user-select: none;
  white-space: nowrap;
  text-align: center;
}
.footer-wordmark span {
  display: block;
  will-change: transform, letter-spacing;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-block: 1.4rem;
  border-top: 1px solid var(--line);
  margin-top: clamp(1.5rem, 3vw, 2.5rem);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--faint);
}
.footer-bottom-mid { display: none; }
@media (min-width: 40rem) { .footer-bottom-mid { display: inline; } }
.footer-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--dim);
  transition: color var(--t-fast);
}
.footer-top-btn:hover { color: var(--accent); }
.footer-top-btn svg { width: 0.85rem; height: 0.85rem; transition: transform var(--t); }
.footer-top-btn:hover svg { transform: translateY(-3px); }

/* ══ 8b. 이스터에그 ─ mach 버스트 ════════════════════════
   터미널에 숨은 명령어를 입력하면 화면을 가로지르는 속도선이
   지나가고, 그동안 강조색이 뜨거운 색으로 바뀝니다. */
.warp {
  position: fixed;
  inset: 0;
  z-index: 265;
  pointer-events: none;
  overflow: hidden;
}
.warp::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--accent);
  opacity: 0;
  animation: warpFlash 620ms var(--ease) forwards;
}
@keyframes warpFlash {
  0% { opacity: 0.16; }
  100% { opacity: 0; }
}

.warp-line {
  position: absolute;
  left: 100%;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, currentColor 45%, #fff 92%, transparent);
  color: var(--accent);
  opacity: 0;
  animation: warpFly var(--dur, 900ms) cubic-bezier(0.3, 0, 0.2, 1) var(--delay, 0ms) forwards;
}
@keyframes warpFly {
  0% { transform: translateX(0); opacity: 0; }
  12% { opacity: 1; }
  88% { opacity: 1; }
  100% { transform: translateX(calc(-100vw - 100% - 4rem)); opacity: 0; }
}

/* 버스트가 도는 동안만 강조색을 바꿉니다. theme.css 뒤에 오므로 이깁니다. */
.is-warp {
  --accent: #ff6a3d;
  --accent-soft: rgba(255, 106, 61, 0.18);
}
.is-warp .hero-name,
.is-warp .brand-text { animation: warpJitter 90ms steps(2) infinite; }
@keyframes warpJitter {
  0% { transform: translate(0, 0); }
  50% { transform: translate(-1.5px, 1px); }
  100% { transform: translate(1.5px, -1px); }
}

/* ══ 9. 접근성 · 인쇄 ═══════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
  .wi { transform: none; }
  .cursor { display: none !important; }
  .loader { display: none; }
  .ticker-track { animation: none; }
}

@media print {
  .header, .loader, .cursor, .palette, .dotnav, .bg-field, .bg-grain,
  .ticker, .hero-term, .scroll-cue, .hero-wordmark, .footer-wordmark,
  .til-heat-wrap, .warp { display: none !important; }
  [data-surface] { background: #fff !important; color: #000 !important; }
  .section { min-height: 0; padding-block: 1.5rem; }
  .js [data-reveal] { opacity: 1 !important; transform: none !important; }
  .wi { transform: none !important; }
}