:root {
  /* Typography */
  --font-body: "Inter", "Pretendard", system-ui, -apple-system, sans-serif;
  --font-heading: "Helvetica Neue", "Arial Black", system-ui, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;
  --font-scale: 1.25;

  /* Colors (Pop & Neo-Brutalism Theme) */
  --color-bg: #f4f4f5;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #52525b;
  --color-border: #000000;
  --color-accent: #ffc800;
  --color-accent-hover: #ffe066;
  --color-accent-text: var(--color-text);
  --color-header-bg: var(--color-accent);
  --color-topbar-bg: var(--color-text);
  --color-topbar-fg: var(--color-surface);
  --color-topbar-chip-bg: var(--color-surface);
  --color-topbar-chip-border: var(--color-border);
  --color-code-bg: #1e1e1e;
  --code-border-color: var(--color-border);
  --code-shadow: var(--shadow-hard);
  --glow-strong: 0 0 0 rgba(0, 0, 0, 0);

  /* Spacing */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 3rem;

  /* Style Tokens */
  --border-width: 3px;
  --border-width-strong: 2px;
  --radius: 0px;
  --shadow-hard: 6px 6px 0px 0px var(--color-border);
}

:root[data-theme="gray"] {
  --color-bg: #f0f0f0;
  --color-surface: #f8f8f8;
  --color-text: #1f1f1f;
  --color-muted: #5a5a5a;
  --color-border: #1f1f1f;
  --color-accent: #cfcfcf;
  --color-accent-hover: #e1e1e1;
  --color-header-bg: #dedede;
  --color-topbar-bg: #2c2c2c;
  --color-topbar-fg: #f8f8f8;
  --color-topbar-chip-bg: #ffffff;
  --color-topbar-chip-border: #3d3d3d;
  --border-width: 3px;
  --border-width-strong: 2px;
}

:root[data-theme="dark"] {
  --color-bg: #050b1a;
  --color-surface: #0f172a;
  --color-text: #e2e8f0;
  --color-muted: #94a3b8;
  --color-border: #1f2a44;
  --color-accent: #22d3ee;
  --color-accent-hover: #67e8f9;
  --color-accent-text: #021019;
  --shadow-hard: 0 30px 60px -30px rgba(2, 6, 23, 0.9);
  --color-header-bg: #050b1a;
  --color-topbar-bg: #030816;
  --color-topbar-fg: #e2e8f0;
  --color-topbar-chip-bg: #0a1324;
  --color-topbar-chip-border: #18213a;
  --border-width: 1px;
  --border-width-strong: 1px;
  --radius: 12px;
  --color-code-bg: #020817;
  --code-border-color: transparent;
  --code-shadow: 0 30px 65px -35px rgba(4, 9, 20, 0.9);
  --glow-strong: 0 0 25px rgba(34, 211, 238, 0.6);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  background: var(--color-bg);
  color: var(--color-text);
  border-top: 10px solid var(--color-border);
  border-top: 10px solid var(--color-border);
}

.hidden {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

/* 링크 스타일 */
a {
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}
a:hover {
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  text-decoration: none;
}

h1,
h2,
h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0;
}

.shell {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: var(--space-4) var(--space-2);
}

/* =========================
   HEADER & NAV
   ========================= */

.site-header {
  border-bottom: var(--border-width) solid var(--color-border);
  background: var(--color-header-bg);
  box-shadow: var(--shadow-hard);
}

.site-header__main {
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
}

.site-header__main.is-featured-only {
  display: flex;
  justify-content: center;
}

.site-topbar {
  background: var(--color-topbar-bg);
  color: var(--color-topbar-fg);
  border-bottom: var(--border-width) solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 40;
}

.site-topbar .shell {
  padding-top: var(--space-1);
  padding-bottom: var(--space-1);
}

.site-topbar__inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.site-topbar__logo {
  font-family: var(--font-heading);
  letter-spacing: 0.12em;
  font-size: 1rem;
  text-transform: uppercase;
  color: var(--color-accent);
  text-decoration: none;
}

.site-topbar__nav {
  display: flex;
  gap: var(--space-1);
  flex: 1;
  flex-wrap: wrap;
}

.site-topbar__link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.35rem 0.8rem;
  border: var(--border-width-strong) solid var(--color-topbar-chip-border);
  border-radius: var(--radius);
  background: var(--color-topbar-chip-bg);
  color: var(--color-text);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  text-decoration: none;
  box-shadow: var(--shadow-hard);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.site-topbar__link:hover,
.site-topbar__link:focus-visible {
  transform: translate(2px, 2px);
  box-shadow: 4px 4px 0px 0px var(--color-border);
}

.site-topbar__link[aria-current="page"] {
  background: var(--color-accent);
  color: var(--color-accent-text);
}

.site-topbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-topbar__search-btn {
  border: var(--border-width-strong) solid var(--color-border);
  border-color: var(--color-topbar-chip-border);
  background: var(--color-topbar-chip-bg);
  color: var(--color-text);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  min-height: 42px;
  line-height: 1;
  box-shadow: var(--shadow-hard);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
}

.site-topbar__search-btn:hover,
.site-topbar__search-btn:focus-visible {
  background: var(--color-accent);
  color: var(--color-accent-text);
  transform: translate(2px, 2px);
  box-shadow: 4px 4px 0px 0px var(--color-border);
}

:root[data-theme="dark"] .site-topbar__search-btn {
  border-radius: 999px;
  color: var(--color-topbar-fg);
}
}

/* 사이트 타이틀 */
.site-title {
  font-size: 3rem;
  margin: var(--space-1) 0 var(--space-1);
  line-height: 1.1;
  text-transform: uppercase;
}

.lede {
  max-width: 60ch;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-text);
  margin-top: 0.25rem;
  margin-bottom: 0.25rem;
}

.site-title a:hover {
  background: var(--color-accent);
  color: var(--color-accent-text);
  box-shadow: var(--glow-strong);
}

/* 헤더 아래 서브 설명(lede)를 조금 더 차분하게 */
.lede {
  max-width: 60ch;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-text);
}

.color-palette {
  margin-top: var(--space-2);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.color-palette__label {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.color-palette__list {
  display: flex;
  gap: var(--space-1);
  list-style: none;
  padding: 0;
  margin: 0;
}

.color-palette--compact {
  gap: var(--space-1);
}

.color-palette--compact .color-palette__label {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
}

.color-palette__button {
  width: 42px;
  height: 42px;
  border-radius: 30%;
  border: var(--border-width-strong) solid var(--color-border);
  background: var(--swatch-base, var(--color-accent));
  box-shadow: var(--shadow-hard);
  cursor: pointer;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.color-palette__button:hover {
  transform: translateY(-2px);
}

.color-palette__button:focus-visible {
  outline: none;
  border-color: var(--color-text);
  box-shadow: var(--shadow-hard);
}

.color-palette__button::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: var(--swatch-contrast, var(--color-text));
  opacity: 0.7;
}

.color-palette__button.is-active {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-hard), var(--glow-strong);
  transform: translateY(-2px);
}

.color-palette__button.is-active::after {
  opacity: 1;
  border-width: 3px;
  border-color: var(--color-accent);
}

.color-palette--compact .color-palette__button {
  width: 28px;
  height: 28px;
  box-shadow: 4px 4px 0px 0px var(--color-border);
}

.color-palette--compact .color-palette__button::after {
  inset: 4px;
}

/* 헤더와 본문 사이에 명확한 공간 확보 */
main.shell {
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

/* =========================
   패널 / 카드
   ========================= */

.panel {
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  margin-bottom: var(--space-3);
  box-shadow: var(--shadow-hard);
  box-shadow: var(--shadow-hard);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.panel:hover {
  transform: translate(2px, 2px);
  box-shadow: 4px 4px 0px 0px var(--color-border);
}

.panel__header h2 {
  margin: var(--space-1) 0;
  font-size: 1.8rem;
}

.key-points {
  list-style: square;
  padding-left: var(--space-3);
  margin: 0;
  display: grid;
  gap: var(--space-1);
  font-weight: 600;
}

/* 배지 스타일 */
.eyebrow {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-accent-text);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
  padding: 4px 8px;
  border: var(--border-width-strong) solid var(--color-border);
  margin-bottom: var(--space-2);
  transform: rotate(-1deg);
}

.site-hero {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-width: 560px;
}

.hero-context {
  margin-top: var(--space-1);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-featured {
  display: flex;
  justify-content: flex-end;
  width: 100%;
}

.hero-featured--solo {
  justify-content: center;
}

.hero-featured--solo .featured-card {
  width: min(720px, 100%);
}

.featured-card {
  width: min(480px, 100%);
  background: var(--color-surface);
  border: 3px solid var(--color-border);
  box-shadow: var(--shadow-hard);
  padding: var(--space-3);
  display: grid;
  gap: 0.35rem;
}

.featured-card__eyebrow {
  display: inline-block;
  background: var(--color-accent);
  padding: 0.35rem 0.65rem;
  border: var(--border-width-strong) solid var(--color-border);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  width: fit-content;
  color: var(--color-accent-text);
}

.featured-card__title {
  margin: 0;
  font-size: 1.6rem;
  line-height: 1.2;
}

.featured-card__meta {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.featured-card__summary {
  margin: 0;
  color: var(--color-muted);
}

.featured-card__actions {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin-top: var(--space-1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1rem;
  border: var(--border-width-strong) solid var(--color-border);
  font-weight: 800;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
  background: var(--color-surface);
  color: var(--color-text);
}

.btn:hover,
.btn:focus-visible {
  transform: translate(2px, 2px);
  box-shadow: 4px 4px 0px 0px var(--color-border);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-accent-text);
  box-shadow: var(--shadow-hard), var(--glow-strong);
}

.btn--ghost {
  background: var(--color-surface);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--glow-strong);
}

.featured-card.is-loading {
  opacity: 0.8;
}

/* =========================
   FOOTER
   ========================= */

.site-footer {
  border-top: var(--border-width) solid var(--color-border);
  background: var(--color-text);
  color: var(--color-surface);
  padding: var(--space-1) 0;
}

.site-footer .muted {
  color: #cccccc;
}

/* =========================
   ARTICLE VIEW
   ========================= */

.article-layout {
  max-width: 860px;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.post--full {
  border: var(--border-width) solid var(--color-border);
  box-shadow: var(--shadow-hard);
  padding: var(--space-3);
  background: var(--color-surface);
}

.post-header--full {
  margin-bottom: var(--space-2);
}

.post-actions {
  display: flex;
  align-items: center;
  margin-top: var(--space-1);
}

.heart-button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border: var(--border-width-strong) solid var(--color-border);
  background: var(--color-surface);
  cursor: pointer;
  font-weight: 700;
  font-family: inherit;
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  transition: transform 0.15s ease, box-shadow 0.15s ease,
    background 0.15s ease;
}

.heart-button__icon {
  font-size: 1rem;
  line-height: 1;
}

.heart-button:hover,
.heart-button:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--glow-strong);
}

.heart-button.is-active {
  background: var(--color-accent);
  color: var(--color-accent-text);
}

.heart-button--small {
  padding: 0.3rem 0.75rem;
  font-size: 0.9rem;
}

.post-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-2);
}

.post-nav__link {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: var(--space-2);
  border: var(--border-width-strong) solid var(--color-border);
  background: var(--color-surface);
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-hard);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.post-nav__link:hover,
.post-nav__link:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--glow-strong);
  background: var(--color-accent);
  color: var(--color-accent-text);
}

.post-nav__link[aria-disabled="true"] {
  opacity: 0.5;
  pointer-events: none;
}

.post-nav__eyebrow {
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  font-weight: 800;
  opacity: 0.8;
  align-self: flex-start;
}

.post-nav__title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
}

/* =========================
   POSTS LIST PAGE
   ========================= */

.posts-page {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.posts-page__intro {
  max-width: 640px;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-3);
}

.post-card {
  border: var(--border-width) solid var(--color-border);
  padding: var(--space-3);
  background: var(--color-surface);
  box-shadow: var(--shadow-hard);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.post-card__date {
  font-size: 0.85rem;
  text-transform: uppercase;
  font-weight: 700;
  opacity: 0.8;
  margin: 0;
}

.post-card__title {
  margin: 0;
  font-size: 1.3rem;
}

.post-card__summary {
  margin: 0;
  color: var(--color-muted);
  flex: 1;
}

.post-card__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.post-card__link {
  align-self: flex-start;
  text-decoration: none;
  font-weight: 800;
  border: var(--border-width-strong) solid var(--color-border);
  padding: 0.4rem 0.8rem;
  box-shadow: var(--shadow-hard);
  background: var(--color-accent);
  color: var(--color-accent-text);
}

.post-card__link:hover,
.post-card__link:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--glow-strong);
}

/* 날짜별 요약 */
.summary-layout {
  max-width: 900px;
}

.summary-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
}

.pill-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  border: var(--border-width-strong) solid var(--color-border);
  background: var(--color-accent);
  text-decoration: none;
  color: var(--color-accent-text);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-hard), var(--glow-strong);
}

.pill-link:hover {
  background: var(--color-accent-hover);
  box-shadow: var(--glow-strong);
}

.digest-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.timeline-year-block {
  border-left: 6px solid var(--color-border);
  padding-left: var(--space-2);
}

.timeline-year {
  font-size: 2rem;
  margin: 0 0 var(--space-2);
  text-transform: uppercase;
}

.timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.timeline-entry {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--space-2);
  padding: var(--space-2);
  border: var(--border-width-strong) solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-hard);
}

.timeline-entry__date {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-transform: uppercase;
  font-weight: 700;
  border-right: var(--border-width-strong) solid var(--color-border);
  padding-right: var(--space-1);
}

.timeline-entry__month {
  font-size: 0.85rem;
}

.timeline-entry__day {
  font-size: 2rem;
  line-height: 1;
}

.timeline-entry__titles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.timeline-entry__titles li {
  font-weight: 700;
  border-left: 4px solid var(--color-accent);
  padding-left: var(--space-1);
}

/* =========================
   POST BODY
   ========================= */

.post-body {
  font-size: 1.125rem;
  background: var(--color-surface); /* NEW: post 영역을 카드처럼 */
  border: var(--border-width) solid var(--color-border); /* NEW */
  padding: var(--space-3); /* NEW */
  box-shadow: var(--shadow-hard); /* NEW */
}

/* 헤더와 본문(post-body)의 레벨을 명확히 갈라줌
   - 헤더: 노란 바 + 그림자
   - 본문: 흰 카드 + 검은 테두리 + 그림자
*/

.post-header h1,
.post-body h1 {
  font-size: 2.4rem;
  display: inline-block;
  background-size: 100% 100%;
  background-repeat: no-repeat;
  padding: 0;
  border: 0;
  box-shadow: none;
  box-decoration-break: clone;
}

.post-header {
  margin-bottom: var(--space-2);
  margin-top: var(--space-1);
}

.post-header--full {
  padding-top: var(--space-1);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.post-title-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-top: var(--space-1);
  align-items: flex-start;
}

.post-title {
  margin: 0;
}

.post-subtitle {
  margin: 0;
  font-size: 1rem;
  color: var(--color-muted);
  font-weight: 600;
}

.post-body blockquote {
  margin: var(--space-3) 0;
  padding: var(--space-2) var(--space-3);
  background: var(
    --color-bg
  ); /* 배경색을 컨텐츠 색보다 살짝 어둡게 (var(--color-bg)는 #f5f5f5) */

  /* 기존: border-left: 6px solid var(--color-accent); */
  /* 개선: 굵은 테두리 변수 적용 및 명확한 그림자 추가 */
  border: var(--border-width) solid var(--color-border); /* 사각형 테두리 추가 */
  border-left: 8px solid var(--color-accent); /* 좌측 라인을 더욱 굵게 강조 */

  font-style: italic;
  font-weight: 600;

  /* NEW: 콘텐츠 속의 패널처럼 보이도록 그림자 추가 */
  box-shadow: 3px 3px 0px 0px var(--color-border);
}

.post-body img {
  max-width: 100%;
  height: auto;
  border: var(--border-width) solid var(--color-border);
  box-shadow: var(--shadow-hard);
  margin: var(--space-2) 0;
  border-radius: var(--radius);
}

/* 코드 블록 */
pre code.hljs {
  border: 1px solid var(--code-border-color);
  border-radius: 8px;
  background: var(--color-code-bg);
  color: #fff;
  padding: var(--space-3);
  box-shadow: var(--code-shadow);
}

.placeholder-msg {
  text-align: center;
  padding: var(--space-4);
  background: var(--color-accent);
  background: var(--color-accent);
  border: var(--border-width) solid var(--color-border);
  box-shadow: var(--shadow-hard);
  font-weight: bold;
  color: var(--color-accent-text);
}

/* =========================
   SEARCH OVERLAY
   ========================= */

.search-overlay {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  justify-content: center;
  padding: 10vh var(--space-2) var(--space-2);
}

.search-container {
  width: min(720px, 100%);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  position: relative;
  color: var(--color-surface);
}

.search-overlay__close {
  position: absolute;
  top: 0;
  right: 0;
  border: none;
  background: none;
  color: var(--color-surface);
  font-weight: 800;
  font-size: 1rem;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.search-header {
  color: var(--color-surface);
  text-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
}

.search-hint {
  margin-top: 0.25rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

#search-input {
  width: 100%;
  font-size: 2rem;
  font-weight: 800;
  padding: 1.2rem;
  border: 3px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: 8px 8px 0 0 var(--color-accent);
  outline: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

#search-input:focus {
  transform: translate(-3px, -3px);
  box-shadow: 12px 12px 0 0 var(--color-accent);
}

.search-results {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  max-height: 45vh;
  overflow-y: auto;
  padding-right: 0.25rem;
}

.search-result-item {
  display: block;
  border: var(--border-width) solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  padding: var(--space-1);
  text-decoration: none;
  box-shadow: 4px 4px 0 0 var(--color-border);
  transition: transform 0.1s ease, background 0.1s ease, color 0.1s ease;
}

.search-result-item:hover,
.search-result-item:focus-visible {
  transform: translate(-2px, -2px);
  background: var(--color-accent);
  color: var(--color-accent-text);
}

.search-result-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 0 0.25rem;
}

.search-result-date {
  font-size: 0.9rem;
  margin: 0;
  color: var(--color-muted);
}

.search-result-summary {
  margin: 0.5rem 0 0;
  color: var(--color-text);
  font-size: 1rem;
}

.search-empty {
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
}

@media (max-width: 640px) {
  .search-overlay {
    padding-top: var(--space-2);
  }

  #search-input {
    font-size: 1.4rem;
    padding: 1rem;
  }

  .search-result-title {
    font-size: 1.1rem;
  }
}

/* =========================
   MOBILE TUNING
   ========================= */

/* 모바일(태블릿 이하)에서 타이포/여백/호버 효과 조정 */
@media (max-width: 767px) {
  body {
    font-size: 15px; /* 전체 타이포 약간 줄이기 */
    border-top-width: 6px; /* 상단 바 살짝 얇게 */
  }

  .shell {
    padding: var(--space-3) var(--space-2);
  }

  .site-header {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
    box-shadow: 4px 4px 0 0 var(--color-border);
  }

  .site-topbar__inner {
    flex-wrap: wrap;
    align-items: flex-start;
    gap: var(--space-1);
  }

  .site-topbar__logo {
    flex: 1;
  }

  .site-topbar__search-btn {
    margin-left: auto;
  }

  .site-topbar__actions {
    order: 3;
    width: 100%;
    justify-content: flex-start;
  }

  .site-topbar__nav {
    order: 2;
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: var(--space-1);
    padding-bottom: 0.35rem;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .site-topbar__nav::-webkit-scrollbar {
    display: none;
  }

  .site-topbar__link {
    flex: 0 0 auto;
    white-space: nowrap;
  }

  .site-title {
    font-size: 2.2rem; /* 헤더 타이틀 축소 */
    line-height: 1.1;
  }

  .lede {
    font-size: 0.95rem;
  }

  main.shell {
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
  }

  .post-body {
    font-size: 1rem;
    padding: var(--space-2);
    box-shadow: 4px 4px 0 0 var(--color-border); /* 그림자 조금 축소 */
  }

  .post-header h1,
  .post-body h1 {
    font-size: 2rem;
  }

  .post-meta {
    align-items: flex-start;
  }

  pre code.hljs {
    padding: var(--space-2);
    font-size: 0.9rem;
    overflow-x: auto; /* 모바일 코드블럭 가로 스크롤 */
  }

  .summary-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .pill-link {
    width: 100%;
    justify-content: center;
  }

  .timeline-entry {
    grid-template-columns: 70px 1fr;
  }

  .timeline-entry__date {
    border-right: none;
    border-bottom: 2px solid var(--color-border);
    flex-direction: row;
    gap: var(--space-1);
    justify-content: flex-start;
    align-items: center;
    padding-bottom: var(--space-1);
    margin-bottom: var(--space-1);
  }

  .timeline-entry__day {
    font-size: 1.4rem;
  }
}