@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.css');
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400&family=Space+Mono:wght@400;700&family=Noto+Serif+KR:wght@400;500;600&display=swap');

/* ── Editorial Serif / Gothic tokens ─────────────────────────────────
   Source: DESIGN.md — Cohere editorial system, adapted to a serif
   (Fraunces) display + gothic (Pretendard) body pairing.            */
:root {
  --font-serif: "Fraunces", "Noto Serif KR", Georgia, "Times New Roman", serif;
  --font-sans:  "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Apple SD Gothic Neo", "Noto Sans KR", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono:  "Space Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --fg-primary: #212121;
  --fg-secondary: #52525b;
  --fg-tertiary: #93939f;
  --fg-muted: #75758a;
  --fg-disabled: #b8b8bf;
  --fg-inverse: #ffffff;
  --ink: #17171c;

  --accent: #ff7759;
  --accent-soft: #ffad9b;
  --accent-wash: #fff1ec;
  --accent-ink: #c2452c;
  --link: #1863dc;
  --link-hover: #124fb0;

  --bg-primary: #ffffff;
  --bg-canvas: #f8f7f3;
  --bg-secondary: #f1efe9;
  --bg-stone: #eeece7;
  --bg-tertiary: #e6e3db;

  --line-default: #e3e0d8;
  --line-strong: #d4d1c9;

  --radius-s: 6px;
  --radius-m: 10px;
  --radius-l: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-pill: 32px;
  --radius-full: 9999px;

  --shadow-1: 0 1px 2px rgba(23, 23, 28, 0.05);
  --shadow-2: 0 10px 28px rgba(23, 23, 28, 0.08);

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur-base: 200ms;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg-canvas);
  color: var(--fg-primary);
  font-family: var(--font-sans);
  line-height: 1.5;
  letter-spacing: -0.003em;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button,
input,
select {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: flex-end;
  padding: 16px 24px;
  background: rgba(248, 247, 243, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-default);
}

.header-nav {
  display: flex;
  gap: 8px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: var(--bg-primary);
  color: var(--fg-secondary);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: border-color var(--dur-base) var(--ease), color var(--dur-base) var(--ease);
}

.back-link:hover {
  color: var(--fg-primary);
  border-color: var(--ink);
}

.page-shell {
  width: min(1040px, calc(100% - 48px));
  margin: 0 auto;
  padding: 56px 0 72px;
}

.detail-shell {
  width: min(900px, calc(100% - 48px));
}

.intro {
  margin-bottom: 36px;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: auto;
  margin: 0 0 18px;
  padding: 0;
  background: none;
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.intro-grid {
  max-width: 760px;
}

h1 {
  margin: 0;
  color: var(--fg-primary);
  font-family: var(--font-serif);
  font-size: clamp(3rem, 7vw, 4.5rem);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.022em;
}

.intro-copy {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--fg-secondary);
  font-size: 18px;
  line-height: 1.55;
}

.controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 180px;
  gap: 12px;
  margin-bottom: 28px;
}

.search-field,
.sort-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.search-field input,
.sort-field select {
  width: 100%;
  height: 48px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-m);
  background: var(--bg-primary);
  color: var(--fg-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  letter-spacing: normal;
  text-transform: none;
  padding: 0 16px;
  outline: none;
  transition: border-color var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}

.search-field input:focus,
.sort-field select:focus {
  border-color: var(--link);
  box-shadow: 0 0 0 3px rgba(24, 99, 220, 0.14);
}

.section-bar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: baseline;
  margin-bottom: 14px;
}

.section-bar h2 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.section-bar p {
  margin: 0;
  color: var(--fg-tertiary);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 34px;
  margin-bottom: 32px;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  min-width: 0;
  min-height: 34px;
  padding: 7px 15px;
  border: 1px solid var(--accent-soft);
  border-radius: var(--radius-pill);
  background: var(--accent-wash);
  color: var(--accent-ink);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.35;
  overflow-wrap: anywhere;
  text-align: center;
  white-space: normal;
  transition: background var(--dur-base) var(--ease), border-color var(--dur-base) var(--ease), color var(--dur-base) var(--ease);
}

.tag-chip:hover,
.tag-chip.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.load-error {
  margin: 0 0 24px;
  padding: 14px 16px;
  border: 1px solid rgba(179, 0, 0, 0.22);
  border-radius: var(--radius-m);
  background: rgba(179, 0, 0, 0.06);
  color: #b30000;
  font-size: 14px;
  font-weight: 600;
}

.review-list {
  display: grid;
  gap: 14px;
}

.review-card,
.empty-state {
  border: 1px solid var(--line-default);
  border-radius: var(--radius-xl);
  background: var(--bg-primary);
}

.review-card {
  display: grid;
  gap: 18px;
  padding: 24px;
  transition: border-color var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}

.review-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}

.review-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 10px;
  color: var(--fg-tertiary);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.review-meta span + span::before {
  content: "";
  display: inline-block;
  width: 3px;
  height: 3px;
  margin: 0 8px 3px 0;
  border-radius: 50%;
  background: var(--fg-disabled);
}

.review-card h2 {
  margin: 0;
  color: var(--fg-primary);
  font-family: var(--font-serif);
  font-size: 25px;
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.015em;
}

.review-authors {
  margin: 10px 0 0;
  color: var(--fg-tertiary);
  font-size: 14px;
}

.review-summary {
  max-width: 760px;
  margin: 12px 0 0;
  color: var(--fg-secondary);
  font-size: 15px;
  line-height: 1.62;
}

.review-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

.review-tags span {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  min-width: 0;
  min-height: 28px;
  padding: 5px 11px;
  border: 1px solid var(--line-default);
  border-radius: var(--radius-pill);
  background: var(--bg-secondary);
  color: var(--fg-secondary);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.35;
  overflow-wrap: anywhere;
  white-space: normal;
}

.media-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.media-thumb {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-default);
  border-radius: var(--radius-m);
  background: var(--bg-secondary);
}

.media-thumb img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--bg-stone);
}

.media-thumb figcaption {
  display: -webkit-box;
  margin: 0;
  padding: 9px 10px 10px;
  overflow: hidden;
  color: var(--fg-tertiary);
  font-size: 12px;
  line-height: 1.4;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.review-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.review-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 18px;
  border-radius: var(--radius-pill);
  background: var(--ink);
  color: var(--fg-inverse);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0;
  transition: background var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}

.review-actions a:hover {
  background: #000000;
  transform: translateY(-1px);
}

.review-detail {
  padding-bottom: 24px;
}

.review-detail h1 {
  max-width: 860px;
  font-size: clamp(2.2rem, 4.6vw, 3rem);
  font-weight: 400;
  line-height: 1.1;
}

.detail-tags {
  margin-top: 20px;
}

.detail-actions {
  margin-top: 22px;
}

.markdown-body {
  margin-top: 44px;
  color: var(--fg-secondary);
  font-size: 16px;
  line-height: 1.78;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  color: var(--fg-primary);
  font-family: var(--font-serif);
  font-weight: 500;
  letter-spacing: -0.015em;
}

.markdown-body h1 {
  margin: 52px 0 18px;
  font-size: 32px;
  line-height: 1.2;
}

.markdown-body h2 {
  margin: 44px 0 14px;
  font-size: 26px;
  line-height: 1.26;
}

.markdown-body h3 {
  margin: 34px 0 12px;
  font-size: 21px;
  line-height: 1.32;
}

.markdown-body p {
  margin: 0 0 18px;
}

.markdown-body a {
  color: var(--link);
  font-weight: 600;
  text-underline-offset: 3px;
}

.markdown-body a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}

.markdown-body strong {
  color: var(--fg-primary);
  font-weight: 700;
}

.markdown-body ul,
.markdown-body ol {
  margin: 0 0 20px;
  padding-left: 24px;
}

.markdown-body li + li {
  margin-top: 8px;
}

.math-block {
  overflow-x: auto;
  margin: 24px 0;
  padding: 16px;
  border: 1px solid var(--line-default);
  border-radius: var(--radius-m);
  background: var(--bg-secondary);
  color: var(--fg-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  white-space: pre;
}

.markdown-body code {
  padding: 2px 6px;
  border: 1px solid var(--line-default);
  border-radius: var(--radius-s);
  background: var(--bg-secondary);
  font-family: var(--font-mono);
  font-size: 0.85em;
}

.markdown-body pre code {
  display: block;
  padding: 12px 16px;
  overflow-x: auto;
  line-height: 1.5;
}

.math-inline {
  padding: 1px 4px;
  border-radius: var(--radius-s);
  background: var(--bg-secondary);
  font-family: var(--font-mono);
  font-size: 0.85em;
}

.review-figure {
  margin: 32px 0;
  overflow: hidden;
  border: 1px solid var(--line-default);
  border-radius: var(--radius-2xl);
  background: var(--bg-primary);
}

.review-figure img {
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
  background: var(--bg-stone);
}

.review-figure figcaption {
  margin: 0;
  padding: 12px 16px 14px;
  color: var(--fg-tertiary);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.45;
}

.empty-state {
  padding: 40px 24px;
  text-align: center;
}

.empty-state h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.3;
}

.empty-state p {
  margin: 10px 0 0;
  color: var(--fg-secondary);
  font-size: 14px;
}

.footer {
  width: min(1040px, calc(100% - 48px));
  margin: 0 auto;
  padding: 24px 0 48px;
  border-top: 1px solid var(--line-default);
  color: var(--fg-tertiary);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.footer p {
  margin: 0;
}

@media (max-width: 760px) {
  .site-header {
    padding: 12px 16px;
  }

  .page-shell,
  .footer {
    width: min(100% - 32px, 1040px);
  }

  .detail-shell {
    width: min(100% - 32px, 900px);
  }

  .page-shell {
    padding-top: 40px;
  }

  .controls {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.6rem;
  }

  .review-detail h1 {
    font-size: 2rem;
  }

  .markdown-body {
    font-size: 15px;
  }

  .media-strip {
    grid-template-columns: 1fr;
  }
}