/* ==========================================================================
   CaseSociety — Blog styles
   Наследует дизайн-систему сайта: те же токены, шрифт Inter, крупная
   типографика с отрицательным трекингом, монохромная палитра, крупные радиусы.
   ========================================================================== */

:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #666666;
  --line: #e7e7e7;
  --soft: #f7f7f7;
  --dark: #111111;
  --radius: 24px;
  --ok: #21BA45;
  --content: 720px; /* комфортная ширина колонки чтения */
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.page { max-width: 980px; margin: 0 auto; padding: 28px 24px 96px; }

/* ---------- Header / Footer (как на сайте) ---------- */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0 40px;
  border-bottom: 1px solid var(--line);
}
.logo { font-weight: 700; letter-spacing: -0.03em; font-size: 22px; }
.nav { display: flex; gap: 22px; font-size: 15px; color: var(--muted); }
.nav a { transition: color 150ms ease; }
.nav a:hover { color: var(--text); }
.nav a.active { color: var(--text); }

footer {
  padding-top: 72px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--line);
  margin-top: 96px;
}
footer a:hover { color: var(--text); }

/* ---------- Общие типографические элементы ---------- */
.tag {
  font-size: 13px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 12px;
  width: fit-content;
  display: inline-block;
  background: var(--bg);
  transition: border-color 150ms ease, color 150ms ease;
}

/* ==========================================================================
   BLOG INDEX (/blog)
   ========================================================================== */
.blog-head { margin: 48px 0 8px; }
.blog-head h1 {
  margin: 0;
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1;
  letter-spacing: -0.05em;
}
.blog-head .lead {
  margin-top: 20px;
  max-width: 560px;
  font-size: 18px;
  color: var(--muted);
}

/* Фильтр категорий */
.cats {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 40px 0 8px;
}
.cat {
  font-size: 14px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  background: var(--bg);
  font-family: inherit;
  transition: all 150ms ease;
}
.cat:hover { border-color: var(--dark); color: var(--text); }
.cat.active { background: var(--dark); color: #fff; border-color: var(--dark); }

/* Featured статья */
.featured {
  display: block;
  margin: 48px 0 0;
  padding: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
  transition: border-color 150ms ease;
}
.featured:hover { border-color: var(--dark); }
.featured .flabel { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.featured h2 {
  margin: 14px 0 0;
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  max-width: 780px;
}
.featured .fexcerpt { margin: 18px 0 0; max-width: 620px; font-size: 18px; color: #444; }
.featured .fmeta { margin: 24px 0 0; display: flex; gap: 12px; flex-wrap: wrap; align-items: center; font-size: 14px; color: var(--muted); }
.featured .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); display: inline-block; }

/* Сетка карточек */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 16px;
}
.card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 28px 24px;
  background: var(--bg);
  cursor: pointer;
  transition: border-color 150ms ease, background 150ms ease;
  min-height: 220px;
}
.card:hover { border-color: var(--dark); background: var(--soft); }
.card .ccat { font-size: 13px; color: var(--muted); }
.card h3 {
  margin: 12px 0 0;
  font-size: 23px;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.card .cexcerpt { margin: 12px 0 0; color: var(--muted); font-size: 15px; }
.card .cmeta {
  margin-top: auto;
  padding-top: 20px;
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
}
.card .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); display: inline-block; }

.empty { padding: 60px 0; color: var(--muted); font-size: 16px; text-align: center; }

/* ==========================================================================
   ARTICLE (/blog/[slug])
   ========================================================================== */
.crumbs { margin: 40px 0 0; font-size: 14px; color: var(--muted); }
.crumbs a:hover { color: var(--text); }
.crumbs .sep { margin: 0 8px; }

.article-head { margin: 28px 0 0; }
.article-head h1 {
  margin: 0;
  font-size: clamp(34px, 5.4vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.045em;
  max-width: 860px;
}
.article-head .subtitle {
  margin: 24px 0 0;
  max-width: var(--content);
  font-size: 21px;
  line-height: 1.4;
  color: var(--muted);
}
.article-meta {
  margin: 32px 0 0;
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--muted);
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line);
}
.article-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); display: inline-block; }
.article-meta .author-name { color: var(--text); }

/* Тело статьи — читаемая колонка */
.article-body {
  max-width: var(--content);
  margin: 48px 0 0;
  font-size: 19px;
  line-height: 1.7;
  color: #1a1a1a;
}
.article-body > *:first-child { margin-top: 0; }
.article-body h2 {
  margin: 52px 0 16px;
  font-size: clamp(26px, 3.6vw, 34px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text);
}
.article-body h3 {
  margin: 40px 0 12px;
  font-size: 23px;
  letter-spacing: -0.02em;
  color: var(--text);
}
.article-body p { margin: 0 0 22px; }
.article-body ul, .article-body ol { margin: 0 0 22px; padding-left: 26px; }
.article-body li { margin: 8px 0; }
.article-body a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--line); transition: text-decoration-color 150ms ease; }
.article-body a:hover { text-decoration-color: var(--dark); }
.article-body blockquote {
  margin: 32px 0;
  padding: 4px 0 4px 24px;
  border-left: 3px solid var(--dark);
  font-size: 22px;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--text);
}
.article-body img { max-width: 100%; height: auto; border-radius: 18px; border: 1px solid var(--line); margin: 24px 0; }
.article-body figure { margin: 32px 0; }
.article-body figcaption { margin-top: 10px; font-size: 14px; color: var(--muted); text-align: center; }
.article-body code {
  font-family: 'Roboto Mono', ui-monospace, monospace;
  font-size: 0.88em;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 6px;
}
.article-body hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }

.placeholder-note {
  max-width: var(--content);
  margin: 32px 0 0;
  background: var(--soft);
  border: 1px dashed var(--line);
  border-radius: 18px;
  padding: 22px 24px;
  color: var(--muted);
  font-size: 15px;
}
.placeholder-note b { color: var(--text); }

/* Share */
.share {
  max-width: var(--content);
  margin: 56px 0 0;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.share .slabel { font-size: 15px; color: var(--muted); margin-right: 4px; }
.sbtn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--line);
  transition: all 150ms ease;
}
.sbtn:hover { border-color: var(--dark); background: var(--soft); }
.sbtn.done { background: var(--dark); color: #fff; border-color: var(--dark); }

/* Author block */
.author {
  max-width: var(--content);
  margin: 56px 0 0;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}
.author .avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--dark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
  overflow: hidden;
}
.author .avatar img { width: 100%; height: 100%; object-fit: cover; }
.author .a-name { font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }
.author .a-role { color: var(--muted); font-size: 14px; margin-top: 2px; }
.author .a-bio { margin-top: 12px; font-size: 15px; color: #333; line-height: 1.55; }
.author .a-links { margin-top: 14px; display: flex; gap: 16px; font-size: 14px; }
.author .a-links a { color: var(--muted); }
.author .a-links a:hover { color: var(--text); }

/* Related */
.related { margin: 72px 0 0; }
.related h2 { font-size: clamp(24px, 3.4vw, 32px); letter-spacing: -0.03em; margin: 0 0 24px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.rcard {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  background: var(--bg);
  cursor: pointer;
  min-height: 150px;
  transition: border-color 150ms ease, background 150ms ease;
}
.rcard:hover { border-color: var(--dark); background: var(--soft); }
.rcard .rcat { font-size: 12px; color: var(--muted); }
.rcard h3 { margin: 10px 0 0; font-size: 17px; line-height: 1.2; letter-spacing: -0.01em; }
.rcard .rmeta { margin-top: auto; padding-top: 16px; font-size: 12px; color: var(--muted); }

/* Прогресс-индикатор чтения */
.progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: var(--dark);
  z-index: 100;
  transition: width 80ms linear;
}

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .page { padding: 20px 20px 72px; }
  header { padding: 16px 0 28px; flex-wrap: wrap; gap: 12px; }
  .nav { gap: 16px; font-size: 14px; }
  .grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .featured { padding: 28px 24px; }
  .author { flex-direction: column; padding: 24px; }
  .article-body { font-size: 18px; }
  footer { flex-direction: column; gap: 8px; margin-top: 64px; }
}

/* ---------- Состояния загрузки / ошибки (Supabase) ---------- */
.state { max-width: var(--content); margin: 48px 0; color: var(--muted); font-size: 16px; }
.state.err { color: #b00; }
.skeleton { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 16px; }
.sk-card { height: 220px; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(90deg, var(--soft) 25%, #efefef 37%, var(--soft) 63%); background-size: 400% 100%; animation: sk 1.4s ease infinite; }
@keyframes sk { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }
@media (prefers-reduced-motion: reduce) { .sk-card { animation: none; } }
@media (max-width: 760px) { .skeleton { grid-template-columns: 1fr; } }