:root {
  --bg: #f6f7f4;
  --paper: #ffffff;
  --ink: #172124;
  --muted: #667176;
  --line: #dfe5df;
  --teal: #0f766e;
  --teal-dark: #0c4f4b;
  --coral: #c65c45;
  --gold: #b38728;
  --soft: #edf4f1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 64px;
  padding: 12px clamp(18px, 4vw, 48px);
  background: rgba(246, 247, 244, .92);
  border-bottom: 1px solid rgba(23, 33, 36, .08);
  backdrop-filter: blur(16px);
}

.brand {
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.site-nav a {
  min-height: 36px;
  padding: 7px 11px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a.active,
.site-nav a:hover {
  background: var(--soft);
  color: var(--teal-dark);
}

.hero {
  min-height: min(58vh, 540px);
  display: flex;
  align-items: center;
  background-position: center;
  background-size: cover;
  color: #fff;
}

.hero-copy {
  width: min(680px, calc(100% - 36px));
  margin-left: clamp(18px, 7vw, 86px);
  padding: 52px 0;
}

.eyebrow,
.meta {
  margin: 0 0 8px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #9de0d8;
}

.hero h1 {
  margin: 0;
  font-size: clamp(46px, 8vw, 92px);
  line-height: .95;
  letter-spacing: 0;
}

.hero p:not(.eyebrow) {
  max-width: 560px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, .88);
  font-size: clamp(18px, 2.2vw, 22px);
}

.hero-action,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  margin-top: 24px;
  padding: 10px 16px;
  border: 1px solid var(--teal);
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}

.button.secondary,
.hero-action:hover {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

.posts-section,
.article,
.writer,
.catalog-hero,
.catalog-panel,
.ad-slot {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.posts-section {
  padding: 34px 0 64px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.section-head.compact {
  align-items: center;
  margin-bottom: 16px;
}

.section-head h1,
.section-head h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.05;
}

.text-link,
.back-link {
  color: var(--teal-dark);
  font-weight: 750;
  text-decoration: none;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.ad-slot {
  display: grid;
  gap: 5px;
  margin-top: 22px;
  margin-bottom: 22px;
  border: 1px dashed #cfd8cf;
  border-radius: 8px;
  background: #fbfcf9;
  padding: 16px;
  color: var(--muted);
}

.ad-slot span {
  color: var(--coral);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.ad-slot strong {
  color: var(--ink);
  font-size: 18px;
}

.ad-slot p {
  margin: 0;
  font-size: 14px;
}

.catalog-hero {
  padding: 44px 0 18px;
}

.catalog-hero h1 {
  margin: 0;
  font-size: clamp(38px, 6vw, 72px);
  line-height: .98;
}

.catalog-hero p:not(.eyebrow) {
  max-width: 620px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 19px;
}

.catalog-panel {
  padding: 10px 0 72px;
}

.catalog-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, .34fr);
  gap: 12px;
  margin-bottom: 12px;
}

.catalog-controls label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.catalog-controls input,
.catalog-controls select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
}

.topic-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 8px 0 14px;
}

.topic-chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 10px;
  background: var(--paper);
  color: var(--muted);
  font: inherit;
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
}

.topic-chip.active {
  border-color: var(--teal);
  background: var(--teal);
  color: #fff;
}

.result-count {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.catalog-card {
  min-height: 250px;
}

.empty-state {
  grid-column: 1 / -1;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  padding: 22px;
  color: var(--muted);
  font-weight: 700;
}

.post-card {
  min-height: 230px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.post-card.featured {
  grid-column: span 2;
}

.post-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 18px;
  text-decoration: none;
}

.post-card h2 {
  margin: 0;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.08;
}

.post-card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 18px;
}

.tags span {
  padding: 3px 8px;
  border-radius: 999px;
  background: #f1eee5;
  color: #6d5521;
  font-size: 12px;
  font-weight: 700;
}

.article {
  padding: 42px 0 72px;
}

.article-header {
  width: min(760px, 100%);
}

.article-header h1 {
  margin: 12px 0;
  font-size: clamp(38px, 6vw, 76px);
  line-height: .98;
}

.article-header p:not(.meta) {
  color: var(--muted);
  font-size: 20px;
}

.article-cover {
  margin: 28px 0;
  overflow: hidden;
  border-radius: 8px;
  background: var(--soft);
}

.article-cover img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.article-body {
  width: min(760px, 100%);
  font-size: 18px;
}

.article-body h2,
.article-body h3 {
  margin: 34px 0 10px;
  line-height: 1.1;
}

.article-body p,
.article-body li {
  color: #263236;
}

.article-body code,
.preview code {
  padding: 2px 5px;
  border-radius: 5px;
  background: #eef0ec;
}

.article-body pre {
  overflow-x: auto;
  padding: 14px;
  border-radius: 8px;
  background: #11191b;
  color: #e9f2ef;
}

.writer {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr);
  gap: 18px;
  padding: 28px 0 64px;
}

.writer-panel,
.preview-panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.post-form {
  display: grid;
  gap: 12px;
}

.post-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}

.post-form input,
.post-form select,
.post-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 11px;
  color: var(--ink);
  font: inherit;
  resize: vertical;
}

.clinical-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.clinical-meta span,
.clinical-note {
  padding: 7px 10px;
  border-radius: 8px;
  background: var(--soft);
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 750;
}

.notice-box,
.source-box {
  width: min(760px, 100%);
  margin: 22px 0;
  border: 1px solid var(--line);
  border-left: 4px solid var(--coral);
  border-radius: 8px;
  background: #fffaf7;
  padding: 14px 16px;
  color: #5f3a2f;
  font-size: 15px;
  font-weight: 650;
}

.source-box {
  border-left-color: var(--teal);
  background: var(--paper);
  color: var(--ink);
  font-weight: 400;
}

.source-box h2 {
  margin: 0 0 10px;
  font-size: 20px;
}

.source-box ul {
  margin: 0;
  padding-left: 18px;
}

.source-box a {
  color: var(--teal-dark);
  overflow-wrap: anywhere;
}

.focus-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(1120px, calc(100% - 32px));
  margin: -28px auto 0;
  position: relative;
  z-index: 2;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
}

.focus-strip div {
  background: var(--paper);
  min-width: 0;
  padding: 16px;
}

.focus-strip span {
  color: var(--coral);
  font-size: 12px;
  font-weight: 850;
}

.focus-strip strong {
  display: block;
  margin-top: 4px;
  font-size: 18px;
}

.focus-strip p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
  overflow-wrap: anywhere;
}

.form-grid,
.writer-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.writer-actions .button {
  margin-top: 0;
}

.preview {
  color: var(--ink);
}

.preview h2 {
  margin: 0 0 8px;
  font-size: 28px;
  line-height: 1.1;
}

.preview-body {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.preview-list {
  margin-left: 12px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 22px clamp(18px, 4vw, 48px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 860px) {
  .site-header,
  .section-head,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .post-grid,
  .catalog-grid,
  .catalog-controls,
  .focus-strip,
  .writer,
  .form-grid,
  .writer-actions {
    grid-template-columns: 1fr;
  }

  .post-card.featured {
    grid-column: span 1;
  }

  .focus-strip {
    display: block;
  }

  .focus-strip div {
    width: 100%;
    padding: 16px 20px;
  }

  .hero {
    min-height: 520px;
    background-position: 62% center;
  }

  .hero-copy {
    width: min(340px, calc(100% - 32px));
    margin-left: 20px;
  }

  .hero h1 {
    max-width: 330px;
    font-size: 40px;
    overflow-wrap: anywhere;
  }

  .hero p:not(.eyebrow) {
    max-width: 320px;
    font-size: 17px;
  }

  .article-cover img {
    aspect-ratio: 4 / 3;
  }
}