/* Hemograma — hemato.digital
   Design: monochrome-light | centered masthead | 12-col grid */

:root {
  --bg: #fafafa;
  --bg-subtle: #f4f4f4;
  --text: #111111;
  --text-muted: #666666;
  --text-light: #999999;
  --accent: #333333;
  --accent-hover: #000000;
  --border: #e0e0e0;
  --border-strong: #cccccc;
  --surface: #ffffff;
  --shadow: 0 2px 16px rgba(0, 0, 0, 0.06);

  --font-serif: Georgia, "Times New Roman", Times, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --container: 1140px;
  --header-height: 120px;
  --grid-gap: 2rem;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;

  --transition: 0.2s ease;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 var(--space-sm);
  color: var(--text);
}

h1 { font-size: clamp(1.875rem, 4.5vw, 2.5rem); }
h2 { font-size: clamp(1.375rem, 3vw, 1.75rem); }
h3 { font-size: 1.1875rem; }
h4 { font-size: 0.875rem; font-family: var(--font-sans); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }

p {
  margin: 0 0 var(--space-sm);
}

ul, ol {
  margin: 0 0 var(--space-sm);
  padding-left: 1.25rem;
}

main {
  flex: 1 0 auto;
  padding-bottom: var(--space-xl);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

/* ── Header ─────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.header-centered {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-block: var(--space-md) var(--space-sm);
  position: relative;
}

.logo-center {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.logo-center img {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.logo-tagline {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.nav-toggle {
  display: none;
  position: absolute;
  top: var(--space-md);
  right: 0;
  padding: 0.5rem 0.875rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.nav-toggle:hover {
  background: var(--bg-subtle);
  border-color: var(--border-strong);
}

.main-nav {
  width: 100%;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border);
}

.main-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.25rem 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  display: inline-block;
  padding: 0.375rem 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.main-nav a:hover {
  color: var(--text);
  border-bottom-color: var(--border-strong);
}

.main-nav a.is-active {
  color: var(--text);
  border-bottom-color: var(--text);
}

/* ── Hero lead (text-only) ──────────────────────────────────── */

.hero-lead {
  padding-block: var(--space-xl) var(--space-lg);
  max-width: 680px;
  margin-inline: auto;
  text-align: center;
}

.hero-lead h1 {
  margin-bottom: var(--space-md);
}

.hero-lead .lead {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.bracket-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  margin-bottom: var(--space-sm);
}

.bracket-label::before {
  content: "[ ";
}

.bracket-label::after {
  content: " ]";
}

.text-link {
  display: inline-block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--text);
  padding-bottom: 0.125rem;
  transition: color var(--transition), border-color var(--transition);
}

.text-link:hover {
  color: var(--text-muted);
  border-bottom-color: var(--text-muted);
}

.editorial-accent {
  margin-block: var(--space-lg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-subtle);
  overflow: hidden;
}

.editorial-accent img {
  width: 100%;
  height: auto;
  opacity: 0.85;
}

.analytical-note {
  margin-bottom: var(--space-xl);
  padding: var(--space-md);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-muted);
  background: var(--surface);
  border-left: 3px solid var(--text);
  box-shadow: var(--shadow);
}

.analytical-note strong {
  color: var(--text);
  font-weight: 600;
}

/* ── 12-column grid ─────────────────────────────────────────── */

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--grid-gap);
  align-items: start;
}

.col-8 {
  grid-column: span 8;
}

.col-4 {
  grid-column: span 4;
}

/* ── Featured story & vertical feed ─────────────────────────── */

.featured-story {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.featured-story h2 {
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  margin-top: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.featured-story h2 a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

.featured-story h2 a:hover {
  color: var(--text-muted);
}

.meta,
.excerpt {
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.meta {
  margin-bottom: var(--space-sm);
  font-variant-numeric: tabular-nums;
}

.excerpt {
  line-height: 1.65;
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: 0.75rem;
  font-family: var(--font-sans);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border);
}

.vertical-feed {
  display: flex;
  flex-direction: column;
}

.vcard {
  padding-block: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.vcard:first-child {
  padding-top: 0;
}

.vcard:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.vcard__meta {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-bottom: 0.375rem;
  font-variant-numeric: tabular-nums;
}

.vcard__meta .bracket-label {
  margin-bottom: 0;
  font-size: inherit;
}

.vcard__title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.5rem;
}

.vcard__title a {
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition);
}

.vcard__title a:hover {
  color: var(--text-muted);
}

.vcard__excerpt {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin: 0;
}

/* ── Sidebar widget ─────────────────────────────────────────── */

.sidebar-widget {
  position: sticky;
  top: calc(var(--header-height) + var(--space-md));
  padding: var(--space-md);
  background: var(--surface);
  border: 1px solid var(--border);
}

.sidebar-widget h4 {
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border);
}

.sidebar-widget .vcard {
  padding-block: var(--space-sm);
}

.sidebar-widget .vcard__title {
  font-size: 0.9375rem;
}

/* ── Page & article content ─────────────────────────────────── */

.page-content {
  padding-block: var(--space-lg);
}

.page-content h2 {
  margin-top: var(--space-lg);
}

.page-content h2:first-of-type {
  margin-top: var(--space-md);
}

.page-header {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  margin-top: var(--space-xs);
}

.article-header {
  padding-block: var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-lg);
}

.article-meta {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: var(--space-sm) 0 0;
  font-variant-numeric: tabular-nums;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: var(--grid-gap);
  align-items: start;
}

.article-body {
  font-size: 1.0625rem;
  line-height: 1.75;
  max-width: 42rem;
}

.article-body h2 {
  margin-top: var(--space-xl);
  scroll-margin-top: calc(var(--header-height) + var(--space-md));
}

.article-body h2:first-of-type {
  margin-top: var(--space-md);
}

.article-body ul,
.article-body ol {
  margin-bottom: var(--space-md);
}

.author-name {
  margin-top: var(--space-xl);
  font-weight: 700;
  font-size: 0.9375rem;
}

.article-updated {
  font-size: 0.8125rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

.related-block {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.related-block h3 {
  font-size: 0.875rem;
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.related-block ul {
  list-style: none;
  padding: 0;
}

.related-block li {
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
}

.sticky-toc {
  position: sticky;
  top: calc(var(--header-height) + var(--space-md));
  font-size: 0.8125rem;
  padding: var(--space-md);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
}

.sticky-toc h4 {
  font-size: 0.6875rem;
  margin-bottom: 0.75rem;
}

.sticky-toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sticky-toc li {
  margin-bottom: 0.375rem;
}

.sticky-toc a {
  color: var(--text-muted);
  text-decoration: none;
}

.sticky-toc a:hover {
  color: var(--text);
  text-decoration: underline;
}

/* ── Contact form ───────────────────────────────────────────── */

.contact-form {
  max-width: 32rem;
  margin-top: var(--space-md);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--text);
  box-shadow: 0 0 0 3px rgba(17, 17, 17, 0.08);
}

.form-group textarea {
  min-height: 8rem;
  resize: vertical;
}

.form-notice {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: var(--space-sm);
}

.form-notice[hidden] {
  display: none;
}

/* ── Footer ─────────────────────────────────────────────────── */

.site-footer {
  flex-shrink: 0;
  margin-top: auto;
  padding-block: var(--space-xl) var(--space-lg);
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.footer-three-col {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--grid-gap);
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.footer-brand .logo-text {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 28rem;
}

.footer-brand a {
  color: var(--text);
}

.footer-col h4 {
  margin-bottom: var(--space-sm);
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--text);
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  font-size: 0.8125rem;
  color: var(--text-light);
}

/* ── Inline cookie note ─────────────────────────────────────── */

.cookie-inline {
  display: none;
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-align: right;
}

.cookie-inline.is-visible {
  display: inline;
}

.cookie-inline a {
  color: var(--text);
}

.cookie-dismiss {
  margin-left: 0.375rem;
  padding: 0;
  font-family: inherit;
  font-size: inherit;
  font-weight: 600;
  color: var(--text);
  background: none;
  border: none;
  text-decoration: underline;
  cursor: pointer;
  transition: color var(--transition);
}

.cookie-dismiss:hover {
  color: var(--text-muted);
}

/* ── Responsive ─────────────────────────────────────────────── */

@media (max-width: 1024px) {
  .grid-12 {
    grid-template-columns: 1fr;
  }

  .col-8,
  .col-4 {
    grid-column: 1 / -1;
  }

  .sidebar-widget {
    position: static;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .sticky-toc {
    position: static;
    order: -1;
    margin-bottom: var(--space-md);
  }

  .footer-three-col {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .header-centered {
    align-items: flex-start;
    text-align: left;
    padding-block: var(--space-sm);
    padding-right: 5rem;
  }

  .logo-center {
    font-size: 1.375rem;
  }

  .logo-tagline {
    text-align: left;
  }

  .nav-toggle {
    display: inline-block;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(300px, 85vw);
    height: 100vh;
    height: 100dvh;
    margin-top: 0;
    padding: calc(var(--header-height) + var(--space-md)) var(--space-md) var(--space-md);
    background: var(--surface);
    border-top: none;
    border-left: 1px solid var(--border);
    box-shadow: -8px 0 24px rgba(0, 0, 0, 0.08);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    z-index: 150;
  }

  .main-nav.is-active,
  .main-nav.open {
    transform: translateX(0);
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .main-nav a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
  }

  .main-nav a.is-active {
    border-bottom-color: var(--text);
  }

  .hero-lead {
    padding-block: var(--space-lg);
    text-align: left;
  }

  .footer-three-col {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .cookie-inline {
    text-align: left;
  }
}

@media (max-width: 480px) {
  :root {
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --grid-gap: 1.5rem;
  }

  .analytical-note {
    padding: var(--space-sm);
    font-size: 0.875rem;
  }

  .featured-story h2 {
    font-size: 1.375rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .main-nav {
    transition: none;
  }
}