/* Rim & Leitura — nefro.digital
   Design: ink-cream editorial | carousel hero | masthead footer */

:root {
  --bg: #f5f0e8;
  --bg-elevated: #faf6ef;
  --text: #1c1814;
  --text-muted: #6b6358;
  --accent: #5c4033;
  --accent-hover: #4a3329;
  --border: #d9cfc0;
  --border-strong: #1c1814;
  --surface: #ebe4d8;
  --tag-bg: #e8dfd2;
  --shadow: 0 2px 12px rgba(28, 24, 20, 0.08);

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

  --container: 960px;
  --sidebar-width: 200px;
  --header-height: 72px;

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

  --radius-sm: 4px;
  --radius-pill: 999px;
  --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: 1.65;
  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: 1.2;
  margin: 0 0 var(--space-sm);
  color: var(--text);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.25rem); }
h2 { font-size: clamp(1.375rem, 3vw, 1.75rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.06em; }

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(--bg);
  border-bottom: 2px solid var(--border-strong);
  box-shadow: 0 1px 0 rgba(28, 24, 20, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: var(--header-height);
  padding-block: var(--space-sm);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--text);
  flex-shrink: 0;
}

.logo img {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.logo > span {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.logo-tagline {
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.875rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.menu-toggle:hover {
  background: var(--border);
}

.main-nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  display: inline-block;
  padding: 0.4375rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: var(--radius-pill);
  transition: background var(--transition), color var(--transition);
}

.main-nav a:hover {
  color: var(--text);
  background: var(--surface);
}

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

/* ── Hero carousel ────────────────────────────────────────── */

.hero-carousel {
  padding-block: var(--space-lg);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
}

.carousel {
  position: relative;
  overflow: hidden;
}

.carousel-track {
  position: relative;
}

.carousel-slide {
  display: none;
  animation: fadeIn 0.4s ease;
}

.carousel-slide.is-active,
.carousel-slide.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.carousel-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.carousel-content h1 {
  margin-bottom: var(--space-sm);
}

.carousel-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-sm);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.carousel-meta time {
  font-variant-numeric: tabular-nums;
}

.carousel-excerpt {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.carousel-controls {
  display: flex;
  gap: 0.5rem;
  margin-top: var(--space-md);
}

.carousel-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  font-size: 1.125rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.carousel-btn:hover {
  background: var(--surface);
  border-color: var(--text-muted);
}

.carousel-dots {
  display: flex;
  gap: 0.5rem;
  margin-top: var(--space-sm);
}

.carousel-dot {
  width: 0.625rem;
  height: 0.625rem;
  padding: 0;
  border: 1px solid var(--text-muted);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.carousel-dot.is-active,
.carousel-dot.active {
  background: var(--text);
  border-color: var(--text);
}

.img-4-3 {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
}

.img-4-3 img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── Hero grid & page layout ──────────────────────────────── */

.hero-grid {
  padding-block: var(--space-xl);
}

.page-layout,
.article-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.sidebar-rail {
  position: sticky;
  top: calc(var(--header-height) + var(--space-md));
}

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

.sidebar-block:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.sidebar-block h3 {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

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

.sidebar-block li {
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.sidebar-block li:last-child {
  margin-bottom: 0;
}

.sidebar-block a {
  color: var(--text);
  text-decoration: none;
}

.sidebar-block a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.section-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.editorial-intro {
  margin-bottom: var(--space-xl);
  font-size: 1.0625rem;
  line-height: 1.75;
}

.editorial-intro p:last-child {
  margin-bottom: 0;
}

/* ── Magazine feed & cards ────────────────────────────────── */

.magazine-feed {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.card:hover {
  box-shadow: var(--shadow);
  border-color: var(--text-muted);
}

.card-featured {
  grid-column: 1 / -1;
}

.card-featured .card-link {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.card-body {
  padding: var(--space-md);
}

.card-body h2,
.card-body h3 {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
  transition: color var(--transition);
}

.card:hover .card-body h2,
.card:hover .card-body h3 {
  color: var(--accent);
}

.card-body p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.card-meta {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

/* ── Tags & buttons ───────────────────────────────────────── */

.tag {
  display: inline-block;
  padding: 0.2rem 0.625rem;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: var(--tag-bg);
  border-radius: var(--radius-sm);
  text-decoration: none;
}

a.tag:hover {
  background: var(--border);
  color: var(--accent-hover);
}

.btn {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--bg);
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.btn:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg);
}

.cookie-decline {
  color: var(--text);
  background: transparent;
  border-color: var(--border);
}

.cookie-decline:hover {
  background: var(--surface);
  color: var(--text);
}

/* ── Page & article layouts ─────────────────────────────────── */

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

.page-header h1 {
  margin-bottom: 0.375rem;
}

.updated-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0;
}

.page-content {
  max-width: 42rem;
}

.page-content.wide {
  max-width: none;
}

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

.page-content h2:first-child {
  margin-top: 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  max-width: none;
}

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

.article-lead {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--text-muted);
  margin: var(--space-sm) 0 0;
}

.article-content {
  font-size: 1.0625rem;
  line-height: 1.75;
}

.article-content h2 {
  margin-top: var(--space-xl);
  padding-top: var(--space-sm);
}

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

.pull-quote {
  margin: var(--space-lg) 0;
  padding: var(--space-md) 0 var(--space-md) var(--space-md);
  border-left: 3px solid var(--accent);
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-style: italic;
  line-height: 1.5;
  color: var(--text);
}

.pull-quote cite {
  display: block;
  margin-top: var(--space-sm);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-style: normal;
  color: var(--text-muted);
}

.article-featured-image {
  margin-bottom: var(--space-lg);
}

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

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

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

.related-articles li {
  margin-bottom: 0.5rem;
}

.author-note {
  margin-top: var(--space-xl);
  padding: var(--space-md);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.author-note-name {
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.author-note-bio {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0;
}

.prose {
  max-width: 42rem;
  margin: var(--space-lg) auto;
  padding-inline: var(--space-md);
  font-size: 0.9375rem;
  color: var(--text-muted);
}

/* ── Articles list ──────────────────────────────────────────── */

.articles-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.articles-list > li {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: var(--space-md);
  padding-block: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.articles-list > li:first-child {
  padding-top: 0;
}

.articles-list h2,
.articles-list h3 {
  font-size: 1.125rem;
  margin-bottom: 0.375rem;
}

.articles-list h2 a,
.articles-list h3 a {
  color: var(--text);
  text-decoration: none;
}

.articles-list h2 a:hover,
.articles-list h3 a:hover {
  color: var(--accent);
}

.articles-list p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0;
}

/* ── Forms ──────────────────────────────────────────────────── */

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.contact-form label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
}

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

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(92, 64, 51, 0.15);
}

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

.form-notice {
  font-size: 0.875rem;
  color: var(--accent);
  margin: 0;
}

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

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

.site-footer {
  flex-shrink: 0;
  margin-top: auto;
  padding-block: var(--space-xl);
  background: var(--bg-elevated);
  border-top: 3px double var(--border-strong);
}

.masthead {
  text-align: center;
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.masthead-brand {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.375rem;
}

.masthead-tagline {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-grid h4 {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  margin-bottom: 0.75rem;
}

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

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

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

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

.footer-bottom {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-align: center;
  margin: 0;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
}

/* ── Cookie bar ─────────────────────────────────────────────── */

.cookie-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--text);
  color: var(--bg);
  box-shadow: 0 -4px 20px rgba(28, 24, 20, 0.2);
}

.cookie-bar.is-visible {
  display: block;
}

.cookie-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.cookie-inner p {
  flex: 1 1 280px;
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.5;
}

.cookie-inner a {
  color: var(--bg);
  text-decoration: underline;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cookie-actions .btn {
  white-space: nowrap;
}

.cookie-accept {
  background: var(--bg);
  color: var(--text);
  border-color: var(--bg);
}

.cookie-accept:hover {
  background: var(--surface);
  border-color: var(--surface);
  color: var(--text);
}

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

@media (max-width: 900px) {
  .carousel-inner,
  .card-featured .card-link {
    grid-template-columns: 1fr;
  }

  .carousel-inner .img-4-3 {
    order: -1;
  }

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

  .sidebar-rail {
    position: static;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border);
    margin-bottom: var(--space-md);
  }

  .sidebar-block {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
  }

  .magazine-feed {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 768px) {
  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(300px, 85vw);
    height: 100vh;
    height: 100dvh;
    padding: calc(var(--header-height) + var(--space-md)) var(--space-md) var(--space-md);
    background: var(--bg);
    border-left: 2px solid var(--border-strong);
    box-shadow: -8px 0 24px rgba(28, 24, 20, 0.12);
    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: 0.25rem;
  }

  .main-nav a {
    display: block;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
  }

  .articles-list > li {
    grid-template-columns: 1fr;
  }

  .articles-list .img-4-3 {
    max-width: 200px;
  }

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

  .cookie-inner {
    flex-direction: column;
    align-items: stretch;
  }

  .cookie-actions {
    justify-content: flex-end;
  }

  body:has(.cookie-bar.is-visible) {
    padding-bottom: 5rem;
  }
}

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

  .carousel-controls {
    margin-top: var(--space-sm);
  }

  .masthead-brand {
    font-size: 1.5rem;
  }
}

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

  .carousel-slide {
    animation: none;
  }

  .main-nav {
    transition: none;
  }
}