/* ============================================================
   DiazoDb — main.css
   ============================================================ */

/* --- Reset & base ------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --green: #776c4d;
  --green-dark: #0f6e56;
  --green-deeper: #085041;
  --green-bg: #e1f5ee;
  --green-bg2: #9fe1cb;

  --text-primary: #1a1a18;
  --text-secondary: #4a4a47;
  --text-muted: #888780;

  --bg-page: #f7f6f2;
  --bg-surface: #ffffff;
  --bg-subtle: #f0efe9;

  --border: rgba(30, 30, 20, 0.1);
  --border-med: rgba(30, 30, 20, 0.18);

  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-serif: "Lora", Georgia, serif;
  --font-mono: "DM Mono", monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Layout */
  --top-header-margin: 3rem;
  --max-w: 1200px;
}

html,
body {
  height: 100%;
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background: var(--bg-page);
  color: var(--text-primary);
  /* line-height: 1.6; */
  -webkit-font-smoothing: antialiased;
  background-image: url("../images/header.png");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: top center;
}

/* body{
  border-radius: 20px;
} */

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

/* --- Site header -------------------------------------------- */

.header {
  display: flex;
  align-items: center;
  align-content: center;
  color: rgba(255, 255, 255);
  padding: 0.5em 1em;
  height: var(--top-header-margin);
  justify-content: space-between;
  gap: 1.5rem;
  z-index: 100;
}

.header > * {
  flex: 0 0 auto;
}

.header .header__link {
  align-self: baseline;
}

.header a,
.header button.button,
.header a:link,
.header a:visited,
.header a:hover,
.header a:active,
.header .header__link > a {
  display: inline-block;
  margin-bottom: 0;
  color: rgba(255, 255, 255);
  transition:
    background-color 0.25s ease-out,
    color 0.25s ease-out;
  font-weight: 600;
}

.header__navigation {
  flex-shrink: 1;
  list-style: none;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  margin: 0;
  padding: 0 0.5ch;
  gap: 0.5ch;
  scrollbar-width: none;
}

.header__navigation > ul {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.5ch;
  margin: 0;
  padding: 0;
}

.header__navigation > ul > li {
  display: inline-flex;
}

.header__navigation::-webkit-scrollbar {
  display: none;
}

.header__navigation a,
.header__navigation button.button {
  margin: 0.1rem 0.25rem;
  border-bottom: 1px solid transparent;
}

.header__navigation a:hover,
.header__navigation button.button:hover {
  border-bottom-color: currentColor;
}

.logo {
  /* font-family: var(--font-serif); */
  font-family: Lato, sans-serif;
  font-size: 20px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.logo-badge {
  background: var(--green);
  color: #fff;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 2px 6px;
}

/* --- Hero --------------------------------------------------- */
.hero {
  border-bottom: 0.5px solid var(--border);
  background-color: var(--bg-page);
  padding: 2.5rem 2rem 2rem;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.hero-eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.6rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 500;
  line-height: 1.3;
  max-width: 620px;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.hero-sub {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 540px;
}

/* --- Search ------------------------------------------------- */
.search-wrap {
  border-bottom: 0.5px solid var(--border);
  background-color: var(--bg-page);
  padding: 0.875rem 2rem;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.search-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-subtle);
  border: 0.5px solid var(--border-med);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  max-width: 520px;
  transition: border-color 0.15s;
}

.search-bar:focus-within {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(29, 158, 117, 0.12);
}

.search-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.search-bar input {
  border: none;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-primary);
  outline: none;
  flex: 1;
  min-width: 0;
}

.search-bar input::placeholder {
  color: var(--text-muted);
}

.search-kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 0.5px solid var(--border-med);
  border-radius: var(--radius-sm);
  padding: 1px 5px;
  white-space: nowrap;
}

/* --- Page layout -------------------------------------------- */
.page-layout {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 268px;
}

/* --- Feed column -------------------------------------------- */
.feed-col {
  border-right: 0.5px solid var(--border);
  background-color: var(--bg-page);
  padding: 1.5rem 2rem;
  min-height: 80vh;
}

/* --- Topic tabs -------------------------------------------- */
.topic-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.tab {
  font-family: var(--font-sans);
  font-size: 12px;
  padding: 5px 13px;
  border-radius: 20px;
  border: 0.5px solid var(--border-med);
  color: var(--text-secondary);
  background: var(--bg-surface);
  cursor: pointer;
  transition: all 0.15s;
}

.tab:hover {
  border-color: var(--green);
  color: var(--green);
}

.tab.active {
  background: var(--text-primary);
  color: var(--bg-surface);
  border-color: var(--text-primary);
}

/* --- Section label ----------------------------------------- */
.section-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

/* --- Article cards ----------------------------------------- */
.article-card {
  padding: 1.25rem 0;
  border-bottom: 0.5px solid var(--border);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 88px;
  gap: 16px;
  align-items: start;
  cursor: pointer;
  transition: opacity 0.15s;
}

.article-card:last-child {
  border-bottom: none;
}
.article-card:hover .article-title {
  color: var(--green);
}

.article-tag {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 5px;
}

.article-title {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.35;
  margin-bottom: 6px;
  color: var(--text-primary);
  transition: color 0.15s;
}

.article-excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-meta {
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.meta-dot {
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: var(--border-med);
  flex-shrink: 0;
}

.article-thumb {
  width: 88px;
  height: 66px;
  border-radius: var(--radius-md);
  background: var(--green-bg);
  border: 0.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb-placeholder {
  font-size: 8px;
  color: var(--green-dark);
  text-align: center;
  padding: 6px;
  line-height: 1.4;
}

/* --- No results -------------------------------------------- */
.no-results {
  padding: 3rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

/* --- Sidebar ----------------------------------------------- */
.sidebar-col {
  padding: 1.5rem 1.25rem;
  background-color: var(--bg-page);
}

.sidebar-section {
  margin-bottom: 2rem;
}

.sidebar-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.875rem;
}

/* Featured cards */
.featured-card {
  background: var(--bg-subtle);
  border-radius: var(--radius-lg);
  padding: 0.875rem 1rem;
  margin-bottom: 0.625rem;
  border: 0.5px solid var(--border);
  cursor: pointer;
  transition: border-color 0.15s;
}

.featured-card:hover {
  border-color: var(--green);
}

.featured-card .f-tag {
  font-size: 9px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--green-dark);
  margin-bottom: 5px;
}

.featured-card .f-title {
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.35;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.featured-card .f-meta {
  font-size: 11px;
  color: var(--text-muted);
}

/* Category list */
.cat-list {
  list-style: none;
}

.cat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 0;
  border-bottom: 0.5px solid var(--border);
  cursor: pointer;
  transition: color 0.12s;
}

.cat-item:last-child {
  border-bottom: none;
}
.cat-item:hover .cat-name {
  color: var(--green);
}

.cat-name {
  font-size: 13px;
  color: var(--text-primary);
}

.cat-count {
  font-size: 10px;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border: 0.5px solid var(--border);
  padding: 1px 7px;
  border-radius: 10px;
}

/* Residue cloud */
.residue-cloud {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  line-height: 2;
}

.residue-pill {
  display: inline-block;
  background: var(--green-bg);
  color: var(--green-deeper);
  border-radius: var(--radius-sm);
  padding: 1px 6px;
  margin: 2px;
  font-size: 11px;
  cursor: pointer;
  transition: background 0.12s;
}

.residue-pill:hover {
  background: var(--green-bg2);
}

.sidebar-link {
  display: inline-block;
  margin-top: 0.625rem;
  font-size: 12px;
  color: var(--green);
}

.sidebar-link:hover {
  text-decoration: underline;
}

/* --- Footer ------------------------------------------------- */

footer {
  border-top: 1px solid #ddd;
  background: var(--bg-subtle);
  min-height: 25px;
  line-height: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 10px;
  text-align: center;
  font-size: 12px;
  color: var(--text-secondary);
  max-width: var(--max-w);
  margin: 0 auto;
}

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

/* --- Responsive -------------------------------------------- */
@media (max-width: 900px) {
  .page-layout {
    grid-template-columns: 1fr;
  }
  .feed-col {
    border-right: none;
    border-bottom: 0.5px solid var(--border);
  }
  .sidebar-col {
    padding: 1.5rem 2rem;
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 20px;
  }
  .nav {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .feed-col,
  .sidebar-col,
  .search-wrap {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .site-header {
    padding: 0 1rem;
  }
  .hero {
    padding: 1.5rem 1rem;
  }
  .article-card {
    grid-template-columns: 1fr;
  }
  .article-thumb {
    width: 100%;
    height: 140px;
  }
  .search-kbd {
    display: none;
  }
}