:root, [data-theme="light"] {
  --bg: #ffffff;
  --fg: #111111;
  --sidebar-bg: #f9f9f9;
  --sidebar-border: #e2e2e2;
  --surface: #ffffff;
  --surface-alt: #f5f5f5;
  --surface-hover: #ebebeb;
  --border: #dcdcdc;
  --border-strong: #000000;
  --text-muted: #555555;
  --text-subtle: #777777;
  --input-bg: #ffffff;
  --btn-bg: #000000;
  --btn-fg: #ffffff;
  --btn-hover: #2b2b2b;
  --active-item: #000000;
  --active-item-fg: #ffffff;

  --serif: "Times New Roman", Times, "Liberation Serif", Georgia, serif;
  --mono: "SF Mono", Monaco, "Cascadia Code", "Courier New", Courier, monospace;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 2.5rem;
  --border-color: var(--border);
  --border-subtle: #eaeaea;
  --card-color: var(--surface);
  --surface-color: #f5f5f5;
  --text-color: var(--fg);
  --bg-color: var(--bg);
  --muted-color: var(--text-muted);
  --font-mono: var(--mono);
  --font-serif: var(--serif);
}

[data-theme="dark"] {
  --bg: #0b0b0b;
  --fg: #f0f0f0;
  --sidebar-bg: #050505;
  --sidebar-border: #1f1f1f;
  --surface: #121212;
  --surface-alt: #171717;
  --surface-hover: #202020;
  --border: #282828;
  --border-strong: #ffffff;
  --text-muted: #999999;
  --text-subtle: #666666;
  --input-bg: #040404;
  --btn-bg: #ffffff;
  --btn-fg: #000000;
  --btn-hover: #d5d5d5;
  --active-item: #ffffff;
  --active-item-fg: #000000;

  --border-color: #282828;
  --border-subtle: #181818;
  --card-color: #121212;
  --surface-color: #121212;
  --text-color: #f0f0f0;
  --bg-color: #0b0b0b;
  --muted-color: #999999;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background-color: var(--bg);
  background-image:
    radial-gradient(at 10% 12%, var(--gradient-orb-1, rgba(99, 102, 241, 0.08)) 0px, transparent 55%),
    radial-gradient(at 90% 18%, var(--gradient-orb-2, rgba(16, 185, 129, 0.07)) 0px, transparent 50%),
    radial-gradient(at 50% 88%, var(--gradient-orb-3, rgba(168, 85, 247, 0.06)) 0px, transparent 60%);
  background-attachment: fixed;
  background-size: 100% 100%;
  color: var(--fg);
  font-family: var(--serif);
  line-height: 1.55;
  display: flex;
  overflow-x: hidden;
  transition: background 0.15s ease, color 0.15s ease;
}

.app-container {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

/* ─── SIDEBAR ────────────────────────────────────────────────────────────── */
.sidebar {
  width: 300px;
  min-width: 300px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 150;
  overflow-y: auto;
  scrollbar-width: thin;
}

.sidebar-header {
  padding: 1.15rem 1.15rem 0.85rem;
  border-bottom: 1px solid var(--sidebar-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.sidebar-brand {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.sidebar-search-box {
  padding: 0.75rem 0.85rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  border-bottom: 1px solid var(--sidebar-border);
  background: var(--sidebar-bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.sidebar-search {
  padding: 0.55rem 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  border: 1px solid #3b82f6;
  border-radius: 6px;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.25);
  animation: searchGlowPulse 4s infinite ease-in-out;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.sidebar-search:focus-within {
  border-color: #60a5fa !important;
  box-shadow: 0 0 16px rgba(59, 130, 246, 0.5) !important;
  animation: none;
}

@keyframes searchGlowPulse {
  0%, 100% { box-shadow: 0 0 6px rgba(59, 130, 246, 0.2); border-color: rgba(59, 130, 246, 0.5); }
  50% { box-shadow: 0 0 14px rgba(59, 130, 246, 0.55); border-color: rgba(59, 130, 246, 0.95); }
}

.sidebar-search svg { color: #3b82f6; flex-shrink: 0; }
.sidebar-search input {
  width: 100%;
  background: transparent;
  border: none;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--fg);
  outline: none;
}

.search-tooltip {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 0.2rem;
}
.shuffle-btn {
  background: transparent;
  border: none;
  color: #3b82f6;
  font-family: var(--mono);
  font-size: 0.68rem;
  cursor: pointer;
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  text-decoration: underline;
}
.shuffle-btn:hover { color: var(--fg); }

/* Shimmer / Shuffle glow animation on items */
@keyframes itemShuffleGlow {
  0% { transform: scale(1); background: transparent; }
  50% { transform: scale(1.02); background: rgba(59, 130, 246, 0.18); border-color: #3b82f6; }
  100% { transform: scale(1); background: transparent; }
}
.shuffle-highlight {
  animation: itemShuffleGlow 1.8s ease-in-out;
}

.sidebar-nav {

  padding: 0.5rem 0.75rem 1.5rem;
  flex: 1;
}
.nav-group-title {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-subtle);
  margin: 1.25rem 0.5rem 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.nav-group-title:first-child { margin-top: 0.25rem; }

.nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.65rem;
  color: var(--fg);
  text-decoration: none;
  font-family: var(--serif);
  font-size: 0.95rem;
  border-radius: 2px;
  transition: background 0.1s, color 0.1s;
}
.nav-link-content {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav-link:hover {
  background: var(--surface-hover);
}
.nav-link.active {
  background: var(--active-item);
  color: var(--active-item-fg);
  font-weight: bold;
}
.nav-badge {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-muted);
}
.nav-link.active .nav-badge {
  color: var(--active-item-fg);
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  background: var(--sidebar-bg);
}
.theme-switch-btn {
  width: 100%;
  background: var(--surface);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.5rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
.theme-switch-btn:hover {
  border-color: var(--border-strong);
}

/* ─── MAIN CONTENT ───────────────────────────────────────────────────────── */
.content-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow-y: auto;
}

.topbar {
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}
.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--fg);
  font-size: 1.1rem;
  padding: 0.3rem 0.6rem;
  cursor: pointer;
  font-family: var(--mono);
}
.breadcrumbs {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.breadcrumbs a {
  color: var(--fg);
  text-decoration: none;
}
.breadcrumbs a:hover { text-decoration: underline; }

.privacy-badge {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.quick-search-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.35rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  cursor: pointer;
  border-radius: 4px;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.quick-search-btn:hover {
  border-color: var(--border-strong);
  color: var(--fg);
  background: var(--surface-hover);
}
.quick-search-kbd {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.65rem;
  color: var(--text-subtle);
  line-height: 1;
}
@media (max-width: 600px) {
  .quick-search-text, .quick-search-kbd {
    display: none;
  }
  .quick-search-btn {
    padding: 0.35rem 0.5rem;
  }
}
.search-modal-backdrop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 10000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10vh;
}
.search-modal-card {
  background: var(--bg);
  border: 1px solid var(--border-strong);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  width: 92%;
  max-width: 620px;
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 75vh;
}
.search-modal-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.search-modal-header input {
  flex: 1;
  background: transparent !important;
  border: none !important;
  color: var(--fg) !important;
  font-family: var(--serif) !important;
  font-size: 1.1rem !important;
  outline: none !important;
}
.search-modal-header input::placeholder {
  color: var(--text-subtle);
  font-family: var(--serif);
}
.search-modal-close {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
}
.search-modal-close:hover {
  background: var(--surface-hover);
  color: var(--fg);
}
.search-modal-results {
  overflow-y: auto;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.search-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 0.85rem;
  text-decoration: none;
  border-radius: 4px;
  color: var(--fg);
  font-family: var(--serif);
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: background 0.1s, border-color 0.1s;
}
.search-result-item:hover, .search-result-item.selected {
  background: var(--surface-hover);
  border-color: var(--border);
}
.search-result-title {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--fg);
}
.search-result-badge {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  background: var(--surface-alt);
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid var(--border);
  white-space: nowrap;
}
.search-modal-footer {
  padding: 0.5rem 1rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}
.search-modal-footer kbd {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  padding: 1px 4px;
  border-radius: 3px;
  color: var(--text-subtle);
}

.layout-with-rail {
  display: flex;
  justify-content: center;
  gap: 2rem;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
}
.main-body {
  max-width: 1050px;
  width: 100%;
  flex: 1;
  min-width: 0;
}
.right-sponsor-rail {
  width: 170px;
  flex-shrink: 0;
  display: none;
}
@media (min-width: 1360px) {
  .right-sponsor-rail {
    display: block;
    position: sticky;
    top: 70px;
    height: fit-content;
  }
}

.hero {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}
.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 0.75rem;
}
.hero p {
  color: var(--text-muted);
  font-size: 1.2rem;
  max-width: 700px;
  font-style: italic;
}

.category-section {
  margin-bottom: 3rem;
}
.category-header {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}
.category-title-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.category-count {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: normal;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.1s, border-color 0.15s, background 0.15s;
}
.tool-card:hover {
  border-color: var(--border-strong);
  background: var(--surface-hover);
  transform: translateY(-2px);
}
.tool-card h3 {
  font-family: var(--serif);
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
  font-weight: 700;
  color: var(--fg);
}
.tool-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.tool-card .tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 1rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  text-transform: uppercase;
}

/* ─── TECH ARTICLES & EDITORIAL STYLING ─── */
.article-container {
  max-width: 840px;
  margin: 0 auto;
}
.article-header {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.article-header h1 {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 2.7rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}
.article-meta span {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.article-body {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--fg);
}
.article-body h2 {
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}
.article-body h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 700;
  margin: 1.75rem 0 0.75rem;
}
.article-body p {
  margin-bottom: 1.35rem;
}
.article-body ul, .article-body ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}
.article-body li {
  margin-bottom: 0.5rem;
}
.article-callout {
  background: var(--surface-alt);
  border-left: 4px solid var(--fg);
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  font-style: italic;
}
.code-block-wrapper {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  padding: 1.25rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.88rem;
  line-height: 1.5;
}
.code-block-wrapper pre {
  margin: 0;
  background: transparent;
  padding: 0;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}
.article-cta-box {
  background: var(--surface);
  border: 2px solid var(--fg);
  padding: 1.5rem;
  margin: 2.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.article-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}
.article-journal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.15s, border-color 0.15s, background 0.15s;
}
.article-journal-card:hover {
  border-color: var(--fg);
  background: var(--surface-hover);
  transform: translateY(-2px);
}
.article-journal-tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}
.article-journal-card h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}
.article-journal-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.ad-blend-box {
  margin: 2rem 0;
  padding: 1rem;
  background: linear-gradient(135deg, var(--surface) 0%, var(--bg) 40%, var(--surface) 100%);
  border: 1px solid color-mix(in srgb, var(--border) 60%, transparent);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  position: relative;
  border-radius: 6px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.3s ease;
}
.ad-blend-box:hover { border-color: var(--border); }
.ad-blend-box::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border) 30%, var(--border) 70%, transparent 100%);
  opacity: 0.4;
}
.ad-blend-box::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border) 30%, var(--border) 70%, transparent 100%);
  opacity: 0.25;
}
.ad-desktop-leaderboard {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 90px;
  width: 100%;
}
.ad-mobile-banner {
  display: none;
  justify-content: center;
  align-items: center;
  min-height: 50px;
  width: 100%;
}
.ad-sidebar-card {
  margin: 1.25rem 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 160px;
  min-height: 300px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--sidebar-border) 50%, transparent);
  padding: 0.5rem 0;
  background: linear-gradient(180deg, var(--surface) 0%, transparent 100%);
  position: relative;
  border-radius: 4px;
  transition: border-color 0.3s;
}
.ad-sidebar-card:hover { border-color: var(--sidebar-border); }
.ad-sidebar-card::before {
  content: "";
  position: absolute;
  top: 0; left: 15%; right: 15%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  opacity: 0.35;
}
.ad-unit-300x250 {
  width: 300px;
  height: 250px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ad-unit-468x60 {
  width: 468px;
  height: 60px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ad-promo-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--surface) 0%, var(--bg) 50%, var(--surface) 100%);
  border: 1px solid color-mix(in srgb, var(--border) 50%, transparent);
  padding: 1.25rem;
  min-height: 320px;
  position: relative;
  overflow: hidden;
  border-radius: 6px;
  transition: border-color 0.3s;
}
.ad-promo-card:hover { border-color: var(--border); }
.ad-promo-card::before {
  content: "";
  position: absolute;
  top: 0; left: 20%; right: 20%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  opacity: 0.35;
}
.ad-label {
  font-family: var(--mono);
  font-size: 0.55rem;
  color: color-mix(in srgb, var(--text-subtle) 50%, transparent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 0.5rem;
  opacity: 0.5;
  transition: opacity 0.3s;
}
.ad-blend-box:hover .ad-label,
.ad-sidebar-card:hover .ad-label,
.ad-promo-card:hover .ad-label { opacity: 0.3; }

.docked-sticky-ad {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99999;
  background: var(--surface);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.12);
  padding: 0.5rem 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s ease;
}
.docked-sticky-ad.collapsed {
  transform: translateY(calc(100% - 26px));
  box-shadow: none;
}
.docked-sticky-ad .toggle-btn {
  position: absolute;
  right: 12px;
  top: -1px;
  transform: translateY(-100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom: none;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  cursor: pointer;
  padding: 3px 12px;
  border-radius: 4px 4px 0 0;
  transition: color 0.2s, background 0.2s;
  line-height: 1;
  z-index: 1;
}
.docked-sticky-ad .toggle-btn:hover {
  color: var(--fg);
  background: var(--surface-alt);
}
.docked-sticky-ad .toggle-btn .chevron {
  display: inline-block;
  transition: transform 0.35s ease;
  font-size: 0.8rem;
}
.docked-sticky-ad.collapsed .toggle-btn .chevron {
  transform: rotate(180deg);
}

@media (max-width: 768px) {
  .ad-desktop-leaderboard { display: none !important; }
  .ad-mobile-banner { display: flex !important; }
  .ad-unit-468x60 { display: none !important; }
  .docked-sticky-ad { padding: 0.35rem 0.5rem; }
  .ad-hero-undercard { display: none; }
  .ad-category-break { padding: 0.5rem; }
  .ad-category-break .ad-unit-468x60 { display: none !important; }
  .mobile-welcome-overlay .ad-unit-300x250 { width: 280px; height: 233px; }
}
.ad-hero-undercard {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 1.5rem auto;
  padding: 1rem;
  background: linear-gradient(135deg, var(--surface) 0%, var(--bg) 100%);
  border: 1px solid color-mix(in srgb, var(--border) 50%, transparent);
  text-align: center;
  position: relative;
  border-radius: 6px;
}
.ad-hero-undercard::before {
  content: "";
  position: absolute;
  top: 0; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  opacity: 0.3;
}
.ad-category-break {
  margin: 1.5rem 0;
  padding: 0.75rem;
  background: linear-gradient(135deg, var(--surface) 0%, var(--bg) 60%, var(--surface) 100%);
  border: 1px solid color-mix(in srgb, var(--border) 40%, transparent);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  border-radius: 6px;
}
.ad-category-break::before {
  content: "";
  position: absolute;
  top: 0; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  opacity: 0.3;
}
.sponsor-grid {
  width: 100%;
  max-width: 1400px;
  margin: 2.5rem auto 0;
  padding: 1.5rem 1.5rem;
  border-top: 1px solid color-mix(in srgb, var(--border) 40%, transparent);
  box-sizing: border-box;
  clear: both;
}
.sponsor-grid-title {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: color-mix(in srgb, var(--text-subtle) 70%, transparent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.sponsor-grid-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
  opacity: 0.3;
}
.sponsor-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}
@media (max-width: 768px) {
  .sponsor-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .sponsor-cards { grid-template-columns: 1fr; }
}
.sponsor-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: linear-gradient(145deg, var(--surface) 0%, var(--bg) 100%);
  border: 1px solid color-mix(in srgb, var(--border) 35%, transparent);
  border-radius: 5px;
  overflow: hidden;
  transition: border-color 0.25s, transform 0.2s;
  cursor: pointer;
}
.sponsor-card:hover {
  border-color: var(--border);
  transform: translateY(-1px);
}
.sponsor-card-thumb {
  width: 100%;
  height: 80px;
  position: relative;
  overflow: hidden;
}
.sponsor-card-body {
  padding: 0.6rem 0.7rem;
}
.sponsor-card-body h4 {
  font-family: var(--serif);
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 0.4rem;
  color: var(--fg);
}
.sponsor-card-body .sponsor-source {
  font-family: var(--mono);
  font-size: 0.55rem;
  color: color-mix(in srgb, var(--text-muted) 60%, transparent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.ad-pre-footer {
  width: 100%;
  max-width: 1400px;
  margin: 2rem auto 0;
  padding: 1.5rem 1.5rem;
  background: linear-gradient(180deg, var(--surface-alt) 0%, var(--bg) 100%);
  border-top: 1px solid color-mix(in srgb, var(--border) 40%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 40%, transparent);
  text-align: center;
  box-sizing: border-box;
  clear: both;
}
.ad-pre-footer::before {
  content: "";
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border) 30%, var(--border) 70%, transparent 100%);
  opacity: 0.3;
  margin-bottom: 1rem;
}
.mobile-welcome-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 999999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  backdrop-filter: blur(4px);
}
.mobile-welcome-overlay .close-btn {
  background: #fff;
  color: #111;
  border: none;
  padding: 0.5rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  cursor: pointer;
  letter-spacing: 0.05em;
}
.ad-article-mid {
  margin: 2rem auto;
  padding: 1rem;
  background: linear-gradient(135deg, var(--surface) 0%, var(--bg) 50%, var(--surface) 100%);
  border: 1px solid color-mix(in srgb, var(--border) 50%, transparent);
  text-align: center;
  position: relative;
  border-radius: 6px;
}
.ad-article-mid::before {
  content: "";
  position: absolute;
  top: 0; left: 15%; right: 15%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  opacity: 0.3;
}
.sponsor-notice {
  position: fixed;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999998;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(0,0,0,0.15);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  max-width: 560px;
  width: calc(100% - 2rem);
  font-family: var(--serif);
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.sponsor-notice::before {
  content: "";
  position: absolute;
  top: 0; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  opacity: 0.3;
}
.sponsor-notice strong { color: var(--fg); }
.sponsor-notice .dismiss-btn {
  background: var(--fg);
  color: var(--bg);
  border: none;
  padding: 0.35rem 0.85rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  cursor: pointer;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}

.promo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}
.promo-card {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.promo-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}
.promo-badge {
  font-family: var(--mono);
  font-size: 0.65rem;
  background: var(--fg);
  color: var(--bg);
  padding: 2px 6px;
  font-weight: bold;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  display: inline-block;
  border-radius: 3px;
}

/* ─── COGNITIVE TRUST BAR (BEHAVIORAL SEO & ANTI-POGO-STICKING) ─── */
.cognitive-trust-bar {
  margin-bottom: 1.25rem;
  padding: 0.55rem 0.95rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid #10b981;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  line-height: 1.4;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}
.trust-bar-left, .trust-bar-right {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem;
}
.trust-pill-live {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #10b981;
  font-weight: 600;
}
.pulse-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 6px rgba(16, 185, 129, 0.7);
  animation: cognitivePulse 2s infinite ease-in-out;
}
@keyframes cognitivePulse {
  0% { transform: scale(0.95); opacity: 0.8; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.1); opacity: 1; box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); opacity: 0.8; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}
.trust-sep {
  color: var(--border);
}
.trust-metric {
  color: var(--text-muted);
}
.trust-stars {
  color: #f59e0b;
  font-weight: 600;
}
.trust-feature {
  color: var(--fg);
  font-size: 0.73rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.tool-workspace {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2rem;
  margin: 1.5rem 0 2rem;
}
.drop-zone {
  border: 2px dashed var(--border);
  padding: 3rem 1.5rem;
  text-align: center;
  cursor: pointer;
  background: var(--surface-alt);
  transition: border-color 0.15s;
}
.drop-zone:hover { border-color: var(--border-strong); }

.btn-primary, button[style*="text-transform:uppercase"], #downloadBtn {
  background: var(--btn-bg) !important;
  color: var(--btn-fg) !important;
  border: 1px solid var(--border-strong) !important;
  padding: 0.8rem 1.5rem !important;
  font-family: var(--serif) !important;
  font-weight: 700 !important;
  font-size: 1rem !important;
  cursor: pointer !important;
  text-transform: uppercase !important;
  letter-spacing: 0.05em !important;
  box-shadow: none !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.5rem !important;
}
.btn-primary:hover, button[style*="text-transform:uppercase"]:hover, #downloadBtn:hover {
  background: var(--btn-hover) !important;
}

textarea, input[type="text"], input[type="number"], input[type="url"], select {
  background: var(--input-bg) !important;
  color: var(--fg) !important;
  border: 1px solid var(--border) !important;
  outline: none !important;
  font-family: var(--serif) !important;
}
textarea:focus, input[type="text"]:focus, input[type="url"]:focus, select:focus {
  border-color: var(--border-strong) !important;
}

footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  background: var(--bg);
  font-family: var(--serif);
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
footer a { color: var(--fg); text-decoration: none; }
footer a:hover { text-decoration: underline; }

@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: -300px;
    transition: left 0.25s ease;
    box-shadow: 2px 0 10px rgba(0,0,0,0.15);
  }
  .sidebar.open {
    left: 0;
  }
  .mobile-toggle {
    display: block;
  }
  .topbar {
    padding: 0.75rem 1rem;
  }
  .main-body {
    padding: 1.5rem 1rem;
  }
  .tools-grid {
    grid-template-columns: 1fr;
  }
}