/* ============================================================
   TheChromebooks.com — Google Material 3 inspired theme
   Type: Google Sans (display/UI) · Google Sans Text (body)
         Roboto Mono (data)
   Palette: Google Blue 700 #0b57d0 + Material 3 tonal surfaces
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --primary: #0b57d0;
  --on-primary: #ffffff;
  --primary-container: #d3e3fd;
  --on-primary-container: #041e49;
  --secondary-container: #c2e7ff;
  --on-secondary-container: #001d35;

  --surface: #ffffff;
  --surface-1: #f8fafd;
  --surface-2: #f0f4f9;
  --surface-3: #e9eef6;

  --on-surface: #1f1f1f;
  --on-surface-variant: #444746;
  --outline: #747775;
  --outline-variant: #c4c7c5;

  --success: #146c2e;
  --warning: #8f5000;
  --error: #b3261e;

  --cat-blue: #0b57d0;
  --cat-blue-bg: #d3e3fd;
  --cat-green: #146c2e;
  --cat-green-bg: #c4eed0;
  --cat-teal: #006a6a;
  --cat-teal-bg: #cce8e8;
  --cat-purple: #6b3fb5;
  --cat-purple-bg: #e9ddff;
  --cat-amber: #8f5000;
  --cat-amber-bg: #ffdfa0;
  --cat-red: #b3261e;
  --cat-red-bg: #ffdad6;

  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-full: 999px;

  --max: 1280px;
  --measure: 980px;

  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.06), 0 1px 3px 1px rgba(0, 0, 0, 0.04);
  --shadow-2: 0 2px 6px 2px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.1);

  --font-display: "Google Sans", "Product Sans", Roboto, system-ui, -apple-system, sans-serif;
  --font-body: "Google Sans Text", Roboto, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  color-scheme: light;
}

[data-theme="dark"] {
  --primary: #a8c7fa;
  --on-primary: #062e6f;
  --primary-container: #0842a0;
  --on-primary-container: #d3e3fd;
  --secondary-container: #004a77;
  --on-secondary-container: #c2e7ff;

  --surface: #131314;
  --surface-1: #1e1f20;
  --surface-2: #282a2c;
  --surface-3: #333537;

  --on-surface: #e3e3e3;
  --on-surface-variant: #c4c7c5;
  --outline: #8e918f;
  --outline-variant: #444746;

  --success: #6dd58c;
  --warning: #ffb951;
  --error: #f2b8b5;

  --cat-blue: #a8c7fa;
  --cat-blue-bg: #0842a0;
  --cat-green: #6dd58c;
  --cat-green-bg: #0f5223;
  --cat-teal: #4dd0e1;
  --cat-teal-bg: #004f4f;
  --cat-purple: #cfbcff;
  --cat-purple-bg: #4f2a91;
  --cat-amber: #ffb951;
  --cat-amber-bg: #5b3a00;
  --cat-red: #f2b8b5;
  --cat-red-bg: #8c1d18;

  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.5), 0 1px 3px 1px rgba(0, 0, 0, 0.35);
  --shadow-2: 0 2px 6px 2px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(0, 0, 0, 0.4);

  color-scheme: dark;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

button {
  font: inherit;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0;
  color: var(--on-surface);
}

p {
  margin: 0;
}

::selection {
  background: var(--primary-container);
  color: var(--on-primary-container);
}

:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  background: var(--primary);
  color: var(--on-primary);
  padding: 10px 18px;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 500;
}

.skip-link:focus {
  top: 12px;
  text-decoration: none;
}

.wrap {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

/* ---------- Progress ---------- */
.progress-track {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  z-index: 120;
  background: transparent;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: var(--primary);
  transition: width 0.08s linear;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid var(--outline-variant);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--on-surface);
  flex-shrink: 0;
  min-width: 0;
}

.brand:hover {
  text-decoration: none;
}

.brand-logo {
  display: block;
  height: 34px;
  width: auto;
  max-width: 190px;
  object-fit: contain;
}

.brand .logo-dark {
  display: none;
}

[data-theme="dark"] .brand .logo-light {
  display: none;
}

[data-theme="dark"] .brand .logo-dark {
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-width: 0;
}

.nav-link {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 14px;
  color: var(--on-surface-variant);
  padding: 8px 12px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.nav-link:hover {
  background: var(--surface-2);
  color: var(--on-surface);
  text-decoration: none;
}

.nav-link[aria-current="page"] {
  background: var(--primary-container);
  color: var(--on-primary-container);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--on-surface-variant);
  cursor: pointer;
}

.icon-btn:hover {
  background: var(--surface-2);
  color: var(--on-surface);
}

.menu-btn {
  display: none;
}

/* Theme switch */
.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: var(--radius-full);
  background: var(--surface-2);
  border: 1px solid var(--outline-variant);
}

.theme-option {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--on-surface-variant);
  cursor: pointer;
}

.theme-option:hover {
  color: var(--on-surface);
}

[data-theme="light"] .theme-option[data-theme-set="light"],
[data-theme="dark"] .theme-option[data-theme-set="dark"] {
  background: var(--surface);
  color: var(--primary);
  box-shadow: var(--shadow-1);
}

[data-theme="dark"] .theme-option[data-theme-set="dark"] {
  background: var(--surface-3);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 68px 0 0 0;
  z-index: 99;
  background: var(--surface);
  border-top: 1px solid var(--outline-variant);
  padding: 18px 20px 40px;
  overflow-y: auto;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.mobile-menu.is-open {
  transform: none;
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu a {
  display: block;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--on-surface);
}

.mobile-menu a:hover {
  background: var(--surface-2);
  text-decoration: none;
}

.mobile-menu .mobile-label {
  display: block;
  padding: 18px 16px 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}

/* Search */
.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  display: none;
  padding: 90px 20px 40px;
}

.search-overlay.is-open {
  display: block;
}

.search-box {
  width: min(100%, 640px);
  margin-inline: auto;
}

.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px 10px 20px;
  border-radius: var(--radius-full);
  background: var(--surface-2);
  border: 1px solid var(--outline-variant);
}

.search-input-wrap input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  outline: none;
  font-family: var(--font-body);
  font-size: 17px;
  color: var(--on-surface);
}

.search-input-wrap kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--on-surface-variant);
  border: 1px solid var(--outline-variant);
  border-radius: 6px;
  padding: 2px 6px;
}

.search-input-wrap .search-close {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.search-results {
  margin-top: 18px;
  display: grid;
  gap: 6px;
}

.search-result {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 12px 16px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--on-surface);
  text-align: left;
  cursor: pointer;
}

.search-result:hover,
.search-result:focus-visible {
  background: var(--surface-2);
  text-decoration: none;
}

.search-result strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 14px;
}

.search-result small {
  color: var(--on-surface-variant);
  font-size: 12px;
}

.search-empty {
  color: var(--on-surface-variant);
  font-size: 14px;
  padding: 10px 16px;
}

/* ---------- Layout ---------- */
.page {
  padding: 36px 0 72px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 36px;
  align-items: start;
}

.empty-state {
  color: var(--on-surface-variant);
  font-size: 14px;
  padding: 24px 0;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
  padding: clamp(28px, 4.5vw, 44px);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(900px 420px at 8% -10%, color-mix(in srgb, var(--primary) 16%, transparent), transparent 70%),
    linear-gradient(160deg, var(--surface-1), var(--surface-2));
  border: 1px solid var(--outline-variant);
}

.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 14%, transparent), transparent 68%);
  pointer-events: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--primary);
}

.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
}

.hero-title {
  margin-top: 14px;
  font-size: clamp(32px, 4.4vw, 54px);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 700;
  overflow-wrap: break-word;
}

.hero-title a {
  color: inherit;
}

.hero-dek {
  margin-top: 16px;
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--on-surface-variant);
  max-width: 54ch;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
  margin-top: 20px;
  color: var(--on-surface-variant);
  font-size: 13.5px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero-cover {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--outline-variant);
  box-shadow: var(--shadow-1);
}

.hero-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 1200 / 760;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 14.5px;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover {
  text-decoration: none;
}

.btn-filled {
  background: var(--primary);
  color: var(--on-primary);
}

.btn-filled:hover {
  box-shadow: var(--shadow-2);
  filter: brightness(1.03);
}

.btn-tonal {
  background: var(--primary-container);
  color: var(--on-primary-container);
}

.btn-tonal:hover {
  filter: brightness(0.97);
}

.btn-outline {
  border-color: var(--outline);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--surface-2);
}

.btn-text {
  color: var(--primary);
  padding-inline: 10px;
}

.btn-text:hover {
  background: var(--surface-2);
}

/* ---------- Sections ---------- */
.section {
  margin-top: 56px;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(22px, 2.6vw, 28px);
  letter-spacing: -0.02em;
}

.section-title-sm {
  font-size: 22px;
}

.section-sub {
  margin-top: 4px;
  color: var(--on-surface-variant);
  font-size: 14px;
}

.section-link {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 14px;
  white-space: nowrap;
}

/* ---------- Cards ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 20px;
}

.card {
  grid-column: span 6;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--outline) 60%, var(--outline-variant));
}

.card.third {
  grid-column: span 4;
}

.card-media {
  display: block;
  aspect-ratio: 1200 / 675;
  overflow: hidden;
  background: var(--surface-2);
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.card:hover .card-media img {
  transform: scale(1.025);
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 20px 20px;
  flex: 1;
}

.card-title {
  font-size: 19px;
  line-height: 1.28;
  letter-spacing: -0.01em;
  font-weight: 600;
  overflow-wrap: break-word;
}

.card-title a {
  color: var(--on-surface);
}

.card-title a:hover {
  text-decoration: none;
  color: var(--primary);
}

.card-dek {
  color: var(--on-surface-variant);
  font-size: 14px;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 6px;
  color: var(--on-surface-variant);
  font-size: 12.5px;
}

.card-meta .sep {
  opacity: 0.5;
}

/* Pills */
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px 3px 8px;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 11.5px;
  background: var(--surface-2);
  color: var(--on-surface-variant);
  border: 1px solid transparent;
}

.pill:hover {
  text-decoration: none;
  filter: brightness(0.97);
}

.pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.pill[data-cat="chrome-os"] {
  color: var(--cat-blue);
  background: var(--cat-blue-bg);
}

[data-theme="dark"] .pill[data-cat="chrome-os"] {
  color: #d3e3fd;
  background: #0842a0;
}

.pill[data-cat="chromebooks"] {
  color: var(--cat-green);
  background: var(--cat-green-bg);
}

[data-theme="dark"] .pill[data-cat="chromebooks"] {
  color: #c4eed0;
  background: #0f5223;
}

.pill[data-cat="googlebook"] {
  color: var(--cat-teal);
  background: var(--cat-teal-bg);
}

[data-theme="dark"] .pill[data-cat="googlebook"] {
  color: #b1f0f0;
  background: #004f4f;
}

.pill[data-cat="enterprise"] {
  color: var(--cat-purple);
  background: var(--cat-purple-bg);
}

[data-theme="dark"] .pill[data-cat="enterprise"] {
  color: #eaddff;
  background: #4f2a91;
}

.pill[data-cat="guides"] {
  color: var(--cat-amber);
  background: var(--cat-amber-bg);
}

[data-theme="dark"] .pill[data-cat="guides"] {
  color: #ffdfa0;
  background: #5b3a00;
}

.pill.plain {
  background: var(--surface-2);
  color: var(--on-surface-variant);
}

.pill.plain::before {
  display: none;
}

/* Compact list */
.brief-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--outline-variant);
}

.brief-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 16px 4px;
  border-bottom: 1px solid var(--outline-variant);
}

.brief-item .brief-cat {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--primary);
}

.brief-item .brief-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 16px;
  color: var(--on-surface);
}

.brief-item .brief-title:hover {
  color: var(--primary);
  text-decoration: none;
}

.brief-item .brief-date {
  color: var(--on-surface-variant);
  font-size: 12.5px;
  white-space: nowrap;
}

/* ---------- Rail ---------- */
.rail {
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: sticky;
  top: 92px;
}

.rail-card {
  background: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.rail-head {
  padding: 16px 18px 0;
}

.rail-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.rail-note {
  margin-top: 2px;
  color: var(--on-surface-variant);
  font-size: 12px;
}

.rail-list {
  display: flex;
  flex-direction: column;
  padding: 6px;
}

.rail-item {
  display: flex;
  gap: 12px;
  padding: 11px 12px;
  border-radius: var(--radius-xs);
  color: var(--on-surface);
}

.rail-item:hover {
  background: var(--surface-2);
  text-decoration: none;
}

.rail-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--primary);
  padding-top: 2px;
}

.rail-item-title {
  display: block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 13.5px;
  line-height: 1.4;
}

.rail-item-meta {
  display: block;
  color: var(--on-surface-variant);
  font-size: 11.5px;
  margin-top: 2px;
}

.rail-link {
  display: block;
  padding: 4px 18px 14px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
}

.tracker {
  padding: 10px 18px 16px;
  display: grid;
  gap: 10px;
}

.tracker-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
}

.tracker-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--on-surface-variant);
}

.tracker-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
}

.tracker-dot.beta {
  background: var(--warning);
}

.tracker-dot.lts {
  background: var(--outline);
}

.tracker-value {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--on-surface);
}

.tracker-foot {
  padding: 0 18px 16px;
  color: var(--on-surface-variant);
  font-size: 11.5px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 18px 18px;
}

.tag {
  padding: 5px 11px;
  border-radius: var(--radius-full);
  border: 1px solid var(--outline-variant);
  color: var(--on-surface-variant);
  font-size: 12px;
}

.tag:hover {
  background: var(--surface-2);
  color: var(--on-surface);
  text-decoration: none;
}

/* ---------- Newsletter ---------- */
.newsletter {
  margin-top: 64px;
}

.newsletter-card {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
  padding: clamp(28px, 4vw, 44px);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #0b57d0 0%, #0842a0 55%, #062e6f 100%);
  color: #fff;
}

.newsletter-card::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(168, 199, 250, 0.45), transparent 68%);
}

.newsletter-card h2 {
  color: #fff;
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: -0.02em;
}

.newsletter-card p {
  margin-top: 8px;
  color: #d3e3fd;
  font-size: 14.5px;
  max-width: 46ch;
}

.newsletter-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.newsletter-form input[type="email"] {
  flex: 1;
  min-width: 200px;
  height: 48px;
  padding: 0 18px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-family: var(--font-body);
  font-size: 14.5px;
  outline: none;
}

.newsletter-form input[type="email"]::placeholder {
  color: rgba(255, 255, 255, 0.75);
}

.newsletter-form input[type="email"]:focus {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.18);
}

.newsletter-form .btn {
  background: #fff;
  color: #0b57d0;
}

.newsletter-consent {
  flex-basis: 100%;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 11.5px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.82);
}

.newsletter-consent input {
  margin-top: 3px;
  accent-color: #fff;
}

.newsletter-consent a {
  color: #fff;
  text-decoration: underline;
}

.newsletter-note {
  flex-basis: 100%;
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.7);
}

.newsletter-form.is-disabled input,
.newsletter-form.is-disabled .btn {
  opacity: 0.65;
  cursor: not-allowed;
}

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 72px;
  border-top: 1px solid var(--outline-variant);
  background: var(--surface-1);
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  justify-content: space-between;
  padding: 36px 0 28px;
}

.footer-brand {
  max-width: 340px;
}

.footer-brand .brand {
  margin-bottom: 10px;
}

.footer-brand p {
  color: var(--on-surface-variant);
  font-size: 13px;
}

.footer-cols {
  display: flex;
  flex-wrap: wrap;
  gap: 48px;
}

.footer-col h3 {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-bottom: 10px;
}

.footer-col a {
  display: block;
  color: var(--on-surface);
  font-size: 13.5px;
  padding: 4px 0;
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  padding: 18px 0 28px;
  border-top: 1px solid var(--outline-variant);
  color: var(--on-surface-variant);
  font-size: 12px;
}

/* ============================================================
   Post page
   ============================================================ */
.post-page {
  padding: 28px 0 80px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  color: var(--on-surface-variant);
  font-size: 12.5px;
}

.breadcrumb a {
  color: var(--on-surface-variant);
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb .crumb-sep {
  opacity: 0.45;
}

.post-head {
  max-width: 100%;
  margin-top: 20px;
}

.post-pills {
  margin-bottom: 14px;
}

.post-title {
  font-size: clamp(32px, 4.8vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.035em;
  font-weight: 700;
  overflow-wrap: break-word;
}

.post-dek {
  margin-top: 18px;
  font-size: clamp(16px, 1.7vw, 19px);
  color: var(--on-surface-variant);
  max-width: 100%;
}

.post-byline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--outline-variant);
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.byline-text {
  font-size: 13px;
  color: var(--on-surface-variant);
}

.byline-name {
  display: block;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--on-surface);
  font-size: 14px;
}

.updated-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--surface-2);
  color: var(--on-surface-variant);
  font-size: 11.5px;
}

.hero-image {
  margin: 32px 0 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--outline-variant);
}

.hero-image img {
  width: 100%;
  aspect-ratio: 1200 / 630;
  object-fit: cover;
}

.hero-image figcaption {
  padding: 10px 14px;
  font-size: 12px;
  color: var(--on-surface-variant);
  background: var(--surface-1);
}

.post-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  align-items: start;
  margin-top: 40px;
}

.post-layout.no-toc {
  grid-template-columns: minmax(0, 1fr);
}

.toc {
  position: sticky;
  top: 92px;
}

.toc-head {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-bottom: 10px;
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-left: 2px solid var(--outline-variant);
}

.toc-link {
  padding: 7px 12px;
  margin-left: -2px;
  border-left: 2px solid transparent;
  color: var(--on-surface-variant);
  font-size: 13px;
  line-height: 1.4;
}

.toc-link.is-sub {
  padding-left: 24px;
  font-size: 12.5px;
}

.toc-link:hover {
  color: var(--on-surface);
  text-decoration: none;
}

.toc-link.is-active {
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 500;
}

.toc-progress {
  margin-top: 18px;
  font-size: 11.5px;
  color: var(--on-surface-variant);
}

.article {
  display: flex;
  flex-direction: column;
  gap: 26px;
  width: 100%;
  min-width: 0;
  grid-column: 1 / -1;
}

.tldr {
  border-radius: var(--radius-md);
  border: 1px solid var(--outline-variant);
  background: linear-gradient(180deg, color-mix(in srgb, var(--primary-container) 55%, var(--surface)) 0%, var(--surface) 100%);
  padding: 22px 24px;
}

.tldr-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  color: var(--on-primary-container);
}

[data-theme="dark"] .tldr-head {
  color: var(--primary);
}

.tldr ul {
  margin: 12px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  color: var(--on-surface-variant);
  font-size: 14.5px;
}

.tldr li::marker {
  color: var(--primary);
}

/* ---------- Prose ---------- */
.prose {
  display: flex;
  flex-direction: column;
  gap: 20px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--on-surface-variant);
  min-width: 0;
}

@media (min-width: 1121px) {
  .prose {
    font-size: 18px;
  }
}

.prose > p {
  margin: 0;
}

.prose h2 {
  margin: 14px 0 0;
  font-size: clamp(24px, 3vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--on-surface);
  scroll-margin-top: 92px;
}

.prose h3 {
  margin: 6px 0 0;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--on-surface);
  scroll-margin-top: 92px;
}

.prose h4 {
  margin: 4px 0 0;
  font-size: 17px;
  color: var(--on-surface);
  scroll-margin-top: 92px;
}

.prose strong {
  color: var(--on-surface);
  font-weight: 600;
}

.prose a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose ul,
.prose ol {
  margin: 0;
  padding-left: 22px;
  display: grid;
  gap: 8px;
}

.prose li::marker {
  color: var(--primary);
}

.prose li > ul,
.prose li > ol {
  margin-top: 8px;
}

.prose blockquote {
  margin: 4px 0;
  padding: 14px 20px;
  border-left: 3px solid var(--primary);
  background: var(--surface-1);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--on-surface-variant);
  font-style: italic;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--on-surface);
  border: 1px solid var(--outline-variant);
  overflow-wrap: anywhere;
}

.prose pre {
  margin: 0;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--outline-variant);
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.6;
}

.prose pre code {
  padding: 0;
  border: 0;
  background: transparent;
  font-size: inherit;
  white-space: pre;
}

.prose img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--outline-variant);
}

.prose figure {
  margin: 0;
}

.prose figcaption {
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--on-surface-variant);
}

.prose hr {
  width: 100%;
  border: 0;
  border-top: 1px solid var(--outline-variant);
  margin: 8px 0;
}

.prose iframe,
.prose video {
  max-width: 100%;
  border-radius: var(--radius-sm);
}

.prose table {
  width: 100%;
  display: block;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 14px;
}

.prose th,
.prose td {
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--outline-variant);
  white-space: normal;
}

.prose th {
  font-family: var(--font-display);
  font-weight: 600;
  background: var(--surface-1);
  color: var(--on-surface);
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

.prose td {
  color: var(--on-surface-variant);
}

.prose .table-wrap {
  overflow-x: auto;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
}

.prose .table-wrap table {
  display: table;
  white-space: nowrap;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--outline-variant);
  background: var(--surface-1);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--on-surface);
}

.chip .chip-key {
  color: var(--on-surface-variant);
  font-family: var(--font-body);
}

.callout {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 12px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--outline-variant);
  font-size: 14px;
  line-height: 1.6;
  color: var(--on-surface-variant);
}

.callout strong {
  color: var(--on-surface);
}

.callout .callout-icon {
  color: var(--primary);
  margin-top: 2px;
}

.callout[data-type="warn"] {
  background: color-mix(in srgb, var(--warning) 12%, var(--surface));
  border-color: color-mix(in srgb, var(--warning) 35%, var(--outline-variant));
}

.callout[data-type="warn"] .callout-icon {
  color: var(--warning);
}

/* ---------- Verdict ---------- */
.verdict {
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
}

.verdict-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px 0;
}

.verdict-title {
  font-size: 18px;
}

.verdict-score {
  display: flex;
  align-items: center;
  gap: 12px;
}

.score-ring {
  --score: 9;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: conic-gradient(var(--primary) calc(var(--score) * 10%), var(--surface-3) 0);
  display: grid;
  place-items: center;
  position: relative;
}

.score-ring::before {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: var(--surface);
}

.score-ring span {
  position: relative;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--on-surface);
}

.score-caption {
  font-size: 12px;
  color: var(--on-surface-variant);
  line-height: 1.35;
}

.verdict-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 18px 24px 24px;
}

.verdict-col h4 {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-bottom: 10px;
}

.verdict-list {
  display: grid;
  gap: 9px;
}

.verdict-item {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--on-surface-variant);
}

.verdict-item svg {
  flex-shrink: 0;
  margin-top: 3px;
}

.verdict-item.good svg {
  color: var(--success);
}

.verdict-item.bad svg {
  color: var(--error);
}

/* ---------- Author ---------- */
.author-box {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--outline-variant);
  background: var(--surface-1);
}

.author-box img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
}

.author-box h3 {
  font-size: 16px;
}

.author-box .author-role {
  color: var(--on-surface-variant);
  font-size: 12.5px;
  margin-top: 2px;
}

.author-box p {
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--on-surface-variant);
}

.author-box .author-links {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
}

/* ---------- Related ---------- */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.related-card {
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface);
}

.related-card img {
  width: 100%;
  aspect-ratio: 1200 / 675;
  object-fit: cover;
}

.related-body {
  padding: 14px 16px 18px;
  display: grid;
  gap: 8px;
}

.related-body h3 {
  font-size: 15px;
  line-height: 1.35;
}

.related-body h3 a {
  color: var(--on-surface);
}

.related-body h3 a:hover {
  color: var(--primary);
  text-decoration: none;
}

.related-body .card-meta {
  padding-top: 0;
}

/* Post tags */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 4px;
}

.post-tags-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-right: 4px;
}

/* Inline mobile TOC */
.mobile-toc {
  display: none;
}

/* ---------- Static pages ---------- */
.page-shell {
  max-width: 820px;
}

.page-head {
  margin-bottom: 32px;
}

.page-title {
  margin-top: 16px;
  font-size: clamp(34px, 4.4vw, 52px);
  line-height: 1.06;
  letter-spacing: -0.035em;
}

.page-dek {
  margin-top: 12px;
  color: var(--on-surface-variant);
  font-size: 16px;
}

.page-shell .prose {
  font-size: 16.5px;
}

/* ---------- Archive / listing pages ---------- */
.archive-head {
  margin-bottom: 32px;
}

.archive-head .page-title {
  margin-top: 16px;
}

.category-grid {
  margin-top: 0;
}

.category-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}

.category-tile {
  display: grid;
  gap: 4px;
  padding: 18px 20px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--on-surface);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.category-tile:hover {
  box-shadow: var(--shadow-2);
  transform: translateY(-2px);
  text-decoration: none;
}

.category-tile-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
}

.category-tile-count {
  color: var(--primary);
  font-size: 13px;
}

.category-tile-latest {
  color: var(--on-surface-variant);
  font-size: 11.5px;
}

.tag-cloud-lg {
  padding: 0;
  gap: 10px;
  margin-top: 8px;
}

.tag-cloud-lg .tag {
  font-size: 13px;
  padding: 7px 14px;
}

.tag-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--on-surface-variant);
}

.archive-list {
  max-width: 900px;
}

.archive-year {
  margin: 32px 0 6px;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--on-surface);
}

.archive-year:first-child {
  margin-top: 0;
}

.archive-items {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--outline-variant);
}

.archive-item {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: baseline;
  padding: 13px 4px;
  border-bottom: 1px solid var(--outline-variant);
}

.archive-date {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--on-surface-variant);
}

.archive-link {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15px;
  color: var(--on-surface);
}

.archive-link:hover {
  color: var(--primary);
  text-decoration: none;
}

.archive-cat {
  font-size: 11.5px;
  color: var(--on-surface-variant);
  text-align: right;
}

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 40px;
}

.pagination-count {
  color: var(--on-surface-variant);
  font-size: 13px;
}

/* ---------- Responsive ---------- */
@media (max-width: 1120px) {
  .layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 28px;
  }

  .header-inner {
    gap: 14px;
  }

  .brand-logo {
    height: 31px;
    max-width: 172px;
  }

  .nav-link {
    padding: 8px;
    font-size: 13.5px;
  }

  .post-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .post-layout.no-toc {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 980px) {
  .nav {
    display: none;
  }

  .menu-btn {
    display: grid;
  }

  .layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .rail {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .rail-card:first-child {
    grid-column: 1 / -1;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-cover {
    order: -1;
  }

  .post-layout,
  .post-layout.no-toc {
    grid-template-columns: minmax(0, 1fr);
  }

  .article {
    max-width: 100%;
  }

  .toc {
    display: none;
  }

  .mobile-toc {
    display: block;
    margin-top: 4px;
  }

  .mobile-toc summary {
    list-style: none;
    cursor: pointer;
    padding: 12px 16px;
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 14px;
    background: var(--surface-1);
  }

  .mobile-toc summary::-webkit-details-marker {
    display: none;
  }

  .mobile-toc .toc-list {
    margin-top: 8px;
  }

  .newsletter-card {
    grid-template-columns: 1fr;
    gap: 22px;
  }
}

@media (max-width: 760px) {
  .grid {
    gap: 16px;
  }

  .card,
  .card.third {
    grid-column: span 12;
  }

  .brief-item {
    grid-template-columns: 1fr auto;
    gap: 6px 12px;
  }

  .brief-item .brief-cat {
    grid-column: 1 / -1;
  }

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

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

  .verdict-body {
    grid-template-columns: 1fr;
  }

  .footer-cols {
    gap: 28px;
  }

  .post-byline .updated-badge {
    margin-left: 0;
  }

  .archive-item {
    grid-template-columns: 60px minmax(0, 1fr);
  }

  .archive-cat {
    display: none;
  }

  .search-input-wrap kbd {
    display: none;
  }
}

@media (max-width: 520px) {
  .wrap {
    width: min(100% - 28px, var(--max));
  }

  .page {
    padding-top: 24px;
  }

  .hero {
    padding: 20px;
    border-radius: 22px;
  }

  .hero-title {
    font-size: 30px;
  }

  .brand-logo {
    height: 30px;
    max-width: min(150px, 40vw);
  }

  .header-inner {
    height: 60px;
    gap: 10px;
  }

  .nav-actions {
    gap: 2px;
  }

  .icon-btn {
    width: 40px;
    height: 40px;
  }

  .theme-switch {
    padding: 2px;
  }

  .theme-option {
    width: 30px;
    height: 30px;
  }

  .mobile-menu {
    inset-block-start: 60px;
  }

  .post-title {
    font-size: 30px;
  }

  .tldr {
    padding: 18px;
  }

  .verdict-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .author-box {
    flex-direction: column;
  }

  .newsletter-card {
    padding: 24px 20px;
    border-radius: 22px;
  }

  .newsletter-form input[type="email"] {
    min-width: 100%;
  }

  .newsletter-form .btn {
    width: 100%;
  }

  .search-overlay {
    padding: 70px 14px 20px;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }
}

@media (max-width: 380px) {
  .brand-logo {
    height: 26px;
    max-width: 118px;
  }

  .icon-btn {
    width: 36px;
    height: 36px;
  }

  .theme-option {
    width: 27px;
    height: 27px;
  }

  .theme-switch {
    gap: 0;
  }

  .header-inner {
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}