:root {
  --bg: #f4f6f8;
  --bg-top-left: rgba(120, 180, 195, 0.18);
  --bg-top-wash: rgba(255, 255, 255, 0.46);
  --bg-overlay: rgba(255, 255, 255, 0.18);
  --bg-panel: rgba(255, 255, 255, 0.58);
  --bg-panel-strong: rgba(255, 255, 255, 0.72);
  --panel-border: rgba(255, 255, 255, 0.56);
  --ink: #181816;
  --text-body: #3f3a34;
  --text-soft: #4d4740;
  --muted: #6c675f;
  --line: rgba(24, 24, 22, 0.1);
  --line-strong: rgba(24, 24, 22, 0.16);
  --line-soft: rgba(24, 24, 22, 0.08);
  --surface-hover: rgba(255, 255, 255, 0.42);
  --surface-hover-border: rgba(24, 24, 22, 0.14);
  --chip-bg: rgba(255, 255, 255, 0.34);
  --chip-border: rgba(24, 24, 22, 0.1);
  --accent-sage: #4fb6a6;
  --accent-blue: #5aa2ff;
  --accent-amber: #f2a25c;
  --accent-rose: #f28da1;
  --accent-slate: #8b98a5;
  --accent-olive: #5fbf8a;
  --meta-teal: #4fb6a6;
  --meta-sky: #5aa2ff;
  --meta-green: #5fbf8a;
  --meta-amber: #f2a25c;
  --meta-rose: #f28da1;
  --shadow: 0 18px 48px rgba(24, 20, 12, 0.05);
  --radius-lg: 24px;
  --radius-md: 18px;
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #14181c;
  --bg-top-left: rgba(110, 170, 190, 0.2);
  --bg-top-wash: rgba(255, 255, 255, 0.04);
  --bg-overlay: rgba(255, 255, 255, 0.03);
  --bg-panel: rgba(23, 27, 29, 0.72);
  --bg-panel-strong: rgba(30, 35, 38, 0.82);
  --panel-border: rgba(255, 255, 255, 0.08);
  --ink: #f0ece5;
  --text-body: #d8d1c7;
  --text-soft: #c3bcaf;
  --muted: #9b958a;
  --line: rgba(240, 236, 229, 0.1);
  --line-strong: rgba(240, 236, 229, 0.18);
  --line-soft: rgba(240, 236, 229, 0.08);
  --surface-hover: rgba(255, 255, 255, 0.05);
  --surface-hover-border: rgba(240, 236, 229, 0.16);
  --chip-bg: rgba(255, 255, 255, 0.04);
  --chip-border: rgba(240, 236, 229, 0.12);
  --shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
  --accent-sage: #68e0d2;
  --accent-blue: #79b7ff;
  --accent-amber: #f7bc86;
  --accent-rose: #f8adbd;
  --accent-slate: #9aabb8;
  --accent-olive: #78e3a8;
  --meta-teal: #68e0d2;
  --meta-sky: #79b7ff;
  --meta-green: #78e3a8;
  --meta-amber: #f7bc86;
  --meta-rose: #f8adbd;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: hidden;
  overflow-wrap: break-word;
  background:
    radial-gradient(circle at top left, var(--bg-top-left), transparent 0 36%),
    linear-gradient(180deg, var(--bg-top-wash), transparent 26%),
    var(--bg);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, var(--bg-overlay), transparent 24%);
  opacity: 0.8;
}

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

button,
input {
  font: inherit;
}

.page-shell {
  position: relative;
  padding: clamp(28px, 4vw, 60px) clamp(16px, 4vw, 64px) 88px;
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
}

.page-home .page-shell,
.detail-page .page-shell {
  padding-right: clamp(84px, 8vw, 116px);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--chip-border);
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--muted);
  backdrop-filter: blur(18px);
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--ink);
  background: var(--surface-hover);
  border-color: var(--surface-hover-border);
  transform: translateY(-1px);
  outline: none;
}

.theme-toggle {
  cursor: pointer;
}

.side-rail {
  position: fixed;
  top: 24px;
  right: 14px;
  bottom: 24px;
  z-index: 30;
  display: flex;
  align-items: center;
}

.side-rail-shell {
  --rail-progress: 0;
  --rail-collapsed-width: 54px;
  --rail-expanded-width: clamp(208px, 14vw, 240px);
  position: relative;
  display: grid;
  align-items: start;
  gap: 14px;
  width: var(--rail-collapsed-width);
  padding: 14px 10px;
  border: 1px solid color-mix(in srgb, var(--line-strong) 75%, transparent);
  border-radius: 30px;
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  box-shadow: 0 18px 42px rgba(24, 20, 12, 0.06);
  backdrop-filter: blur(18px);
  overflow: hidden;
  transition:
    width 180ms ease,
    gap 180ms ease,
    padding 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    box-shadow 180ms ease;
}

.side-rail-shell:hover,
.side-rail-shell:focus-within {
  gap: 18px;
  width: var(--rail-expanded-width);
  padding: 16px 10px;
}

.side-rail .theme-toggle {
  position: relative;
  justify-content: center;
  justify-self: end;
  align-self: start;
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 999px;
  margin: 0;
  transition:
    width 180ms ease,
    height 180ms ease,
    transform 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease;
}

.side-rail-shell:hover .theme-toggle,
.side-rail-shell:focus-within .theme-toggle {
  width: 42px;
  height: 42px;
}

.side-rail .theme-toggle [data-theme-label] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.rail-nav {
  position: relative;
  display: grid;
  gap: 8px;
  width: 100%;
}

.rail-nav::before,
.rail-nav::after {
  content: "";
  position: absolute;
  left: calc(50% - 0.5px);
  width: 1px;
  border-radius: 999px;
  pointer-events: none;
  transition: left 180ms ease;
}

.side-rail-shell:hover .rail-nav::before,
.side-rail-shell:hover .rail-nav::after,
.side-rail-shell:focus-within .rail-nav::before,
.side-rail-shell:focus-within .rail-nav::after {
  left: calc(17px - 0.5px);
}

.rail-nav::before {
  top: 13px;
  bottom: 13px;
  background: color-mix(in srgb, var(--line-strong) 76%, transparent);
}

.rail-nav::after {
  top: 13px;
  height: calc((100% - 26px) * var(--rail-progress, 0));
  background: color-mix(in srgb, var(--ink) 38%, transparent);
  box-shadow: none;
}

.rail-link {
  position: relative;
  display: grid;
  grid-template-columns: 10px 0fr;
  align-items: center;
  justify-content: center;
  gap: 0;
  width: 100%;
  padding: 8px 0;
  border: 1px solid transparent;
  border-radius: 16px;
  color: var(--muted);
  background: transparent;
  transition:
    grid-template-columns 180ms ease,
    gap 180ms ease,
    padding 180ms ease,
    transform 180ms ease,
    color 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease;
}

.side-rail-shell:hover .rail-link,
.side-rail-shell:focus-within .rail-link {
  grid-template-columns: 10px minmax(0, 1fr);
  justify-content: stretch;
  gap: 10px;
  padding: 8px 10px 8px 12px;
  background: color-mix(in srgb, var(--bg-panel) 42%, transparent);
}

.rail-dot {
  position: relative;
  z-index: 1;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--bg-panel-strong) 82%, transparent);
  transition:
    height 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.rail-link-text {
  position: static;
  transform: none;
  max-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  line-height: 1.5;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  transition:
    max-width 180ms ease,
    opacity 140ms ease,
    transform 180ms ease;
}

.side-rail-shell:hover .rail-link-text,
.side-rail-shell:focus-within .rail-link-text {
  max-width: 190px;
  opacity: 0.78;
}

.rail-link:hover,
.rail-link:focus-visible,
.rail-link.is-active {
  color: var(--ink);
  outline: none;
  border-color: var(--line-strong);
  background: var(--surface-hover);
}

.rail-link:hover,
.rail-link:focus-visible {
  transform: translateX(-2px);
}

.side-rail-shell:not(:hover):not(:focus-within) .rail-link,
.side-rail-shell:not(:hover):not(:focus-within) .rail-link:hover,
.side-rail-shell:not(:hover):not(:focus-within) .rail-link:focus-visible,
.side-rail-shell:not(:hover):not(:focus-within) .rail-link.is-active {
  transform: none;
  border-color: transparent;
  background: transparent;
}

.side-rail-shell:not(:hover):not(:focus-within) .rail-link .rail-link-text,
.side-rail-shell:not(:hover):not(:focus-within) .rail-link.is-active .rail-link-text {
  max-width: 0;
  opacity: 0;
}

.rail-link:hover .rail-dot,
.rail-link:focus-visible .rail-dot,
.rail-link.is-active .rail-dot {
  height: 28px;
  border-color: var(--line-strong);
  background: color-mix(in srgb, var(--ink) 72%, transparent);
  box-shadow: none;
}

.rail-link:hover .rail-link-text,
.rail-link:focus-visible .rail-link-text,
.rail-link.is-active .rail-link-text {
  opacity: 1;
}

@media (min-width: 761px) {
  .post-page .rail-link[data-generated-heading-link="true"] .rail-link-text {
    text-transform: none;
    font-size: 11px;
    letter-spacing: 0.03em;
  }

  .post-page .rail-nav {
    max-height: calc(100vh - 220px);
    overflow-y: auto;
    overscroll-behavior-y: contain;
    padding-right: 2px;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .post-page .rail-nav::-webkit-scrollbar {
    display: none;
  }

  .post-page .rail-link.rail-link-sub .rail-dot {
    width: 8px;
    height: 8px;
  }

  .post-page .side-rail-shell:hover .rail-link.rail-link-sub,
  .post-page .side-rail-shell:focus-within .rail-link.rail-link-sub {
    padding-left: 20px;
  }

  .post-page .rail-link.rail-link-sub .rail-link-text {
    letter-spacing: 0.1em;
    opacity: 0.68;
  }

  .post-page .side-rail-shell:hover .rail-link .rail-link-text,
  .post-page .side-rail-shell:focus-within .rail-link .rail-link-text {
    max-width: 172px;
  }
}

@media (max-width: 760px) {
  .post-page .rail-link[data-generated-heading-link="true"] {
    display: none;
  }
}

.side-rail-shell:hover .rail-link.is-active .rail-link-text,
.side-rail-shell:focus-within .rail-link.is-active .rail-link-text,
.side-rail-shell:hover .rail-link:hover .rail-link-text,
.side-rail-shell:hover .rail-link:focus-visible .rail-link-text,
.side-rail-shell:focus-within .rail-link:hover .rail-link-text,
.side-rail-shell:focus-within .rail-link:focus-visible .rail-link-text {
  max-width: 96px;
}

.post-page .side-rail-shell:hover .rail-link.is-active .rail-link-text,
.post-page .side-rail-shell:focus-within .rail-link.is-active .rail-link-text,
.post-page .side-rail-shell:hover .rail-link:hover .rail-link-text,
.post-page .side-rail-shell:hover .rail-link:focus-visible .rail-link-text,
.post-page .side-rail-shell:focus-within .rail-link:hover .rail-link-text,
.post-page .side-rail-shell:focus-within .rail-link:focus-visible .rail-link-text {
  max-width: 172px;
}

.side-rail-shell:not(:hover):not(:focus-within) .rail-link .rail-dot {
  box-shadow: none;
}

.side-rail-shell:not(:hover):not(:focus-within) .rail-link.is-active .rail-dot {
  height: 32px;
  border-color: var(--line-strong);
  background: color-mix(in srgb, var(--ink) 72%, transparent);
  box-shadow: none;
}

.theme-toggle::before {
  content: "";
  width: 14px;
  height: 1.5px;
  border-radius: 999px;
  background: currentColor;
  box-shadow: none;
}

.hero,
.detail-hero {
  display: grid;
  gap: 18px;
  max-width: 980px;
}

.page-home .hero {
  max-width: none;
}

.home-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  grid-template-areas:
    "hero board"
    "main main";
  gap: 24px;
  align-items: start;
}

.page-home .hero {
  grid-area: hero;
}

.page-home .hero-board {
  grid-area: board;
}

.page-home main {
  grid-area: main;
}

.hero-copy {
  display: grid;
  gap: 18px;
  min-width: 0;
  max-width: 760px;
}

.eyebrow,
.meta-label,
.section-index,
.section-count,
.chip,
.detail-label,
.breadcrumbs,
.detail-row dt,
.related-label,
.card-kicker,
.footer-note {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow,
.meta-label,
.section-index,
.section-count,
.detail-label,
.breadcrumbs,
.detail-row dt,
.related-label,
.card-kicker,
.footer-note {
  color: var(--muted);
}

.hero-title,
.detail-title {
  margin: 0;
  font-weight: 640;
  letter-spacing: -0.055em;
  line-height: 0.94;
}

.hero-title {
  font-size: clamp(36px, 10vw, 116px);
}

.detail-title {
  font-size: clamp(30px, 7vw, 92px);
}

.hero-summary,
.detail-summary {
  margin: 0;
  max-width: 760px;
  font-size: clamp(19px, 2.3vw, 28px);
  line-height: 1.55;
  color: var(--text-body);
}

.detail-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  padding: 6px 12px 6px 6px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg-panel-strong) 82%, transparent);
}

.detail-brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 7px;
  border: 1px solid var(--chip-border);
  border-radius: 999px;
  background: var(--chip-bg);
}

.detail-brand-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.detail-brand-name {
  margin: 0;
  color: var(--text-body);
  font-size: 14px;
  font-weight: 560;
  letter-spacing: -0.01em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--bg-panel-strong);
  color: var(--text-body);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

.hero-action:hover,
.hero-action:focus-visible {
  transform: translateY(-1px);
  color: var(--ink);
  background: var(--surface-hover);
  border-color: var(--surface-hover-border);
  outline: none;
}

.hero-action-primary {
  border-color: color-mix(in srgb, var(--accent-blue) 28%, var(--line-strong));
  background:
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--accent-blue) 14%, transparent),
      color-mix(in srgb, var(--bg-panel-strong) 84%, transparent)
    );
  color: var(--ink);
}

.hero-action-icon,
.meta-symbol,
.signal-card-mark,
.lane-title-icon,
.item-icon,
.item-link-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.hero-action-icon {
  width: 18px;
  height: 18px;
}

.hero-action-icon svg,
.meta-symbol svg,
.signal-card-mark svg,
.lane-title-icon svg,
.item-icon svg,
.item-link-mark svg {
  display: block;
  width: 100%;
  height: auto;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.meta-row > span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--bg-panel-strong) 82%, transparent);
  box-shadow: inset 0 1px 0 color-mix(in srgb, white 50%, transparent);
}

html[data-theme="dark"] .meta-row > span {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.meta-symbol {
  width: 28px;
  height: 28px;
  padding: 6px;
  border: 1px solid var(--chip-border);
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--ink);
}

.meta-copy {
  min-width: 0;
}

.glass-panel,
.card {
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  background: var(--bg-panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.glass-panel {
  padding: 20px 22px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: baseline;
}

.panel-head .eyebrow,
.card p,
.detail-row dd,
.related-links a {
  color: var(--text-soft);
  line-height: 1.6;
}

.explorer {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.explorer-lanes {
  gap: 18px;
  margin-top: 8px;
}

.lane-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-items: start;
}

.lane-half {
  width: 100%;
}

.lane-column {
  display: grid;
  grid-template-rows: auto auto;
  gap: 12px;
}

.lane-column > .lane {
  height: auto;
}

.lane-row .lane-compact {
  width: 100%;
  max-width: none;
}

.lane-leadership .lane-grid {
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 12px;
}

.lane-leadership .lane-group {
  height: 100%;
  display: grid;
  align-content: start;
}

.lane-leadership .lane-group:last-child {
  padding: 12px 14px;
}

.lane-leadership .lane-group:last-child .item-row {
  border-top: 0;
  padding-top: 6px;
}

.lane-cta {
  text-decoration: none;
}

.lane-cta-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
}

.lane-cta-icon {
  width: 40px;
  height: 40px;
  padding: 9px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--lane-accent) 22%, var(--chip-border));
  background: color-mix(in srgb, var(--lane-accent) 12%, var(--chip-bg));
  color: color-mix(in srgb, var(--lane-accent) 78%, var(--ink));
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.lane-cta-copy {
  display: grid;
  gap: 6px;
}

.lane-cta-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.lane-cta-title {
  margin: 0;
  font-size: 18px;
  font-weight: 560;
  letter-spacing: -0.03em;
}

.lane-cta-arrow {
  width: 28px;
  height: 28px;
  padding: 6px;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition:
    transform 180ms ease,
    color 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.lane-cta:hover .lane-cta-arrow,
.lane-cta:focus-visible .lane-cta-arrow {
  transform: translateX(2px);
  color: var(--ink);
  border-color: var(--surface-hover-border);
  background: var(--surface-hover);
}

.hero-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-areas:
    "writing featured";
  gap: 12px;
  align-self: start;
  min-width: 0;
}

.signal-card {
  --signal-accent: var(--accent-blue);
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 0;
  padding: 18px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(
      155deg,
      color-mix(in srgb, var(--signal-accent) 18%, var(--bg-panel-strong)) 0%,
      color-mix(in srgb, var(--bg-panel-strong) 88%, transparent) 38%,
      color-mix(in srgb, var(--bg-panel) 96%, transparent) 100%
    );
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.signal-card-mark {
  width: 38px;
  height: 38px;
  padding: 8px;
  border: 1px solid color-mix(in srgb, var(--signal-accent) 22%, var(--chip-border));
  border-radius: 12px;
  background: color-mix(in srgb, var(--signal-accent) 12%, var(--chip-bg));
  color: color-mix(in srgb, var(--signal-accent) 78%, var(--ink));
}

.signal-card-writing {
  --signal-accent: var(--accent-amber);
  grid-area: writing;
}

.signal-card-featured {
  --signal-accent: var(--accent-sage);
  grid-area: featured;
}


.hero-board .signal-card h2 {
  font-size: clamp(19px, 2vw, 28px);
}

.signal-card-link {
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.signal-card-link:hover,
.signal-card-link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--surface-hover-border);
  background: var(--surface-hover);
  outline: none;
}

.signal-card h2 {
  margin: 0;
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 560;
  letter-spacing: -0.04em;
  line-height: 1.04;
}

.signal-card p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.55;
}

.signal-card-details {
  display: grid;
  gap: 8px;
  margin-top: auto;
  padding-top: 2px;
}

.signal-card-status .signal-card-details {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
}

.signal-card-detail {
  display: grid;
  gap: 3px;
  margin: 0;
  color: var(--text-soft);
  line-height: 1.55;
}

.signal-card-detail-label {
  display: inline-block;
  margin-right: 10px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.signal-card-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.signal-card-points span {
  display: inline-flex;
  align-items: center;
  padding: 5px 9px;
  border: 1px solid color-mix(in srgb, var(--signal-accent) 20%, var(--chip-border));
  border-radius: 999px;
  background: color-mix(in srgb, var(--signal-accent) 10%, var(--chip-bg));
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.lane {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--lane-accent) 18%, transparent) 0%,
      color-mix(in srgb, var(--lane-accent) 8%, transparent) 48%,
      transparent 100%
    ),
    var(--bg-panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  animation: reveal 0.72s ease both;
  animation-delay: calc(var(--stagger, 0) * 70ms);
}

.lane[data-collapsed="true"] .lane-grid {
  display: none;
}

.lane[data-collapsed="true"] {
  gap: 10px;
}

.lane-compact {
  padding: 12px 14px;
  gap: 10px;
  width: min(100%, 640px);
  max-width: 640px;
}

.lane-compact .lane-head {
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
}

.lane-compact .lane-title-row {
  gap: 12px;
}

.lane-compact .lane-title-icon {
  width: 34px;
  height: 34px;
  padding: 6px;
  border-radius: 10px;
}

.lane-compact .lane-grid {
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.lane-group-compact {
  padding: 0;
  border: 0;
  background: transparent;
}

.lane-group-compact .group-items {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
}

.lane-compact .item-row {
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  padding: 8px 10px;
  border-top: 0;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: color-mix(in srgb, var(--bg-panel-strong) 78%, transparent);
}

.lane-compact .item-top {
  align-items: center;
}

.lane-compact .item-meta {
  display: none;
}

.lane-compact .item-icon {
  width: 34px;
  height: 34px;
  padding: 7px;
  border-radius: 12px;
}

.lane-compact .item-title {
  font-size: 16px;
}

.lane-compact .item-subtitle {
  font-size: 13px;
  color: var(--muted);
}

.lane-compact .item-row.is-link:hover,
.lane-compact .item-row.is-link:focus-visible {
  padding-left: 12px;
  background: var(--surface-hover);
  border-color: var(--surface-hover-border);
  transform: translateY(-1px);
}

.lane-compact .item-row.is-link:hover .item-link-mark,
.lane-compact .item-row.is-link:focus-visible .item-link-mark {
  transform: translateX(2px);
}

.lane-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: end;
}

.lane-toggle {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  justify-items: end;
  gap: 12px;
  width: 100%;
  max-width: 360px;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: right;
  cursor: pointer;
}

.lane-toggle:hover .lane-highlight,
.lane-toggle:focus-visible .lane-highlight {
  color: var(--ink);
}

.lane-toggle:focus-visible {
  outline: none;
}

.lane-copy {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.lane-title-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lane-title-icon {
  width: clamp(36px, 4vw, 44px);
  height: clamp(36px, 4vw, 44px);
  padding: 8px;
  border: 1px solid color-mix(in srgb, var(--lane-accent) 22%, var(--chip-border));
  border-radius: 12px;
  background: color-mix(in srgb, var(--lane-accent) 12%, var(--chip-bg));
  color: color-mix(in srgb, var(--lane-accent) 78%, var(--ink));
}

.lane-title {
  margin: 0;
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 560;
  letter-spacing: -0.045em;
}

.lane-summary,
.lane-group-note {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.65;
}

.lane-highlight {
  max-width: 320px;
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.5;
  text-align: right;
}

.lane-toggle[aria-expanded="true"] .chevron {
  transform: rotate(225deg);
}

.lane-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

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

.lane-group {
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--bg-panel-strong) 76%, transparent);
}

.lane-group-head {
  display: grid;
  gap: 6px;
  padding-bottom: 10px;
}

.lane-group-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.lane-group-title {
  margin: 0;
  font-size: clamp(21px, 2.5vw, 28px);
  font-weight: 560;
  letter-spacing: -0.03em;
}

.lane-group-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.lane-group-tag {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--chip-border);
  background: var(--chip-bg);
  color: var(--text-soft);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section {
  position: relative;
  padding: 14px 22px 16px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(
      90deg,
      color-mix(in srgb, var(--section-accent) 22%, transparent) 0%,
      color-mix(in srgb, var(--section-accent) 10%, transparent) 46%,
      transparent 82%
    ),
    var(--bg-panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  overflow: hidden;
  animation: reveal 0.72s ease both;
  animation-delay: calc(var(--stagger, 0) * 70ms);
  container-type: inline-size;
}

/* Container-query-driven section header reflow */
@container (max-width: 700px) {
  .section-header {
    grid-template-columns: 8px minmax(0, 1fr) auto;
    gap: 10px;
  }

  .section-index {
    display: none;
  }

  .section-count {
    grid-column: 2 / -1;
    font-size: 10px;
    margin-top: -4px;
    padding-bottom: 2px;
  }

  .section-body {
    padding-left: 0;
  }
}

@container (max-width: 420px) {
  .section-header {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
  }

  .section-accent {
    display: none;
  }

  .section-count {
    grid-column: 1 / -1;
  }

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

.section-header,
.group-header {
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.section-header {
  display: grid;
  grid-template-columns: 8px minmax(52px, 70px) minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 18px;
  padding: 10px 0 14px;
  min-width: 0;
}

.section-accent {
  width: 4px;
  height: 44px;
  border-radius: 999px;
  background: var(--section-accent, var(--accent-blue));
}

.section-copy {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.section-title {
  margin: 0;
  font-size: clamp(20px, 3vw, 35px);
  font-weight: 560;
  letter-spacing: -0.04em;
  overflow-wrap: break-word;
  word-break: break-word;
}

.section-subtitle,
.group-subtitle,
.item-subtitle {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.group-preview {
  margin: 0;
  color: var(--text-soft);
  font-size: 13px;
}

.group-header[aria-expanded="true"] .group-preview {
  display: none;
}

.section-body {
  display: grid;
  gap: 12px;
  padding: 2px 0 6px 78px;
}

.group {
  border-top: 1px solid var(--line-soft);
}

.group-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 16px 0 14px;
}

.group-copy {
  display: grid;
  gap: 4px;
}

.group-title,
.item-title {
  margin: 0;
  letter-spacing: -0.02em;
}

.group-title {
  font-size: 16px;
  font-weight: 530;
}

.item-detail-list {
  display: grid;
  gap: 4px;
  margin-top: 2px;
}

.item-detail {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.55;
}

.item-detail-label {
  margin-right: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.group-items {
  display: grid;
}

.item-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 14px 0;
  border-top: 1px solid var(--line-soft);
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    padding-left 180ms ease;
}

.item-row.is-link:hover,
.item-row.is-link:focus-visible {
  padding-left: 10px;
  background: var(--surface-hover);
  border-color: var(--surface-hover-border);
  outline: none;
}

.item-main {
  min-width: 0;
  display: grid;
  gap: 6px;
  overflow-wrap: break-word;
}

.item-row.has-timeline .item-main {
  display: grid;
  gap: 10px;
  min-height: 0;
}

.item-top {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
}

.item-top.no-icon {
  grid-template-columns: minmax(0, 1fr) auto;
}

.item-icon {
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid color-mix(in srgb, var(--lane-accent) 16%, var(--chip-border));
  border-radius: 14px;
  background: color-mix(in srgb, var(--lane-accent) 10%, var(--chip-bg));
  color: color-mix(in srgb, var(--lane-accent) 76%, var(--ink));
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.item-icon.is-logo {
  padding: 6px;
  border: 1.5px solid var(--line-strong);
  background: var(--chip-bg);
}

.item-logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.item-heading {
  display: flex;
  align-items: center;
  min-height: 42px;
  gap: 6px;
  min-width: 0;
}

.lane-compact .item-heading {
  min-height: 34px;
}

.item-top.no-icon .item-heading {
  min-height: 0;
}

.item-main > .item-subtitle {
  max-width: none;
}

.item-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
}

.item-title {
  font-size: 17px;
  font-weight: 520;
}

.item-toggle {
  width: 28px;
  height: 28px;
  padding: 0;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  background: var(--chip-bg);
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition:
    transform 180ms ease,
    color 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.item-toggle:hover,
.item-toggle:focus-visible {
  transform: translateY(-1px);
  color: var(--ink);
  border-color: var(--surface-hover-border);
  background: var(--surface-hover);
  outline: none;
}

.item-toggle[aria-expanded="true"] .chevron {
  transform: rotate(225deg);
}

.item-extra {
  display: grid;
  gap: 10px;
}

.item-extra[hidden] {
  display: none;
}

.item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.item-tag {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--chip-border);
  background: var(--chip-bg);
  color: var(--text-soft);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.item-timeline {
  position: relative;
  display: grid;
  gap: 12px;
  margin-top: 6px;
  padding-left: 14px;
}

.item-row.has-timeline .item-timeline {
  display: grid;
  gap: 10px;
}

.item-timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--lane-accent) 30%, transparent);
}

.timeline-step {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.timeline-dot {
  width: 12px;
  height: 12px;
  margin-top: 3px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--lane-accent) 70%, var(--chip-bg));
  box-shadow:
    0 0 0 4px color-mix(in srgb, var(--lane-accent) 14%, transparent),
    0 0 0 1px color-mix(in srgb, var(--lane-accent) 40%, transparent);
}

.timeline-copy {
  display: grid;
  gap: 4px;
}

.timeline-title {
  margin: 0;
  font-size: 14px;
  font-weight: 560;
  color: var(--text-body);
}

.timeline-label {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.item-awards {
  display: grid;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line-soft);
}

.item-awards-title {
  margin: 0;
  font-size: 14px;
  font-weight: 560;
  letter-spacing: -0.01em;
}

.item-awards-meta {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.item-awards-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.item-awards-list li {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--chip-border);
  background: var(--chip-bg);
  color: var(--text-soft);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.item-link-mark {
  width: 30px;
  height: 30px;
  padding: 7px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--muted);
  transition:
    transform 180ms ease,
    color 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.item-row.is-link:hover .item-icon,
.item-row.is-link:focus-visible .item-icon {
  transform: translateY(-1px);
  border-color: var(--surface-hover-border);
  background: var(--surface-hover);
}

.item-row.is-link:hover .item-link-mark,
.item-row.is-link:focus-visible .item-link-mark {
  transform: translateX(2px);
  color: var(--ink);
  border-color: var(--surface-hover-border);
  background: var(--surface-hover);
}

.item-meta {
  display: none;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border: 1px solid var(--chip-border);
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--muted);
}

.chevron,
.group-chevron {
  width: 10px;
  height: 10px;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transition: transform 180ms ease;
}

.chevron {
  transform: rotate(45deg);
}

.group-chevron {
  transform: rotate(45deg) scale(0.9);
}

.section-header[aria-expanded="true"] .chevron,
.group-header[aria-expanded="true"] .group-chevron {
  transform: rotate(225deg);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 28px;
}

.breadcrumbs a {
  transition: color 180ms ease;
}

.breadcrumbs a:hover,
.breadcrumbs a:focus-visible {
  color: var(--ink);
  outline: none;
}

.detail-page .page-shell {
  padding-top: clamp(28px, 4vw, 54px);
}

.detail-main {
  margin-top: 26px;
}

.detail-rows {
  margin: 30px 0 0;
}

.detail-row {
  display: grid;
  grid-template-columns: minmax(140px, 180px) minmax(0, 1fr);
  gap: 24px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.detail-row:last-child {
  border-bottom: 1px solid var(--line);
}

.detail-row dd {
  margin: 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.card {
  min-height: 190px;
  padding: 18px;
}

.card h2,
.related-block h2 {
  margin: 10px 0 8px;
  font-size: 20px;
  font-weight: 560;
  letter-spacing: -0.03em;
}

.related-block {
  margin-top: 24px;
  padding: 18px 22px;
}

.internship-resource-panel {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.internship-resource-panel h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 560;
  letter-spacing: -0.03em;
}

.resource-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.resource-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 9px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--bg-panel-strong);
  color: var(--text-body);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

.resource-link:hover,
.resource-link:focus-visible {
  transform: translateY(-1px);
  color: var(--ink);
  background: var(--surface-hover);
  border-color: var(--surface-hover-border);
  outline: none;
}

.internship-resource-note {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.6;
}

.resource-embed {
  width: 100%;
  min-height: clamp(520px, 78vh, 980px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--bg-panel-strong);
}

.resource-doc-grid {
  display: grid;
  gap: 14px;
}

.resource-doc {
  display: grid;
  gap: 10px;
}

.resource-doc-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.resource-doc-title {
  margin: 0;
  font-size: 16px;
  font-weight: 540;
  letter-spacing: -0.01em;
}

.resource-doc-open {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-soft);
  transition: color 180ms ease, border-color 180ms ease;
}

.resource-doc-open:hover,
.resource-doc-open:focus-visible {
  color: var(--ink);
  border-color: var(--line-strong);
  outline: none;
}

.resource-doc .resource-embed {
  min-height: clamp(500px, 72vh, 920px);
}

.related-links {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.related-links a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.writing-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.72fr);
  gap: 20px;
  margin-top: 28px;
  align-items: start;
}

.archive-column {
  display: grid;
  gap: 24px;
}

.archive-group {
  padding-top: 6px;
  border-top: 1px solid var(--line);
}

.archive-group-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  padding: 10px 0 8px;
}

.archive-group-head .eyebrow,
.archive-group-note,
.archive-meta,
.post-list,
.post-note p,
.archive-sidebar p,
.archive-links a,
.archive-summary {
  margin: 0;
}

.archive-group-title,
.archive-title,
.post-section h2 {
  margin: 0;
  font-weight: 560;
  letter-spacing: -0.03em;
}

.archive-group-title {
  font-size: clamp(24px, 2.6vw, 32px);
}

.archive-group-note,
.archive-meta,
.post-list,
.post-note p,
.archive-sidebar p,
.archive-links a,
.archive-summary,
.post-article p {
  color: var(--text-soft);
}

.archive-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    padding-left 180ms ease;
}

.archive-row:hover,
.archive-row:focus-visible {
  padding-left: 10px;
  background: var(--surface-hover);
  border-color: var(--surface-hover-border);
  outline: none;
}

.archive-main {
  display: grid;
  gap: 8px;
  min-width: 0;
  overflow-wrap: break-word;
}

.archive-meta,
.post-meta-row {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.archive-title {
  font-size: clamp(21px, 2.5vw, 29px);
}

.archive-summary {
  line-height: 1.65;
}

.archive-sidebar {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 24px;
}

.archive-links {
  display: grid;
  gap: 12px;
}

.archive-links a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.post-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  margin-top: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.post-meta-row span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.post-article {
  max-width: 860px;
  margin-top: 30px;
}

.post-article p {
  margin: 0 0 18px;
  font-size: 18px;
  line-height: 1.85;
}

.post-section {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
}

.post-section h2 {
  margin-bottom: 14px;
  font-size: clamp(24px, 2.6vw, 32px);
}

.post-note {
  margin-top: 26px;
}

.post-list {
  padding-left: 20px;
  line-height: 1.8;
}

.post-list li {
  margin-bottom: 12px;
}

.md-article > :first-child {
  margin-top: 0;
}

.md-loading {
  color: var(--muted);
}

.md-article h1,
.md-article h2,
.md-article h3,
.md-article h4 {
  margin: 34px 0 14px;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--ink);
}

.md-article h2,
.md-article h3,
.md-article h4 {
  padding: 8px 0 8px 12px;
  border-left: 2px solid transparent;
  border-radius: 8px;
}

.md-article h1 {
  font-size: clamp(32px, 4vw, 48px);
}

.md-article h2 {
  font-size: clamp(26px, 3vw, 34px);
  color: color-mix(in srgb, var(--ink) 88%, var(--meta-sky));
  border-left-color: color-mix(in srgb, var(--meta-sky) 44%, var(--line-soft));
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--meta-sky) 10%, transparent),
    transparent 68%
  );
}

.md-article h3 {
  font-size: clamp(22px, 2.5vw, 28px);
  color: color-mix(in srgb, var(--ink) 90%, var(--meta-teal));
  border-left-color: color-mix(in srgb, var(--meta-teal) 36%, var(--line-soft));
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--meta-teal) 8%, transparent),
    transparent 68%
  );
}

.md-article h4 {
  font-size: clamp(19px, 2.2vw, 24px);
  color: color-mix(in srgb, var(--ink) 92%, var(--meta-amber));
  border-left-color: color-mix(in srgb, var(--meta-amber) 32%, var(--line-soft));
  background: linear-gradient(
    90deg,
    color-mix(in srgb, var(--meta-amber) 7%, transparent),
    transparent 68%
  );
}

.md-article ul,
.md-article ol {
  margin: 0 0 20px;
  padding-left: 24px;
  color: var(--text-soft);
  line-height: 1.82;
}

.md-article li {
  margin-bottom: 10px;
}

.md-article blockquote {
  margin: 26px 0;
  padding: 14px 16px 14px 18px;
  border-left: 3px solid var(--line-strong);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: color-mix(in srgb, var(--bg-panel) 74%, transparent);
}

.md-article blockquote p:last-child {
  margin-bottom: 0;
}

.md-article hr {
  border: 0;
  border-top: 1px solid var(--line-soft);
  margin: 34px 0;
}

.md-article a {
  color: color-mix(in srgb, var(--meta-sky) 78%, var(--ink));
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--meta-sky) 44%, transparent);
  text-underline-offset: 3px;
}

.md-article a:hover,
.md-article a:focus-visible {
  color: var(--ink);
  text-decoration-color: var(--line-strong);
  outline: none;
}

.md-article code {
  font-family: var(--mono);
  font-size: 0.92em;
  padding: 0.12em 0.38em;
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  background: var(--chip-bg);
  color: color-mix(in srgb, var(--ink) 90%, var(--meta-sky));
}

.md-article pre {
  margin: 0 0 22px;
  padding: 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--bg-panel-strong) 82%, transparent);
  overflow-x: auto;
}

.md-article pre code {
  display: block;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text-body);
  line-height: 1.65;
}

.md-article img {
  display: block;
  width: auto;
  max-width: min(100%, 760px);
  max-height: clamp(240px, 58vh, 560px);
  height: auto;
  margin: 26px auto;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  object-fit: contain;
}

.md-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 22px;
}

.md-article th,
.md-article td {
  padding: 10px 12px;
  border: 1px solid var(--line-soft);
  text-align: left;
}

.md-article th {
  color: var(--ink);
  background: color-mix(in srgb, var(--bg-panel) 80%, transparent);
}

.footer-note {
  margin-top: 34px;
}

.floating-action {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 20;
  padding: 10px 16px;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  background: var(--bg-panel-strong);
  color: var(--text-body);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

.floating-action:hover,
.floating-action:focus-visible {
  transform: translateY(-2px);
  border-color: var(--surface-hover-border);
  background: var(--surface-hover);
  color: var(--ink);
  outline: none;
}

.floating-action.is-hidden {
  display: none;
}

.is-hidden {
  display: none !important;
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .lane,
  .section {
    animation: none;
  }
}

@supports not (background: color-mix(in srgb, white 50%, black)) {
  .side-rail-shell,
  .glass-panel,
  .card,
  .signal-card,
  .lane,
  .lane-group,
  .section,
  .meta-row > span,
  .chip,
  .signal-card-points span,
  .floating-action,
  .hero-action {
    border-color: var(--line-strong);
    background: var(--bg-panel-strong);
  }

  .meta-symbol,
  .signal-card-mark,
  .lane-title-icon,
  .item-icon,
  .item-link-mark {
    border-color: var(--line-strong);
    background: var(--chip-bg);
    color: var(--ink);
    box-shadow: none;
  }

  .hero-action-primary,
  .rail-link:hover,
  .rail-link:focus-visible,
  .rail-link.is-active,
  .signal-card-link:hover,
  .signal-card-link:focus-visible,
  .item-row.is-link:hover,
  .item-row.is-link:focus-visible,
  .archive-row:hover,
  .archive-row:focus-visible,
  .floating-action:hover,
  .floating-action:focus-visible {
    border-color: var(--line-strong);
    background: var(--surface-hover);
  }

  .rail-nav::before {
    background: var(--line-strong);
  }

  .rail-nav::after {
    background: var(--line-strong);
    box-shadow: none;
  }

  .rail-link {
    background: transparent;
    border-color: transparent;
  }

  .side-rail-shell:hover .rail-link,
  .side-rail-shell:focus-within .rail-link,
  .rail-link:hover,
  .rail-link:focus-visible,
  .rail-link.is-active {
    background: var(--bg-panel);
    border-color: var(--line-strong);
  }

  .rail-dot {
    background: var(--bg-panel);
    border-color: var(--line-strong);
  }
}

@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .theme-toggle,
  .side-rail-shell,
  .glass-panel,
  .card,
  .signal-card,
  .lane,
  .section,
  .floating-action,
  .hero-action {
    background: var(--bg-panel-strong);
  }
}

@media (max-width: 1024px) {
  .home-layout {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "hero"
      "board"
      "main";
  }

  .hero-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-areas:
      "writing featured";
  }

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

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

  .lane-column {
    grid-template-rows: auto;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .archive-sidebar {
    position: static;
  }

  .group-header,
  .item-row,
  .detail-row,
  .archive-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .item-meta {
    justify-content: flex-start;
  }

  .chip-line {
    text-align: left;
  }

  .section-body {
    padding-left: 24px;
  }
}

@media (max-width: 760px) {
  .page-shell {
    padding-left: clamp(12px, 3vw, 20px);
    padding-right: clamp(12px, 3vw, 20px);
  }

  .page-home .page-shell,
  .detail-page .page-shell {
    padding-right: clamp(12px, 3vw, 20px);
    padding-bottom: 118px;
  }

  .side-rail {
    top: auto;
    right: auto;
    left: 50%;
    bottom: 14px;
    transform: translateX(-50%);
    width: min(calc(100% - 20px), 620px);
  }

  .side-rail-shell {
    width: 100%;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 24px;
  }

  .rail-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
    -ms-overflow-style: none;
    scroll-snap-type: x proximity;
  }

  .rail-nav::-webkit-scrollbar {
    display: none;
  }

  .rail-nav::before,
  .rail-nav::after {
    display: none;
  }

  .rail-link {
    grid-template-columns: 10px minmax(0, 1fr);
    flex: 0 0 auto;
    min-width: max-content;
    justify-content: stretch;
    gap: 8px;
    padding: 8px 12px;
    background: color-mix(in srgb, var(--bg-panel) 42%, transparent);
    scroll-snap-align: start;
  }

  .rail-link:hover,
  .rail-link:focus-visible {
    transform: translateY(-1px);
  }

  .rail-link-text {
    max-width: none;
    font-size: 10px;
    letter-spacing: 0.12em;
    text-align: center;
    white-space: nowrap;
    opacity: 1;
    overflow: visible;
  }

  .hero-board {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "writing"
      "featured";
  }

  .lane {
    padding: 18px 16px;
  }

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

  .lane-column {
    grid-template-rows: auto;
  }

  .lane-head {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
  }

  .lane-toggle {
    justify-items: start;
    max-width: none;
    text-align: left;
  }

  .lane-highlight {
    max-width: none;
    text-align: left;
  }

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

  .panel-head,
  .group-header,
  .item-row,
  .detail-row,
  .archive-row,
  .writing-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .panel-head {
    display: grid;
  }

  .group-header,
  .item-row {
    gap: 12px;
  }

  .chevron,
  .group-chevron {
    order: -1;
  }

  .section {
    padding: 12px 14px 14px;
  }

  .item-meta {
    justify-content: flex-start;
  }

  .detail-row,
  .archive-group-head,
  .post-meta-row {
    gap: 10px;
  }

  .meta-row {
    gap: 8px 12px;
  }

  .meta-row > span {
    font-size: 13px;
    padding: 5px 10px;
  }

  .archive-group-head {
    flex-wrap: wrap;
  }

  .floating-action {
    right: 16px;
    bottom: 16px;
    font-size: 13px;
    padding: 8px 14px;
  }

  .resource-embed {
    min-height: 620px;
  }

  .resource-doc .resource-embed {
    min-height: 580px;
  }
}

@media (max-width: 560px) {
  .rail-link {
    width: auto;
    padding: 8px 10px;
  }

  .rail-link-text {
    display: block;
    font-size: 9px;
  }
}

@media (max-width: 480px) {
  .page-shell {
    padding-left: 10px;
    padding-right: 10px;
  }

  .hero-title {
    font-size: clamp(28px, 9vw, 54px);
  }

  .detail-title {
    font-size: clamp(24px, 8vw, 42px);
  }

  .hero-summary,
  .detail-summary {
    font-size: 17px;
  }

  .detail-brand {
    padding: 5px 10px 5px 5px;
  }

  .detail-brand-mark {
    width: 34px;
    height: 34px;
    padding: 6px;
  }

  .detail-brand-name {
    font-size: 13px;
  }

  .section {
    padding: 10px 10px 12px;
    border-radius: var(--radius-md);
  }

  .theme-toggle {
    padding: 8px 12px;
    font-size: 13px;
  }

  .card {
    padding: 14px;
    min-height: auto;
  }

  .chip {
    font-size: 10px;
    padding: 3px 6px;
  }

  .item-title {
    font-size: 15px;
  }

  .archive-title {
    font-size: clamp(18px, 5vw, 24px);
  }

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

  .resource-link {
    width: 100%;
  }

  .resource-embed {
    min-height: 480px;
  }

  .resource-doc .resource-embed {
    min-height: 440px;
  }
}