/* ==========================================================================
   GTM Case Study — Editorial layer over Ticket Timeline tokens
   The TT tokens give us colors, type families, and base palette.
   This layer adds editorial chrome: container widths, doc rhythm, chapter
   nav, prose grids, system diagrams, and editorial primitives.
   ========================================================================== */

@font-face {
  font-family: "BebasNeueLocal";
  src: url("./fonts/BebasNeue-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Editorial accents — layered on top of TT tokens. We avoid TT's gold/sapphire
     widget accents (those are sport-specific) and use a single warm paper tone
     to soften the dark architecture without breaking it. */
  --cs-paper: #E9DFC9;           /* warm cream — pull-quotes, accent hairlines */
  --cs-paper-dim: #C9BFA8;
  --cs-ink: #0A0A0C;             /* deepest base for full-bleed panels */
  --cs-panel: #111216;           /* slightly lifted from --tt-bg */
  --cs-panel-2: #15161B;
  --cs-hairline: rgba(233, 223, 201, 0.10);
  --cs-hairline-strong: rgba(233, 223, 201, 0.22);
  --cs-rule: rgba(226, 232, 240, 0.08);
  --cs-quiet: rgba(226, 232, 240, 0.55);

  /* Editorial accent — user can tweak between paper, blue, or signal-only */
  --cs-accent: var(--cs-paper);

  /* Doc rhythm */
  --cs-col: 720px;
  --cs-col-wide: 1080px;
  --cs-col-fluid: 1280px;
  --cs-pad-x: clamp(24px, 5vw, 72px);
  --cs-section-y: clamp(80px, 12vh, 160px);
  --cs-block-y: clamp(40px, 6vh, 72px);

  /* Type */
  --cs-fs-display: clamp(56px, 9vw, 132px);
  --cs-fs-h1: clamp(40px, 5.5vw, 72px);
  --cs-fs-h2: clamp(28px, 3.4vw, 44px);
  --cs-fs-h3: 22px;
  --cs-fs-body: 18px;
  --cs-fs-body-lg: 21px;
  --cs-fs-small: 14px;
  --cs-fs-micro: 12px;
}

/* ----- Reset-ish ----- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--cs-ink);
  color: var(--tt-fg);
  font-family: var(--tt-font-ui);
  font-size: var(--cs-fs-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ----- Atmospheric background ----- */
.cs-atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 720px 540px at 90% -10%, rgba(75, 100, 184, 0.10), transparent 60%),
    radial-gradient(ellipse 620px 460px at -10% 12%, rgba(158, 112, 56, 0.06), transparent 65%),
    linear-gradient(180deg, #131418 0%, #0B0B0D 38%, #08080A 100%);
  pointer-events: none;
}

/* ==========================================================================
   Type primitives
   ========================================================================== */
.bebas {
  font-family: "BebasNeueLocal", var(--tt-font-display);
  letter-spacing: 0.5px;
  font-weight: 400;
  text-transform: uppercase;
  line-height: 0.95;
}
.tracked {
  text-transform: uppercase;
  letter-spacing: 1.4px;
  font-weight: 500;
  font-size: var(--cs-fs-micro);
  color: var(--tt-fg-dim);
}
.tracked-paper { color: var(--cs-paper-dim); }
.tracked-bright { color: var(--tt-fg-muted); }

.eyebrow {
  font-family: var(--tt-font-ui);
  text-transform: uppercase;
  letter-spacing: 1.6px;
  font-weight: 500;
  font-size: 12px;
  color: var(--cs-paper-dim);
}

.lede {
  font-size: clamp(22px, 2.2vw, 28px);
  line-height: 1.42;
  font-weight: 400;
  color: var(--tt-fg);
  letter-spacing: -0.1px;
  text-wrap: pretty;
}

.prose {
  font-size: var(--cs-fs-body);
  line-height: 1.6;
  color: var(--tt-fg-muted);
  text-wrap: pretty;
}
.prose strong { color: var(--tt-fg); font-weight: 500; }
.prose em { color: var(--cs-paper); font-style: italic; }
.prose a {
  color: var(--cs-paper);
  text-decoration: underline;
  text-decoration-color: rgba(233, 223, 201, 0.3);
  text-underline-offset: 3px;
}

.drop-cap::first-letter {
  font-family: "BebasNeueLocal", var(--tt-font-display);
  font-size: 5.4em;
  float: left;
  line-height: 0.78;
  padding-right: 0.12em;
  padding-top: 0.04em;
  color: var(--cs-paper);
  letter-spacing: 0;
}

/* ==========================================================================
   Page container & masthead
   ========================================================================== */

.cs-doc {
  max-width: var(--cs-col-fluid);
  margin: 0 auto;
  padding: 0 var(--cs-pad-x);
}

/* ----- Masthead ----- */
.masthead {
  width: 100%;
  min-height: 100vh;
  padding-top: clamp(48px, 8vh, 96px);
  padding-bottom: clamp(48px, 8vh, 96px);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  position: relative;
}
.masthead-rule {
  height: 1px;
  background: var(--cs-hairline-strong);
  margin-bottom: clamp(32px, 5vh, 56px);
}
.masthead-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  margin-bottom: clamp(80px, 14vh, 160px);
  flex-wrap: wrap;
}
.masthead-mark {
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.masthead-mark-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--cs-paper);
  display: inline-block;
  transform: translateY(1px);
}
.masthead-issue {
  text-align: right;
  color: var(--cs-paper-dim);
}

.masthead-title {
  width: 100%;
  max-width: 100%;
  font-family: var(--tt-font-ui);
  font-weight: 300;
  font-size: var(--cs-fs-display);
  letter-spacing: -0.04em;
  line-height: 0.94;
  margin: 0;
  color: var(--tt-fg);
  text-wrap: balance;
  font-variation-settings: "wdth" 100, "opsz" 144;
}
.masthead-title em {
  font-style: italic;
  color: var(--cs-paper);
  font-weight: 300;
}

.masthead-sub {
  width: 100%;
  max-width: 880px;
  margin-top: clamp(28px, 4vh, 48px);
  font-size: clamp(20px, 1.8vw, 26px);
  line-height: 1.45;
  color: var(--tt-fg-muted);
  font-weight: 300;
  text-wrap: pretty;
}

.masthead-meta {
  width: 100%;
  margin-top: clamp(56px, 9vh, 110px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px 48px;
  padding-top: 32px;
  border-top: 1px solid var(--cs-hairline);
}
.meta-cell .label {
  display: block;
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--cs-paper-dim);
  margin-bottom: 8px;
}
.meta-cell .value {
  font-size: 15px;
  color: var(--tt-fg);
  line-height: 1.45;
  font-weight: 400;
}
.meta-cell .value.mono {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 13px;
}

/* ==========================================================================
   Chapter nav (sticky side rail on desktop, top strip on mobile)
   ========================================================================== */
.cs-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
  width: 100%;
}
@media (min-width: 1025px) {
  .cs-shell {
    grid-template-columns: 240px minmax(0, 1fr);
  }
}
.cs-shell > article {
  min-width: 0;
  width: 100%;
}
.chapter-nav {
  position: sticky;
  top: 32px;
  align-self: start;
  padding-top: 8px;
  border-top: 1px solid var(--cs-hairline-strong);
}
.chapter-nav-label {
  margin: 12px 0 24px;
}
.chapter-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.chapter-link {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
  text-decoration: none;
  color: var(--tt-fg-dim);
  font-size: 13px;
  line-height: 1.4;
  letter-spacing: 0.1px;
  transition: color 120ms ease-out;
  font-weight: 400;
}
.chapter-link:hover { color: var(--cs-paper); }
.chapter-num {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--cs-paper-dim);
  letter-spacing: 0.5px;
  padding-top: 1px;
}
@media (max-width: 1024px) {
  .chapter-nav {
    position: relative;
    top: 0;
    width: 100%;
    margin-bottom: 32px;
  }
  .chapter-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px 20px;
  }
  .chapter-link { grid-template-columns: auto auto; }
}

@media (max-width: 640px) {
  .masthead-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: clamp(48px, 10vh, 96px);
  }
  .masthead-issue {
    text-align: left;
  }
  .masthead-title {
    text-wrap: pretty;
  }
  .masthead-meta {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ==========================================================================
   Sections / chapters
   ========================================================================== */
.chapter {
  padding-top: var(--cs-section-y);
  padding-bottom: var(--cs-section-y);
  border-top: 1px solid var(--cs-hairline);
  position: relative;
}
.chapter:first-of-type { border-top: 0; }
.chapter-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: baseline;
  margin-bottom: clamp(40px, 6vh, 80px);
}
.chapter-marker {
  font-family: "BebasNeueLocal", var(--tt-font-display);
  font-size: clamp(64px, 8vw, 120px);
  letter-spacing: 0.02em;
  line-height: 0.9;
  color: var(--cs-paper);
  font-weight: 400;
  text-transform: uppercase;
}
.chapter-title {
  font-family: var(--tt-font-ui);
  font-size: var(--cs-fs-h2);
  font-weight: 400;
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--tt-fg);
  margin: 0;
  text-wrap: balance;
  font-variation-settings: "opsz" 144;
}

/* Two-column reading grid */
.read {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: clamp(32px, 5vw, 80px);
}
@media (max-width: 880px) {
  .read { grid-template-columns: 1fr; }
}
.read-aside {
  padding-top: 6px;
}
.read-aside .tracked {
  margin-bottom: 12px;
  display: block;
}
.read-aside-note {
  font-size: 14px;
  line-height: 1.55;
  color: var(--cs-quiet);
  text-wrap: pretty;
}

.read-prose > p + p { margin-top: 1.4em; }
.read-prose h3 {
  font-family: var(--tt-font-ui);
  font-size: 24px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--tt-fg);
  margin: 2em 0 0.6em;
}
.read-prose h3 + p { margin-top: 0; }
.read-prose blockquote {
  margin: 1.6em 0;
  padding: 0 0 0 24px;
  border-left: 2px solid var(--cs-paper);
  font-size: 22px;
  font-style: italic;
  font-weight: 300;
  line-height: 1.45;
  color: var(--tt-fg);
}

/* ==========================================================================
   Editorial primitives
   ========================================================================== */

/* Full-width pull quote between chapters */
.pull-quote {
  margin: clamp(48px, 9vh, 96px) 0;
  padding: clamp(40px, 6vh, 64px) 0;
  border-top: 1px solid var(--cs-hairline-strong);
  border-bottom: 1px solid var(--cs-hairline-strong);
}
.pull-quote-text {
  font-family: var(--tt-font-ui);
  font-weight: 300;
  font-style: italic;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--tt-fg);
  max-width: 1100px;
  text-wrap: balance;
  margin: 0;
}
.pull-quote-text em { color: var(--cs-paper); font-style: italic; }
.pull-quote-attr {
  display: block;
  margin-top: 24px;
  font-size: 13px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--cs-paper-dim);
}

/* Stat row */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: clamp(16px, 2vw, 32px);
  margin: clamp(32px, 5vh, 56px) 0;
}
.stat {
  padding: 24px 0 24px 24px;
  border-left: 1px solid var(--cs-hairline-strong);
}
.stat-num {
  font-family: "BebasNeueLocal", var(--tt-font-display);
  font-size: clamp(48px, 5.5vw, 72px);
  line-height: 0.95;
  color: var(--tt-fg);
  letter-spacing: 0.01em;
  display: block;
}
.stat-num .unit {
  font-family: var(--tt-font-ui);
  font-size: 0.4em;
  margin-left: 8px;
  color: var(--cs-paper-dim);
  letter-spacing: 0;
  text-transform: uppercase;
  font-weight: 500;
  vertical-align: 0.2em;
}
.stat-label {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--cs-paper-dim);
  font-weight: 500;
}
.stat-foot {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--tt-fg-dim);
  line-height: 1.4;
}

/* Cards using TT's "Teams" shell pattern */
.tt-shell {
  background: linear-gradient(135deg, var(--tt-shell-teams-a) 0%, var(--tt-shell-teams-b) 100%);
  border: 1px solid var(--tt-shell-teams-border);
  border-radius: var(--tt-radius-lg);
  box-shadow: var(--tt-shell-shadow);
  padding: 24px;
}
.tt-shell-stats {
  background: linear-gradient(135deg, var(--tt-shell-stats-a), var(--tt-shell-stats-b));
  border-color: var(--tt-shell-stats-border);
}
.tt-shell-hof {
  background: linear-gradient(135deg, var(--tt-shell-hof-a), var(--tt-shell-hof-b));
  border-color: var(--tt-shell-hof-border);
}
.tt-shell-gold {
  background: linear-gradient(135deg, var(--tt-shell-gold-gloves-a), var(--tt-shell-gold-gloves-b));
  border-color: var(--tt-shell-gold-gloves-border);
}

.shell-label {
  font-size: 12px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--cs-paper-dim);
  font-weight: 500;
  margin: 0 0 14px;
}

/* Grid layouts */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 880px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* Hairline rule */
.rule {
  height: 1px;
  background: var(--cs-hairline);
  margin: clamp(48px, 6vh, 80px) 0;
}
.rule-strong { background: var(--cs-hairline-strong); }

/* ==========================================================================
   System diagrams & data tables
   ========================================================================== */

/* Lifecycle flow */
.flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin: 32px 0;
}
@media (max-width: 880px) {
  .flow { grid-template-columns: 1fr 1fr; }
}
.flow-node {
  background: linear-gradient(135deg, var(--tt-shell-teams-a) 0%, var(--tt-shell-teams-b) 100%);
  border: 1px solid var(--tt-shell-teams-border);
  border-radius: var(--tt-radius-md);
  padding: 20px 16px;
  position: relative;
}
.flow-node .step {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--cs-paper-dim);
  letter-spacing: 0.6px;
}
.flow-node .name {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  color: var(--tt-fg);
  font-weight: 500;
  line-height: 1.25;
}
.flow-node .event {
  display: block;
  margin-top: 6px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--tt-brand-blue);
  letter-spacing: 0.2px;
  word-break: break-word;
}
.flow-node .source {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid var(--cs-hairline);
  font-size: 11px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--cs-paper-dim);
  font-weight: 500;
}

/* Data table — editorial style */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 24px 0;
}
.data-table thead th {
  font-size: 11px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--cs-paper-dim);
  font-weight: 500;
  text-align: left;
  padding: 12px 16px 12px 0;
  border-bottom: 1px solid var(--cs-hairline-strong);
}
.data-table tbody td {
  padding: 14px 16px 14px 0;
  border-bottom: 1px solid var(--cs-hairline);
  color: var(--tt-fg-muted);
  vertical-align: top;
  line-height: 1.45;
}
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table td.mono, .data-table th.mono { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 13px; color: var(--tt-fg); }
.data-table td.fg { color: var(--tt-fg); }
.data-table td.num { font-variant-numeric: tabular-nums; text-align: right; }
.data-table th.num { text-align: right; }

/* Inline pills/chips for taxonomy */
.chip {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 4px;
  font-family: var(--tt-font-ui);
}
.chip-conv { background: rgba(34, 197, 94, 0.14); color: #6EE7A0; }
.chip-feed { background: rgba(76, 125, 255, 0.14); color: #9FB7FF; }
.chip-need { background: rgba(212, 175, 55, 0.14); color: #D4AF37; }
.chip-live { background: rgba(34, 197, 94, 0.18); color: #6EE7A0; }
.chip-future { background: rgba(142, 144, 153, 0.18); color: var(--tt-fg-dim); }

/* Code-styled inline token */
code, .code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.86em;
  background: rgba(233, 223, 201, 0.06);
  border: 1px solid var(--cs-hairline);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--cs-paper);
}

/* ==========================================================================
   Prompt cards (content architecture exhibits)
   ========================================================================== */
.prompt-card {
  background: linear-gradient(135deg, var(--tt-shell-teams-a) 0%, var(--tt-shell-teams-b) 100%);
  border: 1px solid var(--tt-shell-teams-border);
  border-radius: var(--tt-radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.prompt-card .crumb {
  font-size: 11px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--cs-paper-dim);
  font-weight: 500;
}
.prompt-card .prompt {
  font-size: 18px;
  line-height: 1.35;
  color: var(--tt-fg);
  font-weight: 400;
  letter-spacing: -0.005em;
}
.prompt-card .scaffold {
  font-size: 14px;
  line-height: 1.55;
  color: var(--tt-fg-muted);
}
.prompt-card .meta {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--cs-hairline);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 11px;
  color: var(--tt-fg-dim);
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

/* ==========================================================================
   Email exhibit (Welcome / "You're In")
   ========================================================================== */
.email-frame {
  background: #F4ECE0;
  border-radius: 12px;
  padding: clamp(28px, 4vw, 56px);
  color: #2A2925;
  box-shadow: var(--tt-shadow-card);
  font-family: var(--tt-font-ui);
  position: relative;
  overflow: hidden;
}
.email-frame .email-from {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: #6F6A60;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  margin-bottom: 24px;
}
.email-frame .email-from span { color: #2A2925; }
.email-frame h3 {
  font-family: "Georgia", "Iowan Old Style", serif;
  font-weight: 700;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.15;
  color: #2A2925;
  margin: 0 0 24px;
  text-wrap: balance;
}
.email-frame p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.55;
  color: #3C3A33;
  font-family: "Georgia", "Iowan Old Style", serif;
}
.email-frame .email-cta {
  display: inline-block;
  margin: 16px 0 8px;
  padding: 14px 28px;
  background: #0F4A4D;
  color: #fff;
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 0.5px;
  font-weight: 500;
}

/* ==========================================================================
   Capability map (what this demonstrates)
   ========================================================================== */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--cs-hairline);
  border: 1px solid var(--cs-hairline);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 32px;
}
@media (max-width: 1024px) { .capability-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .capability-grid { grid-template-columns: 1fr; } }
.cap {
  background: var(--cs-panel);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 160px;
}
.cap-num {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--cs-paper-dim);
  letter-spacing: 0.6px;
}
.cap-title {
  font-size: 18px;
  font-weight: 500;
  color: var(--tt-fg);
  line-height: 1.2;
  margin: 4px 0 4px;
  letter-spacing: -0.005em;
}
.cap-desc {
  font-size: 13px;
  line-height: 1.5;
  color: var(--tt-fg-muted);
  margin-top: auto;
}

/* ==========================================================================
   Colophon
   ========================================================================== */
.colophon {
  margin-top: var(--cs-section-y);
  padding: clamp(40px, 7vh, 80px) 0 clamp(60px, 10vh, 120px);
  border-top: 1px solid var(--cs-hairline-strong);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
}
@media (max-width: 880px) { .colophon { grid-template-columns: 1fr; } }

.colophon h3 {
  font-family: var(--tt-font-ui);
  font-weight: 400;
  font-size: 32px;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--tt-fg);
  margin: 0 0 20px;
}
.colophon p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--tt-fg-muted);
  margin: 0 0 16px;
}
.colophon ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.colophon li {
  padding: 14px 0;
  border-bottom: 1px solid var(--cs-hairline);
  font-size: 14px;
  color: var(--tt-fg-muted);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: baseline;
}
.colophon li .yr {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--cs-paper-dim);
  letter-spacing: 0.4px;
}
.colophon li .role {
  display: block;
  font-size: 12px;
  color: var(--tt-fg-dim);
  margin-top: 4px;
  letter-spacing: 0.3px;
}
.colophon li .co { color: var(--tt-fg); font-weight: 500; }

.signoff {
  margin-top: clamp(80px, 12vh, 140px);
  padding: clamp(32px, 5vh, 48px) 0;
  border-top: 1px solid var(--cs-hairline);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--cs-paper-dim);
}

/* ==========================================================================
   Accent variants (Tweaks)
   ========================================================================== */
:root[data-accent="paper"] { --cs-accent: var(--cs-paper); }
:root[data-accent="blue"]  { --cs-accent: var(--tt-brand-blue); }
:root[data-accent="sage"]  { --cs-paper: #B8C5A8; --cs-paper-dim: #9AA88C; }
:root[data-accent="rust"]  { --cs-paper: #C68C5C; --cs-paper-dim: #9E6E48; }

/* Reading density */
:root[data-density="comfortable"] { --cs-section-y: clamp(96px, 14vh, 200px); }
:root[data-density="compact"]     { --cs-section-y: clamp(56px, 8vh, 96px); }

/* ==========================================================================
   Selection
   ========================================================================== */
::selection {
  background: var(--cs-paper);
  color: #1A1815;
}

/* ==========================================================================
   Site navigation (back to portfolio)
   ========================================================================== */
.cs-site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: calc(14px + env(safe-area-inset-top, 0px)) var(--cs-pad-x) 14px;
  background: rgba(10, 10, 12, 0.88);
  border-bottom: 1px solid var(--cs-hairline);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.cs-site-nav-home {
  font-family: var(--tt-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--cs-paper);
  transition: color 0.2s ease;
}
.cs-site-nav-home:hover {
  color: #fff;
}
.cs-site-nav-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cs-paper-dim);
}
@media (max-width: 560px) {
  .cs-site-nav-label { display: none; }
}