/* Ply — A browser for synthesis. Design memo + prototype. */

:root {
  /* Light theme — neutral white */
  --bg: #ffffff;
  --bg-2: #f4f4f5;
  --bg-3: #e9e9eb;
  --fg: #131314;
  --fg-2: #46464a;
  --fg-3: #76767c;
  --fg-4: #b2b2b8;
  --rule: #e6e6e8;
  --rule-2: #d6d6da;
  --accent: oklch(0.60 0.15 50);
  --accent-fg: #ffffff;
  --accent-bg: oklch(0.93 0.05 65);
  --red: oklch(0.55 0.16 25);
  --green: oklch(0.50 0.11 150);
  --blue: oklch(0.52 0.11 245);

  /* App-mockup chrome (neutral grays in light) */
  --app-frame: #e4e4e6;
  --app-frame-dim: #d6d6d8;
  --app-bar-1: #f0f0f2;
  --app-bar-2: #e4e4e6;
  --app-rail: #f3f3f5;
  --app-pane: #f8f8f9;
  --app-toolbar: #eeeef0;
  --app-hover: rgba(0,0,0,.045);
  --app-active: rgba(0,0,0,.075);
  --app-btn: rgba(255,255,255,.75);

  --serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --sans: "Geist", "Söhne", -apple-system, system-ui, sans-serif;
  --mono: "Geist Mono", "JetBrains Mono", ui-monospace, Menlo, monospace;
}

[data-theme="dark"] {
  /* Dark theme — true black */
  --bg: #000000;
  --bg-2: #0d0d0f;
  --bg-3: #19191c;
  --fg: #f3f3f4;
  --fg-2: #bdbdc2;
  --fg-3: #8a8a90;
  --fg-4: #5a5a60;
  --rule: #222226;
  --rule-2: #34343a;
  --accent: oklch(0.74 0.15 60);
  --accent-fg: #000000;
  --accent-bg: oklch(0.32 0.07 55);
  --red: oklch(0.65 0.17 25);
  --green: oklch(0.70 0.13 150);
  --blue: oklch(0.68 0.12 245);

  --app-frame: #1e1e22;
  --app-frame-dim: #141417;
  --app-bar-1: #1a1a1e;
  --app-bar-2: #1e1e22;
  --app-rail: #0c0c0e;
  --app-pane: #111114;
  --app-toolbar: #161619;
  --app-hover: rgba(255,255,255,.05);
  --app-active: rgba(255,255,255,.09);
  --app-btn: rgba(255,255,255,.08);
}

* { box-sizing: border-box; }

/* Themed full-viewport backdrop — robust against injected transparent rules */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: -1;
  pointer-events: none;
}

html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  max-width: 100%;
  background: var(--bg) !important;
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
}

body {
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: -0.005em;
}

/* ——— Document layout ——— */
.doc {
  max-width: 920px;
  margin: 0 auto;
  padding: 80px 56px 160px;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-3);
}

h1.title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 88px;
  line-height: 0.95;
  letter-spacing: -0.025em;
  margin: 12px 0 8px;
}

.lede {
  font-family: var(--serif);
  font-size: 26px;
  line-height: 1.3;
  color: var(--fg-2);
  letter-spacing: -0.01em;
  margin: 24px 0 0;
  max-width: 30ch;
}

.meta-row {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.meta-row > div { display: flex; flex-direction: column; gap: 4px; }
.meta-row strong { color: var(--fg); font-weight: 500; letter-spacing: 0.04em; }

section.sec {
  margin-top: 96px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}

.sec-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  gap: 16px;
  align-items: baseline;
}
.sec-num span { color: var(--fg-3); }

h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 44px;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 14px 0 28px;
  max-width: 22ch;
}

h3 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.01em;
  margin: 32px 0 8px;
  color: var(--fg);
}

p { margin: 0 0 16px; max-width: 64ch; }
p + p { margin-top: 4px; }

p.callout {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin: 28px 0;
  padding: 0 0 0 24px;
  border-left: 2px solid var(--accent);
  max-width: 36ch;
}

strong { font-weight: 600; color: var(--fg); }
em { font-style: italic; color: var(--fg-2); }

code, .mono {
  font-family: var(--mono);
  font-size: 0.85em;
  letter-spacing: -0.01em;
}

.kbd {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--bg-2);
  border: 1px solid var(--rule);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--fg-2);
}

/* Two-column reasoning grid */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin: 24px 0;
}

.two-col .cell {
  border-top: 1px solid var(--rule);
  padding-top: 12px;
}

.cell-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 8px;
}

.cell.rejected .cell-label { color: var(--red); }
.cell.rejected p { color: var(--fg-2); }

/* Numbered decision list */
.decisions {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin: 24px 0;
}

.decision {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--rule);
}

.decision:last-child { border-bottom: 1px solid var(--rule); }

.decision .n {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.06em;
  padding-top: 2px;
}

.decision h4 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 18px;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}

.decision .tradeoff {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-3);
  margin-top: 12px;
  display: flex;
  gap: 8px;
}

.decision .tradeoff strong { color: var(--red); font-weight: 500; }

ul.tight, ol.tight {
  margin: 8px 0 16px;
  padding-left: 20px;
}
ul.tight li, ol.tight li { margin: 4px 0; }

/* Inline figure */
figure {
  margin: 40px -80px;
  padding: 24px;
  background: var(--bg-2);
  border: 1px solid var(--rule);
  border-radius: 8px;
}

figure.flush { padding: 0; background: var(--bg); border: 1px solid var(--rule); overflow: hidden; }

figcaption {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 12px;
  padding: 0 8px;
}

/* Hero prototype mount */
#hero-mount {
  margin: 56px -80px 0;
}

/* Risks table */
.risks {
  margin: 24px 0;
  border-top: 1px solid var(--rule);
}

.risk {
  display: grid;
  grid-template-columns: 24px 1fr 1fr;
  gap: 32px;
  padding: 24px 0;
  border-bottom: 1px solid var(--rule);
}

.risk .n {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--red);
}

.risk h4 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 16px;
  margin: 0 0 8px;
}

.risk .col-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 6px;
}

.risk p { font-size: 14px; margin: 0; color: var(--fg-2); }

/* Canvas section */
#canvas-section {
  margin-top: 120px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}

#canvas-mount { margin: 32px 0 0; }

/* Mini mocks inline */
.mini-mock {
  margin: 32px -40px;
  background: var(--bg-2);
  border: 1px solid var(--rule);
  border-radius: 10px;
  overflow: hidden;
}

/* Anchor nav (left sidebar) */
.nav {
  position: fixed;
  top: 80px;
  left: 24px;
  width: 180px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-3);
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 50;
}

.nav a {
  color: var(--fg-3);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 4px;
  transition: color 120ms, background 120ms;
}
.nav a:hover { color: var(--fg); background: var(--bg-2); }
.nav a.active { color: var(--accent); }
.nav .nav-num { color: var(--fg-4); margin-right: 8px; }

@media (max-width: 1480px) { .nav { display: none; } }

/* Footer / brand mark */
.brandmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.02em;
}

.brandmark .dot {
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 2px;
  transform: rotate(45deg);
}

/* Anim helper */
@keyframes blink { 50% { opacity: 0; } }
.cursor { animation: blink 1.1s infinite steps(1); }

@keyframes fadein {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

/* ——— Product-doc additions ——— */

/* Platform badges */
.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 0;
}
.badge {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--fg-2);
  background: var(--bg-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 5px 10px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.badge .v { color: var(--accent); }

/* Feature grid (two-up) */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 40px;
  margin: 28px 0;
}
.feature {
  border-top: 1px solid var(--rule);
  padding-top: 14px;
}
.feature .ic {
  width: 28px; height: 28px;
  border: 1px solid var(--rule-2);
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  margin-bottom: 12px;
}
.feature h4 {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 16px;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
  display: flex; align-items: baseline; gap: 8px;
}
.feature h4 .sk {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--fg-3);
  letter-spacing: 0.04em;
}
.feature p { font-size: 14px; color: var(--fg-2); margin: 0; max-width: none; }

/* How-to steps */
.howto { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin: 24px 0; }
.howto .cell-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-3); margin-bottom: 10px; }

/* Shortcuts table */
.shortcuts-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.shortcuts-table td {
  padding: 11px 0;
  border-bottom: 1px solid var(--rule);
  color: var(--fg-2);
}
.shortcuts-table td:last-child { text-align: right; }
.shortcuts-table tr:first-child td { border-top: 1px solid var(--rule); }

/* Release notes */
.release { border-top: 1px solid var(--rule); padding: 20px 0; display: grid; grid-template-columns: 110px 1fr; gap: 24px; }
.release:last-child { border-bottom: 1px solid var(--rule); }
.release .ver { font-family: var(--mono); font-size: 13px; color: var(--accent); letter-spacing: 0.02em; }
.release .ver .tag { display: block; font-size: 10px; color: var(--fg-3); margin-top: 4px; letter-spacing: 0.08em; text-transform: uppercase; }
.release ul { margin: 0; padding-left: 18px; }
.release li { margin: 0 0 8px; color: var(--fg-2); font-size: 14px; }
.release li:last-child { margin-bottom: 0; }
.release li strong { color: var(--fg); }

/* Spec list (key-value) */
.spec { display: grid; grid-template-columns: 180px 1fr; gap: 4px 24px; margin: 20px 0; font-size: 14px; }
.spec dt { font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--fg-3); padding: 9px 0; border-top: 1px solid var(--rule); }
.spec dd { margin: 0; padding: 9px 0; border-top: 1px solid var(--rule); color: var(--fg-2); }

/* Pill note */
.note-pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em;
  color: var(--fg-2); background: var(--accent-bg);
  border: 1px solid oklch(0.82 0.06 60);
  border-radius: 99px; padding: 5px 12px; margin: 4px 0;
}

@media (max-width: 720px) {
  .feature-grid, .howto, .two-col { grid-template-columns: 1fr; }
}

/* Download buttons */
.downloads { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 4px; }
.dl-btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 13px 20px;
  border-radius: 9px;
  text-decoration: none;
  font-family: var(--sans);
  border: 1px solid var(--rule-2);
  transition: transform 120ms, border-color 120ms, background 120ms;
}
.dl-btn:hover { transform: translateY(-1px); }
.dl-btn .glyph { font-size: 20px; line-height: 1; }
.dl-btn .lbl { display: flex; flex-direction: column; gap: 1px; }
.dl-btn .lbl .top { font-size: 14px; font-weight: 500; letter-spacing: -0.01em; white-space: nowrap; }
.dl-btn .lbl .sub { font-family: var(--mono); font-size: 10px; letter-spacing: 0.04em; opacity: 0.7; white-space: nowrap; }
.dl-btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }
.dl-btn.primary:hover { border-color: var(--accent); }
.dl-btn.secondary { background: var(--bg-2); color: var(--fg); }
.dl-btn.secondary:hover { border-color: var(--fg-3); }

/* Inline install links */
.spec dd a { color: var(--accent); text-decoration: none; border-bottom: 1px solid color-mix(in oklch, var(--accent) 40%, transparent); }
.spec dd a:hover { border-bottom-color: var(--accent); }

/* Theme toggle */
.theme-toggle {
  position: fixed;
  top: 24px; right: 24px;
  z-index: 60;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-2);
  border: 1px solid var(--rule-2);
  border-radius: 99px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-2);
  cursor: pointer;
  transition: background 120ms, color 120ms, border-color 120ms;
}
.theme-toggle:hover { border-color: var(--fg-3); color: var(--fg); }
.theme-toggle .dotmark { width: 10px; height: 10px; border-radius: 99px; background: var(--accent); }

body { transition: background-color 200ms ease, color 200ms ease; }

/* Smooth scrolling */
html { scroll-behavior: smooth; }