/* soloagent.dev — paper, ink, and one live signal. Shared tokens and components. */

:root {
  --paper: #f5f4ef;
  --paper-2: #ecebe3;
  --ink: #15140f;
  --lime: #d2f53c;
  --lime-deep: #b9dc1f;

  --bg: var(--paper);
  --bg-subtle: #efeee8;
  --bg-muted: #e6e5dc;
  --surface: #fbfbf8;
  --text: var(--ink);
  --text-2: #47463e;
  --text-3: #68675d; /* 4.5:1 on paper, paper-2, and bg-muted */
  --line: #d9d7cd;
  --line-strong: #b9b7ab;
  --accent: var(--ink);
  --accent-text: var(--ink);
  --mark: var(--lime);
  --button: var(--ink);
  --button-text: var(--paper);
  --code-bg: #1b1a15;
  --code-text: #ecebe3;
  --code-line: #2e2d26;
  --warn: #9a5b00;
  --ok: #3f6b00;
  --shadow: 0 1px 0 rgba(21, 20, 15, 0.04), 0 18px 40px -24px rgba(21, 20, 15, 0.35);

  --font: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Martian Mono", "IBM Plex Mono", ui-monospace, monospace;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --wrap: 1200px;
  --radius: 6px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12110d;
    --bg-subtle: #191813;
    --bg-muted: #22211a;
    --surface: #1a1914;
    --text: #efeee6;
    --text-2: #bdbbb0;
    --text-3: #8d8b80;
    --line: #2c2b23;
    --line-strong: #45443a;
    --accent: var(--lime);
    --accent-text: var(--lime);
    --button: var(--lime);
    --button-text: var(--ink);
    --code-bg: #0c0c09;
    --code-line: #26251e;
    --warn: #e0a23a;
    --ok: #b9dc1f;
    --shadow: 0 1px 0 rgba(0, 0, 0, 0.4), 0 18px 40px -24px rgba(0, 0, 0, 0.8);
    color-scheme: dark;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 84px;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection {
  background: var(--lime);
  color: var(--ink);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.2;
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

code,
kbd,
pre {
  font-family: var(--mono);
}

:not(pre) > code {
  font-size: 0.86em;
  padding: 0.12em 0.36em;
  border-radius: 4px;
  background: var(--bg-muted);
  white-space: nowrap;
}

kbd {
  font-size: 0.8em;
  padding: 0.1em 0.42em;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--surface);
}

:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
  border-radius: 3px;
}

.nowrap {
  white-space: nowrap;
}

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

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px;
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 16px;
  top: 12px;
  z-index: 100;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--text);
}

/* The lime marker: highlights a phrase the way a pen would. */
.marker {
  background: linear-gradient(transparent 8%, var(--lime) 8%, var(--lime) 92%, transparent 92%);
  color: var(--ink);
  padding: 0 0.12em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

/* Mono labels: the ledger voice. */
.label {
  font: 500 12px/1.4 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* ── Header ───────────────────────────────────────────── */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: saturate(1.3) blur(10px);
  -webkit-backdrop-filter: saturate(1.3) blur(10px);
  border-bottom: 1px solid var(--text);
}

.header .wrap {
  display: flex;
  align-items: center;
  height: 60px;
  gap: 36px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 600 16px/1 var(--display);
  font-stretch: 87.5%;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.brand img {
  width: 24px;
  height: 24px;
}

.nav {
  display: flex;
  gap: 26px;
  font: 400 13px/1 var(--mono);
}

.nav a {
  color: var(--text-2);
  text-decoration: none;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--lime-deep);
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

@media (max-width: 860px) {
  .nav {
    display: none;
  }
  .header-actions .btn-ghost {
    display: none;
  }
}

/* ── Buttons ──────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 44px;
  padding: 0 18px;
  border-radius: var(--radius);
  border: 1px solid var(--text);
  background: transparent;
  color: var(--text);
  font: 500 14px/1 var(--mono);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.btn:hover {
  background: var(--text);
  color: var(--bg);
}

.btn-lime {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.btn-lime:hover {
  background: var(--lime-deep);
  border-color: var(--lime-deep);
  color: var(--ink);
}

.btn-ink {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.btn-ink:hover {
  background: #2a2922;
  border-color: #2a2922;
  color: var(--paper);
}

.btn-ghost {
  border-color: transparent;
  color: var(--text-2);
}

.btn-ghost:hover {
  background: var(--bg-muted);
  color: var(--text);
}

.btn-sm {
  height: 36px;
  padding: 0 14px;
  font-size: 13px;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex: none;
}

.btn .arrow {
  transition: transform 0.15s;
}

.btn:hover .arrow {
  transform: translateX(3px);
}

/* Links: ink with a lime marker underline that fills on hover. */
.link {
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
  background: linear-gradient(var(--lime), var(--lime)) 0 100% / 100% 0.3em no-repeat;
  transition: background-size 0.15s, color 0.15s;
}

.link:hover {
  background-size: 100% 100%;
  color: var(--ink);
}

/* ── Code ─────────────────────────────────────────────── */

.code {
  position: relative;
  border-radius: var(--radius);
  background: var(--code-bg);
  color: var(--code-text);
  overflow: hidden;
}

.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 38px;
  padding: 6px 8px 6px 16px;
  border-bottom: 1px solid var(--code-line);
  font: 500 11.5px/1.3 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #8d8b80;
}

.code pre {
  margin: 0;
  padding: 16px 18px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.7;
  color: var(--code-text);
}

.code pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  white-space: pre;
}

.copy {
  height: 26px;
  padding: 0 10px;
  border: 1px solid var(--code-line);
  border-radius: 4px;
  background: transparent;
  color: #8d8b80;
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  flex: none;
}

.copy:hover,
.copy.copied {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
}

/* Ink outlines vanish on the dark code background. */
.code :focus-visible {
  outline-color: var(--lime);
}

/* .code clips overflow, so draw a scrolled pre's focus ring inside it. */
.code pre:focus-visible {
  outline-offset: -2px;
}

.code-float pre {
  padding-right: 84px;
}

.code-float > .copy {
  position: absolute;
  top: 12px;
  right: 12px;
}

.t-c {
  color: #8a887c;
}
.t-k {
  color: var(--lime);
}
.t-s {
  color: #e9d8a6;
}
.t-f,
.t-v {
  color: #ffffff;
  font-weight: 500;
}
.t-n {
  color: #f0b27a;
}
.cmd::before {
  content: "$ ";
  color: var(--lime);
  user-select: none;
}

/* ── Tables ───────────────────────────────────────────── */

.table-wrap {
  overflow-x: auto;
  border-top: 1px solid var(--text);
  border-bottom: 1px solid var(--text);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 14px 16px 14px 0;
  border-bottom: 1px solid var(--line);
}

th {
  font: 500 11.5px/1.4 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-3);
}

tbody tr:last-child td {
  border-bottom: 0;
}

td code {
  white-space: nowrap;
}

/* ── Footer ───────────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--text);
  padding: 56px 0 40px;
  font-size: 14px;
  color: var(--text-2);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 32px;
}

.footer-grid p {
  max-width: 34ch;
  margin-top: 14px;
  color: var(--text-3);
}

.footer h2,
.footer h4 {
  font: 500 11.5px/1.4 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 14px;
}

.footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.footer ul a {
  text-decoration: none;
  color: var(--text);
}

.footer ul a:hover {
  text-decoration: underline;
  text-decoration-color: var(--lime-deep);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.footer-base {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font: 400 12px/1.5 var(--mono);
  color: var(--text-3);
}

.footer-base a {
  color: inherit;
}

@media (max-width: 760px) {
  .wrap {
    padding: 0 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid > :first-child {
    grid-column: 1 / -1;
  }
  .code-float pre {
    padding-top: 46px;
    padding-right: 18px;
  }
}