/* Agent Designer — landing page styles
   Concept: a patch bay bridging agent CLIs. One light "printout" moment;
   everything else lives on the instrument panel. */

:root {
  --ink: #16232b;
  --ink-2: #1c2c35;
  --ink-3: #223641;
  --paper: #f1ecde;
  --paper-dim: #c9c2ae;
  --brass: #c08a3e;
  --brass-bright: #d9a756;
  --signal: #5fb8ae;
  --rust: #a6472a;
  --line: #2a3d46;

  --font-mono: "Fragment Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --font-serif: "Piazzolla", Georgia, "Times New Roman", serif;

  --wrap: 1080px;
  --gap: clamp(1.25rem, 2.5vw, 2.5rem);
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--brass);
  text-underline-offset: 0.2em;
  text-decoration-color: color-mix(in srgb, var(--brass) 55%, transparent);
}

a:hover {
  color: var(--brass-bright);
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--paper);
  color: var(--ink);
  padding: 0.6em 1em;
  z-index: 100;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2rem);
}

.mono {
  font-family: var(--font-mono);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--ink);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.1rem;
}

.wordmark {
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--paper);
  text-decoration: none;
}

.wordmark:hover {
  color: var(--paper);
}

.wordmark b {
  color: var(--brass);
  font-weight: 400;
}

.site-header nav {
  display: flex;
  gap: clamp(1rem, 3vw, 1.75rem);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.site-header nav a {
  text-decoration: none;
  color: var(--paper-dim);
}

.site-header nav a:hover {
  color: var(--brass-bright);
}

/* Hero */

.hero {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--gap);
  align-items: center;
}

.hero h1 {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: clamp(1.9rem, 4.6vw, 3.4rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0.6em 0 0.5em;
  color: var(--paper);
}

.hero .lede {
  font-size: 1.15rem;
  color: var(--paper-dim);
  max-width: 46ch;
  margin: 0 0 1.6rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.4rem;
  align-items: center;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-decoration: none;
  padding: 0.65em 1.1em;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  color: var(--paper);
  white-space: nowrap;
}

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

.btn.primary:hover {
  background: var(--brass-bright);
  border-color: var(--brass-bright);
  color: var(--ink);
}

.btn.ghost:hover {
  border-color: var(--brass);
  color: var(--brass-bright);
}

.status-line {
  margin-top: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--paper-dim);
}

.status-line .dot {
  color: var(--signal);
}

/* Patch bay diagram */

.patchbay {
  position: relative;
}

.patchbay svg {
  width: 100%;
  height: auto;
}

.cable-base {
  fill: none;
  stroke: var(--line);
  stroke-width: 2;
}

.cable-pulse {
  fill: none;
  stroke: var(--signal);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 40 560;
  animation: travel 7s linear infinite;
}

.cable-pulse.c2 { animation-delay: -1.75s; stroke: var(--brass); }
.cable-pulse.c3 { animation-delay: -3.5s; }
.cable-pulse.c4 { animation-delay: -5.25s; stroke: var(--brass); }

@keyframes travel {
  from { stroke-dashoffset: 600; }
  to { stroke-dashoffset: -600; }
}

.node-ring {
  fill: var(--ink-2);
  stroke: var(--brass);
  stroke-width: 2;
}

.node-core {
  fill: var(--signal);
}

.node-label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  fill: var(--paper-dim);
}

.node-label.self {
  fill: var(--paper);
}

/* Sections */

section {
  padding-block: clamp(2.25rem, 5vw, 3.5rem);
  border-top: 1px solid var(--line);
}

section h2 {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  color: var(--paper);
  margin: 0.4em 0 0.9em;
}

.section-intro {
  max-width: 62ch;
  color: var(--paper-dim);
}

/* Bridge cards */

.bridges {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 1.75rem;
}

.bridge-card {
  background: var(--ink-2);
  padding: 1.4rem 1.3rem;
}

.bridge-card .jack {
  width: 28px;
  height: 28px;
  margin-bottom: 0.9rem;
}

.bridge-card h3 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--paper);
  margin: 0 0 0.5rem;
}

.bridge-card p {
  font-size: 0.95rem;
  color: var(--paper-dim);
  margin: 0;
}

/* Steps */

.steps {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: baseline;
}

.steps .tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink);
  background: var(--brass);
  border-radius: 4px;
  padding: 0.15em 0.5em;
  align-self: start;
}

.steps p {
  margin: 0;
  color: var(--paper-dim);
}

.steps strong {
  color: var(--paper);
}

/* Code / printout block — the one light inversion on the page */

.printout {
  background: var(--paper);
  color: var(--ink);
  border-radius: 4px;
  margin-top: 1.75rem;
  position: relative;
  overflow: hidden;
}

.printout::before {
  content: "";
  display: block;
  height: 8px;
  background-image: radial-gradient(circle, var(--ink) 3px, transparent 3.5px);
  background-size: 16px 16px;
  background-position: 4px 2px;
  background-color: var(--paper);
  opacity: 0.35;
}

.printout pre {
  margin: 0;
  padding: 1.4rem 1.5rem 1.6rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.75;
}

.ledger {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.ledger th,
.ledger td {
  text-align: left;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid rgba(22, 35, 43, 0.12);
  white-space: nowrap;
}

.ledger td:nth-child(2) {
  white-space: normal;
  width: 100%;
}

.ledger thead th {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6b6455;
  border-bottom-color: rgba(22, 35, 43, 0.25);
}

.ledger tbody tr:last-child td {
  border-bottom: none;
}

.tag-status {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  padding: 0.2em 0.6em;
  border-radius: 3px;
}

.tag-status.done { background: var(--signal); color: var(--ink); }
.tag-status.wip { background: var(--brass); color: var(--ink); }
.tag-status.blocked { background: var(--rust); color: var(--paper); }

.printout .muted {
  color: #6b6455;
}

.copy-btn {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  background: transparent;
  border: 1px solid #6b6455;
  color: #52493a;
  border-radius: 4px;
  padding: 0.3em 0.6em;
  cursor: pointer;
}

.copy-btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 1.75rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  align-items: baseline;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--paper-dim);
}

.site-footer a {
  color: var(--paper-dim);
}

.site-footer a:hover {
  color: var(--brass-bright);
}

.site-footer .links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* Responsive */

@media (max-width: 780px) {
  .hero .wrap {
    grid-template-columns: 1fr;
  }

  .hero .patchbay {
    order: -1;
  }

  .ledger th,
  .ledger td {
    padding: 0.75rem 1rem;
  }
}

/* Motion */

@media (prefers-reduced-motion: reduce) {
  .cable-pulse {
    animation: none;
    stroke-dasharray: none;
    opacity: 0.55;
  }
}