/* ============================================================
   AGENTHOST — editorial terminal
   Instrument Serif (display) × IBM Plex Mono (protocol)
   ============================================================ */

:root {
  --bg: #060807;
  --bg-2: #0b100d;
  --bg-3: #101713;
  --ink: #e9f3ec;
  --mut: #8da69a;
  --dim: #5c7269;
  --grn: #34f5a2;
  --grn-soft: rgba(52, 245, 162, 0.12);
  --amb: #ffb454;
  --line: rgba(141, 166, 154, 0.16);
  --line-hot: rgba(52, 245, 162, 0.35);
  --serif: "Instrument Serif", "Times New Roman", serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;
  --max: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--grn); color: var(--bg); }

a { color: inherit; }

code {
  font-family: var(--mono);
  font-size: 0.92em;
  color: var(--grn);
  background: var(--grn-soft);
  padding: 0.1em 0.4em;
  border-radius: 3px;
}

/* ---- grain + scanline atmosphere ---- */
.grain {
  position: fixed; inset: -50%;
  pointer-events: none; z-index: 9;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 7s steps(8) infinite;
}
@keyframes grain {
  0%,100% { transform: translate(0,0); } 25% { transform: translate(2%,-3%); }
  50% { transform: translate(-3%,2%); } 75% { transform: translate(3%,3%); }
}

/* ============ NAV ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px;
  background: rgba(6, 8, 7, 0.72);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(141, 166, 154, 0.08);
}
.nav-mark {
  font-family: var(--mono); font-weight: 600; letter-spacing: 0.14em;
  font-size: 14px; text-decoration: none; display: flex; align-items: center; gap: 10px;
}
.nav-mark em { font-family: var(--serif); font-style: italic; font-size: 17px; letter-spacing: 0.02em; color: var(--grn); }
.nav-dot {
  width: 8px; height: 8px; background: var(--grn); border-radius: 50%;
  box-shadow: 0 0 12px var(--grn);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }
.nav-links { display: flex; align-items: center; gap: 26px; font-size: 13px; }
.nav-links a { text-decoration: none; color: var(--mut); transition: color 0.2s; }
.nav-links a:hover { color: var(--grn); }
.nav-cta {
  color: var(--bg) !important; background: var(--grn);
  padding: 7px 16px; border-radius: 3px; font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.2s !important;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 0 24px rgba(52,245,162,0.45); }

/* ============ HERO ============ */
.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 120px 32px 0;
}
#lattice { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }
.hero-veil {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(ellipse 70% 55% at 32% 48%, rgba(6,8,7,0.88), rgba(6,8,7,0.25) 60%, transparent),
    linear-gradient(to bottom, rgba(6,8,7,0.4), transparent 30%, transparent 70%, var(--bg));
}
.hero-inner { position: relative; z-index: 2; max-width: var(--max); margin: 0 auto; width: 100%; }

.hero-kicker { font-size: 13px; color: var(--mut); letter-spacing: 0.08em; margin-bottom: 28px; }
.chip {
  display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: 0.12em;
  border: 1px solid var(--line); color: var(--mut);
  padding: 3px 10px; border-radius: 99px; text-transform: uppercase;
}
.chip-grn { border-color: var(--line-hot); color: var(--grn); background: var(--grn-soft); }

.hero-title {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(46px, 7.2vw, 96px);
  line-height: 1.02; letter-spacing: -0.01em;
  margin-bottom: 30px;
}
.hero-title span { display: block; }
.hero-title em { font-style: italic; color: var(--grn); }

.hero-sub { max-width: 540px; color: var(--mut); font-size: 15px; margin-bottom: 38px; }
.hero-sub a { color: var(--ink); text-decoration-color: var(--grn); text-underline-offset: 3px; }
.hero-sub a:hover { color: var(--grn); }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 30px; }
.btn {
  font-family: var(--mono); font-size: 13.5px; font-weight: 600; letter-spacing: 0.04em;
  text-decoration: none; padding: 13px 24px; border-radius: 3px;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-solid { background: var(--grn); color: var(--bg); }
.btn-solid:hover { transform: translateY(-2px); box-shadow: 0 0 32px rgba(52,245,162,0.4); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--line-hot); color: var(--grn); transform: translateY(-2px); }
.btn-full { display: block; text-align: center; }

.hero-meta { font-size: 12.5px; color: var(--dim); letter-spacing: 0.05em; }
.hero-meta .sep { margin: 0 10px; }
.hero-meta .grn { color: var(--grn); }

/* ticker */
.hero-ticker {
  position: relative; z-index: 2;
  margin-top: auto; border-top: 1px solid var(--line);
  overflow: hidden; white-space: nowrap;
  padding: 13px 0; margin-left: -32px; margin-right: -32px;
  mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
}
.ticker-track { display: inline-flex; gap: 42px; animation: tick 36s linear infinite; will-change: transform; }
.ticker-track span { font-size: 12px; color: var(--dim); letter-spacing: 0.08em; }
.ticker-track i { font-style: normal; font-size: 12px; color: var(--grn); font-weight: 600; }
@keyframes tick { to { transform: translateX(-50%); } }

/* ============ SECTIONS ============ */
.sect { position: relative; max-width: var(--max); margin: 0 auto; padding: 130px 32px 0; }
.sect-head { margin-bottom: 56px; max-width: 640px; }
.sect-no {
  display: block; font-size: 12px; color: var(--grn); letter-spacing: 0.3em;
  margin-bottom: 14px;
}
.sect-no::after { content: " /////"; color: var(--dim); letter-spacing: 0; }
.sect-head h2 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(34px, 4.6vw, 56px); line-height: 1.05; margin-bottom: 16px;
}
.sect-head h2 em { font-style: italic; color: var(--grn); }
.sect-head p { color: var(--mut); max-width: 560px; }

/* ============ TERMINAL ============ */
.sect-term { max-width: 880px; }
.term {
  border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
  background: linear-gradient(180deg, var(--bg-2), var(--bg));
  box-shadow: 0 30px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(52,245,162,0.04), 0 0 60px rgba(52,245,162,0.05);
}
.term-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-bottom: 1px solid var(--line);
  background: rgba(141,166,154,0.04);
}
.term-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.term-dot:first-child { background: rgba(255,180,84,0.5); }
.term-title { font-size: 12px; color: var(--dim); margin-left: 10px; }
.term-time { margin-left: auto; font-size: 12px; color: var(--grn); }
.term-body {
  font-family: var(--mono); font-size: 13px; line-height: 1.75;
  padding: 22px 24px 28px; min-height: 340px; white-space: pre-wrap;
  color: var(--mut);
}
.term-body .t-cmd { color: var(--ink); }
.term-body .t-dollar { color: var(--grn); }
.term-body .t-status { color: var(--amb); font-weight: 600; }
.term-body .t-ok { color: var(--grn); font-weight: 600; }
.term-body .t-key { color: var(--ink); }
.term-body .t-comment { color: var(--dim); font-style: italic; }
.t-cursor {
  display: inline-block; width: 8px; height: 15px; vertical-align: -2px;
  background: var(--grn); animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ============ FLOW ============ */
.flow { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.flow-step { background: var(--bg); padding: 30px 26px 36px; position: relative; transition: background 0.3s; }
.flow-step:hover { background: var(--bg-2); }
.flow-step:hover .flow-code { text-shadow: 0 0 24px currentColor; }
.flow-code {
  font-size: 38px; font-weight: 600; letter-spacing: 0.02em; color: var(--dim);
  display: block; margin-bottom: 20px; transition: text-shadow 0.3s;
}
.flow-code.grn { color: var(--grn); }
.flow-step h3 { font-family: var(--serif); font-weight: 400; font-size: 21px; margin-bottom: 10px; }
.flow-step p { font-size: 13px; color: var(--mut); }

/* ============ PRICING ============ */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.price-card {
  border: 1px solid var(--line); border-radius: 6px; padding: 30px 28px;
  background: var(--bg-2);
  transition: transform 0.25s ease, border-color 0.25s, box-shadow 0.25s;
}
.price-card:hover { transform: translateY(-4px); border-color: var(--line-hot); }
.price-hot { border-color: var(--line-hot); background: linear-gradient(180deg, rgba(52,245,162,0.05), var(--bg-2)); box-shadow: 0 0 50px rgba(52,245,162,0.07); }
.price-card header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 26px; }
.price-card h3 { font-family: var(--serif); font-style: italic; font-weight: 400; font-size: 26px; }
.price { font-size: 14px; color: var(--mut); }
.price strong { font-size: 44px; font-weight: 500; color: var(--ink); letter-spacing: -0.03em; }
.price-alt { font-size: 12.5px; color: var(--dim); margin: 4px 0 24px; }
.price-card ul { list-style: none; margin-bottom: 28px; }
.price-card li { font-size: 13px; color: var(--mut); padding: 8px 0; border-top: 1px dashed var(--line); }
.price-card li::before { content: "+ "; color: var(--grn); }
.fineprint { margin-top: 28px; font-size: 12px; color: var(--dim); }

/* coming soon */
.chip-amb { border-color: rgba(255,180,84,0.35); color: var(--amb); background: rgba(255,180,84,0.08); }
.soon {
  display: flex; gap: 28px; align-items: flex-start; flex-wrap: wrap;
  border: 1px dashed var(--line); border-radius: 6px;
  padding: 22px 26px; margin-top: 22px;
}
.soon-items { display: flex; gap: 48px; flex-wrap: wrap; flex: 1; min-width: 280px; }
.soon-item { max-width: 360px; }
.soon-item h4 { font-family: var(--serif); font-style: italic; font-weight: 400; font-size: 21px; margin-bottom: 6px; }
.soon-item p { font-size: 13px; color: var(--mut); }

/* ============ CHANNELS ============ */
.chan-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.chan {
  background: var(--bg); padding: 30px 28px; text-decoration: none;
  display: flex; flex-direction: column; gap: 8px;
  transition: background 0.25s;
}
.chan:hover { background: var(--bg-2); }
.chan:hover .chan-k { color: var(--grn); }
.chan-k { font-family: var(--serif); font-size: 26px; font-style: italic; transition: color 0.2s; }
.chan-k::after { content: " ↗"; font-family: var(--mono); font-size: 14px; color: var(--dim); }
.chan-v { font-size: 13px; color: var(--mut); }

/* ============ OUTRO ============ */
.outro {
  position: relative; text-align: center;
  padding: 200px 32px 160px; overflow: hidden;
}
.outro-402 {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-style: italic;
  font-size: clamp(240px, 42vw, 560px); line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(52,245,162,0.13);
  pointer-events: none; user-select: none;
}
.outro h2 {
  position: relative; font-family: var(--serif); font-weight: 400;
  font-size: clamp(36px, 5.4vw, 64px); line-height: 1.08; margin-bottom: 36px;
}
.outro h2 em { font-style: italic; color: var(--grn); }
.outro-sub {
  position: relative; color: var(--mut); font-size: 14.5px;
  margin: -10px auto 38px; max-width: 560px;
}
.outro .hero-actions { justify-content: center; }

/* ============ FOOTER ============ */
.foot {
  border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  padding: 26px 32px; font-size: 12px; color: var(--dim); letter-spacing: 0.04em;
}
.foot em { font-family: var(--serif); font-style: italic; color: var(--grn); }
.foot nav { display: flex; gap: 20px; }
.foot a { color: var(--mut); text-decoration: none; }
.foot a:hover { color: var(--grn); }

/* ============ REVEALS ============ */
.reveal { opacity: 0; transform: translateY(22px); animation: rise 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) forwards; }
.d1 { animation-delay: 0.08s; } .d2 { animation-delay: 0.18s; } .d3 { animation-delay: 0.3s; }
.d4 { animation-delay: 0.42s; } .d5 { animation-delay: 0.54s; } .d6 { animation-delay: 0.7s; }
@keyframes rise { to { opacity: 1; transform: none; } }

.io-reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s cubic-bezier(0.2,0.7,0.2,1), transform 0.8s cubic-bezier(0.2,0.7,0.2,1); }
.io-reveal.is-in { opacity: 1; transform: none; }
.flow-step.io-reveal:nth-child(2), .price-card.io-reveal:nth-child(2) { transition-delay: 0.1s; }
.flow-step.io-reveal:nth-child(3), .price-card.io-reveal:nth-child(3) { transition-delay: 0.2s; }
.flow-step.io-reveal:nth-child(4) { transition-delay: 0.3s; }

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

@media (prefers-reduced-motion: reduce) {
  .reveal, .io-reveal { opacity: 1 !important; transform: none !important; animation: none !important; transition: none !important; }
  .ticker-track { animation: none; }
  .grain { animation: none; }
  html { scroll-behavior: auto; }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .flow { grid-template-columns: 1fr 1fr; }
  .price-grid { grid-template-columns: 1fr; }
  .chan-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .nav { padding: 14px 18px; }
  .nav-links { gap: 16px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .hero, .sect { padding-left: 18px; padding-right: 18px; }
  .hero-ticker { margin-left: -18px; margin-right: -18px; }
  .flow { grid-template-columns: 1fr; }
  .foot { flex-direction: column; align-items: flex-start; }
}

/* ============================================================
   DOCS
   ============================================================ */
body[data-page="docs"] { background: var(--bg); }
.docs-wrap {
  display: grid; grid-template-columns: 240px 1fr;
  max-width: 1180px; margin: 0 auto; padding: 110px 32px 120px; gap: 56px;
}
.docs-side { position: sticky; top: 110px; align-self: start; }
.docs-side h4 {
  font-size: 11px; letter-spacing: 0.24em; color: var(--grn);
  text-transform: uppercase; margin: 26px 0 10px; font-weight: 600;
}
.docs-side h4:first-child { margin-top: 0; }
.docs-side a {
  display: block; font-size: 13px; color: var(--mut); text-decoration: none;
  padding: 5px 0 5px 14px; border-left: 1px solid var(--line);
  transition: color 0.15s, border-color 0.15s;
}
.docs-side a:hover, .docs-side a.active { color: var(--grn); border-left-color: var(--grn); }

.docs-main { min-width: 0; }
.docs-main h1 {
  font-family: var(--serif); font-weight: 400; font-size: clamp(38px, 5vw, 54px);
  line-height: 1.05; margin-bottom: 14px;
}
.docs-main h1 em { font-style: italic; color: var(--grn); }
.docs-main .lede { color: var(--mut); max-width: 600px; margin-bottom: 14px; }
.docs-main h2 {
  font-family: var(--serif); font-weight: 400; font-size: 32px;
  margin: 72px 0 16px; padding-top: 26px; border-top: 1px solid var(--line);
}
.docs-main h2 em { font-style: italic; color: var(--grn); }
.docs-main h3 { font-size: 15px; font-weight: 600; margin: 34px 0 10px; color: var(--ink); }
.docs-main p { color: var(--mut); margin-bottom: 14px; max-width: 640px; }
.docs-main ul, .docs-main ol { color: var(--mut); margin: 0 0 16px 22px; max-width: 620px; }
.docs-main li { margin-bottom: 6px; }
.docs-main strong { color: var(--ink); font-weight: 600; }

.codeblock {
  position: relative; border: 1px solid var(--line); border-radius: 6px;
  background: var(--bg-2); margin: 18px 0 26px; overflow: hidden;
}
.codeblock pre {
  padding: 18px 20px; overflow-x: auto; font-size: 13px; line-height: 1.7;
  color: var(--mut);
}
.codeblock .cb-label {
  position: absolute; top: 10px; right: 12px;
  font-size: 10.5px; letter-spacing: 0.18em; color: var(--dim); text-transform: uppercase;
}
.codeblock .c-grn { color: var(--grn); }
.codeblock .c-amb { color: var(--amb); }
.codeblock .c-ink { color: var(--ink); }
.codeblock .c-dim { color: var(--dim); font-style: italic; }

.docs-table { width: 100%; border-collapse: collapse; margin: 18px 0 26px; font-size: 13px; }
.docs-table th {
  text-align: left; font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--grn); padding: 10px 14px; border-bottom: 1px solid var(--line-hot); font-weight: 600;
}
.docs-table td { padding: 11px 14px; border-bottom: 1px dashed var(--line); color: var(--mut); }
.docs-table td:first-child { color: var(--ink); white-space: nowrap; }

.callout {
  border-left: 2px solid var(--grn); background: var(--grn-soft);
  padding: 14px 18px; border-radius: 0 4px 4px 0; margin: 18px 0 26px;
  font-size: 13.5px; color: var(--mut); max-width: 640px;
}
.callout strong { color: var(--grn); }

.endpoint {
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
  margin: 30px 0 8px;
}
.endpoint .verb {
  font-size: 12px; font-weight: 600; letter-spacing: 0.1em;
  padding: 3px 9px; border-radius: 3px;
}
.verb-post { background: var(--grn-soft); color: var(--grn); border: 1px solid var(--line-hot); }
.verb-get { background: rgba(255,180,84,0.1); color: var(--amb); border: 1px solid rgba(255,180,84,0.3); }
.verb-del { background: rgba(255,107,107,0.1); color: #ff6b6b; border: 1px solid rgba(255,107,107,0.3); }
.endpoint code { background: none; color: var(--ink); font-size: 15px; padding: 0; }

@media (max-width: 860px) {
  .docs-wrap { grid-template-columns: 1fr; padding-top: 90px; }
  .docs-side { position: static; display: flex; flex-wrap: wrap; gap: 2px 18px; border-bottom: 1px solid var(--line); padding-bottom: 18px; }
  .docs-side h4 { width: 100%; margin: 14px 0 6px; }
  .docs-side a { border-left: none; padding-left: 0; }
}