/* ============================================================
   AgentPulse — official site
   Dark "operations cockpit" + a single teal PULSE signal.
   ============================================================ */

:root {
  --bg: #06090c;
  --bg-soft: #0a1014;
  --surface: rgba(255, 255, 255, 0.025);
  --surface-2: rgba(255, 255, 255, 0.045);
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.15);

  --ink: #eaf2ef;
  --muted: #93a2a4;
  --faint: #6a7679;

  /* the pulse — the brand's living teal signal */
  --pulse: #2dd4bf;
  --pulse-2: #14b8a6;
  --pulse-deep: #0d9488;
  --pulse-ink: #062b26;
  --glow: rgba(45, 212, 191, 0.32);

  --display: 'Bricolage Grotesque', ui-sans-serif, system-ui, sans-serif;
  --body: 'Hanken Grotesk', ui-sans-serif, system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --maxw: 1140px;
  --radius: 18px;

  /* z-scale */
  --z-canvas: 0;
  --z-base: 1;
  --z-nav: 50;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.006em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

a { color: inherit; text-decoration: none; }
em { font-style: normal; color: var(--pulse); }
strong { color: var(--ink); font-weight: 600; }

section { position: relative; z-index: var(--z-base); }

/* ── shared layout ── */
.hero-inner,
.manifesto,
.how,
.features,
.compare,
.who,
.oss-inner,
.faq,
.cta-inner,
.section-head {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

.section-head { text-align: center; margin-bottom: clamp(36px, 6vw, 68px); }
.section-head h2 {
  font-size: clamp(1.9rem, 4.4vw, 3.2rem);
}
.section-head p {
  max-width: 60ch;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
}

/* ============================================================
   Background: pulse canvas + aurora glow
   ============================================================ */
#pulse-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-canvas);
  opacity: 0.55;
  pointer-events: none;
}
.aurora {
  position: fixed;
  top: -22vh;
  left: 50%;
  transform: translateX(-50%);
  width: min(1200px, 130vw);
  height: 80vh;
  z-index: var(--z-canvas);
  pointer-events: none;
  background:
    radial-gradient(60% 60% at 50% 30%, var(--glow), transparent 70%),
    radial-gradient(40% 50% at 25% 20%, rgba(20, 184, 166, 0.18), transparent 70%);
  filter: blur(30px);
  opacity: 0.9;
  animation: drift 16s var(--ease) infinite alternate;
}
@keyframes drift {
  from { transform: translateX(-52%) translateY(0) scale(1); }
  to { transform: translateX(-48%) translateY(24px) scale(1.08); }
}

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px clamp(20px, 5vw, 40px);
  transition: padding 0.4s var(--ease);
}
.nav.scrolled {
  padding-block: 10px;
}
.nav.scrolled::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(6, 9, 12, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  z-index: -1;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.02em; }
.brand-word { font-family: var(--display); font-size: 1.15rem; }
.brand-mark {
  position: relative;
  width: 26px; height: 26px; border-radius: 8px;
  background: linear-gradient(150deg, var(--pulse-2), var(--pulse-deep));
  display: grid; place-items: center;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.08), 0 0 18px var(--glow);
}
.brand-mark.small { width: 22px; height: 22px; }
.brand-mark svg { width: 16px; height: 16px; }
.brand-mark.small svg { width: 13px; height: 13px; }
.brand-mark-dot {
  transform-origin: center;
  transform-box: fill-box;
  animation: checkpoint-blink 2.6s var(--ease) infinite;
}
@keyframes checkpoint-blink {
  0%, 100% { opacity: 0.85; }
  50% { opacity: 1; filter: drop-shadow(0 0 3px rgba(238,244,242,.8)); }
}
.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a { color: var(--muted); font-size: 0.95rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { display: flex; align-items: center; gap: 12px; }

/* buttons */
.solid, .ghost {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--body); font-weight: 600; font-size: 0.95rem;
  padding: 10px 18px; border-radius: 12px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.2s, border-color 0.2s;
  cursor: pointer; white-space: nowrap;
}
.solid {
  background: linear-gradient(150deg, var(--pulse), var(--pulse-deep));
  color: var(--pulse-ink);
  box-shadow: 0 6px 24px -8px var(--glow), inset 0 1px 0 rgba(255,255,255,0.3);
}
.solid:hover { transform: translateY(-2px); box-shadow: 0 12px 34px -8px var(--glow), inset 0 1px 0 rgba(255,255,255,0.3); }
.ghost {
  color: var(--ink);
  border: 1px solid var(--line-2);
  background: var(--surface);
}
.ghost:hover { border-color: var(--pulse-2); color: var(--pulse); transform: translateY(-2px); }
.lg { padding: 14px 26px; font-size: 1.02rem; border-radius: 14px; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  min-height: min(92vh, 860px);
  display: flex;
  align-items: center;
  padding-block: clamp(60px, 12vh, 130px);
}
.hero-inner { text-align: center; }
.status {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.02em;
  color: var(--muted);
  padding: 7px 15px; border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
}
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--pulse);
  box-shadow: 0 0 0 0 var(--glow);
  animation: ping 2s var(--ease) infinite;
}
@keyframes ping {
  0% { box-shadow: 0 0 0 0 var(--glow); }
  70% { box-shadow: 0 0 0 9px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.hero h1 {
  margin-top: 26px;
  font-size: clamp(2.6rem, 7.2vw, 5.4rem);
  font-weight: 800;
}
.hero h1 .grad { color: var(--pulse); }
.lede {
  max-width: 62ch;
  margin: 26px auto 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.6;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.hero-chips {
  list-style: none; display: flex; gap: 10px 22px; justify-content: center; flex-wrap: wrap;
  margin-top: 30px; color: var(--faint); font-size: 0.9rem;
}
.hero-chips li { display: flex; align-items: center; gap: 8px; }
.hero-chips li::before { content: '✓'; color: var(--pulse-2); font-weight: 700; }

/* ============================================================
   Manifesto
   ============================================================ */
.manifesto {
  padding-block: clamp(60px, 12vw, 120px);
  text-align: center;
}
.manifesto p {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.5rem, 3.8vw, 2.6rem);
  line-height: 1.28;
  letter-spacing: -0.025em;
  max-width: 22ch;
  margin-inline: auto;
  text-wrap: balance;
  color: var(--faint);
}
.manifesto .hl { color: var(--ink); }

/* ============================================================
   How it works — live chat + loop
   ============================================================ */
.how { padding-block: clamp(40px, 8vw, 80px); }
.how-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.chat {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  overflow: hidden;
  box-shadow: 0 30px 80px -40px rgba(0, 0, 0, 0.9);
  position: sticky;
  top: 90px;
}
.chat-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
}
.chat-title { font-family: var(--mono); font-size: 0.86rem; color: var(--muted); }
.chat-live { display: inline-flex; align-items: center; gap: 7px; font-size: 0.78rem; color: var(--faint); }
.chat-live .dot { width: 6px; height: 6px; }
.chat-body {
  padding: 18px;
  min-height: 420px;
  display: flex; flex-direction: column; gap: 14px;
}
.msg {
  display: flex; gap: 11px; align-items: flex-start;
  opacity: 0; transform: translateY(8px);
  animation: msg-in 0.5s var(--ease) forwards;
}
@keyframes msg-in { to { opacity: 1; transform: none; } }
.msg-av {
  flex-shrink: 0; width: 30px; height: 30px; border-radius: 9px;
  display: grid; place-items: center; font-size: 0.8rem; font-weight: 700;
  color: #fff;
}
.msg-main { min-width: 0; }
.msg-name { font-size: 0.78rem; color: var(--muted); margin-bottom: 3px; }
.msg-name b { color: var(--ink); font-weight: 600; margin-right: 6px; }
.msg-text {
  font-size: 0.94rem; line-height: 1.5;
  background: var(--surface-2); border: 1px solid var(--line);
  padding: 9px 13px; border-radius: 4px 13px 13px 13px; color: #d7e2e0;
}
.msg.me { flex-direction: row-reverse; }
.msg.me .msg-main { text-align: right; }
.msg.me .msg-text {
  background: rgba(45, 212, 191, 0.12);
  border-color: rgba(45, 212, 191, 0.28);
  border-radius: 13px 4px 13px 13px;
  color: #d8f5ef;
}
.typing { display: inline-flex; gap: 4px; padding: 4px 2px; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--faint); animation: blink 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: 0.2s; }
.typing i:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink { 0%, 60%, 100% { opacity: 0.25; } 30% { opacity: 1; } }

/* consensus / approval cards inside chat */
.card {
  border-radius: 14px; padding: 14px 16px; font-size: 0.9rem;
  opacity: 0; transform: translateY(8px); animation: msg-in 0.5s var(--ease) forwards;
}
.card.brief { border: 1px solid rgba(45,212,191,0.4); background: rgba(45,212,191,0.06); }
.card.approve { border: 1px solid rgba(217,160,60,0.45); background: rgba(217,160,60,0.08); }
.card-h { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.card.brief .card-h { color: var(--pulse); }
.card.approve .card-h { color: #e7 b36b; color: #e8b46b; }
.card-row { color: var(--muted); margin: 3px 0; }
.card-row b { color: #cdd8d6; font-weight: 600; }
.card-actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.mini { font-size: 0.8rem; font-weight: 600; padding: 6px 12px; border-radius: 9px; }
.mini.p { background: var(--pulse); color: var(--pulse-ink); }
.mini.s { background: transparent; border: 1px solid var(--line-2); color: var(--muted); }

/* loop steps */
.loop { list-style: none; display: flex; flex-direction: column; gap: 6px; counter-reset: step; }
.loop li {
  position: relative;
  padding: 22px 22px 22px 66px;
  border-radius: 14px;
  transition: background 0.3s;
}
.loop li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 20px; top: 22px;
  width: 30px; height: 30px; border-radius: 9px;
  display: grid; place-items: center;
  font-family: var(--mono); font-size: 0.85rem; font-weight: 600;
  color: var(--pulse); background: rgba(45,212,191,0.1); border: 1px solid rgba(45,212,191,0.3);
}
.loop li:not(:last-child)::after {
  content: ''; position: absolute; left: 35px; top: 54px; bottom: -2px;
  width: 1px; background: linear-gradient(var(--line-2), transparent);
}
.loop li:hover { background: var(--surface); }
.loop h3 { font-size: 1.15rem; margin-bottom: 5px; }
.loop p { color: var(--muted); font-size: 0.98rem; }

/* ============================================================
   Features
   ============================================================ */
.features { padding-block: clamp(70px, 12vw, 130px); }
.feature-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.feat {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 28px;
  transition: transform 0.35s var(--ease), border-color 0.35s, background 0.35s;
}
.feat:hover { transform: translateY(-4px); border-color: var(--line-2); background: var(--surface-2); }
.feat-lead {
  grid-column: span 1;
  background: linear-gradient(165deg, rgba(45,212,191,0.1), var(--surface));
  border-color: rgba(45,212,191,0.28);
  grid-row: span 2;
  display: flex; flex-direction: column;
}
.feat-icon {
  width: 46px; height: 46px; border-radius: 13px;
  display: grid; place-items: center; font-size: 1.4rem;
  background: rgba(45,212,191,0.12); color: var(--pulse);
  border: 1px solid rgba(45,212,191,0.25);
  margin-bottom: 18px;
}
.feat h3 { font-size: 1.25rem; margin-bottom: 9px; }
.feat p { color: var(--muted); font-size: 0.98rem; }
.feat-lead h3 { font-size: 1.5rem; }
.feat-lead p { font-size: 1.05rem; }

/* ============================================================
   Compare table
   ============================================================ */
.compare { padding-block: clamp(40px, 8vw, 90px); }
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th, td { padding: 16px 18px; text-align: left; font-size: 0.96rem; vertical-align: middle; }
thead th { font-family: var(--display); font-weight: 600; font-size: 0.98rem; color: var(--muted); border-bottom: 1px solid var(--line); }
thead th span { display: block; font-family: var(--body); font-weight: 400; font-size: 0.78rem; color: var(--faint); }
thead th.us, td.us { background: rgba(45,212,191,0.06); }
thead th.us { color: var(--pulse); }
tbody th { font-weight: 600; color: #cdd8d6; }
tbody td { color: var(--muted); border-bottom: 1px solid var(--line); }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: none; }
td.us { color: var(--ink); font-weight: 500; }
.yes { color: var(--pulse); font-weight: 700; margin-right: 4px; }
.no { color: #d16a6a; margin-right: 4px; }
.mid { color: #d9a03c; margin-right: 4px; }

/* ============================================================
   Audience
   ============================================================ */
.who { padding-block: clamp(60px, 10vw, 120px); }
.who-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px;
}
.who-grid > div {
  padding: 26px; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--surface);
  transition: border-color 0.3s, transform 0.3s var(--ease);
}
.who-grid > div:hover { border-color: rgba(45,212,191,0.3); transform: translateY(-3px); }
.who-grid h3 { font-size: 1.2rem; margin-bottom: 8px; color: var(--pulse); }
.who-grid p { color: var(--muted); font-size: 0.96rem; }

/* ============================================================
   Open source
   ============================================================ */
.oss { padding-block: clamp(60px, 10vw, 120px); }
.oss-inner {
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: clamp(40px, 6vw, 72px);
  background:
    radial-gradient(80% 120% at 50% 0%, rgba(45,212,191,0.08), transparent 70%),
    var(--surface);
}
.oss-inner h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
.oss-inner > p { max-width: 60ch; margin: 18px auto 26px; color: var(--muted); font-size: 1.08rem; }
.oss-inner a { color: var(--pulse); text-decoration: underline; text-underline-offset: 3px; }
.stack { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 30px; }
.stack span {
  font-family: var(--mono); font-size: 0.82rem; color: var(--muted);
  padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg-soft);
}
.oss-inner .ghost { text-decoration: none; }

/* ============================================================
   FAQ
   ============================================================ */
.faq { padding-block: clamp(50px, 9vw, 100px); }
.faq-list { max-width: 780px; margin-inline: auto; display: flex; flex-direction: column; gap: 10px; }
details {
  border: 1px solid var(--line); border-radius: 14px; background: var(--surface);
  overflow: hidden; transition: border-color 0.3s, background 0.3s;
}
details[open] { border-color: var(--line-2); background: var(--surface-2); }
summary {
  cursor: pointer; list-style: none; padding: 18px 22px;
  font-family: var(--display); font-weight: 600; font-size: 1.08rem;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: '+'; color: var(--pulse); font-size: 1.4rem; font-weight: 400;
  transition: transform 0.3s var(--ease); flex-shrink: 0;
}
details[open] summary::after { transform: rotate(45deg); }
details p { padding: 0 22px 20px; color: var(--muted); font-size: 1rem; max-width: 68ch; }

/* ============================================================
   CTA
   ============================================================ */
.cta { padding-block: clamp(70px, 12vw, 140px); text-align: center; }
.cta-inner h2 { font-size: clamp(2rem, 5.5vw, 3.6rem); }
.cta-inner > p { color: var(--muted); margin: 18px auto 30px; font-size: 1.15rem; }
.clone {
  display: inline-block; margin-top: 26px;
  font-family: var(--mono); font-size: 0.86rem; color: var(--muted);
  padding: 12px 18px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg-soft);
  user-select: all;
}

/* ============================================================
   Footer
   ============================================================ */
.foot {
  border-top: 1px solid var(--line);
  padding: clamp(40px, 6vw, 64px) clamp(20px, 5vw, 40px);
  max-width: var(--maxw); margin-inline: auto;
  text-align: center; display: flex; flex-direction: column; align-items: center; gap: 14px;
}
.foot-brand { display: inline-flex; align-items: center; gap: 9px; font-family: var(--display); font-weight: 700; }
.foot p { color: var(--muted); }
.foot-links { display: flex; gap: 22px; }
.foot-links a { color: var(--muted); font-size: 0.94rem; transition: color 0.2s; }
.foot-links a:hover { color: var(--pulse); }
.foot small { color: var(--faint); font-size: 0.82rem; }

/* ============================================================
   Reveal (default-visible; JS opts in to the animation)
   ============================================================ */
.js [data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.js [data-reveal].in { opacity: 1; transform: none; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .how-grid { grid-template-columns: 1fr; }
  .chat { position: static; }
  .feature-list { grid-template-columns: repeat(2, 1fr); }
  .feat-lead { grid-row: span 1; grid-column: span 2; }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .feature-list { grid-template-columns: 1fr; }
  .feat-lead { grid-column: span 1; }
  .nav-cta .ghost { display: none; }
  .hero h1 br { display: none; }
}

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
  #pulse-canvas { display: none; }
  .aurora { opacity: 0.6; }
}