/* ============================================================
   Swarmboard — Kickstarter pre-launch landing page
   The local AI brain for your connected device fleet
   ============================================================ */

:root {
  /* Canvas — deep near-black, faintly cool/green to sit under teal */
  --bg:      #0A0E10;
  --bg-1:    #0F1417;
  --bg-2:    #161C20;
  --bg-3:    #1E262B;
  --line:    #232C31;
  --line-2:  #324047;

  /* Text */
  --text:    #EAF1F0;
  --muted:   #A4B3B2;
  --faint:   #6B7B7C;

  /* Brand — EdgeKVM teal */
  --teal:      #00C4B4;
  --teal-lo:   #00A89A;
  --teal-hi:   #3DEFDD;
  --teal-ink:  #04201D;
  --teal-glow: rgba(0, 196, 180, 0.35);

  /* Signals */
  --ok:    #00C4B4;
  --warn:  #E6B23C;
  --crit:  #F2603C;
  --idle:  #6B7B7C;

  --radius: 5px;
  --radius-lg: 10px;
  --maxw: 1240px;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Hanken Grotesk", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Circuit-trace grid texture, fading down the page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(0,196,180,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,196,180,0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 130% 70% at 50% 0%, black 0%, transparent 72%);
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; position: relative; z-index: 1; }

/* ---------- Typography ---------- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.02em; line-height: 1.05; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--teal); display: inline-block; }
.eyebrow.center { justify-content: center; }

a { color: inherit; text-decoration: none; }
.mono { font-family: var(--font-mono); }
.tl { color: var(--teal); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 14px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
  white-space: nowrap;
}
.btn .arr { transition: transform .2s ease; }
.btn:hover .arr { transform: translateX(3px); }
.btn-primary { background: var(--teal); color: var(--teal-ink); box-shadow: 0 0 0 0 var(--teal-glow); }
.btn-primary:hover { background: var(--teal-hi); transform: translateY(-1px); box-shadow: 0 10px 30px -8px var(--teal-glow); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }
.btn-sm { padding: 10px 16px; font-size: 13px; }
.btn-lg { padding: 17px 30px; font-size: 15px; }
.btn .ks { width: 15px; height: 15px; }

/* ---------- Nav ---------- */
header.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(10, 14, 16, 0.78);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, background .3s ease;
}
header.nav.scrolled { border-bottom-color: var(--line); background: rgba(10, 14, 16, 0.92); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--font-display); font-weight: 700; font-size: 19px; letter-spacing: -0.01em; }
.brand .mark { width: 28px; height: 28px; display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 1fr); gap: 3px; }
.brand .mark i { background: var(--faint); border-radius: 1.5px; transition: background .3s ease, transform .3s ease; }
.brand .mark i:nth-child(1), .brand .mark i:nth-child(5), .brand .mark i:nth-child(9) { background: var(--teal); }
.brand:hover .mark i { background: var(--teal); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 14.5px; color: var(--muted); transition: color .2s ease; white-space: nowrap; }
.nav-links a:hover { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: 14px; }

/* ---------- Hero ---------- */
.hero { padding: 76px 0 56px; position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 56px; align-items: center; }
.hero .badge { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em; color: var(--teal); background: rgba(0,196,180,0.08); border: 1px solid rgba(0,196,180,0.25); padding: 7px 13px; border-radius: 100px; margin-bottom: 24px; }
.hero .badge .pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 0 var(--teal-glow); animation: pulse 2.4s infinite; }
.hero h1 { font-size: clamp(40px, 5.2vw, 68px); }
.hero h1 .em { color: var(--teal); }
.hero .lede { font-size: 18.5px; color: var(--muted); margin-top: 24px; max-width: 32em; }
.hero .lede code { font-family: var(--font-mono); font-size: 0.92em; color: var(--text); background: var(--bg-2); padding: 1px 6px; border-radius: 4px; }
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; align-items: center; }
.hero-note { font-family: var(--font-mono); font-size: 12px; color: var(--faint); margin-top: 16px; }

@keyframes pulse { 0% { box-shadow: 0 0 0 0 var(--teal-glow); } 70% { box-shadow: 0 0 0 8px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
@media (prefers-reduced-motion: reduce) { .pulse { animation: none !important; } }

/* ---------- Hero media (device + dashboard mock placeholder) ---------- */
.device {
  position: relative;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: 0 50px 100px -50px rgba(0,0,0,0.85), 0 0 0 1px rgba(0,196,180,0.06);
}
.device::after {
  content: "HERO MEDIA · drop controller + ESP32 desk shot here";
  position: absolute; top: 10px; left: 14px;
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.08em;
  color: var(--faint); text-transform: uppercase; opacity: .55;
}
/* Dashboard mock that lives inside the device frame */
.dash { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-top: 18px; }
.dash-bar { display: flex; align-items: center; gap: 11px; padding: 11px 14px; border-bottom: 1px solid var(--line); }
.dash-bar .dots { display: flex; gap: 6px; }
.dash-bar .dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--bg-3); }
.dash-bar .url { font-family: var(--font-mono); font-size: 11.5px; color: var(--muted); }
.dash-bar .live { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--teal); }
.dash-bar .live .pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); animation: pulse 2.4s infinite; }
.dash-body { padding: 14px; }
.dash-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.dash-row .t { font-family: var(--font-mono); font-size: 12px; color: var(--text); }
.dash-row .sub { font-family: var(--font-mono); font-size: 10.5px; color: var(--faint); }
.fleet-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; }
.chip-dev { background: var(--bg-1); border: 1px solid var(--line); border-radius: 4px; padding: 9px; display: flex; flex-direction: column; gap: 7px; transition: border-color .25s ease, transform .25s ease; }
.chip-dev:hover { border-color: var(--line-2); transform: translateY(-2px); }
.chip-dev .h { display: flex; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 10px; color: var(--muted); }
.chip-dev .h .d { width: 6px; height: 6px; border-radius: 50%; }
.d.ok { background: var(--ok); } .d.warn { background: var(--warn); } .d.idle { background: var(--idle); } .d.crit { background: var(--crit); }
.chip-dev .bars { display: flex; gap: 2.5px; align-items: flex-end; height: 18px; }
.chip-dev .bars span { flex: 1; background: var(--bg-3); border-radius: 1px; transition: height .5s ease; }
.chip-dev .bars span.a { background: var(--teal-lo); }
.chip-dev .v { font-family: var(--font-mono); font-size: 9px; color: var(--faint); }
.dash-foot { display: flex; gap: 8px; margin-top: 12px; }
.dash-foot .pill { flex: 1; text-align: center; font-family: var(--font-mono); font-size: 10px; padding: 7px; border-radius: 4px; border: 1px solid var(--line); color: var(--muted); }
.dash-foot .pill.go { background: rgba(0,196,180,0.12); border-color: rgba(0,196,180,0.4); color: var(--teal); }

/* ---------- Section scaffold ---------- */
section { position: relative; z-index: 1; }
.section-pad { padding: 100px 0; }
.section-head { max-width: 680px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(30px, 3.8vw, 48px); margin: 18px 0 0; }
.section-head p { color: var(--muted); font-size: 18px; margin-top: 18px; }

/* ---------- Problem block ---------- */
.problem { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: linear-gradient(180deg, var(--bg-1), var(--bg)); }
.problem-inner { max-width: 880px; margin: 0 auto; text-align: center; padding: 90px 0; }
.problem .lead { font-family: var(--font-display); font-size: clamp(24px, 3vw, 36px); font-weight: 500; line-height: 1.32; letter-spacing: -0.015em; }
.problem .lead .dim { color: var(--faint); }
.problem .turn { display: block; margin-top: 22px; color: var(--teal); }
.problem .steps-mono { font-family: var(--font-mono); font-size: 13px; color: var(--faint); margin-top: 28px; letter-spacing: 0.02em; }
.problem .steps-mono span { color: var(--muted); }

/* ---------- Proof points (What it is) ---------- */
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.proof { background: var(--bg); padding: 32px 28px 36px; display: flex; flex-direction: column; gap: 14px; transition: background .25s ease; }
.proof:hover { background: var(--bg-1); }
.proof .ic { width: 38px; height: 38px; border: 1px solid var(--line-2); border-radius: var(--radius); display: grid; place-items: center; color: var(--teal); }
.proof .ic svg { width: 19px; height: 19px; }
.proof h3 { font-size: 20px; font-weight: 600; }
.proof p { color: var(--muted); font-size: 15.5px; line-height: 1.62; }
.proof p code { font-family: var(--font-mono); font-size: 0.9em; color: var(--text); background: var(--bg-2); padding: 1px 5px; border-radius: 3px; }

/* ---------- AI swarm ---------- */
.swarm { background: linear-gradient(180deg, var(--bg), var(--bg-1)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.swarm-grid { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 56px; align-items: center; }
.swarm-copy .turn { font-family: var(--font-display); font-size: clamp(22px, 2.5vw, 30px); font-weight: 500; line-height: 1.3; letter-spacing: -0.015em; margin-top: 18px; }
.swarm-copy .turn .a { color: var(--faint); }
.swarm-copy .turn .b { color: var(--teal); }
.swarm-copy p { color: var(--muted); font-size: 16.5px; margin-top: 20px; }
.swarm-copy .byo { margin-top: 22px; font-size: 15px; color: var(--muted); border-left: 2px solid var(--teal); padding-left: 16px; }
.swarm-copy .byo code { font-family: var(--font-mono); font-size: 0.88em; color: var(--text); background: var(--bg-2); padding: 1px 6px; border-radius: 3px; }

/* Chat UI */
.chat { background: var(--bg-1); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 40px 90px -50px rgba(0,0,0,0.85); }
.chat-bar { display: flex; align-items: center; gap: 11px; padding: 13px 16px; border-bottom: 1px solid var(--line); background: var(--bg); }
.chat-bar .dots { display: flex; gap: 6px; }
.chat-bar .dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--bg-3); }
.chat-bar .title { font-family: var(--font-mono); font-size: 12px; color: var(--muted); }
.chat-bar .agent { margin-left: auto; font-family: var(--font-mono); font-size: 10.5px; color: var(--teal); }
.chat-body { padding: 18px; display: flex; flex-direction: column; gap: 16px; }
.msg { max-width: 92%; }
.msg.you { align-self: flex-end; }
.msg.you .bubble { background: rgba(0,196,180,0.1); border: 1px solid rgba(0,196,180,0.28); color: var(--text); border-radius: 10px 10px 2px 10px; }
.msg.bot .bubble { background: var(--bg); border: 1px solid var(--line); color: var(--muted); border-radius: 10px 10px 10px 2px; }
.msg .who { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--faint); margin-bottom: 6px; }
.msg.you .who { text-align: right; color: var(--teal); }
.msg .bubble { padding: 12px 15px; font-size: 14.5px; line-height: 1.55; }
.msg .bubble .mono-out { font-family: var(--font-mono); font-size: 12.5px; }
.msg .bubble .mono-out .ok { color: var(--ok); }
.msg .bubble .mono-out .warn { color: var(--warn); }
.chat-input { display: flex; align-items: center; gap: 10px; padding: 13px 16px; border-top: 1px solid var(--line); background: var(--bg); }
.chat-input .field { flex: 1; font-family: var(--font-mono); font-size: 13px; color: var(--faint); }
.chat-input .cursor { display: inline-block; width: 8px; height: 15px; background: var(--teal); vertical-align: middle; animation: blink 1.1s steps(1) infinite; margin-left: 2px; }
.chat-input .send { width: 30px; height: 30px; border-radius: 6px; background: var(--teal); display: grid; place-items: center; color: var(--teal-ink); }
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cursor { animation: none !important; } }

/* ---------- Trust cards (Local / no lock-in) ---------- */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tcard { background: var(--bg-1); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 26px; transition: border-color .25s ease, transform .25s ease; }
.tcard:hover { border-color: var(--line-2); transform: translateY(-3px); }
.tcard .k { font-family: var(--font-mono); font-size: 12px; color: var(--teal); letter-spacing: 0.04em; }
.tcard h3 { font-size: 21px; font-weight: 600; margin: 14px 0 12px; }
.tcard p { color: var(--muted); font-size: 15.5px; line-height: 1.6; }
.tcard p code { font-family: var(--font-mono); font-size: 0.9em; color: var(--text); background: var(--bg-2); padding: 1px 6px; border-radius: 3px; }

/* ---------- Open source band ---------- */
.oss { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-1); }
.oss-inner { display: grid; grid-template-columns: auto 1fr auto; gap: 40px; align-items: center; padding: 56px 0; }
.oss .badge-apache { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 22px 30px; border: 1px solid var(--line-2); border-radius: var(--radius-lg); background: var(--bg); }
.oss .badge-apache b { font-family: var(--font-display); font-size: 32px; font-weight: 600; color: var(--teal); letter-spacing: -0.02em; }
.oss .badge-apache span { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); }
.oss-copy h2 { font-size: clamp(26px, 3vw, 38px); }
.oss-copy p { color: var(--muted); font-size: 17px; margin-top: 14px; max-width: 40em; }
.oss-copy p b { color: var(--text); font-weight: 600; }
.oss .components { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.oss .components span { font-family: var(--font-mono); font-size: 11.5px; color: var(--muted); border: 1px solid var(--line); border-radius: 100px; padding: 6px 13px; }

/* ---------- Who it's for ---------- */
.who-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.who { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px 26px; background: var(--bg); transition: border-color .25s ease; }
.who:hover { border-color: var(--teal); }
.who .ic { width: 34px; height: 34px; color: var(--teal); margin-bottom: 18px; }
.who .ic svg { width: 34px; height: 34px; }
.who h3 { font-size: 18px; font-weight: 600; }
.who p { color: var(--muted); font-size: 15px; margin-top: 10px; line-height: 1.58; }

/* ---------- Closing CTA ---------- */
.close-cta { position: relative; overflow: hidden; }
.cta-box { border: 1px solid rgba(0,196,180,0.25); border-radius: var(--radius-lg); padding: 72px 56px; text-align: center; position: relative; overflow: hidden;
  background: radial-gradient(ellipse 70% 130% at 50% 0%, rgba(0,196,180,0.14), transparent 62%), var(--bg-1); }
.cta-box h2 { font-size: clamp(32px, 4.2vw, 56px); }
.cta-box p { color: var(--muted); font-size: 18px; margin: 18px auto 0; max-width: 36em; }
.cta-actions { display: flex; gap: 14px; justify-content: center; margin-top: 36px; flex-wrap: wrap; }
.tagline { font-family: var(--font-display); font-size: clamp(20px, 2.4vw, 28px); font-weight: 500; margin-top: 48px; letter-spacing: -0.01em; }
.tagline .tl { color: var(--teal); }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line); padding: 56px 0 40px; }
.foot-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.foot-brand .brand { margin-bottom: 14px; }
.foot-brand p { color: var(--faint); font-size: 14px; max-width: 26em; }
.foot-links { display: flex; gap: 56px; flex-wrap: wrap; }
.foot-col h4 { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); margin-bottom: 14px; font-weight: 500; }
.foot-col a { display: block; color: var(--muted); font-size: 14.5px; padding: 5px 0; transition: color .2s ease; }
.foot-col a:hover { color: var(--teal); }
.foot-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); font-family: var(--font-mono); font-size: 12px; color: var(--faint); flex-wrap: wrap; gap: 12px; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1 !important; transform: none !important; transition: none !important; } }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .swarm-grid { grid-template-columns: 1fr; gap: 40px; }
  .proof-grid { grid-template-columns: 1fr; }
  .cards-3 { grid-template-columns: 1fr; }
  .who-grid { grid-template-columns: 1fr; }
  .oss-inner { grid-template-columns: 1fr; gap: 28px; text-align: center; }
  .oss .badge-apache { justify-self: center; }
  .oss .components { justify-content: center; }
}
@media (max-width: 1000px) {
  .nav-links { display: none; }
  .nav-cta .btn-ghost { display: none; }
}
@media (max-width: 900px) {
  .nav-links { display: none; }
}
@media (max-width: 720px) {
  .wrap { padding: 0 20px; }
  .section-pad { padding: 68px 0; }
  .fleet-grid { grid-template-columns: repeat(3, 1fr); }
  .problem-inner { padding: 60px 0; }
  .foot-links { gap: 32px; }
}