/* Fieldline Robotics — shared styles */
:root {
  --bg: #07080A;
  --bg-2: #0B0D0F;
  --panel: #101215;
  --panel-2: #15181C;
  --line: rgba(237, 238, 234, 0.09);
  --line-2: rgba(237, 238, 234, 0.18);
  --text: #EDEEEA;
  --muted: #A0A69F;
  --dim: #6E746D;
  --accent: #FF5B1F;
  --accent-2: #FF8A5C;
  --accent-soft: rgba(255, 91, 31, 0.12);
  --ok: #46D99B;
  --warn: #F2B544;
  --max: 1200px;
  --radius: 16px;
  --sans: "Inter Tight", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
/* Blueprint grid, faded toward the edges */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 85%);
  opacity: .55;
}
a { color: inherit; }
img, svg, canvas { display: block; }
::selection { background: var(--accent); color: #000; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.mono { font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.muted { color: var(--muted); }
.accent { color: var(--accent); }
.placeholder { color: var(--warn); font-family: var(--mono); font-size: 13px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7, 8, 10, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; letter-spacing: .06em; font-size: 15px; }
.logo span { font-weight: 500; color: var(--muted); letter-spacing: .02em; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { text-decoration: none; font-size: 14.5px; color: var(--muted); transition: color .15s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-links a[aria-current="page"]::after { content: ""; display: block; height: 1px; background: var(--accent); margin-top: 3px; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line-2); color: var(--text); border-radius: 10px; width: 42px; height: 38px; cursor: pointer; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 20px; border-radius: 10px;
  font-weight: 600; font-size: 15px; text-decoration: none; cursor: pointer;
  border: 1px solid var(--line-2); color: var(--text); background: rgba(255,255,255,0.02);
  transition: transform .15s ease, border-color .15s ease, background .15s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-1px); border-color: var(--text); }
.btn.primary {
  background: var(--accent); color: #0A0A0A; border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(255,91,31,.4), 0 8px 30px -8px rgba(255,91,31,.7);
}
.btn.primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
.btn.small { padding: 9px 14px; font-size: 14px; }
.btn .arrow { transition: transform .15s; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Eyebrow & headings ---------- */
.eyebrow { display: inline-flex; align-items: center; gap: 10px; color: var(--muted); }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
h1, h2, h3, h4 { font-weight: 600; letter-spacing: -0.03em; }
h1 { font-size: clamp(44px, 6.6vw, 92px); line-height: .96; letter-spacing: -0.045em; }
h2 { font-size: clamp(32px, 4.2vw, 56px); line-height: 1.02; }
h3 { font-size: 24px; line-height: 1.15; letter-spacing: -0.02em; }
h4 { font-size: 18px; letter-spacing: -0.01em; }
.grad {
  background: linear-gradient(100deg, var(--text) 10%, var(--accent) 60%, var(--accent-2) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { font-size: 20px; color: var(--muted); max-width: 40ch; }

/* ---------- Sections ---------- */
section { padding: 112px 0; position: relative; }
section + section { border-top: 1px solid var(--line); }
.sec-head { display: grid; grid-template-columns: 240px 1fr; gap: 32px; margin-bottom: 56px; }
.sec-label { color: var(--dim); padding-top: 12px; display: flex; gap: 10px; }
.sec-label b { color: var(--accent); font-weight: 500; }
.sec-head p { color: var(--muted); font-size: 19px; max-width: 58ch; margin-top: 18px; }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 88px; border-bottom: 1px solid var(--line); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.hero .lede { margin: 28px 0 36px; }
.hero .eyebrow { margin-bottom: 28px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-glow { position: absolute; width: 700px; height: 700px; right: -200px; top: -200px; background: radial-gradient(circle, rgba(255,91,31,.18), transparent 60%); pointer-events: none; z-index: -1; }
.page-hero { padding: 96px 0 72px; border-bottom: 1px solid var(--line); position: relative; overflow: hidden; }
.page-hero h1 { font-size: clamp(40px, 5.6vw, 76px); max-width: 16ch; }
.page-hero .lede { margin: 24px 0 32px; max-width: 52ch; }

/* Capture viewport (hero canvas) */
.viewport {
  position: relative; aspect-ratio: 1 / .92; border: 1px solid var(--line-2); border-radius: 18px;
  background: radial-gradient(ellipse at 50% 60%, rgba(255,91,31,.07), transparent 65%), var(--bg-2);
  overflow: hidden;
}
.viewport canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hud { position: absolute; color: var(--dim); font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.hud.tl { top: 14px; left: 16px; } .hud.tr { top: 14px; right: 16px; text-align: right; }
.hud.bl { bottom: 14px; left: 16px; } .hud.br { bottom: 14px; right: 16px; text-align: right; }
.hud b { color: var(--accent); font-weight: 500; }
.corner { position: absolute; width: 18px; height: 18px; border-color: var(--accent); border-style: solid; opacity: .8; }
.corner.a { top: 8px; left: 8px; border-width: 1px 0 0 1px; } .corner.b { top: 8px; right: 8px; border-width: 1px 1px 0 0; }
.corner.c { bottom: 8px; left: 8px; border-width: 0 0 1px 1px; } .corner.d { bottom: 8px; right: 8px; border-width: 0 1px 1px 0; }

/* ---------- Marquee ---------- */
.marquee { border-bottom: 1px solid var(--line); overflow: hidden; padding: 18px 0; background: var(--bg-2); }
.marquee-track { display: flex; gap: 48px; width: max-content; animation: scroll 40s linear infinite; }
.marquee-track span { font-family: var(--mono); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); white-space: nowrap; display: flex; align-items: center; gap: 48px; }
.marquee-track span::after { content: "◆"; color: var(--accent); font-size: 9px; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* ---------- Cards ---------- */
.card {
  --mx: 50%; --my: 50%;
  position: relative; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px;
  background:
    radial-gradient(420px circle at var(--mx) var(--my), rgba(255,91,31,.09), transparent 45%),
    linear-gradient(180deg, rgba(255,255,255,.025), rgba(255,255,255,0)) , var(--panel);
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--line-2); }
.card .idx { color: var(--accent); }
.card p { color: var(--muted); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* Practice cards (home) */
.practice { padding: 40px; min-height: 100%; display: flex; flex-direction: column; }
.practice .top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 40px; }
.practice h3 { font-size: clamp(28px, 3vw, 38px); line-height: 1.04; letter-spacing: -0.03em; margin-bottom: 14px; }
.practice ul { list-style: none; margin: 28px 0 32px; border-top: 1px solid var(--line); }
.practice li { padding: 14px 0; border-bottom: 1px solid var(--line); display: flex; gap: 12px; color: var(--text); font-size: 16px; }
.practice li::before { content: "→"; color: var(--accent); font-family: var(--mono); }
.practice .btn { margin-top: auto; align-self: flex-start; }
.practice.featured { border-color: rgba(255,91,31,.35); box-shadow: 0 0 0 1px rgba(255,91,31,.08), 0 30px 80px -40px rgba(255,91,31,.45); }

/* Status chips */
.chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 5px 10px; border-radius: 999px;
  font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  border: 1px solid var(--line-2); color: var(--muted); white-space: nowrap;
}
.chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--dim); }
.chip.ok { color: var(--ok); border-color: rgba(70,217,155,.3); } .chip.ok::before { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.chip.pipe { color: var(--warn); border-color: rgba(242,181,68,.3); border-style: dashed; } .chip.pipe::before { background: var(--warn); }
.chip.req { color: var(--muted); }
.chip.hot { color: var(--accent); border-color: rgba(255,91,31,.35); } .chip.hot::before { background: var(--accent); }

/* Data stack tiles */
.stack { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.tile { background: var(--panel); padding: 26px 24px 24px; display: flex; flex-direction: column; gap: 14px; min-height: 230px; position: relative; transition: background .2s; }
.tile:hover { background: var(--panel-2); }
.tile .row { display: flex; justify-content: space-between; align-items: center; }
.tile .ico { width: 36px; height: 36px; color: var(--accent); }
.tile h4 { font-size: 19px; }
.tile p { color: var(--muted); font-size: 14.5px; }
.tile .buyers { margin-top: auto; padding-top: 12px; border-top: 1px dashed var(--line-2); color: var(--dim); font-size: 12.5px; }
.tile .buyers b { color: var(--muted); font-weight: 500; }

/* Loop diagram */
.loop-wrap { border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); padding: 28px 28px 8px; }
.loop-svg { width: 100%; height: auto; }
.loop-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 28px; }
.loop-steps .s { border-top: 1px solid var(--line-2); padding-top: 18px; }
.loop-steps .s .mono { color: var(--accent); display: block; margin-bottom: 10px; }
.loop-steps .s p { color: var(--muted); font-size: 15.5px; }
.loop-steps .s.key { border-top-color: var(--accent); }

/* Lists / tables */
.spec { width: 100%; border-collapse: collapse; font-size: 15.5px; }
.spec th { text-align: left; font-family: var(--mono); font-weight: 400; font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); padding: 0 16px 14px 0; border-bottom: 1px solid var(--line-2); }
.spec td { padding: 18px 16px 18px 0; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--muted); }
.spec td:first-child { color: var(--text); font-weight: 600; }
.spec tr:hover td { background: rgba(255,255,255,.015); }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.tag { border: 1px solid var(--line-2); border-radius: 999px; padding: 9px 16px; font-size: 15px; color: var(--text); background: rgba(255,255,255,.02); }
.tag.off { color: var(--dim); border-style: dashed; }

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: s; }
.steps.four { grid-template-columns: repeat(4, 1fr); }
.step { border-top: 2px solid var(--line-2); padding-top: 18px; position: relative; }
.step::before { counter-increment: s; content: "0" counter(s); font-family: var(--mono); font-size: 12px; color: var(--accent); display: block; margin-bottom: 12px; letter-spacing: .08em; }
.step h4 { margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 15px; }

.statement { font-size: clamp(30px, 4.4vw, 60px); line-height: 1.04; letter-spacing: -0.035em; font-weight: 600; max-width: 18ch; }
.statement span { color: var(--dim); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.kv { list-style: none; }
.kv li { display: grid; grid-template-columns: 28px 1fr; gap: 8px; padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.kv li::before { content: "✓"; color: var(--ok); font-family: var(--mono); }
.kv.no li::before { content: "✕"; color: var(--dim); }
.kv li b { color: var(--text); font-weight: 600; }

/* Founder placeholder */
.founder { display: grid; grid-template-columns: 160px 1fr; gap: 32px; align-items: center; }
.avatar { width: 160px; height: 160px; border-radius: 16px; border: 1px dashed var(--line-2); display: grid; place-items: center; color: var(--dim); background: repeating-linear-gradient(45deg, transparent 0 8px, rgba(255,255,255,.02) 8px 16px); }

/* CTA band */
.cta-band { text-align: left; overflow: hidden; }
.cta-band .inner { border: 1px solid rgba(255,91,31,.3); border-radius: 24px; padding: 72px 56px; position: relative; overflow: hidden;
  background: radial-gradient(ellipse at 100% 0%, rgba(255,91,31,.22), transparent 55%), var(--panel); }
.cta-band h2 { max-width: 14ch; }
.cta-band p { color: var(--muted); font-size: 19px; max-width: 52ch; margin: 18px 0 32px; }

/* Forms */
.form { display: grid; gap: 18px; max-width: 640px; }
.form label { display: grid; gap: 8px; font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.form input, .form select, .form textarea {
  font: inherit; font-family: var(--sans); font-size: 16px; text-transform: none; letter-spacing: 0;
  background: var(--panel); color: var(--text); border: 1px solid var(--line-2); border-radius: 10px; padding: 13px 14px; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.form textarea { min-height: 140px; resize: vertical; }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 56px 0 40px; background: var(--bg-2); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.foot-grid h5 { font-family: var(--mono); font-weight: 400; font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); margin-bottom: 14px; }
.foot-grid ul { list-style: none; display: grid; gap: 8px; }
.foot-grid a { text-decoration: none; color: var(--muted); font-size: 15px; }
.foot-grid a:hover { color: var(--text); }
.foot-base { margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--dim); font-size: 13px; }

/* Reveal on scroll (only when JS is running) */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.in { opacity: 1; transform: none; }

/* Mockup banner */
.mock-banner { background: var(--accent); color: #0A0A0A; text-align: center; font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; padding: 7px 16px; }

@media (prefers-reduced-motion: reduce) {
  .marquee-track, .eyebrow .dot { animation: none; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .stack { grid-template-columns: repeat(2, 1fr); }
  .grid-4, .loop-steps, .steps.four { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .nav-toggle { display: inline-grid; place-items: center; }
  .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg-2); border-bottom: 1px solid var(--line); padding: 8px 24px 20px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .nav-links a[aria-current="page"]::after { display: none; }
  .nav-links .btn { margin-top: 16px; justify-content: center; border-bottom: 1px solid var(--accent); }
  .hero-grid, .grid-2, .split, .sec-head, .founder, .foot-grid { grid-template-columns: 1fr; }
  .sec-head { gap: 6px; margin-bottom: 36px; }
  section { padding: 80px 0; }
  .hero { padding: 48px 0 64px; }
  .practice { padding: 28px; }
  .cta-band .inner { padding: 48px 28px; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  body { font-size: 16px; }
  .stack, .grid-3, .grid-4, .loop-steps, .steps, .steps.four, .form .row2 { grid-template-columns: 1fr; }
  .tile { min-height: 0; }
  .lede { font-size: 18px; }
  .avatar { width: 120px; height: 120px; }
  .spec thead { display: none; }
  .spec tr { display: block; padding: 16px 0; border-bottom: 1px solid var(--line); }
  .spec td { display: block; border: 0; padding: 4px 0; }
}