/* Polson — polson.app  |  static marketing + legal site */

:root {
  --bg:        #0a0f1a;
  --bg-2:      #0d1424;
  --panel:     #111a2e;
  --line:      #1e2a44;
  --text:      #e9eef7;
  --muted:     #9aa8be;
  --faint:     #6b7a93;
  --teal:      #38c5ac;
  --blue:      #2f74c0;
  --accent:    #35b8c4;
  --grad:      linear-gradient(135deg, #38c5ac 0%, #2f74c0 100%);
  --radius:    18px;
  --maxw:      1080px;
  --font:      "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

a { color: inherit; text-decoration: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,15,26,0.72);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: -0.02em; font-size: 19px; }
.brand img { width: 34px; height: 34px; border-radius: 9px; display: block; }
/* The wordmark is the app's own lettering, so the brand is never set in a
   typeface the product doesn't ship. It is white-on-transparent artwork. */
.brand img.wm { width: auto; height: 16px; border-radius: 0; }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { color: var(--muted); font-size: 15px; transition: color .15s; }
.nav-links a:hover { color: var(--text); }
/* Below the breakpoint the nav carries too many links to sit on one line beside
   the wordmark, so the links drop to their own row and spread across it. */
@media (max-width: 620px){
  .nav .wrap { height: auto; flex-wrap: wrap; row-gap: 9px; padding-top: 11px; padding-bottom: 11px; }
  /* .hide-sm can leave only two links, and space-between then strands them
     at opposite edges — so pack them from the start instead. */
  .nav-links { width: 100%; gap: 20px; justify-content: flex-start; }
  .nav-links a { font-size: 14px; }
  .nav-links a.hide-sm { display:none; }
}

/* ---------- Hero ---------- */
.hero { position: relative; padding: 120px 0 90px; text-align: center; overflow: hidden; }
.hero .glow {
  position: absolute; inset: -20% -10% auto -10%; height: 620px; z-index: 0;
  background: radial-gradient(60% 60% at 50% 30%, rgba(56,197,172,0.16), transparent 70%),
              radial-gradient(50% 50% at 70% 20%, rgba(47,116,192,0.18), transparent 70%);
  filter: blur(10px); pointer-events: none;
}
.hero-mark { width: 96px; height: 96px; border-radius: 24px; display: inline-block; position: relative; z-index: 1;
  box-shadow: 0 20px 60px rgba(47,116,192,0.35); }
.hero h1 {
  position: relative; z-index: 1;
  font-size: clamp(40px, 8vw, 76px); line-height: 1.02; letter-spacing: -0.035em; font-weight: 800;
  margin: 30px 0 0;
}
.hero h1 .g { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .tag { position: relative; z-index:1; font-size: clamp(19px, 3.4vw, 26px); color: var(--text); font-weight: 600; margin-top: 22px; letter-spacing: -0.01em; }
.hero .sub { position: relative; z-index:1; max-width: 640px; margin: 18px auto 0; color: var(--muted); font-size: 18px; }
.pill {
  position: relative; z-index:1; display: inline-flex; align-items: center; gap: 9px; margin-top: 34px;
  padding: 11px 20px; border: 1px solid var(--line); border-radius: 999px; background: var(--panel);
  color: var(--muted); font-size: 14.5px; font-weight: 600;
}
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 12px var(--teal); }

/* ---------- Sections ---------- */
section { position: relative; }
.band { padding: 84px 0; border-top: 1px solid var(--line); }
.eyebrow { text-transform: uppercase; letter-spacing: .16em; font-size: 12.5px; font-weight: 700; color: var(--teal); }
.band h2 { font-size: clamp(28px, 5vw, 42px); letter-spacing: -0.03em; font-weight: 800; margin: 14px 0 0; max-width: 720px; }
.band .lead { color: var(--muted); font-size: 18px; max-width: 660px; margin: 18px 0 0; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 46px; }
@media (max-width: 860px){ .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px){ .grid { grid-template-columns: 1fr; } }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; transition: transform .18s ease, border-color .18s ease;
}
.card:hover { transform: translateY(-3px); border-color: #2b3c60; }
.card .k { font-size: 12px; text-transform: uppercase; letter-spacing: .14em; font-weight: 700; color: var(--teal); }
.card h3 { font-size: 17px; margin: 12px 0 6px; letter-spacing: -0.01em; }
.card p { color: var(--muted); font-size: 14.5px; }

.two { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
@media (max-width: 820px){ .two { grid-template-columns: 1fr; gap: 28px; } }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 48px 0 60px; margin-top: 30px; color: var(--faint); }
.footer .wrap { display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; align-items: center; }
.footer a { color: var(--muted); font-size: 14.5px; margin-right: 20px; }
.footer a:hover { color: var(--text); }
.footer .small { font-size: 13px; color: var(--faint); width: 100%; margin-top: 6px; }

/* ---------- Legal / prose pages ---------- */
.doc { padding: 66px 0 40px; }
.doc .wrap { max-width: 760px; }
.doc .back { color: var(--muted); font-size: 14.5px; display: inline-flex; gap: 7px; align-items: center; margin-bottom: 30px; }
.doc .back:hover { color: var(--text); }
.doc h1 { font-size: clamp(30px, 6vw, 44px); letter-spacing: -0.03em; font-weight: 800; }
.doc .eff { color: var(--faint); font-size: 14.5px; margin-top: 10px; }
.doc h2 { font-size: 21px; letter-spacing: -0.01em; margin: 40px 0 12px; padding-top: 8px; }
.doc h3 { font-size: 17px; margin: 24px 0 8px; }
.doc p, .doc li { color: #c7d2e2; font-size: 16px; margin-top: 12px; }
.doc ul { padding-left: 22px; }
.doc li { margin-top: 8px; }
.doc strong { color: var(--text); }
.doc a { color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.doc hr { border: none; border-top: 1px solid var(--line); margin: 40px 0; }
.doc .note { color: var(--faint); font-size: 14px; font-style: italic; }

/* ---------- Support extras ---------- */
.faq { margin-top: 30px; }
.faq details { border: 1px solid var(--line); border-radius: 14px; background: var(--panel); padding: 4px 20px; margin-top: 12px; }
.faq summary { cursor: pointer; padding: 16px 0; font-weight: 600; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--teal); font-size: 20px; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); padding-bottom: 16px; }
.btn { display:inline-block; margin-top: 22px; padding: 13px 24px; border-radius: 12px; background: var(--grad); color: #06121f; font-weight: 700; font-size: 15.5px; }

/* ===========================================================================
   Homepage showcase — hero depth, the feed contrast, and the playable demo.
   Everything here is additive; the legal/support pages are untouched by it.
   =========================================================================== */

/* --- Hero ---------------------------------------------------------------- */
.hero-x{position:relative;min-height:min(100svh,900px);display:flex;align-items:center;
  justify-content:center;text-align:center;overflow:hidden;padding:110px 0 90px}
.hero-x .layer{position:absolute;inset:0;pointer-events:none}
.hero-x .l-glow{background:
  radial-gradient(48% 42% at 50% 34%,rgba(56,197,172,.20),transparent 68%),
  radial-gradient(44% 38% at 72% 22%,rgba(47,116,192,.22),transparent 70%),
  radial-gradient(38% 34% at 24% 30%,rgba(53,184,196,.14),transparent 72%)}
.hero-x .l-grid{background-image:
  linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(70% 60% at 50% 40%,#000,transparent 72%);
          mask-image:radial-gradient(70% 60% at 50% 40%,#000,transparent 72%)}
.hero-x .inner{position:relative;z-index:2;max-width:900px;padding:0 24px}
.hero-x .kicker{display:inline-flex;align-items:center;gap:9px;padding:8px 16px;border-radius:999px;
  border:1px solid var(--line);background:rgba(17,26,46,.66);color:var(--muted);
  font-size:13px;font-weight:600;letter-spacing:.04em}
.hero-x .kicker .dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px var(--teal)}
.hero-x h1{font-size:clamp(44px,9vw,104px);line-height:.98;letter-spacing:-.045em;font-weight:800;margin:26px 0 0}
.hero-x h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-x .sub{max-width:600px;margin:24px auto 0;color:var(--muted);font-size:clamp(16px,2.1vw,19px)}
.hero-x .cues{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.cue{border:1px solid var(--line);background:var(--panel);border-radius:999px;padding:9px 16px;
  font-size:13.5px;color:var(--muted)}
.cue b{color:var(--text);font-weight:600}
.scroll-hint{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:2;
  color:var(--faint);font-size:12px;letter-spacing:.18em;text-transform:uppercase;display:flex;
  flex-direction:column;align-items:center;gap:9px}
.scroll-hint i{width:1px;height:34px;background:linear-gradient(var(--teal),transparent);animation:hint 1.9s ease-in-out infinite}
@keyframes hint{0%,100%{opacity:.25;transform:scaleY(.55);transform-origin:top}50%{opacity:1;transform:scaleY(1)}}
@media (prefers-reduced-motion: reduce){ .scroll-hint i{animation:none} }

/* --- Feed vs Polson ------------------------------------------------------ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:36px}}
.feedbox{position:relative;height:420px;border:1px solid var(--line);border-radius:22px;overflow:hidden;
  background:linear-gradient(180deg,#0c1322,#0a0f1a)}
.feedbox:before,.feedbox:after{content:"";position:absolute;left:0;right:0;height:90px;z-index:2;pointer-events:none}
.feedbox:before{top:0;background:linear-gradient(#0c1322,transparent)}
.feedbox:after{bottom:0;background:linear-gradient(transparent,#0a0f1a)}
.feedtrack{display:flex;flex-direction:column;gap:12px;padding:16px;animation:feed 22s linear infinite}
@keyframes feed{from{transform:translateY(0)}to{transform:translateY(-50%)}}
@media (prefers-reduced-motion: reduce){ .feedtrack{animation:none} }
.fitem{border:1px solid var(--line);border-radius:13px;padding:13px 15px;background:rgba(255,255,255,.028);
  filter:blur(1.6px);opacity:.5}
.fitem .fh{display:flex;align-items:center;gap:9px;margin-bottom:8px}
.fitem .fav{width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,#243b5c,#2b3c60)}
.fitem .fl{height:8px;border-radius:5px;background:rgba(255,255,255,.16)}
.fitem .fl.s{width:38%}.fitem .fl.m{width:76%}.fitem .fl.l{width:92%}
.feedcap{position:absolute;z-index:3;left:0;right:0;bottom:16px;text-align:center;color:var(--faint);
  font-size:12px;letter-spacing:.15em;text-transform:uppercase}

/* --- Playable demo ------------------------------------------------------- */
.demo{border:1px solid var(--line);border-radius:24px;background:
  linear-gradient(160deg,rgba(56,197,172,.07),rgba(17,26,46,.6));padding:clamp(22px,4vw,38px);max-width:760px;margin:40px auto 0}
.demo .q{font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--teal);font-weight:700}
.post{border:1px solid var(--line);border-radius:16px;background:#0b1120;padding:18px 20px;margin-top:18px}
.post .ph{display:flex;align-items:center;gap:11px;margin-bottom:12px}
.post .pav{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#2f74c0,#38c5ac);
  display:flex;align-items:center;justify-content:center;font-weight:800;color:#06121f;font-size:15px}
.post .pn{font-weight:700;font-size:14.5px}
.post .pm{color:var(--faint);font-size:12.5px}
.post p{font-size:16px;line-height:1.55;color:#dbe4f1}
.post .tell{border-radius:4px;padding:0 3px;transition:background .45s ease,color .45s ease}
.demo.revealed .post .tell{background:rgba(255,138,138,.19);box-shadow:inset 0 -1px 0 rgba(255,138,138,.55)}
.answers{display:flex;gap:12px;margin-top:20px;flex-wrap:wrap}
.ans{flex:1 1 190px;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:13px;
  padding:15px 18px;font:inherit;font-weight:650;font-size:15.5px;cursor:pointer;
  transition:border-color .16s,background .16s,transform .12s}
.ans:hover{border-color:var(--teal);transform:translateY(-1px)}
.ans[disabled]{cursor:default;opacity:.5;transform:none}
.ans.right{border-color:var(--teal);background:rgba(56,197,172,.14);opacity:1}
.ans.wrong{border-color:#c2566a;background:rgba(194,86,106,.14);opacity:1}
.verdict{margin-top:20px;border-top:1px solid var(--line);padding-top:18px;
  max-height:0;opacity:0;overflow:hidden;transition:max-height .5s ease,opacity .4s ease}
.demo.revealed .verdict{max-height:460px;opacity:1}
.verdict h4{font-size:16.5px;margin-bottom:10px}
.verdict li{color:var(--muted);font-size:14.5px;margin-top:8px}
.verdict li b{color:var(--text)}
.verdict .close{margin-top:16px;color:var(--faint);font-size:13.5px;font-style:italic}