/* ============================================================
   FckTracking — Landing Page
   Dark, signal-vs-noise. The demo window behaves like the extension.
   ============================================================ */

:root {
  --bg: #0B0F0E;
  --panel: #121815;
  --panel-2: #18211D;
  --line: rgba(196, 247, 220, 0.08);
  --line-strong: rgba(196, 247, 220, 0.15);
  --ink: #E7F3EC;
  --muted: #8FA398;
  --faint: #5C6E64;
  --grad-a: #4ADE80;
  --grad-b: #2DD4BF;
  --grad-c: #22D3EE;
  --accent: #2DD4BF;
  --noise: #F472B6;
  --radius: 18px;
  --radius-lg: 26px;
  --font-display: "Bricolage Grotesque", "Avenir Next", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Atmosphere: glow + dot grid + grain */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(900px 540px at 72% -8%, rgba(45, 212, 191, 0.16), transparent 65%),
    radial-gradient(700px 500px at 8% 12%, rgba(74, 222, 128, 0.07), transparent 60%),
    radial-gradient(rgba(196, 247, 220, 0.045) 1px, transparent 1px);
  background-size: auto, auto, 28px 28px;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.35;
  mix-blend-mode: overlay;
  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");
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 28px;
  position: relative;
  z-index: 1;
}

::selection { background: var(--grad-b); color: #06120D; }

a { color: var(--grad-b); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ============================================================
   Topbar
   ============================================================ */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 15, 14, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.topbar__logo {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: -0.02em;
}
.topbar__logo:hover { text-decoration: none; }
.topbar__logo img { width: 40px; height: 40px; display: block; }

.topbar__nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14.5px;
}
.topbar__nav a { color: var(--muted); }
.topbar__nav a:hover { color: var(--ink); text-decoration: none; }

.lang-switch {
  font-family: var(--font-mono);
  font-size: 12.5px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 5px 13px;
  color: var(--muted) !important;
  transition: border-color 0.2s, color 0.2s;
}
.lang-switch:hover { border-color: var(--grad-b); color: var(--ink) !important; }

/* ============================================================
   Hero
   ============================================================ */

.hero {
  padding: 84px 0 40px;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 56px;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grad-b);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--grad-a), var(--grad-c));
}

.hero h1 {
  font-size: clamp(44px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin-bottom: 24px;
}

.hero h1 .grad {
  background: linear-gradient(120deg, var(--grad-a), var(--grad-b) 55%, var(--grad-c));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lede {
  font-size: 19px;
  color: var(--muted);
  max-width: 46ch;
  margin-bottom: 30px;
}
.hero p.lede strong { color: var(--ink); font-weight: 600; }

.hero__hint {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--faint);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
}

/* Keycaps */
.key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 26px;
  padding: 0 8px;
  border-radius: 7px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line-strong);
  border-bottom-width: 2.5px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink);
  white-space: nowrap;
}

/* ============================================================
   Demo — a tracker's view of your browser, filling with noise
   ============================================================ */

.demo { position: relative; }

.demo__window {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--panel);
  border: 1px solid var(--line-strong);
  box-shadow:
    0 40px 90px -28px rgba(0, 0, 0, 0.75),
    0 0 0 1px rgba(0, 0, 0, 0.4),
    0 24px 60px -18px rgba(45, 212, 191, 0.22);
  overflow: hidden;
  aspect-ratio: 800 / 540;
  user-select: none;
  outline: none;
  display: flex;
  flex-direction: column;
}
.demo__window:focus-visible { border-color: var(--grad-b); }

/* browser chrome */
.demo__chrome {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.015);
  flex-shrink: 0;
}
.demo__dots { display: flex; gap: 6px; }
.demo__dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--line-strong); display: block; }
.demo__title {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--faint);
  flex: 1;
}
.demo__badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  min-width: 22px;
  height: 22px;
  padding: 0 7px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: #2b2b2b;
  color: #cfd8d2;
  transition: background 0.2s, color 0.2s;
}
.demo__badge[data-status="running"] { background: var(--grad-a); color: #06120D; }
.demo__badge[data-status="paused"]  { background: var(--noise); color: #1a0a12; }

/* tab strip */
.demo__tabs {
  display: flex;
  gap: 7px;
  padding: 10px 14px;
  flex-wrap: wrap;
  min-height: 46px;
  border-bottom: 1px solid var(--line);
  align-content: flex-start;
}
.demo__tab {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px;
  border-radius: 8px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  animation: tabIn 0.25s ease;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}
.demo__tab.is-closing { animation: tabOut 0.25s ease forwards; }
.demo__tab i { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
@keyframes tabIn { from { opacity: 0; transform: translateY(-6px) scale(0.92); } to { opacity: 1; } }
@keyframes tabOut { to { opacity: 0; transform: scale(0.92); } }

/* page area */
.demo__page {
  position: relative;
  flex: 1;
  overflow: hidden;
  padding: 18px 22px;
}
.demo__url {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--grad-b);
  margin-bottom: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.demo__wire { display: flex; flex-direction: column; gap: 11px; transition: transform 0.6s cubic-bezier(0.3,0.7,0.2,1); }
.demo__wire .block {
  height: 64px;
  border-radius: 10px;
  background: linear-gradient(110deg, var(--panel-2), rgba(45,212,191,0.06));
  border: 1px solid var(--line);
}
.demo__wire .ln { height: 10px; border-radius: 5px; background: var(--panel-2); }
.demo__wire .ln.w1 { width: 88%; } .demo__wire .ln.w2 { width: 72%; } .demo__wire .ln.w3 { width: 94%; } .demo__wire .ln.w4 { width: 60%; }

.demo__idle {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
  padding: 20px;
  background: var(--panel);
  transition: opacity 0.3s;
}
.demo__idle.is-hidden { opacity: 0; pointer-events: none; }
.demo__idle .reticle {
  width: 54px; height: 54px; border-radius: 50%;
  border: 4px solid var(--grad-b);
  position: relative;
}
.demo__idle .reticle::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  width: 10px; height: 10px; border-radius: 50%; background: var(--grad-a);
}
.demo__idle p { font-family: var(--font-mono); font-size: 12.5px; color: var(--muted); }
.demo__idle .key { transform: translateY(-1px); }

/* status bar */
.demo__statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  flex-shrink: 0;
}
.demo__action { display: inline-flex; align-items: center; gap: 7px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.demo__action b { color: var(--ink); font-weight: 500; }
.demo__counter { color: var(--faint); white-space: nowrap; }
.demo__counter strong { color: var(--grad-a); font-weight: 600; }

/* read-progress bar */
.demo__bar {
  height: 2.5px;
  width: 0%;
  background: linear-gradient(90deg, var(--grad-a), var(--grad-c));
  transition: width 0.5s linear;
  flex-shrink: 0;
}

.demo__caption {
  margin-top: 16px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--faint);
}
.demo__caption .key { transform: translateY(-1px); }

/* ============================================================
   Manifesto strip
   ============================================================ */

.manifesto {
  margin: 96px 0;
  padding: 56px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.manifesto h2 {
  font-size: clamp(30px, 4.6vw, 52px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.12;
  max-width: 22ch;
}

.manifesto h2 .no {
  color: var(--faint);
  text-decoration: line-through;
  text-decoration-color: var(--noise);
  text-decoration-thickness: 3px;
}
.manifesto h2 .yes {
  background: linear-gradient(120deg, var(--grad-a), var(--grad-c));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.manifesto p {
  margin-top: 18px;
  color: var(--muted);
  max-width: 58ch;
}

/* ============================================================
   Features — asymmetric bento
   ============================================================ */

.features { padding: 10px 0 40px; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 34px;
}
.section-head h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 800;
  letter-spacing: -0.03em;
}
.section-head .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faint);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.cell {
  grid-column: span 2;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 26px 24px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s;
}
.cell:hover { border-color: rgba(45, 212, 191, 0.35); transform: translateY(-2px); }

.cell--wide { grid-column: span 4; }

.cell h3 {
  font-size: 18.5px;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.cell p { font-size: 14.5px; color: var(--muted); }
.cell .key { margin-right: 2px; }

.cell__num {
  position: absolute;
  top: 20px;
  right: 22px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faint);
}

/* category dots strip */
.cats { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.cats span {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 9px;
}

/* ============================================================
   Shortcuts table
   ============================================================ */

.shortcuts { padding: 70px 0 30px; }

.shortcut-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 14px 30px;
}

.shortcut {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  color: var(--muted);
}
.shortcut:nth-last-child(-n+2) { border-bottom: 0; }
.shortcut .keys { display: flex; gap: 5px; flex-shrink: 0; }

/* ============================================================
   Install / download
   ============================================================ */

.build { padding: 70px 0 30px; }

.build__panel {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(600px 280px at 85% -20%, rgba(45, 212, 191, 0.18), transparent 70%),
    var(--panel);
  padding: 44px 46px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: center;
}

.build__panel h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.build__panel p { color: var(--muted); font-size: 15.5px; }
.build__panel p + p { margin-top: 10px; }

pre.code {
  background: #070A09;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 24px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--ink);
  overflow-x: auto;
}
pre.code .c { color: var(--faint); }
pre.code .p { color: var(--grad-b); }

.dl-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
}

.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 24px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15.5px;
  letter-spacing: -0.01em;
  color: #06120D;
  background: linear-gradient(120deg, var(--grad-a), var(--grad-b) 60%, var(--grad-c));
  box-shadow: 0 10px 30px -10px rgba(45, 212, 191, 0.6);
  transition: transform 0.15s, box-shadow 0.2s, filter 0.2s;
}
.dl-btn:hover { transform: translateY(-2px); filter: brightness(1.05); text-decoration: none; box-shadow: 0 16px 38px -12px rgba(45, 212, 191, 0.75); }

.dl-secondary { font-size: 14px; color: var(--muted); }
.dl-secondary:hover { color: var(--ink); }

/* ============================================================
   Changelog
   ============================================================ */

.changelog { padding: 70px 0 30px; }

.timeline {
  border-left: 1px solid var(--line-strong);
  margin-left: 8px;
  padding-left: 0;
}
.tl-item { position: relative; padding: 0 0 30px 28px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: linear-gradient(120deg, var(--grad-a), var(--grad-c));
  box-shadow: 0 0 0 4px var(--bg);
}
.tl-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 10px; }
.tl-version {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
}
.tl-date { font-family: var(--font-mono); font-size: 12px; color: var(--faint); }
.tl-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.tl-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  color: var(--muted);
}
.tl-list li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ============================================================
   Donate
   ============================================================ */

.donate { padding: 70px 0 30px; }

.donate__panel {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(600px 280px at 18% -20%, rgba(74, 222, 128, 0.16), transparent 70%),
    var(--panel);
  padding: 48px 46px;
  text-align: center;
}
.donate__panel h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 14px;
}
.donate__panel p {
  color: var(--muted);
  font-size: 15.5px;
  max-width: 56ch;
  margin: 0 auto 26px;
}
.donate-btn {
  display: inline-block;
  transition: opacity 0.2s, transform 0.15s;
}
.donate-btn:hover { opacity: 0.88; transform: translateY(-2px); text-decoration: none; }
.donate-btn img { height: 44px; width: auto; display: block; margin: 0 auto; }
.donate__note { margin-top: 22px; font-size: 12.5px; color: var(--faint); }

/* ============================================================
   Footer
   ============================================================ */

footer {
  margin-top: 80px;
  border-top: 1px solid var(--line);
  padding: 34px 0 44px;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  font-size: 13.5px;
  color: var(--faint);
}
.footer__inner a { color: var(--muted); }
.footer__inner nav { display: flex; gap: 20px; }

.footer__built {
  margin-top: 18px;
  font-size: 12.5px;
  color: var(--faint);
}

/* ============================================================
   Legal pages
   ============================================================ */

.legal { padding: 70px 0; max-width: 760px; }
.legal h1 { font-size: 38px; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 30px; }
.legal h2 { font-size: 21px; font-weight: 700; margin: 34px 0 10px; }
.legal p, .legal li { color: var(--muted); font-size: 15.5px; }
.legal ul { padding-left: 22px; margin: 8px 0; }
.legal address { font-style: normal; color: var(--ink); line-height: 1.7; }

/* ============================================================
   Reveal animations
   ============================================================ */

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.7s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.6, 0.2, 1);
  }
  .reveal.is-in { opacity: 1; transform: none; }
  .hero .reveal:nth-child(2) { transition-delay: 0.08s; }
  .hero .reveal:nth-child(3) { transition-delay: 0.16s; }
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; padding-top: 56px; gap: 40px; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .cell, .cell--wide { grid-column: span 2; }
  .shortcut-grid { grid-template-columns: 1fr; }
  .shortcut:nth-last-child(-n+2) { border-bottom: 1px solid var(--line); }
  .shortcut:last-child { border-bottom: 0; }
  .build__panel { grid-template-columns: 1fr; padding: 32px 26px; }
  .topbar__nav a:not(.lang-switch) { display: none; }
}