/* ZerotheBot download site. Tokens mirror the desktop app's theme (ui/theme.py). */
:root {
  --bg: #0e1014; --panel: #13161c; --panel2: #1a1e26; --raised: #20252f;
  --line: #232832; --line2: #2d3340;
  --text: #e8eaf0; --muted: #8a92a6; --faint: #5d6577;
  --accent: #7c9cff; --accent-hi: #98b2ff; --accent-text: #0b0e16; --accent-soft: #1a2240;
  --ok: #5bc48a; --warn: #e3b45f; --warn-bg: #2e2514;
  --glow: rgba(124, 156, 255, .22); --shadow: 0 30px 80px -20px rgba(0, 0, 0, .7);
  --nav-bg: rgba(14, 16, 20, .72);
  --radius: 16px;
  --font: "Segoe UI Variable Text", "Segoe UI", Inter, system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Code", "Cascadia Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f5f6f9; --panel: #ffffff; --panel2: #f0f2f7; --raised: #e8ebf2;
    --line: #e3e6ee; --line2: #d3d8e3;
    --text: #1b2030; --muted: #667089; --faint: #98a0b3;
    --accent: #3d63dd; --accent-hi: #5476e8; --accent-text: #ffffff; --accent-soft: #eaf0ff;
    --ok: #2a9460; --warn: #a8761a; --warn-bg: #fbf0d9;
    --glow: rgba(61, 99, 221, .16); --shadow: 0 30px 70px -25px rgba(30, 40, 80, .35);
    --nav-bg: rgba(245, 246, 249, .78); --g1: #3d63dd; --g2: #7a52e0; --g3: #139a78;
    color-scheme: light;
  }
}
:root[data-theme="dark"] { --g1: var(--accent-hi); --g2: #b79cff; --g3: #7be0c0; }
:root[data-theme="light"] {
  --bg: #f5f6f9; --panel: #ffffff; --panel2: #f0f2f7; --raised: #e8ebf2;
  --line: #e3e6ee; --line2: #d3d8e3;
  --text: #1b2030; --muted: #667089; --faint: #98a0b3;
  --accent: #3d63dd; --accent-hi: #5476e8; --accent-text: #ffffff; --accent-soft: #eaf0ff;
  --ok: #2a9460; --warn: #a8761a; --warn-bg: #fbf0d9;
  --glow: rgba(61, 99, 221, .16); --shadow: 0 30px 70px -25px rgba(30, 40, 80, .35);
  --nav-bg: rgba(245, 246, 249, .78); --g1: #3d63dd; --g2: #7a52e0; --g3: #139a78;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0; background: var(--bg); color: var(--text); font-family: var(--font);
  font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hi); }
h1, h2, h3 { line-height: 1.12; margin: 0; letter-spacing: -.02em; text-wrap: balance; }
p { margin: 0; }
.wrap { width: min(1140px, 100% - 40px); margin-inline: auto; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 8px; }

/* ---------- nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50; background: transparent;
  border-bottom: 1px solid transparent; transition: background .25s, border-color .25s, backdrop-filter .25s;
}
.nav.scrolled { background: var(--nav-bg); border-color: var(--line); backdrop-filter: blur(14px) saturate(1.3); -webkit-backdrop-filter: blur(14px) saturate(1.3); }
.nav .wrap { display: flex; align-items: center; height: 64px; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; font-size: 17px; letter-spacing: -.01em; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.brand:hover { color: var(--text); }
.links { display: flex; gap: 6px; margin-left: 8px; }
.links a { color: var(--muted); font-size: 14.5px; padding: 6px 12px; border-radius: 999px; transition: color .15s, background .15s; }
.links a:hover { color: var(--text); background: color-mix(in srgb, var(--text) 7%, transparent); }
.nav .grow { flex: 1; }
.icon-btn {
  display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 999px; border: 1px solid var(--line2);
  background: transparent; color: var(--muted); cursor: pointer; transition: color .15s, background .15s, border-color .15s;
}
.icon-btn:hover { color: var(--text); background: var(--panel2); }
.icon-btn svg { width: 18px; height: 18px; }
@media (max-width: 820px) { .links { display: none; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; border-radius: 12px; border: 1px solid var(--line2);
  background: var(--panel2); color: var(--text); font: inherit; font-weight: 600; font-size: 15px; padding: 11px 18px; cursor: pointer;
  transition: transform .15s, background .15s, border-color .15s, box-shadow .15s;
}
.btn:hover { background: var(--raised); color: var(--text); transform: translateY(-1px); }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn.primary {
  background: linear-gradient(180deg, var(--accent-hi), var(--accent)); color: var(--accent-text); border-color: transparent;
  box-shadow: 0 8px 28px -8px var(--glow), 0 0 0 1px color-mix(in srgb, var(--accent) 60%, transparent) inset;
}
.btn.primary:hover { color: var(--accent-text); box-shadow: 0 12px 36px -8px var(--accent), 0 0 0 1px color-mix(in srgb, var(--accent) 60%, transparent) inset; }
.btn.lg { padding: 15px 26px; font-size: 17px; border-radius: 14px; }
.btn.sm { padding: 8px 14px; font-size: 14px; border-radius: 10px; }

/* ---------- hero ---------- */
.hero { position: relative; padding: 148px 0 40px; text-align: center; isolation: isolate; overflow-x: clip; }
.hero::before {
  content: ""; position: absolute; inset: -10% -10% auto -10%; height: 760px; z-index: -1;
  background:
    radial-gradient(600px 340px at 50% 12%, var(--glow), transparent 70%),
    radial-gradient(420px 260px at 18% 38%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 70%),
    radial-gradient(420px 260px at 84% 30%, rgba(91, 196, 138, .08), transparent 70%);
}
.hero::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 640px; z-index: -1; opacity: .5;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 60% 70% at 50% 0%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 60% 70% at 50% 0%, #000 20%, transparent 75%);
}
.pill {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--muted); padding: 6px 14px 6px 8px; border-radius: 999px;
  border: 1px solid var(--line2); background: color-mix(in srgb, var(--panel) 80%, transparent);
}
.pill b { background: var(--accent-soft); color: var(--accent); font-weight: 650; font-size: 12px; padding: 2px 9px; border-radius: 999px; }
.hero h1 { font-size: clamp(38px, 6.4vw, 72px); font-weight: 760; margin: 22px auto 0; max-width: 17ch; letter-spacing: -.035em; }
.grad { background: linear-gradient(100deg, var(--g1, var(--accent-hi)), var(--g2, #b79cff) 55%, var(--g3, #7be0c0)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: clamp(17px, 2vw, 20px); color: var(--muted); max-width: 640px; margin: 22px auto 0; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 34px; }
.meta { margin-top: 16px; font-size: 13.5px; color: var(--faint); display: flex; flex-wrap: wrap; gap: 6px 18px; justify-content: center; }
.meta span { display: inline-flex; align-items: center; gap: 6px; }
.meta svg { width: 14px; height: 14px; color: var(--ok); }
.os-note { display: none; margin: 14px auto 0; max-width: 560px; font-size: 14px; color: var(--warn); background: var(--warn-bg); border: 1px solid color-mix(in srgb, var(--warn) 35%, transparent); border-radius: 12px; padding: 10px 14px; }
.os-note.show { display: block; }

/* window frame */
.shot-wrap { position: relative; margin: 64px auto 0; width: min(1040px, 100%); perspective: 1600px; }
.shot-wrap::before {
  content: ""; position: absolute; inset: 8% 6% -6%; background: var(--glow); filter: blur(70px); border-radius: 50%; z-index: -1;
}
.window {
  border-radius: 14px; overflow: hidden; border: 1px solid var(--line2); background: var(--panel); box-shadow: var(--shadow), 0 0 0 1px rgba(255,255,255,.02) inset;
}
.window .bar { display: flex; align-items: center; gap: 10px; height: 38px; padding: 0 14px; background: var(--panel); border-bottom: 1px solid var(--line); font-size: 12.5px; color: var(--faint); }
.window .bar img { width: 16px; height: 16px; border-radius: 4px; }
.window .bar .ctl { margin-left: auto; display: flex; gap: 16px; color: var(--faint); }
.window .bar .ctl i { display: block; width: 10px; height: 10px; border: 1.5px solid currentColor; border-radius: 1px; }
.window .bar .ctl i:first-child { border: 0; border-bottom: 1.5px solid currentColor; height: 6px; border-radius: 0; }
.window img.shot { width: 100%; height: auto; background: var(--bg); }
.hero .window { transform: rotateX(4deg) scale(.985); transform-origin: 50% 0; transition: transform .8s cubic-bezier(.2, .7, .2, 1); }
.hero .shot-wrap.in .window { transform: none; }

/* provider strip */
.strip { padding: 54px 0 8px; text-align: center; }
.strip small { color: var(--faint); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 18px; }
.chip { font-size: 14px; color: var(--muted); border: 1px solid var(--line); background: var(--panel); border-radius: 999px; padding: 7px 16px; }

/* ---------- sections ---------- */
section { padding: 104px 0 0; }
.eyebrow { color: var(--accent); font-size: 13px; font-weight: 650; letter-spacing: .1em; text-transform: uppercase; }
.sec-head { max-width: 680px; margin-bottom: 48px; }
.sec-head.center { text-align: center; margin-inline: auto; }
.sec-head h2 { font-size: clamp(30px, 4.4vw, 46px); font-weight: 740; margin-top: 12px; }
.sec-head p { color: var(--muted); font-size: 18px; margin-top: 16px; }

/* feature grid */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  position: relative; background: linear-gradient(180deg, var(--panel), color-mix(in srgb, var(--panel) 70%, var(--bg)));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: border-color .2s, transform .2s, box-shadow .2s;
}
.card:hover { border-color: var(--line2); transform: translateY(-3px); box-shadow: 0 18px 40px -22px var(--glow); }
.card .ico { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); margin-bottom: 18px; }
.card .ico svg { width: 21px; height: 21px; }
.card h3 { font-size: 18px; font-weight: 650; letter-spacing: -.01em; }
.card p { color: var(--muted); font-size: 15px; margin-top: 8px; }
@media (max-width: 900px) { .grid3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid3 { grid-template-columns: 1fr; } }

/* showcase tabs */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 26px; }
.tab {
  font: inherit; font-size: 14.5px; font-weight: 550; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 999px;
  padding: 8px 18px; cursor: pointer; transition: all .15s;
}
.tab:hover { color: var(--text); border-color: var(--line2); }
.tab[aria-selected="true"] { color: var(--accent-text); background: var(--accent); border-color: var(--accent); }
.show { position: relative; width: min(980px, 100%); margin-inline: auto; }
.show .window img.shot { transition: opacity .25s; }
.show .caption { text-align: center; color: var(--muted); margin-top: 22px; min-height: 52px; font-size: 16px; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.step { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; position: relative; overflow: hidden; }
.step::before {
  counter-increment: s; content: counter(s); position: absolute; right: 20px; bottom: -22px; font-size: 110px; font-weight: 800; line-height: 1; letter-spacing: -.05em;
  color: color-mix(in srgb, var(--accent) 12%, transparent);
}
.step h3 { font-size: 19px; font-weight: 650; }
.step p { color: var(--muted); margin-top: 10px; font-size: 15px; position: relative; }
.step { padding-bottom: 44px; }
.step code { font-family: var(--mono); font-size: 13px; background: var(--panel2); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; color: var(--text); }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }

/* safety */
.safety { display: grid; grid-template-columns: 1.05fr 1fr; gap: 20px; align-items: stretch; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.panel h3 { font-size: 20px; font-weight: 650; }
.panel > p { color: var(--muted); margin-top: 10px; }
.ask { list-style: none; padding: 0; margin: 20px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ask li { display: flex; align-items: center; gap: 10px; background: var(--panel2); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; font-size: 14.5px; }
.ask li svg { width: 16px; height: 16px; color: var(--warn); flex: none; }
.checks { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 14px; }
.checks li { display: flex; gap: 12px; color: var(--muted); font-size: 15px; }
.checks li b { color: var(--text); font-weight: 600; }
.checks li svg { width: 20px; height: 20px; color: var(--ok); flex: none; margin-top: 2px; }
.note { margin-top: 20px; font-size: 14.5px; color: var(--muted); background: var(--accent-soft); border-radius: 12px; padding: 14px 16px; }
.note b { color: var(--text); }
.honest { margin-top: 20px; font-size: 13.5px; color: var(--faint); border-top: 1px solid var(--line); padding-top: 16px; }
@media (max-width: 860px) { .safety { grid-template-columns: 1fr; } .ask { grid-template-columns: 1fr; } }

/* download */
.dl {
  position: relative; overflow: hidden; border-radius: 24px; border: 1px solid var(--line2); padding: 48px;
  background: radial-gradient(700px 320px at 15% 0%, var(--glow), transparent 70%), linear-gradient(180deg, var(--panel), var(--bg));
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px;
}
.dl h2 { font-size: clamp(30px, 4vw, 42px); font-weight: 740; }
.dl .lead { color: var(--muted); font-size: 17px; margin-top: 14px; max-width: 46ch; }
.dl .cta { justify-content: flex-start; }
.facts { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: color-mix(in srgb, var(--panel) 80%, transparent); align-self: start; }
.facts li { display: flex; justify-content: space-between; gap: 18px; padding: 13px 18px; font-size: 14.5px; border-bottom: 1px solid var(--line); }
.facts li:last-child { border: 0; }
.facts span:first-child { color: var(--muted); }
.facts span:last-child { text-align: right; font-weight: 550; }
.hash { grid-column: 1 / -1; }
.hash label { display: block; font-size: 13px; color: var(--faint); letter-spacing: .06em; text-transform: uppercase; margin-bottom: 8px; }
.code {
  display: flex; align-items: center; gap: 10px; background: var(--panel2); border: 1px solid var(--line); border-radius: 12px; padding: 8px 8px 8px 16px;
  font-family: var(--mono); font-size: 13px; color: var(--muted); overflow: hidden;
}
.code code { flex: 1; overflow-x: auto; white-space: nowrap; scrollbar-width: none; }
.code code::-webkit-scrollbar { display: none; }
.code + .code, .hash .code + label { margin-top: 10px; }
.smart {
  grid-column: 1 / -1; display: flex; gap: 14px; background: var(--warn-bg); border: 1px solid color-mix(in srgb, var(--warn) 30%, transparent);
  border-radius: 14px; padding: 16px 18px; color: var(--text); font-size: 14.5px;
}
.smart svg { width: 20px; height: 20px; color: var(--warn); flex: none; margin-top: 2px; }
.smart p { color: var(--muted); }
.smart b { color: var(--text); }
.alt { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 14.5px; color: var(--muted); }
@media (max-width: 880px) { .dl { grid-template-columns: 1fr; padding: 30px 22px; gap: 28px; } }

/* faq */
.faq { max-width: 800px; margin-inline: auto; display: grid; gap: 10px; }
details { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; transition: border-color .2s; }
details[open] { border-color: var(--line2); }
summary { list-style: none; cursor: pointer; padding: 18px 22px; font-weight: 600; font-size: 16.5px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-size: 22px; font-weight: 400; color: var(--muted); transition: transform .2s; line-height: 1; }
details[open] summary::after { transform: rotate(45deg); }
details .a { padding: 0 22px 20px; color: var(--muted); font-size: 15.5px; }
details .a p + p { margin-top: 10px; }
details .a code { font-family: var(--mono); font-size: 13px; background: var(--panel2); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; color: var(--text); }

/* footer */
footer { margin-top: 110px; border-top: 1px solid var(--line); padding: 44px 0 56px; color: var(--faint); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 20px 40px; justify-content: space-between; align-items: flex-start; }
footer .brand { font-size: 16px; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
footer nav a { color: var(--muted); }
footer nav a:hover { color: var(--text); }
footer small { display: block; max-width: 520px; margin-top: 10px; line-height: 1.55; }

/* reveal */
.rv { opacity: 0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.2, .7, .2, 1), transform .7s cubic-bezier(.2, .7, .2, 1); transition-delay: var(--d, 0s); }
.rv.in { opacity: 1; transform: none; }
.no-js .rv { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rv, .hero .window { opacity: 1 !important; transform: none !important; transition: none !important; }
}
@media (max-width: 520px) {
  .nav .wrap { gap: 10px; }
  .nav .brand { font-size: 16px; }
  .nav a.icon-btn { display: none; }
}
@media (max-width: 600px) {
  .hero { padding-top: 118px; }
  section { padding-top: 80px; }
  .btn.lg { width: 100%; }
  .cta { flex-direction: column; align-items: stretch; }
}

footer .visits { margin: 0; width: 100%; font-size: 13px; color: var(--faint); }
footer .visits b { color: var(--muted); font-variant-numeric: tabular-nums; }