/* Black vinyl + gold, matching the bot's avatar. One dark theme on purpose. */
:root {
  color-scheme: dark;
  --bg: #0d0c11;
  --bg-soft: #15131b;
  --card: #1b1922;
  --text: #f5efe4;
  --muted: #b2a995;
  --line: #2d2934;
  --accent: #f2b544;
  --accent-ink: #1a1206;
  --accent-soft: #2c2415;
  --orange: #e09a2c;
  --glow: rgba(242, 181, 68, .16);
  --bkash: #e2136e;
  --nagad: #ec1c24;
  --shadow: 0 12px 34px rgba(0, 0, 0, .45);
  --radius: 18px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; color: var(--text); text-decoration: none; }
.brand img { width: 36px; height: 36px; border-radius: 50%; }
.nav-links { display: flex; gap: 20px; margin-left: auto; }
.nav-links a { color: var(--muted); text-decoration: none; font-weight: 700; font-size: 15px; }
.nav-links a:hover { color: var(--text); }
@media (max-width: 640px) { .nav-links { display: none; } .nav .btn { margin-left: auto; } }

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px;
  font-weight: 800; font-size: 16px; text-decoration: none; border: 0; cursor: pointer;
  background: var(--accent); color: var(--accent-ink);
  box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 35%, transparent);
  transition: transform .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn.ghost { background: var(--accent-soft); color: var(--accent); box-shadow: none; }
.btn.small { padding: 8px 16px; font-size: 14px; }

/* hero */
.hero {
  background:
    radial-gradient(circle at 76% 45%, var(--glow), transparent 42%),
    repeating-radial-gradient(circle at 76% 45%, rgba(255, 255, 255, .025) 0 2px, transparent 2px 14px),
    linear-gradient(180deg, var(--bg-soft), var(--bg));
  padding: 72px 0 64px;
}
.hero .wrap { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -.02em; }
.hero h1 span { color: var(--accent); }
.hero p.lead { font-size: 19px; color: var(--muted); margin: 0 0 28px; max-width: 34em; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero .free { margin-top: 18px; font-size: 14px; color: var(--muted); }
.hero-art { justify-self: center; position: relative; }
.hero-art img {
  width: min(320px, 70vw); height: auto; aspect-ratio: 1; border-radius: 50%;
  box-shadow: 0 0 0 4px var(--accent-soft), 0 0 60px var(--glow), var(--shadow);
}
.note-float { position: absolute; font-size: 34px; color: var(--accent); animation: float 4s ease-in-out infinite; }
.note-float.n1 { top: -14px; left: -20px; }
.note-float.n2 { bottom: 10px; right: -26px; animation-delay: 1.5s; color: var(--orange); }
@keyframes float { 50% { transform: translateY(-10px) rotate(-8deg); } }
@media (prefers-reduced-motion: reduce) { .note-float { animation: none; } .btn { transition: none; } }
@media (max-width: 760px) {
  .hero { padding: 48px 0; }
  .hero .wrap { grid-template-columns: 1fr; text-align: center; }
  .hero p.lead { margin-left: auto; margin-right: auto; }
  .hero .actions { justify-content: center; }
  .hero-art { order: -1; }
  .hero-art img { width: 180px; }
}

/* sections */
section { padding: 72px 0; scroll-margin-top: 64px; }
section.alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 40px; }
.section-head h2 { font-size: clamp(28px, 4vw, 38px); margin: 0 0 10px; letter-spacing: -.01em; }
.section-head p { color: var(--muted); margin: 0; }

.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow);
}
.card .ico { font-size: 30px; line-height: 1; margin-bottom: 12px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* steps */
.steps { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); counter-reset: step; }
.step { position: relative; padding-top: 52px; }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; top: 18px; left: 22px;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center; font-weight: 800; font-size: 15px;
}
code, kbd {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: .9em;
  background: var(--accent-soft); color: var(--accent); padding: 2px 7px; border-radius: 7px;
}

/* commands */
.cmds { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.cmd { display: flex; gap: 14px; align-items: baseline; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; }
.cmd code { flex: none; font-weight: 700; }
.cmd span { color: var(--muted); font-size: 15px; }
@media (max-width: 400px) { .cmds { grid-template-columns: 1fr; } .cmd { flex-direction: column; gap: 6px; } }

/* donate */
.donate-box { max-width: 760px; margin: 0 auto; text-align: center; }
.pay { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 360px)); justify-content: center; margin: 28px 0 18px; text-align: left; }
.pay .card { border-top: 6px solid var(--c); }
.pay .tag { display: inline-block; font-weight: 800; color: #fff; background: var(--c); padding: 3px 12px; border-radius: 999px; font-size: 14px; }
.pay .num { font: 800 24px/1.2 ui-monospace, Consolas, monospace; margin: 14px 0 4px; letter-spacing: .03em; color: var(--text); }
.pay .how { font-size: 14px; color: var(--muted); margin: 0 0 14px; }
.pay .copy { background: var(--c); color: #fff; box-shadow: none; }
.muted { color: var(--muted); }
.pill-note { display: inline-block; background: var(--accent-soft); color: var(--accent); border-radius: 999px; padding: 6px 16px; font-weight: 700; font-size: 15px; }

/* faq */
details { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 20px; margin: 0 auto 12px; max-width: 760px; }
summary { cursor: pointer; font-weight: 800; }
details p { color: var(--muted); margin: 10px 0 0; }

/* page (privacy, terms, mix) */
.page { max-width: 760px; margin: 0 auto; padding: 56px 20px 72px; }
.page h1 { font-size: clamp(30px, 5vw, 42px); margin: 0 0 6px; }
.page h2 { margin-top: 34px; font-size: 22px; }
.page p, .page li { color: var(--muted); }
.page .updated { color: var(--muted); font-size: 14px; margin-bottom: 26px; }
.bm-btn { margin: 18px 0 8px; }

footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 24px; align-items: center; }
footer a { color: var(--muted); }
footer .right { margin-left: auto; }
@media (max-width: 640px) { footer .right { margin-left: 0; } }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(120px);
  background: var(--text); color: var(--bg); padding: 10px 18px; border-radius: 999px; font-weight: 700;
  transition: transform .25s ease; z-index: 20;
}
.toast.show { transform: translateX(-50%) translateY(0); }