:root {
  --bg: #040906;
  --bg-2: #08120b;
  --green: #26d966;
  --green-light: #8dffb5;
  --green-dark: #0b5a28;
  --amber: #ffa61a;
  --red: #f23333;
  --text: #f2f7f3;
  --muted: rgba(242, 247, 243, 0.68);
  --card: rgba(255, 255, 255, 0.045);
  --border: rgba(255, 255, 255, 0.10);
  --border-green: rgba(38, 217, 102, 0.28);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- top navigation ---------- */
.nav {
  position: absolute; top: 0; left: 0; right: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1120px; margin: 0 auto; padding: 22px 24px;
}
.nav-brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 17px; }
.nav-brand:hover { text-decoration: none; }
.nav-brand img { width: 30px; height: 30px; border-radius: 8px; display: block; }
.nav-links { display: flex; gap: 22px; font-size: 15px; font-weight: 500; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }

/* ---------- hero ---------- */
.hero {
  position: relative; min-height: 100vh; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  padding: 110px 24px 70px; text-align: center;
  background:
    radial-gradient(880px 620px at 50% -6%, rgba(38, 217, 102, 0.34), transparent 70%),
    radial-gradient(600px 420px at 85% 90%, rgba(255, 166, 26, 0.10), transparent 70%),
    var(--bg);
}
.hero-inner { position: relative; z-index: 2; max-width: 780px; }
.app-icon {
  width: 148px; height: 148px; border-radius: 34px; display: block; margin: 0 auto 28px;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.10), 0 18px 60px rgba(38, 217, 102, 0.35), 0 8px 24px rgba(0,0,0,0.55);
  animation: float 6s ease-in-out infinite;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
.badge {
  display: inline-block; padding: 6px 14px; border-radius: 999px; margin-bottom: 20px;
  border: 1px solid var(--border-green); background: rgba(38, 217, 102, 0.08);
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--green);
}
.hero h1 {
  font-size: clamp(46px, 9vw, 88px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.02;
  background: linear-gradient(180deg, #d9ffe6 0%, var(--green) 55%, #128a43 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 10px;
}
.tagline {
  font-size: clamp(13px, 2.2vw, 17px); letter-spacing: 0.34em; text-transform: uppercase;
  color: rgba(242, 247, 243, 0.55); font-weight: 600; margin-bottom: 26px;
}
.lead { font-size: clamp(17px, 2.2vw, 20px); color: var(--muted); max-width: 580px; margin: 0 auto 34px; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 15px 28px; border-radius: 12px;
  font-weight: 700; font-size: 16px; text-decoration: none !important;
  transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(180deg, #4dea86, #1aa84e); color: #03210e;
  box-shadow: 0 10px 28px rgba(38, 217, 102, 0.28), inset 0 1px 0 rgba(255,255,255,0.45);
}
.btn-ghost { color: var(--text); border: 1px solid rgba(255,255,255,0.22); }
.btn-ghost:hover { background: rgba(255,255,255,0.06); }
.btn-static { cursor: default; }
.btn-static:hover { transform: none; }

/* animated waveform under the hero */
.wave {
  position: relative; display: flex; align-items: center; justify-content: center; gap: 4px;
  height: 72px; max-width: 520px; margin: 44px auto 0;
  padding: 0 16px; border-radius: 18px; background: rgba(0,0,0,0.42); border: 1px solid var(--border);
}
.wave span {
  width: 5px; border-radius: 3px; background: var(--amber); height: var(--h);
  animation: pulse 1.6s ease-in-out infinite; animation-delay: var(--d);
  transform-origin: center;
}
@keyframes pulse { 0%,100% { transform: scaleY(1); opacity: .95; } 50% { transform: scaleY(.55); opacity: .55; } }
.wave::after {
  content: ""; position: absolute; top: 8px; bottom: 8px; width: 2px; border-radius: 1px; background: #fff;
  box-shadow: 0 0 10px #fff; left: 12%; animation: sweep 5s linear infinite;
}
@keyframes sweep { from { left: 4%; } to { left: 96%; } }

/* ---------- sections ---------- */
section { padding: 96px 24px; }
.wrap { max-width: 1080px; margin: 0 auto; }
.section-title { text-align: center; font-size: clamp(30px, 4.4vw, 46px); font-weight: 800; letter-spacing: -0.01em; margin-bottom: 12px; }
.section-sub { text-align: center; color: var(--muted); font-size: 17px; max-width: 560px; margin: 0 auto 56px; }
.alt { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* the three button states */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 22px; }
.step { text-align: center; padding: 34px 22px 30px; border-radius: 20px; background: var(--card); border: 1px solid var(--border); }
.stomp {
  --l: #8dffb5; --m: #26d966; --d: #0b5a28;
  position: relative; width: 92px; height: 92px; margin: 0 auto 24px; border-radius: 50%;
  background: radial-gradient(circle at 50% 28%, var(--l), var(--m) 42%, var(--d));
  box-shadow: 0 0 0 5px #262626, 0 0 0 9px #a9a9a9, 0 0 0 10px #5b5b5b, 0 16px 26px rgba(0,0,0,0.55);
}
.stomp::before {
  content: ""; position: absolute; left: 20%; right: 20%; top: 6%; height: 24%; border-radius: 50%;
  background: linear-gradient(180deg, rgba(255,255,255,0.6), rgba(255,255,255,0));
}
.stomp::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 34px; height: 34px; margin: -17px 0 0 -17px;
  background: linear-gradient(180deg, #fff, #d8d8d8); border-radius: 50%; box-shadow: 0 3px 6px rgba(0,0,0,0.35);
}
.stomp.red { --l: #ff9f94; --m: #f23333; --d: #6e0a10; }
.stomp.red::after { border-radius: 8px; width: 30px; height: 30px; margin: -15px 0 0 -15px; }
.stomp.amber { --l: #ffdc85; --m: #ffa61a; --d: #7f4500; }
.stomp.amber::after { border-radius: 8px; width: 30px; height: 30px; margin: -15px 0 0 -15px; }
.step h3 { font-size: 20px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 15.5px; }
.step .num { display: block; font-size: 12px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-bottom: 18px; }

/* screenshots */
.shots { display: flex; gap: 22px; overflow-x: auto; padding: 10px 6px 24px; scroll-snap-type: x proximity; justify-content: safe center; }
.shot { flex: 0 0 auto; width: 270px; scroll-snap-align: center; }
.shot img { width: 100%; display: block; border-radius: 28px; border: 1px solid var(--border); box-shadow: 0 24px 60px rgba(0,0,0,0.55); }
.shot p { text-align: center; margin-top: 14px; font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }

/* features */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.feature { padding: 28px 26px; border-radius: 18px; background: var(--card); border: 1px solid var(--border); transition: border-color .2s ease, transform .2s ease; }
.feature:hover { border-color: var(--border-green); transform: translateY(-3px); }
.feature .ico {
  width: 44px; height: 44px; border-radius: 12px; margin-bottom: 16px; display: grid; place-items: center;
  background: linear-gradient(180deg, rgba(38,217,102,0.22), rgba(38,217,102,0.08)); border: 1px solid var(--border-green);
}
.feature .ico svg { width: 22px; height: 22px; stroke: var(--green); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature h3 { font-size: 18px; margin-bottom: 6px; }
.feature p { color: var(--muted); font-size: 15.5px; }

/* call to action band */
.band { text-align: center; background: radial-gradient(700px 300px at 50% 100%, rgba(38,217,102,0.22), transparent 70%), var(--bg); }
.band h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 12px; font-weight: 800; }
.band p { color: var(--muted); margin-bottom: 28px; }

/* ---------- footer ---------- */
footer { padding: 40px 24px 56px; border-top: 1px solid var(--border); text-align: center; color: var(--muted); font-size: 14.5px; }
footer .links { display: flex; gap: 22px; justify-content: center; margin-bottom: 14px; flex-wrap: wrap; }
footer .links a { color: var(--muted); }
footer .links a:hover { color: var(--text); text-decoration: none; }

/* ---------- inner pages (support / privacy) ---------- */
.page-head {
  position: relative; padding: 130px 24px 56px; text-align: center; overflow: hidden;
  background: radial-gradient(760px 420px at 50% -10%, rgba(38, 217, 102, 0.28), transparent 70%), var(--bg);
}
.page-head h1 { font-size: clamp(36px, 6vw, 56px); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 10px; }
.page-head p { color: var(--muted); font-size: 18px; max-width: 560px; margin: 0 auto; }
.page-head .updated { font-size: 14px; margin-top: 12px; opacity: .8; }
.content { max-width: 760px; margin: 0 auto; padding: 8px 24px 90px; }
.content h2 { font-size: 24px; margin: 44px 0 12px; }
.content p, .content li { color: var(--muted); font-size: 17px; }
.content p { margin-bottom: 14px; }
.content ul { padding-left: 1.2em; margin-bottom: 14px; }
.content strong { color: var(--text); }
.contact-card {
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  padding: 24px 26px; border-radius: 18px; margin: 10px 0 8px;
  background: linear-gradient(180deg, rgba(38,217,102,0.14), rgba(38,217,102,0.05)); border: 1px solid var(--border-green);
}
.contact-card strong { display: block; font-size: 19px; }
.contact-card span { color: var(--muted); font-size: 15px; }
.faq details { border: 1px solid var(--border); background: var(--card); border-radius: 14px; margin-bottom: 12px; overflow: hidden; }
.faq summary { cursor: pointer; padding: 18px 22px; font-weight: 600; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--green); font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details[open] { border-color: var(--border-green); }
.faq details p { padding: 0 22px 20px; margin: 0; }

/* fade-in on scroll */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .app-icon, .wave span, .wave::after { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
}
@media (max-width: 560px) { .nav-links { gap: 16px; font-size: 14px; } section { padding: 72px 20px; } }
