:root {
  --green: #2e9e5b;
  --green-2: #14b8a6;
  --bg: #0d1117;
  --bg-2: #131a22;
  --card: #171f28;
  --text: #e9eef3;
  --muted: #93a1b0;
  --line: #26313d;
  --radius: 18px;
  --max: 1080px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* NAV */
.nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 20px;
  padding: 14px 24px;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 18px; }
.brand-mark {
  display: inline-grid; place-items: center;
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--green), var(--green-2));
  color: #05130c; font-weight: 900;
}
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--muted); font-weight: 500; }
.nav-links a:hover { color: var(--text); }
.lang { display: flex; gap: 6px; }
.lang-btn {
  background: transparent; border: 1px solid var(--line);
  border-radius: 6px; padding: 3px; cursor: pointer; line-height: 0;
  opacity: 0.5; transition: opacity .15s, border-color .15s;
}
.lang-btn.active, .lang-btn:hover { opacity: 1; border-color: var(--green); }
@media (max-width: 720px) { .nav-links { display: none; } }

/* HERO */
.hero {
  max-width: var(--max); margin: 0 auto;
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px;
  align-items: center; padding: 72px 24px 56px;
}
.pill {
  display: inline-block; font-size: 13px; font-weight: 600;
  color: var(--green-2); background: rgba(20,184,166,.12);
  border: 1px solid rgba(20,184,166,.3);
  padding: 6px 12px; border-radius: 999px; margin-bottom: 18px;
}
.hero h1 { font-size: 48px; line-height: 1.08; font-weight: 800; letter-spacing: -0.02em; }
.lede { color: var(--muted); font-size: 19px; margin: 18px 0 26px; max-width: 30ch; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: #000; border: 1px solid #2c2c2c; color: #fff;
  padding: 10px 16px; border-radius: 12px; transition: transform .12s, border-color .12s;
}
.badge:hover { transform: translateY(-2px); border-color: #444; }
.badge small { display: block; font-size: 14px; font-weight: 600; }
.trust { color: var(--muted); font-size: 13px; margin-top: 18px; }
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 48px; }
  .hero h1 { font-size: 36px; }
  .phone { justify-self: center; }
}

/* PHONE MOCK */
.phone {
  justify-self: end;
  width: 300px; padding: 12px;
  background: linear-gradient(160deg, #1c2530, #10161d);
  border: 1px solid var(--line); border-radius: 34px;
  box-shadow: 0 30px 70px rgba(0,0,0,.5);
}
.phone-screen {
  background: var(--bg-2); border-radius: 24px; padding: 18px 16px 20px;
  border: 1px solid var(--line);
}
.app-top { font-weight: 800; font-size: 16px; margin-bottom: 14px; color: var(--green); }
.demo-field span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.demo-input {
  display: flex; align-items: center; gap: 4px; font-size: 26px; font-weight: 800;
  border-bottom: 2px solid var(--line); padding-bottom: 6px;
}
.demo-input input {
  width: 100%; background: transparent; border: none; color: var(--text);
  font: inherit; outline: none;
}
.chip-row { display: flex; gap: 8px; margin: 14px 0 6px; }
.chip {
  font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 999px;
  background: #1e2732; color: var(--muted); border: 1px solid var(--line);
}
.chip.on { background: rgba(46,158,91,.18); color: #6ee7a0; border-color: rgba(46,158,91,.5); }
.demo-slider { display: block; margin: 12px 0 2px; }
.demo-slider span { font-size: 13px; color: var(--muted); }
.demo-slider b { color: var(--text); }
.demo-slider input[type=range] { width: 100%; accent-color: var(--green); }
.demo-out { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 12px; }
.demo-out .row { display: flex; justify-content: space-between; font-size: 14px; padding: 3px 0; color: var(--muted); }
.demo-out .row span:last-child { color: var(--text); font-weight: 600; }
.demo-out .total { font-size: 18px; margin-top: 6px; padding-top: 8px; border-top: 1px solid var(--line); }
.demo-out .total span { color: var(--green) !important; font-weight: 800; }
.demo-out .per span:last-child { color: var(--green-2); font-weight: 700; }

/* SCREENSHOTS gallery */
.shots {
  display: flex; gap: 20px; overflow-x: auto; padding: 8px 4px 20px;
  scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
}
.shots::-webkit-scrollbar { height: 8px; }
.shots::-webkit-scrollbar-thumb { background: var(--line); border-radius: 8px; }
.shot {
  flex: 0 0 auto; width: 250px; scroll-snap-align: center;
  border-radius: 30px; padding: 8px; background: #1c2530;
  border: 1px solid var(--line); box-shadow: 0 18px 40px rgba(0,0,0,.4);
}
.shot img { width: 100%; display: block; border-radius: 24px; }

/* SECTIONS */
.section { max-width: var(--max); margin: 0 auto; padding: 64px 24px; }
.section.alt { background: var(--bg-2); max-width: none; }
.section.alt > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.section h2 { font-size: 30px; font-weight: 800; text-align: center; margin-bottom: 40px; letter-spacing: -0.01em; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 820px) { .grid { grid-template-columns: 1fr; } }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; transition: transform .12s, border-color .12s;
}
.card:hover { transform: translateY(-3px); border-color: var(--green); }
.card .ic { margin-bottom: 14px; }
.card .ic svg {
  width: 30px; height: 30px;
  fill: none; stroke: var(--green); stroke-width: 1.7;
  stroke-linecap: round; stroke-linejoin: round;
}
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 15px; }

/* STEPS */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }
.step { text-align: center; padding: 12px; }
.num {
  display: inline-grid; place-items: center; width: 44px; height: 44px;
  border-radius: 50%; background: linear-gradient(135deg, var(--green), var(--green-2));
  color: #05130c; font-weight: 900; font-size: 20px; margin-bottom: 14px;
}
.step h3 { margin-bottom: 6px; }
.step p { color: var(--muted); }

/* FAQ */
.faq { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq details {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 4px 18px;
}
.faq summary {
  cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
.faq summary::after { content: "+"; color: var(--green); font-size: 22px; font-weight: 700; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); padding: 0 0 16px; }

/* FOOTER */
.footer {
  border-top: 1px solid var(--line); padding: 32px 24px; text-align: center;
  display: flex; flex-direction: column; gap: 12px; align-items: center;
}
.foot-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.foot-links { display: flex; gap: 20px; }
.foot-links a { color: var(--muted); }
.foot-links a:hover { color: var(--text); }
.foot-copy { color: var(--muted); font-size: 13px; }