:root {
  --bg: rgb(23 23 28);
  --elev-1: #1b1b21;
  --elev-2: #101015;
  --text: #f3f4f6;
  --muted: #a3a6ad;
  --accent: #00e0a3; /* vibrante */
  --accent-2: #00b2ff;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 10% -10%, rgba(0,178,255,0.12), transparent 60%),
              radial-gradient(900px 700px at 110% 10%, rgba(0,224,163,0.12), transparent 60%),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}
.narrow { width: min(800px, 92%); }
.center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }

.grid-2 {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1.1fr 0.9fr;
}
.grid-3 {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(3, 1fr);
}

.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
}
.shadow { box-shadow: var(--shadow); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 1px solid transparent;
  padding: 0.8rem 1.1rem;
  border-radius: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  transition: transform .15s ease, box-shadow .15s ease, background .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-lg { padding: 1rem 1.25rem; font-size: 1.05rem; }
.btn-ghost { background: transparent; border-color: rgba(255,255,255,0.18); }
.btn-accent {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0a0a0f;
  box-shadow: 0 10px 24px rgba(0, 224, 163, 0.25), 0 4px 12px rgba(0, 178, 255, 0.2);
}
.btn-accent:hover {
  box-shadow: 0 12px 28px rgba(0, 224, 163, 0.3), 0 6px 14px rgba(0, 178, 255, 0.25);
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: linear-gradient(180deg, rgba(10,10,15,0.7), transparent);
  backdrop-filter: blur(10px);
}
.nav { display: flex; align-items: center; justify-content: space-between; padding: 1rem 0; }
.brand { display: inline-flex; align-items: center; gap: .65rem; color: var(--text); text-decoration: none; font-weight: 700; }
.brand img { width: 34px; height: 34px; border-radius: 8px; object-fit: cover; }
.nav-links { list-style: none; margin: 0; padding: 0; display: flex; gap: 1rem; align-items: center; }
.nav-links a { color: var(--text); text-decoration: none; opacity: .9; }
.nav-links a:hover { opacity: 1; }
.nav-toggle { display: none; }

/* Sections */
.section { padding: clamp(3rem, 6vw, 6rem) 0; }
.hero { padding-top: clamp(5rem, 8vw, 8rem); }
.hero-copy h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; margin: 0 0 .5rem; }
.hero-copy p { font-size: 1.05rem; color: var(--muted); margin: 0 0 1rem; }
.hero-ctas { display: flex; gap: .75rem; flex-wrap: wrap; }
.badges { display: flex; gap: .5rem; flex-wrap: wrap; list-style: none; padding: 0; margin: 1rem 0 0; }
.badges li { border: 1px solid rgba(255,255,255,.12); border-radius: 999px; padding: .4rem .7rem; font-size: .9rem; color: var(--muted); }

.screenshot { overflow: hidden; }
.screenshot img { width: 100%; display: block; border-radius: calc(var(--radius) - 2px); }

.features .feature { padding: 1.2rem; }
.feature .icon { font-size: 1.4rem; color: var(--accent); margin-bottom: .25rem; }
.features h3 { margin: .3rem 0 .35rem; }
.features p { color: var(--muted); margin: 0; }

.carousel { position: relative; margin-top: 2rem; overflow: hidden; }
.carousel-track { display: flex; gap: 1rem; transition: transform .4s ease; }
.carousel img { width: 100%; max-height: 360px; object-fit: cover; border-radius: 10px; }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(15,15,20,0.8); border: 1px solid rgba(255,255,255,0.1); color: var(--text); width: 40px; height: 40px; border-radius: 50%; cursor: pointer; }
.carousel-btn:hover { background: rgba(20,20,26,0.95); }
.carousel .prev { left: 10px; }
.carousel .next { right: 10px; }

.ribbon { background: radial-gradient(800px 400px at 50% 0%, rgba(0,224,163,0.08), transparent 60%), #111118; border-top: 1px solid rgba(255,255,255,0.06); border-bottom: 1px solid rgba(255,255,255,0.06); }

.buy .container { align-items: center; }
.buy .card { padding: 1.5rem; display: grid; gap: 1rem; grid-template-columns: 1.2fr .8fr; }
.buy-actions { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; justify-content: flex-end; }

.footer { padding: 2rem 0; border-top: 1px solid rgba(255,255,255,0.06); background: var(--elev-2); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.footer a { color: var(--muted); text-decoration: none; }
.footer a:hover { color: var(--text); }

/* Animations */
[data-animate] { opacity: 0; transform: translateY(12px); transition: opacity .5s ease, transform .5s ease; }
[data-animate].visible { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 980px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .buy .card { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; background: transparent; color: var(--text); border: 1px solid rgba(255,255,255,0.12); padding: .4rem .6rem; border-radius: 8px; }
  .nav-links { position: absolute; top: 64px; right: 4%; background: #111118; border: 1px solid rgba(255,255,255,0.08); border-radius: 10px; padding: .6rem; display: none; flex-direction: column; gap: .4rem; box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
}