/* ===== RESET ===== */
*{ box-sizing:border-box }
body{
  margin:0;
  font-family: Inter, system-ui, Arial, sans-serif;
  color:#fff;
}

/* ===== FONDO ===== */
body.app-landing{
  background:
    linear-gradient(180deg, rgba(0,0,0,.75), rgba(0,0,0,.95)),
    url("../img/app/fondo.png") center / cover fixed no-repeat;
}

/* ===== HERO ===== */
.app-hero{
  text-align:center;
  padding:40px 20px 30px;
}

.app-hero-img {
  width: 100%;
  max-width: 700px;
  margin: 0 auto 20px;
  display: block;
}

.app-hero h1{
  font-size:32px;
  margin:10px 0;
}

.app-hero-text{
  font-size:17px;
  opacity:.9;
}

/* CTA */
.app-cta{
  display:inline-block;
  margin:20px auto 6px;
  padding:14px 26px;
  border-radius:999px;
  background:linear-gradient(180deg,#ff3b30,#ff7a00);
  color:#fff;
  font-weight:900;
  text-decoration:none;
  box-shadow:0 10px 30px rgba(0,0,0,.5);
}

.app-url{
  display:block;
  font-size:13px;
  opacity:.75;
  margin-top:4px;
}

/* ===== CONTENEDOR ===== */
.app-container{
  max-width:560px;
  margin:0 auto;
  padding:20px;
}

/* ===== FEATURES ===== */
.app-features{
  display:grid;
  gap:20px;
  margin-top:10px;
}

.feature{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:18px;
  padding:16px;
  text-align:center;
}

.feature img{
  width:100%;
  max-width:260px;
  margin-bottom:10px;
}

/* ===== BROWSERS ===== */
.app-browsers{
  margin-top:30px;
  text-align:center;
}

.browser-icons{
  display:flex;
  justify-content:center;
  gap:18px;
  margin:12px 0;
}

.browser-icons img{
  width:52px;
}

/* ===== TUTORIAL ===== */
.app-tutorial{
  margin-top:40px;
  text-align:center;
}

.app-tutorial video{
  width:100%;
  border-radius:18px;
  box-shadow:0 20px 50px rgba(0,0,0,.6);
}

/* ===== FOOTER ===== */
.app-footer{
  margin:40px 0 20px;
  text-align:center;
  font-size:12px;
  opacity:.7;
}