/* ===== RESET Y BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: #020b18;
  font-family: 'Inter', Arial, Helvetica, sans-serif;
  color: #ffffff;
}

/* ===== HERO: IMAGEN COMPLETA ===== */
.hero-exact {
  width: 100%;
  background: #010914;
  overflow: hidden;
}

.hero-exact img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

/* ===== SECCIONES ===== */
.section {
  width: min(1180px, 92vw);
  margin: 38px auto;
}

/* ===== TARJETA DE REGISTRO ===== */
.card {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: center;
  padding: 30px;
  border: 1px solid rgba(0, 183, 255, 0.25);
  border-radius: 26px;
  background: linear-gradient(135deg, rgba(7, 26, 53, 0.88), rgba(2, 11, 24, 0.9));
  box-shadow: 0 0 45px rgba(0, 128, 255, 0.12);
}

.eyebrow {
  color: #00b7ff;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
}

h1 {
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.1;
  margin-top: 8px;
  background: linear-gradient(to right, #ffffff, #b9c8dd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

p {
  color: #b9c8dd;
  font-size: 18px;
  line-height: 1.5;
}

/* ===== FORMULARIO ===== */
.form {
  display: grid;
  gap: 14px;
}

.form input,
.form select {
  width: 100%;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid rgba(0, 183, 255, 0.3);
  background: #03142a;
  color: #ffffff;
  font-size: 16px;
}

.form input::placeholder {
  color: #6a7aa8;
}

.form select {
  appearance: none;
  cursor: pointer;
}

.form select option {
  background: #03142a;
}

.form button {
  padding: 17px 22px;
  border: 0;
  border-radius: 16px;
  background: linear-gradient(135deg, #1268ff, #f7c746);
  color: #ffffff;
  font-weight: 900;
  font-size: 17px;
  cursor: pointer;
  box-shadow: 0 12px 30px rgba(18, 104, 255, 0.25);
  transition: transform 0.2s;
}

.form button:hover {
  transform: scale(1.02);
}

/* ===== CARACTERÍSTICAS ===== */
.grid4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.grid4 article {
  padding: 24px;
  border: 1px solid rgba(0, 183, 255, 0.22);
  border-radius: 22px;
  background: rgba(7, 26, 53, 0.75);
}

.grid4 h3 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.grid4 p {
  font-size: 0.95rem;
  margin: 0;
}

/* ===== DESCARGAS ===== */
.downloads-panel {
  padding: 30px;
  border: 1px solid rgba(0, 183, 255, 0.22);
  border-radius: 22px;
  background: rgba(7, 26, 53, 0.75);
}

.downloads-panel h2 {
  text-align: center;
  margin-bottom: 20px;
  color: #ffffff;
  font-size: 1.8rem;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}

.download-grid a {
  padding: 18px;
  border-radius: 16px;
  text-align: center;
  text-decoration: none;
  color: #ffffff;
  font-weight: 800;
  background: linear-gradient(135deg, #062b56, #0d65cb);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: transform 0.2s, box-shadow 0.2s;
}

.download-grid a:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 128, 255, 0.2);
}

.download-grid a i {
  margin-right: 8px;
}

/* ===== FOOTER ===== */
.footer {
  padding: 30px;
  text-align: center;
  color: #6a7aa8;
  border-top: 1px solid rgba(0, 183, 255, 0.15);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .card,
  .grid4,
  .download-grid {
    grid-template-columns: 1fr;
  }

  .section {
    margin: 25px auto;
  }

  .hero-exact {
    min-height: auto;
  }

  .hero-exact img {
    width: 100%;
    height: auto;
  }
}

@media (max-width: 560px) {
  h1 {
    font-size: 24px;
  }

  p {
    font-size: 16px;
  }

  .card {
    padding: 22px;
  }

  .download-grid a {
    padding: 14px;
    font-size: 0.9rem;
  }
}