:root {
  --bg: #0f172a;
  --surface: #111c34;
  --surface-2: #1e2b48;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #09b8c8;
  --accent-2: #0796a3;
  --danger: #f87171;
  --radius: 14px;
  --shadow: 0 10px 24px rgba(2, 6, 23, 0.35);
  --header-height: 72px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
  background: var(--bg);
  color: var(--text);
}

h1,
h2,
h3,
p {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #042b30;
  padding: 0.5rem 0.75rem;
  border-radius: 0 0 var(--radius) var(--radius);
  z-index: 2000;
}

.skip-link:focus {
  left: 1rem;
}

.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.site-header.scrolled {
  background: rgba(15, 23, 42, 0.92);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  border-radius: 8px;
}

.menu-toggle {
  border: 1px solid var(--surface-2);
  background: var(--surface);
  border-radius: 10px;
  padding: 0.5rem;
  display: inline-flex;
  flex-direction: column;
  gap: 0.25rem;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
}

.main-nav {
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--surface);
  border-top: 1px solid var(--surface-2);
  border-bottom: 1px solid var(--surface-2);
  transform: scaleY(0);
  transform-origin: top;
  opacity: 0;
  pointer-events: none;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.main-nav.open {
  transform: scaleY(1);
  opacity: 1;
  pointer-events: auto;
}

.main-nav ul {
  display: grid;
  gap: 0.5rem;
  padding: 1rem 4%;
}

.main-nav a {
  display: inline-block;
  padding: 0.45rem 0.5rem;
  border-radius: 8px;
  color: var(--text);
}

.main-nav a:hover,
.main-nav a:focus-visible {
  background: var(--surface-2);
}

.link-acceso {
  color: #a5f3fc;
}

.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 2rem);
  background:
    linear-gradient(rgba(11, 19, 38, 0.72), rgba(11, 19, 38, 0.78)),
    url("assets/logo2.png") center / cover no-repeat;
}

.hero-content {
  display: grid;
  gap: 1rem;
}

.tag {
  color: var(--accent);
  font-weight: 600;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
}

.hero-subtitle {
  max-width: 680px;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background: #0b1326;
}

.section h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin-bottom: 0.5rem;
}

.section-intro {
  color: var(--muted);
  margin-bottom: 1.25rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.cards-grid,
.liga-grid,
.plans-grid,
.tech-grid {
  grid-template-columns: 1fr;
}

.card {
  background: var(--surface);
  border: 1px solid var(--surface-2);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin-bottom: 0.6rem;
}

.card p,
.card li {
  color: var(--muted);
}

.liga-logo {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  margin-bottom: 0.8rem;
  object-fit: contain;
  background: #ffffff;
  padding: 0.25rem;
}

.list-clean {
  display: grid;
  gap: 0.5rem;
  list-style: disc;
  padding-left: 1rem;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 0.62rem 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 0.35rem;
  transition: transform 0.15s ease, background-color 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:focus-visible,
.menu-toggle:focus-visible,
input:focus-visible,
textarea:focus-visible,
.modal-close:focus-visible,
.back-to-top:focus-visible,
a:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: #042b30;
}

.btn-primary:hover {
  background: var(--accent-2);
}

.btn-secondary,
.btn-ghost {
  background: #22314f;
  color: var(--text);
}

.btn-secondary:hover,
.btn-ghost:hover {
  background: #2d4268;
}

.plan-card.featured {
  border-color: var(--accent);
}

.form-grid {
  display: grid;
  gap: 0.9rem;
}

.form-group {
  display: grid;
  gap: 0.35rem;
}

label {
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  border: 1px solid #334155;
  border-radius: 10px;
  background: #0b1326;
  color: var(--text);
  padding: 0.68rem 0.8rem;
}

input[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: var(--danger);
}

.error-message {
  color: var(--danger);
  min-height: 1.1rem;
  font-size: 0.88rem;
}

.access-section {
  padding-top: 2rem;
}

.access-inner {
  display: grid;
  gap: 0.8rem;
}

.site-footer {
  padding: 1.4rem 0 2rem;
  border-top: 1px solid var(--surface-2);
}

.footer-inner {
  display: grid;
  gap: 1rem;
}

.footer-inner nav ul,
.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.footer-inner a {
  color: var(--muted);
}

.footer-inner a:hover,
.footer-inner a:focus-visible {
  color: var(--text);
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 1500;
}

.modal.open {
  display: block;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, 0.75);
}

.modal-content {
  position: relative;
  width: min(560px, 92%);
  margin: 14vh auto 0;
  background: var(--surface);
  border: 1px solid var(--surface-2);
  border-radius: var(--radius);
  padding: 1rem 1rem 1.2rem;
  z-index: 2;
  box-shadow: var(--shadow);
}

.modal-close {
  position: absolute;
  top: 0.45rem;
  right: 0.45rem;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

#modal-title {
  margin-bottom: 0.6rem;
  padding-right: 1.5rem;
}

#modal-description {
  color: var(--muted);
}

.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #042b30;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%) translateY(10px);
  background: #042b30;
  color: #cffafe;
  border: 1px solid #0e7490;
  border-radius: 10px;
  padding: 0.65rem 0.95rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 2000;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (min-width: 720px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .liga-grid,
  .plans-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-group.full {
    grid-column: 1 / -1;
  }

  .footer-inner {
    grid-template-columns: 1fr auto auto;
    align-items: center;
  }
}

@media (min-width: 920px) {
  .menu-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    transform: none;
    opacity: 1;
    pointer-events: auto;
    border: 0;
    background: transparent;
  }

  .main-nav ul {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0;
  }

  .main-nav a {
    padding: 0.4rem 0.58rem;
  }
}