:root {
  --primary: #6366f1;
  --secondary: #4f46e5;
  --success: #10b981;
  --light: #f8fafc;
  --dark: #1e293b;
  --gray: #64748b;
  --warning: #f59e0b;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  min-height: 100vh;
  padding-top: 80px;
}

header {
  background: linear-gradient(120deg, var(--primary), var(--secondary));
  color: white;
  text-align: center;
  padding: 1.5rem 1rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.logo {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
  letter-spacing: -0.5px;
}

.tagline {
  opacity: 0.9;
  font-size: 1.1rem;
  margin-top: 0.5rem;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.hero {
  text-align: center;
  padding: 4rem 0 2rem;
  margin-bottom: 2rem;
}

h1 {
  font-size: 2.6rem;
  margin-bottom: 1rem;
  background: linear-gradient(to right, var(--dark), #334155);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

.subtitle {
  font-size: 1.3rem;
  color: var(--gray);
  max-width: 800px;
  margin: 0 auto 2rem;
  font-weight: 500;
}

.download-btn {
  display: inline-block;
  background: linear-gradient(120deg, var(--primary), #7c3aed);
  color: white;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.3rem;
  padding: 16px 42px;
  border-radius: 14px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
  margin: 20px 0;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.5);
}

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

.download-btn::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -60%;
  width: 20px;
  height: 200%;
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(30deg);
  transition: all 0.6s;
}

.download-btn:hover::after {
  left: 120%;
}

.download-btn-beta {
  display: inline-block;
  background: linear-gradient(120deg, #2563eb, #3b82f6);
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  padding: 10px 24px;
  border-radius: 10px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
  margin-top: 10px;
  border: none;
  cursor: pointer;
}

.download-btn-beta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.8rem;
  margin: 3rem 0;
}

.card {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
  transition: transform 0.3s ease;
  border: 1px solid #e2e8f0;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.card h3 {
  color: var(--primary);
  margin: 1rem 0;
  display: flex;
  align-items: center;
  font-size: 1.4rem;
}

.card h3:before {
  content: "✓";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--success);
  color: white;
  border-radius: 50%;
  margin-right: 10px;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.instructions,
.beta {
  background: white;
  border-radius: 16px;
  padding: 2.5rem;
  margin: 3rem 0;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  border: 1px solid #e2e8f0;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.step {
  display: flex;
  gap: 1.5rem;
}

.step-number {
  background: var(--primary);
  color: white;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
  margin-top: 4px;
  font-size: 1.1rem;
}

.legal {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 3rem 0;
}

.legal-card {
  background: #f0f9ff;
  border-left: 4px solid var(--primary);
  padding: 1.5rem;
  border-radius: 0 12px 12px 0;
}

.legal-card h3 {
  color: var(--secondary);
  margin-bottom: 0.5rem;
}

/* Donation section */
.donation-section {
  background: linear-gradient(135deg, #fff9db 0%, #ffecd2 100%);
  border-radius: 16px;
  padding: 2rem;
  margin: 3rem 0;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  border: 1px solid #ffe0b2;
}

.donation-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
  margin: 1.5rem 0;
}

.kofi-btn {
  background: linear-gradient(120deg, #ff5f5f, #ff9e6d);
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 12px 30px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(255, 95, 95, 0.3);
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.kofi-btn:hover {
  transform: scale(1.05);
}

.paypal-btn {
  background: white;
  color: #003087;
  text-decoration: none;
  font-weight: 600;
  padding: 12px 30px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  border: 2px solid #003087;
}

.paypal-btn:hover {
  transform: scale(1.05);
}

.donation-disclaimer {
  background: #fff8e6;
  border-radius: 12px;
  padding: 1rem;
  margin-top: 1.2rem;
  font-size: 0.95rem;
  color: #6b4226;
  border-left: 3px solid #ffc107;
}

.legal-disclaimer {
  background: #e3f2fd;
  border-radius: 12px;
  padding: 1rem;
  margin: 1.5rem 0;
  border-left: 3px solid #2196f3;
  font-size: 0.95rem;
}

/* Language selector */
.language-selector {
  position: absolute;
  top: 15px;
  right: 20px;
  z-index: 1001;
}

.language-selector select {
  padding: 5px 10px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.15);
  color: white;
  font-weight: 500;
  cursor: pointer;
  backdrop-filter: blur(4px);
  transition: all 0.2s ease;
}

.language-selector select:hover {
  background: rgba(255, 255, 255, 0.25);
}

.language-selector select:focus {
  outline: none;
  border-color: white;
}

.language-selector select option {
  color: var(--dark);
  background: var(--light);
}

footer {
  text-align: center;
  padding: 2rem 0;
  margin-top: 2rem;
  color: var(--gray);
  border-top: 1px solid #e2e8f0;
  font-size: 0.95rem;
}

@media (max-width: 768px) {
  body {
    padding-top: 160px;
  }

  h1 {
    font-size: 2rem;
  }

  .subtitle {
    font-size: 1.05rem;
  }

  .download-btn {
    width: 100%;
    padding: 14px;
    font-size: 1.15rem;
  }

  .step {
    flex-direction: column;
    gap: 0.5rem;
  }

  .logo {
    font-size: 1.8rem;
  }

  .language-selector {
    position: static;
    margin-top: 1rem;
    width: 100%;
  }

  .language-selector select {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }

  .donation-buttons {
    flex-direction: column;
    align-items: center;
    gap: 12px !important;
  }

  .donation-buttons a {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
}

.security-badge {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}

.badge {
  background: white;
  padding: 8px 15px;
  border-radius: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  font-size: 0.95rem;
}

.version-info {
  color: var(--gray);
  margin-top: 8px;
  font-size: 0.95rem;
  font-weight: 500;
}

.warning-box {
  background: #fffbeb;
  border-left: 4px solid #f59e0b;
  padding: 1.2rem;
  border-radius: 0 8px 8px 0;
  margin: 1.5rem 0;
  font-weight: 500;
}

.update-notice {
  background: #dbeafe;
  padding: 1rem;
  border-radius: 12px;
  margin-top: 1.5rem;
  text-align: center;
  font-weight: 500;
}

/* Animation for language change */
.fade-out {
  animation: fadeOut 0.3s forwards;
}

.fade-in {
  animation: fadeIn 0.3s forwards;
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- VirusTotal Section --- */
.virustotal {
  background-color: #f9fafb; /* Un fondo ligeramente diferente */
  border-top: 1px solid #e5e7eb;
  border-bottom: 1px solid #e5e7eb;
  padding: 4rem 1rem;
  text-align: center;
  margin: 3rem 0;
  border-radius: 16px;
}

.virustotal h2 {
  font-size: 2rem;
  color: #1f2937;
  margin-bottom: 0.5rem;
}

.virustotal p {
  max-width: 700px;
  margin: 0 auto 2rem auto;
  color: #4b5563;
  font-size: 1.1rem;
}

.virustotal .update-notice a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.virustotal .update-notice a:hover {
  text-decoration: underline;
}

/* --- Gallery Styles --- */
.gallery {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.gallery-item {
  width: 100%;
  max-width: 280px; /* Reducimos la anchura máxima */
  height: 180px; /* Establecemos una altura fija */
  object-fit: cover; /* Hacemos que la imagen cubra el espacio sin deformarse */
  object-position: top; /* Mostramos la parte superior de la imagen, útil para la más alta */
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: 2px solid transparent;
}

.gallery-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
  border-color: var(--primary);
}

/* --- Modal (Lightbox) Styles --- */
.modal {
  display: none;
  position: fixed;
  z-index: 1001;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  animation: fadeIn 0.3s;
}

.modal-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 90%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.close-button {
  position: absolute;
  top: 20px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  transition: 0.3s;
  cursor: pointer;
}

.close-button:hover,
.close-button:focus {
  color: #bbb;
  text-decoration: none;
}

/* --- Modal Navigation --- */
.prev-button,
.next-button {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -22px;
  color: white;
  font-weight: bold;
  font-size: 20px;
  transition: 0.3s;
  border-radius: 0 3px 3px 0;
  user-select: none;
}

.next-button {
  right: 0;
  border-radius: 3px 0 0 3px;
}

.prev-button:hover,
.next-button:hover {
  background-color: rgba(0, 0, 0, 0.8);
}