:root {
  --primary: #002b5e; /* Deep COBAEM Blue */
  --primary-light: #0056b3;
  --primary-dark: #001533;
  --secondary: #D4AF37; /* Gold accent */
  --accent: #00E5FF; /* Vibrant Cyan for wow factor */
  --bg: #F4F7FA;
  --bg-card: rgba(255, 255, 255, 0.85);
  --text-dark: #1E293B;
  --text-muted: #64748B;
  --border: rgba(0, 86, 179, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 43, 94, 0.07);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg);
  background-image: 
    radial-gradient(at 0% 0%, hsla(210,100%,95%,1) 0, transparent 50%),
    radial-gradient(at 100% 100%, hsla(200,100%,95%,1) 0, transparent 50%);
  background-attachment: fixed;
  color: var(--text-dark);
  line-height: 1.6;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 25px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 900px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 50px;
  padding: 15px 35px;
  z-index: 1000;
  box-shadow: 0 10px 30px rgba(0, 43, 94, 0.1);
  animation: fadeInDown 1s ease-out;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.5px;
}

.nav-logo i {
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 25px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--primary-light);
}

.nav-links a:hover::after {
  width: 100%;
}

/* Header & Hero */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: 180px 20px 150px;
  text-align: center;
  overflow: hidden;
}

.hero-shapes {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
}

.shape {
  position: absolute;
  filter: blur(80px);
  opacity: 0.4;
  border-radius: 50%;
  animation: float 10s infinite alternate ease-in-out;
}

.shape-1 { width: 400px; height: 400px; background: var(--primary-light); top: -100px; left: -10%; }
.shape-2 { width: 500px; height: 500px; background: var(--secondary); bottom: -200px; right: -10%; animation-delay: -5s; }
.shape-3 { width: 350px; height: 350px; background: var(--accent); top: 30%; left: 50%; transform: translate(-50%, -50%); animation: floatBlob 15s infinite alternate linear; }

@keyframes float { 
  0% { transform: translateY(0) scale(1); } 
  100% { transform: translateY(50px) scale(1.1); } 
}
@keyframes floatBlob { 
  0% { transform: translate(-50%, -50%) rotate(0deg) scale(1); } 
  100% { transform: translate(-30%, -60%) rotate(180deg) scale(1.3); } 
}

/* Autor y Logo Superior */
.hero-author-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  margin-bottom: 35px;
}

.hero-logo {
  height: 95px;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.4));
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.hero-logo:hover {
  transform: scale(1.08) rotate(-2deg);
}

.author-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 10px 25px;
  border-radius: 50px;
  color: white;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.author-badge .name {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.5px;
}

.author-badge .group {
  color: var(--secondary);
  font-weight: 800;
  font-size: 0.9rem;
  background: rgba(0, 0, 0, 0.25);
  padding: 4px 12px;
  border-radius: 20px;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -45px;
  left: 0;
  width: 100%;
  height: 100px;
  background: var(--bg);
  transform: skewY(-2.5deg);
  z-index: 3;
}

.hero-content {
  position: relative;
  z-index: 4;
  max-width: 850px;
  margin: 0 auto;
  animation: enterDown 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
}

.hero h1 {
  font-size: 4.5rem;
  font-weight: 900;
  margin-bottom: 25px;
  letter-spacing: -2px;
  background: linear-gradient(to right, #ffffff, #e0f2fe, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  text-shadow: none;
}

.hero p {
  font-size: 1.3rem;
  color: rgba(255,255,255,0.9);
  font-weight: 300;
  margin-bottom: 35px;
  text-shadow: 0 4px 10px rgba(0,0,0,0.3);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--accent);
  padding: 8px 25px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 25px;
  text-transform: uppercase;
  letter-spacing: 2px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.badge i {
  color: var(--secondary);
}

.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--primary-light));
  color: white;
  padding: 15px 40px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 10px 25px rgba(0, 229, 255, 0.3);
  border: 1px solid rgba(255,255,255,0.3);
}

.btn-primary:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 15px 35px rgba(0, 229, 255, 0.5);
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--primary-light));
}

.btn-primary i {
  margin-left: 8px;
}

/* Main Content Container */
.container {
  max-width: 1150px;
  margin: -80px auto 40px;
  padding: 0 20px;
  position: relative;
  z-index: 10;
}

/* Glassmorphism Sections */
.info-section, .requirements-section, .steps-section, .faq-section, .uac-section {
  background: var(--bg-card);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-radius: 30px;
  padding: 60px;
  box-shadow: var(--glass-shadow);
  border: 1px solid rgba(255, 255, 255, 0.7);
  margin-bottom: 50px;
  animation: fadeInUp 1s ease-out both;
  position: relative;
  overflow: hidden;
}

/* Shine effect on sections */
.info-section::before, .uac-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.4) 0%, transparent 60%);
  opacity: 0;
  transform: translate(-50%, -50%);
  pointer-events: none;
  transition: opacity 0.5s ease;
}

.info-section:hover::before, .uac-section:hover::before {
  opacity: 1;
}

.info-section h2, .requirements-section h2, .steps-section h2, .faq-section h2, .uac-section h2 {
  color: var(--primary);
  font-size: 2.3rem;
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  gap: 15px;
  font-weight: 900;
  letter-spacing: -1px;
}

/* Gradient Icons in titles */
.info-section h2 i, .requirements-section h2 i, .steps-section h2 i, .faq-section h2 i, .uac-section h2 i {
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 2.5rem;
}

.info-section p, .uac-section > p {
  font-size: 1.15rem;
  color: #475569;
  text-align: justify;
  line-height: 1.7;
}

.requirements-section { margin-top: 50px; }

.req-list { list-style: none; }
.req-list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 1.15rem;
  color: #334155;
}
.req-list li:last-child { border-bottom: none; }
.req-list li i {
  color: var(--primary-light);
  font-size: 1.4rem;
  width: 35px;
  text-align: center;
}

/* Grids */
.features-grid, .uac-grid, .steps-grid {
  display: grid;
  gap: 30px;
}
.features-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.uac-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.steps-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* Premium Cards */
.feature-card, .uac-card, .step-card {
  background: linear-gradient(145deg, #ffffff, #f8fafc);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: 0 10px 25px rgba(0, 43, 94, 0.04);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 1px solid rgba(255, 255, 255, 0.8);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.feature-card::before, .uac-card::before, .step-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.05) 0%, transparent 100%);
  z-index: -1;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.feature-card::after, .uac-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--primary-light), var(--accent));
  transform: scaleX(0);
  transition: transform 0.4s ease;
  transform-origin: left;
}

.feature-card:hover, .uac-card:hover, .step-card:hover {
  transform: translateY(-12px);
  border-color: rgba(0, 229, 255, 0.3);
  box-shadow: 0 20px 40px rgba(0, 86, 179, 0.12);
}

.feature-card:hover::before, .uac-card:hover::before, .step-card:hover::before { opacity: 1; }
.feature-card:hover::after, .uac-card:hover::after { transform: scaleX(1); }

.feature-card i, .uac-card i {
  font-size: 3.2rem;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 25px;
  transition: transform 0.4s ease;
}

.feature-card:hover i, .uac-card:hover i {
  transform: scale(1.15) rotate(5deg);
}

.feature-card h3, .uac-card h4, .step-card h4 {
  font-size: 1.4rem;
  margin-bottom: 15px;
  color: var(--primary-dark);
  font-weight: 800;
  letter-spacing: -0.5px;
}

.feature-card p, .uac-card p, .step-card p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.step-num {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
  color: white;
  font-size: 1.8rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 10px 20px rgba(0, 86, 179, 0.3);
}

/* FAQ Section */
.faq-list { display: flex; flex-direction: column; gap: 20px; }

.faq-item {
  background: white;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 5px 15px rgba(0,0,0,0.02);
  transition: all 0.3s ease;
}

.faq-item:hover {
  box-shadow: 0 10px 25px rgba(0, 86, 179, 0.08);
  border-color: rgba(0, 86, 179, 0.3);
}

.faq-item summary {
  padding: 25px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--primary-dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '\f078';
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--accent);
  transition: transform 0.3s ease;
  background: rgba(0, 229, 255, 0.1);
  padding: 10px;
  border-radius: 50%;
  width: 40px; height: 40px;
  display: flex; justify-content: center; align-items: center;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
  background: var(--primary-light);
  color: white;
}
.faq-item[open] summary { border-bottom: 1px solid var(--border); }
.faq-item p { padding: 25px; color: var(--text-muted); font-size: 1.05rem; line-height: 1.7; }

/* Wave Divider */
.wave-divider {
  position: relative;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  margin-top: 60px;
}
.wave-divider svg { display: block; width: calc(100% + 1.3px); height: 120px; }
.wave-divider .shape-fill { fill: #00122e; }

/* Footer */
footer {
  background: #00122e;
  color: white;
  padding: 40px 20px;
  text-align: center;
  position: relative;
}

.copyright {
  color: #64748B; font-size: 0.95rem; margin-top: 50px;
  border-top: 1px solid rgba(255,255,255,0.05); padding-top: 30px;
}

/* Animations */
@keyframes fadeInDown {
  from { opacity: 0; transform: translate(-50%, -30px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}
@keyframes enterDown {
  from { opacity: 0; transform: translateY(-40px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Staggered Animations */
.feature-card:nth-child(1), .uac-card:nth-child(1) { animation: fadeInUp 0.6s ease-out 0.2s both; }
.feature-card:nth-child(2), .uac-card:nth-child(2) { animation: fadeInUp 0.6s ease-out 0.4s both; }
.feature-card:nth-child(3), .uac-card:nth-child(3) { animation: fadeInUp 0.6s ease-out 0.6s both; }

/* Responsive */
@media (max-width: 900px) {
  .navbar { display: none; }
  .hero h1 { font-size: 3rem; }
  .hero { padding: 140px 20px 100px; }
  .info-section, .requirements-section, .steps-section, .faq-section, .uac-section { padding: 30px 20px; }
  .hero-logo { height: 75px; }
  .author-badge { padding: 8px 15px; flex-direction: column; gap: 8px; text-align: center; }
}