/* Godlike UI/UX Styles for Edu Starship - Enhanced */
:root {
  --gold: #FFD700;
  --yellow: #FFED4A;
  --blue: #2563eb;
  --dark-blue: #1e293b;
  --white: #fff;
  --gray: #f1f5f9;
  --text: #22223b;
  --glass-bg: rgba(255, 255, 255, 0.18);
  --glass-border: rgba(255, 255, 255, 0.35);
  --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.18);
  --nav-blur: blur(12px);
  --transition: 0.3s cubic-bezier(.4,2,.6,1);
  --glow-gold: 0 0 16px 2px #FFD70099, 0 0 32px 4px #FFD70033;
  --glow-blue: 0 0 16px 2px #2563eb99, 0 0 32px 4px #2563eb33;
}

body {
  font-family: 'Inter', 'Segoe UI', 'Roboto', Arial, sans-serif;
  background: linear-gradient(135deg, var(--gray) 0%, var(--blue) 100%);
  color: var(--text);
  margin: 0;
  padding: 0;
  line-height: 1.7;
  min-height: 100vh;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

header, nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(30, 41, 59, 0.85);
  backdrop-filter: var(--nav-blur);
  box-shadow: 0 4px 24px rgba(30,41,59,0.10);
  transition: background var(--transition);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 3vw;
  max-width: 1200px;
  margin: 0 auto;
}

nav .logo {
  height: 52px;
  filter: drop-shadow(0 2px 8px var(--gold));
  transition: transform var(--transition);
  animation: logo-float 3.5s ease-in-out infinite;
}
@keyframes logo-float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-8px) scale(1.04); }
}
nav .logo:hover {
  transform: scale(1.08) rotate(-3deg);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2.5rem;
  margin: 0;
  padding: 0;
}

nav ul li a {
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: 0.04em;
  padding: 0.5rem 1.2rem;
  border-radius: 24px;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  position: relative;
  z-index: 1;
}
nav ul li a:hover, nav ul li a:focus {
  background: linear-gradient(90deg, var(--gold) 60%, var(--yellow) 100%);
  color: var(--dark-blue);
  box-shadow: var(--glow-gold);
  outline: none;
}

/* Mobile nav (hidden by default, will be toggled by JS) */
nav .menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--gold);
  font-size: 2rem;
  cursor: pointer;
}

.hero {
  background: linear-gradient(120deg, var(--dark-blue) 60%, var(--blue) 100%);
  color: var(--white);
  padding: 5rem 2rem 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 340px;
  z-index: 1;
}
.hero::before {
  content: '';
  position: absolute;
  top: -80px; left: 50%;
  width: 700px; height: 700px;
  background: radial-gradient(circle, var(--gold) 0%, transparent 70%);
  opacity: 0.13;
  transform: translateX(-50%);
  z-index: 0;
  animation: hero-bg-float 8s ease-in-out infinite;
}
@keyframes hero-bg-float {
  0%, 100% { transform: translateX(-50%) scale(1); }
  50% { transform: translateX(-50%) scale(1.08); }
}
.hero .hero-icon {
  font-size: 3.5rem;
  margin-bottom: 0.5rem;
  display: inline-block;
  animation: icon-bounce 2.5s infinite cubic-bezier(.4,2,.6,1);
  filter: drop-shadow(0 0 16px var(--gold));
}
@keyframes icon-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-18px) scale(1.08); }
}
.hero h1 {
  font-size: 3.2rem;
  margin-bottom: 1.2rem;
  font-weight: 900;
  letter-spacing: 0.03em;
  text-shadow: 0 4px 24px var(--blue), 0 1px 0 var(--gold);
  z-index: 1;
  position: relative;
}
.hero p {
  font-size: 1.35rem;
  margin-bottom: 2.2rem;
  z-index: 1;
  position: relative;
  animation: fadein 1.5s;
}
@keyframes fadein {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: none; }
}

.btn {
  background: linear-gradient(90deg, var(--gold) 60%, var(--yellow) 100%);
  color: var(--dark-blue);
  border: none;
  padding: 1rem 2.5rem;
  border-radius: 30px;
  font-size: 1.15rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 4px 24px var(--gold), 0 2px 8px rgba(30,41,59,0.08);
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
  letter-spacing: 0.04em;
  position: relative;
  overflow: hidden;
  z-index: 1;
  animation: btn-pop 1.2s cubic-bezier(.4,2,.6,1);
}
@keyframes btn-pop {
  0% { transform: scale(0.8); opacity: 0; }
  80% { transform: scale(1.08); opacity: 1; }
  100% { transform: scale(1); }
}
.btn::after {
  content: '';
  position: absolute;
  left: 50%; top: 50%;
  width: 0; height: 0;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.4s cubic-bezier(.4,2,.6,1), height 0.4s cubic-bezier(.4,2,.6,1);
  z-index: 0;
}
.btn:hover, .btn:focus {
  background: linear-gradient(90deg, var(--yellow) 60%, var(--gold) 100%);
  color: var(--blue);
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 8px 32px var(--yellow), 0 2px 8px rgba(30,41,59,0.12), var(--glow-gold);
}
.btn:hover::after, .btn:focus::after {
  width: 200%; height: 200%;
}

section {
  padding: 3.5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.card {
  background: var(--glass-bg);
  border-radius: 22px;
  box-shadow: var(--shadow), 0 0 32px 0 var(--blue) inset;
  padding: 2.5rem 2rem;
  margin-bottom: 2.5rem;
  border: 1.5px solid var(--glass-border);
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  animation: card-float 2.5s cubic-bezier(.4,2,.6,1) both;
}
@keyframes card-float {
  0% { opacity: 0; transform: translateY(32px) scale(0.98); }
  80% { opacity: 1; transform: translateY(-8px) scale(1.025); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
.card:hover, .card:focus-within {
  transform: translateY(-8px) scale(1.025) rotate(-1deg);
  box-shadow: 0 12px 48px var(--blue), 0 2px 8px var(--gold), var(--glow-blue);
  border-color: var(--gold);
  z-index: 2;
}
.card h2, .card h3 {
  color: var(--blue);
  font-weight: 800;
  margin-top: 0;
}

footer {
  background: linear-gradient(90deg, var(--dark-blue) 60%, var(--blue) 100%);
  color: var(--gold);
  text-align: center;
  padding: 2.5rem 1rem 1.5rem 1rem;
  font-size: 1.08rem;
  margin-top: 3rem;
  letter-spacing: 0.03em;
  box-shadow: 0 -2px 24px rgba(30,41,59,0.10);
}

/* Section dividers */
section + section {
  border-top: 2px solid var(--blue);
  margin-top: 2rem;
  padding-top: 3.5rem;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: 'Inter', 'Segoe UI', 'Roboto', Arial, sans-serif;
  font-weight: 900;
  letter-spacing: 0.02em;
}
h2 {
  font-size: 2.1rem;
  color: var(--gold);
  margin-bottom: 1.2rem;
}
h3 {
  font-size: 1.3rem;
  color: var(--blue);
  margin-bottom: 0.7rem;
}

input, textarea {
  font-family: inherit;
  font-size: 1.08rem;
  border-radius: 12px;
  border: 1.5px solid var(--blue);
  padding: 0.7rem 1rem;
  margin-bottom: 0.5rem;
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  box-shadow: 0 1px 4px rgba(30,41,59,0.06);
}
input:focus, textarea:focus {
  border-color: var(--gold);
  outline: none;
  box-shadow: 0 2px 12px var(--gold);
}

label {
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 0.2rem;
}

/* Floating effect for cards */
@media (hover: hover) {
  .card {
    animation: card-float-loop 6s ease-in-out infinite alternate;
  }
}
@keyframes card-float-loop {
  0% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-8px) scale(1.01); }
  100% { transform: translateY(0) scale(1); }
}

/* Responsive & Mobile Nav */
@media (max-width: 900px) {
  nav ul {
    gap: 1.2rem;
  }
  .hero h1 {
    font-size: 2.1rem;
  }
  section {
    padding: 2rem 0.5rem;
  }
  .card {
    padding: 1.2rem 0.7rem;
  }
}
@media (max-width: 700px) {
  nav ul {
    display: none;
  }
  nav .menu-toggle {
    display: block;
  }
  .hero {
    padding: 3rem 0.5rem 2rem 0.5rem;
  }
  .card {
    padding: 1rem 0.5rem;
  }
}