/* --- KOMIK THEME: CSS Variables --- */
:root {
  --comic-primary: #FFC107; 
  --comic-secondary: #F44336; 
  --comic-accent: #4CAF50;
  --comic-bg: #F5F5F5; 
  --comic-surface: #FFFFFF; 
  --comic-text: #212121; 
  --comic-outline: #000000; 
  --word-highlight-bg: #FFFDE7; 
}

/*  Global Styles & Resets  */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: 'Fredoka One', cursive;
  background-color: var(--comic-bg);
  color: var(--comic-text);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}
.bg-animation {
  position: fixed;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 0;
  overflow: hidden;
}

/*  Bentuk-bentuk Komik di Background  */
.bg-animation::before,
.bg-animation::after {
  content: '';
  position: absolute;
  background-color: var(--comic-primary); 
  opacity: 0.05;
}

/* Garis Swoosh 1 */
.bg-animation::before {
  width: 300px;
  height: 20px;
  top: 20%;
  left: -300px;
  border-radius: 10px;
  transform: rotate(-20deg);
  animation: swoosh1 15s linear infinite;
}

/* Garis Swoosh 2 */
.bg-animation::after {
  width: 200px;
  height: 15px;
  top: 60%;
  left: -200px;
  border-radius: 10px;
  transform: rotate(15deg);
  background-color: var(--comic-accent);
  animation: swoosh2 20s linear infinite;
}
.container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* ===== Header & Navigation ===== */
header {
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 5px solid var(--comic-outline);
  padding: 15px 30px;
  position: sticky;
  top: 0;
  z-index: 9999; 
}
.navbar {
  display: flex;              
  justify-content: space-between; 
  align-items: center;       
  width: 100%; 
  padding: 0 30px; 
}


/*  Logo Image & Text Styling & Animation  */

.logo-link {
  display: flex; 
  align-items: center; 
  text-decoration: none; 
  transition: all 0.3s ease;
}
.logo-img {
  max-height: 60px; 
  width: auto;       
  vertical-align: middle;
  transition: all 0.3s ease;
  filter: brightness(0) sepia(100%) saturate(200%) hue-rotate(180deg);
  animation: logo-glow-img 3s ease-in-out infinite;
}

/* Teks di samping logo */
.logo-text {
  font-family: 'Bangers', cursive; 
  font-size: 2.5rem; 
  font-weight: 400;
  color: var(--comic-primary); 
  text-shadow: 2px 2px 0 var(--comic-outline); 
  line-height: 1; 
}

/* Efek saat seluruh logo di-hover */
.logo-link:hover {
  transform: scale(1.05) rotate(-2deg); 
}
.logo-link:hover .logo-img {
  animation-play-state: paused;
  filter: drop-shadow(0 0 20px var(--comic-bg)) hue-rotate(0deg);
}
.logo-link:hover .logo-text {
  color: var(--comic-bg); 
  text-shadow: 3px 3px 0 var(--comic-outline); 
}


/* Responsive untuk perangkat kecil */

@media (max-width: 768px) {
  .logo-img {
    height: 40px;
  }
  .logo-text {
    font-size: 2rem; 
  }
}
.nav-buttons {
  display: flex;
  gap: 15px;
}

.nav-btn {
  font-family: 'Bangers', cursive;
  font-size: 1.4rem;
  font-weight: 400;
  background: var(--comic-primary);
  color: var(--comic-text);
  border: 3px solid var(--comic-outline);
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
  text-decoration: none;
  box-shadow: 0 4px 0 var(--comic-outline);
  position: relative;
  top: 0;
}
.nav-btn:hover {
  background: var(--comic-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 0 var(--comic-outline);
}
.nav-btn:active, .nav-btn.active {
  background: var(--comic-secondary);
  color: var(--comic-surface);
  transform: translateY(2px);
  box-shadow: 0 2px 0 var(--comic-outline);
  top: 2px;
}

/*  Main Content  */
main {
  flex-grow: 1;
  padding: 40px 20px;
  padding-top: 100px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}
.content-section {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.content-section.active {
  display: flex;
}
h2 {
  font-family: 'Bangers', cursive;
  font-size: 3.5rem;
  margin-bottom: 20px;
  color: var(--comic-secondary);
  text-shadow: 2px 2px 0 var(--comic-outline);
}
.neon-text {
  color: var(--comic-primary);
  text-shadow: 2px 2px 0 var(--comic-outline);
}

/*  Footer  */
footer {
  text-align: center;
  padding: 20px;
  border-top: 5px solid var(--comic-outline);
  background-color: rgba(0, 0, 0, 0.8);
  color: var(--comic-bg);
  font-family: 'Bangers', cursive;
  font-size: 1.2rem;
}

/*  Animasi Khusus Tema Komik  */
@keyframes squash {
  0% { transform: scale(1); }
  50% { transform: scale(0.95, 1.05); }
  100% { transform: scale(1); }
}
.nav-btn:active {
  animation: squash 0.2s ease;
}

/*  Responsive Design  */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 15px;
  }
  .nav-buttons {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }
  .logo {
    font-size: 2.5rem;
  }
  h2 {
    font-size: 2.5rem;
  }
}
#auth-button-container {
  display: flex;
  align-items: center;
  gap: 15px;
}
.nav-username {
  font-family: 'Bangers', cursive;
  font-size: 1.4rem;
  color: var(--comic-text);
  padding: 10px 0;
  white-space: nowrap;
}