:root {
  /* Light theme */
  --primary-color: #ffcc11;       /* Kuning khas */
  --secondary-color: #d4af37;     /* Kuning emas, versi lembut */
  --text-color: #1a1a1a;          /* Teks utama */
  --bg-color: #f8f2dc;            /* Background terang */
  --card-bg: #ffffff;             /* Card putih */
  --border-color:  #fdfd7c80;      /* Border abu tipis */
  --success-color: #28a745;       /* Hijau sukses */
}

[data-theme="dark"] {
  /* Dark theme */
  --primary-color: #f5c518;       /* Kuning khas */
  --secondary-color: #bfa005;     /* Kuning tua */
  --text-color: #eaeaea;          /* Teks terang */
  --bg-color: #121212;            /* Background utama gelap */
  --card-bg: #1e1e1e;             /* Card abu gelap */
  --border-color: #2a2a2a;        /* Border halus */
  --success-color: #34d399;       /* Hijau sukses */
}

body {
  font-family: 'Poppins', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s, color 0.3s;
  padding-top: 70px; /* supaya konten nggak ketiban navbar */
  overflow-x: hidden;
}

/* Scrollbar Styling */
body::-webkit-scrollbar {
  width: 12px; /* Lebar scrollbar */
}

body::-webkit-scrollbar-track {
  background: var(--bg-color); /* background track biar nyatu sama tema */
}

body::-webkit-scrollbar-thumb {
  background-color: var(--primary-color); /* warna kuning dari tema */
  border-radius: 10px;                    /* biar ujungnya bulat */
  border: 2px solid var(--bg-color);      /* kasih jarak, efek elegant */
}

body::-webkit-scrollbar-thumb:hover {
  background-color: var(--secondary-color); /* saat hover pakai kuning emas */
}

/* Firefox Support */
* {
  scrollbar-color: var(--primary-color) var(--bg-color); /* thumb & track */
}





.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--bg-color);
  border-bottom: 2px solid var(--border-color);
  padding: 1rem 0;
  z-index: 1000;
}

.navbar-brand {
  font-weight: 700;
  color: var(--primary-color);
  cursor: default;
}
.navbar-brand:hover {
  color: var(--primary-color) !important; /* tahan biar ga berubah */
}

.nav-link {
  color: var(--text-color);
  font-weight: 500;
  position: relative;
  margin: 0 0.5rem;
}

.nav-link:hover {
  color: var(--primary-color);
  opacity: 0.2;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--primary-color);
  transition: width 0.3s;
}

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

/* === Navbar Active State === */
.active-nav {
  color: var(--primary-color) !important;
  font-weight: 600;
}

.active-nav::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--primary-color);
}


.theme-toggle {
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 1.2rem;
  cursor: pointer;
  transition: transform 0.3s;
}

.theme-toggle:hover {
  transform: rotate(30deg);
}

/* Fix Super Sederhana: Garis Tiga Navbar Kelihatan di Dark Theme (Pakai Filter) */
.navbar-toggler-icon {
  filter: brightness(0) saturate(100%) invert(20%) sepia(100%) saturate(500%) hue-rotate(30deg) brightness(100%) contrast(100%); /* Default light: Hitam normal */
  transition: filter 0.3s ease;
}

/* Khusus Dark Theme: Balik warna garis tiga jadi putih/terang (kontras tinggi) */
[data-theme="dark"] .navbar-toggler-icon {
  filter: brightness(0) invert(1); /* Balik hitam jadi putih penuh - Super kontras di dark! */
}

/* Tambah background subtle untuk tombol (agar tombol kelihatan, opsional) */
[data-theme="dark"] .navbar-toggler {
  background-color: rgba(30, 30, 30, 0.5); /* Abu gelap subtle di dark */
  border-radius: 4px;
  padding: 0.4rem;
}

/* Hanya di Mobile */
@media (max-width: 991.98px) {
  [data-theme="dark"] .navbar-toggler {
    background-color: rgba(40, 40, 40, 0.8) !important; /* Lebih kontras di HP dark */
  }
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 3rem;
  text-align: center;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

.btn-primary-custom {
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border: none;
  color: #111;
  padding: 0.8rem 2rem;
  border-radius: 50px;
  font-weight: 500;
  transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary-custom:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(79, 70, 229, 0.3);
  color: white;
}

.footer {
  background-color: var(--border-color);
  border-top: 1px solid var(--bg-color);
  padding: 2rem 0;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 2rem;
  }
}

.theme-transition {
  position: fixed;
  inset: 0;
  background: var(--bg-color, #000);
  opacity: 0;
  animation: fadeOverlay 3s ease forwards;
  z-index: 9999;
  pointer-events: none;
}

@keyframes fadeOverlay {
  from { opacity: 1; }
  to { opacity: 0; }
}