/* ==========================================================================
   1. RESET CSS & PENGATURAN GLOBAL
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #F4F9F9; 
  color: #114E60;           
  overflow-x: hidden;        
}

a {
  text-decoration: none;     
  color: inherit;            
}

ul {
  list-style: none;          
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ==========================================================================
   2. KOMPONEN NAVBAR UTAMA (Desktop & Base Style)
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent; 
  transition: all 0.4s ease;     
  padding: 25px 0;
}

.navbar-scrolled {
  background-color: #114E60;     
  padding: 15px 0;               
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1); 
}

.navbar-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  font-size: 24px;
  font-weight: 700;
  color: #114E60;
  letter-spacing: 0.5px;
  transition: color 0.4s ease;
}

.logo a span {
  color: #25CCF7; 
}

.navbar-scrolled .logo a {
  color: #FFFFFF;
}

/* Menu Navigasi Desktop */
.nav-links {
  display: flex;
  gap: 30px;
}

.nav-item {
  font-size: 16px;
  font-weight: 500;
  color: #114E60;
  transition: all 0.3s ease;
  padding: 5px 0;
  border-bottom: 2px solid transparent;
}

.navbar-scrolled .nav-item {
  color: #FFFFFF;
}

.nav-item:hover, .nav-item.active {
  color: #25CCF7 !important;
  border-bottom: 2px solid #25CCF7;
}

/* Hamburger Menu default sembunyi di desktop */
.hamburger-menu {
  display: none; 
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.hamburger-menu .bar {
  width: 25px;
  height: 3px;
  background-color: #114E60; 
  transition: all 0.3s ease;
}

.navbar-scrolled .hamburger-menu .bar {
  background-color: #FFFFFF;
}

/* ==========================================================================
   3. MEDIA QUERY GLOBAL: NAVBAR RESPONSIVE MOBILE & TABLET (ANTI-MENYATU)
   ========================================================================== */
@media screen and (max-width: 768px) {
  .navbar {
    padding: 15px 0;
    background-color: #114E60 !important; /* Kunci solid teal di mobile agar rapi saat scroll */
  }

  .navbar .logo a {
    color: #FFFFFF !important;
  }

  .hamburger-menu {
    display: flex; 
    z-index: 1001;
  }
  
  .hamburger-menu .bar {
    background-color: #FFFFFF !important; /* Garis hamburger putih agar kontras */
  }

  /* PANEL DROP MENU MOBILE */
  .nav-links {
    position: fixed;
    top: 60px; /* Sesuai dengan batas bawah bar navbar */
    left: -100%; 
    width: 100%;
    height: calc(100vh - 60px);
    background-color: #114E60; /* Latar panel Deep Teal */
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding: 40px 20px;
    transition: all 0.4s ease; 
  }

  .nav-links.mobile-active {
    left: 0; 
  }

  /* PEMBUNGKUS LI LIST DI MOBILE */
  .nav-links li {
    width: 85%;
    display: flex;
    justify-content: center;
  }

  /* GAYA BARU: MENGUBAH LINK MENJADI TOMBOL CARD KONTRAS TINGGI */
  .nav-item {
    display: block;
    width: 100%;
    text-align: center;
    padding: 14px 0;
    font-size: 18px;
    font-weight: 600;
    background-color: #F4F9F9;  /* Dasar tombol terang (Putih Keabuan) */
    color: #114E60 !important;  /* Teks tombol Gelap (Deep Teal) agar kontras */
    border-radius: 12px;
    border-bottom: none !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
  }

  /* State Aktif: Berubah warna menjadi Hijau Emerald penuh */
  .nav-item.active {
    background-color: #059669 !important; 
    color: #FFFFFF !important;            
    box-shadow: 0 4px 15px rgba(5, 150, 105, 0.3);
  }

  /* Hover/Touch State di HP */
  .nav-item:hover {
    background-color: #25CCF7 !important; 
    color: #114E60 !important;
    transform: translateY(-2px);
  }
}
/* Pastikan navbar memiliki transisi untuk perubahan warna yang halus */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent; /* Awalnya transparan */
  transition: all 0.4s ease;
  padding: 25px 0;
}

/* Saat di-scroll, JS akan menambahkan class 'navbar-scrolled' */
.navbar.navbar-scrolled {
  background-color: #114E60 !important; /* Warna solid latar navbar */
  padding: 15px 0;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* Mengubah warna teks menjadi putih saat di-scroll */
.navbar.navbar-scrolled a, 
.navbar.navbar-scrolled .nav-item {
  color: #FFFFFF !important;
}

/* Opsional: Pastikan hover tetap terlihat kontras saat di-scroll */
.navbar.navbar-scrolled .nav-item:hover {
  color: #25CCF7 !important;
}