/* --- General Body & Basic Typography --- */
body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f0f2f5; /* Latar belakang abu-abu muda */
  color: #333;
  line-height: 1.6;
}

/* --- Main Container Styling --- */
.container {
  max-width: 960px; /* Lebar maksimum kontainer */
  margin: 20px auto; /* Pusatkan kontainer dengan margin atas/bawah 20px */
  padding: 25px;
  background-color: #ffffff;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08); /* Bayangan yang lebih lembut */
}

/* --- Header Styling --- */
header {
  background-color: #28a745; /* Hijau cerah */
  color: white;
  padding: 15px 0;
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.12);
}

header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 960px; /* Sama dengan container */
  margin: 0 auto;
  padding: 0 20px; /* Padding samping agar tidak menempel tepi */
}

.logo {
  font-size: 26px;
  font-weight: 700; /* Lebih tebal */
  letter-spacing: 0.5px;
}

header nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex; /* Untuk menata item navigasi secara horizontal */
  align-items: center; /* Pusatkan item secara vertikal */
}

header nav ul li {
  margin-left: 25px; /* Jarak antar item menu utama */
}

header nav ul li a {
  color: white;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 5px;
  transition: background-color 0.3s ease, transform 0.2s ease;
  display: block; /* Agar padding dan hover berlaku di seluruh area link */
}

header nav ul li a:hover {
  background-color: #218838; /* Hijau lebih gelap saat hover */
  transform: translateY(-2px); /* Efek sedikit naik */
}

/* --- Dropdown Menu Styling (Untuk "Manajemen Mengajar") --- */
.dropdown {
  position: relative;
  /* display: inline-block; */ /* Tidak perlu jika parent ul sudah flex */
}

.dropbtn {
  padding-right: 20px; /* Memberi ruang untuk panah kecil */
  position: relative; /* Untuk posisi panah */
  display: block; /* Penting untuk responsivitas dan area klik */
  white-space: nowrap; /* Pastikan teks tidak pecah baris */
}

/* Panah kecil untuk indikator dropdown */
.dropbtn::after {
  content: "\25BC"; /* Unicode karakter panah bawah */
  font-size: 0.7em;
  position: absolute;
  right: 5px; /* Posisi panah di kanan */
  top: 50%;
  transform: translateY(-50%);
  transition: transform 0.2s ease;
}

/* Rotasi panah saat hover */
.dropdown:hover .dropbtn::after {
  transform: translateY(-50%) rotate(180deg); /* Panah berputar saat dropdown terbuka */
}

.dropdown-content {
  display: none; /* Sembunyikan secara default */
  position: absolute;
  background-color: #f9f9f9; /* Latar belakang dropdown */
  min-width: 200px; /* Lebar minimum dropdown */
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  z-index: 10; /* Pastikan dropdown di atas konten lain */
  border-radius: 5px;
  top: 100%; /* Agar muncul di bawah tombol dropdown */
  left: 0;
  overflow: hidden; /* Pastikan konten tidak keluar dari border-radius */
}

.dropdown-content a {
  color: #333; /* Warna teks link dropdown */
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: left; /* Teks rata kiri */
  transition: background-color 0.2s ease, color 0.2s ease;
  white-space: nowrap; /* Pastikan teks link dropdown tidak pecah baris */
}

.dropdown-content a:hover {
  background-color: #e2e6ea; /* Warna hover untuk link dropdown */
  color: #28a745; /* Ubah warna teks saat hover */
}

/* Tampilkan dropdown content saat hover pada parent li */
.dropdown:hover .dropdown-content {
  display: block;
}

/* --- Admin Link Styling (Agar lebih menonjol) --- */
.admin-link {
  font-weight: bold;
}
.admin-link a {
  color: #ffeb3b !important; /* Warna kuning terang untuk link admin */
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}
.admin-link a:hover {
  background-color: #ffcd3a !important; /* Warna hover yang berbeda */
  color: #333 !important;
}

/* --- Footer Styling --- */
footer {
  text-align: center;
  padding: 25px;
  margin-top: 40px;
  background-color: #343a40; /* Abu-abu gelap */
  color: white;
  font-size: 0.9em;
  box-shadow: 0 -2px 5px rgba(0, 0, 0, 0.05);
}

/* --- Login Page Specific Styling --- */
.login-container {
  max-width: 450px;
  margin: 80px auto;
  padding: 40px;
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
  text-align: center;
}

.login-container h2 {
  color: #28a745;
  margin-bottom: 30px;
  font-size: 2em;
}

/* --- Form Group Styling (General) --- */
.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: #555;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group input[type="date"],
.form-group select {
  width: calc(100% - 22px); /* Hitung padding + border */
  padding: 11px;
  border: 1px solid #ced4da;
  border-radius: 5px;
  box-sizing: border-box; /* Penting agar padding tidak menambah lebar total */
  font-size: 1em;
}

.form-group input[type="submit"] {
  background-color: #28a745;
  color: white;
  padding: 12px 25px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1.1em;
  font-weight: 600;
  width: auto;
  display: inline-block; /* Agar bisa diatur width auto */
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.form-group input[type="submit"]:hover {
  background-color: #218838;
  transform: translateY(-2px);
}

/* --- Message Styles (Success/Error) --- */
.success-message {
  color: #155724; /* Dark green */
  background-color: #d4edda; /* Light green */
  border: 1px solid #c3e6cb;
  padding: 12px;
  border-radius: 5px;
  margin-bottom: 20px;
  text-align: center;
  font-weight: 500;
}

.error-message {
  color: #721c24; /* Dark red */
  background-color: #f8d7da; /* Light red */
  border: 1px solid #f5c6cb;
  padding: 12px;
  border-radius: 5px;
  margin-bottom: 20px;
  text-align: center;
  font-weight: 500;
}

.info-message {
  color: #004085;
  background-color: #cce5ff;
  border: 1px solid #b8daff;
  padding: 12px;
  border-radius: 5px;
  margin-bottom: 20px;
  text-align: center;
  font-weight: 500;
}

/* --- Dashboard Specific Styling (Guru & Admin) --- */
h2,
h3 {
  color: #343a40;
  margin-bottom: 20px;
}

.welcome-message {
  text-align: center;
  color: #28a745;
  margin-bottom: 30px;
  font-size: 2.2em;
  font-weight: 700;
}

hr {
  border: 0;
  height: 1px;
  background-color: #e0e0e0;
  margin: 40px 0;
}

/* Info Cards for Amapu Class (Dashboard Guru) */
.info-card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-bottom: 30px;
}

.info-card {
  background-color: #e6f7ed;
  border: 1px solid #a3e0b7;
  border-radius: 8px;
  padding: 18px 25px;
  width: calc(33.33% - 20px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
  text-align: center;
  transition: transform 0.2s ease-in-out, box-shadow 0.2s ease;
  box-sizing: border-box;
}

.info-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.12);
}

.info-card h4 {
  color: #218838;
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 1.2em;
  font-weight: 600;
}

.info-card p {
  margin: 6px 0;
  font-size: 0.95em;
  color: #555;
}

.info-card strong {
  color: #1a7e30;
  font-weight: 700;
}

/* Grid Menu Utama (Dashboard Guru & Admin) */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
}

.menu-item {
  background-color: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  padding: 25px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-sizing: border-box;
}

.menu-item:hover {
  transform: translateY(-7px);
  box-shadow: 0 7px 25px rgba(0, 0, 0, 0.15);
}

.menu-item a {
  text-decoration: none;
  color: #333;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.menu-item h4 {
  margin-top: 15px;
  margin-bottom: 8px;
  color: #28a745;
  font-size: 1.3em;
  font-weight: 600;
}

.menu-icon {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.menu-item p {
  font-size: 0.95em;
  color: #666;
  margin-bottom: 0;
}

/* --- Admin Dashboard Specific Summary Grid --- */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.summary-card {
  background-color: #f8f9fa;
  border: 1px solid #e2e6ea;
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.summary-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.summary-card h4 {
  color: #495057;
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 1.1em;
}

.summary-card p {
  font-size: 2.2em;
  font-weight: bold;
  color: #28a745;
  margin: 0;
}
.summary-card.active-semester p {
  font-size: 1.5em; /* Ukuran font lebih kecil untuk nama semester */
}
.summary-card.active-semester h4 {
  color: #007bff; /* Warna biru untuk semester aktif */
}
.summary-card.active-semester {
  background-color: #eaf6ff;
  border-color: #a8d6ff;
}

/* --- Table Styling (General for Data Tables) --- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 25px;
  background-color: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  border-radius: 8px;
  overflow: hidden; /* Untuk border-radius di tabel */
}

.data-table th,
.data-table td {
  border: 1px solid #dee2e6; /* Border abu-abu terang */
  padding: 12px 15px;
  text-align: left;
}

.data-table th {
  background-color: #e9ecef; /* Abu-abu sedikit lebih gelap */
  font-weight: 600;
  color: #495057;
  text-transform: uppercase;
  font-size: 0.9em;
}

.data-table tbody tr:nth-child(even) {
  background-color: #f8f9fa; /* Warna latar belakang selang-seling */
}

.data-table tbody tr:hover {
  background-color: #e2f3e8; /* Hijau muda saat hover */
}

.data-table select {
  width: 100%;
  padding: 8px;
  border: 1px solid #ced4da;
  border-radius: 4px;
  box-sizing: border-box;
  font-size: 0.95em;
}

/* --- Specific Table Styling for Kehadiran --- */
.attendance-table-container {
  overflow-x: auto;
  margin-top: 20px;
}
.attendance-table th,
.attendance-table td {
  white-space: nowrap;
  min-width: 60px;
}
.attendance-table th:first-child {
  position: sticky;
  left: 0;
  background-color: #e9ecef;
  z-index: 2;
}
.attendance-table td:first-child {
  position: sticky;
  left: 0;
  background-color: #fff;
  z-index: 1;
}
.attendance-table tbody tr:nth-child(even) td:first-child {
  background-color: #f8f9fa;
}

/* Warna status kehadiran */
.status-H {
  color: #28a745;
  font-weight: bold;
} /* Hadir: Hijau */
.status-S {
  color: #ffc107;
  font-weight: bold;
} /* Sakit: Kuning */
.status-I {
  color: #007bff;
  font-weight: bold;
} /* Izin: Biru */
.status-A {
  color: #dc3545;
  font-weight: bold;
} /* Alfa: Merah */

/* --- Specific Table Styling for Nilai --- */
.score-table-container {
  overflow-x: auto;
  margin-top: 20px;
}

.score-table th,
.score-table td {
  white-space: nowrap;
  min-width: 80px;
  text-align: center;
}
.score-table td:first-child {
  text-align: left;
  position: sticky;
  left: 0;
  background-color: #fff;
  z-index: 1;
}
.score-table th:first-child {
  position: sticky;
  left: 0;
  background-color: #e9ecef;
  z-index: 2;
}
.score-table tbody tr:nth-child(even) td:first-child {
  background-color: #f8f9fa;
}

.summary-column {
  background-color: #e6ffe6;
  font-weight: bold;
}
.summary-header {
  background-color: #d4edda !important;
  font-weight: bold;
}
.grand-total-column {
  background-color: #cceeff;
  font-weight: bold;
}
.grand-total-header {
  background-color: #b3e0ff !important;
  font-weight: bold;
}

/* --- Admin Management Page Specific Styling --- */
.action-buttons {
  margin-bottom: 20px;
  text-align: right;
}
.action-buttons a {
  background-color: #007bff; /* Biru */
  color: white;
  padding: 8px 15px;
  border-radius: 5px;
  text-decoration: none;
  font-size: 0.9em;
  transition: background-color 0.3s ease;
}
.action-buttons a:hover {
  background-color: #0056b3;
}
.table-actions a {
  margin-right: 5px;
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 4px;
}
.table-actions .edit {
  background-color: #ffc107; /* Kuning */
  color: #333;
}
.table-actions .edit:hover {
  background-color: #e0a800;
}
.table-actions .delete {
  background-color: #dc3545; /* Merah */
  color: white;
}
.table-actions .delete:hover {
  background-color: #c82333;
}
.form-section {
  background-color: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 8px;
  padding: 25px;
  margin-bottom: 30px;
}
.form-section h3 {
  color: #343a40;
  margin-top: 0;
  margin-bottom: 20px;
}

/* --- Responsive Adjustments --- */
@media (max-width: 992px) {
  .container,
  header nav {
    max-width: 90%;
  }
  .info-card {
    width: calc(50% - 15px); /* Dua kartu per baris */
  }
}

@media (max-width: 768px) {
  header nav {
    flex-direction: column;
    align-items: flex-start;
  }
  header nav ul {
    margin-top: 15px;
    flex-direction: column;
    width: 100%;
    align-items: flex-start; /* Untuk dropdown agar tidak center di mobile */
  }
  header nav ul li {
    margin: 5px 0;
    width: 100%;
  }
  header nav ul li a {
    display: block;
    text-align: center;
    padding: 10px;
  }
  .dropdown .dropbtn,
  .dropdown-content a {
    text-align: center; /* Pusatkan teks dropdown di mobile */
  }
  .dropdown-content {
    position: static; /* Hilangkan posisi absolut untuk mobile */
    box-shadow: none;
    border-radius: 0;
    min-width: 100%;
  }
  .info-card {
    width: 100%; /* Satu kartu per baris */
  }
  .menu-grid,
  .summary-grid {
    grid-template-columns: 1fr; /* Satu kolom di layar kecil */
  }
}

@media (max-width: 480px) {
  .login-container {
    padding: 25px;
    margin: 40px auto;
  }
  .login-container h2 {
    font-size: 1.8em;
  }
  .welcome-message {
    font-size: 1.8em;
  }
}