:root {
  /* Variabel warna utama */
  --warna-primer: #2c3e50;
  --warna-sekunder: #3498db;
  --warna-aksen: #e74c3c;
  --warna-sukses: #2ecc71;
  --warna-peringatan: #f39c12;
  --warna-bahaya: #e74c3c;
  --warna-info: #3498db;

  /* Variabel warna latar */
  --warna-latar: #f5f5f5;
  --warna-latar-gelap: #ecf0f1;
  --warna-latar-card: #ffffff;

  /* Variabel warna teks */
  --warna-teks: #333333;
  --warna-teks-terang: #ffffff;
  --warna-teks-sekunder: #7f8c8d;

  /* Variabel ukuran dan spasi */
  --radius-sudut: 4px;
  --spasi-kecil: 0.5rem;
  --spasi-sedang: 1rem;
  --spasi-besar: 1.5rem;
  --spasi-sangat-besar: 2rem;

  /* Variabel bayangan */
  --bayangan-card: 0 2px 5px rgba(0, 0, 0, 0.1);
  --bayangan-tombol: 0 1px 3px rgba(0, 0, 0, 0.12);

  /* Variabel transisi */
  --transisi-cepat: 0.2s ease;
  --transisi-sedang: 0.3s ease;

  /* Grid breakpoints - like Bootstrap */
  --breakpoint-xs: 0;
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;

  /* Container widths */
  --container-sm: 540px;
  --container-md: 720px;
  --container-lg: 960px;
  --container-xl: 1140px;
}

/* Reset dan dasar */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Base styles - Mobile First Approach */
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--warna-latar);
  color: var(--warna-teks);
  line-height: 1.6;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-size: 1rem;
  font-weight: 400;
}

a {
  color: var(--warna-sekunder);
  text-decoration: none;
  transition: color var(--transisi-cepat);
  background-color: transparent;
}

a:hover {
  color: var(--warna-primer);
  text-decoration: underline;
}

/* Container - Mobile First */
.container {
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

/* Grid system - Mobile First */
.row {
  display: flex;
  flex-wrap: wrap;
  margin-right: -15px;
  margin-left: -15px;
}

/* Default column behavior - Mobile First */
[class*="col-"] {
  position: relative;
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
}

/* Small devices (phones, 576px and up) */
.col-sm-1,
.col-sm-2,
.col-sm-3,
.col-sm-4,
.col-sm-5,
.col-sm-6,
.col-sm-7,
.col-sm-8,
.col-sm-9,
.col-sm-10,
.col-sm-11,
.col-sm-12 {
  flex: 0 0 100%;
  max-width: 100%;
}

/* Extra small devices (phones, less than 576px) */
.col-1,
.col-2,
.col-3,
.col-4,
.col-5,
.col-6,
.col-7,
.col-8,
.col-9,
.col-10,
.col-11,
.col-12 {
  flex: 0 0 100%;
  max-width: 100%;
}

/* Kartu */
.card {
  width: 100%;
  margin-bottom: var(--spasi-besar);
  box-sizing: border-box;
  background-color: var(--warna-latar-card);
  border-radius: var(--radius-sudut);
  box-shadow: var(--bayangan-card);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  word-wrap: break-word;
  background-clip: border-box;
  border: 1px solid rgba(0, 0, 0, 0.125);
}

.card-header {
  padding: var(--spasi-sedang);
  background-color: var(--warna-primer);
  color: var(--warna-teks-terang);
  font-weight: bold;
  border-bottom: 1px solid rgba(0, 0, 0, 0.125);
}

.card-body {
  padding: var(--spasi-besar);
  flex: 1 1 auto;
}

.card-footer {
  padding: var(--spasi-sedang);
  background-color: var(--warna-latar-gelap);
  border-top: 1px solid rgba(0, 0, 0, 0.125);
}

/* Tombol */
.btn {
  display: inline-block;
  font-weight: 400;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: 0.375rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: var(--radius-sudut);
  transition: all var(--transisi-cepat);
  cursor: pointer;
}

.btn:hover {
  opacity: 0.9;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--warna-sekunder);
  color: var(--warna-teks-terang);
  border-color: var(--warna-sekunder);
}

.btn-success {
  background-color: var(--warna-sukses);
  color: var(--warna-teks-terang);
  border-color: var(--warna-sukses);
}

.btn-danger {
  background-color: var(--warna-bahaya);
  color: var(--warna-teks-terang);
  border-color: var(--warna-bahaya);
}

.btn-warning {
  background-color: var(--warna-peringatan);
  color: var(--warna-teks-terang);
  border-color: var(--warna-peringatan);
}

.btn-info {
  background-color: var(--warna-info);
  color: var(--warna-teks-terang);
  border-color: var(--warna-info);
}

.btn-block {
  display: block;
  width: 100%;
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  line-height: 1.5;
  border-radius: 0.2rem;
}

.btn-lg {
  padding: 0.5rem 1rem;
  font-size: 1.25rem;
  line-height: 1.5;
  border-radius: 0.3rem;
}

/* Form */
.form-group {
  margin-bottom: var(--spasi-sedang);
}

label {
  display: block;
  margin-bottom: var(--spasi-kecil);
  font-weight: 500;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 0.375rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--warna-teks);
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid #ced4da;
  border-radius: var(--radius-sudut);
  transition: border-color var(--transisi-cepat);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
select:focus,
textarea:focus {
  border-color: var(--warna-sekunder);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

/* Tabel */
.table {
  width: 100%;
  margin-bottom: var(--spasi-besar);
  color: var(--warna-teks);
  border-collapse: collapse;
}

.table th,
.table td {
  padding: 0.75rem;
  vertical-align: top;
  border-top: 1px solid #dee2e6;
  text-align: left;
}

.table thead th {
  vertical-align: bottom;
  border-bottom: 2px solid #dee2e6;
  background-color: var(--warna-latar-gelap);
}

.table tbody tr:hover {
  background-color: rgba(0, 0, 0, 0.03);
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(0, 0, 0, 0.02);
}

.table-bordered {
  border: 1px solid #dee2e6;
}

.table-bordered th,
.table-bordered td {
  border: 1px solid #dee2e6;
}

/* Fix responsive issues with tables */
.table-responsive {
  display: block;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: var(--spasi-sedang);
}

/* Alert */
.alert {
  position: relative;
  padding: 0.75rem 1.25rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sudut);
}

.alert-success {
  color: #155724;
  background-color: #d4edda;
  border-color: #c3e6cb;
}

.alert-danger {
  color: #721c24;
  background-color: #f8d7da;
  border-color: #f5c6cb;
}

.alert-warning {
  color: #856404;
  background-color: #fff3cd;
  border-color: #ffeeba;
}

.alert-info {
  color: #0c5460;
  background-color: #d1ecf1;
  border-color: #bee5eb;
}

.alert-error {
  color: #721c24;
  background-color: #f8d7da;
  border-color: #f5c6cb;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.25em 0.4em;
  font-size: 75%;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: var(--radius-sudut);
}

.badge-primary {
  background-color: var(--warna-sekunder);
  color: var(--warna-teks-terang);
}

.badge-success {
  background-color: var(--warna-sukses);
  color: var(--warna-teks-terang);
}

.badge-danger {
  background-color: var(--warna-bahaya);
  color: var(--warna-teks-terang);
}

.badge-warning {
  background-color: var(--warna-peringatan);
  color: var(--warna-teks-terang);
}

.badge-info {
  background-color: var(--warna-info);
  color: var(--warna-teks-terang);
}

.badge-secondary {
  background-color: var(--warna-teks-sekunder);
  color: var(--warna-teks-terang);
}

/* Navigasi */
.navbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: var(--spasi-sedang) var(--spasi-sedang);
  background-color: var(--warna-primer);
  color: var(--warna-teks-terang);
  width: 100%;
  position: relative;
}

.navbar-brand {
  font-size: 1.25rem;
  font-weight: bold;
  color: var(--warna-teks-terang);
  text-decoration: none;
  display: inline-block;
  padding-top: 0.3125rem;
  padding-bottom: 0.3125rem;
  margin-right: 1rem;
  line-height: inherit;
  white-space: nowrap;
}

.navbar-nav {
  display: flex;
  flex-direction: row;
  padding-left: 0;
  margin-bottom: 0;
  list-style: none;
}

.nav-item {
  margin-left: var(--spasi-sedang);
}

.nav-link {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transisi-cepat);
  display: block;
  padding: 0.5rem 1rem;
}

.nav-link:hover {
  color: var(--warna-teks-terang);
}

.navbar-toggler {
  display: inline-block;
  background: transparent;
  border: none;
  color: var(--warna-teks-terang);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.75rem;
  line-height: 1;
  background-color: transparent;
  border-radius: 0.25rem;
}

/* Login */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.login-card {
  width: 100%;
  max-width: 400px;
  padding: var(--spasi-besar);
  background-color: var(--warna-latar-card);
  border-radius: var(--radius-sudut);
  box-shadow: var(--bayangan-card);
}

.login-header {
  text-align: center;
  margin-bottom: var(--spasi-besar);
}

.login-header h1 {
  font-size: 1.75rem;
  margin-bottom: var(--spasi-kecil);
  color: var(--warna-primer);
}

.login-form {
  margin-top: var(--spasi-besar);
}

/* Dashboard */
.dashboard-header {
  margin-bottom: var(--spasi-besar);
}

.dashboard-stats {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.stat-card {
  flex: 1;
  min-width: 200px;
  margin: 0 15px 30px;
  padding: var(--spasi-besar);
  background-color: var(--warna-latar-card);
  border-radius: var(--radius-sudut);
  box-shadow: var(--bayangan-card);
  text-align: center;
}

.stat-card h3 {
  font-size: 2rem;
  margin-bottom: var(--spasi-kecil);
  color: var(--warna-sekunder);
}

.stat-card p {
  color: var(--warna-teks-sekunder);
  margin: 0;
}

/* Sidebar - Mobile First (hidden by default on mobile) */
.sidebar {
  width: 250px;
  position: fixed;
  top: 0;
  left: -250px; /* Hidden by default on mobile */
  height: 100%;
  background-color: var(--warna-primer);
  color: var(--warna-teks-terang);
  overflow-y: auto;
  transition: left var(--transisi-sedang);
  z-index: 1030;
  box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}

.sidebar.active {
  left: 0; /* Show when active */
}

.sidebar-header {
  padding: var(--spasi-besar);
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-menu {
  padding: var(--spasi-sedang) 0;
}

.sidebar-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-menu li {
  margin-bottom: 2px;
}

.sidebar-menu a {
  display: block;
  padding: var(--spasi-sedang) var(--spasi-besar);
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: all var(--transisi-cepat);
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--warna-teks-terang);
  text-decoration: none;
}

.sidebar-menu a i {
  margin-right: var(--spasi-sedang);
  width: 20px;
  text-align: center;
}

.content-wrapper {
  margin-left: 0; /* No margin on mobile */
  padding: var(--spasi-besar);
  transition: margin-left var(--transisi-sedang);
  width: 100%;
  box-sizing: border-box;
}

/* Pagination */
.pagination {
  display: flex;
  padding-left: 0;
  list-style: none;
  border-radius: var(--radius-sudut);
}

.page-item:first-child .page-link {
  margin-left: 0;
  border-top-left-radius: var(--radius-sudut);
  border-bottom-left-radius: var(--radius-sudut);
}

.page-item:last-child .page-link {
  border-top-right-radius: var(--radius-sudut);
  border-bottom-right-radius: var(--radius-sudut);
}

.page-item.active .page-link {
  z-index: 1;
  color: var(--warna-teks-terang);
  background-color: var(--warna-sekunder);
  border-color: var(--warna-sekunder);
}

.page-item.disabled .page-link {
  color: var(--warna-teks-sekunder);
  pointer-events: none;
  cursor: auto;
  background-color: var(--warna-latar-card);
  border-color: #dee2e6;
}

.page-link {
  position: relative;
  display: block;
  padding: 0.5rem 0.75rem;
  margin-left: -1px;
  line-height: 1.25;
  color: var(--warna-sekunder);
  background-color: var(--warna-latar-card);
  border: 1px solid #dee2e6;
}

.page-link:hover {
  z-index: 2;
  color: var(--warna-primer);
  text-decoration: none;
  background-color: var(--warna-latar-gelap);
  border-color: #dee2e6;
}

/* Utilitas */
.text-center {
  text-align: center !important;
}
.text-right {
  text-align: right !important;
}
.text-left {
  text-align: left !important;
}

.mt-1 {
  margin-top: 0.25rem !important;
}
.mt-2 {
  margin-top: 0.5rem !important;
}
.mt-3 {
  margin-top: 1rem !important;
}
.mt-4 {
  margin-top: 1.5rem !important;
}
.mt-5 {
  margin-top: 3rem !important;
}

.mb-1 {
  margin-bottom: 0.25rem !important;
}
.mb-2 {
  margin-bottom: 0.5rem !important;
}
.mb-3 {
  margin-bottom: 1rem !important;
}
.mb-4 {
  margin-bottom: 1.5rem !important;
}
.mb-5 {
  margin-bottom: 3rem !important;
}

.ml-1 {
  margin-left: 0.25rem !important;
}
.ml-2 {
  margin-left: 0.5rem !important;
}
.ml-3 {
  margin-left: 1rem !important;
}
.ml-4 {
  margin-left: 1.5rem !important;
}
.ml-5 {
  margin-left: 3rem !important;
}

.mr-1 {
  margin-right: 0.25rem !important;
}
.mr-2 {
  margin-right: 0.5rem !important;
}
.mr-3 {
  margin-right: 1rem !important;
}
.mr-4 {
  margin-right: 1.5rem !important;
}
.mr-5 {
  margin-right: 3rem !important;
}

.p-1 {
  padding: 0.25rem !important;
}
.p-2 {
  padding: 0.5rem !important;
}
.p-3 {
  padding: 1rem !important;
}
.p-4 {
  padding: 1.5rem !important;
}
.p-5 {
  padding: 3rem !important;
}

.d-none {
  display: none !important;
}
.d-block {
  display: block !important;
}
.d-flex {
  display: flex !important;
}

.justify-content-between {
  justify-content: space-between !important;
}
.justify-content-center {
  justify-content: center !important;
}
.align-items-center {
  align-items: center !important;
}

.w-100 {
  width: 100% !important;
}
.h-100 {
  height: 100% !important;
}

/* Fix for mobile overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1020;
}

.sidebar-overlay.active {
  display: block;
}

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
  .container {
    max-width: var(--container-sm);
  }

  .col-sm-1 {
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-sm-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-sm-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-sm-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-sm-5 {
    flex: 0 0 41.666667%;
    max-width: 41.666667%;
  }
  .col-sm-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-sm-7 {
    flex: 0 0 58.333333%;
    max-width: 58.333333%;
  }
  .col-sm-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
  }
  .col-sm-9 {
    flex: 0 0 75%;
    max-width: 75%;
  }
  .col-sm-10 {
    flex: 0 0 83.333333%;
    max-width: 83.333333%;
  }
  .col-sm-11 {
    flex: 0 0 91.666667%;
    max-width: 91.666667%;
  }
  .col-sm-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }

  .col-md-1 {
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-md-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-md-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-md-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-md-5 {
    flex: 0 0 41.666667%;
    max-width: 41.666667%;
  }
  .col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-md-7 {
    flex: 0 0 58.333333%;
    max-width: 58.333333%;
  }
  .col-md-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
  }
  .col-md-9 {
    flex: 0 0 75%;
    max-width: 75%;
  }
  .col-md-10 {
    flex: 0 0 83.333333%;
    max-width: 83.333333%;
  }
  .col-md-11 {
    flex: 0 0 91.666667%;
    max-width: 91.666667%;
  }
  .col-md-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }

  /* Sidebar visible on desktop */
  .sidebar {
    left: 0;
  }

  .content-wrapper {
    margin-left: 250px;
    width: calc(100% - 250px);
  }

  .navbar-toggler {
    display: none;
  }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
  .container {
    max-width: var(--container-lg);
  }

  .col-lg-1 {
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-lg-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-lg-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-lg-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-lg-5 {
    flex: 0 0 41.666667%;
    max-width: 41.666667%;
  }
  .col-lg-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-lg-7 {
    flex: 0 0 58.333333%;
    max-width: 58.333333%;
  }
  .col-lg-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
  }
  .col-lg-9 {
    flex: 0 0 75%;
    max-width: 75%;
  }
  .col-lg-10 {
    flex: 0 0 83.333333%;
    max-width: 83.333333%;
  }
  .col-lg-11 {
    flex: 0 0 91.666667%;
    max-width: 91.666667%;
  }
  .col-lg-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  .container {
    max-width: var(--container-xl);
  }

  .col-xl-1 {
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-xl-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-xl-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-xl-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-xl-5 {
    flex: 0 0 41.666667%;
    max-width: 41.666667%;
  }
  .col-xl-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-xl-7 {
    flex: 0 0 58.333333%;
    max-width: 58.333333%;
  }
  .col-xl-8 {
    flex: 0 0 66.666667%;
    max-width: 66.666667%;
  }
  .col-xl-9 {
    flex: 0 0 75%;
    max-width: 75%;
  }
  .col-xl-10 {
    flex: 0 0 83.333333%;
    max-width: 83.333333%;
  }
  .col-xl-11 {
    flex: 0 0 91.666667%;
    max-width: 91.666667%;
  }
  .col-xl-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* Print styles */
@media print {
  .sidebar,
  .navbar,
  .sidebar-toggle {
    display: none !important;
  }

  .content-wrapper {
    margin-left: 0 !important;
    width: 100% !important;
  }

  a:not(.btn) {
    text-decoration: underline;
  }

  .card {
    border: 1px solid #ddd !important;
    box-shadow: none !important;
  }
}

.modal {
  display: none; /* Sembunyikan modal secara default */
  position: fixed;
  z-index: 999; /* Pastikan modal tampil di atas elemen lain */
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto; /* Scroll jika konten terlalu panjang */
  background-color: rgba(0, 0, 0, 0.4); /* Latar belakang gelap transparan */
}

.modal-content {
  background-color: #fff;
  margin: 10% auto;
  padding: 20px;
  border-radius: 10px;
  width: 90%;
  max-width: 500px;
}

.close {
  float: right;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
}