@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --bg-main: #ffffff;
    --bg-secondary: #f8f9fa;
    --border-color: #2c2c2c;
    --border-light: #e0e0e0;

    --text-primary: #1a1a2e;
    --text-secondary: #555555;

    --accent-primary: #1a1a2e;
    --accent-hover: #333366;

    --success: #28a745;
    --success-bg: rgba(40, 167, 69, 0.1);
    --danger: #dc3545;
    --danger-bg: rgba(220, 53, 69, 0.1);

    --font-main: 'Inter', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
}

/* =============================
   BACK BUTTON
   ============================= */
.back-btn {
    display: inline-block;
    font-size: 2.5rem;
    color: var(--text-primary);
    text-decoration: none;
    margin-bottom: 1rem;
    transition: var(--transition);
    cursor: pointer;
    line-height: 1;
}
.back-btn:hover {
    transform: translateX(-5px);
}

/* =============================
   PAGE CONTAINER
   ============================= */
.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 3rem;
}

/* =============================
   HOMEPAGE STYLES
   ============================= */
.home-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.home-title {
    font-size: 2.2rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-align: center;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.home-subtitle {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 3px;
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.menu-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    max-width: 800px;
}

.menu-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 180px;
    height: 160px;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    cursor: pointer;
    background: var(--bg-main);
}

.menu-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    background: var(--bg-secondary);
}

.menu-card i {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.menu-card span {
    font-weight: 700;
    font-size: 0.9rem;
    text-align: center;
    line-height: 1.3;
}

/* =============================
   PAGE TITLES (inner pages)
   ============================= */
.page-title {
    font-size: 2rem;
    font-weight: 900;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.page-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 2.5rem;
}

/* =============================
   FORM ROW (inline label + input + button)
   ============================= */
.form-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.form-row label {
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    white-space: nowrap;
}

.form-control {
    padding: 0.75rem 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    font-family: var(--font-main);
    font-size: 0.9rem;
    color: var(--text-primary);
    background: var(--bg-main);
    min-width: 300px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-hover);
    box-shadow: 0 0 0 3px rgba(26, 26, 46, 0.1);
}

.form-control::placeholder {
    color: #aaa;
}

/* =============================
   BUTTONS
   ============================= */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid var(--border-color);
    outline: none;
    font-family: var(--font-main);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

/* =============================
   TABLE
   ============================= */
.table-container {
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    border: 2px solid var(--border-color);
}

th {
    padding: 0.85rem 1rem;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    text-align: center;
}

td {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    text-align: center;
    vertical-align: middle;
}

tr:hover td {
    background: var(--bg-secondary);
}

/* =============================
   ACTION ROW (buttons below table)
   ============================= */
.action-row {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* =============================
   ALERT MESSAGES
   ============================= */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success);
}

.alert-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger);
}

/* =============================
   BADGES
   ============================= */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-positif { background: var(--success-bg); color: var(--success); }
.badge-negatif { background: var(--danger-bg); color: var(--danger); }

/* =============================
   CHARTS SECTION (Hasil Analisis)
   ============================= */
.charts-row {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.chart-box {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.chart-box h3 {
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.conclusion-box {
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    margin-bottom: 1.5rem;
}

.conclusion-box h3 {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.conclusion-box p {
    font-size: 0.9rem;
    line-height: 1.6;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* =============================
   CONFUSION MATRIX SECTION
   ============================= */
.confusion-row {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.confusion-card {
    flex: 1;
    min-width: 280px;
    max-width: 350px;
    text-align: center;
}

.confusion-card h4 {
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

/* =============================
   STATUS CARD
   ============================= */
.status-card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 2rem;
}

.status-card .label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.status-card .value {
    font-weight: 700;
    font-size: 1.1rem;
}

/* =============================
   DASHBOARD TOP (Pie + Metrics)
   ============================= */
.dashboard-top {
    display: flex;
    gap: 2rem;
    align-items: stretch;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.dashboard-top .chart-box {
    flex: 0 0 280px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.metric-cards {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    min-width: 0;
}

.metric-card {
    background: linear-gradient(135deg, #2c2c3e 0%, #3a3a52 100%);
    color: #ffffff;
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    transition: var(--transition);
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.metric-card .metric-info {
    flex: 1;
}

.metric-card .metric-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.85;
    margin-bottom: 0.25rem;
}

.metric-card .metric-value {
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.2;
}

.metric-card .metric-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

/* =============================
   TABS
   ============================= */
.tab-nav {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--border-light);
    margin-bottom: 0;
}

.tab-nav .tab-btn {
    padding: 0.75rem 1.5rem;
    font-family: var(--font-main);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: -2px;
}

.tab-nav .tab-btn:hover {
    color: var(--text-primary);
}

.tab-nav .tab-btn.active {
    color: var(--text-primary);
    border-bottom-color: var(--accent-primary);
}

.tab-content {
    display: none;
    padding: 1.5rem 0;
}

.tab-content.active {
    display: block;
}

/* =============================
   EVALUATION MODEL SECTION
   ============================= */
.eval-row {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    flex-wrap: wrap;
}

.eval-row .eval-chart {
    flex: 0 0 380px;
    text-align: center;
}

.eval-row .eval-details {
    flex: 1;
    min-width: 280px;
}

.eval-details ul {
    list-style: disc;
    padding-left: 1.25rem;
}

.eval-details ul li {
    margin-bottom: 1rem;
    font-size: 0.9rem;
    line-height: 1.5;
}

.eval-details ul li strong {
    color: var(--text-primary);
}

.eval-details ul li .eval-desc {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.15rem;
}

/* =============================
   DATATABLE OVERRIDES
   ============================= */
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_paginate {
    font-family: var(--font-main);
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}

.dataTables_wrapper .dataTables_filter input {
    font-family: var(--font-main);
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    font-size: 0.85rem;
}

.dataTables_wrapper .dataTables_length select {
    font-family: var(--font-main);
    padding: 0.3rem 0.5rem;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    font-size: 0.85rem;
}

table.dataTable thead th {
    background: #3a3a52 !important;
    color: #ffffff !important;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.75rem 1rem;
    border-color: #4a4a62 !important;
}

/* Fix ghost header ketika scrollX diaktifkan pada DataTables */
.dataTables_scrollBody thead th,
.dataTables_scrollBody thead td {
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    border-top-width: 0 !important;
    border-bottom-width: 0 !important;
    margin: 0 !important;
}
.dataTables_scrollBody thead th div.dataTables_sizing,
.dataTables_scrollBody thead td div.dataTables_sizing {
    height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
}

table.dataTable tbody td {
    font-size: 0.82rem;
    padding: 0.65rem 1rem !important;
    border-color: var(--border-light) !important;
    text-align: left;
    vertical-align: top;
}

/* =============================
   ANIMATIONS
   ============================= */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease forwards;
}

/* =============================
   RESPONSIVE
   ============================= */
@media (max-width: 768px) {
    .page-container { padding: 1.5rem; }
    .home-title { font-size: 1.5rem; }
    .menu-card { width: 140px; height: 130px; }
    .form-row { flex-direction: column; }
    .form-control { min-width: unset; width: 100%; }
    .charts-row { flex-direction: column; }
    .confusion-row { flex-direction: column; }
    .dashboard-top { flex-direction: column; }
    .dashboard-top .chart-box { flex: 1 1 100%; }
    .metric-cards { grid-template-columns: 1fr; }
    .eval-row { flex-direction: column; }
    .eval-row .eval-chart { flex: 1 1 100%; }
}