:root {
    --primary: #0284c7;
    --primary-dark: #0369a1;
    --primary-light: #e0f2fe;
    --secondary: #0f172a;
    --accent: #f59e0b;
    --success: #10b981;
    --danger: #ef4444;
    --bg-body: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --sidebar-width: 260px;
    --header-height: 65px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
}

/* Layout Core */
.app-container {
    display: flex;
    width: 100%;
}

.sidebar {
    width: var(--sidebar-width);
    background: #0f172a;
    color: #fff;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 20px;
    background: #090d16;
    border-bottom: 1px solid #1e293b;
}

.sidebar-header h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #38bdf8;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-menu {
    list-style: none;
    padding: 20px 10px;
    flex-grow: 1;
    overflow-y: auto;
}

.sidebar-menu li {
    margin-bottom: 6px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #94a3b8;
    text-decoration: none;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.92rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: #1e293b;
    color: #38bdf8;
}

.sidebar-footer {
    padding: 16px;
    background: #090d16;
    border-top: 1px solid #1e293b;
    font-size: 0.82rem;
}

.main-content {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    width: calc(100% - var(--sidebar-width));
}

.navbar {
    height: var(--header-height);
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    position: sticky;
    top: 0;
    z-index: 99;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.sidebar-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.3rem;
    color: var(--secondary);
    cursor: pointer;
}

.nav-badge {
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.content-body {
    padding: 25px;
    flex-grow: 1;
}

/* Page Titles */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

.page-title h1 {
    font-size: 1.5rem;
    color: var(--secondary);
}

.page-title p {
    color: var(--text-muted);
    font-size: 0.88rem;
}

/* KPI Summary Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.kpi-card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 18px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.kpi-icon {
    width: 52px;
    height: 52px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.kpi-info h3 {
    font-size: 1.7rem;
    color: var(--secondary);
    font-weight: 700;
}

.kpi-info p {
    color: var(--text-muted);
    font-size: 0.84rem;
}

/* Chart Grid */
.charts-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 20px;
    margin-bottom: 25px;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--secondary);
}

.card-body {
    padding: 20px;
}

/* Table Responsive */
.table-responsive {
    overflow-x: auto;
    width: 100%;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.table th {
    background: #f1f5f9;
    color: var(--text-muted);
    font-weight: 600;
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.table tr:hover {
    background-color: #f8fafc;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-info { background: #e0f2fe; color: #0369a1; }
.badge-warning { background: #fef3c7; color: #b45309; }
.badge-success { background: #dcfce7; color: #15803d; }
.badge-danger { background: #fee2e2; color: #b91c1c; }

/* Buttons & Inputs */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    border: none;
    transition: 0.2s;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-secondary { background: #e2e8f0; color: #334155; }
.btn-sm { padding: 5px 10px; font-size: 0.78rem; }

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-full { grid-column: 1 / -1; }

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--secondary);
}

.form-control {
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    outline: none;
    transition: border 0.2s;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

/* ========================================================
   PROGRESS TRACKER SYSTEM (5 TAHAP TERPADU)
   ======================================================== */
.progress-container {
    background: #ffffff;
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--border-color);
    margin-bottom: 25px;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.progress-bar-wrap {
    height: 10px;
    background: #e2e8f0;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 20px;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #0284c7, #10b981);
    transition: width 0.6s ease;
}

.stepper {
    display: flex;
    justify-content: space-between;
    position: relative;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 18%;
}

.step-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #e2e8f0;
    color: #64748b;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 8px;
    transition: all 0.3s ease;
}

.step-item.active .step-circle {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 0 0 4px var(--primary-light);
}

.step-item.completed .step-circle {
    background: var(--success);
    color: #fff;
}

.step-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
}

.step-item.active .step-label,
.step-item.completed .step-label {
    color: var(--secondary);
}

/* ========================================================
   RESPONSIVE BREAKPOINTS (Mobile, Tablet, Desktop)
   ======================================================== */
@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        width: 100%;
    }

    .sidebar-toggle {
        display: block;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .stepper {
        flex-direction: column;
        gap: 15px;
    }

    .step-item {
        flex-direction: row;
        width: 100%;
        gap: 12px;
        text-align: left;
    }

    .step-circle {
        margin-bottom: 0;
        flex-shrink: 0;
    }
}