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

:root {
    /* Flat Slate & Emerald Color Palette */
    --primary: #0f172a;
    --primary-light: #1e293b;
    --secondary: #475569;
    --accent: #10b981;
    --accent-hover: #059669;
    --accent-light: #d1fae5;
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    
    /* Mutu Colors */
    --mutu-sp: #1d4ed8; /* Blue 700 */
    --mutu-p: #15803d;  /* Green 700 */
    --mutu-1: #0284c7;  /* Light Blue 600 */
    --mutu-2: #b45309;  /* Amber 700 */

    /* Mutu Backgrounds */
    --bg-mutu-sp: #dbeafe;
    --bg-mutu-p: #dcfce7;
    --bg-mutu-1: #e0f2fe;
    --bg-mutu-2: #fef3c7;

    /* Metrics */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Zero Shadows (Flat UI) */
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --shadow-card: none;
    --shadow-none: none;
    
    /* Zero Motion Transitions */
    --transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}

/* Global Shadow & Animation Reset */
*, *::before, *::after {
    box-shadow: none !important;
    text-shadow: none !important;
}

.shadow, .shadow-sm, .shadow-md, .shadow-lg, .shadow-xl, .shadow-2xl {
    box-shadow: none !important;
}

/* Zero Motion Reset */
.animate-fade-in, 
.animate-slide-up, 
.animate-zoom-in, 
[class*="animate-"] {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
}

/* Base Styles */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.025em;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent-hover);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Flat Layout: Sidebar */
.sidebar-wrapper {
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    box-shadow: none;
    padding: 24px 16px;
    height: 100vh;
    position: sticky;
    top: 0;
    z-index: 1020;
}

.sidebar-heading {
    margin-bottom: 32px;
    padding: 0 12px;
}

.navbar-brand-custom {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--primary) !important;
    letter-spacing: -0.025em;
}

.navbar-brand-custom i {
    color: var(--accent);
    font-size: 1.5rem;
    background: var(--accent-light);
    padding: 8px;
    border-radius: var(--radius-md);
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-menu-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.sidebar-menu-link i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
    color: #94a3b8;
    transition: var(--transition);
}

.sidebar-menu-link:hover {
    background: #f1f5f9;
    color: var(--primary);
}

.sidebar-menu-link:hover i {
    color: var(--accent);
}

.sidebar-menu-link.active {
    background: var(--accent-light);
    color: var(--accent-hover);
    font-weight: 600;
}

.sidebar-menu-link.active i {
    color: var(--accent-hover);
}

.sidebar-menu-link.text-danger:hover {
    background: #fee2e2;
    color: #b91c1c !important;
}
.sidebar-menu-link.text-danger:hover i {
    color: #b91c1c;
}

/* Topbar */
.topbar-custom {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 32px;
    box-shadow: none;
    position: sticky;
    top: 0;
    z-index: 1010;
}

.topbar-title {
    font-weight: 700;
    color: var(--primary);
    font-size: 1.25rem;
    margin: 0;
    letter-spacing: -0.025em;
}

/* Mobile Navbar */
.navbar-mobile {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    box-shadow: none;
    padding: 12px 20px;
}

/* Main Content Area */
.main-content {
    padding: 32px;
    background: var(--bg-body);
    min-height: calc(100vh - 73px);
}

/* Flat Cards */
.card-custom {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: none !important;
    overflow: hidden;
}

.card-custom:hover {
    box-shadow: none !important;
    border-color: #cbd5e1;
}

.card-header-custom {
    background: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-header-title i {
    color: var(--accent);
}

.card-body-custom {
    padding: 24px;
}

/* Stat Cards (Flat) */
.stat-card {
    padding: 24px;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: none !important;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    box-shadow: none !important;
    border-color: #cbd5e1;
    transform: none !important;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    border-radius: 4px 0 0 4px;
}

.stat-card.primary::after { background: #3b82f6; }
.stat-card.success::after { background: var(--accent); }
.stat-card.warning::after { background: #f59e0b; }
.stat-card.danger::after { background: #ef4444; }

.stat-card-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.stat-card-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
    letter-spacing: -0.025em;
}

.stat-card-icon {
    position: absolute;
    top: 24px;
    right: 24px;
    font-size: 2rem;
    color: #e2e8f0;
}

/* Buttons (Flat) */
.btn-primary-custom {
    background: var(--primary);
    color: white;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: none !important;
    transform: none !important;
    transition: var(--transition);
}

.btn-primary-custom:hover {
    background: var(--primary-light);
    color: white;
    transform: none !important;
    box-shadow: none !important;
}

.btn-accent {
    background: var(--accent);
    color: white;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: none !important;
    transform: none !important;
    transition: var(--transition);
}

.btn-accent:hover {
    background: var(--accent-hover);
    color: white;
    transform: none !important;
    box-shadow: none !important;
}

.btn-light-custom {
    background: #f1f5f9;
    color: var(--secondary);
    font-weight: 600;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: none !important;
    transform: none !important;
    transition: var(--transition);
}

.btn-light-custom:hover {
    background: #e2e8f0;
    color: var(--primary);
}

/* Badges */
.badge-custom {
    padding: 6px 12px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.badge-sp { background: var(--bg-mutu-sp); color: var(--mutu-sp); }
.badge-p { background: var(--bg-mutu-p); color: var(--mutu-p); }
.badge-1 { background: var(--bg-mutu-1); color: var(--mutu-1); }
.badge-2 { background: var(--bg-mutu-2); color: var(--mutu-2); }

/* Tables */
.table-custom {
    width: 100% !important;
    border-collapse: separate !important;
    border-spacing: 0 !important;
    margin-bottom: 0 !important;
}

.table-custom thead th {
    background: #f8fafc;
    color: #475569;
    font-weight: 700;
    font-size: 0.775rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 14px 16px;
    border-bottom: 2px solid #e2e8f0;
    border-top: none;
    vertical-align: middle;
}

.table-custom tbody td {
    padding: 14px 16px;
    vertical-align: middle;
    border-bottom: 1px solid #edf2f7;
    color: var(--text-main);
    font-size: 0.875rem;
    background: #ffffff;
}

.table-custom tbody tr:hover td {
    background: #f8fafc;
}

/* Modern Flat DataTables (Zero Layout Shift) */
.dataTables_wrapper {
    padding: 0;
    width: 100%;
}

.dataTables_wrapper .row {
    margin-left: 0 !important;
    margin-right: 0 !important;
}

.dataTables_wrapper .row > [class*="col-"] {
    padding-left: 0 !important;
    padding-right: 0 !important;
}

.dataTables_wrapper .row:first-child {
    margin-bottom: 16px !important;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dataTables_wrapper .row:last-child {
    margin-top: 16px !important;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dataTables_wrapper .dataTables_length {
    margin: 0;
}

.dataTables_wrapper .dataTables_length label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--secondary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0;
}

.dataTables_wrapper .dataTables_length select {
    border: 1px solid #cbd5e1 !important;
    background-color: #ffffff;
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 0.85rem;
    color: var(--text-main);
    outline: none;
    cursor: pointer;
    min-width: 75px;
    box-shadow: none !important;
}

.dataTables_wrapper .dataTables_filter {
    text-align: right;
    margin: 0;
}

.dataTables_wrapper .dataTables_filter label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--secondary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0;
}

.dataTables_wrapper .dataTables_filter input {
    border: 1px solid #cbd5e1 !important;
    background-color: #ffffff;
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 0.85rem;
    color: var(--text-main);
    outline: none;
    min-width: 220px;
    box-shadow: none !important;
}

.dataTables_wrapper .dataTables_filter input:focus,
.dataTables_wrapper .dataTables_length select:focus {
    border-color: var(--accent) !important;
    box-shadow: none !important;
}

.dataTables_wrapper .dataTables_info {
    font-size: 0.825rem;
    color: var(--secondary);
    font-weight: 500;
    padding-top: 4px;
}

.dataTables_wrapper .dataTables_paginate {
    text-align: right;
}

.dataTables_wrapper .dataTables_paginate ul.pagination {
    margin: 0;
    gap: 4px;
    justify-content: flex-end;
}

.dataTables_wrapper .dataTables_paginate .page-item .page-link {
    border-radius: 8px !important;
    border: 1px solid #e2e8f0;
    background: #ffffff;
    color: #475569;
    font-size: 0.825rem;
    font-weight: 600;
    padding: 6px 12px;
    box-shadow: none !important;
}

.dataTables_wrapper .dataTables_paginate .page-item .page-link:hover {
    background: #f1f5f9;
    color: var(--primary);
    border-color: #cbd5e1;
}

.dataTables_wrapper .dataTables_paginate .page-item.active .page-link {
    background: var(--accent) !important;
    border-color: var(--accent) !important;
    color: #ffffff !important;
}

.dataTables_wrapper .dataTables_paginate .page-item.disabled .page-link {
    opacity: 0.4;
    background: #f8fafc;
    border-color: #e2e8f0;
    color: #94a3b8;
}

/* Anti-FOUC DataTables (Cegah flicker saat refresh halaman) */
table.table-custom:not(.dataTable) {
    opacity: 0;
}
table.table-custom.dataTable {
    opacity: 1;
}

/* Hide default ugly DataTables ASCII sorting arrows */
table.dataTable thead .sorting:before,
table.dataTable thead .sorting:after,
table.dataTable thead .sorting_asc:before,
table.dataTable thead .sorting_asc:after,
table.dataTable thead .sorting_desc:before,
table.dataTable thead .sorting_desc:after {
    display: none !important;
}

/* Upload Area Flat */
.upload-drag-area {
    border: 2px dashed #cbd5e1;
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    background: #f8fafc;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.upload-drag-area:hover, .upload-drag-area.dragover {
    border-color: var(--accent);
    background: var(--accent-light);
}

.upload-drag-icon {
    font-size: 3rem;
    color: #94a3b8;
    margin-bottom: 16px;
}

.upload-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.upload-subtitle {
    font-size: 0.875rem;
    color: var(--secondary);
    margin: 0;
}

/* Authentication Pages Flat */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
    padding: 20px;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: none !important;
}

/* Forms Flat */
.form-control, .form-select {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 0.95rem;
    color: var(--text-main);
    background-color: #ffffff;
    box-shadow: none !important;
}

.form-control:focus, .form-select:focus {
    background-color: #ffffff;
    border-color: var(--accent);
    box-shadow: none !important;
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--primary);
    font-size: 0.875rem;
    margin-bottom: 8px;
}

/* Result Image Container Flat */
.result-img-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: none !important;
    border: 1px solid var(--border-color);
    background: #000;
}

.result-img-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    opacity: 0.9;
}

.result-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: white;
}

/* Footer Flat */
.footer-custom {
    padding: 24px;
    text-align: center;
    color: var(--secondary);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-body);
}