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

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border: #334155;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --radius: 12px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

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

html {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    background-color: var(--bg-dark, #0f172a);
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark, #0f172a);
    color: var(--text-main);
    line-height: 1.6;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Header & Nav */
.navbar {
    background: var(--bg-dark);
    color: #ffffff;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
}

.navbar-brand {
    font-size: 1.35rem;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand span {
    color: #38bdf8;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.nav-links a:hover, .nav-links a.active {
    color: #ffffff;
}

/* Containers */
.container {
    max-width: 1600px;
    margin: 1.5rem auto;
    padding: 0 1.5rem;
    box-sizing: border-box;
    width: 100%;
    flex: 1;
}

.container-fluid {
    max-width: 100%;
    margin: 1.25rem auto;
    padding: 0 1.25rem;
    box-sizing: border-box;
    width: 100%;
    flex: 1;
}

.container-narrow {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
    box-sizing: border-box;
    width: 100%;
    flex: 1;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-title {
    font-size: 1.65rem;
    font-weight: 700;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* Central Stats & KPI Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.35rem;
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-main);
}

/* Cards & Forms */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 2rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    color: var(--text-main);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

label {
    font-size: 0.875rem;
    font-weight: 600;
    color: #cbd5e1;
}

input:not([type="checkbox"]):not([type="radio"]), select, textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.2s;
    background-color: #0f172a;
    color: #f8fafc;
}

input[type="checkbox"], input[type="radio"] {
    width: 16px;
    height: 16px;
    padding: 0;
    margin: 0;
    accent-color: var(--primary);
    cursor: pointer;
    flex-shrink: 0;
    display: inline-block;
    vertical-align: middle;
}

input:not([type="checkbox"]):not([type="radio"]):focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: #64748b;
    color: #fff;
}

.btn-secondary:hover {
    background: #475569;
}

.btn-print {
    background: #059669;
    color: #fff;
}

.btn-print:hover {
    background: #047857;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-main);
}

.btn-outline:hover {
    background: #334155;
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-success {
    background: var(--success);
    color: #fff;
}

.btn-success:hover {
    background: #059669;
}

/* Category Filter Pills */
.category-pills {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.pill-btn {
    background: #0f172a;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.4rem 0.85rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 600;
    transition: all 0.2s;
}

.pill-btn:hover {
    border-color: var(--primary);
    color: #ffffff;
}

.pill-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
}

/* Alert Banners */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-danger {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

/* Data Tables */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.data-table th, .data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    background-color: #0f172a;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.data-table td {
    color: var(--text-main);
}

.data-table tr {
    background-color: #1e293b;
    transition: background 0.15s ease;
}

.data-table tr:hover {
    background-color: #334155;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-cash { background-color: #dbeafe; color: #1e40af; }
.badge-card { background-color: #e0e7ff; color: #3730a3; }
.badge-bank { background-color: #d1fae5; color: #065f46; }
.badge-payslip { background-color: #fef3c7; color: #92400e; }

/* Image Thumbnails */
.thumbnail {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--border);
    cursor: pointer;
}

/* Printable PDF / Print CSS */
@media print {
    body {
        background-color: #ffffff;
        color: #000000;
    }

    .navbar, .btn, .no-print, form {
        display: none !important;
    }

    .container {
        max-width: 100%;
        margin: 0;
        padding: 0;
    }

    .card {
        border: none;
        box-shadow: none;
        padding: 0;
    }

    .data-table th {
        background-color: #e2e8f0 !important;
        color: #000000 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .data-table td, .data-table th {
        border: 1px solid #cbd5e1;
        padding: 0.5rem;
    }

    .thumbnail {
        width: 80px;
        height: 80px;
    }
}

/* Mobile Table Hint Banner */
.mobile-table-hint {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-size: 0.78rem;
    color: #60a5fa;
    background: rgba(37, 99, 235, 0.12);
    border: 1px dashed rgba(96, 165, 250, 0.4);
    border-radius: 6px;
    padding: 0.4rem 0.75rem;
    margin-bottom: 0.65rem;
    text-align: center;
    user-select: none;
}

/* Global Responsive Containers & Table Wrappers */
.table-container,
.table-responsive,
[style*="overflow-x: auto"] {
    width: 100% !important;
    max-width: 100% !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    touch-action: pan-x pan-y;
}

/* Mobile Responsive Utility Rules (<= 768px) */
@media (max-width: 768px) {
    .mobile-table-hint {
        display: flex !important;
    }

    .container,
    .container-fluid,
    .container-narrow {
        padding: 0 0.75rem !important;
        margin: 0.75rem auto !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .card {
        padding: 1rem 0.85rem !important;
        border-radius: 10px !important;
        margin-bottom: 1rem !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-header,
    .header-row,
    .top-bar {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.75rem !important;
    }

    .page-header > div,
    .header-row > div:last-child,
    .top-bar > div:last-child {
        width: 100% !important;
        display: flex !important;
        flex-wrap: wrap !important;
        gap: 0.5rem !important;
    }

    .page-header .btn,
    .header-row .btn,
    .top-bar .btn {
        flex: 1 1 auto !important;
        text-align: center !important;
        justify-content: center !important;
    }

    .table-container,
    .table-responsive {
        border-radius: 8px !important;
        margin-bottom: 1rem !important;
    }

    table,
    .data-table {
        font-size: 0.8rem !important;
    }

    table th,
    table td,
    .data-table th,
    .data-table td {
        padding: 0.55rem 0.5rem !important;
    }

    .form-grid {
        grid-template-columns: 1fr !important;
        gap: 0.85rem !important;
    }

    .controls-row,
    .filter-card {
        flex-direction: column !important;
        align-items: stretch !important;
        padding: 0.85rem !important;
        gap: 0.75rem !important;
    }

    .category-pills {
        width: 100% !important;
        overflow-x: auto !important;
        flex-wrap: nowrap !important;
        -webkit-overflow-scrolling: touch !important;
        padding-bottom: 0.35rem !important;
    }

    .category-pills .pill-btn {
        white-space: nowrap !important;
        flex-shrink: 0 !important;
    }

    .kpi-grid,
    .stats-grid {
        display: grid !important;
        grid-auto-flow: row !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.65rem !important;
    }

    .kpi-card,
    .stat-card {
        min-width: 0 !important;
        padding: 0.85rem !important;
    }

    .kpi-title,
    .stat-label {
        font-size: 0.72rem !important;
        word-break: break-word !important;
    }

    .kpi-value,
    .stat-value {
        font-size: 1.15rem !important;
        word-break: break-all !important;
    }

    .modal-content,
    .lightbox-content {
        width: 95% !important;
        max-width: 95% !important;
        padding: 1.25rem 1rem !important;
        margin: 1rem auto !important;
    }
}

/* Extra Small Phones (<= 480px) */
@media (max-width: 480px) {
    .container,
    .container-fluid,
    .container-narrow {
        padding: 0 0.5rem !important;
        margin: 0.5rem auto !important;
    }

    .kpi-grid,
    .stats-grid {
        grid-template-columns: 1fr !important;
    }

    .page-title {
        font-size: 1.35rem !important;
    }
}