/* ============================================================
   DESIGN SYSTEM — AgApp Premium
   ============================================================ */

/* --- Variables ------------------------------------------------ */
:root {
    --color-primary:      #4e73df;
    --color-primary-dark: #2e59d9;
    --color-success:      #1cc88a;
    --color-warning:      #f6c23e;
    --color-danger:       #e74a3b;
    --color-info:         #36b9cc;
    --color-dark:         #3d3f4e;
    --color-light-bg:     #f4f6fc;
    --color-card-border:  #e0e4f0;
    --color-text-muted:   #8892a4;

    --font-base:    'Nunito', 'Segoe UI', system-ui, sans-serif;
    --font-size-xs: 0.73rem;
    --font-size-sm: 0.82rem;
    --font-size-md: 0.92rem;

    --radius-card:  0.6rem;
    --radius-btn:   0.4rem;
    --radius-pill:  999px;
    --shadow-card:  0 2px 12px 0 rgba(58,59,69,.10), 0 1px 3px rgba(0,0,0,.06);
    --shadow-card-hover: 0 6px 24px 0 rgba(58,59,69,.16);
    --shadow-btn:   0 3px 10px rgba(0,0,0,.12);

    --transition:       0.18s ease-in-out;
    --transition-slow:  0.3s ease-in-out;
}

/* --- Base ----------------------------------------------------- */
body {
    font-family: var(--font-base);
    background-color: var(--color-light-bg);
    color: var(--color-dark);
    -webkit-font-smoothing: antialiased;
}

/* --- Layout spacing ------------------------------------------ */
.container-fluid {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* --- Page header row ----------------------------------------- */
.page-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-dark);
    margin: 0;
    letter-spacing: -0.01em;
}

.page-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin: 0.15rem 0 0;
}

/* --- Cards ---------------------------------------------------- */
.card {
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: box-shadow var(--transition), transform var(--transition);
    background: #fff;
}

.card:hover {
    box-shadow: var(--shadow-card-hover);
}

.card-header {
    background: #fff;
    border-bottom: 1px solid var(--color-card-border);
    font-weight: 700;
    letter-spacing: 0.02em;
    font-size: var(--font-size-md);
    border-radius: var(--radius-card) var(--radius-card) 0 0 !important;
    padding: 0.9rem 1.25rem;
}

.card-body {
    padding: 1.25rem;
}

/* --- KPI stat cards ------------------------------------------- */
.stat-card {
    border-left: 4px solid var(--color-primary);
}
.stat-card.stat-success  { border-left-color: var(--color-success); }
.stat-card.stat-warning  { border-left-color: var(--color-warning); }
.stat-card.stat-danger   { border-left-color: var(--color-danger);  }
.stat-card.stat-info     { border-left-color: var(--color-info);    }

/* SB Admin 2 KPI tiles */
.border-left-primary   { border-left: 4px solid var(--color-primary) !important; }
.border-left-success   { border-left: 4px solid var(--color-success) !important; }
.border-left-warning   { border-left: 4px solid var(--color-warning) !important; }
.border-left-danger    { border-left: 4px solid var(--color-danger) !important;  }
.border-left-info      { border-left: 4px solid var(--color-info) !important;    }

.stat-card .stat-value,
.card.border-left-primary .h5,
.card.border-left-success .h5,
.card.border-left-warning .h5,
.card.border-left-danger .h5,
.card.border-left-info .h5 {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--color-dark);
    line-height: 1.2;
}

.stat-card .stat-label {
    font-size: var(--font-size-xs);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--color-text-muted);
}

.stat-card .stat-icon {
    font-size: 2rem;
    color: var(--color-card-border);
}

/* --- Buttons -------------------------------------------------- */
.btn {
    border-radius: var(--radius-btn);
    font-size: var(--font-size-sm);
    font-weight: 700;
    letter-spacing: 0.02em;
    transition: all var(--transition);
    padding: 0.45rem 1rem;
}

.btn:hover {
    box-shadow: var(--shadow-btn);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
    box-shadow: none;
}

.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}
.btn-success {
    background-color: var(--color-success);
    border-color: var(--color-success);
}
.btn-danger {
    background-color: var(--color-danger);
    border-color: var(--color-danger);
}

/* --- Tables --------------------------------------------------- */
.table thead th {
    font-size: var(--font-size-xs);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    border-top: none;
    background-color: var(--color-light-bg);
    padding: 0.8rem 0.75rem;
    white-space: nowrap;
}

.table tfoot th {
    font-size: var(--font-size-xs);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    background-color: var(--color-light-bg);
}

.table tbody tr {
    transition: background-color var(--transition);
}

.table-hover tbody tr:hover,
.table tbody tr:hover {
    background-color: rgba(78, 115, 223, 0.05) !important;
}

.table td, .table th {
    vertical-align: middle;
    font-size: var(--font-size-md);
    padding: 0.65rem 0.75rem;
}

.table-bordered {
    border-color: var(--color-card-border);
}

.table-bordered td,
.table-bordered th {
    border-color: var(--color-card-border);
}

/* --- Badges --------------------------------------------------- */
.badge {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    padding: 0.3em 0.6em;
    border-radius: 0.3rem;
}

.badge-primary { background-color: var(--color-primary); }
.badge-success { background-color: var(--color-success); }
.badge-warning { background-color: var(--color-warning); color: #fff; }
.badge-danger  { background-color: var(--color-danger); }

/* --- Alerts & Flash messages ---------------------------------- */
.alert {
    border: none;
    border-radius: var(--radius-card);
    font-size: var(--font-size-sm);
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(0,0,0,.07);
    padding: 0.85rem 1.1rem;
}

.alert-success {
    border-left: 4px solid var(--color-success);
    background: #edfaf4;
    color: #0d6b47;
}
.alert-danger {
    border-left: 4px solid var(--color-danger);
    background: #fef2f1;
    color: #8b1a14;
}
.alert-warning {
    border-left: 4px solid var(--color-warning);
    background: #fffbeb;
    color: #7c5a0b;
}
.alert-info {
    border-left: 4px solid var(--color-info);
    background: #e8f8fb;
    color: #1a6978;
}

/* --- Forms ---------------------------------------------------- */
.form-control {
    border-radius: var(--radius-btn);
    font-size: var(--font-size-md);
    border-color: var(--color-card-border);
    transition: border-color var(--transition), box-shadow var(--transition);
    padding: 0.45rem 0.75rem;
    height: auto;
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(78,115,223,.14);
}

.form-label, label {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-dark);
    letter-spacing: 0.01em;
    margin-bottom: 0.3rem;
}

.form-group {
    margin-bottom: 1rem;
}

/* --- Sidebar -------------------------------------------------- */
.sidebar {
    background: linear-gradient(180deg, #0f4c81 0%, #1e3a8a 100%) !important;
}

.sidebar .nav-item {
    position: relative;
}

.sidebar .nav-item .nav-link {
    font-size: 0.83rem;
    font-weight: 600;
    padding: 0.7rem 1rem;
    transition: background var(--transition), color var(--transition);
    border-radius: 0;
    color: rgba(255,255,255,0.82);
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.sidebar .nav-item .nav-link i,
.sidebar .nav-item .nav-link .fas,
.sidebar .nav-item .nav-link .far,
.sidebar .nav-item .nav-link .fab {
    width: 1.1rem;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.85;
    flex-shrink: 0;
}

.sidebar .nav-item .nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.12);
}

.sidebar .nav-item.active > .nav-link {
    color: #fff;
    font-weight: 700;
    background: rgba(255,255,255,0.16);
    border-right: 3px solid rgba(255,255,255,0.9);
}

.sidebar-heading {
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    opacity: 0.55;
    padding: 0.6rem 1rem 0.3rem;
    color: #fff;
}

.sidebar-brand {
    height: 4rem;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 800;
}

.sidebar-brand-text {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: 0.01em;
}

.sidebar-divider {
    border-top: 1px solid rgba(255,255,255,0.12) !important;
    margin: 0.5rem 1rem;
}

/* --- Topbar --------------------------------------------------- */
.topbar {
    border-bottom: 1px solid var(--color-card-border);
    box-shadow: 0 1px 6px rgba(0,0,0,.06) !important;
}

.topbar .nav-link {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.img-profile {
    height: 2rem;
    width: 2rem;
    object-fit: cover;
}

/* --- Pagination ----------------------------------------------- */
.pagination .page-link {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    border-color: var(--color-card-border);
    border-radius: var(--radius-btn) !important;
    margin: 0 2px;
    transition: all var(--transition);
    padding: 0.4rem 0.7rem;
}

.pagination .page-link:hover {
    background-color: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.pagination .page-item.active .page-link {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.pagination .page-item.disabled .page-link {
    color: var(--color-text-muted);
    border-color: var(--color-card-border);
}

/* --- Action icons in tables ----------------------------------- */
.icon-dark,
.action-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.9rem;
    height: 1.9rem;
    border-radius: 0.35rem;
    font-size: 0.85rem;
    transition: all var(--transition);
    color: var(--color-text-muted);
    text-decoration: none;
}

.icon-dark:hover,
.action-icon:hover {
    color: var(--color-primary);
    background: rgba(78,115,223,.1);
    text-decoration: none;
}

a.btn-delete.icon-dark:hover,
a.btn-delete.action-icon:hover {
    color: var(--color-danger);
    background: rgba(231,74,59,.1);
}

/* --- Modal ---------------------------------------------------- */
.modal-content {
    border: none;
    border-radius: 0.75rem;
    box-shadow: 0 20px 60px rgba(0,0,0,.2);
}

.modal-header {
    border-bottom: 1px solid var(--color-card-border);
    padding: 1rem 1.25rem;
}

.modal-footer {
    border-top: 1px solid var(--color-card-border);
    padding: 0.75rem 1.25rem;
}

/* --- Dropdown ------------------------------------------------- */
.dropdown-menu {
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-card);
    box-shadow: 0 8px 28px rgba(0,0,0,.12);
    font-size: var(--font-size-sm);
    padding: 0.4rem 0;
}

.dropdown-item {
    padding: 0.45rem 1rem;
    font-weight: 600;
    transition: background var(--transition);
}

.dropdown-item:hover {
    background-color: rgba(78,115,223,.08);
    color: var(--color-primary);
}

/* --- Progress bar -------------------------------------------- */
.progress {
    border-radius: var(--radius-pill);
    background-color: #eaecf4;
    height: 0.65rem;
}

.progress-bar {
    border-radius: var(--radius-pill);
    background: linear-gradient(90deg, var(--color-primary), #6b94f0);
}

/* --- Empty state ---------------------------------------------- */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-muted);
}

.empty-state i {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    opacity: 0.35;
}

.empty-state p {
    font-size: var(--font-size-sm);
    margin: 0;
}

/* --- Footer --------------------------------------------------- */
.sticky-footer {
    background: #fff !important;
    border-top: 1px solid var(--color-card-border);
    padding: 1rem 0;
}

.sticky-footer .copyright {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* --- Scroll to top ------------------------------------------- */
.scroll-to-top {
    background: var(--color-primary);
    width: 2.4rem;
    height: 2.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50% !important;
    box-shadow: var(--shadow-btn);
    transition: background var(--transition), transform var(--transition);
}

.scroll-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

/* --- Balance states ------------------------------------------ */
.balance-paid,
.balance-zero-state {
    background-color: rgba(28, 200, 138, 0.08) !important;
    color: #0d6b47;
    font-weight: 700;
}

.balance-positive {
    color: var(--color-danger);
    font-weight: 700;
}

.balance-negative {
    color: var(--color-success);
    font-weight: 700;
}

.balance-zero {
    color: var(--color-text-muted);
    font-weight: 600;
}

/* --- DataTables integration ----------------------------------- */
.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-btn);
    font-size: var(--font-size-sm);
    padding: 0.3rem 0.6rem;
    font-family: var(--font-base);
    transition: border-color var(--transition);
}

.dataTables_wrapper .dataTables_filter input:focus {
    border-color: var(--color-primary);
    outline: none;
    box-shadow: 0 0 0 0.15rem rgba(78,115,223,.12);
}

.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_length {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: var(--radius-btn) !important;
    font-size: var(--font-size-sm) !important;
    font-weight: 600;
    padding: 0.3rem 0.6rem !important;
}

/* --- Utility -------------------------------------------------- */
.text-xs  { font-size: var(--font-size-xs) !important; }
.text-sm  { font-size: var(--font-size-sm) !important; }
.fw-800   { font-weight: 800 !important; }
.fw-700   { font-weight: 700 !important; }

/* --- Responsive ----------------------------------------------- */
@media (max-width: 767.98px) {
    .container-fluid {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .table td, .table th {
        font-size: var(--font-size-sm);
        padding: 0.5rem 0.5rem;
    }

    .icon-dark, .action-icon {
        width: 1.7rem;
        height: 1.7rem;
    }
}