:root {
    --primary: #0d6efd;
    --primary-dark: #0b5ed7;
    --sidebar-bg: #111827;
    --sidebar-bg-2: #0b1220;
    --sidebar-text: #9ca3af;
    --sidebar-text-active: #ffffff;
    --sidebar-width: 260px;
    --sidebar-collapsed: 76px;
    --navbar-h: 62px;
    --body-bg: #f4f6fa;
    --card-radius: 14px;
    --transition: 0.22s ease;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--body-bg);
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 14.5px;
    color: #1f2937;
    overflow-x: hidden;
}

a { text-decoration: none; }

/* ===================== SIDEBAR ===================== */
.sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--sidebar-bg) 0%, var(--sidebar-bg-2) 100%);
    color: var(--sidebar-text);
    z-index: 1040;
    transition: width var(--transition), transform var(--transition);
    display: flex;
    flex-direction: column;
}

.sidebar .brand {
    height: var(--navbar-h);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 20px;
    color: #fff;
    font-weight: 700;
    font-size: 17px;
    letter-spacing: .3px;
    border-bottom: 1px solid rgba(255,255,255,.06);
    white-space: nowrap;
    overflow: hidden;
}
.sidebar .brand .brand-icon {
    min-width: 34px; height: 34px;
    display: grid; place-items: center;
    background: var(--primary);
    border-radius: 9px;
    color: #fff; font-size: 16px;
}

.sidebar .nav-wrap {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0 24px;
}
.sidebar .nav-wrap::-webkit-scrollbar { width: 6px; }
.sidebar .nav-wrap::-webkit-scrollbar-thumb { background: rgba(255,255,255,.12); border-radius: 8px; }

.sidebar .nav-heading {
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: #4b5563;
    padding: 16px 22px 6px;
    white-space: nowrap;
}

.sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 10.5px 22px;
    color: var(--sidebar-text);
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: all var(--transition);
    white-space: nowrap;
}
.sidebar .nav-link i { min-width: 20px; font-size: 16px; text-align: center; }
.sidebar .nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,.05);
}
.sidebar .nav-link.active {
    color: var(--sidebar-text-active);
    background: rgba(13,110,253,.16);
    border-left-color: var(--primary);
}

/* Collapsed state (desktop) */
body.sidebar-collapsed .sidebar { width: var(--sidebar-collapsed); }
body.sidebar-collapsed .sidebar .brand span,
body.sidebar-collapsed .sidebar .nav-link span,
body.sidebar-collapsed .sidebar .nav-heading { display: none; }
body.sidebar-collapsed .sidebar .nav-link { justify-content: center; padding: 12px; gap: 0; }
body.sidebar-collapsed .content { margin-left: var(--sidebar-collapsed); }
body.sidebar-collapsed .topbar { left: var(--sidebar-collapsed); }

/* ===================== TOPBAR ===================== */
.topbar {
    position: fixed;
    top: 0; right: 0;
    left: var(--sidebar-width);
    height: var(--navbar-h);
    background: #fff;
    border-bottom: 1px solid #e6e9ef;
    display: flex;
    align-items: center;
    padding: 0 22px;
    z-index: 1030;
    transition: left var(--transition);
}
.topbar .toggle-btn {
    border: none; background: transparent;
    font-size: 20px; color: #374151;
    width: 40px; height: 40px; border-radius: 9px;
    cursor: pointer;
}
.topbar .toggle-btn:hover { background: #f1f3f7; }

.global-search { position: relative; max-width: 340px; width: 100%; }
.global-search input {
    border-radius: 30px;
    padding-left: 40px;
    background: #f4f6fa;
    border: 1px solid transparent;
}
.global-search input:focus { background:#fff; border-color:#cdd7e5; box-shadow:none; }
.global-search .search-ic {
    position: absolute; left: 15px; top: 50%; transform: translateY(-50%);
    color: #9aa4b2;
}
.global-search .search-results {
    position: absolute; top: 46px; left: 0; right: 0;
    background:#fff; border:1px solid #e6e9ef; border-radius:12px;
    box-shadow: 0 12px 30px rgba(17,24,39,.12);
    max-height: 380px; overflow-y:auto; z-index: 1050; display:none;
}
.global-search .search-results .sr-group-title {
    font-size:11px; text-transform:uppercase; letter-spacing:.6px;
    color:#9aa4b2; padding:10px 16px 4px;
}
.global-search .search-results a.sr-item {
    display:flex; flex-direction:column; padding:8px 16px; color:#1f2937;
}
.global-search .search-results a.sr-item:hover { background:#f4f6fa; }
.global-search .search-results a.sr-item small { color:#6b7280; }

/* ===================== CONTENT ===================== */
.content {
    margin-left: var(--sidebar-width);
    padding: calc(var(--navbar-h) + 22px) 24px 40px;
    min-height: 100vh;
    transition: margin-left var(--transition);
}

.page-title { font-weight: 700; font-size: 22px; margin: 0; color:#111827; }
.breadcrumb { margin-bottom: 0; font-size: 13px; }
.breadcrumb a { color: var(--primary); }

/* ===================== CARDS ===================== */
.card {
    border: none;
    border-radius: var(--card-radius);
    box-shadow: 0 1px 3px rgba(17,24,39,.06), 0 1px 2px rgba(17,24,39,.04);
}
.card .card-header {
    background: #fff;
    border-bottom: 1px solid #eef1f6;
    font-weight: 600;
    border-radius: var(--card-radius) var(--card-radius) 0 0 !important;
    padding: 15px 20px;
}

/* Stat cards */
.stat-card {
    border-radius: var(--card-radius);
    background: #fff;
    padding: 20px;
    display: flex; align-items: center; gap: 16px;
    box-shadow: 0 1px 3px rgba(17,24,39,.06);
    height: 100%;
    transition: transform var(--transition), box-shadow var(--transition);
}
.stat-card:hover { transform: translateY(-3px); box-shadow: 0 8px 22px rgba(17,24,39,.10); }
.stat-card .stat-icon {
    width: 54px; height: 54px; border-radius: 13px;
    display: grid; place-items: center; font-size: 22px; color:#fff; flex-shrink:0;
}
.stat-card .stat-label { font-size: 12.5px; color:#6b7280; margin:0; text-transform:uppercase; letter-spacing:.4px; }
.stat-card .stat-value { font-size: 24px; font-weight: 700; margin: 2px 0 0; color:#111827; }

.bg-grad-blue   { background: linear-gradient(135deg,#0d6efd,#3d8bfd); }
.bg-grad-green  { background: linear-gradient(135deg,#198754,#20c997); }
.bg-grad-orange { background: linear-gradient(135deg,#fd7e14,#ffb020); }
.bg-grad-red    { background: linear-gradient(135deg,#dc3545,#ff6b7d); }
.bg-grad-purple { background: linear-gradient(135deg,#6f42c1,#a97bff); }
.bg-grad-teal   { background: linear-gradient(135deg,#0dcaf0,#3ddbef); }
.bg-grad-slate  { background: linear-gradient(135deg,#475569,#64748b); }
.bg-grad-pink   { background: linear-gradient(135deg,#d63384,#f06595); }

/* ===================== TABLES ===================== */
table.dataTable thead th {
    font-size: 12px; text-transform: uppercase; letter-spacing:.4px;
    color:#6b7280; font-weight:600; border-bottom:2px solid #eef1f6;
}
table.dataTable tbody td { vertical-align: middle; }
.table > :not(caption) > * > * { padding: .7rem .75rem; }
.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--primary) !important; color:#fff !important;
    border:1px solid var(--primary) !important; border-radius:7px;
}
.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius:7px !important;
}
.table-action-btn { padding: 3px 8px; font-size: 13px; border-radius: 7px; }

/* ===================== BUTTONS / MISC ===================== */
.btn { border-radius: 9px; font-weight: 500; }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.form-control, .form-select { border-radius: 9px; padding:.5rem .8rem; border-color:#dfe3ea; }
.form-control:focus, .form-select:focus { border-color:#9ec3ff; box-shadow: 0 0 0 .2rem rgba(13,110,253,.12); }
.modal-content { border:none; border-radius: 16px; }
.modal-header { border-bottom:1px solid #eef1f6; }
.modal-footer { border-top:1px solid #eef1f6; }

.avatar-sm { width:36px; height:36px; border-radius:50%; object-fit:cover; }
.avatar-lg { width:96px; height:96px; border-radius:50%; object-fit:cover; }
.avatar-initials {
    display:grid; place-items:center; border-radius:50%;
    background: var(--primary); color:#fff; font-weight:600;
}

/* Loading spinner overlay */
.spinner-overlay {
    position: fixed; inset: 0; background: rgba(255,255,255,.6);
    display: none; place-items: center; z-index: 2000;
}
.spinner-overlay.show { display: grid; }

/* Mobile overlay */
.sidebar-overlay {
    position: fixed; inset: 0; background: rgba(17,24,39,.45);
    z-index: 1035; display: none;
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 991.98px) {
    .sidebar { transform: translateX(-100%); width: var(--sidebar-width); }
    body.sidebar-open .sidebar { transform: translateX(0); }
    body.sidebar-open .sidebar-overlay { display: block; }
    .content { margin-left: 0; }
    .topbar { left: 0; }
    .global-search { max-width: 200px; }
}

@media (max-width: 575.98px) {
    .content { padding: calc(var(--navbar-h) + 16px) 14px 30px; }
    .global-search { display: none; }
    .stat-card .stat-value { font-size: 20px; }
}

/* Login page */
.auth-wrap {
    min-height: 100vh; display:grid; place-items:center;
    background: linear-gradient(135deg,#0d6efd 0%, #0b1220 100%);
    padding: 20px;
}
.auth-card {
    width: 100%; max-width: 420px; background:#fff;
    border-radius: 18px; padding: 38px 34px;
    box-shadow: 0 20px 50px rgba(0,0,0,.25);
}
.auth-card .auth-logo {
    width:56px; height:56px; border-radius:14px; background:var(--primary);
    display:grid; place-items:center; color:#fff; font-size:24px; margin:0 auto 14px;
}

.count-up { font-variant-numeric: tabular-nums; }