:root {
    --primary: #0B2FCE;
    --primary-dark: #012DCE;
    --primary-light: #e8ecfd;
    --accent: #00C851;
    --accent-dark: #00A544;
    --accent-light: #e3faec;
    --sidebar-width: 250px;
    --bg: #f4f7fb;
    --card-bg: #ffffff;
    --text: #1b2430;
    --border: #e3e8ef;
}

[data-theme="dark"] {
    --bg: #10151c;
    --card-bg: #1a212c;
    --text: #e9eef5;
    --border: #2a3340;
    --primary-light: #142036;
    --accent-light: #113322;
}

* { box-sizing: border-box; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', Roboto, Arial, sans-serif;
    transition: background .25s ease, color .25s ease;
}

/* ---------- Layout ---------- */
.app-wrapper { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--primary-dark), var(--primary));
    color: #fff;
    position: fixed;
    top: 0; bottom: 0; left: 0;
    overflow-y: auto;
    z-index: 1040;
    transition: transform .25s ease;
}
.sidebar .brand {
    padding: 16px 20px; font-weight: 700; font-size: 1.15rem;
    display: flex; align-items: center; gap: 10px;
    border-bottom: 1px solid rgba(255,255,255,.15);
}
.sidebar .nav { gap: 0; }
.sidebar a.nav-link {
    color: rgba(255,255,255,.85);
    padding: 8px 20px;
    margin: 1px 0;
    display: flex; align-items: center; gap: 10px;
    line-height: 1.3;
    border-left: 3px solid transparent;
    font-size: .88rem;
    transition: background .15s ease, border-color .15s ease;
}
.sidebar a.nav-link i { width: 18px; text-align: center; flex-shrink: 0; }
.sidebar a.nav-link:hover, .sidebar a.nav-link.active {
    background: rgba(255,255,255,.12);
    border-left-color: #fff;
    color: #fff;
}
.sidebar .nav-section {
    padding: 10px 20px 4px;
    margin-top: 4px;
    font-size: .68rem;
    text-transform: uppercase;
    opacity: .55;
    letter-spacing: .06em;
    border-top: 1px solid rgba(255,255,255,.08);
}
.sidebar .nav-section:first-of-type { border-top: none; margin-top: 0; }

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

.topbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 20px;
    display: flex; align-items: center; justify-content: space-between;
    position: sticky; top: 0; z-index: 1030;
}
.page-body { padding: 22px; }

@media (max-width: 991.98px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.show { transform: translateX(0); }
    .main-content { margin-left: 0; width: 100%; }
}

/* ---------- Cards ---------- */
.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px;
    display: flex; align-items: center; gap: 14px;
    box-shadow: 0 2px 10px rgba(11,47,206,.08);
    height: 100%;
}
.stat-icon {
    width: 52px; height: 52px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; color: #fff;
    background: var(--primary);
    flex-shrink: 0;
}
.stat-card .stat-value { font-size: 1.4rem; font-weight: 700; }
.stat-card .stat-label { font-size: .8rem; color: #8a96a3; }

.card { border: 1px solid var(--border); border-radius: 14px; background: var(--card-bg); }
.card-header { background: transparent; border-bottom: 1px solid var(--border); font-weight: 600; }

/* ---------- Tables ---------- */
.table thead th {
    background: var(--primary-light);
    color: var(--primary-dark);
    font-size: .8rem; text-transform: uppercase; letter-spacing: .03em;
    border-bottom: none;
}
.table-responsive {
    border-radius: 12px;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
}

/* On mobile, tables become stacked cards so ALL data is visible without scrolling */
@media (max-width: 767.98px) {
    .table-responsive table.table-mobile-cards thead { display: none; }
    .table-responsive table.table-mobile-cards,
    .table-responsive table.table-mobile-cards tbody,
    .table-responsive table.table-mobile-cards tr,
    .table-responsive table.table-mobile-cards td {
        display: block; width: 100%;
    }
    .table-responsive table.table-mobile-cards tr {
        margin-bottom: 12px; border: 1px solid var(--border); border-radius: 10px;
        padding: 4px 14px; background: var(--card-bg);
    }
    .table-responsive table.table-mobile-cards tr:hover { background: var(--card-bg); }
    .table-responsive table.table-mobile-cards td {
        display: flex; justify-content: space-between; align-items: center;
        gap: 12px; border: none; border-bottom: 1px solid var(--border);
        padding: 9px 0; text-align: right; white-space: normal;
    }
    .table-responsive table.table-mobile-cards td:last-child { border-bottom: none; }
    .table-responsive table.table-mobile-cards td::before {
        content: attr(data-label); font-weight: 600; color: var(--primary-dark);
        text-align: left; margin-right: auto; padding-right: 10px; flex-shrink: 0;
    }
    .table-responsive table.table-mobile-cards td:empty,
    .table-responsive table.table-mobile-cards td[data-label=""] { display: none; }
}

/* ---------- Status badges ---------- */
.badge-status { padding: 6px 10px; border-radius: 30px; font-size: .72rem; font-weight: 600; }
.badge-Pending { background:#fff3cd; color:#856404; }
.badge-Diagnosing { background:#cfe2ff; color:#084298; }
.badge-Waiting-Parts { background:#e2d9f3; color:#5a32a3; }
.badge-Repairing { background:#ffe5d0; color:#b3530a; }


/* ---------- Loader ---------- */
#pageLoader {
    position: fixed; inset: 0; background: var(--bg);
    display: flex; align-items: center; justify-content: center;
    z-index: 9999;
}
.spinner-ring {
    width: 48px; height: 48px; border: 4px solid var(--primary-light);
    border-top-color: var(--primary); border-radius: 50%;
    animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-accent, .btn-success { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover, .btn-success:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }

.stat-icon.accent { background: var(--accent); }
.badge-Completed { background: var(--accent-light); color: var(--accent-dark); }
.badge-Delivered { background: var(--accent-light); color: var(--accent-dark); }

a { text-decoration: none; }

.login-wrapper {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}
.login-card { background: #fff; border-radius: 16px; padding: 40px; width: 380px; max-width: 92vw; box-shadow: 0 15px 40px rgba(0,0,0,.25); }

@media print {
    .sidebar, .topbar, .no-print { display: none !important; }
    .main-content { margin-left: 0 !important; width: 100% !important; }
}