/* ── Variables ───────────────────────────────────────────────────────────── */
:root {
    --sidebar-width: 248px;
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --primary-light: rgba(14,165,233,.12);
    --sidebar-bg: #0f172a;
    --sidebar-text: rgba(255,255,255,.65);
    --sidebar-border: rgba(255,255,255,.08);
    --body-bg: #f1f5f9;
    --card-bg: #fff;
    --border: #e2e8f0;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --radius: .75rem;
    --radius-sm: .5rem;
}

/* ── Reset / Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
body {
    background: var(--body-bg);
    font-family: 'Inter', system-ui, sans-serif;
    color: var(--text-main);
    margin: 0;
    font-size: .9375rem;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; }

/* ── Sidebar ──────────────────────────────────────────────────────────────── */
#sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background: var(--sidebar-bg);
    position: fixed;
    top: 0; left: 0;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,.1) transparent;
}
#sidebar .brand {
    padding: 1.125rem 1.25rem;
    border-bottom: 1px solid var(--sidebar-border);
    color: #fff;
    font-weight: 700;
    font-size: 1.15rem;
    display: flex;
    align-items: center;
    gap: .6rem;
    letter-spacing: -.01em;
    flex-shrink: 0;
}
#sidebar .brand span { color: var(--primary); }
#sidebar .brand i { font-size: 1.3rem; }

#sidebar .nav-section {
    padding: .875rem 1.25rem .3rem;
    font-size: .6rem;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: rgba(255,255,255,.3);
    font-weight: 600;
}
#sidebar .nav-link {
    color: var(--sidebar-text);
    padding: .5rem 1rem;
    border-radius: .4rem;
    margin: 1px .5rem;
    display: flex;
    align-items: center;
    gap: .625rem;
    font-size: .8375rem;
    font-weight: 500;
    transition: background .15s, color .15s;
    text-decoration: none;
    line-height: 1.4;
}
#sidebar .nav-link i { font-size: 1rem; flex-shrink: 0; width: 1.1rem; text-align: center; }
#sidebar .nav-link:hover { background: rgba(255,255,255,.07); color: #fff; }
#sidebar .nav-link.active { background: var(--primary-light); color: var(--primary); }

#sidebar .user-panel {
    padding: .875rem 1.25rem;
    border-top: 1px solid var(--sidebar-border);
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: .625rem;
    flex-shrink: 0;
}
#sidebar .user-avatar {
    width: 34px; height: 34px;
    border-radius: 50%;
    background: var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-size: .8rem; font-weight: 700; color: #fff;
    flex-shrink: 0;
}
#sidebar .user-name { font-size: .8rem; font-weight: 600; color: #fff; line-height: 1.3; }
#sidebar .user-role { font-size: .7rem; color: rgba(255,255,255,.4); text-transform: capitalize; }

/* ── Main layout ──────────────────────────────────────────────────────────── */
#main {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ── Top bar ──────────────────────────────────────────────────────────────── */
.topbar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: .75rem 1.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}
.topbar .fw-semibold { font-size: 1rem; color: var(--text-main); }

.page-content { padding: 1.75rem; flex: 1; }

/* ── Stat cards ───────────────────────────────────────────────────────────── */
.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    transition: box-shadow .15s, transform .15s;
    text-decoration: none;
    color: inherit;
    display: block;
}
.stat-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.08); transform: translateY(-1px); color: inherit; }
.stat-label {
    font-size: .7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .07em;
    font-weight: 600;
    margin-bottom: .25rem;
}
.stat-value { font-size: 2rem; font-weight: 800; color: var(--text-main); line-height: 1.1; }

/* ── Card section ─────────────────────────────────────────────────────────── */
.card-section {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.card-section .card-header {
    padding: .875rem 1.25rem;
    border-bottom: 1px solid var(--border);
    background: #f8fafc;
    font-weight: 600;
    font-size: .875rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: .4rem;
}

/* ── Badges ───────────────────────────────────────────────────────────────── */
.badge { font-weight: 600; letter-spacing: .01em; }

/* Priority */
.badge-p1 { background: #fee2e2 !important; color: #dc2626 !important; }
.badge-p2 { background: #ffedd5 !important; color: #c2410c !important; }
.badge-p3 { background: #fef9c3 !important; color: #a16207 !important; }
.badge-p4 { background: #dcfce7 !important; color: #16a34a !important; }

/* Status */
.badge-open               { background: #dbeafe !important; color: #1d4ed8 !important; }
.badge-in_progress        { background: #e0f2fe !important; color: #0369a1 !important; }
.badge-resolved           { background: #dcfce7 !important; color: #15803d !important; }
.badge-closed             { background: #f1f5f9 !important; color: #475569 !important; }
.badge-pending_confirmation { background: #fef9c3 !important; color: #92400e !important; }

/* Installation status */
.badge-pending            { background: #f1f5f9 !important; color: #475569 !important; border: 1px solid #cbd5e1; }
.badge-on_hold_customer   { background: #fef3c7 !important; color: #92400e !important; border: 1px solid #fde68a; }
.badge-on_hold_deployment { background: #ffedd5 !important; color: #9a3412 !important; border: 1px solid #fed7aa; }
.badge-completed          { background: #dcfce7 !important; color: #15803d !important; border: 1px solid #bbf7d0; }
.badge-configured         { background: #e0f2fe !important; color: #075985 !important; border: 1px solid #bae6fd; }

/* ── Table ────────────────────────────────────────────────────────────────── */
.table { margin-bottom: 0; }
.table th {
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom-width: 1px;
    white-space: nowrap;
}
.table td { font-size: .875rem; vertical-align: middle; }
.table-hoverable tbody tr { cursor: pointer; transition: background .1s; }
.table-hoverable tbody tr:hover { background: #f8fafc; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn-primary { background: var(--primary); border-color: var(--primary); font-weight: 500; }
.btn-primary:hover, .btn-primary:focus { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-outline-secondary { border-color: var(--border); color: var(--text-muted); }
.btn-outline-secondary:hover { background: #f8fafc; border-color: #cbd5e1; color: var(--text-main); }

/* ── Forms ────────────────────────────────────────────────────────────────── */
.form-control, .form-select {
    border-color: var(--border);
    font-size: .875rem;
    border-radius: .5rem;
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(14,165,233,.15);
}
.form-label { font-weight: 500; color: var(--text-main); margin-bottom: .35rem; }

/* ── Login ────────────────────────────────────────────────────────────────── */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #0c2a4a 60%, #0f172a 100%);
    padding: 1rem;
}
.login-card {
    background: #fff;
    border-radius: 1rem;
    padding: 2.5rem 2.25rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 24px 64px rgba(0,0,0,.35), 0 0 0 1px rgba(255,255,255,.05);
}
.login-card .brand-logo {
    width: 52px; height: 52px;
    border-radius: .75rem;
    background: linear-gradient(135deg, var(--primary) 0%, #6366f1 100%);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; color: #fff;
    margin: 0 auto 1rem;
}

/* ── Map ──────────────────────────────────────────────────────────────────── */
#map { height: 520px; border-radius: var(--radius); overflow: hidden; }

/* ── Alert – migration notice ─────────────────────────────────────────────── */
.migration-alert {
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-left: 4px solid #f59e0b;
    padding: .6rem 1rem;
    border-radius: .5rem;
    font-size: .8125rem;
    color: #78350f;
    margin-bottom: 1.25rem;
}

/* ── Tabs ─────────────────────────────────────────────────────────────────── */
.nav-tabs { border-bottom: 1px solid var(--border); gap: .25rem; }
.nav-tabs .nav-link {
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    padding: .6rem 1rem;
    font-size: .875rem;
    font-weight: 500;
    border-radius: 0;
    transition: color .15s;
}
.nav-tabs .nav-link:hover { color: var(--text-main); border-bottom-color: var(--border); background: transparent; }
.nav-tabs .nav-link.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; background: transparent; }

/* ── Modal ────────────────────────────────────────────────────────────────── */
.modal-content { border: none; border-radius: var(--radius); box-shadow: 0 20px 60px rgba(0,0,0,.2); }
.modal-header { border-bottom: 1px solid var(--border); padding: 1.125rem 1.5rem; }
.modal-body { padding: 1.5rem; }
.modal-footer { border-top: 1px solid var(--border); padding: .875rem 1.5rem; }
.modal-title { font-size: .9375rem; font-weight: 700; }

/* ── List group ───────────────────────────────────────────────────────────── */
.list-group-item-action { transition: background .12s; }
.list-group-item-action:hover { background: #f8fafc; }

/* ── Alert overrides ──────────────────────────────────────────────────────── */
.alert { border-radius: .5rem; font-size: .875rem; }

/* ── Scrollbar ────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ── Notification bell ────────────────────────────────────────────────────── */
.notif-wrap { position: relative; }

.notif-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: .4rem;
    padding: .35rem .5rem;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .15s, color .15s;
}
.notif-btn:hover { background: #f1f5f9; color: var(--text-main); }

.notif-badge {
    position: absolute;
    top: -5px; right: -5px;
    background: #ef4444;
    color: #fff;
    font-size: .6rem;
    font-weight: 700;
    min-width: 16px;
    height: 16px;
    border-radius: 99px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 3px;
    line-height: 1;
    border: 2px solid #fff;
}

.notif-panel {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 340px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 8px 32px rgba(0,0,0,.12);
    z-index: 2000;
    overflow: hidden;
}
.notif-panel.open { display: block; }

.notif-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--border);
    background: #f8fafc;
}

.notif-item {
    display: flex;
    gap: .625rem;
    padding: .75rem 1rem;
    border-bottom: 1px solid #f1f5f9;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    transition: background .12s;
}
.notif-item:hover { background: #f8fafc; }
.notif-item.unread { background: #eff6ff; }
.notif-item.unread:hover { background: #dbeafe; }
.notif-item-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--primary);
    flex-shrink: 0;
    margin-top: 5px;
}
.notif-item-dot.read { background: transparent; }
.notif-item-title { font-size: .8125rem; font-weight: 600; color: var(--text-main); line-height: 1.3; margin-bottom: .1rem; }
.notif-item-msg   { font-size: .75rem; color: var(--text-muted); line-height: 1.4;
                    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.notif-item-time  { font-size: .7rem; color: #94a3b8; margin-top: .15rem; white-space: nowrap; }

.notif-empty { padding: 2rem 1rem; text-align: center; color: var(--text-muted); font-size: .8375rem; }

/* ── Mobile hamburger button ──────────────────────────────────────────────── */
#sidebarToggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: .4rem;
    padding: .35rem .5rem;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
    font-size: 1.15rem;
}
#sidebarToggle:hover { background: #f1f5f9; color: var(--text-main); }

/* Backdrop overlay for mobile sidebar */
#sidebarBackdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 999;
    backdrop-filter: blur(2px);
}
#sidebarBackdrop.visible { display: block; }

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    #sidebar {
        transform: translateX(-100%);
        transition: transform .25s cubic-bezier(.4,0,.2,1);
        z-index: 1001;
        box-shadow: none;
    }
    #sidebar.open {
        transform: translateX(0);
        box-shadow: 4px 0 24px rgba(0,0,0,.25);
    }
    #main { margin-left: 0; }
    .page-content { padding: 1rem; }
    .topbar { padding: .6rem 1rem; gap: .5rem; }
    #sidebarToggle { display: flex; align-items: center; justify-content: center; }
    #sidebarClose   { display: block !important; }
}