/* ─── CSS Custom Properties ─────────────────────────────────────────────── */
:root {
    --sidebar-width: 220px;
    /* Light theme defaults */
    --bg-body:        #f0f4f8;
    --bg-card:        #ffffff;
    --bg-sidebar:     #1e2a3a;
    --bg-navbar:      #ffffff;
    --text-primary:   #0c7d74;
    --btn-primary:    #0c7d74;
    --text-secondary: #64748b;
    --border-color:   #e2e8f0;
    --stat-gradient:  linear-gradient(135deg, #ffffff, #f0f4f8);
    --stat-border:    #e2e8f0;
    --stat-value:     #1a56db;
    --input-bg:       #ffffff;
    --input-border:   #cbd5e1;
    --input-color:    #1a202c;
    --table-bg:       transparent;
    --heatmap-low:    #e0e7ff;
    --heatmap-high:   #1a56db;
    --scrollbar-bg:   #e2e8f0;
    --scrollbar-thumb:#94a3b8;
}

[data-bs-theme="dark"] {
    --bg-body:        #0f1117;
    --bg-card:        #1a1d27;
    --bg-sidebar:     #111827;
    --bg-navbar:      #1a1d27;
    --text-primary:   #e0e0e0;
    --text-secondary: #9b9bb0;
    --border-color:   #2d3142;
    --stat-gradient:  linear-gradient(135deg, #1a1d27, #2d3142);
    --stat-border:    #3d4163;
    --stat-value:     #4facfe;
    --input-bg:       #0f1117;
    --input-border:   #2d3142;
    --input-color:    #e0e0e0;
    --table-bg:       transparent;
    --heatmap-low:    #1a1d27;
    --heatmap-high:   #4facfe;
    --scrollbar-bg:   #1a1d27;
    --scrollbar-thumb:#2d3142;
}

/* ─── Base ───────────────────────────────────────────────────────────────── */
body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    transition: background-color 0.2s, color 0.2s;
}

.bg-primary {
  background-color: #0c7d74 !important;
}

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

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background-color: #0a6a62 !important;
    border-color: #0a6a62 !important;
    color: #ffffff !important;
}

.text-info {
    color: #0c7d74 !important;
}

/* ─── Sidebar ────────────────────────────────────────────────────────────── */
#sidebar {
    background-color: var(--bg-sidebar) !important;
    transition: all 0.3s;
}

#sidebar.collapsed {
    min-width: 0 !important;
    width: 0;
    overflow: hidden;
    padding: 0 !important;
}

/* Sidebar links are always light-on-dark (sidebar stays dark in both modes) */
#sidebar .nav-link {
    color: rgba(255,255,255,0.65) !important;
}
#sidebar .nav-link:hover,
#sidebar .nav-link.active {
    background-color: rgba(79,172,254,0.18);
    color: #7dd3fc !important;
    border-radius: 6px;
}
#sidebar .brand-text { color: #ffffff; }

/* ─── Navbar ─────────────────────────────────────────────────────────────── */
#topNavbar {
    background-color: var(--bg-navbar) !important;
    border-bottom-color: var(--border-color) !important;
}

/* ─── Cards ──────────────────────────────────────────────────────────────── */
.card {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.card-header {
    border-bottom-color: var(--border-color) !important;
    background-color: transparent;
}

/* ─── Stat cards ─────────────────────────────────────────────────────────── */
.stat-card {
    background: var(--stat-gradient);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--stat-border);
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--stat-value);
}

.stat-card .stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ─── Tables ─────────────────────────────────────────────────────────────── */
.table {
    --bs-table-bg: var(--table-bg);
    color: var(--text-primary);
}

.table-hover > tbody > tr:hover {
    --bs-table-hover-bg: rgba(99,102,241,0.07);
}

/* ─── Forms ──────────────────────────────────────────────────────────────── */
[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--input-color);
}

[data-bs-theme="dark"] .input-group-text {
    background-color: #1a1d27;
    border-color: var(--input-border);
    color: var(--text-secondary);
}

[data-bs-theme="dark"] .modal-content {
    background-color: #1a1d27;
    border-color: var(--border-color);
}

/* ─── Status badges ──────────────────────────────────────────────────────── */
.badge-status-active   { background-color: #16a34a; }
.badge-status-archived { background-color: #6c757d; }
.badge-status-expired  { background-color: #dc2626; }

/* ─── QR preview ──────────────────────────────────────────────────────────── */
.qr-preview {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    object-fit: contain;
    background: white;
    padding: 4px;
}

/* ─── Chart container ─────────────────────────────────────────────────────── */
.chart-container {
    position: relative;
    height: 300px;
}

/* ─── Leaflet map ─────────────────────────────────────────────────────────── */
#map {
    height: 350px;
    border-radius: 12px;
}

/* ─── Heatmap ─────────────────────────────────────────────────────────────── */
.heatmap-cell {
    width: 14px;
    height: 14px;
    border-radius: 2px;
    display: inline-block;
    background-color: var(--heatmap-low);
}

/* ─── Theme toggle button ─────────────────────────────────────────────────── */
#themeToggle {
    border-radius: 50%;
    width: 36px;
    height: 36px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: transform 0.2s;
}
#themeToggle:hover { transform: rotate(20deg); }

/* ─── Nav active/hover (light mode) ──────────────────────────────────────── */
.nav-link.active {
    background-color: rgba(79, 172, 254, 0.15);
    border-radius: 6px;
}
.nav-link:hover {
    background-color: rgba(0,0,0,0.05);
    border-radius: 6px;
}
[data-bs-theme="dark"] .nav-link:hover {
    background-color: rgba(255,255,255,0.05);
}

/* ─── Pagination ─────────────────────────────────────────────────────────── */
[data-bs-theme="dark"] .page-link {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}

/* ─── Login page ─────────────────────────────────────────────────────────── */
.login-bg {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-color: #0f1928;
    background-image:
        radial-gradient(ellipse at 20% 30%, rgba(26,86,219,0.35) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(79,172,254,0.25) 0%, transparent 50%),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    overflow: hidden;
}

.login-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400' viewBox='0 0 800 800'%3E%3Cg fill='none' stroke='%231a56db' stroke-opacity='0.08' stroke-width='1'%3E%3Ccircle cx='400' cy='400' r='200'/%3E%3Ccircle cx='400' cy='400' r='300'/%3E%3Ccircle cx='400' cy='400' r='400'/%3E%3C/g%3E%3C/svg%3E") center/cover;
    opacity: 0.4;
    pointer-events: none;
}

.login-card {
    position: relative;
    z-index: 1;
    background: rgba(255,255,255,0.92);
    color: #000 !important;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(26,86,219,0.16);
    border-radius: 16px;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 45px rgba(15,23,42,0.12);
    
}

/* ─── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar-bg); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }