/* Premium CSS Stylesheet - Bulk Dynamic QR Code Generator & Manager */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --font-primary: 'Inter', sans-serif;
    --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Sleek Light Colors */
    --bg-app: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --primary-hsl: 221, 83%, 53%; /* Premium Indigo-blue */
    --primary-color: hsl(var(--primary-hsl));
    --sidebar-bg: #0f172a;
    --sidebar-text: #94a3b8;
    --sidebar-text-active: #ffffff;
}

[data-bs-theme="dark"] {
    /* Sleek Dark Mode colors */
    --bg-app: #090d16;
    --bg-card: #111827;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #1f2937;
    --primary-hsl: 217, 91%, 60%;
    --primary-color: hsl(var(--primary-hsl));
    --sidebar-bg: #0b0f19;
    --sidebar-text: #6b7280;
    --sidebar-text-active: #f3f4f6;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-app);
    color: var(--text-main);
    transition: var(--transition-smooth);
    min-height: 100vh;
}

/* Sidebar Custom Styling */
.sidebar {
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    min-height: 100vh;
    width: 260px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    border-right: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.sidebar .brand {
    padding: 1.5rem;
    font-weight: 800;
    font-size: 1.25rem;
    color: #ffffff;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar .nav-link {
    color: var(--sidebar-text);
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: var(--transition-smooth);
    border-left: 3px solid transparent;
}

.sidebar .nav-link:hover {
    color: var(--sidebar-text-active);
    background: rgba(255, 255, 255, 0.03);
}

.sidebar .nav-link.active {
    color: var(--sidebar-text-active);
    background: rgba(255, 255, 255, 0.05);
    border-left-color: var(--primary-color);
}

/* Main Layout Positioning */
.main-content {
    margin-left: 260px;
    padding: 2rem;
    min-height: 100vh;
    transition: var(--transition-smooth);
}

/* Glassmorphism Premium Cards */
.card-premium {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.02), 0 2px 4px -1px rgba(0, 0, 0, 0.01);
    transition: var(--transition-smooth);
}

.card-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
}

/* Micro-animations and buttons styling */
.btn-premium {
    border-radius: 0.5rem;
    padding: 0.5rem 1.25rem;
    font-weight: 600;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-premium:hover {
    transform: scale(1.02);
}

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

.btn-premium-primary:hover {
    background-color: hsl(var(--primary-hsl)-10%);
    border-color: hsl(var(--primary-hsl)-10%);
    color: #ffffff;
}

/* QR Code Grid and Layout Styles */
.qr-grid-card {
    border-radius: 1rem;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.qr-grid-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 20px -5px rgba(0, 0, 0, 0.08);
}

.qr-grid-card .qr-image-wrapper {
    background: #f1f5f9;
    padding: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

[data-bs-theme="dark"] .qr-grid-card .qr-image-wrapper {
    background: #1e293b;
}

.qr-grid-card img {
    max-width: 150px;
    height: auto;
    border-radius: 0.5rem;
    transition: var(--transition-smooth);
}

.qr-grid-card img:hover {
    transform: scale(1.05);
}

.qr-grid-card .qr-details {
    padding: 1.25rem;
}

/* Float Switcher widget */
.theme-switch-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1050;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    background-color: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    color: #ffffff;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.theme-switch-btn:hover {
    transform: rotate(30deg) scale(1.1);
}

/* Responsive sidebars */
@media (max-width: 991.98px) {
    .sidebar {
        margin-left: -260px;
    }
    .sidebar.active {
        margin-left: 0;
    }
    .main-content {
        margin-left: 0;
    }
}

/* Print layout optimizations */
@media print {
    body {
        background: #ffffff !important;
        color: #000000 !important;
    }
    .sidebar, .navbar, .theme-switch-btn, .no-print, .btn, form, .pagination {
        display: none !important;
    }
    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
    }
    .card-premium {
        border: none !important;
        box-shadow: none !important;
    }
}