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

:root {
    /* Base Dimensions & Transitions */
    --radius-xl: 32px;
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --navbar-height: 64px;
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 72px;
    --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Default / Dark Theme */
:root, [data-theme="dark"] {
    --bg-main: #090910;
    --bg-gradient: radial-gradient(circle at top right, #1e1b4b 0%, #090910 60%);
    --bg-overlay: rgba(15, 23, 42, 0.6);
    --bg-surface: rgba(22, 22, 31, 0.8);
    --bg-card: rgba(28, 28, 40, 0.5);
    --bg-input: rgba(0, 0, 0, 0.25);
    
    --accent-primary: #7c6fe0; 
    --accent-secondary: #6366f1;
    --accent-glow: rgba(124, 111, 224, 0.2);
    
    --text-primary: #e4e4f0;
    --text-secondary: #b4b4d0;
    --text-muted: #8888a0;
    --text-dim: #5c5c7a;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.6);
}

/* Light Theme */
[data-theme="light"] {
    --bg-main: #f4f7ff;
    --bg-gradient: radial-gradient(circle at top right, #eef2ff 0%, #f4f7ff 60%);
    --bg-overlay: rgba(255, 255, 255, 0.6);
    --bg-surface: rgba(255, 255, 255, 0.85);
    --bg-card: rgba(255, 255, 255, 0.7);
    --bg-input: #ffffff;
    
    --accent-primary: #6366f1;
    --accent-secondary: #4f46e5;
    --accent-glow: rgba(99, 102, 241, 0.15);
    
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-dim: #94a3b8;
    
    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(0, 0, 0, 0.15);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
}

:root {
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
    font-size: 13.5px;
    background: var(--bg-gradient);
}

/* Utility Classes */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-glass);
}

.text-center { text-align: center; }
.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

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

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: calc(var(--navbar-height) + 1.5rem) 2.5rem 0;
    transition: margin-left var(--transition), padding var(--transition);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: 100%;
}

/* Sidebar Overlay for Mobile */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    border: none;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-secondary);
    transform: translateY(-1px);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
}

/* Cards */
.card {
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: var(--bg-surface);
}

/* Tables */
.table-container {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    padding: 1rem;
    text-align: left;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dim);
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Media Queries */
@media (max-width: 1200px) {
    .main-content { padding: calc(var(--navbar-height) + 1.5rem) 1.5rem 0; }
}

@media (max-width: 1024px) {
    .main-content { margin-left: 0; }
}

@media (max-width: 768px) {
    .main-content { padding: calc(var(--navbar-height) + 1rem) 1rem 0; }
    
    .view-header {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 1rem;
    }
    
    .header-actions {
        width: 100%;
    }
    
    .header-actions .btn {
        width: 100%;
    }

    .inventory-controls {
        flex-direction: column;
        align-items: stretch !important;
        gap: 1rem;
    }
    
    .search-engine {
        max-width: none !important;
    }
}

/* Mobile Utilities */
@media (max-width: 768px) {
    .hide-mobile { display: none !important; }
}
@media (min-width: 769px) {
    .show-mobile { display: none !important; }
}

/* Personalized Select2 Branding */
.select2-container--default .select2-selection--single {
    background: var(--bg-input) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-md) !important;
    height: 42px !important;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: var(--text-primary) !important;
    padding-left: 12px !important;
    font-size: 0.9rem;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 40px !important;
    right: 8px !important;
}

.select2-container--default .select2-selection--single .select2-selection__arrow b {
    border-color: var(--text-muted) transparent transparent transparent !important;
}

.select2-container--default.select2-container--focus .select2-selection--single,
.select2-container--default.select2-container--open .select2-selection--single {
    border-color: var(--accent-primary) !important;
    background: var(--bg-surface) !important;
    box-shadow: 0 0 0 4px var(--accent-glow) !important;
}

/* Dropdown Branding */
.select2-dropdown {
    background: var(--bg-surface) !important;
    border: 1px solid var(--accent-primary) !important;
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-glass) !important;
    backdrop-filter: blur(16px);
    overflow: hidden;
    margin-top: 4px;
}

.select2-container--default .select2-search--dropdown .select2-search__field {
    background: var(--bg-input) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-sm) !important;
    color: var(--text-primary) !important;
    padding: 8px 12px !important;
}

.select2-results__option {
    padding: 10px 15px !important;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.select2-container--default .select2-results__option--highlighted[aria-selected] {
    background-color: var(--accent-primary) !important;
    color: white !important;
}

.select2-container--default .select2-results__option[aria-selected=true] {
    background-color: rgba(124, 111, 224, 0.15) !important;
    color: var(--accent-primary) !important;
}

/* Multi-select Branding */
.select2-container--default .select2-selection--multiple {
    background: var(--bg-input) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-md) !important;
    min-height: 42px !important;
}

.select2-container--default .select2-selection--multiple .select2-selection__choice {
    background-color: var(--accent-primary) !important;
    border: none !important;
    color: white !important;
    border-radius: var(--radius-sm) !important;
    padding: 2px 8px !important;
    margin-top: 7px !important;
}

.select2-container--default .select2-selection--multiple .select2-selection__choice__remove {
    color: rgba(255, 255, 255, 0.8) !important;
    margin-right: 5px !important;
}

.select2-container--default .select2-selection--multiple .select2-selection__choice__remove:hover {
    color: white !important;
    background: transparent !important;
}