/**
 * ================================================================
 * STOKPRO - DEPO ENVANTER VE STOK YÖNETİM SİSTEMİ
 * Ana Stil Dosyası - Modern SaaS Dashboard Teması
 * ================================================================
 */

/* ================================================================
   CSS DEĞİŞKENLERİ - LIGHT THEME (VARSAYILAN)
   ================================================================ */
:root {
    /* Temel Renkler */
    --bg: #f8fafc;
    --bg-dark: #f1f5f9;
    --bg-light: #ffffff;
    --card: #ffffff;
    --card-hover: #f8fafc;
    
    /* Metin Renkleri */
    --text: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-light: #cbd5e1;
    
    /* Accent / Marka Renkleri */
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-light: #eef2ff;
    --accent-dark: #4338ca;
    
    /* Durum Renkleri */
    --success: #22c55e;
    --success-light: #dcfce7;
    --success-dark: #16a34a;
    
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --warning-dark: #d97706;
    
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --danger-dark: #dc2626;
    
    --info: #06b6d4;
    --info-light: #cffafe;
    --info-dark: #0891b2;
    
    /* Border & Shadow */
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --border-dark: #cbd5e1;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Geçiş & Animasyon */
    --transition: 0.2s ease;
    --transition-slow: 0.3s ease;
    
    /* Boyutlar */
    --sidebar-width: 280px;
    --sidebar-collapsed: 80px;
    --topbar-height: 64px;
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    
    /* Font */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
}

/* ================================================================
   DARK THEME
   ================================================================ */
[data-theme="dark"] {
    --bg: #0f172a;
    --bg-dark: #020617;
    --bg-light: #1e293b;
    --card: #1e293b;
    --card-hover: #334155;
    
    --text: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --text-light: #475569;
    
    --accent: #818cf8;
    --accent-hover: #6366f1;
    --accent-light: rgba(99, 102, 241, 0.2);
    --accent-dark: #a5b4fc;
    
    --success-light: rgba(34, 197, 94, 0.2);
    --warning-light: rgba(245, 158, 11, 0.2);
    --danger-light: rgba(239, 68, 68, 0.2);
    --info-light: rgba(6, 182, 212, 0.2);
    
    --border: #334155;
    --border-light: #1e293b;
    --border-dark: #475569;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.4), 0 1px 2px -1px rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

/* ================================================================
   RESET & BASE
   ================================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--accent-hover);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ================================================================
   LAYOUT - ADMIN PANEL
   ================================================================ */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition);
}

.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-collapsed);
}

.content-area {
    flex: 1;
    padding: var(--space-lg);
    padding-top: calc(var(--topbar-height) + var(--space-lg));
}

/* ================================================================
   SIDEBAR
   ================================================================ */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition), transform var(--transition);
}

.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed);
}

.sidebar-header {
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    border-bottom: 1px solid var(--border);
    min-height: var(--topbar-height);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.sidebar-logo svg,
.sidebar-logo img {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.sidebar-logo span {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
}

.sidebar-collapsed .sidebar-logo span {
    display: none;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-md);
    overflow-y: auto;
}

.nav-section {
    margin-bottom: var(--space-lg);
}

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-xs);
}

.sidebar-collapsed .nav-section-title {
    display: none;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius);
    color: var(--text-secondary);
    transition: all var(--transition);
    margin-bottom: var(--space-xs);
    cursor: pointer;
}

.nav-item:hover {
    background: var(--bg-dark);
    color: var(--text);
}

.nav-item.active {
    background: var(--accent-light);
    color: var(--accent);
    font-weight: 500;
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    stroke-width: 1.5;
}

.nav-item span {
    white-space: nowrap;
}

.sidebar-collapsed .nav-item span {
    display: none;
}

.sidebar-collapsed .nav-item {
    justify-content: center;
    padding: var(--space-sm);
}

.nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    min-width: 20px;
    text-align: center;
}

.sidebar-collapsed .nav-badge {
    display: none;
}

.sidebar-footer {
    padding: var(--space-md);
    border-top: 1px solid var(--border);
}

/* ================================================================
   TOPBAR
   ================================================================ */
.topbar {
    position: fixed;
    top: 0;
    right: 0;
    left: var(--sidebar-width);
    height: var(--topbar-height);
    background: var(--card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-lg);
    z-index: 99;
    transition: left var(--transition);
}

.sidebar-collapsed .topbar {
    left: var(--sidebar-collapsed);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.topbar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
}

.topbar-toggle:hover {
    background: var(--bg-dark);
    color: var(--text);
}

.topbar-search {
    position: relative;
    width: 320px;
}

.topbar-search input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    padding-left: 40px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    transition: all var(--transition);
}

.topbar-search input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.topbar-search input::placeholder {
    color: var(--text-muted);
}

.topbar-search svg {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.topbar-icon {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
}

.topbar-icon:hover {
    background: var(--bg-dark);
    color: var(--text);
}

.topbar-icon svg {
    width: 20px;
    height: 20px;
}

.topbar-icon .badge-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid var(--card);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius);
    cursor: pointer;
    transition: background var(--transition);
}

.user-menu:hover {
    background: var(--bg-dark);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.875rem;
}

.user-info {
    text-align: left;
}

.user-name {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text);
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ================================================================
   PAGE HEADER
   ================================================================ */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.page-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

.page-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

/* ================================================================
   CARDS
   ================================================================ */
.card {
    background: var(--card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
}

.card-body {
    padding: var(--space-lg);
}

.card-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border);
    background: var(--bg);
}

/* Stat Cards */
.stat-card {
    padding: var(--space-lg);
}

.stat-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 24px;
    height: 24px;
}

.stat-icon.primary {
    background: var(--accent-light);
    color: var(--accent);
}

.stat-icon.success {
    background: var(--success-light);
    color: var(--success);
}

.stat-icon.warning {
    background: var(--warning-light);
    color: var(--warning);
}

.stat-icon.danger {
    background: var(--danger-light);
    color: var(--danger);
}

.stat-icon.info {
    background: var(--info-light);
    color: var(--info);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

.stat-change {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    margin-top: var(--space-sm);
}

.stat-change.up {
    background: var(--success-light);
    color: var(--success);
}

.stat-change.down {
    background: var(--danger-light);
    color: var(--danger);
}

/* ================================================================
   GRID SYSTEM
   ================================================================ */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1200px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ================================================================
   BUTTONS
   ================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
    color: white;
}

.btn-secondary {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-dark);
    border-color: var(--border-dark);
    color: var(--text);
}

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

.btn-success:hover:not(:disabled) {
    background: var(--success-dark);
    color: white;
}

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

.btn-warning:hover:not(:disabled) {
    background: var(--warning-dark);
    color: white;
}

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

.btn-danger:hover:not(:disabled) {
    background: var(--danger-dark);
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-dark);
    color: var(--text);
}

.btn-link {
    background: transparent;
    color: var(--accent);
    padding: 0;
}

.btn-link:hover:not(:disabled) {
    color: var(--accent-hover);
    text-decoration: underline;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 1rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

/* ================================================================
   FORMS
   ================================================================ */
.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: var(--space-xs);
}

.form-label .required {
    color: var(--danger);
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

.input,
.select,
.textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.9375rem;
    color: var(--text);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.input:focus,
.select:focus,
.textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
    background: var(--card);
}

.input::placeholder {
    color: var(--text-muted);
}

.input.error,
.select.error,
.textarea.error {
    border-color: var(--danger);
}

.input.error:focus,
.select.error:focus,
.textarea.error:focus {
    box-shadow: 0 0 0 3px var(--danger-light);
}

.form-error {
    font-size: 0.75rem;
    color: var(--danger);
    margin-top: var(--space-xs);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

.textarea {
    min-height: 100px;
    resize: vertical;
}

.input-group {
    display: flex;
    align-items: stretch;
}

.input-group .input {
    border-radius: var(--radius) 0 0 var(--radius);
}

.input-group .btn {
    border-radius: 0 var(--radius) var(--radius) 0;
}

.input-icon {
    position: relative;
}

.input-icon .input {
    padding-left: 40px;
}

.input-icon svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
}

.input-icon-right .input {
    padding-right: 40px;
    padding-left: var(--space-md);
}

.input-icon-right svg,
.input-icon-right button {
    position: absolute;
    right: 12px;
    left: auto;
    top: 50%;
    transform: translateY(-50%);
}

.input-icon-right button {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    color: var(--text-muted);
}

/* Checkbox & Radio */
.checkbox-wrapper,
.radio-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.checkbox,
.radio {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

/* Switch Toggle */
.switch {
    position: relative;
    width: 44px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--border);
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.switch-slider::before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}

.switch input:checked + .switch-slider {
    background: var(--accent);
}

.switch input:checked + .switch-slider::before {
    transform: translateX(20px);
}

/* ================================================================
   TABLES
   ================================================================ */
.table-wrapper {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table th,
.table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg);
    white-space: nowrap;
}

.table tbody tr {
    transition: background var(--transition);
}

.table tbody tr:hover {
    background: var(--card-hover);
}

.table .actions {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

/* ================================================================
   BADGES
   ================================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-primary {
    background: var(--accent-light);
    color: var(--accent);
}

.badge-success {
    background: var(--success-light);
    color: var(--success);
}

.badge-warning {
    background: var(--warning-light);
    color: var(--warning);
}

.badge-danger {
    background: var(--danger-light);
    color: var(--danger);
}

.badge-info {
    background: var(--info-light);
    color: var(--info);
}

.badge-secondary {
    background: var(--bg-dark);
    color: var(--text-secondary);
}

/* ================================================================
   PILLS / CHIPS
   ================================================================ */
.chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 6px 12px;
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    background: var(--bg);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all var(--transition);
}

.chip:hover {
    background: var(--bg-dark);
    border-color: var(--border-dark);
}

.chip.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

/* ================================================================
   DROPDOWN
   ================================================================ */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 180px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: var(--space-xs);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition);
}

.dropdown.open .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    color: var(--text);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition);
}

.dropdown-item:hover {
    background: var(--bg);
}

.dropdown-item svg {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
}

.dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: var(--space-xs) 0;
}

/* ================================================================
   MODAL
   ================================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--space-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.modal-overlay.open {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--card);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.95);
    transition: transform var(--transition);
}

.modal-overlay.open .modal {
    transform: scale(1);
}

.modal-lg {
    max-width: 700px;
}

.modal-xl {
    max-width: 900px;
}

.modal-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-muted);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
}

.modal-close:hover {
    background: var(--bg);
    color: var(--text);
}

.modal-body {
    padding: var(--space-lg);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-sm);
}

/* ================================================================
   TOAST / NOTIFICATIONS
   ================================================================ */
.toast-container {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 320px;
    max-width: 420px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text);
    margin-bottom: 2px;
}

.toast-message {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.toast-close {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    flex-shrink: 0;
}

.toast.success { border-left: 3px solid var(--success); }
.toast.success .toast-icon { color: var(--success); }

.toast.error { border-left: 3px solid var(--danger); }
.toast.error .toast-icon { color: var(--danger); }

.toast.warning { border-left: 3px solid var(--warning); }
.toast.warning .toast-icon { color: var(--warning); }

.toast.info { border-left: 3px solid var(--info); }
.toast.info .toast-icon { color: var(--info); }

/* ================================================================
   ALERT
   ================================================================ */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius);
    margin-bottom: var(--space-md);
}

.alert svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.alert-success {
    background: var(--success-light);
    color: var(--success-dark);
    border: 1px solid var(--success);
}

.alert-danger {
    background: var(--danger-light);
    color: var(--danger-dark);
    border: 1px solid var(--danger);
}

.alert-warning {
    background: var(--warning-light);
    color: var(--warning-dark);
    border: 1px solid var(--warning);
}

.alert-info {
    background: var(--info-light);
    color: var(--info-dark);
    border: 1px solid var(--info);
}

/* ================================================================
   EMPTY STATE
   ================================================================ */
.empty-state {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
}

.empty-state svg {
    width: 80px;
    height: 80px;
    color: var(--text-light);
    margin-bottom: var(--space-md);
}

.empty-state-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--space-xs);
}

.empty-state-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

/* ================================================================
   SKELETON LOADER
   ================================================================ */
.skeleton {
    background: linear-gradient(90deg, var(--bg) 25%, var(--bg-dark) 50%, var(--bg) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-text {
    height: 16px;
    margin-bottom: var(--space-sm);
}

.skeleton-text:last-child {
    width: 60%;
}

.skeleton-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.skeleton-card {
    height: 120px;
}

/* ================================================================
   PAGINATION
   ================================================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-md) 0;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.pagination-buttons {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.pagination-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 var(--space-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--bg-dark);
    border-color: var(--border-dark);
}

.pagination-btn.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ================================================================
   TABS
   ================================================================ */
.tabs {
    display: flex;
    gap: var(--space-xs);
    border-bottom: 1px solid var(--border);
    margin-bottom: var(--space-lg);
}

.tab {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    margin-bottom: -1px;
}

.tab:hover {
    color: var(--text);
}

.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* ================================================================
   SEARCH & FILTER BAR
   ================================================================ */
.filter-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.filter-search {
    flex: 1;
    min-width: 200px;
    max-width: 400px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

/* ================================================================
   LOGIN PAGE
   ================================================================ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg) 0%, var(--bg-dark) 100%);
    padding: var(--space-lg);
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: var(--card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-2xl);
}

.login-logo {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.login-logo svg,
.login-logo img {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md);
}

.login-logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.login-logo p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

/* ================================================================
   CHARTS
   ================================================================ */
.chart-container {
    position: relative;
    height: 300px;
}

/* ================================================================
   UTILITIES
   ================================================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-primary { color: var(--accent); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }

.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }
.font-normal { font-weight: 400; }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }

.p-0 { padding: 0; }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }

.d-flex { display: flex; }
.d-block { display: block; }
.d-none { display: none; }
.d-grid { display: grid; }

.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }

.w-full { width: 100%; }
.h-full { height: 100%; }

.rounded { border-radius: var(--radius); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.shadow { box-shadow: var(--shadow); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.cursor-pointer { cursor: pointer; }
.overflow-hidden { overflow: hidden; }
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .topbar {
        left: 0;
    }
    
    .mobile-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 99;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
    }
    
    .sidebar.open + .mobile-overlay {
        opacity: 1;
        visibility: visible;
    }
}

@media (max-width: 768px) {
    .content-area {
        padding: var(--space-md);
        padding-top: calc(var(--topbar-height) + var(--space-md));
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .topbar-search {
        display: none;
    }
    
    .user-info {
        display: none;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .table-mobile {
        display: block;
    }
    
    .table-mobile thead {
        display: none;
    }
    
    .table-mobile tbody tr {
        display: block;
        background: var(--card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: var(--space-md);
        margin-bottom: var(--space-sm);
    }
    
    .table-mobile tbody td {
        display: flex;
        justify-content: space-between;
        padding: var(--space-xs) 0;
        border: none;
    }
    
    .table-mobile tbody td::before {
        content: attr(data-label);
        font-weight: 500;
        color: var(--text-muted);
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 16px;
        --space-xl: 24px;
    }
    
    .card-body {
        padding: var(--space-md);
    }
    
    .filter-bar {
        flex-direction: column;
    }
    
    .filter-search {
        max-width: none;
    }
}

/* ================================================================
   PRINT STYLES
   ================================================================ */
@media print {
    .sidebar,
    .topbar,
    .page-actions,
    .btn,
    .pagination {
        display: none !important;
    }
    
    .main-content {
        margin: 0;
    }
    
    .content-area {
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}