/* =======================================
   BuilderOffice - Design System
   건설현장 관리 웹앱
   ======================================= */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;600;700;900&display=swap');

/* === CSS Custom Properties === */
:root {
    /* Colors - Dark Theme */
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.7);
    --bg-card-hover: rgba(25, 35, 55, 0.85);
    --bg-sidebar: rgba(10, 14, 26, 0.95);
    --bg-input: rgba(30, 41, 59, 0.8);
    --bg-modal-overlay: rgba(0, 0, 0, 0.6);

    /* Accent Colors */
    --accent-primary: #06b6d4;
    --accent-primary-light: #22d3ee;
    --accent-primary-dark: #0891b2;
    --accent-secondary: #8b5cf6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    --accent-info: #3b82f6;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #06b6d4, #8b5cf6);
    --gradient-success: linear-gradient(135deg, #10b981, #06b6d4);
    --gradient-warning: linear-gradient(135deg, #f59e0b, #ef4444);
    --gradient-card: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(139, 92, 246, 0.05));

    /* Text */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-accent: #22d3ee;

    /* Borders */
    --border-color: rgba(148, 163, 184, 0.1);
    --border-color-hover: rgba(6, 182, 212, 0.3);

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(6, 182, 212, 0.15);

    /* Layout */
    --sidebar-width: 260px;
    --header-height: 70px;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background Effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(16, 185, 129, 0.04) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* === Layout === */
.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* === Sidebar === */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.sidebar-logo .logo-icon {
    width: 42px;
    height: 42px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: white;
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
}

.sidebar-logo .logo-text {
    display: flex;
    flex-direction: column;
}

.sidebar-logo .logo-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.sidebar-logo .logo-subtitle {
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 12px 12px 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: 2px;
    position: relative;
    overflow: hidden;
}

.nav-item:hover {
    background: rgba(6, 182, 212, 0.08);
    color: var(--text-primary);
}

.nav-item.active {
    background: rgba(6, 182, 212, 0.12);
    color: var(--accent-primary-light);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--gradient-primary);
    border-radius: 0 4px 4px 0;
}

.nav-item .nav-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
}

.sidebar-footer .current-date {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
}

/* === Main Content === */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

/* Header */
.main-header {
    height: var(--header-height);
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    background: rgba(10, 14, 26, 0.5);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
}

.page-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.page-title span {
    color: var(--accent-primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-search {
    position: relative;
}

.header-search input {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 8px 16px 8px 38px;
    color: var(--text-primary);
    font-size: 13px;
    width: 220px;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.header-search input:focus {
    outline: none;
    border-color: var(--accent-primary);
    width: 280px;
    box-shadow: var(--shadow-glow);
}

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

.header-search .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 14px;
}

/* Page Content */
.page-content {
    padding: 28px 32px;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Cards === */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-glow);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Stat Cards */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--gradient-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    opacity: 0.05;
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-glow);
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.stat-card .stat-icon.blue {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-primary-light);
}

.stat-card .stat-icon.green {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-success);
}

.stat-card .stat-icon.purple {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-secondary);
}

.stat-card .stat-icon.orange {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-warning);
}

.stat-card .stat-icon.red {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-danger);
}

.stat-card .stat-info {
    flex: 1;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.stat-card .stat-value {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -1px;
    line-height: 1.2;
}

.stat-card .stat-change {
    font-size: 12px;
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-card .stat-change.up {
    color: var(--accent-success);
}

.stat-card .stat-change.down {
    color: var(--accent-danger);
}

/* === Tables === */
.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius);
}

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

thead th {
    padding: 14px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(15, 23, 42, 0.5);
    white-space: nowrap;
}

tbody td {
    padding: 14px 16px;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

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

tbody tr:hover {
    background: rgba(6, 182, 212, 0.04);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 4px 16px rgba(6, 182, 212, 0.4);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    border-color: var(--border-color-hover);
    color: var(--text-primary);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.25);
}

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

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    justify-content: center;
    border-radius: var(--border-radius-sm);
}

/* === Forms === */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* === Modal === */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-modal-overlay);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 620px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 22px;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
    transition: color var(--transition-fast);
}

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

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* === Badge === */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-blue {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-primary-light);
}

.badge-green {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-success);
}

.badge-purple {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-secondary);
}

.badge-orange {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-warning);
}

.badge-red {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-danger);
}

/* === Toolbar / Filters === */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-select {
    padding: 8px 32px 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.filter-input {
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.filter-input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* === Charts (CSS-based) === */
.chart-bar-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chart-bar-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chart-bar-label {
    font-size: 13px;
    color: var(--text-secondary);
    min-width: 80px;
    text-align: right;
}

.chart-bar-track {
    flex: 1;
    height: 28px;
    background: rgba(30, 41, 59, 0.6);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.chart-bar-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    padding-left: 10px;
    font-size: 12px;
    font-weight: 600;
    color: white;
    min-width: fit-content;
}

.chart-bar-fill.cyan {
    background: linear-gradient(90deg, var(--accent-primary-dark), var(--accent-primary-light));
}

.chart-bar-fill.purple {
    background: linear-gradient(90deg, #7c3aed, #a78bfa);
}

.chart-bar-fill.green {
    background: linear-gradient(90deg, #059669, #34d399);
}

.chart-bar-fill.orange {
    background: linear-gradient(90deg, #d97706, #fbbf24);
}

.chart-bar-fill.red {
    background: linear-gradient(90deg, #dc2626, #f87171);
}

.chart-bar-fill.blue {
    background: linear-gradient(90deg, #2563eb, #60a5fa);
}

.chart-bar-value {
    font-size: 13px;
    color: var(--text-secondary);
    min-width: 50px;
}

/* === Activity List === */
.activity-list {
    display: flex;
    flex-direction: column;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-color);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}

.activity-icon.cost {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-primary-light);
}

.activity-icon.personnel {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-success);
}

.activity-icon.material {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-secondary);
}

.activity-info {
    flex: 1;
}

.activity-title {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.activity-time {
    font-size: 12px;
    color: var(--text-muted);
}

/* === Grid Layouts === */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
}

/* === Empty State === */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 15px;
    margin-bottom: 20px;
}

/* === Action Buttons in Tables === */
.action-btns {
    display: flex;
    gap: 6px;
}

.action-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all var(--transition-fast);
}

.action-btn.edit {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-info);
}

.action-btn.edit:hover {
    background: rgba(59, 130, 246, 0.2);
}

.action-btn.delete {
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-danger);
}

.action-btn.delete:hover {
    background: rgba(239, 68, 68, 0.2);
}

/* === Amount Formatting === */
.amount {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.amount.positive {
    color: var(--accent-success);
}

.amount.negative {
    color: var(--accent-danger);
}

/* === Toast Notification === */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s ease;
    min-width: 280px;
}

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

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

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

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* === Responsive === */
@media (max-width: 1024px) {

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .mobile-menu-btn {
        display: block;
    }

    .main-header {
        padding: 0 16px;
    }

    .page-content {
        padding: 20px 16px;
    }

    .header-search input {
        width: 160px;
    }

    .header-search input:focus {
        width: 200px;
    }

    .stat-cards {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .page-title {
        font-size: 18px;
    }
}

/* Mobile overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
}

.sidebar-overlay.active {
    display: block;
}

/* === Scrollbar === */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.2);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(148, 163, 184, 0.4);
}

/* === Summary Row === */
.summary-row {
    display: flex;
    justify-content: flex-end;
    padding: 14px 16px;
    border-top: 2px solid var(--border-color);
    font-weight: 600;
    font-size: 15px;
}

.summary-row span {
    color: var(--text-muted);
    margin-right: 8px;
}

/* === Inventory cards === */
.inventory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.inventory-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    transition: all var(--transition-normal);
}

.inventory-card:hover {
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-glow);
}

.inventory-card .inv-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.inventory-card .inv-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.inventory-card .inv-detail {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.inventory-card .inv-stock {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-top: 12px;
}

.inventory-card .inv-stock-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-primary-light);
}

.inventory-card .inv-stock-unit {
    font-size: 14px;
    color: var(--text-muted);
}

/* Stock level indicator */
.stock-level {
    height: 4px;
    background: rgba(30, 41, 59, 0.6);
    border-radius: 2px;
    margin-top: 12px;
    overflow: hidden;
}

.stock-level-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.6s ease;
}

.stock-level-fill.high {
    background: var(--accent-success);
}

.stock-level-fill.medium {
    background: var(--accent-warning);
}

.stock-level-fill.low {
    background: var(--accent-danger);
}

/* === Tab Navigation === */
.tab-nav {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0;
}

.tab-btn {
    padding: 10px 18px;
    border: none;
    background: none;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all var(--transition-fast);
}

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

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}