:root {
    --bg: #f5f7fa;
    --panel: #ffffff;
    --sidebar: #111827;
    --sidebar-soft: #1f2937;
    --text: #111827;
    --muted: #6b7280;
    --border: #e5e7eb;
    --primary: #16a34a;
    --primary-dark: #15803d;
    --warning: #f59e0b;
    --danger: #dc2626;
    --info: #2563eb;
    --radius: 16px;
    --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select {
    font: inherit;
}

.app-shell {
    min-height: 100vh;
    display: flex;
}

.sidebar {
    width: 280px;
    background: var(--sidebar);
    color: #ffffff;
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 30;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 22px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: var(--primary);
    color: white;
    display: grid;
    place-items: center;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.sidebar-brand strong {
    display: block;
    font-size: 16px;
}

.sidebar-brand span {
    display: block;
    color: #9ca3af;
    font-size: 12px;
    margin-top: 2px;
}

.sidebar-nav {
    padding: 14px;
    flex: 1;
    overflow-y: auto;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 12px 14px;
    border-radius: 12px;
    color: #d1d5db;
    margin-bottom: 4px;
    transition: 0.16s ease;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: var(--sidebar-soft);
    color: #ffffff;
}

.sidebar-nav a.active {
    box-shadow: inset 3px 0 0 var(--primary);
}

.nav-icon {
    width: 22px;
    text-align: center;
}

.nav-section-label {
    color: #6b7280;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 20px 14px 8px;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.sync-pill {
    background: rgba(22, 163, 74, 0.12);
    color: #bbf7d0;
    border: 1px solid rgba(22, 163, 74, 0.35);
    border-radius: 999px;
    padding: 9px 12px;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sync-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
}

.main-area {
    margin-left: 280px;
    width: calc(100% - 280px);
    min-height: 100vh;
}

.topbar {
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: 20px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.topbar h1 {
    margin: 0;
    font-size: 24px;
    letter-spacing: -0.03em;
}

.topbar p {
    margin: 5px 0 0;
    color: var(--muted);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mobile-menu-btn {
    display: none;
    border: 1px solid var(--border);
    background: #ffffff;
    border-radius: 12px;
    padding: 9px 12px;
    cursor: pointer;
}

.content-area {
    padding: 28px;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 22px;
}

.kpi-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow);
}

.kpi-card span {
    display: block;
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 10px;
}

.kpi-card strong {
    display: block;
    font-size: 28px;
    letter-spacing: -0.04em;
}

.kpi-card small {
    display: block;
    color: var(--muted);
    margin-top: 8px;
}

.kpi-card.warning {
    border-color: rgba(245, 158, 11, 0.35);
}

.kpi-card.danger {
    border-color: rgba(220, 38, 38, 0.35);
}

.kpi-card.info {
    border-color: rgba(37, 99, 235, 0.35);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 22px;
    margin-bottom: 22px;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 22px;
}

.panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.panel-header h2 {
    margin: 0;
    font-size: 18px;
    letter-spacing: -0.02em;
}

.panel-header p {
    margin: 5px 0 0;
    color: var(--muted);
}

.text-link {
    color: var(--primary-dark);
    font-weight: 700;
    white-space: nowrap;
}

.table-wrap {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 820px;
}

th {
    text-align: left;
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: #f9fafb;
}

th,
td {
    padding: 13px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

tbody tr:hover {
    background: #f9fafb;
}

.badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 5px 10px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.badge.success {
    background: #dcfce7;
    color: #166534;
}

.badge.warning {
    background: #fef3c7;
    color: #92400e;
}

.badge.danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge.info {
    background: #dbeafe;
    color: #1e40af;
}

.badge.muted {
    background: #f3f4f6;
    color: #374151;
}

.role-badge {
    background: #ecfdf5;
    color: #166534;
    border: 1px solid #bbf7d0;
    padding: 8px 12px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 12px;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.small-btn {
    border: 0;
    cursor: pointer;
    border-radius: 12px;
    font-weight: 700;
    transition: 0.16s ease;
}

.primary-btn {
    background: var(--primary);
    color: #ffffff;
    padding: 11px 16px;
}

.primary-btn:hover {
    background: var(--primary-dark);
}

.secondary-btn {
    background: #f3f4f6;
    color: var(--text);
    padding: 11px 16px;
}

.ghost-btn {
    background: #ffffff;
    color: var(--text);
    border: 1px solid var(--border);
    padding: 9px 12px;
}

.small-btn {
    background: #f3f4f6;
    color: var(--text);
    padding: 7px 10px;
    font-size: 12px;
}

.small-btn:hover,
.secondary-btn:hover,
.ghost-btn:hover {
    background: #e5e7eb;
}

.status-list {
    display: grid;
    gap: 12px;
}

.status-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
}

.status-row:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.status-row span {
    color: var(--muted);
}

.danger-text {
    color: var(--danger);
}

.activity-list {
    display: grid;
    gap: 16px;
}

.activity-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.activity-item strong {
    display: block;
}

.activity-item p {
    margin: 4px 0 0;
    color: var(--muted);
}

.activity-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    margin-top: 4px;
    background: var(--muted);
}

.activity-dot.success {
    background: var(--primary);
}

.activity-dot.warning {
    background: var(--warning);
}

.activity-dot.info {
    background: var(--info);
}

.page-actions {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-row input,
.filter-row select {
    height: 42px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #ffffff;
    padding: 0 12px;
    min-width: 190px;
    outline: none;
}

.filter-row input:focus,
.filter-row select:focus,
.scanner-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.12);
}

.product-thumb {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, #e5e7eb, #f9fafb);
    border: 1px solid var(--border);
}

.scanner-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}

.scanner-panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 34px;
    box-shadow: var(--shadow);
    text-align: center;
}

.scanner-icon {
    width: 72px;
    height: 72px;
    background: #ecfdf5;
    color: var(--primary-dark);
    border-radius: 22px;
    display: grid;
    place-items: center;
    margin: 0 auto 18px;
    font-size: 30px;
}

.scanner-panel h2 {
    margin: 0;
    font-size: 24px;
    letter-spacing: -0.03em;
}

.scanner-panel p {
    color: var(--muted);
    margin-bottom: 22px;
}

.scanner-input {
    width: 100%;
    height: 64px;
    border-radius: 16px;
    border: 2px solid var(--border);
    padding: 0 18px;
    font-size: 20px;
    text-align: center;
    outline: none;
}

.scanner-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 18px;
}

.action-tile-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.action-tile,
.setting-card {
    border: 1px solid var(--border);
    background: #f9fafb;
    border-radius: 16px;
    padding: 16px;
}

.action-tile strong,
.setting-card strong {
    display: block;
    margin-bottom: 6px;
}

.action-tile span,
.setting-card p {
    color: var(--muted);
    margin: 0;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.setting-card p {
    margin-bottom: 14px;
}

.sidebar-backdrop {
    display: none;
}

@media (max-width: 1200px) {
    .kpi-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .dashboard-grid,
    .scanner-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    .sidebar {
        transform: translateX(-100%);
        transition: 0.2s ease;
    }

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

    .sidebar-backdrop.show {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.45);
        z-index: 20;
    }

    .main-area {
        width: 100%;
        margin-left: 0;
    }

    .mobile-menu-btn {
        display: inline-flex;
    }

    .topbar {
        align-items: flex-start;
        justify-content: flex-start;
    }

    .topbar-actions {
        margin-left: auto;
    }
}

@media (max-width: 680px) {
    .topbar {
        padding: 16px;
        flex-wrap: wrap;
    }

    .topbar h1 {
        font-size: 21px;
    }

    .topbar-actions {
        width: 100%;
        margin-left: 0;
        justify-content: space-between;
    }

    .content-area {
        padding: 16px;
    }

    .kpi-grid {
        grid-template-columns: 1fr;
    }

    .page-actions {
        flex-direction: column;
    }

    .filter-row,
    .filter-row input,
    .filter-row select,
    .page-actions .primary-btn {
        width: 100%;
    }

    .panel {
        padding: 16px;
    }

    .panel-header {
        flex-direction: column;
    }

    .scanner-panel {
        padding: 22px;
    }

    .scanner-input {
        height: 56px;
        font-size: 16px;
    }

    .scanner-actions {
        flex-direction: column;
    }

    .scanner-actions button {
        width: 100%;
    }

    .action-tile-grid,
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

.auth-body {
    background:
        radial-gradient(circle at top left, rgba(22, 163, 74, 0.18), transparent 34%),
        linear-gradient(135deg, #111827 0%, #1f2937 48%, #0f172a 100%);
    min-height: 100vh;
}

.auth-wrapper {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: #ffffff;
    border-radius: 24px;
    padding: 30px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
    border: 1px solid rgba(255,255,255,0.2);
}

.auth-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
}

.auth-brand strong {
    display: block;
    font-size: 17px;
}

.auth-brand span {
    display: block;
    color: var(--muted);
    font-size: 13px;
    margin-top: 2px;
}

.auth-heading h1 {
    margin: 0;
    font-size: 30px;
    letter-spacing: -0.04em;
}

.auth-heading p {
    margin: 8px 0 24px;
    color: var(--muted);
}

.auth-form {
    display: grid;
    gap: 16px;
}

.form-group {
    display: grid;
    gap: 7px;
}

.form-group label {
    font-weight: 700;
    font-size: 13px;
}

.form-group input {
    width: 100%;
    height: 46px;
    border: 1px solid var(--border);
    border-radius: 13px;
    padding: 0 13px;
    outline: none;
    background: #ffffff;
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.12);
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--muted);
    font-size: 13px;
}

.auth-submit {
    width: 100%;
    height: 48px;
    margin-top: 4px;
}

.alert {
    padding: 12px 14px;
    border-radius: 13px;
    font-weight: 700;
    font-size: 13px;
    margin-bottom: 18px;
}

.danger-alert {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.user-chip {
    display: grid;
    text-align: right;
}

.user-chip strong {
    font-size: 13px;
}

.user-chip span {
    color: var(--muted);
    font-size: 12px;
    margin-top: 2px;
}

@media (max-width: 680px) {
    .auth-card {
        padding: 24px;
        border-radius: 20px;
    }

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