:root {
    --sidebar-bg: #ffffff;
    --sidebar-hover: #f5f1ec;
    --sidebar-active: #efe8e0;
    --sidebar-text: #6f6760;
    --sidebar-text-active: #2b2b2b;
    --sidebar-border: #ece6de;
    --accent: #9a8776;
    --accent-hover: #877564;
    --accent-light: rgba(154, 135, 118, 0.14);
    --accent-soft: #d4c4b4;
    --body-bg: #f9f7f4;
    --card-bg: #ffffff;
    --text-primary: #2b2b2b;
    --text-secondary: #6f6760;
    --text-muted: #9a928a;
    --border-color: #ece6de;
    --shadow-sm: 0 1px 3px rgba(43, 43, 43, 0.04);
    --shadow-md: 0 6px 16px rgba(43, 43, 43, 0.06);
    --shadow-lg: 0 14px 30px rgba(43, 43, 43, 0.08);
    --sidebar-width: 260px;
    --topbar-height: 64px;
    --radius: 12px;
    --radius-sm: 8px;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --bs-primary: #9a8776;
    --bs-primary-rgb: 154, 135, 118;
    --bs-link-color: #9a8776;
    --bs-link-hover-color: #877564;
    --bs-focus-ring-color: rgba(154, 135, 118, 0.25);
}

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: var(--body-bg);
    color: var(--text-primary);
    margin: 0;
    font-size: 0.9375rem;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Layout */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--sidebar-border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-brand-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #e8ddd2 0%, var(--accent) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(154, 135, 118, 0.2);
}

.sidebar-brand-text {
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
}

.sidebar-brand-text span {
    color: var(--accent);
}

.sidebar-nav {
    padding: 1rem 0.75rem;
    flex: 1;
}

.nav-section-label {
    color: var(--text-muted);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.75rem 0.75rem 0.375rem;
}

.nav-item {
    margin-bottom: 2px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.15s ease;
}

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

.nav-link.active {
    background: var(--accent-light);
    color: var(--accent-hover);
    font-weight: 600;
}

.nav-link svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    opacity: 0.7;
}

.nav-link.active svg {
    opacity: 1;
}

.nav-submenu {
    padding-left: 2.25rem;
}

.nav-submenu .nav-link {
    font-size: 0.8125rem;
    padding: 0.5rem 0.75rem;
}

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

.admin-topbar {
    height: var(--topbar-height);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.store-switcher .dropdown-toggle {
    background: var(--body-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.store-switcher .dropdown-toggle::after {
    margin-left: 0.25rem;
}

.store-switcher .dropdown-menu {
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius);
    padding: 0.375rem;
    min-width: 220px;
}

.store-switcher .dropdown-item {
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
}

.store-switcher .dropdown-item.active {
    background: var(--accent-light);
    color: var(--accent);
    font-weight: 600;
}

.lang-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
}

.user-menu .dropdown-toggle {
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.375rem 0.5rem;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.875rem;
}

.user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.8125rem;
}

.admin-content {
    padding: 1.5rem;
    flex: 1;
}

.page-header {
    margin-bottom: 1.5rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 0.25rem;
}

.page-subtitle {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.875rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    background: transparent;
    font-weight: 600;
    font-size: 0.9375rem;
}

.card-body {
    padding: 1.25rem;
}

/* KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.kpi-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.kpi-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.kpi-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.375rem;
}

.kpi-value {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.kpi-value.accent {
    color: var(--accent);
}

.kpi-value.success {
    color: #059669;
}

.kpi-value.warning {
    color: #d97706;
}

.kpi-value.danger {
    color: #dc2626;
}

.kpi-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.kpi-icon.purple { background: var(--accent-light); color: var(--accent); }
.kpi-icon.green { background: rgba(5, 150, 105, 0.12); color: #059669; }
.kpi-icon.orange { background: rgba(217, 119, 6, 0.12); color: #d97706; }
.kpi-icon.red { background: rgba(220, 38, 38, 0.12); color: #dc2626; }
.kpi-icon.blue { background: rgba(37, 99, 235, 0.12); color: #2563eb; }

/* Charts */
.chart-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.chart-container {
    position: relative;
    height: 280px;
}

/* Tables */
.table {
    margin-bottom: 0;
    font-size: 0.875rem;
}

.table thead th {
    background: var(--body-bg);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
}

.table tbody td {
    padding: 0.75rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
}

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

.badge-status {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.625rem;
    border-radius: 999px;
    background: var(--accent-light);
    color: var(--accent-hover);
}

.badge-status.success {
    background: rgba(5, 150, 105, 0.12);
    color: #059669;
}

.badge-status.muted {
    background: #f3f0ec;
    color: var(--text-secondary);
}

.search-form {
    display: flex;
    gap: 0.5rem;
    min-width: 280px;
}

.search-form .form-control {
    min-width: 200px;
}

.page-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.table-actions {
    display: inline-flex;
    gap: 0.375rem;
    justify-content: flex-end;
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color);
}

.alert-success {
    background: rgba(5, 150, 105, 0.1);
    border: 1px solid rgba(5, 150, 105, 0.25);
    color: #047857;
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
}

.settings-list dt {
    color: var(--text-secondary);
    font-weight: 500;
}

.badge-paid { background: rgba(5, 150, 105, 0.12); color: #059669; }
.badge-partial { background: rgba(217, 119, 6, 0.12); color: #d97706; }
.badge-unpaid { background: rgba(220, 38, 38, 0.12); color: #dc2626; }

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.empty-state {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Login Page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(circle at 15% 20%, rgba(212, 196, 180, 0.35), transparent 36%),
        radial-gradient(circle at 85% 80%, rgba(232, 221, 210, 0.45), transparent 34%),
        linear-gradient(180deg, #fdfbf8 0%, #f5efe8 100%);
    padding: 2rem;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.login-header {
    padding: 2.5rem 2rem 1.5rem;
    text-align: center;
}

.login-logo {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #e8ddd2 0%, var(--accent) 100%);
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 8px 20px rgba(154, 135, 118, 0.22);
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 0.375rem;
    letter-spacing: -0.02em;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

.login-body {
    padding: 0 2rem 2rem;
}

.form-label {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-primary);
    margin-bottom: 0.375rem;
}

.form-control {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.625rem 0.875rem;
    font-size: 0.9375rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    font-weight: 600;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-sm);
    transition: background 0.15s ease, border-color 0.15s ease;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-login {
    width: 100%;
    padding: 0.75rem;
    font-size: 0.9375rem;
}

.alert-danger {
    background: rgba(220, 38, 38, 0.08);
    border: 1px solid rgba(220, 38, 38, 0.2);
    color: #dc2626;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
}

.btn-outline-primary {
    color: var(--accent);
    border-color: rgba(154, 135, 118, 0.45);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus,
.btn-outline-primary:active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.nav-tabs {
    border-bottom-color: var(--border-color);
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    padding: 0.65rem 1rem;
    font-weight: 500;
}

.nav-tabs .nav-link:hover {
    color: var(--text-primary);
    border-bottom-color: rgba(154, 135, 118, 0.35);
}

.nav-tabs .nav-link.active {
    color: var(--accent-hover);
    background: transparent;
    border-bottom-color: var(--accent);
}

.table-primary {
    --bs-table-bg: rgba(154, 135, 118, 0.08);
    --bs-table-color: var(--text-primary);
}

.text-primary {
    color: var(--accent) !important;
}

.bg-primary {
    background-color: var(--accent) !important;
}

.border-primary {
    border-color: var(--accent) !important;
}

.form-check-input:checked {
    background-color: var(--accent);
    border-color: var(--accent);
}

.form-select:focus,
.form-control:focus,
.form-check-input:focus {
    border-color: rgba(154, 135, 118, 0.55);
    box-shadow: 0 0 0 0.2rem rgba(154, 135, 118, 0.18);
}

.dropdown-item:active,
.dropdown-item.active {
    background: var(--accent-light);
    color: var(--accent-hover);
}

.page-link {
    color: var(--accent);
}

.page-link:hover {
    color: var(--accent-hover);
}

.active > .page-link,
.page-link.active {
    background-color: var(--accent);
    border-color: var(--accent);
}

@media (max-width: 992px) {
    .chart-grid,
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .admin-sidebar {
        transform: translateX(-100%);
        box-shadow: var(--shadow-lg);
    }

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

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

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

.card-footer .pagination {
    margin-bottom: 0;
}

.card-footer nav[role="navigation"] {
    width: 100%;
}