:root {
    --bg: #f4f7fb;
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --text: #152033;
    --muted: #64748b;
    --line: #e2e8f0;
    --primary: #2563eb;
    --primary-soft: #dbeafe;
    --success: #16a34a;
    --success-soft: #dcfce7;
    --warning: #d97706;
    --warning-soft: #fef3c7;
    --danger: #dc2626;
    --danger-soft: #fee2e2;
    --shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
    --radius: 18px;
    --radius-sm: 12px;
    --sidebar-width: 260px;
}

* {
    box-sizing: border-box;
}

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

body {
    min-height: 100vh;
}

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

.layout,
.crm-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #0f172a 0%, #162033 100%);
    color: #fff;
    padding: 28px 18px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 0;
    min-height: 100vh;
}

.sidebar h2,
.sidebar__brand {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.2px;
}

.sidebar nav,
.sidebar__nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar nav a,
.sidebar__nav a {
    display: block;
    padding: 12px 14px;
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.84);
    transition: all 0.2s ease;
    font-size: 15px;
}

.sidebar nav a:hover,
.sidebar__nav a:hover,
.sidebar nav a.active,
.sidebar__nav a.active {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.sidebar-foot {
    margin-top: auto;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.6;
    font-size: 13px;
}

.main {
    flex: 1;
    padding: 24px;
}

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

.page-header h1 {
    margin: 0 0 6px;
    font-size: 28px;
}

.page-header p {
    margin: 0;
    color: var(--muted);
}

.filter,
.button-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.filter input,
.filter select,
input[type="text"],
input[type="date"],
input[type="file"],
select,
textarea {
    border: 1px solid var(--line);
    background: #fff;
    color: var(--text);
    border-radius: 12px;
    padding: 11px 13px;
    min-height: 42px;
    outline: none;
    width: 100%;
}

textarea {
    min-height: 110px;
    resize: vertical;
}

.filter input:focus,
.filter select:focus,
input[type="text"]:focus,
input[type="date"]:focus,
input[type="file"]:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.10);
}

.btn,
button {
    border: 0;
    border-radius: 12px;
    padding: 11px 16px;
    min-height: 42px;
    cursor: pointer;
    font-weight: 600;
    background: var(--primary);
    color: #fff;
    transition: transform 0.15s ease, opacity 0.2s ease, background 0.2s ease;
}

.btn:hover,
button:hover {
    opacity: 0.95;
    transform: translateY(-1px);
}

.btn.secondary,
.btn--secondary,
button.secondary {
    background: #e2e8f0;
    color: #0f172a;
}

.btn.light {
    background: #eef2ff;
    color: #1e3a8a;
}

.btn--primary {
    background: var(--primary);
    color: #fff;
}

.cards,
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.card,
.stat-card {
    background: var(--surface);
    border: 1px solid rgba(226, 232, 240, 0.85);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.card {
    padding: 18px;
}

.card.stat,
.stat-card {
    padding: 18px;
}

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

.card.stat strong,
.stat-card__value {
    display: block;
    font-size: 28px;
    line-height: 1.2;
}

.card-head,
.card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.card-head h3,
.card__header h2 {
    margin: 0;
    font-size: 18px;
}

.card__body {
    padding: 0;
}

.small {
    color: var(--muted);
    font-size: 13px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1.25fr 1fr;
    gap: 18px;
    margin-bottom: 20px;
}

.grid-3,
.form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--muted);
    font-weight: 600;
}

.stack-lg {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chart-wrap {
    position: relative;
    height: 340px;
}

.table-wrap {
    overflow: auto;
    border-radius: 14px;
}

table,
.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

th,
td {
    text-align: left;
    padding: 13px 12px;
    border-bottom: 1px solid var(--line);
    vertical-align: middle;
    font-size: 14px;
}

th {
    background: var(--surface-2);
    color: #334155;
    position: sticky;
    top: 0;
    z-index: 1;
}

tbody tr:hover {
    background: #fafcff;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    border: 1px solid transparent;
}

.badge.success {
    background: var(--success-soft);
    color: var(--success);
    border-color: rgba(22, 163, 74, 0.18);
}

.badge.warning {
    background: var(--warning-soft);
    color: var(--warning);
    border-color: rgba(217, 119, 6, 0.18);
}

.badge.danger {
    background: var(--danger-soft);
    color: var(--danger);
    border-color: rgba(220, 38, 38, 0.18);
}

.badge.default {
    background: #e2e8f0;
    color: #475569;
    border-color: #cbd5e1;
}

.alert {
    margin-bottom: 18px;
    padding: 14px 16px;
    border-radius: 14px;
    border: 1px solid;
    line-height: 1.6;
}

.alert.success,
.alert--success {
    background: var(--success-soft);
    color: #166534;
    border-color: #bbf7d0;
}

.alert.error,
.alert--danger {
    background: var(--danger-soft);
    color: #991b1b;
    border-color: #fecaca;
}

.alert--warning {
    background: var(--warning-soft);
    color: #92400e;
    border-color: #fde68a;
}

.link-chip,
.tag {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: #1d4ed8;
    font-size: 13px;
    font-weight: 600;
    margin-right: 8px;
    margin-bottom: 8px;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.mini-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mini-list__item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: var(--surface-2);
    border-radius: 12px;
    border: 1px solid var(--line);
}

.kv-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    color: #334155;
    line-height: 1.7;
}

.kpi-mini {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.muted {
    color: var(--muted);
    background: #fafafa;
}

.mt-16 {
    margin-top: 16px;
}

.crm-body {
    background: var(--bg);
}

@media (max-width: 1280px) {
    .cards,
    .stats-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

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

@media (max-width: 980px) {
    .layout,
    .crm-layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        min-height: auto;
        position: relative;
    }

    .main {
        padding: 16px;
    }

    .cards,
    .stats-grid,
    .grid-3,
    .form-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .cards,
    .stats-grid,
    .grid-3,
    .form-grid {
        grid-template-columns: 1fr;
    }

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

    .card.stat strong,
    .stat-card__value {
        font-size: 24px;
    }

    th,
    td {
        padding: 11px 10px;
        font-size: 13px;
    }
}