:root {
    --admin-bg: #f3f5f8;
    --admin-panel: #ffffff;
    --admin-panel-soft: #f8fafc;
    --admin-border: #d8e0ea;
    --admin-border-strong: #c4cfdd;
    --admin-text: #172033;
    --admin-muted: #647084;
    --admin-primary: #1765d8;
    --admin-primary-dark: #124ea7;
    --admin-danger: #b42318;
    --admin-success: #067647;
    --admin-warning: #8a5b00;
    --admin-sidebar: #0f172a;
    --admin-sidebar-active: #1d2a44;
    --admin-focus: rgba(23, 101, 216, 0.22);
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
}

body {
    margin: 0;
    background: var(--admin-bg);
    color: var(--admin-text);
    font: 15px/1.5 Arial, Helvetica, sans-serif;
}

a {
    color: var(--admin-primary);
    text-decoration: none;
}

a:hover {
    color: var(--admin-primary-dark);
    text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--admin-focus);
    outline-offset: 2px;
}

.skip-link {
    background: var(--admin-primary);
    border-radius: 0 0 6px 0;
    color: #fff;
    left: 0;
    padding: 10px 14px;
    position: fixed;
    top: -48px;
    z-index: 20;
}

.skip-link:focus {
    top: 0;
}

.admin-shell {
    display: grid;
    grid-template-columns: 236px minmax(0, 1fr);
    min-height: 100vh;
    min-height: 100dvh;
}

.admin-sidebar {
    background: var(--admin-sidebar);
    color: #fff;
    padding: 18px 14px;
}

.admin-brand,
.login-brand-row {
    align-items: center;
    display: flex;
    gap: 10px;
}

.admin-brand {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.2;
    margin: 0 8px 22px;
}

.admin-brand-mark {
    align-items: center;
    background: #ffffff;
    border-radius: 8px;
    color: var(--admin-sidebar);
    display: inline-flex;
    flex: 0 0 auto;
    font-size: 15px;
    font-weight: 700;
    height: 34px;
    justify-content: center;
    width: 34px;
}

.admin-nav {
    display: grid;
    gap: 6px;
}

.admin-nav a {
    border-radius: 7px;
    color: #d6dce8;
    display: block;
    min-height: 44px;
    padding: 10px 12px;
}

.admin-nav a:hover,
.admin-nav a.is-active {
    background: var(--admin-sidebar-active);
    color: #fff;
    text-decoration: none;
}

.admin-nav a.is-active {
    box-shadow: inset 3px 0 0 #64a1ff;
}

.admin-main {
    min-width: 0;
    padding: 24px;
}

.admin-topbar {
    align-items: center;
    display: flex;
    gap: 16px;
    justify-content: space-between;
    margin-bottom: 20px;
}

.admin-topbar h1 {
    font-size: 24px;
    line-height: 1.2;
    margin: 0;
}

.admin-user {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

.admin-user-name {
    color: var(--admin-muted);
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.panel {
    background: var(--admin-panel);
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
    padding: 18px;
}

.panel h2 {
    font-size: 17px;
    line-height: 1.3;
    margin: 0 0 14px;
}

.panel-header {
    align-items: center;
    display: flex;
    gap: 12px;
    justify-content: space-between;
    margin-bottom: 14px;
}

.panel-header h2 {
    margin: 0;
}

.panel-meta {
    color: var(--admin-muted);
    font-size: 13px;
}

.admin-section {
    margin-top: 14px;
}

.stats-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-bottom: 18px;
}

.stat {
    background: var(--admin-panel);
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
    min-height: 108px;
    padding: 16px;
}

.stat-label {
    color: var(--admin-muted);
    font-size: 13px;
}

.stat-value {
    font-size: 30px;
    font-weight: 700;
    line-height: 1.1;
    margin-top: 8px;
}

.table-wrap {
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    overflow-x: auto;
    width: 100%;
}

.table {
    border-collapse: collapse;
    min-width: 720px;
    width: 100%;
}

.table th,
.table td {
    border-bottom: 1px solid var(--admin-border);
    padding: 11px 12px;
    text-align: left;
    vertical-align: top;
}

.table th {
    background: var(--admin-panel-soft);
    color: var(--admin-muted);
    font-size: 12px;
    font-weight: 700;
    position: sticky;
    text-transform: uppercase;
    top: 0;
    z-index: 1;
}

.table tbody tr:hover {
    background: #f9fbff;
}

.table tr:last-child td {
    border-bottom: 0;
}

.empty-cell {
    color: var(--admin-muted);
    padding: 18px 12px;
    text-align: center;
}

.empty-state {
    align-items: center;
    color: var(--admin-muted);
    display: inline-flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.badge {
    border-radius: 999px;
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.2;
    padding: 4px 9px;
    background: #eef2f6;
    color: #344054;
    white-space: nowrap;
}

.badge-active,
.badge-resolved {
    background: #dcfae6;
    color: var(--admin-success);
}

.badge-pending,
.badge-new,
.badge-in-progress {
    background: #fff4cc;
    color: var(--admin-warning);
}

.badge-sent {
    background: #dbeafe;
    color: #1d4ed8;
}

.badge-unsub,
.badge-closed {
    background: #fee4e2;
    color: var(--admin-danger);
}

.filter-row,
.pagination {
    align-items: end;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 14px;
}

.pagination {
    color: var(--admin-muted);
    justify-content: flex-end;
    margin: 16px 0 0;
}

.filter-field {
    color: var(--admin-muted);
    flex: 1 1 260px;
    font-size: 12px;
    gap: 5px;
}

.filter-field-status {
    flex: 0 1 190px;
}

.filter-field input[type="search"] {
    min-width: min(320px, 100%);
    width: 100%;
}

.filter-field select {
    width: 100%;
}

.filter-submit {
    flex: 0 0 auto;
}

.filter-actions {
    align-items: center;
    display: flex;
    flex: 0 0 auto;
    gap: 8px;
}

label {
    color: var(--admin-text);
    display: grid;
    font-weight: 700;
    gap: 6px;
}

input,
select,
textarea {
    background: #fff;
    border: 1px solid var(--admin-border-strong);
    border-radius: 7px;
    color: var(--admin-text);
    font: inherit;
    font-weight: 400;
    min-height: 44px;
    padding: 9px 10px;
}

input:hover,
select:hover,
textarea:hover {
    border-color: #a9b8cc;
}

button,
.button {
    align-items: center;
    background: var(--admin-primary);
    border: 0;
    border-radius: 7px;
    color: #fff;
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    font-weight: 700;
    justify-content: center;
    min-height: 44px;
    padding: 9px 13px;
    touch-action: manipulation;
}

button:hover,
.button:hover {
    background: var(--admin-primary-dark);
    color: #fff;
    text-decoration: none;
}

button:active,
.button:active {
    transform: translateY(1px);
}

button:disabled,
.button[aria-disabled="true"] {
    cursor: not-allowed;
    opacity: 0.55;
}

.button-secondary {
    background: #344054;
}

.button-secondary:hover {
    background: #202939;
}

.button-ghost {
    background: #eef2f6;
    color: #344054;
}

.button-ghost:hover {
    background: #e4eaf2;
    color: #172033;
}

.button-small {
    min-height: 38px;
    padding: 7px 10px;
}

.alert {
    border-radius: 7px;
    font-weight: 700;
    margin-bottom: 14px;
    padding: 11px 12px;
}

.alert-error {
    background: #fee4e2;
    color: var(--admin-danger);
}

.alert-success {
    background: #dcfae6;
    color: var(--admin-success);
}

.alert-warning {
    background: #fff4cc;
    color: var(--admin-warning);
}

.login-page {
    align-items: center;
    background:
        linear-gradient(135deg, rgba(23, 101, 216, 0.08), rgba(6, 118, 71, 0.06)),
        var(--admin-bg);
    display: flex;
    justify-content: center;
    min-height: 100vh;
    min-height: 100dvh;
    padding: 20px;
}

.login-panel {
    width: min(430px, 100%);
}

.login-brand-row {
    margin-bottom: 18px;
}

.login-panel h1 {
    font-size: 24px;
    line-height: 1.2;
    margin: 0;
}

.form-stack {
    display: grid;
    gap: 13px;
}

.form-stack button {
    margin-top: 2px;
}

.detail-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
}

.detail-grid p {
    margin: 0 0 8px;
    overflow-wrap: anywhere;
}

.prewrap {
    background: var(--admin-panel-soft);
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    min-height: 96px;
    overflow-wrap: anywhere;
    padding: 12px;
    white-space: pre-wrap;
}

@media (max-width: 1100px) {
    .stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 800px) {
    .admin-shell {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        padding: 14px;
    }

    .admin-brand {
        margin: 0 0 12px;
    }

    .admin-nav {
        display: flex;
        gap: 8px;
        overflow-x: auto;
        padding-bottom: 2px;
    }

    .admin-nav a {
        flex: 0 0 auto;
        min-height: 44px;
        white-space: nowrap;
    }

    .admin-nav a.is-active {
        box-shadow: inset 0 -3px 0 #64a1ff;
    }

    .admin-main {
        padding: 18px 14px;
    }

    .admin-topbar {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
    }

    .admin-user {
        justify-content: flex-start;
        width: 100%;
    }

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

@media (max-width: 560px) {
    body {
        font-size: 16px;
    }

    .admin-main {
        padding: 14px 10px;
    }

    .panel,
    .stat {
        padding: 14px;
    }

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

    .filter-row input,
    .filter-row select,
    .filter-row button,
    .filter-actions,
    .filter-actions .button {
        width: 100%;
    }

    .button-small {
        min-height: 44px;
    }

    .pagination {
        justify-content: flex-start;
    }

    .table {
        min-width: 640px;
    }

    .login-page {
        padding: 14px;
    }
}