:root {
    --bg: #f4f7fb;
    --panel: #ffffff;
    --line: #d8e1ec;
    --ink: #162338;
    --muted: #607087;
    --brand: #1f6feb;
    --brand-soft: #e6f0ff;
    --danger: #c93541;
    --success: #138a4c;
    --shadow: 0 14px 32px rgba(15, 35, 63, 0.1);
    --radius: 14px;
    --radius-sm: 10px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: radial-gradient(circle at top right, #eef5ff 0%, #f7faff 35%, #f2f5fa 100%);
    color: var(--ink);
    font-family: "Manrope", "Noto Sans SC", "Segoe UI", sans-serif;
}

.lang-switch {
    position: fixed;
    top: 10px;
    right: 12px;
    z-index: 2100;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 6px 16px rgba(17, 32, 64, 0.08);
    font-size: 12px;
}

.lang-item {
    padding: 4px 8px;
    border-radius: 999px;
    border: 1px solid #d5dfec;
    color: #34445e;
}

.lang-item.is-active {
    border-color: #93b4ee;
    background: #e9f1ff;
    color: #1d3f7a;
}

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

.toast {
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 2000;
    padding: 12px 16px;
    border-radius: 12px;
    color: #fff;
    box-shadow: var(--shadow);
}

.toast--success {
    background: #179f5f;
}

.toast--error {
    background: #c93541;
}

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

.auth-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(150deg, #dfeaff 0%, #ecf6ff 40%, #f7fbff 100%);
}

.auth-card {
    position: relative;
    width: min(460px, 95vw);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 30px;
    box-shadow: var(--shadow);
}

.auth-card h1 {
    margin: 0 0 8px;
    font-size: 30px;
}

.auth-card p {
    margin: 0 0 22px;
    color: var(--muted);
}

.auth-card small {
    display: block;
    margin-top: 12px;
    color: var(--muted);
}

.app-shell {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
}

.sidebar {
    padding: 24px;
    border-right: 1px solid var(--line);
    background: linear-gradient(180deg, #f6f9ff 0%, #f4f8fd 100%);
    position: sticky;
    top: 0;
    height: 100vh;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.brand strong {
    display: block;
}

.brand small {
    color: var(--muted);
}

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 13px;
    background: var(--brand);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 700;
}

.brand-logo {
    width: 42px;
    height: 42px;
    border-radius: 13px;
    object-fit: cover;
}

.nav-list {
    display: grid;
    gap: 8px;
}

.nav-item {
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid transparent;
    color: #27354a;
}

.nav-item:hover {
    background: #ecf3ff;
}

.nav-item.is-active {
    background: var(--brand-soft);
    border-color: #b8cff8;
    font-weight: 600;
}

.main-panel {
    display: grid;
    grid-template-rows: auto 1fr;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(247, 250, 255, 0.95);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--line);
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.topbar-left,
.topbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar h1 {
    font-size: 20px;
    margin: 0;
}

.user-chip {
    padding: 8px 12px;
    border-radius: 999px;
    background: #e9eef7;
    font-size: 13px;
}

.content {
    padding: 20px;
    display: grid;
    gap: 16px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: 0 10px 22px rgba(17, 32, 64, 0.04);
}

.card h2,
.card h3 {
    margin: 0 0 10px;
}

.metric {
    margin: 0;
    font-size: 32px;
    font-weight: 700;
}

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

.card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.plugin-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.plugin-tile {
    display: grid;
    gap: 8px;
    border: 1px solid var(--line);
    background: #fafcff;
    border-radius: 12px;
    padding: 12px;
}

.plugin-tile p,
.plugin-tile span {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.empty {
    padding: 24px;
    text-align: center;
    border: 1px dashed #bed0e8;
    border-radius: 12px;
    color: var(--muted);
}

.btn,
button,
input,
textarea,
select {
    font: inherit;
}

.btn {
    border: 0;
    border-radius: 10px;
    background: var(--brand);
    color: #fff;
    padding: 9px 14px;
    cursor: pointer;
    white-space: nowrap;
}

.btn.secondary {
    background: #3b4c66;
}

.btn.ghost {
    background: #edf2fa;
    color: #27354a;
}

.btn.danger {
    background: var(--danger);
}

.form-grid {
    display: grid;
    gap: 10px;
}

.form-grid label,
.panel-block label {
    display: grid;
    gap: 6px;
}

input,
textarea,
select {
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 9px 10px;
    background: #fff;
    min-width: 0;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.inline-form {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.inline-form input,
.inline-form select {
    width: auto;
}

.field-title {
    display: block;
    margin-bottom: 6px;
    color: var(--muted);
}

.inline-checks {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.check-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.modal {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 1000;
}

.modal.is-open {
    display: block;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(9, 21, 39, 0.45);
}

.modal-dialog {
    position: relative;
    width: min(1100px, 94vw);
    max-height: 90vh;
    margin: 3vh auto;
    background: #fff;
    border-radius: 18px;
    overflow: auto;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.modal-head {
    position: sticky;
    top: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
    background: #fff;
}

.tabs {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--line);
}

.tab {
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 7px 12px;
    background: #f6f9ff;
    cursor: pointer;
}

.tab.is-active {
    border-color: #9dbcf3;
    background: var(--brand-soft);
}

.tab-panel {
    display: none;
    padding: 16px;
    gap: 12px;
}

.tab-panel.is-active {
    display: grid;
}

.panel-block {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 14px;
    display: grid;
    gap: 12px;
}

.panel-block h3 {
    margin: 0;
}

.user-list {
    display: grid;
    gap: 10px;
}

.user-card {
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 10px;
    display: grid;
    gap: 8px;
}

.user-head {
    display: flex;
    justify-content: space-between;
}

.plugin-admin-list {
    display: grid;
    gap: 10px;
}

.plugin-admin-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 12px;
}

.plugin-admin-item p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.plugin-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.table-wrap {
    overflow: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 700px;
}

th,
td {
    border-bottom: 1px solid var(--line);
    padding: 10px 8px;
    text-align: left;
    vertical-align: top;
}

.status {
    padding: 3px 8px;
    border-radius: 999px;
    color: #fff;
    font-size: 12px;
}

.status.todo {
    background: #8e9aaf;
}

.status.done {
    background: var(--success);
}

.sidebar-overlay {
    display: none;
}

.mobile-only {
    display: none;
}

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

@media (max-width: 860px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        left: -300px;
        top: 0;
        width: 280px;
        transition: left 0.25s ease;
        z-index: 1200;
    }

    .sidebar.is-open {
        left: 0;
    }

    .sidebar-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.35);
        z-index: 1100;
    }

    .sidebar-overlay.is-open {
        display: block;
    }

    .mobile-only {
        display: inline-flex;
    }

    .topbar {
        flex-wrap: wrap;
    }

    .topbar-right {
        width: 100%;
        justify-content: flex-end;
    }

    .content {
        padding: 14px;
    }

    .lang-switch {
        top: 8px;
        right: 8px;
        font-size: 11px;
    }

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

    .plugin-admin-item {
        flex-direction: column;
        align-items: flex-start;
    }
}