:root {
    --ink: #1e293b;
    --muted: #64748b;
    --line: #d7dde7;
    --panel: #ffffff;
    --bg: #f4f7f9;
    --nav: #17324d;
    --accent: #0f766e;
    --accent-dark: #115e59;
    --danger: #b91c1c;
}

* {
    box-sizing: border-box;
}

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

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

a:hover {
    text-decoration: underline;
}

.topbar {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
    padding: 0 20px;
    background: #ffffff;
    border-bottom: 1px solid var(--line);
}

.brand {
    color: var(--ink);
    font-size: 16px;
    font-weight: 700;
}

.userbar {
    display: flex;
    gap: 16px;
    align-items: center;
    color: var(--muted);
}

.language-switch {
    display: inline-flex;
    gap: 4px;
    align-items: center;
    padding: 3px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #f8fafc;
}

.language-switch a {
    min-width: 38px;
    padding: 5px 8px;
    border-radius: 4px;
    color: var(--muted);
    text-align: center;
}

.language-switch a.active {
    background: var(--accent);
    color: #ffffff;
}

.language-switch a:hover {
    text-decoration: none;
}

.sidebar {
    position: fixed;
    top: 56px;
    bottom: 0;
    left: 0;
    width: 260px;
    overflow-y: auto;
    background: var(--nav);
}

.sidebar nav {
    display: grid;
    padding: 12px;
}

.sidebar a {
    padding: 11px 12px;
    color: #dbeafe;
    border-radius: 6px;
}

.sidebar a:hover {
    background: rgba(255, 255, 255, 0.09);
    text-decoration: none;
}

.content {
    margin: 56px 0 0 260px;
    padding: 24px;
}

.login-content {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 80px 20px 24px;
}

.login-card,
.panel,
.metric {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.login-card {
    width: min(430px, 100%);
    padding: 28px;
}

.login-card h1,
.page-title h1 {
    margin: 0 0 8px;
    font-size: 24px;
}

.login-card p,
.page-title p {
    margin: 0;
    color: var(--muted);
}

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

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}

.metric {
    padding: 18px;
}

.metric span {
    display: block;
    color: var(--muted);
}

.metric strong {
    display: block;
    margin-top: 8px;
    font-size: 30px;
}

.panel {
    padding: 18px;
}

.panel h2 {
    margin: 0 0 14px;
    font-size: 18px;
}

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

.workflow-grid a,
.button,
button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #ffffff;
    color: var(--ink);
    cursor: pointer;
    font: inherit;
}

.workflow-grid a:hover,
.button:hover,
button:hover {
    border-color: var(--accent);
    text-decoration: none;
}

.primary {
    border-color: var(--accent);
    background: var(--accent);
    color: #ffffff;
}

.primary:hover {
    background: var(--accent-dark);
    color: #ffffff;
}

.toolbar {
    display: flex;
    gap: 10px;
    margin-bottom: 14px;
}

input,
select,
textarea {
    width: 100%;
    min-height: 38px;
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #ffffff;
    color: var(--ink);
    font: inherit;
}

textarea {
    resize: vertical;
}

label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-weight: 600;
}

.login-card form {
    display: grid;
    gap: 14px;
    margin-top: 22px;
}

.alert {
    margin-top: 16px;
    padding: 10px 12px;
    border: 1px solid #fecaca;
    border-radius: 6px;
    background: #fef2f2;
    color: var(--danger);
}

.table-panel {
    overflow-x: auto;
    padding: 0;
}

.pagination-bar {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: center;
    margin-top: 14px;
    padding: 12px 14px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.pagination-summary {
    color: var(--muted);
}

.pagination-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.page-link,
.page-current {
    min-height: 34px;
    padding: 7px 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #ffffff;
}

.page-current {
    color: var(--muted);
}

.page-link.disabled {
    color: #94a3b8;
    background: #f8fafc;
}

table {
    width: 100%;
    border-collapse: collapse;
}

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

th {
    background: #f8fafc;
    color: #475569;
    font-size: 12px;
    text-transform: uppercase;
}

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

.span-2 {
    grid-column: span 2;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

@media (max-width: 980px) {
    .sidebar {
        position: static;
        width: auto;
        margin-top: 56px;
    }

    .content {
        margin: 0;
    }

    .metric-grid,
    .workflow-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .pagination-bar {
        align-items: stretch;
        flex-direction: column;
    }

    .span-2 {
        grid-column: span 1;
    }
}