:root {
    --bg: #f7f8fb;
    --card: #ffffff;
    --line: #dfe3eb;
    --text: #1d2433;
    --muted: #6b7384;
    --primary: #3056d3;
    --danger: #c0392b;
    --success: #1f8f4d;
    --warning: #b7791f;
    --shadow: 0 6px 16px rgba(17, 24, 39, 0.06);
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: var(--text); background: var(--bg); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.layout { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar { background: #101827; color: white; padding: 24px 18px; display: flex; flex-direction: column; gap: 22px; }
.brand { display: flex; flex-direction: column; gap: 4px; }
.brand a { color: white; font-size: 1.55rem; font-weight: 700; text-decoration: none; }
.nav { display: grid; gap: 8px; }
.nav a { color: #dfe7f8; padding: 10px 12px; border-radius: 10px; display: block; }
.nav a:hover { background: rgba(255,255,255,0.08); text-decoration: none; }
.sidebar-actions { display: grid; gap: 8px; }
.sidebar-footer { margin-top: auto; display: grid; gap: 8px; }
.content { padding: 28px; }
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.page-header h1 { margin: 0 0 6px; }
.page-header p { margin: 0; color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); padding: 18px; }
.grid { display: grid; gap: 18px; }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.metric { display: grid; gap: 4px; }
.metric .label { color: var(--muted); font-size: 0.92rem; }
.metric .value { font-size: 1.9rem; font-weight: 700; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 0.9rem; }
.badge { display: inline-flex; align-items: center; gap: 6px; border-radius: 999px; padding: 6px 10px; font-size: 0.84rem; background: #eef2ff; color: #3730a3; }
.badge.success { background: #e7f7ee; color: var(--success); }
.badge.warning { background: #fef3c7; color: var(--warning); }
.badge.danger { background: #fde8e8; color: var(--danger); }
.badge.gray { background: #eef1f6; color: #485264; }
.button, button, input[type=submit] { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid var(--line); background: white; color: var(--text); border-radius: 10px; padding: 10px 14px; font-size: 0.95rem; cursor: pointer; text-decoration: none; }
.button:hover, button:hover, input[type=submit]:hover { text-decoration: none; background: #f4f7fb; }
.button-primary { background: var(--primary); color: white; border-color: var(--primary); }
.button-primary:hover { background: #2647b4; }
.button-danger { background: white; color: var(--danger); border-color: #f2c0bb; }
.button-success { background: white; color: var(--success); border-color: #bfe2cc; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.inline-form { display: inline; }
.filters { display: flex; flex-wrap: wrap; gap: 12px; padding: 16px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; margin-bottom: 18px; }
.filters input, .filters select,
form input[type=text], form input[type=password], form input[type=email], form input[type=date], form input[type=number], form select, form textarea, form input[type=file] { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: white; font: inherit; }
label { display: block; margin-bottom: 6px; font-weight: 600; }
form p { margin: 0 0 14px; }
.link-button { border: none; background: none; color: #dfe7f8; padding: 0; cursor: pointer; text-align: left; }
.link-button:hover { text-decoration: underline; }
.muted { color: var(--muted); }
.section-title { margin: 0 0 12px; font-size: 1.1rem; }
.list { display: grid; gap: 10px; }
.list-item { border: 1px solid var(--line); border-radius: 14px; padding: 14px; background: white; }
.list-item h3, .list-item h4 { margin: 0 0 6px; }
.kanban { display: grid; grid-template-columns: repeat(5, minmax(220px, 1fr)); gap: 14px; overflow-x: auto; }
.kanban-col { min-width: 220px; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 14px; }
.kanban-col h3 { margin-top: 0; }
.doc-meta { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 18px; }
.doc-meta .item { background: #f9fafb; border-radius: 12px; padding: 12px; }
.comment-box { display: grid; gap: 12px; }
.comment { border-left: 3px solid var(--line); padding-left: 12px; }
.message { border-radius: 12px; padding: 12px 14px; margin-bottom: 12px; background: #eff6ff; }
.message.error { background: #fde8e8; }
.message.success { background: #e7f7ee; }
.message.warning { background: #fef3c7; }
.messages { margin-bottom: 16px; }
pre { white-space: pre-wrap; word-break: break-word; background: #0f172a; color: #e5eefc; padding: 14px; border-radius: 14px; max-height: 460px; overflow: auto; }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.empty { color: var(--muted); font-style: italic; }
.login-body { display: grid; place-items: center; min-height: 100vh; }
.login-card { width: min(440px, 92vw); background: white; padding: 28px; border-radius: 18px; box-shadow: var(--shadow); border: 1px solid var(--line); }
.two-col { display: grid; grid-template-columns: 2fr 1fr; gap: 18px; }
hr { border: none; border-top: 1px solid var(--line); margin: 16px 0; }
.small { font-size: 0.9rem; }
@media (max-width: 1080px) {
    .layout { grid-template-columns: 1fr; }
    .sidebar { position: sticky; top: 0; z-index: 10; }
    .grid.cols-2, .grid.cols-3, .grid.cols-4, .two-col { grid-template-columns: 1fr; }
    .kanban { grid-template-columns: 1fr; }
}