:root {
    --bg: #f4f6f9;
    --surface: #ffffff;
    --border: #e2e6ec;
    --text: #1d2433;
    --muted: #6b7486;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --danger: #dc2626;
    --success: #059669;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 0; }

/* Layout */
.topbar { background: var(--surface); border-bottom: 1px solid var(--border); }
.topbar-inner, .container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
.topbar-inner { display: flex; align-items: center; gap: 24px; height: 56px; }
.brand { font-weight: 700; color: var(--text); }
.nav { display: flex; gap: 4px; flex: 1; }
.nav a { color: var(--muted); padding: 6px 10px; border-radius: 6px; }
.nav a.active, .nav a:hover { background: var(--bg); color: var(--text); text-decoration: none; }
.user { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 14px; }
.container { padding-top: 24px; padding-bottom: 48px; }

.page-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

/* Cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.card-head { padding: 14px 18px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.card-body { padding: 18px; }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: 2fr 1fr; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat { display: block; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
a.stat:hover { border-color: var(--primary); text-decoration: none; }
.stat-active { border-color: var(--primary); box-shadow: 0 0 0 2px #bfd3fe; }
.stat-value { font-size: 26px; font-weight: 700; }
.stat-label { color: var(--muted); font-size: 13px; }

/* Buttons & forms */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border);
    background: var(--surface); color: var(--text); font: inherit; font-size: 14px;
    cursor: pointer; white-space: nowrap;
}
.btn:hover { background: var(--bg); text-decoration: none; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-success { background: var(--success); border-color: var(--success); color: #fff; }
.btn-success:hover { filter: brightness(.95); background: var(--success); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(.95); background: var(--danger); }
.btn-lg { padding: 11px 20px; font-size: 15px; font-weight: 600; }
.btn-sm { padding: 3px 8px; font-size: 12px; }
.btn-link { background: none; border: none; color: var(--muted); padding: 0; cursor: pointer; font: inherit; }
.btn-link:hover { color: var(--text); }

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
input, select, textarea {
    width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px;
    font: inherit; font-size: 14px; background: #fff; color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid #bfd3fe; border-color: var(--primary); }
.checkbox { display: flex; align-items: center; gap: 8px; color: var(--text); font-size: 14px; }
.checkbox input { width: auto; }
.field { margin-bottom: 14px; }
.error { color: var(--danger); font-size: 13px; margin-top: 4px; }

.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; align-items: end; }
.filters .actions { display: flex; gap: 8px; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #ecfdf5; border: 1px solid #a7f3d0; color: #065f46; }
.alert-error { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); background: #f9fafb; }
th, td { padding: 10px 14px; border-bottom: 1px solid var(--border); }
tbody tr:hover { background: #f9fafb; }
td.nowrap { white-space: nowrap; }
.empty { text-align: center; color: var(--muted); padding: 40px; }

/* Status badges */
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.badge-draft { background: #f1f5f9; color: #475569; }
.badge-new { background: #dbeafe; color: #1e40af; }
.badge-in_progress { background: #fef3c7; color: #92400e; }
.badge-done { background: #d1fae5; color: #065f46; }
.badge-problem { background: #fee2e2; color: #991b1b; }
.badge-admin { background: #ede9fe; color: #5b21b6; }
.badge-operator { background: #f1f5f9; color: #475569; }

/* Application fields */
.fields { margin: 0; }
.field-row { display: grid; grid-template-columns: 200px 1fr auto; gap: 12px; align-items: center; padding: 10px 18px; border-bottom: 1px solid var(--border); }
.field-row:last-child { border-bottom: none; }
.field-row dt { color: var(--muted); font-size: 13px; }
.field-row dd { margin: 0; font-weight: 600; word-break: break-word; }
@media (max-width: 600px) { .field-row { grid-template-columns: 1fr auto; } .field-row dt { grid-column: 1 / -1; } }
.photo-preview { display: block; width: 160px; height: 160px; object-fit: cover; border-radius: 8px; border: 1px solid var(--border); }
.copy.copied { background: #d1fae5; border-color: #a7f3d0; color: #065f46; }

.status-pill { display: inline-block; vertical-align: middle; margin-left: 8px; padding: 4px 14px; border-radius: 999px; font-size: 15px; font-weight: 700; }
.status-box { padding: 16px 18px; border-bottom: 1px solid var(--border); border-radius: var(--radius) var(--radius) 0 0; }
.status-box-label { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; opacity: .75; }
.status-box-value { font-size: 22px; font-weight: 700; margin: 2px 0; }
.status-box-draft { background: #f1f5f9; color: #475569; }
.status-box-new { background: #dbeafe; color: #1e40af; }
.status-box-in_progress { background: #fef3c7; color: #92400e; }
.status-box-done { background: #d1fae5; color: #065f46; }
.status-box-problem { background: #fee2e2; color: #991b1b; }

.sticky { position: sticky; top: 16px; }
@media (max-width: 900px) { .sticky { position: static; } }

.action-stack { display: grid; gap: 10px; }
.action-stack form { margin: 0; }
.action-stack .btn { width: 100%; }

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { padding: 10px 18px; border-bottom: 1px solid var(--border); font-size: 14px; }
.timeline li:last-child { border-bottom: none; }
.timeline .comment { margin-top: 4px; padding: 6px 10px; background: var(--bg); border-radius: 6px; white-space: pre-line; }

.chat { display: flex; flex-direction: column; gap: 10px; padding: 16px 18px; max-height: 420px; overflow-y: auto; }
.bubble { max-width: 80%; padding: 8px 12px; border-radius: 12px; font-size: 14px; }
.bubble-in { align-self: flex-start; background: var(--bg); }
.bubble-out { align-self: flex-end; background: var(--primary); color: #fff; }
.bubble-text { white-space: pre-line; word-break: break-word; }
.bubble-meta { font-size: 11px; opacity: .7; margin-top: 2px; }
.chat-form { display: flex; gap: 8px; align-items: flex-end; padding: 12px 18px; border-top: 1px solid var(--border); }

.pagination { display: flex; gap: 4px; flex-wrap: wrap; margin-top: 16px; }
.pagination a, .pagination span { padding: 6px 12px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); font-size: 14px; }
.pagination .current { background: var(--primary); border-color: var(--primary); color: #fff; }
.pagination .disabled { color: var(--muted); }

/* Login */
.login { max-width: 360px; margin: 80px auto; }
.login h1 { text-align: center; margin-bottom: 20px; }