:root {
    --bg: #f4f6f9;
    --card: #ffffff;
    --text: #1a2332;
    --muted: #5c6b7a;
    --primary: #1f5c99;
    --primary-soft: #e8f1fb;
    --danger: #b42318;
    --success: #067647;
    --border: #d8dee6;
    --shadow: 0 8px 24px rgba(16, 24, 40, 0.08);
    --radius: 12px;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Segoe UI", system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.app { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }

.sidebar {
    background: #10233d;
    color: #fff;
    padding: 1.25rem;
}

.brand { margin-bottom: 1.5rem; }
.brand strong { display: block; font-size: 1.25rem; }
.brand span { color: #9db4cc; font-size: 0.85rem; }

#nav { display: flex; flex-direction: column; gap: 0.35rem; }
#nav button {
    background: transparent;
    border: 0;
    color: #d7e4f2;
    text-align: left;
    padding: 0.65rem 0.8rem;
    border-radius: 8px;
    cursor: pointer;
}
#nav button:hover, #nav button.active {
    background: rgba(255,255,255,0.12);
    color: #fff;
}

.content { padding: 1.5rem 2rem; }
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}
.topbar-left { display:flex; flex-direction:column; gap:.75rem; }
.context-selectors { display:flex; gap:1rem; flex-wrap:wrap; }
.context-selectors label { font-size:.85rem; color:var(--muted); }
.context-selectors select { margin-left:.35rem; padding:.35rem .5rem; }
.sidebar-footer { margin-top:2rem; padding-top:1rem; border-top:1px solid rgba(255,255,255,.15); color:#9db4cc; }
.sidebar-nav-link {
    display: block;
    width: 100%;
    text-align: left;
    padding: .55rem .75rem;
    margin-top: .35rem;
    border-radius: 8px;
    color: #dce6f2;
    text-decoration: none;
    font: inherit;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.12);
}
.sidebar-nav-link:hover { background: rgba(255,255,255,.14); color: #fff; }
.sidebar-nav-link-security { background: rgba(180,35,24,.25); border-color: rgba(255,150,150,.25); }
.topbar h1 { margin: 0; font-size: 1.6rem; }

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.1rem;
    box-shadow: var(--shadow);
}
.card .label { color: var(--muted); font-size: 0.85rem; }
.card .value { font-size: 1.5rem; font-weight: 700; margin-top: 0.35rem; }
.card.danger .value { color: var(--danger); }
.card.success .value { color: var(--success); }

.panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.panel-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--border); }
th { background: #f8fafc; font-size: 0.85rem; color: var(--muted); }
tr:hover td { background: #fafcff; }

.btn {
    border: 0;
    border-radius: 8px;
    padding: 0.55rem 0.9rem;
    cursor: pointer;
    font: inherit;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: var(--primary-soft); color: var(--primary); }
.btn-danger { background: #fdecec; color: var(--danger); }
.btn + .btn { margin-left: 0.5rem; }

.badge {
    display: inline-block;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-active { background: #dcfae6; color: var(--success); }
.badge-draft { background: #eef2f6; color: var(--muted); }
.badge-overdue { background: #fdecec; color: var(--danger); }
.badge-issued { background: #fff4e5; color: #b54708; }

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
}
.form-grid label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.9rem; }
.form-grid input, .form-grid select, .form-grid textarea {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.55rem 0.65rem;
    font: inherit;
}
.form-grid .full { grid-column: 1 / -1; }

.empty { padding: 2rem; text-align: center; color: var(--muted); }

.rec-list { padding: 1rem 1.25rem; display: grid; gap: 0.75rem; }
.rec-card { border: 1px solid var(--border); border-radius: 8px; padding: 0.85rem 1rem; background: #fafcff; }
.rec-high { border-left: 4px solid var(--danger); }
.rec-medium { border-left: 4px solid #b54708; }
.rec-low { border-left: 4px solid var(--success); }
.rec-impact { font-weight: 600; margin: 0.35rem 0 0; }
.disclaimer { padding: 0 1.25rem 1rem; color: var(--muted); font-size: 0.85rem; }

.photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 0.75rem; }
.photo-grid img { width: 100%; height: 100px; object-fit: cover; border-radius: 8px; border: 1px solid var(--border); }
.photo-grid figcaption { font-size: 0.75rem; color: var(--muted); }

.form-grid h3.full { margin: 0.5rem 0 0; grid-column: 1 / -1; font-size: 1rem; color: var(--primary); }

.modal.hidden { display: none; }
.modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-backdrop { position: absolute; inset: 0; background: rgba(16,24,40,0.45); }
.modal-panel {
    position: relative;
    width: min(720px, calc(100vw - 2rem));
    max-height: calc(100vh - 2rem);
    overflow: auto;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.modal-header, .modal-footer {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-footer { border-bottom: 0; border-top: 1px solid var(--border); justify-content: flex-end; }
.modal-body { padding: 1.25rem; }
.icon-btn {
    border: 0;
    background: transparent;
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}

@media (max-width: 900px) {
    .app { grid-template-columns: 1fr; }
    .sidebar { padding-bottom: 0.5rem; }
    #nav { flex-direction: row; flex-wrap: wrap; }
    .form-grid { grid-template-columns: 1fr; }
}

.property-editor .property-section { margin-bottom: 0; }
.property-editor h4 { margin: 0 0 0.75rem; font-size: 0.95rem; color: var(--primary); }
.property-editor h4 .muted { color: var(--muted); font-weight: normal; font-size: 0.85rem; }
.meter-block {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    background: #fafcff;
}
.meter-block:last-child { margin-bottom: 0; }
.meter-fields { margin-bottom: 0.75rem; }
.meter-hint { font-size: 0.85rem; color: var(--muted); margin: 0 0 0.75rem; }
.meter-readings-table { margin-bottom: 0.5rem; font-size: 0.9rem; }
.meter-readings-table input,
.meter-readings-table select { width: 100%; padding: 0.35rem 0.45rem; font-size: 0.85rem; }
.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.85rem; }
#topbar-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }

.doc-legal-note { font-size: 0.85rem; color: var(--muted); line-height: 1.45; }
.doc-toolbar { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; max-width: 100%; }
.doc-toolbar select { min-width: 10rem; max-width: 100%; padding: 0.35rem 0.5rem; }

.doc-list-panel { padding: 0; }
.doc-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem 1rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
}
.doc-row:last-child { border-bottom: 0; }
.doc-row-main { flex: 1 1 220px; min-width: 0; }
.doc-title { display: block; margin-bottom: 0.35rem; word-break: break-word; }
.doc-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.85rem;
    font-size: 0.85rem;
    color: var(--muted);
}
.doc-meta span { white-space: normal; }
.doc-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    flex: 0 1 auto;
    align-items: flex-start;
}
.doc-actions .btn { margin-left: 0; white-space: nowrap; }

.property-assign-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 1rem;
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--border);
}
.property-assign-row:last-child { border-bottom: 0; }

.feature-warning {
    background: #fff4e5;
    border: 1px solid #f5c66a;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}
.feature-warning code { font-size: 0.85em; }

@media (max-width: 900px) {
    .doc-row { flex-direction: column; }
    .doc-actions { width: 100%; }
    .doc-actions .btn { flex: 1 1 calc(50% - 0.25rem); text-align: center; min-width: 8rem; }
    .doc-toolbar .btn { flex: 1 1 auto; }
    .context-selectors { flex-direction: column; align-items: flex-start; }
}