:root {
    color-scheme: light;
    --bg: #eef2f6;
    --panel: #ffffff;
    --panel-soft: #f7f9fb;
    --text: #1c2733;
    --muted: #667484;
    --border: #d7dee7;
    --primary: #1167b1;
    --primary-hover: #0b5798;
    --primary-soft: #e9f3fc;
    --success: #16834a;
    --success-soft: #e5f6ed;
    --warning: #a86500;
    --warning-soft: #fff3d6;
    --danger: #b32d2e;
    --danger-soft: #fdebec;
    --shadow: 0 8px 24px rgba(28, 39, 51, .08);
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #101820;
    --panel: #18232e;
    --panel-soft: #202d39;
    --text: #edf3f8;
    --muted: #a6b3c0;
    --border: #344352;
    --primary: #5aacee;
    --primary-hover: #79bcf1;
    --primary-soft: #17364f;
    --success: #55c985;
    --success-soft: #183c2a;
    --warning: #f2b84b;
    --warning-soft: #45361a;
    --danger: #f47b7d;
    --danger-soft: #4a2429;
    --shadow: 0 8px 28px rgba(0, 0, 0, .24);
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--bg); }
body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.45 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: var(--primary); }
button, input, select { font: inherit; }

.topbar {
    min-height: 66px;
    padding: 9px clamp(16px, 3vw, 42px);
    display: flex;
    align-items: center;
    gap: 28px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.brand { display: flex; align-items: center; gap: 11px; color: var(--text); text-decoration: none; }
.brand span:last-child { display: grid; }
.brand strong { font-size: 18px; }
.brand small { color: var(--muted); font-size: 11px; }
.brand-mark {
    width: 39px;
    height: 39px;
    display: grid;
    place-items: center;
    border-radius: 11px;
    background: linear-gradient(145deg, #1781cf, #0b4f91);
    color: white;
    font-weight: 800;
    font-size: 21px;
    box-shadow: 0 5px 14px rgba(17, 103, 177, .28);
}
.brand-mark.large { width: 52px; height: 52px; font-size: 28px; border-radius: 15px; }
.main-nav { align-self: stretch; display: flex; gap: 4px; }
.main-nav a {
    display: flex;
    align-items: center;
    padding: 0 15px;
    color: var(--muted);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
}
.main-nav a:hover, .main-nav a.active { color: var(--primary); background: var(--primary-soft); }
.user-panel { margin-left: auto; display: flex; align-items: center; gap: 14px; color: var(--muted); }
.user-panel form { margin: 0; }
.icon-button, .link-button, .danger-link {
    border: 0;
    background: transparent;
    color: var(--primary);
    cursor: pointer;
    padding: 5px;
}
.icon-button { font-size: 21px; }
.danger-link { color: var(--danger); }

.page { width: 100%; padding: 32px; margin: 28px auto; flex: 1; }
.page.login-page { display: grid; place-items: center; }
footer { text-align: center; color: var(--muted); font-size: 12px; padding: 18px; }

.page-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 5px; font-size: clamp(24px, 3vw, 34px); line-height: 1.18; }
h2 { font-size: 18px; margin-bottom: 16px; }
.page-heading p, .hint { margin-bottom: 0; color: var(--muted); }
.counter { color: var(--muted); white-space: nowrap; }
.heading-actions { display: flex; align-items: center; gap: 14px; }
.back-link { display: inline-block; margin-bottom: 8px; text-decoration: none; }

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 13px;
    box-shadow: var(--shadow);
    margin-bottom: 18px;
}
.compact-panel, .editor-panel { padding: 18px 20px; }
.editor-panel summary { cursor: pointer; font-weight: 700; font-size: 17px; }
.editor-panel[open] summary { margin-bottom: 18px; }

.grid-form { display: grid; grid-template-columns: repeat(4, minmax(150px, 1fr)); gap: 14px; }
.inline-form, .add-line-form, .filters { display: flex; align-items: end; gap: 13px; flex-wrap: wrap; }
.filters { padding: 15px 18px; }
.filters label { min-width: 220px; flex: 1; }
.add-line-form .grow { min-width: 320px; flex: 1; }
.span-2 { grid-column: span 2; }
.span-full { grid-column: 1 / -1; }
label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; font-weight: 600; }
.field-label { display: inline-flex; align-items: baseline; gap: 4px; }
input, select {
    min-height: 40px;
    width: 100%;
    padding: 8px 11px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--panel-soft);
    color: var(--text);
    outline: none;
}
input:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent); }
.required { color: var(--danger); }
.form-actions, .document-actions { display: flex; gap: 10px; }
.document-actions { justify-content: flex-end; margin-top: 20px; }

.button {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: 8px;
    text-decoration: none;
    cursor: pointer;
    font-weight: 700;
    white-space: nowrap;
}
.button.primary { background: var(--primary); color: white; }
.button.primary:hover { background: var(--primary-hover); }
.button.secondary { background: var(--panel-soft); color: var(--text); border-color: var(--border); }
.button.success { background: var(--success); color: #fff; }
.button.wide { width: 100%; }

.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; white-space: nowrap; }
th, td { padding: 11px 13px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
th { position: sticky; top: 0; background: var(--panel-soft); color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .025em; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--primary-soft); }
.number { text-align: right; font-variant-numeric: tabular-nums; }
.element-name { font-weight: 650; }
.table-action { text-decoration: none; font-weight: 650; }
.row-actions { display: flex; align-items: center; gap: 8px; }
.row-actions form { margin: 0; }
.drawing-link { color: var(--text); text-decoration: none; font-weight: 750; }
.drawing-link:hover { color: var(--primary); }
.cell-note { display: block; margin-top: 3px; color: var(--muted); }
.column-title { display: inline-grid; gap: 1px; }
.column-title small { color: var(--muted); font-size: 10px; font-weight: 500; text-transform: none; letter-spacing: 0; }
.date-cell-form { display: flex; align-items: center; gap: 6px; }
.date-cell-form input[type="date"] { min-width: 145px; min-height: 34px; padding: 5px 8px; }
.date-save-button { width: 32px; height: 32px; border: 0; border-radius: 7px; color: white; background: var(--primary); cursor: pointer; font-weight: 800; }
.date-save-button:hover { background: var(--primary-hover); }
.muted { color: var(--muted); }
.missing-value { color: var(--danger); font-weight: 700; white-space: nowrap; }
.drawings-table td { height: 58px; }
.empty { padding: 42px 20px; text-align: center; color: var(--muted); }
.empty-block { padding: 16px; border-radius: 9px; background: var(--panel-soft); color: var(--muted); }

.progress-badge, .status {
    display: inline-flex;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}
.progress-badge.complete, .status.posted { color: var(--success); background: var(--success-soft); }
.progress-badge.partial, .status.draft { color: var(--warning); background: var(--warning-soft); }
.progress-badge.over { color: var(--danger); background: var(--danger-soft); }
.progress-badge.empty-status { color: var(--muted); background: var(--panel-soft); }
.status.large { padding: 7px 12px; font-size: 13px; }

.alert { padding: 12px 15px; margin-bottom: 16px; border-radius: 9px; border: 1px solid; }
.alert-success { color: var(--success); background: var(--success-soft); border-color: var(--success); }
.alert-error { color: var(--danger); background: var(--danger-soft); border-color: var(--danger); }

.login-card { width: min(430px, 100%); padding: 30px; border: 1px solid var(--border); border-radius: 16px; background: var(--panel); box-shadow: var(--shadow); }
.login-heading { display: flex; gap: 15px; align-items: center; margin-bottom: 24px; }
.login-heading h1 { font-size: 25px; margin: 0; }
.login-heading p { color: var(--muted); margin: 3px 0 0; }
.form-stack { display: grid; gap: 16px; }
.error-page { max-width: 680px; margin: 80px auto; padding: 30px; text-align: center; }

.drawing-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 18px; }
.drawing-card { min-height: 190px; padding: 20px; color: var(--text); text-decoration: none; transition: transform .15s ease, border-color .15s ease; }
.drawing-card:hover { transform: translateY(-2px); border-color: var(--primary); }
.drawing-card-top, .drawing-stats, .section-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.drawing-symbol { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 10px; color: var(--primary); background: var(--primary-soft); font-size: 24px; }
.drawing-card h2 { margin: 18px 0 5px; font-size: 21px; }
.drawing-card p { min-height: 22px; color: var(--muted); }
.drawing-stats { margin-top: auto; padding-top: 15px; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; }
.type-badge { padding: 5px 9px; border-radius: 999px; font-size: 12px; font-weight: 750; }
.type-badge.rooms { color: var(--primary); background: var(--primary-soft); }
.type-badge.plain { color: var(--muted); background: var(--panel-soft); }
.empty-card { grid-column: 1 / -1; padding: 48px 24px; text-align: center; }
.empty-card p { color: var(--muted); }
.empty-icon { font-size: 44px; color: var(--primary); }

.form-card { padding: 24px; }
.narrow-card { max-width: 920px; }
.drawing-form { display: grid; gap: 18px; max-width: 840px; }
.vp-line-edit-form { display: grid; gap: 18px; }
.drawing-type-fieldset { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 0; padding: 0; border: 0; }
.drawing-type-fieldset legend { margin-bottom: 8px; color: var(--muted); font-size: 13px; font-weight: 650; }
.type-choice { display: flex; align-items: flex-start; gap: 10px; padding: 15px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel-soft); cursor: pointer; }
.type-choice:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); }
.type-choice input { width: auto; min-height: auto; margin-top: 4px; }
.type-choice span { display: grid; gap: 4px; color: var(--text); }
.type-choice small, label small { color: var(--muted); font-weight: 400; }

.rooms-panel { padding: 22px; }
.section-heading { margin-bottom: 18px; }
.section-heading h2 { margin-bottom: 3px; }
.section-heading p { margin: 0; color: var(--muted); }
.room-add-form { padding: 15px; margin-bottom: 15px; background: var(--panel-soft); border-radius: 10px; }
.room-add-form label { flex: 1; min-width: 180px; }
.room-list { display: grid; gap: 8px; }
.room-row { display: grid; grid-template-columns: minmax(100px, .4fr) minmax(180px, 1fr) auto auto auto; align-items: center; gap: 10px; padding: 10px; border: 1px solid var(--border); border-radius: 9px; }
.room-usage { color: var(--muted); font-size: 13px; white-space: nowrap; }
[hidden] { display: none !important; }

@media (max-width: 900px) {
    .topbar { position: static; flex-wrap: wrap; gap: 10px 18px; }
    .main-nav { order: 3; width: 100%; min-height: 42px; }
    .user-panel { margin-left: auto; }
    .grid-form { grid-template-columns: repeat(2, minmax(150px, 1fr)); }
}

@media (max-width: 620px) {
    .page { width: min(100% - 18px, 1600px); margin-top: 16px; }
    .brand small, .user-panel > span { display: none; }
    .page-heading { align-items: start; flex-direction: column; }
    .heading-actions { width: 100%; justify-content: space-between; }
    .grid-form { grid-template-columns: 1fr; }
    .span-2 { grid-column: span 1; }
    .inline-form, .add-line-form, .filters { align-items: stretch; flex-direction: column; }
    .filters label, .add-line-form .grow { min-width: 0; width: 100%; }
    .inline-form .button, .add-line-form .button, .filters .button { width: 100%; }
    .drawing-type-fieldset { grid-template-columns: 1fr; }
    .room-row { grid-template-columns: 1fr; }
}