:root {
  --bg: #f1f5f9; --card: #fff; --text: #0f172a; --muted: #64748b; --line: #e2e8f0;
  --primary: #2563eb; --primary-d: #1d4ed8; --danger: #dc2626; --ok: #16a34a;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: 'Sarabun', Tahoma, sans-serif; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.5; }
a { color: var(--primary); }
h1 { font-size: 1.45rem; margin: 0 0 .25rem; }
h2 { font-size: 1.15rem; margin: 0 0 .5rem; }
.muted { color: var(--muted); }
.wrap { width: 100%; max-width: 1600px; margin: 0 auto; padding: 16px; }

.topbar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 12px; padding: 8px 16px; background: #0f172a; color: #fff; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; min-width: 0; }
.brand .logo { font-size: 26px; }
.brand b, .brand small { display: block; line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand small { color: #94a3b8; font-size: 12px; }
.topbar nav { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.topbar .who { color: #cbd5e1; font-size: 14px; }
.topbar form { margin: 0; }
.topbar .btn-ghost { color: #fff; border-color: #334155; }
@media (max-width: 520px) { .topbar .who { display: none; } }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 1px 2px rgba(15,23,42,.04); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 8px 14px; border-radius: 10px; border: 1px solid var(--line); background: #fff; color: var(--text); font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; white-space: nowrap; }
.btn:hover { background: #f8fafc; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-d); }
.btn-danger { background: #fff; border-color: #fecaca; color: var(--danger); }
.btn-danger:hover { background: #fef2f2; }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; }

input, select, textarea { width: 100%; font: inherit; padding: 9px 11px; border: 1px solid #cbd5e1; border-radius: 10px; background: #fff; color: var(--text); }
input:focus, select:focus, textarea:focus { outline: 2px solid #bfdbfe; border-color: var(--primary); }
label { display: block; font-weight: 600; font-size: 14px; }
label > input, label > select, label > textarea { margin-top: 4px; font-weight: 400; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 520px) { .row2 { grid-template-columns: 1fr; } }
.actions { display: flex; justify-content: flex-end; gap: 8px; }
.wrap-btns { display: flex; flex-wrap: wrap; gap: 8px; }
.wrap-btns form { margin: 0; }

.alert { padding: 10px 14px; border-radius: 10px; margin-bottom: 12px; font-weight: 600; }
.alert-err { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-ok { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }

.login-card { max-width: 400px; margin: 10vh auto 0; padding: 28px; text-align: center; }
.login-card form { text-align: left; margin-top: 16px; }
.login-logo { font-size: 44px; }

.page-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 14px; }
.stat { padding: 12px 16px; }
.stat span { display: block; color: var(--muted); font-size: 13px; }
.stat b { font-size: 1.5rem; }
@media (max-width: 520px) { .stats { grid-template-columns: 1fr 1fr; } .stats .stat:last-child { grid-column: 1 / -1; } }

.toolbar { display: flex; flex-wrap: wrap; gap: 8px; padding: 10px; margin-bottom: 10px; }
.toolbar .grow { flex: 1 1 260px; }
.toolbar select { flex: 0 1 200px; }
.bulkbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 6px 0 12px; }
.bulkbar select { width: auto; }
.chk { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; }
.chk input { width: auto; }

.house-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.house { position: relative; overflow: hidden; }
.house-check { position: absolute; top: 8px; left: 8px; z-index: 2; background: rgba(255,255,255,.92); border-radius: 8px; padding: 4px 6px; }
.house-check input { width: 18px; height: 18px; margin: 0; display: block; }
.house-link { display: block; color: inherit; text-decoration: none; }
.cover { position: relative; aspect-ratio: 4 / 3; background: #e2e8f0; display: flex; align-items: center; justify-content: center; color: var(--muted); }
.cover img { width: 100%; height: 100%; object-fit: cover; }
.cover em { position: absolute; right: 8px; bottom: 8px; background: rgba(15,23,42,.8); color: #fff; font-style: normal; font-size: 12px; padding: 2px 8px; border-radius: 99px; }
.house-body { padding: 10px 12px; display: flex; flex-direction: column; gap: 2px; }
.house-body span { font-size: 14px; }
.empty { padding: 32px; text-align: center; }
.pager { display: flex; justify-content: center; align-items: center; gap: 12px; margin-top: 16px; }

.back { text-decoration: none; font-weight: 600; }
.house-layout { display: grid; grid-template-columns: 340px 1fr; gap: 16px; align-items: start; }
@media (max-width: 1024px) { .house-layout { grid-template-columns: 1fr; } }
.info { padding: 16px; position: sticky; top: 72px; }
@media (max-width: 1024px) { .info { position: static; } }
.info dl { display: grid; grid-template-columns: 90px 1fr; gap: 4px 10px; margin: 10px 0 14px; font-size: 14px; }
.info dt { color: var(--muted); }
.info dd { margin: 0; word-break: break-word; }
.pre { white-space: pre-wrap; }
.print-box { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 8px; }

.dropzone.card { border: 2px dashed #93c5fd; background: #eff6ff; min-height: 180px; padding: 16px; border-radius: 14px; }
.dropzone.dz-drag-hover { border-color: var(--primary); background: #dbeafe; }
.dropzone .dz-message { margin: 1.5em 0; display: flex; flex-direction: column; align-items: center; gap: 4px; text-align: center; }
.dz-icon { font-size: 40px; }
.dropzone .dz-preview .dz-image { border-radius: 12px; }
.dropzone .dz-preview .dz-error-message { top: 140px; }
.dz-summary { min-height: 1.5em; margin: 8px 2px; font-weight: 600; }

.gallery-title { margin-top: 18px; }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.photo { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.photo a { display: block; aspect-ratio: 4 / 3; background: #e2e8f0; }
.photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.photo figcaption { position: relative; padding: 8px; display: flex; flex-direction: column; gap: 4px; }
.photo .caption { padding: 6px 8px; font-size: 13px; padding-right: 34px; }
.photo .caption.saved { border-color: var(--ok); outline: 2px solid #bbf7d0; }
.photo small { font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.photo .del { position: absolute; right: 12px; top: 12px; border: 0; background: transparent; cursor: pointer; font-size: 16px; padding: 2px; }
.gallery .empty { grid-column: 1 / -1; }

.modal { border: 0; border-radius: 16px; padding: 20px; width: min(560px, calc(100vw - 32px)); box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.modal::backdrop { background: rgba(15,23,42,.55); }

.small-note { font-size: 13px; margin: 0; }
.btn-sm { padding: 4px 10px; font-size: 13px; border-radius: 8px; }
.tuser { border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; display: flex; flex-direction: column; gap: 4px; }
.tuser-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.tuser-head b { word-break: break-all; }
.tuser-btns { gap: 6px; }
.badge { font-size: 12px; font-weight: 700; padding: 1px 8px; border-radius: 99px; white-space: nowrap; }
.badge-on { background: #dcfce7; color: #166534; }
.badge-off { background: #fee2e2; color: #991b1b; }
.cred { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.cred-qr { width: 132px; height: 132px; flex: 0 0 auto; }
.cred dl { display: grid; grid-template-columns: 80px 1fr; gap: 4px 10px; margin: 0; flex: 1 1 220px; }
.cred dt { color: var(--muted); }
.cred dd { margin: 0; word-break: break-all; }
.cred code { font-size: 1.25rem; font-weight: 700; background: #f1f5f9; padding: 2px 8px; border-radius: 6px; letter-spacing: .5px; }
@media (max-width: 1024px) { .owner-view .uploader { order: -1; } }
.row-name { display: grid; grid-template-columns: 120px 1fr 1fr; gap: 12px; }
@media (max-width: 520px) { .row-name { grid-template-columns: 1fr 1fr; } .row-name label:first-child { grid-column: 1 / -1; } }