:root {
  --bg: #f4f6f9; --panel: #fff; --text: #1d2430; --muted: #6b7684; --line: #dde3ea;
  --primary: #1f6feb; --primary-dk: #185cc7; --danger: #d33; --ok: #1a7f37; --warn: #b26a00;
  --radius: 10px; --shadow: 0 1px 3px rgba(0,0,0,.07), 0 4px 16px rgba(0,0,0,.05);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Thai", sans-serif; background: var(--bg); color: var(--text); display: flex; flex-direction: column; }
a { color: var(--primary); text-decoration: none; }
h1 { font-size: 26px; margin: 0 0 4px; }
h2 { font-size: 18px; margin: 0 0 12px; }
h3 { font-size: 15px; margin: 18px 0 8px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.muted { color: var(--muted); } .small { font-size: 12.5px; } .warn { color: var(--warn); } .nowrap { white-space: nowrap; }

/* top bar */
.topbar { display: flex; align-items: center; gap: 24px; padding: 0 20px; height: 52px; background: #14202e; color: #fff; flex-shrink: 0; }
.brand { color: #fff; font-weight: 700; font-size: 17px; }
.topbar nav { display: flex; gap: 4px; margin-left: auto; }
.topbar nav a { color: #c9d3df; padding: 6px 12px; border-radius: 6px; }
.topbar nav a:hover, .topbar nav a.active { background: rgba(255,255,255,.12); color: #fff; }

.container { width: min(1100px, 100% - 40px); margin: 24px auto; flex: 1; }

/* cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin: 20px 0 32px; }
.card { background: var(--panel); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); color: var(--text); transition: transform .12s; }
.card:hover { transform: translateY(-2px); }
.card-icon { font-size: 30px; margin-bottom: 8px; }
.card p { color: var(--muted); margin: 6px 0 0; font-size: 14px; }

/* panels & forms */
.two-col { display: grid; grid-template-columns: 1fr 1.3fr; gap: 20px; margin-top: 18px; }
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; } }
.panel { background: var(--panel); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
label { display: flex; flex-direction: column; gap: 4px; font-size: 13.5px; color: var(--muted); margin-bottom: 10px; }
label.check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); }
input[type=text], input[type=number], input[type=password], select {
  font: inherit; padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--text); }
input[type=color] { width: 60px; height: 34px; padding: 2px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
input[type=range] { width: 100%; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 16px; }
@media (max-width: 600px) { .grid2, .grid3 { grid-template-columns: 1fr; } }

.btn { display: inline-block; font: inherit; padding: 7px 14px; border-radius: 6px; border: 1px solid var(--line); background: #fff; color: var(--text); cursor: pointer; }
.btn:hover { background: #f0f3f7; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dk); }
.btn.danger { color: var(--danger); }
.btn.small { padding: 3px 9px; font-size: 13px; }
.btn.big { padding: 10px 22px; font-size: 16px; }
.btn:disabled { opacity: .5; cursor: default; }
.actions { display: flex; gap: 10px; align-items: center; margin-top: 14px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 14px; }
.tab { font: inherit; background: none; border: none; padding: 8px 12px; cursor: pointer; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.dropzone { border: 2px dashed #b9c3cf; border-radius: var(--radius); padding: 26px; text-align: center; cursor: pointer; margin-bottom: 10px; }
.dropzone.over { border-color: var(--primary); background: #eef4ff; }
.dropzone input { display: none; }
.dropzone p { margin: 4px 0; }
.file-list { list-style: none; padding: 0; margin: 0 0 12px; font-size: 14px; }
.file-list li { padding: 3px 0; border-bottom: 1px dotted var(--line); }
.info { background: #eef4ff; border-radius: 6px; padding: 10px 12px; margin-top: 14px; font-size: 14px; }

.alert { padding: 10px 14px; border-radius: 6px; margin: 12px 0; }
.alert.error { background: #fde8e8; color: #a12; }
.alert.ok { background: #e6f5ea; color: var(--ok); }
.log { background: #14202e; color: #d8e1ea; font: 12.5px/1.5 Consolas, monospace; padding: 12px; border-radius: 6px; white-space: pre-wrap; max-height: 220px; overflow: auto; margin-top: 14px; }

.table { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; font-size: 14px; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { background: #f7f9fb; color: var(--muted); font-weight: 600; font-size: 13px; }
.table tr:last-child td { border-bottom: none; }

#toast { position: fixed; bottom: 20px; left: 50%; transform: translate(-50%, 20px); background: #14202e; color: #fff; padding: 10px 18px; border-radius: 8px; opacity: 0; transition: .2s; pointer-events: none; z-index: 2000; }
#toast.show { opacity: 1; transform: translate(-50%, 0); }
#toast.error { background: var(--danger); }

/* login */
.page-login { align-items: center; justify-content: center; }
.login-box { background: var(--panel); padding: 32px; border-radius: 14px; box-shadow: var(--shadow); width: min(380px, 90vw); }
.login-box h1 { text-align: center; }
.login-box p { text-align: center; margin-top: 0; }
.login-box button { width: 100%; margin-top: 8px; }

/* map page */
.map-main { flex: 1; display: flex; min-height: 0; }
.layer-panel { width: 320px; background: var(--panel); border-right: 1px solid var(--line); display: flex; flex-direction: column; flex-shrink: 0; }
.panel-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.panel-head h2 { margin: 0; }
.layers { list-style: none; margin: 0; padding: 6px 0; overflow: auto; flex: 1; }
.layers li { display: flex; align-items: center; gap: 6px; padding: 6px 12px; font-size: 14px; border-bottom: 1px solid #f0f2f5; }
.layers li.on { background: #f3f7ff; }
.layers li input[type=color] { width: 26px; height: 24px; padding: 0; flex: none; }
.layers li input[type=range] { width: 44px; flex: none; margin: 0; }
.layers .lname { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.layers .icon { background: none; border: none; cursor: pointer; font-size: 15px; color: var(--muted); padding: 2px 4px; }
.layers .icon:hover { color: var(--text); }
.panel-foot { padding: 8px 14px; border-top: 1px solid var(--line); }
#map { flex: 1; min-height: 0; }
.coord-box { background: rgba(255,255,255,.9); padding: 2px 8px; font: 12px monospace; border-radius: 4px; }
.popup table { border-collapse: collapse; font-size: 12.5px; }
.popup th, .popup td { text-align: left; padding: 2px 6px; border-bottom: 1px solid #eee; vertical-align: top; }
.popup th { color: var(--muted); font-weight: 600; white-space: nowrap; }
@media (max-width: 700px) { .map-main { flex-direction: column; } .layer-panel { width: 100%; max-height: 40vh; border-right: none; border-bottom: 1px solid var(--line); } }

/* nav dropdown */
.topbar nav .menu { position: relative; }
.topbar nav .menu-btn { color: #c9d3df; padding: 6px 12px; border-radius: 6px; display: inline-block; }
.topbar nav .menu.active .menu-btn, .topbar nav .menu:hover .menu-btn { background: rgba(255,255,255,.12); color: #fff; }
.topbar nav .dropdown { display: none; position: absolute; top: 100%; left: 0; background: #1c2a3a; border-radius: 8px; padding: 6px; min-width: 230px; box-shadow: 0 8px 24px rgba(0,0,0,.3); z-index: 1500; }
.topbar nav .menu:hover .dropdown { display: block; }
.topbar nav .dropdown a { display: block; white-space: nowrap; }
.nav-soon { color: #6f7f92; padding: 6px 12px; cursor: default; }

/* home groups */
.groups { display: grid; gap: 16px; margin: 20px 0 32px; }
.group { background: var(--panel); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 20px; }
.group.soon { opacity: .6; }
.group-head { display: flex; align-items: center; gap: 14px; color: var(--text); margin-bottom: 12px; }
.group-head h2 { margin: 0; } .group-head p { margin: 0; color: var(--muted); font-size: 14px; }
.group-icon { font-size: 32px; }
.group-tools { display: flex; flex-wrap: wrap; gap: 10px; }
.tool { display: flex; flex-direction: column; background: #f4f6f9; border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; color: var(--text); min-width: 150px; }
.tool:hover { border-color: var(--primary); background: #eef4ff; }
.tool span { font-size: 12.5px; color: var(--muted); }

textarea { font: 13px/1.5 Consolas, monospace; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; width: 100%; resize: vertical; }
code { background: #eef1f5; padding: 1px 5px; border-radius: 4px; font-size: 13px; }
.table-wrap { overflow-x: auto; margin-top: 10px; }
.table.small th, .table.small td { padding: 5px 8px; font-size: 12.5px; }

/* draw panel */
.draw-panel { border-top: 1px solid var(--line); }
.draw-panel .panel-head { border-bottom: none; padding-bottom: 4px; }
.draw-panel h2 { font-size: 15px; }
.leaflet-draw-tooltip { font-size: 12px; }

/* ---------------- georeference page ---------------- */
.gr-main { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.gr-bar { display: flex; align-items: center; gap: 10px; padding: 8px 14px; background: var(--panel);
  border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.gr-spacer { flex: 1; }
.gr-panes { display: flex; flex: 1; min-height: 0; gap: 1px; background: var(--line); }
.gr-pane { flex: 1; display: flex; flex-direction: column; min-width: 0; background: var(--panel); }
.gr-pane-head { display: flex; align-items: center; gap: 10px; padding: 5px 12px; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.gr-map { flex: 1; min-height: 220px; background: #e9edf2; }
#img-map { background: #4a4f57; }
.gr-bottom { background: var(--panel); border-top: 1px solid var(--line); padding: 10px 14px; max-height: 42vh; overflow: auto; flex-shrink: 0; }
.gr-cols { display: flex; gap: 18px; align-items: flex-start; }
.gr-col-table { flex: 1; min-width: 0; }
.gr-col-side { width: 330px; flex-shrink: 0; }
.gr-row-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.gr-table-wrap { max-height: 180px; overflow: auto; }
.gr-table-wrap .table { box-shadow: none; border: 1px solid var(--line); }
.gr-table-wrap tr.hl td { background: #fff6d9; }
.gr-table-wrap tr:hover td { background: #f3f7ff; cursor: pointer; }
.gr-table-wrap input.nm { border: 1px solid transparent; background: transparent; padding: 1px 4px; font: inherit; border-radius: 4px; }
.gr-table-wrap input.nm:focus { border-color: var(--line); background: #fff; }
.gr-manual { display: flex; align-items: center; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.gr-manual select, .gr-manual input { font-size: 13px; padding: 4px 8px; }
.gr-exports { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
@media (max-width: 1200px) { .gr-exports { grid-template-columns: 1fr; } }
.gr-exports .btn { text-align: left; }
label.inline { flex-direction: row; align-items: center; gap: 6px; margin: 0; }
td.ok, .ok { color: var(--ok); } td.warn, .warn { color: var(--warn); } td.bad, .bad { color: var(--danger); }
.icon { background: none; border: none; cursor: pointer; color: var(--muted); font-size: 14px; padding: 0 4px; }
.icon:hover { color: var(--danger); }
.gcp-pin { display: flex; align-items: center; justify-content: center; width: 22px; height: 22px;
  background: #e6194b; color: #fff; border: 2px solid #fff; border-radius: 50%;
  font: bold 11px/1 system-ui, sans-serif; box-shadow: 0 1px 4px rgba(0,0,0,.5); }
/* NOTE: never animate `transform` on a Leaflet marker icon — Leaflet uses
   transform to position it, so the pin would jump to the pane corner. */
.gcp-pin.pending { background: #1f6feb; animation: gcp-pulse 1.3s ease-out infinite; }
@keyframes gcp-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(31,111,235,.65), 0 1px 4px rgba(0,0,0,.5); }
  70%  { box-shadow: 0 0 0 12px rgba(31,111,235,0), 0 1px 4px rgba(0,0,0,.5); }
  100% { box-shadow: 0 0 0 0 rgba(31,111,235,0), 0 1px 4px rgba(0,0,0,.5); }
}
@media (max-width: 900px) { .gr-panes { flex-direction: column; } .gr-cols { flex-direction: column; } .gr-col-side { width: 100%; } }

/* ---------------- CRS picker / zone helper ---------------- */
.crs-extra { display: flex; gap: 8px; margin: -4px 0 6px; }
.crs-extra input, .crs-extra select { font-size: 13px; padding: 5px 8px; }
.crs-info { font-size: 12.5px; line-height: 1.45; color: var(--text); background: #f4f6f9;
  border: 1px solid var(--line); border-radius: 6px; padding: 7px 10px; min-height: 34px; }
.crs-info .places { color: var(--muted); font-size: 12px; }
.row-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.zone-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 6px;
  margin-top: 12px; max-height: 240px; overflow: auto; padding-right: 4px; }
.zone-head { grid-column: 1 / -1; display: flex; align-items: center; gap: 10px; }
.zone-row { display: grid; grid-template-columns: 78px 130px 1fr; gap: 8px; align-items: baseline;
  text-align: left; font: inherit; font-size: 12.5px; background: #fff; border: 1px solid var(--line);
  border-radius: 6px; padding: 6px 9px; cursor: pointer; }
.zone-row:hover { border-color: var(--primary); background: #eef4ff; }
.zone-row.cur { border-color: var(--primary); background: #e7f0ff; }
.zone-row .places { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* credit line (INSTALL_MARINE) */
.credit { flex-shrink: 0; padding: 10px 20px 14px; text-align: center; font-size: 11.5px;
  color: var(--muted); opacity: .5; letter-spacing: .02em; transition: opacity .15s; }
.credit:hover { opacity: 1; }
.page-login .credit { position: absolute; left: 0; right: 0; bottom: 10px; }
.page-map .credit, .page-georef .credit { position: absolute; right: 8px; bottom: 2px; left: auto;
  padding: 2px 8px; background: rgba(255,255,255,.75); border-radius: 5px; z-index: 500; }