:root {
  --bg: #f4f6f8; --card: #fff; --ink: #1b2229; --muted: #5f6b77; --line: #d5dbe1;
  --hdr: #13254a; --hdr2: #1f3a66; --brand: #0b6fb0; --acc: #e87b0c; --acc-ink: #fff; --danger: #c62f2f;
  --cs1: #2e9e5b; --cs2: #c9a400; --cs3: #e8741c; --cs4: #d23a3a; --cs0: #6b7580;
  --conc: #dfe3e8; --conc-s: #6b7580; --timber: #e8c99a; --timber-s: #8a6436; --water: #bfdcf2; --ground: #eadfc9;
  --sel: #e87b0c; --r: 12px; --tap: 48px;
  --safe-t: env(safe-area-inset-top, 0px); --safe-b: env(safe-area-inset-bottom, 0px);
}
body.sun { --bg: #fff; --ink: #000; --muted: #333; --line: #888; --hdr: #000; --conc: #eee; --conc-s: #000; --timber-s: #4a2f0c; }
body.sun { font-size: 18px; }
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; }
body { background: var(--bg); color: var(--ink); font: 16px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; overscroll-behavior: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
#app { height: 100%; display: flex; flex-direction: column; }

/* header */
.hdr { background: linear-gradient(90deg, #0a1422 0%, #0f2033 38%, #163a4c 72%, #1d5566 100%); border-bottom: 1px solid rgba(255,255,255,.06); color: #fff; padding: calc(10px + var(--safe-t)) 12px 10px; display: flex; align-items: center; gap: 8px; min-height: 56px; flex: none; }
.hdr h1 { font-size: 17px; margin: 0; font-weight: 700; flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hdr .logo { height: 40px; width: auto; flex: none; }
.brand { display: flex; align-items: center; gap: 8px; flex: none; text-decoration: none; }
.brand-txt { line-height: 1.05; font-weight: 800; font-size: 15px; color: #fff; letter-spacing: -.01em; }
.brand-txt span { display: block; color: #3aa6e8; }
.brand-sep { width: 1px; align-self: stretch; margin: 4px 6px; background: rgba(255,255,255,.18); flex: none; }
.hdr h1.app-name { font-size: 15px; }
@media (max-width: 420px) { .brand-txt { display: none; } }
.main { display: flex; flex-direction: column; }
.main > .wrap, .main > .rp, .main > .rp-tools, .wrap .wrap { width: 100%; }
.wb-foot { text-align: center; font-size: 13px; color: #5f6b77; background: #fff; border-top: 1px solid var(--line);
  margin: auto -12px calc(-16px - var(--safe-b)); margin-top: max(24px, auto); padding: 14px 12px calc(14px + var(--safe-b)); flex: none; }
.main > .wrap + .wb-foot { margin-top: auto; }
.main::after { content: none; }
.wb-foot a { color: #22a45d; font-weight: 600; text-decoration: none; }
.wb-foot a:hover { text-decoration: underline; }
.hdr h1 small { display: block; font-weight: 500; font-size: 12px; opacity: .75; }
.hbtn { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); color: #fff; border-radius: 10px; min-width: 44px; height: 44px; padding: 0 12px; font-weight: 600; display: inline-flex; align-items: center; justify-content: center; gap: 6px; white-space: nowrap; }
.hbtn.acc { background: var(--acc); border-color: var(--acc); }
.pill { font-size: 12px; padding: 4px 9px; border-radius: 99px; background: var(--hdr2); white-space: nowrap; }
.pill.warn { color: #ffd59a; }
.pill.ok { color: #b8e6c8; }

.main { flex: 1; overflow: auto; -webkit-overflow-scrolling: touch; padding: 12px 12px calc(16px + var(--safe-b)); }
.wrap { max-width: 900px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }

/* generic */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 14px; }
.card h2 { font-size: 15px; margin: 0 0 10px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.sec { font-size: 12px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin: 6px 2px 0; }
.btn { background: var(--card); border: 1px solid var(--line); border-radius: 12px; min-height: var(--tap); padding: 10px 16px; font-weight: 600; display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.btn.acc { background: var(--acc); color: var(--acc-ink); border-color: var(--acc); }
.btn.dark { background: var(--hdr); color: #fff; border-color: var(--hdr); }
.btn.danger { color: var(--danger); }
.btn.block { width: 100%; }
.btn:disabled { opacity: .5; }
.btn:active, .hbtn:active, .item:active { transform: scale(.98); }
.seg { display: flex; background: #e1e6eb; border-radius: 12px; padding: 3px; gap: 3px; }
.seg button { flex: 1; border: 0; background: transparent; border-radius: 9px; padding: 9px 8px; font-weight: 600; color: var(--muted); min-height: 42px; white-space: nowrap; }
.seg button.on { background: #fff; color: var(--ink); box-shadow: 0 1px 2px rgba(0,0,0,.12); }
.search { width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; background: #fff; min-height: var(--tap); }
.item { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 12px; display: flex; gap: 12px; align-items: center; text-align: left; width: 100%; }
.item .ico { width: 42px; height: 42px; border-radius: 10px; background: #eef1f4; display: grid; place-items: center; flex: none; font-size: 20px; }
.item b { display: block; }
.item small { color: var(--muted); }
.chev { color: var(--muted); font-size: 22px; margin-left: auto; }
.badge { display: inline-block; font-size: 11px; font-weight: 700; padding: 2px 7px; border-radius: 6px; color: #fff; background: var(--cs0); vertical-align: 1px; }
.b-open { background: var(--acc); } .b-done { background: var(--cs1); } .b-warn { background: var(--cs4); }
.empty { text-align: center; padding: 30px 16px; color: var(--muted); }

/* forms */
.field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.field > span { font-size: 12px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.field input, .field select, .field textarea { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; background: #fff; min-height: var(--tap); width: 100%; }
.field textarea { min-height: 88px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 3px solid rgba(232,123,12,.35); border-color: var(--acc); }
.g2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.g3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.g5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
@media (max-width: 520px) { .g5 { grid-template-columns: repeat(3, 1fr); } }
.check { display: flex; align-items: center; gap: 10px; min-height: 44px; }
.check input { width: 24px; height: 24px; accent-color: var(--acc); }
.cs-btns { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.cs-btns button { border: 0; border-radius: 12px; min-height: 58px; color: #fff; font-weight: 800; font-size: 20px; opacity: .35; }
.cs-btns button small { display: block; font-size: 11px; font-weight: 600; }
.cs-btns button.on { opacity: 1; outline: 3px solid var(--ink); outline-offset: 2px; }
.cs1 { background: var(--cs1); } .cs2 { background: var(--cs2); } .cs3 { background: var(--cs3); } .cs4 { background: var(--cs4); } .cs0 { background: var(--cs0); }
.csdesc { font-size: 13px; color: var(--muted); min-height: 18px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { border: 1px solid var(--line); background: #fff; border-radius: 99px; padding: 8px 12px; min-height: 40px; font-size: 14px; font-weight: 600; }
.chip.on { background: var(--hdr); color: #fff; border-color: var(--hdr); }
.locbox { border: 2px solid var(--acc); background: #fff7ee; border-radius: 12px; padding: 10px 12px; }
.locbox b { display: block; }

/* photos */
.photos { display: flex; flex-wrap: wrap; gap: 8px; }
.thumb { width: 84px; height: 84px; border-radius: 10px; object-fit: cover; background: #ccd; border: 1px solid var(--line); position: relative; overflow: hidden; }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb .x { position: absolute; top: 3px; right: 3px; width: 26px; height: 26px; border-radius: 50%; border: 0; background: rgba(0,0,0,.65); color: #fff; font-size: 14px; line-height: 1; }
.addph { width: 84px; height: 84px; border-radius: 10px; border: 2px dashed var(--acc); background: #fff7ee; color: var(--acc); font-weight: 700; font-size: 12px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; }
.addph i { font-style: normal; font-size: 26px; }

/* workspace */
.ws { flex: 1; display: flex; min-height: 0; }
.ws-diag { flex: 1; display: flex; flex-direction: column; min-width: 0; padding: 8px; gap: 8px; }
.ws-bar { display: flex; gap: 6px; align-items: center; overflow-x: auto; scrollbar-width: none; flex: none; }
.ws-bar::-webkit-scrollbar { display: none; }
.ws-bar .seg { flex: none; }
.ws-bar .btn { min-height: 44px; padding: 8px 12px; flex: none; }
.diag-box { flex: 1; background: #fff; border: 1px solid var(--line); border-radius: var(--r); position: relative; overflow: hidden; touch-action: none; min-height: 180px; }
.diag-box svg { width: 100%; height: 100%; display: block; user-select: none; -webkit-user-select: none; }
.diag-hint { position: absolute; left: 10px; bottom: 8px; font-size: 12px; color: var(--muted); background: rgba(255,255,255,.85); padding: 3px 8px; border-radius: 8px; pointer-events: none; }
.zoom { position: absolute; right: 8px; top: 8px; display: flex; flex-direction: column; gap: 6px; }
.zoom button { width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--line); background: rgba(255,255,255,.95); font-size: 20px; font-weight: 700; }
.ws-side { width: 340px; border-left: 1px solid var(--line); background: #fff; display: flex; flex-direction: column; min-height: 0; flex: none; }
.ws-side .h { padding: 12px; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 8px; font-weight: 700; }
.dlist { flex: 1; overflow: auto; -webkit-overflow-scrolling: touch; }
.drow { display: flex; gap: 10px; padding: 12px; border-bottom: 1px solid #edf0f3; width: 100%; background: none; border-left: 0; border-right: 0; border-top: 0; text-align: left; align-items: flex-start; }
.drow.on { background: #fff4e8; box-shadow: inset 4px 0 0 var(--acc); }
.drow small { display: block; color: var(--muted); }
.num { width: 28px; height: 28px; border-radius: 50%; color: #fff; font-weight: 800; font-size: 13px; display: grid; place-items: center; flex: none; }
.ws-foot { padding: 10px; border-top: 1px solid var(--line); display: grid; gap: 8px; padding-bottom: calc(10px + var(--safe-b)); }
@media (max-width: 899px) {
  .ws { flex-direction: column; }
  .ws-diag { flex: none; height: 52vh; min-height: 300px; }
  .ws-side { width: auto; border-left: 0; border-top: 1px solid var(--line); flex: 1; }
}

/* diagram styling */
svg.diagram .s { stroke: var(--conc-s); stroke-width: 1.2px; vector-effect: non-scaling-stroke; fill: var(--conc); }
svg.diagram .hit { cursor: pointer; }
svg.diagram .timber { fill: var(--timber); stroke: var(--timber-s); }
svg.diagram .timber.deck { fill: #f1dcb8; }
svg.diagram .conc.deck { fill: #eef1f4; }
svg.diagram .member { fill: #d2d8de; }
svg.diagram .timber.member { fill: var(--timber); }
svg.diagram .bearing { fill: #333; stroke: #333; }
svg.diagram .joint { fill: #555; stroke: #333; }
svg.diagram .barrier { fill: rgba(150,160,170,.25); stroke: #8a97a5; }
svg.diagram .wsurf { fill: #4b545d; stroke: #333; }
svg.diagram .road { fill: #8b949c; stroke: #666; }
svg.diagram .roadline { fill: none; stroke: #666; stroke-dasharray: 6 5; }
svg.diagram .ground { fill: var(--ground); stroke: #b9a785; }
svg.diagram .water { fill: var(--water); stroke: #6aa5d6; }
svg.diagram .opening { fill: #2e3a46; stroke: #1b2229; }
svg.diagram .opening-plan { fill: #c9d2da; stroke: #8a97a5; stroke-dasharray: 4 3; }
svg.diagram .barrel { fill: #e7eaee; }
svg.diagram .wing { fill: #d6dbe1; }
svg.diagram .apron { fill: #cfd5db; }
svg.diagram .col { fill: #c3cad2; }
svg.diagram .timber.col { fill: #d9b47c; }
svg.diagram .sheeting { fill: #c9a26b; }
svg.diagram .brace { fill: #b8894d; }
svg.diagram .s.sel { stroke: var(--sel); stroke-width: 3.5px; fill: #ffe2c2; }
svg.diagram .s.flash { fill: #ffd29e; }
svg.diagram text { fill: #45505b; font-weight: 700; pointer-events: none; font-family: -apple-system, "Segoe UI", Roboto, sans-serif; }
svg.diagram text.cellno { fill: #fff; }
svg.diagram text.span { fill: #5f6b77; }
svg.diagram .pin { stroke: #fff; stroke-width: 2px; vector-effect: non-scaling-stroke; }
svg.diagram .pin.cs0 { fill: var(--cs0); } svg.diagram .pin.cs1 { fill: var(--cs1); } svg.diagram .pin.cs2 { fill: var(--cs2); }
svg.diagram .pin.cs3 { fill: var(--cs3); } svg.diagram .pin.cs4 { fill: var(--cs4); }
svg.diagram .pin.temp { fill: var(--acc); stroke: #000; stroke-dasharray: 3 2; }
svg.diagram .pin-g { cursor: pointer; }
svg.diagram .pin-g.active .pin { stroke: #000; stroke-width: 3px; }
svg.diagram .pin-t { fill: #fff; font-weight: 800; }
.legend { display: flex; gap: 10px; flex-wrap: wrap; font-size: 12px; color: var(--muted); align-items: center; }
.dot { display: inline-block; width: 11px; height: 11px; border-radius: 50%; vertical-align: -1px; margin-right: 3px; }

/* sheet (modal) */
.sheet-bg { position: fixed; inset: 0; background: rgba(15,20,25,.45); z-index: 50; display: flex; justify-content: flex-end; animation: fade .15s; }
.sheet { background: var(--bg); width: min(560px, 100%); height: 100%; display: flex; flex-direction: column; box-shadow: -8px 0 30px rgba(0,0,0,.2); animation: slide .2s ease-out; }
.sheet .body { flex: 1; overflow: auto; -webkit-overflow-scrolling: touch; padding: 14px; display: flex; flex-direction: column; gap: 14px; }
.sheet .foot { padding: 10px 14px calc(10px + var(--safe-b)); border-top: 1px solid var(--line); display: flex; gap: 8px; background: #fff; }
.sheet .foot .btn { flex: 1; }
.sheet.center { height: auto; max-height: 90%; margin: auto; border-radius: 16px; overflow: hidden; }
.sheet-bg.centered { justify-content: center; align-items: center; padding: 16px; }
@keyframes slide { from { transform: translateX(40px); opacity: .4; } }
@keyframes fade { from { opacity: 0; } }
@media (max-width: 600px) { .sheet { width: 100%; } }

/* photo viewer */
.viewer { position: fixed; inset: 0; background: #000; z-index: 80; display: flex; flex-direction: column; }
.viewer img { flex: 1; min-height: 0; object-fit: contain; width: 100%; }
.viewer .bar { display: flex; gap: 8px; padding: calc(10px + var(--safe-t)) 10px 10px; color: #fff; align-items: center; }
.viewer .bar .grow { font-size: 13px; }

#toast { position: fixed; left: 50%; bottom: calc(24px + var(--safe-b)); transform: translateX(-50%); background: #1b2229; color: #fff; padding: 12px 18px; border-radius: 12px; font-weight: 600; z-index: 100; opacity: 0; pointer-events: none; transition: opacity .2s; max-width: 90%; text-align: center; }
#toast.on { opacity: 1; }

table.lib { width: 100%; border-collapse: collapse; font-size: 14px; }
table.lib td, table.lib th { border-bottom: 1px solid var(--line); padding: 8px 6px; text-align: left; vertical-align: top; }
details.el { background: #fff; border: 1px solid var(--line); border-radius: 12px; }
details.el summary { padding: 14px; font-weight: 700; cursor: pointer; min-height: var(--tap); }
details.el > div { padding: 0 14px 14px; }
.preview { background: #fff; border: 1px solid var(--line); border-radius: 12px; height: 200px; overflow: hidden; }
.preview svg { width: 100%; height: 100%; }
.spanlist { display: flex; flex-wrap: wrap; gap: 6px; }
.spanlist input { width: 76px; border: 1px solid var(--line); border-radius: 10px; padding: 10px 8px; min-height: 44px; text-align: center; background: #fff; }

/* report */
.rp-tools { display: flex; gap: 10px; align-items: center; max-width: 1000px; margin: 0 auto 12px; flex-wrap: wrap; }
.rp { max-width: 1000px; margin: 0 auto; background: #fff; padding: 28px; border-radius: 12px; border: 1px solid var(--line); color: #000; }
.rp h1 { font-size: 22px; margin: 0 0 12px; }
.rp h2 { font-size: 16px; margin: 22px 0 8px; border-bottom: 2px solid var(--hdr); padding-bottom: 4px; }
.rp-meta { width: 100%; border-collapse: collapse; font-size: 13px; }
.rp-meta th { text-align: left; color: var(--muted); font-weight: 600; width: 16%; padding: 4px 6px; }
.rp-meta td { padding: 4px 6px; border-bottom: 1px solid #eee; }
.rp-t { width: 100%; border-collapse: collapse; font-size: 12px; }
.rp-t th { background: #eef1f4; text-align: left; padding: 6px; }
.rp-t td { border-bottom: 1px solid #e3e7eb; padding: 6px; vertical-align: top; }
.rp-t tr { break-inside: avoid; }
.rp-cs { display: inline-block; color: #fff; font-weight: 800; font-size: 11px; padding: 2px 6px; border-radius: 5px; }
.rp-diag { border: 1px solid #ddd; border-radius: 8px; margin: 8px 0; padding: 6px; break-inside: avoid; }
.rp-diag svg { width: 100%; height: auto; max-height: 300px; }
.rp-cap { font-size: 12px; font-weight: 700; color: var(--muted); }
.rp-photos { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.rp-photos figure { margin: 0; break-inside: avoid; }
.rp-photos img { width: 100%; height: 260px; object-fit: contain; background: #f2f2f2; border: 1px solid #ddd; border-radius: 6px; }
.rp-photos figcaption { font-size: 11px; margin-top: 4px; }
@media print {
  @page { size: A4; margin: 12mm; }
  html, body, #app { height: auto; overflow: visible; background: #fff; }
  .no-print, #toast, #sheet-root { display: none !important; }
  .main { overflow: visible; padding: 0; }
  .rp { border: 0; padding: 0; max-width: none; }
  .rp-break { break-before: page; }
  * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}
#types { display: grid; grid-template-columns: repeat(4, 1fr); }
#types button { white-space: normal; line-height: 1.2; }
@media (max-width: 600px) { #types { grid-template-columns: 1fr 1fr; } }
/* sections */
svg.diagram .bgs { opacity: .55; }
svg.diagram .bgs.sel { opacity: 1; }
svg.diagram .void { fill: #fff; stroke: #9aa4ae; stroke-dasharray: 3 2; pointer-events: none; }
svg.diagram .cell-in { fill: #3a4856; stroke: #1b2229; }
svg.diagram .cell-in.focus { fill: #52667a; }
svg.diagram .back { opacity: .7; }
.sec-bar { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.sec-bar select { min-height: 44px; }