/* House Studio design system: one set of colours, type and controls for every page.
   Quiet neutrals, a single brand green, thin borders and clear hierarchy, sized for phones first. */
:root{
  --font:'Plex Thai','Sukhumvit Set','Noto Sans Thai','Leelawadee UI',system-ui,-apple-system,'Segoe UI',sans-serif;
  --bg:#f5f6f5;--surface:#fff;--surface-2:#f8f9f8;--surface-3:#f1f3f2;
  --line:#e3e7e5;--line-strong:#cfd6d3;
  --text:#14201b;--text-2:#3f4b46;--muted:#6a7570;--faint:#98a19d;
  --brand:#1f5a47;--brand-hover:#174837;--brand-50:#eef5f2;--brand-100:#d6e8e0;--brand-200:#b4d4c6;
  --ok:#1d7a4d;--ok-bg:#e8f5ee;--warn:#8a5a00;--warn-bg:#fdf4e3;--warn-line:#f1dbb0;--danger:#b42318;--danger-bg:#fdecea;--danger-line:#f5c7c2;
  --line-green:#06c755;
  --r-sm:6px;--r:8px;--r-md:10px;--r-lg:12px;--r-xl:16px;
  --shadow-sm:0 1px 2px rgba(16,24,20,.05);--shadow:0 1px 3px rgba(16,24,20,.08),0 1px 2px rgba(16,24,20,.04);--shadow-lg:0 12px 32px -6px rgba(16,24,20,.18),0 4px 8px -4px rgba(16,24,20,.06);
  /* names used by older rules */
  --green:var(--brand);--green-2:#3c6b57;--card:var(--surface);--accent:#b4622d;--red:var(--danger);--cream:var(--surface-2);
  font-family:var(--font);color:var(--text);-webkit-text-size-adjust:100%;font-feature-settings:'tnum' 0;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}button:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed}
h1,h2,h3,h4,p{margin:0}
h1{font-size:20px;line-height:1.35;font-weight:600;letter-spacing:-.01em}
h2{font-size:16px;line-height:1.4;font-weight:600}
h3{font-size:14px;line-height:1.4;font-weight:600}
small{font-size:12px;color:var(--muted)}
a{color:var(--brand)}
.num,.amount,.tier-price,.result-price{font-variant-numeric:tabular-nums}
.i{display:inline-block;vertical-align:middle;flex:none}

/* Inputs */
input,select,textarea{width:100%;border:1px solid var(--line-strong);background:var(--surface);border-radius:var(--r);padding:9px 12px;min-height:42px;font-size:16px;line-height:1.4;transition:border-color .15s,box-shadow .15s}
textarea{min-height:84px;resize:vertical}
input:hover,select:hover,textarea:hover{border-color:#b9c2be}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,90,71,.14)}
button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
input[type=checkbox],input[type=radio]{width:18px;height:18px;min-height:0;accent-color:var(--brand)}
input[type=range]{accent-color:var(--brand);min-height:0;border:0;padding:0;box-shadow:none}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236a7570' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:34px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line-strong);background:var(--surface);color:var(--text);border-radius:var(--r);min-height:42px;padding:8px 14px;font-weight:500;font-size:14px;line-height:1.2;text-decoration:none;white-space:nowrap;box-shadow:var(--shadow-sm);transition:background .15s,border-color .15s,box-shadow .15s}
.btn:hover{background:var(--surface-2);border-color:#b9c2be}
.btn .i{color:var(--muted)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn.primary .i{color:#fff}.btn.primary:hover{background:var(--brand-hover);border-color:var(--brand-hover)}
.btn.ghost{border-color:transparent;background:transparent;box-shadow:none;color:var(--text-2)}.btn.ghost:hover{background:var(--surface-3)}
.btn.danger{color:var(--danger);border-color:var(--danger-line)}.btn.danger .i{color:var(--danger)}.btn.danger:hover{background:var(--danger-bg)}
.btn.small{min-height:34px;padding:5px 11px;font-size:13px;border-radius:var(--r)}
.btn.wide{width:100%}
.btn.icon-only{min-width:38px;padding:0}

/* Chips: pick one of a few */
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line-strong);background:var(--surface);border-radius:var(--r);padding:6px 12px;min-height:36px;font-size:13px;color:var(--text-2);transition:background .15s,border-color .15s}
.chip:hover{border-color:#b9c2be;background:var(--surface-2)}
.chip.on,.chip.active{background:var(--brand-50);border-color:var(--brand);color:var(--brand);font-weight:500;box-shadow:inset 0 0 0 1px var(--brand)}

/* Cards and notes */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:16px;box-shadow:var(--shadow-sm)}
.note{padding:10px 12px;border-radius:var(--r);background:var(--surface-3);color:var(--text-2);font-size:13px;line-height:1.6}
.note.warn,.note.warning{background:var(--warn-bg);color:var(--warn)}
.note.success{background:var(--ok-bg);color:var(--ok)}
.note.error{background:var(--danger-bg);color:var(--danger)}
.note ul{margin:4px 0 0;padding-left:18px}
.badge{display:inline-flex;align-items:center;gap:4px;font-style:normal;font-size:11px;font-weight:500;color:var(--warn);background:var(--warn-bg);border-radius:999px;padding:2px 8px;margin-left:6px;white-space:nowrap;vertical-align:middle}
.badge.ok{background:var(--ok-bg);color:var(--ok)}.badge.sent{background:var(--surface-3);color:var(--text-2)}

/* Toast, dialogs, busy */
#toast{position:fixed;left:50%;bottom:92px;transform:translateX(-50%) translateY(16px);background:#18231e;color:#fff;padding:10px 16px;border-radius:var(--r-md);font-size:14px;opacity:0;pointer-events:none;transition:.2s;z-index:60;max-width:min(92vw,520px);box-shadow:var(--shadow-lg)}
#toast.visible{opacity:1;transform:translateX(-50%)}
dialog{border:0;border-radius:var(--r-xl);padding:22px;max-width:min(92vw,480px);box-shadow:var(--shadow-lg);color:var(--text)}
dialog::backdrop{background:rgba(14,22,18,.45);backdrop-filter:blur(2px)}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}
.loading{padding:30vh 24px;text-align:center;font-weight:600;font-size:15px;letter-spacing:.18em;color:var(--brand)}
.loading span{display:block;font-size:14px;font-weight:400;letter-spacing:0;line-height:1.7;max-width:420px;margin:10px auto 0;color:var(--muted)}
.spinner{flex:none;width:22px;height:22px;border-radius:50%;border:2.5px solid var(--brand-100);border-top-color:var(--brand);animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* AR / tour dialog shared by every page */
.ar-dialog{width:min(760px,96vw);max-width:96vw;padding:0;border:0;border-radius:var(--r-xl);overflow:hidden;background:var(--surface)}
.ar-dialog::backdrop{background:rgba(14,22,18,.6)}
.ar-head{display:flex;justify-content:space-between;align-items:center;padding:12px 12px 12px 18px;border-bottom:1px solid var(--line)}
.ar-head strong{font-size:15px;font-weight:600}
.ar-close{border:0;background:transparent;color:var(--text-2);width:36px;height:36px;border-radius:var(--r);display:grid;place-items:center;cursor:pointer}.ar-close:hover{background:var(--surface-3)}
.ar-dialog model-viewer{width:100%;height:min(66vh,540px);background:linear-gradient(#f4f6f5,#e9eeeb)}
.ar-go{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);display:inline-flex;align-items:center;gap:8px;border:0;border-radius:999px;background:var(--brand);color:#fff;font-size:15px;font-weight:500;padding:12px 20px;box-shadow:var(--shadow-lg)}
.ar-note{margin:0;padding:12px 18px 16px;font-size:12px;color:var(--muted);line-height:1.6}
.tour-dialog .pano-canvas{display:block;width:100%;height:min(62vh,540px);touch-action:none;cursor:grab;background:#ddd}
.tour-rooms{display:flex;flex-wrap:wrap;gap:6px;padding:12px 18px 0}

/* Material picker */
.slot-list{display:flex;flex-direction:column;gap:8px;margin:10px 0 12px}.slot-row{display:flex;align-items:center;gap:10px;width:100%;text-align:left;font:inherit;color:inherit;background:transparent;border:0;padding:0}button.slot-row{cursor:pointer;padding:6px;margin:-6px;border-radius:var(--r)}button.slot-row:hover{background:var(--surface-2)}.slot-row>.i:last-child{margin-left:auto;color:var(--faint)}.slot-row .mat-swatch{width:40px;height:30px;aspect-ratio:auto}.slot-row small{display:block}.slot-row strong{display:block;font-size:13px;font-weight:500}
.furn-thumb{display:grid;place-items:center;width:100%;aspect-ratio:4/3;border-radius:var(--r);background:var(--surface-3);color:var(--text-2);flex:none}.furn-thumb.small{width:44px;height:44px;aspect-ratio:auto}.furn-card .mat-rate+.mat-rate{color:var(--text-2)}
.mat-dialog{width:min(980px,96vw);max-width:96vw;max-height:92vh;padding:0;border:0;border-radius:var(--r-xl);overflow:hidden;display:flex;flex-direction:column}
.mat-dialog[open]{display:flex}
.mat-head{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:14px 14px 10px 20px;border-bottom:1px solid var(--line)}
.mat-head strong{display:block;font-size:16px;font-weight:600}.mat-head small{display:block}
.mat-tabs{display:flex;gap:4px;padding:10px 20px 0;border-bottom:1px solid var(--line)}
.mat-tabs button{border:0;background:transparent;padding:8px 12px;font-size:14px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}
.mat-tabs button.on{color:var(--brand);border-bottom-color:var(--brand);font-weight:500}
.mat-current{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;padding:12px 20px;background:var(--surface-2);border-bottom:1px solid var(--line)}.mat-current>div{flex:1;min-width:140px}
.mat-current small{display:block}.mat-current strong{display:block;font-weight:500}.mat-current .mat-swatch{width:44px;height:44px}
.mat-qty{margin-left:auto;font-size:13px;color:var(--muted);white-space:nowrap}
.mat-tools{padding:12px 20px 4px;display:flex;flex-direction:column;gap:10px}
.mat-search{position:relative;display:block}.mat-search .i{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none}.mat-search input{display:block;width:100%;min-height:42px;padding:8px 12px 8px 36px;border:1px solid var(--line-strong,var(--line));border-radius:var(--r);background:var(--surface);color:var(--text);font:inherit;font-size:15px;-webkit-appearance:none;appearance:none}.mat-search input:focus{outline:2px solid var(--brand-200);border-color:var(--brand)}
.mat-tools .chips{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}.mat-tools .chip{flex:none}
.mat-grid{flex:1;overflow-y:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;padding:10px 20px 16px;align-content:start}
.mat-card{display:flex;flex-direction:column;align-items:flex-start;gap:3px;text-align:left;border:1px solid var(--line);background:var(--surface);border-radius:var(--r-md);padding:8px;font:inherit;color:inherit;cursor:pointer;transition:border-color .15s,box-shadow .15s}
.mat-card:hover{border-color:var(--brand-200);box-shadow:var(--shadow)}
.mat-card.on{border-color:var(--brand);box-shadow:0 0 0 2px rgba(31,90,71,.18)}
.mat-swatch{display:block;width:100%;aspect-ratio:4/3;border-radius:var(--r);border:1px solid rgba(0,0,0,.08);flex:none}
.mat-name{font-size:13px;line-height:1.35;font-weight:500}
.mat-rate{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.mat-diff{font-size:12px;font-weight:500;font-variant-numeric:tabular-nums;color:var(--text-2)}.mat-diff.up{color:var(--warn)}.mat-diff.down{color:var(--ok)}.mat-diff.on{color:var(--brand);display:inline-flex;align-items:center;gap:3px}
.mat-foot{display:flex;align-items:center;gap:12px;padding:12px 20px;border-top:1px solid var(--line);background:var(--surface)}
.mat-foot small{flex:1}.mat-scope{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:500;white-space:nowrap}
@media(max-width:640px){.mat-dialog{width:100vw;max-width:100vw;max-height:94vh;margin:auto 0 0;border-radius:var(--r-xl) var(--r-xl) 0 0}.mat-grid{grid-template-columns:repeat(2,1fr);padding:10px 14px 14px}.mat-head,.mat-current,.mat-tools,.mat-foot{padding-left:14px;padding-right:14px}.mat-foot small{display:none}}