/* Students first; the room remains a quiet, editable map. */
body[data-room-theme]{--paper:#f0f2f2;--panel:#fafbf9;--control:#fff;--line:#d5dedf;--seat-bg:#fff;--seat-ink:#183747}
body[data-mode=dark]{--paper:#10212b;--panel:#182e3a;--control:#203a48;--line:#405663;--seat-bg:#203a48;--seat-ink:#f4f7f8}
header{height:64px}.brand{font-size:20px}.app-nav button,.canvas-controls,button,input,select,textarea{font-family:Arial,sans-serif}.app-nav{box-shadow:none;padding:10px 18px}.nav-tabs button{border-radius:8px}.app-nav button{font-size:13px;min-height:40px}.workspace{padding:16px}.room{border:1px solid var(--line);border-radius:14px;box-shadow:0 4px 18px #142f3c0a}.board{top:10px;font-size:10px;padding:7px 20px;border-radius:5px;box-shadow:none}.canvas-controls{border-top:1px solid var(--line);padding:10px;gap:8px}.canvas-controls button{min-height:38px;font-size:12px}.canvas-controls #resetView{font-weight:700;color:var(--ink)}#canvasWrap,.grid{background-color:color-mix(in srgb,var(--room) 18%,#fafbfa)}.grid{background-image:none}.arranging .grid{background-image:radial-gradient(#71868a38 .8px,transparent .8px);background-size:24px 24px}
body[data-mode=dark] #canvasWrap,body[data-mode=dark] .grid{background-color:#102530}.desk{filter:none!important;overflow:visible}.desk-surface,.desk.teacher .desk-surface{background:color-mix(in srgb,var(--desk-bottom) 22%,var(--panel))!important;border:1.5px solid color-mix(in srgb,var(--desk-rim) 45%,var(--panel));box-shadow:none!important;border-radius:12px}.desk-surface:after{display:none}.teacher-label{font:600 15px Arial,sans-serif;color:var(--ink)}
.desk .desk-handle,.room:not(.arranging) .desk-handle,.arranging .desk-handle{background:var(--panel);color:var(--muted)!important;border:1px solid var(--line);font:600 11px Arial,sans-serif;border-radius:5px;box-shadow:none;top:-25px;height:22px}.desk .seat.student-card{box-sizing:border-box;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:10px!important;min-height:0;min-width:0;overflow:hidden;border:1px solid var(--line);border-radius:10px;box-shadow:0 3px 8px #19394b12;background:var(--seat-bg)!important;color:var(--seat-ink)!important;z-index:3;opacity:1;transition:box-shadow .12s,border-color .12s;transform-origin:center;}
.desk .student-card .card-name{font:600 15px/19px Arial,sans-serif!important;letter-spacing:0;color:var(--seat-ink)!important;white-space:normal;overflow-wrap:normal;word-break:normal;flex:none;width:100%}.card-name span{display:block;white-space:nowrap}.card-portrait,.card-initials{display:block;object-fit:cover;border-radius:7px;flex:none;max-width:none;max-height:none}.card-initials{display:grid;place-items:center;background:var(--accent-soft);color:var(--ink);font:600 20px Arial,sans-serif}.desk .student-card.compact-card{flex-direction:row;gap:10px;padding:8px!important;text-align:left}.desk .compact-card .card-name{flex:1;width:auto}.desk .student-card.seat-marker{border-radius:50%;padding:0!important;border:1.5px solid var(--desk-rim);box-shadow:none;z-index:3}.desk .seat-marker strong{font:700 14px Arial,sans-serif!important}.desk .student-card.empty{border-style:dashed;box-shadow:none}.desk .student-card:focus-visible,.desk .student-card.selected,.desk .student-card.over{outline:3px solid var(--selection);outline-offset:2px;box-shadow:0 0 0 6px var(--accent-soft)}
.desk-students{position:absolute;top:calc(100% + 7px);left:0;z-index:9;font:600 11px Arial,sans-serif;min-height:28px;padding:5px 9px;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:6px;white-space:nowrap}.needs-space .desk-students{border-color:#ac843d;background:#fff5da;color:#634715}.needs-space .desk-surface{border-style:dashed}.arranging .student-card{pointer-events:none}.desk .desk-hit{z-index:5}.desk .desk-resize,.desk .desk-duplicate{z-index:10}dialog{width:min(720px,calc(100vw - 32px));max-height:85dvh;overflow:auto;padding:24px;border:1px solid var(--line);border-radius:16px;background:var(--panel);color:var(--ink);box-shadow:0 20px 80px #001b3340}dialog::backdrop{background:#0b203975}.dialog-heading{display:flex;justify-content:space-between;align-items:center;gap:16px}.dialog-heading h2{font:700 21px Arial,sans-serif;text-transform:none;letter-spacing:0;margin:0}#deskStudentsHint{font-size:14px;line-height:1.5;color:var(--muted)}#deskStudentsList{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:20px 0}.focus-student{display:flex;gap:14px;align-items:center;text-align:left;padding:14px;min-height:105px;border-radius:10px}.focus-portrait{width:52px;height:70px;object-fit:cover;border-radius:7px;display:grid;place-items:center;background:var(--accent-soft);font-size:20px;flex:none}.focus-student strong{display:block;font-size:16px;line-height:1.35;overflow-wrap:anywhere}.focus-student small{display:block;font-size:11px;color:var(--muted);margin-bottom:5px}
@media(max-width:1100px){.app-nav{flex-wrap:wrap}.seating-actions{margin-left:auto;border:0;padding:0}.brand{font-size:17px}.workspace{padding:10px}}@media(max-width:600px){.brand{font-size:0}.app-nav button{font-size:11px;padding:7px}.canvas-controls{gap:4px;padding:6px}.canvas-controls button{font-size:10px;padding:6px}#deskStudentsList{grid-template-columns:1fr}}
@media print{#printSheet{height:auto!important}.print-roster-page{break-before:page;padding:12mm;font-family:Arial,sans-serif;color:#183747}.print-roster-page h2{font-size:20px}.print-roster-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.print-roster-grid .focus-student{border:1px solid #cad4d9;break-inside:avoid}.print-roster-page .focus-portrait{width:48px;height:64px}.print-roster-page small{font-size:11px}#printSheet>svg{height:192mm!important}}

.seat-connector{position:absolute;height:1px;background:var(--desk-rim);transform-origin:left center;pointer-events:none;z-index:2}.seat-connector:before{content:'';position:absolute;left:-2px;top:-2px;width:5px;height:5px;background:var(--desk-rim);border-radius:50%}
.room-watermark{position:absolute;inset:0;z-index:0;pointer-events:none;user-select:none;display:flex;align-items:center;justify-content:center;padding:8%;text-align:center;font:800 76px/1.15 Arial,sans-serif;letter-spacing:.02em;color:var(--ink);opacity:.065;overflow-wrap:anywhere}.grid>.desk{z-index:1}body[data-mode=dark] .room-watermark{color:#fff;opacity:.08}