.seat-arrangement-card{background:#fff;border-radius:20px;width:100%;padding:2rem;transition:all .3s;box-shadow:0 10px 25px #0000001a}.seat-settings{background:#f8f9fa;border-radius:15px;justify-content:center;align-items:center;gap:15px;margin-bottom:2rem;padding:1rem;transition:all .3s;display:flex}.seat-settings.collapsed{opacity:.7;margin-bottom:1rem;padding:.5rem}.input-group{flex-direction:column;align-items:center;display:flex}.input-group label{color:#636e72;margin-bottom:5px;font-size:.8rem}.input-group input{text-align:center;border:1px solid #dfe6e9;border-radius:8px;width:60px;padding:8px;font-size:1.1rem;font-weight:700}.x-mark{color:#b2bec3;margin-top:15px;font-size:1.2rem}.total-seats-badge{color:#fff;background:#a29bfe;border-radius:12px;margin-top:15px;margin-left:10px;padding:5px 10px;font-size:.9rem;font-weight:700}.name-input-section{flex-direction:column;align-items:center;gap:1rem;display:flex}.name-input-section label{color:#2d3436;font-weight:600}.people-count-input-wrapper{background:#f1f3f5;border-radius:15px;align-items:center;gap:10px;padding:10px 20px;display:flex}.people-count-input{text-align:center;color:#2d3436;border:2px solid #6c5ce7;border-radius:10px;outline:none;width:80px;padding:10px;font-size:1.5rem;font-weight:700}.unit-text{color:#636e72;font-size:1.2rem;font-weight:700}.team-preview-box{background:#fff;border:2px solid #e3e0ff;border-radius:12px;flex-direction:column;align-items:center;min-width:120px;padding:15px;animation:.3s fadeIn;display:flex}.preview-label{color:#6c5ce7;text-transform:uppercase;margin-bottom:8px;font-size:.75rem;font-weight:700}.mini-grid{justify-content:center;gap:4px;display:grid}.mini-dot{background:#a29bfe;border:1px solid #6c5ce7;border-radius:2px;width:14px;height:10px}.mini-grid.size-3:not(.horizontal):not(.vertical){grid-template-columns:repeat(2,14px)}.mini-grid.size-3:not(.horizontal):not(.vertical)>:nth-child(3){grid-column:1/3;justify-self:center}.mini-grid.size-4,.mini-grid.size-5:not(.horizontal):not(.vertical){grid-template-columns:repeat(2,14px)}.mini-grid.size-5:not(.horizontal):not(.vertical)>:nth-child(5){grid-column:1/3;justify-self:center}.mini-grid.size-6{grid-template-columns:repeat(2,14px)}.mini-grid.horizontal{grid-template-columns:repeat(auto-fill,14px)!important}.mini-grid.horizontal.size-3{grid-template-columns:repeat(3,14px)!important}.mini-grid.horizontal.size-4{grid-template-columns:repeat(4,14px)!important}.mini-grid.horizontal.size-5{grid-template-columns:repeat(5,14px)!important}.mini-grid.horizontal.size-6{grid-template-columns:repeat(6,14px)!important}.mini-grid.horizontal>:nth-child(5){grid-column:auto!important;justify-self:auto!important}.mini-grid.vertical{grid-template-columns:14px!important}.mini-grid.vertical>:nth-child(5){grid-column:auto!important;justify-self:auto!important}.layout-selector{align-items:center;gap:8px;display:flex}.layout-btn{color:#2f3542;cursor:pointer;background:#f1f2f6;border:2px solid #ced6e0;border-radius:12px;align-items:center;gap:5px;padding:10px 18px;font-size:.85rem;font-weight:800;transition:all .2s;display:flex;box-shadow:0 4px 6px #00000012}.layout-btn.active{color:#fff;background:#6c5ce7;border-color:#6c5ce7;box-shadow:0 6px 12px #6c5ce74d}.layout-btn:hover:not(.active){background:#fff;border-color:#6c5ce7;transform:translateY(-2px);box-shadow:0 8px 15px #0000001a}.preview-desc{color:#b2bec3;margin-top:5px;font-size:.7rem}.mode-toggle-wrapper{align-items:center;gap:10px;margin-bottom:5px;display:flex}.mode-text{color:#2d3436;font-size:.9rem;font-weight:600}.switch-label{width:40px;height:24px;display:inline-block;position:relative}.switch-label input{opacity:0;width:0;height:0}.slider{cursor:pointer;background-color:#ccc;border-radius:24px;transition:all .4s;position:absolute;inset:0}.slider:before{content:"";background-color:#fff;border-radius:50%;width:18px;height:18px;transition:all .4s;position:absolute;bottom:3px;left:3px}input:checked+.slider{background-color:#6c5ce7}input:checked+.slider:before{transform:translate(16px)}.hint-text{color:#b2bec3;margin-bottom:10px;font-size:.9rem}.drag-hint{color:#fdcb6e;margin-bottom:10px;font-size:1.1rem;font-weight:700}.shuffle-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#6c5ce7,#a29bfe);border:none;border-radius:12px;width:100%;max-width:400px;padding:1rem;font-size:1.1rem;font-weight:700;transition:transform .2s;box-shadow:0 4px 10px #6c5ce74d}.shuffle-btn:hover{transform:translateY(-2px);box-shadow:0 6px 15px #6c5ce766}.seat-result-section{flex-direction:column;align-items:center;gap:1.5rem;width:100%;animation:.5s fadeIn;display:flex}.blackboard{color:#fff;text-align:center;background:#00b894;border:4px solid #574b90;border-radius:8px;width:80%;margin-bottom:10px;padding:10px;font-weight:700;box-shadow:0 4px #3e366e}.seat-grid{gap:10px;width:100%;display:grid}.seat-item{aspect-ratio:4/3;cursor:grab;-webkit-user-select:none;user-select:none;background:#fff;border:1px solid #dfe6e9;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;transition:all .3s;display:flex;position:relative;box-shadow:0 2px 5px #0000000d}.seat-item.drag-over-target{z-index:5;transform:scale(1.05);background-color:#e3e0ff!important;border:3px dashed #6c5ce7!important}.seat-item:active{cursor:grabbing;z-index:10;transform:scale(1.05);box-shadow:0 10px 20px #00000026}.seat-item.occupied{background:#fdfbf7;border-color:#fab1a0}.seat-item.occupied.boy{background:#e8f4fd;border-color:#90caf9}.seat-item.occupied.boy .student-number{border-color:#90caf9}.seat-item.occupied.girl{background:#ffebee;border-color:#ef9a9a}.seat-item.occupied.girl .student-number{border-color:#ef9a9a}.seat-item.fixed{background:#f3f0ff;border:2px solid #6c5ce7;box-shadow:0 0 15px #6c5ce733}.seat-item.fixed.boy{background:#e8f4fd}.seat-item.fixed.girl{background:#ffebee}.seat-item.fixed .student-number{color:#fff;background:#6c5ce7;border-color:#6c5ce7}.seat-item.empty{opacity:.9;background:#f1f3f5;border:2px dashed #dfe6e9}.desk-wood{opacity:.2;background:#e1b12c;border-radius:4px;width:80%;height:30%;position:absolute;top:5px;left:10%}.student-number{font-size:calc(2rem*var(--seat-scale,1));color:#2d3436;z-index:1;width:calc(60px*var(--seat-scale,1));height:calc(60px*var(--seat-scale,1));border:calc(3px*var(--seat-scale,1))solid #fab1a0;background:#fff;border-radius:50%;justify-content:center;align-items:center;font-weight:800;transition:all .3s cubic-bezier(.175,.885,.32,1.275);display:flex;box-shadow:0 4px 10px #0000001a}.lock-icon{color:#fff;z-index:2;background:#6c5ce7;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;font-size:.8rem;animation:.3s cubic-bezier(.175,.885,.32,1.275) popIn;display:flex;position:absolute;top:-8px;right:-8px;box-shadow:0 2px 5px #0003}@keyframes popIn{0%{transform:scale(0)}to{transform:scale(1)}}.empty-seat-mark{color:#ccc;z-index:1;font-size:.8rem}.mode-tabs{background:#f1f2f6;border-radius:14px;gap:5px;margin-bottom:25px;padding:6px;display:inline-flex;box-shadow:inset 0 2px 4px #0000000d}.mode-tab{color:#57606f;cursor:pointer;background:#f1f2f6;border:2px solid #dfe4ea;border-radius:12px;align-items:center;gap:8px;padding:12px 28px;font-size:.95rem;font-weight:800;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;box-shadow:0 4px 6px #0000000d}.mode-tab:hover:not(.active){color:#6c5ce7;background:#fff;border-color:#6c5ce7;transform:translateY(-3px);box-shadow:0 8px 20px #0000001f}.result-actions{gap:10px;margin-top:20px;display:flex}.retry-btn,.reset-btn{cursor:pointer;border:none;border-radius:20px;padding:10px 20px;font-weight:600;transition:background .2s}.retry-btn{color:#fff;background:#6c5ce7}.reset-btn{color:#636e72;background:#dfe6e9}.retry-btn:hover{background:#5649c0}.reset-btn:hover{color:#fff;background:#b2bec3}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.mode-tabs{justify-content:center;gap:10px;margin-bottom:20px;display:flex}.mode-tab{color:#636e72;cursor:pointer;background:#f1f3f5;border:none;border-radius:20px;padding:10px 20px;font-weight:700;transition:all .2s}.mode-tab.active{color:#fff;background:#6c5ce7;box-shadow:0 4px 10px #6c5ce74d}.team-canvas{background:#fdfdfd;border:2px dashed #dfe6e9;border-radius:12px;width:100%;height:1000px;position:relative;overflow:hidden}.team-canvas.fullscreen{z-index:9999;border:none;border-radius:0;position:fixed;top:0;left:0;box-shadow:inset 0 0 50px #0000001a;width:100vw!important;height:100vh!important}.canvas-toolbar{z-index:100;gap:10px;display:flex;position:absolute;top:15px;right:15px}.canvas-tool-btn{color:#2d3436;cursor:pointer;background:#fff;border:2px solid #dfe6e9;border-radius:20px;padding:8px 15px;font-weight:700;transition:all .2s;box-shadow:0 4px 6px #0000000d}.canvas-tool-btn:hover{color:#fff;background:#6c5ce7;border-color:#6c5ce7}.team-unit-container{z-index:1;background:#fff;border:1px solid #dfe6e9;border-radius:12px;padding:10px;transition:box-shadow .2s;position:absolute;box-shadow:0 5px 15px #0000000d}.team-unit-container:hover{z-index:5;box-shadow:0 8px 20px #0000001a}.team-unit-container.is-target{z-index:20}.team-unit-container.is-active{z-index:30}.team-header-drag{text-align:center;color:#6c5ce7;cursor:grab;-webkit-user-select:none;user-select:none;background:#e3e0ff;border-radius:6px;margin-bottom:10px;padding:5px;font-weight:700}.team-header-drag:active{cursor:grabbing}.team-grid{justify-content:center;gap:10px;display:grid}.team-grid.size-3:not(.horizontal):not(.vertical){grid-template-columns:repeat(2,calc(120px*var(--seat-scale,1)));gap:calc(10px*var(--seat-scale,1))}.team-grid.size-3:not(.horizontal):not(.vertical)>:nth-child(3){width:calc(120px*var(--seat-scale,1));grid-column:1/3;justify-self:center}.team-grid.size-4,.team-grid.size-5:not(.horizontal):not(.vertical){grid-template-columns:repeat(2,calc(120px*var(--seat-scale,1)));gap:calc(10px*var(--seat-scale,1))}.team-grid.size-5:not(.horizontal):not(.vertical)>:nth-child(5){width:calc(120px*var(--seat-scale,1));grid-column:1/3;justify-self:center}.team-grid.size-6{grid-template-columns:repeat(2,calc(120px*var(--seat-scale,1)));gap:calc(10px*var(--seat-scale,1))}.team-grid.horizontal{grid-template-columns:repeat(auto-fill,calc(120px*var(--seat-scale,1)))!important}.team-grid.horizontal.size-3{grid-template-columns:repeat(3,calc(120px*var(--seat-scale,1)))!important}.team-grid.horizontal.size-4{grid-template-columns:repeat(4,calc(120px*var(--seat-scale,1)))!important}.team-grid.horizontal.size-5{grid-template-columns:repeat(5,calc(120px*var(--seat-scale,1)))!important}.team-grid.horizontal.size-6{grid-template-columns:repeat(6,calc(120px*var(--seat-scale,1)))!important}.team-grid.horizontal>:nth-child(5){grid-column:auto!important;justify-self:auto!important;width:auto!important}.team-grid.vertical{grid-template-columns:calc(120px*var(--seat-scale,1))!important}.team-grid.vertical>:nth-child(5){grid-column:auto!important;justify-self:auto!important;width:auto!important}.seat-setup-card{background:#fff;border-radius:20px;width:100%;max-width:860px;padding:2rem;transition:all .3s;box-shadow:0 10px 25px #0000001a}.seat-mode-panel{width:100%}.seat-loading-panel{color:#636e72;justify-content:center;align-items:center;min-height:260px;font-weight:800;display:flex}.seat-settings.team-settings{flex-direction:column;gap:20px}.layout-selector{flex-wrap:wrap;justify-content:center}.drag-hint{color:#8a6d1f;text-align:center;font-size:.98rem}.lock-icon{width:auto;min-width:34px;padding:0 6px;font-size:.7rem;font-weight:800}.team-size-selector{flex-wrap:wrap;justify-content:center;gap:10px;display:flex}.team-size-btn{color:#636e72;cursor:pointer;background:#fff;border:2px solid #dfe6e9;border-radius:8px;padding:8px 15px;font-weight:800;transition:all .2s}.team-size-btn.active{color:#fff;background:#6c5ce7;border-color:#6c5ce7}.team-input-row{flex-wrap:wrap;justify-content:center;align-items:center;gap:20px;display:flex}.restrictions-section{width:100%;max-width:620px;margin:20px auto 0}.restrictions-header{cursor:pointer;color:#2d3436;background:#f1f3f5;border:0;border-radius:12px;justify-content:center;align-items:center;width:100%;padding:12px;font-weight:800;transition:all .2s;display:flex}.restrictions-header:hover{background:#e9ecef}.restrictions-content{background:#fff;border:2px solid #e3e0ff;border-radius:12px;margin-top:15px;padding:15px;animation:.3s fadeIn}.restriction-help,.selected-restriction{color:#636e72;text-align:center;margin-bottom:12px;font-size:.88rem}.selected-restriction{color:#d35400;font-weight:800}.number-grid{grid-template-columns:repeat(auto-fill,minmax(40px,1fr));gap:8px;max-height:220px;margin-bottom:15px;padding:5px;display:grid;overflow-y:auto}.number-chip{color:#2d3436;cursor:pointer;background:#fff;border:1px solid #dfe6e9;border-radius:8px;padding:10px 5px;font-weight:800;transition:all .2s}.number-chip.restricted{color:#d63031;background:#fff8f2;border-color:#fab1a0}.number-chip.selected{color:#7b241c;background:#fab1a0;border-color:#e17055;box-shadow:0 0 8px #e1705559}.restriction-list{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.restriction-pill{color:#d63031;background:#fff8f2;border:1px solid #fab1a0;border-radius:20px;align-items:center;gap:8px;padding:6px 10px;font-size:.9rem;font-weight:800;display:flex}.restriction-pill button{color:#fff;cursor:pointer;background:#d63031;border:0;border-radius:50%;justify-content:center;align-items:center;width:20px;height:20px;padding:0;font-size:1rem;font-weight:900;line-height:18px;display:inline-flex}.restriction-pill button:hover{background:#a82323}.seat-result-page{box-sizing:border-box;background:#f6f8fb;width:100%;min-height:100vh;padding:72px 28px 40px}.seat-back-btn{z-index:1000;color:#2d3436;cursor:pointer;background:#fff;border:2px solid #dfe6e9;border-radius:10px;padding:10px 16px;font-weight:800;position:fixed;top:20px;left:20px;box-shadow:0 8px 18px #00000014}.seat-back-btn:hover{color:#6c5ce7;border-color:#6c5ce7}.seat-error-card{text-align:center;background:#fff;border-radius:16px;max-width:520px;margin:80px auto;padding:32px;box-shadow:0 10px 24px #00000014}.seat-result-layout{flex-direction:column;align-items:center;gap:18px;width:min(1400px,100%);margin:0 auto;display:flex}.seat-result-header{box-sizing:border-box;background:#fff;border-radius:14px;justify-content:space-between;align-items:center;gap:16px;width:100%;padding:18px 22px;display:flex;box-shadow:0 8px 20px #0000000f}.seat-result-header h1{color:#2d3436;margin:0;font-size:1.45rem}.seat-result-kicker{color:#6c5ce7;margin:0 0 4px;font-size:.82rem;font-weight:800}.result-grid{justify-content:center;margin:0 auto}.sectioned-seat-grid{flex-direction:column;align-items:center;gap:10px;width:100%;display:flex}.sectioned-seat-row{justify-content:center;gap:30px;width:100%;display:flex}.seat-column-group{grid-template-columns:repeat(var(--group-size),minmax(82px,118px));gap:10px;display:grid}.seat-column-group .seat-item{width:100%;min-width:0}.team-result-layout .team-canvas{background:#fff;min-height:1000px}@media (max-width:720px){.seat-page-container{padding:1rem!important}.seat-setup-card{padding:1rem}.mode-tabs,.seat-settings,.result-actions,.seat-result-header{flex-direction:column}.mode-tab,.layout-btn,.shuffle-btn{justify-content:center;width:100%}.seat-result-page{padding:70px 12px 28px}.seat-back-btn{top:12px;left:12px}.sectioned-seat-row{gap:14px}.seat-column-group{grid-template-columns:repeat(var(--group-size),minmax(48px,1fr));gap:6px}}.advanced-settings-btn{color:#2d3436;cursor:pointer;background:#fff;border:2px solid #dfe6e9;border-radius:12px;align-items:center;gap:8px;padding:12px 20px;font-size:.95rem;font-weight:800;transition:all .3s cubic-bezier(.4,0,.2,1);display:inline-flex;box-shadow:0 4px 6px #0000000d}.advanced-settings-btn:hover{color:#6c5ce7;background:#f8f9fa;border-color:#6c5ce7;transform:translateY(-2px);box-shadow:0 8px 15px #6c5ce726}.advanced-settings-btn:active{transform:translateY(0);box-shadow:0 4px 6px #0000000d}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-8px)}75%{transform:translate(8px)}}.shake{animation:.3s ease-in-out shake}