:root{--color-bg: #f5f6f8;--color-surface: #ffffff;--color-surface-alt: #f0f2f5;--color-input: #e8ecf2;--color-border: #d0d5dd;--color-border-alt: #e2e5ea;--color-border-input: #c0c8d8;--color-text: #1a1a2e;--color-text-secondary: #606878;--color-text-dim: #888888;--color-text-muted: #505060;--color-text-disabled: #c0c0c0;--color-accent: #0077cc;--color-accent-hover: #005fa3;--color-accent-on: #ffffff;--color-link: #0066bb;--color-converged: #008844;--color-energy: #cc8800;--color-error: #cc2222;--color-btn-disabled: #cccccc;--color-drag-bg: #d0e0f0;--color-occupied: #2266cc;--color-virtual: #aaaaaa;--color-alpha: #2266cc;--color-beta: #cc3344;--color-gap: #dd6600;--color-axis: #bbbbbb;--color-leader: #cccccc;--color-label: #777777;--color-hint: #999999;--color-grid: #d8dce4;--color-title-svg: #666666;--color-table-border: #d0d5dd44;--color-morbvis: #cc8800;--color-morbvis-border: #ccaa44;--color-morbvis-hover: #fff8e0;--color-backend-text: #8890a0;--color-backend-hover-text: #3a3a4a;--color-backend-hover-bg: #d0d8e4;--color-backend-unsup-bg: #f0f0f4;--color-backend-unsup-border: #e0e0e8;--color-backend-unsup-text: #c0c0c0;--color-progress-bg: #e0e4ea;--color-header-grad-start: #0077cc;--color-header-grad-end: #8844ee}:root[data-theme=dark]{--color-bg: #1a1a2e;--color-surface: #16213e;--color-surface-alt: #0d1117;--color-input: #0f3460;--color-border: #0f3460;--color-border-alt: #21262d;--color-border-input: #1a4080;--color-text: #e0e0e0;--color-text-secondary: #a0a0a0;--color-text-dim: #888888;--color-text-muted: #c0c0c0;--color-text-disabled: #3a3a4a;--color-accent: #00d4ff;--color-accent-hover: #00b8d4;--color-accent-on: #1a1a2e;--color-link: #6c8cff;--color-converged: #00ff88;--color-energy: #ffcc00;--color-error: #ff4444;--color-btn-disabled: #555555;--color-drag-bg: #1a4080;--color-occupied: #4488ff;--color-virtual: #666666;--color-alpha: #4488ff;--color-beta: #ff5566;--color-gap: #ff8800;--color-axis: #555555;--color-leader: #444444;--color-label: #aaaaaa;--color-hint: #666666;--color-grid: #1a4080;--color-title-svg: #aaaaaa;--color-table-border: #0f346033;--color-morbvis: #ffcc00;--color-morbvis-border: #665200;--color-morbvis-hover: #33290a;--color-backend-text: #606878;--color-backend-hover-text: #c0c8d8;--color-backend-hover-bg: #1a4080;--color-backend-unsup-bg: #1a1a2e;--color-backend-unsup-border: #2a2a3a;--color-backend-unsup-text: #3a3a4a;--color-progress-bg: #21262d;--color-header-grad-start: #00d4ff;--color-header-grad-end: #a070ff}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,system-ui,sans-serif;background:var(--color-bg);color:var(--color-text);min-height:100vh}#app{max-width:900px;margin:0 auto;padding:20px}h1{font-size:1.5rem;color:var(--color-accent);margin-bottom:20px}.controls{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:20px}.panel{background:var(--color-surface);border-radius:8px;padding:16px;border:1px solid var(--color-border)}.panel h2{font-size:.9rem;color:var(--color-accent);margin-bottom:12px;text-transform:uppercase;letter-spacing:.05em}label{display:block;font-size:.85rem;margin-bottom:4px;color:var(--color-text-secondary)}label.checkbox-label{margin-top:8px;cursor:pointer}label.checkbox-label input{margin-right:6px;vertical-align:middle}select,textarea{width:100%;padding:8px;margin-bottom:12px;background:var(--color-input);border:1px solid var(--color-border-input);border-radius:4px;color:var(--color-text);font-family:Consolas,Monaco,monospace;font-size:.85rem}textarea{height:180px;resize:vertical}select:focus,textarea:focus{outline:none;border-color:var(--color-accent)}button#run-btn{display:block;width:100%;padding:12px;margin-bottom:20px;background:var(--color-accent);color:var(--color-accent-on);border:none;border-radius:6px;font-size:1rem;font-weight:700;cursor:pointer;transition:background .2s}button#run-btn:hover{background:var(--color-accent-hover)}button#run-btn:disabled{background:var(--color-btn-disabled);cursor:not-allowed}.output-panel{background:var(--color-surface-alt);border-radius:8px;padding:16px;border:1px solid var(--color-border-alt);font-family:Consolas,Monaco,monospace;font-size:.82rem;line-height:1.6;max-height:500px;overflow-y:auto;white-space:pre-wrap}.output-panel .progress{color:var(--color-text-dim)}.output-panel .iteration{color:var(--color-text-muted)}.output-panel .converged{color:var(--color-converged);font-weight:700}.output-panel .energy{color:var(--color-energy);font-weight:700}.output-panel .error{color:var(--color-error)}progress#eri-progress{display:block;width:100%;height:6px;margin-bottom:8px;appearance:none;border:none;border-radius:3px;overflow:hidden}progress#eri-progress::-webkit-progress-bar{background:var(--color-progress-bg);border-radius:3px}progress#eri-progress::-webkit-progress-value{background:var(--color-accent);border-radius:3px}textarea.dragover{border-color:var(--color-accent)!important;background:var(--color-drag-bg)!important}.results-panel{margin-top:20px}.results-panel>h2{font-size:1.1rem;color:var(--color-accent);margin-bottom:12px}.results-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.result-table{width:100%;border-collapse:collapse;font-size:.82rem;font-family:Consolas,Monaco,monospace}.result-table th{text-align:left;color:var(--color-text-dim);border-bottom:1px solid var(--color-border);padding:4px 8px}.result-table td{padding:3px 8px;border-bottom:1px solid var(--color-table-border)}.result-table tr.occ td:last-child{color:var(--color-occupied)}.result-table tr.vir td:last-child{color:var(--color-virtual)}.morbvis-feature{margin:8px 0 12px}.morbvis-desc{font-size:.85rem;color:var(--color-text-secondary);line-height:1.6;margin:0 0 12px}.morbvis-desc strong{color:var(--color-morbvis)}.morbvis-feature-actions{margin-bottom:12px}.morbvis-primary-btn{display:inline-block;padding:10px 28px;background:var(--color-morbvis);color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:.95rem;font-weight:600;letter-spacing:.02em;transition:opacity .15s,transform .1s}.morbvis-primary-btn:hover{opacity:.88;transform:translateY(-1px)}.morbvis-primary-btn:active{transform:translateY(0)}.molden-secondary{padding-top:8px;border-top:1px solid var(--color-table-border)}.molden-btn{display:inline-block;padding:6px 14px;background:transparent;color:var(--color-text-secondary);border:1px solid var(--color-border-input);border-radius:4px;cursor:pointer;font-size:.8rem}.molden-btn:hover{background:var(--color-backend-hover-bg);color:var(--color-accent)}.backend-toggles{display:flex;gap:4px;margin-bottom:12px}.backend-btn{flex:1;padding:6px 8px;font-size:.78rem;font-family:Consolas,Monaco,monospace;border:1px solid var(--color-border-input);border-radius:4px;background:var(--color-input);color:var(--color-backend-text);cursor:pointer;transition:background .15s,color .15s,border-color .15s}.backend-btn.active{background:var(--color-accent);color:var(--color-accent-on);border-color:var(--color-accent);font-weight:700}.backend-btn.unsupported{background:var(--color-backend-unsup-bg);color:var(--color-backend-unsup-text);border-color:var(--color-backend-unsup-border);cursor:not-allowed;opacity:.5}.backend-btn:not(.unsupported):not(.active):hover{background:var(--color-backend-hover-bg);color:var(--color-backend-hover-text)}.scf-params{margin:-8px 0 12px}.param-row{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:center}.param-hint{width:100%;font-size:.68rem;color:var(--color-text-dim);opacity:.75;margin-top:-2px}.param-row label{display:flex;align-items:center;gap:4px;font-size:.75rem;color:var(--color-text-dim)}.param-row input[type=number]{width:56px;padding:3px 4px;font-size:.75rem;font-family:Consolas,Monaco,monospace;border:1px solid var(--color-border-input);border-radius:3px;background:var(--color-input);color:var(--color-text);text-align:center}.mol-info{margin:8px 0 2px;padding:6px 10px;background:var(--color-surface-alt);border:1px solid var(--color-border-alt);border-radius:6px;font-size:.72rem;font-family:Consolas,Monaco,monospace}.mol-info:empty{display:none}.mol-row{display:flex;flex-wrap:wrap;gap:0 16px;line-height:1.6}.mol-row-label{color:var(--color-text-dim);min-width:5em}.mol-row-val{color:var(--color-text);font-weight:600;margin-right:4px}.mol-row-dim{color:var(--color-text-dim);font-weight:400}.mol-row-shells{display:inline-flex;gap:8px}.mol-row-shell{display:inline-flex;align-items:baseline;gap:3px}.mol-row-shell b{color:var(--color-accent);font-weight:700}#convergence-graph svg{display:block;width:100%;height:auto}#molecule-viewer-3d canvas{display:block;width:100%;height:auto;cursor:grab;touch-action:none;border-radius:4px}#molecule-viewer-3d canvas:active{cursor:grabbing}#density-panel canvas{display:block;width:100%;height:auto;image-rendering:pixelated}.density-tabs{display:flex;gap:4px;margin-bottom:8px}.density-tab{flex:1;padding:5px 8px;font-size:.78rem;font-family:Consolas,Monaco,monospace;border:1px solid var(--color-border-input);border-radius:4px;background:var(--color-input);color:var(--color-text-secondary);cursor:pointer;transition:background .15s,color .15s,border-color .15s}.density-tab.active{background:var(--color-accent);color:var(--color-accent-on);border-color:var(--color-accent);font-weight:700}.density-tab:not(.active):hover{background:var(--color-backend-hover-bg);color:var(--color-backend-hover-text)}.app-header{display:flex;justify-content:center;align-items:center;position:relative;margin-bottom:20px}.app-header h1{margin-bottom:0}#theme-toggle{position:absolute;right:0;background:none;border:1px solid var(--color-border);border-radius:6px;padding:4px 10px;cursor:pointer;color:var(--color-text);font-size:1.2rem;line-height:1;transition:border-color .2s}#theme-toggle:hover{border-color:var(--color-accent)}#lang-toggle{position:absolute;right:44px;background:none;border:1px solid var(--color-border);border-radius:6px;padding:4px 8px;cursor:pointer;color:var(--color-text);font-size:.75rem;font-weight:600;line-height:1;transition:border-color .2s}#lang-toggle:hover{border-color:var(--color-accent)}.gansu-header{max-width:1000px;margin:0 auto 16px;padding:0 20px}.gansu-header-top{display:flex;justify-content:space-between;align-items:center;padding:12px 0 8px}.gansu-header-title{font-size:1.1rem;font-weight:800;letter-spacing:.06em;background:linear-gradient(135deg,var(--color-header-grad-start),var(--color-header-grad-end));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.gansu-header-right{display:flex;gap:6px}.gansu-header-right button{background:none;border:1px solid var(--color-border);border-radius:6px;padding:4px 8px;cursor:pointer;color:var(--color-text);font-size:.8rem;line-height:1;transition:border-color .15s}.gansu-header-right button:hover{background:var(--color-surface-alt);border-color:var(--color-accent)}.gansu-nav{display:flex;gap:2px;border-bottom:2px solid var(--color-border);overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch}.gansu-nav a{padding:8px 14px;font-size:.78rem;text-decoration:none;color:var(--color-text-dim);border-bottom:2px solid transparent;margin-bottom:-2px;white-space:nowrap;transition:color .15s,border-color .15s}.gansu-nav a:hover{color:var(--color-text);background:var(--color-surface-alt)}.gansu-nav a.active{color:var(--color-accent);border-bottom-color:var(--color-accent);font-weight:600}.pte-overlay{position:fixed;inset:0;z-index:10000;display:flex;align-items:center;justify-content:center;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.pte-modal{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:20px 24px;max-width:95vw;box-shadow:0 8px 32px #0003}.pte-title{font-size:.9rem;font-weight:600;color:var(--color-text);margin-bottom:12px;text-align:center}.pte-grid{display:grid;grid-template-columns:repeat(18,1fr);gap:2px}.pte-cell{display:flex;flex-direction:column;align-items:center;justify-content:center;width:38px;height:42px;border-radius:4px;cursor:pointer;border:1px solid var(--color-border);transition:background .12s,transform .12s}.pte-cell:hover:not(.pte-disabled){transform:scale(1.15);z-index:1;box-shadow:0 2px 8px #0003}.pte-cell.pte-disabled{opacity:.25;cursor:default}.pte-cell.pte-s{background:#ffa0502e}.pte-cell.pte-p{background:#64b4ff2e}.pte-cell.pte-d{background:#b48cff2e}.pte-cell.pte-s:hover:not(.pte-disabled){background:#ffa05059}.pte-cell.pte-p:hover:not(.pte-disabled){background:#64b4ff59}.pte-cell.pte-d:hover:not(.pte-disabled){background:#b48cff59}.pte-cell.pte-selected{outline:2px solid var(--color-accent);outline-offset:-1px;background:rgba(var(--accent-rgb, 0,120,200),.25)!important}.pte-z{font-size:.55rem;color:var(--color-text-dim);line-height:1}.pte-sym{font-size:.82rem;font-weight:600;color:var(--color-text);line-height:1.2}.pte-dual{display:flex;flex-direction:column;max-width:98vw;overflow-x:auto}.pte-tables{display:flex;gap:24px}.pte-col{flex:0 0 auto}.pte-btn-row{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}.pte-btn{padding:6px 20px;border-radius:6px;font-size:.82rem;cursor:pointer;border:1px solid var(--color-border);transition:background .12s}.pte-btn-cancel{background:var(--color-surface);color:var(--color-text)}.pte-btn-cancel:hover{background:var(--color-surface-alt)}.pte-btn-ok{background:var(--color-accent);color:var(--color-accent-on, #fff);border-color:var(--color-accent);font-weight:600}.pte-btn-ok:hover:not(:disabled){filter:brightness(1.1)}.pte-btn-ok:disabled{opacity:.4;cursor:default}.pt-overlay{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:#0000;-webkit-backdrop-filter:blur(0px);backdrop-filter:blur(0px);transition:background .35s ease,backdrop-filter .35s ease;pointer-events:all}.pt-overlay.visible{background:#00000073;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}:root[data-theme=dark] .pt-overlay.visible{background:#0009}.pt-card{width:420px;max-width:90vw;background:var(--color-surface);border:1px solid var(--color-border);border-radius:16px;padding:28px 28px 20px;box-shadow:0 8px 32px #0000002e,0 2px 8px #00000014;opacity:0;transform:translateY(16px) scale(.97);transition:opacity .35s ease,transform .35s ease}.pt-overlay.visible .pt-card{opacity:1;transform:translateY(0) scale(1)}:root[data-theme=dark] .pt-card{box-shadow:0 8px 40px #00000080,0 0 1px #ffffff0d inset}.pt-title-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.pt-title{font-size:.85rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--color-accent);display:flex;align-items:center;gap:8px}.pt-badges{display:flex;gap:5px}.pt-badge{font-size:.58rem;font-weight:700;letter-spacing:.06em;padding:3px 10px;border-radius:12px;transition:all .4s cubic-bezier(.4,0,.2,1);font-family:Consolas,Monaco,monospace;position:relative;overflow:hidden;border:1.5px solid transparent}.pt-badge.active{background:linear-gradient(135deg,var(--color-accent),color-mix(in srgb,var(--color-accent) 70%,#8b5cf6));color:#fff;border-color:transparent;box-shadow:0 0 12px color-mix(in srgb,var(--color-accent) 40%,transparent),0 1px 3px #00000026;animation:pt-badge-glow 2s ease-in-out infinite}.pt-badge.simd.active{background:linear-gradient(135deg,#f59e0b,#ef4444);box-shadow:0 0 12px #f59e0b66,0 1px 3px #00000026;animation:pt-badge-glow-simd 2s ease-in-out infinite}.pt-badge.active:before{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(135deg,rgba(255,255,255,.2),transparent 60%);pointer-events:none}.pt-badge.inactive{background:color-mix(in srgb,var(--color-border) 50%,transparent);color:var(--color-text-dim);opacity:.4;border-color:var(--color-border)}@keyframes pt-badge-glow{0%,to{box-shadow:0 0 8px color-mix(in srgb,var(--color-accent) 30%,transparent),0 1px 3px #00000026}50%{box-shadow:0 0 16px color-mix(in srgb,var(--color-accent) 50%,transparent),0 1px 3px #00000026}}@keyframes pt-badge-glow-simd{0%,to{box-shadow:0 0 8px #f59e0b4d,0 1px 3px #00000026}50%{box-shadow:0 0 16px #f59e0b80,0 1px 3px #00000026}}.pt-title-icon{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--color-accent);animation:pt-pulse 1.4s ease-in-out infinite}@keyframes pt-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.8)}}.pt-steps{display:flex;flex-direction:column;gap:2px}.pt-step{display:grid;grid-template-columns:22px 1fr auto;grid-template-rows:auto auto;align-items:center;gap:0 8px;padding:8px 10px;border-radius:8px;transition:background .25s ease,opacity .25s ease;font-size:.82rem}.pt-step.pending{opacity:.35}.pt-step.active{background:color-mix(in srgb,var(--color-accent) 8%,transparent);opacity:1}.pt-step.done{opacity:.7}.pt-step.error{opacity:.8;background:color-mix(in srgb,var(--color-error) 6%,transparent)}.pt-icon{grid-row:1;grid-column:1;width:22px;height:22px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:.7rem;font-weight:700;transition:all .3s ease}.pt-step.pending .pt-icon{border:2px solid var(--color-border);color:transparent}.pt-step.active .pt-icon{border:2px solid var(--color-accent);border-top-color:transparent;animation:pt-spin .8s linear infinite;color:transparent}.pt-step.done .pt-icon{background:var(--color-converged);border:none;color:#fff}.pt-step.done .pt-icon:after{content:"✓";font-size:.68rem}.pt-step.error .pt-icon{background:var(--color-error);border:none;color:#fff}.pt-step.error .pt-icon:after{content:"✗";font-size:.68rem}@keyframes pt-spin{to{transform:rotate(360deg)}}.pt-label{grid-row:1;grid-column:2;font-weight:500;color:var(--color-text);white-space:nowrap}.pt-step.pending .pt-label{color:var(--color-text-dim)}.pt-step.active .pt-label{color:var(--color-accent);font-weight:600}.pt-right{grid-row:1;grid-column:3;display:flex;align-items:center;gap:8px;justify-content:flex-end}.pt-detail{font-size:.72rem;color:var(--color-text-dim);font-family:Consolas,Monaco,monospace;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pt-step.active .pt-detail{color:var(--color-text-secondary)}.pt-time{font-size:.72rem;color:var(--color-text-dim);font-family:Consolas,Monaco,monospace;min-width:42px;text-align:right}.pt-step.active .pt-time{color:var(--color-accent)}.pt-bar{display:none;grid-row:2;grid-column:2 / 4}.pt-footer{margin-top:16px;padding-top:12px;border-top:1px solid var(--color-border);display:flex;justify-content:space-between;align-items:center}.pt-cancel{background:none;border:1px solid var(--color-border);border-radius:6px;padding:4px 16px;font-size:.8rem;color:var(--color-text-secondary);cursor:pointer;transition:color .15s,border-color .15s}.pt-cancel:hover{color:#e74c3c;border-color:#e74c3c}.pt-cancel:disabled{opacity:.4;cursor:default}.pt-total{font-size:.78rem;font-weight:600;font-family:Consolas,Monaco,monospace;color:var(--color-text-secondary)}.opt-disabled{opacity:.45;cursor:not-allowed;color:var(--color-text-dim)}.opt-disabled input[type=checkbox]{cursor:not-allowed}.xyz-error{display:none;font-size:.72rem;color:var(--color-error, #e74c3c);background:#e74c3c14;border:1px solid rgba(231,76,60,.3);border-radius:5px;padding:5px 8px;margin-top:4px;line-height:1.4;font-family:ui-monospace,Consolas,monospace}.mult-preview{font-size:.72rem;color:var(--color-text-dim);font-family:ui-monospace,Consolas,monospace;margin-top:4px;min-height:1em}.mult-preview.error{color:var(--color-error, #e74c3c);background:#e74c3c14;border:1px solid rgba(231,76,60,.3);border-radius:4px;padding:3px 7px}