:root{--bg:#f7f8fb;--panel:#fff;--accent:#2b7cff;--muted:#666;--text:#111;--muted-border:#e6e6e6;--input-bg:#fff;--disabled-bg:#f0f0f0;--hover-bg:#fcfcfc}*{box-sizing:border-box;font-family:Segoe UI,Roboto,Helvetica,Arial,sans-serif}body{margin:0;background:var(--bg);color:var(--text);display:flex;align-items:center;justify-content:center;height:100vh}.container{width:max-content;max-width:92vw;border-radius:10px;box-shadow:0 6px 24px rgb(20 30 60 / .08)}.controls{display:flex;align-items:center;gap:10px;flex-wrap:nowrap}.controls .row{padding:0;justify-content:flex-start}.controls .actions{padding-top:0}.row{display:flex;align-items:center;justify-content:space-between;padding:8px 10px;border-radius:6px;transition:opacity 0.2s}#symbol-pool{padding:6px;border:1px solid var(--muted-border);border-radius:6px;width:180px}#symbol-pool:disabled{background:var(--disabled-bg);color:#999;cursor:not-allowed}.row.disabled{opacity:.5;pointer-events:none}.row span{font-size:14px}.switch{padding:8px 10px}.toggle-wrap{display:inline-block;position:relative;width:48px;height:26px;flex-shrink:0}.toggle-wrap input{position:absolute;opacity:0;width:0;height:0;margin:0}.toggle-wrap .slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:#e5e7eb;border-radius:999px;transition:background-color 0.3s cubic-bezier(.4,0,.2,1);box-shadow:inset 0 2px 4px rgb(0 0 0 / .06);border:1px solid rgb(0 0 0 / .04)}.icon-toggle{position:relative;display:flex;align-items:center}.icon-toggle input{position:absolute;opacity:0;width:0;height:0}.icon-box{width:28px;height:28px;border:1.5px solid var(--muted-border);border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;color:#666;background:var(--input-bg);transition:all 0.2s;user-select:none;cursor:pointer}input:checked+.icon-box,.icon-box.active{border-color:var(--accent);color:var(--accent);background:rgb(43 124 255 / .08)}.icon-toggle input:focus+.icon-box{box-shadow:0 0 0 3px rgb(43 124 255 / .12)}.toggle-wrap .slider::before{content:'';position:absolute;left:3px;top:3px;width:20px;height:20px;background-color:#fff;border-radius:50%;box-shadow:0 2px 4px rgb(0 0 0 / .2),0 1px 1px rgb(0 0 0 / .1);transition:transform 0.3s cubic-bezier(.34,1.56,.64,1)}.toggle-wrap input:checked+.slider{background-color:var(--accent);box-shadow:none;border-color:#fff0}.toggle-wrap input:checked+.slider::before{transform:translateX(22px)}.toggle-wrap input:focus+.slider{box-shadow:0 0 0 3px rgb(43 124 255 / .15)}.length-control{position:relative;display:flex;align-items:center}.length-control #length-display{width:32px;font-variant-numeric:tabular-nums}.icon-small{width:14px;height:14px;display:block}.actions{display:flex;justify-content:flex-end;padding-top:6px}#generate{width:28px;height:28px;padding:0;border-radius:6px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center}#generate:hover{background:#1a6ff2}#generate svg{width:18px;height:18px}button{cursor:pointer;padding:8px 14px;border-radius:8px;border:0;background:var(--accent);color:#fff;transition:background 0.2s,opacity 0.2s}button:disabled{background:#ccc;cursor:not-allowed;opacity:.6}.output{margin-top:14px}#result{width:100%;height:96px;padding:10px;border-radius:8px;border:1px solid var(--muted-border);background:var(--input-bg);color:var(--text);font-family:monospace;cursor:pointer;transition:background 0.2s;word-break:break-all;overflow-wrap:anywhere}#result{overflow:auto;resize:none;-ms-overflow-style:none;scrollbar-width:none}#result::-webkit-scrollbar{width:0;height:0;display:none}#result:hover{background:var(--hover-bg);border-color:var(--accent)}@media (max-width:720px){.container{width:92vw}}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgb(0 0 0 / .4);display:none;align-items:center;justify-content:center;z-index:1000;backdrop-filter:blur(2px)}.modal-overlay.active{display:flex}.modal-content{background:var(--panel);width:222px;height:142px;padding:10px 8px;border-radius:12px;box-shadow:0 10px 40px rgb(0 0 0 / .2);animation:modal-pop 0.25s cubic-bezier(.18,.89,.32,1.28);position:relative;overflow:hidden}@keyframes modal-pop{from{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}#close-modal{position:absolute;top:4px;right:4px;width:20px;height:20px;padding:0;background:#fff0;color:var(--muted);border:none;display:flex;align-items:center;justify-content:center;border-radius:4px;cursor:pointer;z-index:10}#close-modal:hover{background:var(--muted-border);color:var(--text)}.modal-body{display:grid;grid-template-columns:1fr 1fr;gap:2px 6px;height:100%;align-content:start;padding-top:4px}.modal-body .row{margin:0;padding:2px 4px;min-height:24px;background:#fff0;gap:8px}.modal-body .row span{font-size:11px;color:var(--text);white-space:nowrap}.full-width-row{grid-column:span 2;margin-top:2px!important}#symbol-pool{width:100%;height:22px;font-size:11px;padding:0 6px;border:1px solid var(--muted-border);background:var(--input-bg);border-radius:4px;color:var(--muted)}#symbol-pool:focus{border-color:var(--accent);color:var(--text);outline:none}.modal-body .toggle-wrap{width:28px;height:16px}.modal-body .toggle-wrap .slider{box-shadow:inset 0 1px 2px rgb(0 0 0 / .1)}.modal-body .toggle-wrap .slider::before{width:12px;height:12px;left:2px;top:2px;box-shadow:0 1px 2px rgb(0 0 0 / .2)}.modal-body .toggle-wrap input:checked+.slider::before{transform:translateX(12px)}body.dark .toggle-wrap .slider{background-color:#2d3748;border-color:rgb(255 255 255 / .05)}body.dark .toggle-wrap input:checked+.slider{background-color:var(--accent)}.dark{--bg:#0b1220;--panel:#0f1724;--accent:#58a6ff;--muted:#9aa4b2;--text:#e6eef8;--muted-border:#22313a;--input-bg:#0b1524;--disabled-bg:#071018;--hover-bg:rgba(255, 255, 255, 0.02)}body.dark #length-display,body.dark #extra-settings-btn .icon-box{color:#fff;border-color:#cfcfcf}body.dark #extra-settings-btn:hover .icon-box{color:#0b1220;border-color:#cfcfcf;background:#f0f0f0}.container.align-ltop{position:fixed;top:0;left:0;z-index:999;transform:none}.result-wrapper{position:relative}.score-container{position:absolute;bottom:4px;left:6px;right:6px;height:6px;background:rgb(0 0 0 / .08);border-radius:4px;overflow:hidden}#score-bar{height:100%;width:0%;transition:width 0.25s ease,background 0.25s ease}