.two-sum-page-wrapper{flex-direction:column;gap:2rem;max-width:1080px;margin:0 auto;display:flex}.page-heading{flex-direction:column;gap:.85rem;display:flex}.page-heading .breadcrumb-nav{color:var(--color-text-faint);align-items:center;gap:.5rem;font-size:.85rem;display:flex}.page-heading .breadcrumb-nav .breadcrumb-link{color:var(--color-text-muted);transition:color var(--transition-fast);align-items:center;gap:.35rem;text-decoration:none;display:inline-flex}.page-heading .breadcrumb-nav .breadcrumb-link:hover{color:var(--color-primary-light)}.page-heading .breadcrumb-nav .breadcrumb-separator{color:var(--color-border-strong)}.page-heading .breadcrumb-nav .breadcrumb-current{color:var(--color-text-main);font-weight:500}.page-heading .heading-content{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.page-heading .heading-content .title-cluster{flex-wrap:wrap;align-items:baseline;gap:.85rem;display:flex}.page-heading .heading-content .title-cluster .page-title{letter-spacing:-.025em;color:#fff;font-size:clamp(1.8rem,4vw,2.4rem);font-weight:800}.page-heading .heading-content .title-cluster .subtitle-tag{color:var(--color-cyan);font-size:1rem;font-weight:500}.page-heading .heading-content .complexity-pills{flex-wrap:wrap;gap:.5rem;display:flex}.page-heading .algorithm-overview{color:var(--color-text-muted);max-width:820px;font-size:.95rem;line-height:1.6}.page-heading .algorithm-overview strong{color:var(--color-text-main)}.two-sum-visualizer{flex-direction:column;gap:1.5rem;display:flex}.controls-card{background:var(--color-bg-surface);border:1px solid var(--color-border-default);box-shadow:var(--shadow-md);border-radius:14px;flex-direction:column;gap:1.25rem;padding:1.25rem 1.5rem;display:flex}.controls-card .controls-row-primary{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.controls-card .primary-actions{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.controls-card .primary-actions .main-play-btn{min-width:135px;position:relative;overflow:hidden}.controls-card .primary-actions .main-play-btn:after{content:"";pointer-events:none;background:linear-gradient(90deg,#fff0 0%,#ffffff40 50%,#fff0 100%);width:40%;height:200%;animation:4s linear infinite buttonShine;position:absolute;top:-50%;left:-60%;transform:rotate(30deg)}.controls-card .ratio-toggle-group{align-items:center;gap:.65rem;display:flex}.controls-card .ratio-toggle-group .control-label{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em;font-size:.8rem;font-weight:600}.controls-card .segmented-control{background:var(--color-bg-base);border:1px solid var(--color-border-default);border-radius:8px;gap:3px;padding:3px;display:inline-flex}.controls-card .segmented-control .segment-btn{color:var(--color-text-muted);font-size:.825rem;font-weight:600;font-family:var(--font-sans);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;border-radius:6px;align-items:center;gap:.35rem;padding:.35rem .75rem;display:inline-flex}.controls-card .segmented-control .segment-btn:hover:not(:disabled){color:var(--color-text-main)}.controls-card .segmented-control .segment-btn.active{background:var(--color-bg-elevated);color:#fff;border:1px solid var(--color-border-strong);box-shadow:0 1px 3px #0006}.controls-card .segmented-control .segment-btn:disabled{opacity:.5;cursor:not-allowed}.controls-card .segmented-control.btn-sm-segments .segment-btn{padding:.25rem .6rem;font-size:.75rem}.controls-card .controls-row-secondary{border-top:1px solid var(--color-border-subtle);grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1.5rem;padding-top:1rem;display:grid}.controls-card .controls-row-secondary .control-item{flex-direction:column;gap:.5rem;display:flex}.controls-card .controls-row-secondary .control-item .control-header{justify-content:space-between;align-items:center;display:flex}.controls-card .controls-row-secondary .control-item .control-header .control-label{color:var(--color-text-muted);font-size:.8rem;font-weight:600}.controls-card .controls-row-secondary .control-item .control-header .control-header-actions{align-items:center;gap:.4rem;display:flex}.controls-card .controls-row-secondary .control-item .control-header .control-value{font-size:.8rem;font-family:var(--font-mono);color:var(--color-cyan);font-weight:600}.controls-card .controls-row-secondary .control-item .control-header .btn-inline-randomize{border:1px solid var(--color-border-subtle);width:22px;height:22px;color:var(--color-text-faint);cursor:pointer;transition:color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);background:#ffffff08;border-radius:5px;justify-content:center;align-items:center;padding:0;display:inline-flex}.controls-card .controls-row-secondary .control-item .control-header .btn-inline-randomize:hover{color:var(--color-cyan);background:#38bdf814;border-color:#38bdf866}.controls-card .controls-row-secondary .control-item .control-header .btn-inline-randomize:active{transform:translateY(1px)}.controls-card .controls-row-secondary .placement-control,.controls-card .controls-row-secondary .order-control{justify-content:flex-end}@keyframes buttonShine{0%{left:-60%}20%,to{left:140%}}.visualizer-viewport-wrapper{justify-content:center;width:100%;transition:all .4s cubic-bezier(.4,0,.2,1);display:flex}.visualizer-viewport-wrapper.aspect-16-9{max-width:1040px;margin:0 auto}.visualizer-viewport-wrapper.aspect-16-9 .visualizer-frame{aspect-ratio:16/9;width:min(100%,120.889vh);margin:0 auto}.visualizer-viewport-wrapper.aspect-9-16{max-width:420px;margin:0 auto}.visualizer-viewport-wrapper.aspect-9-16 .visualizer-frame{aspect-ratio:9/16;width:min(100%,46.125vh);box-shadow:0 0 35px #000000b3, 0 0 0 1px var(--color-border-strong);margin:0 auto}.visualizer-frame{border:1px solid var(--color-border-strong);box-shadow:var(--shadow-lg), 0 0 0 1px #ffffff0d;background:radial-gradient(circle at 50% 20%,#162038cc 0%,#080c14fa 100%);border-radius:18px;flex-direction:column;display:flex;position:relative;overflow:hidden}.visualizer-frame:before{content:"";pointer-events:none;z-index:1;background-image:radial-gradient(circle at 1px 1px,#ffffff0d 1px,#0000 0);background-size:20px 20px;position:absolute;inset:0}.frame-body{z-index:5;flex:1;min-width:0;min-height:0;display:flex;position:relative}.frame-hud{z-index:10;-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border-default);background:#0e1526d9;justify-content:space-between;align-items:center;gap:.75rem;padding:.85rem 1.25rem;display:flex;position:relative}.frame-hud .hud-left{align-items:center;gap:.5rem;display:flex}.frame-hud .hud-left .hud-pill{border:1px solid var(--color-border-default);font-family:var(--font-mono);background:#0006;border-radius:6px;align-items:center;gap:.4rem;padding:.25rem .6rem;display:inline-flex}.frame-hud .hud-left .hud-pill .hud-label{letter-spacing:.05em;color:var(--color-text-faint);font-size:.65rem;font-weight:700}.frame-hud .hud-left .hud-pill .hud-target-number{color:var(--color-primary-light);font-size:.9rem;font-weight:700}.frame-hud .hud-left .hud-pill .hud-value{color:var(--color-text-main);font-size:.85rem;font-weight:600}.frame-hud .hud-center{align-items:center;display:flex}.frame-hud .hud-center .hud-calculation{border:1px solid var(--color-border-subtle);font-family:var(--font-mono);background:#080c1499;border-radius:8px;align-items:center;gap:.45rem;padding:.3rem .75rem;font-size:.85rem;display:inline-flex}.frame-hud .hud-center .hud-calculation .calc-part{align-items:center;gap:.3rem;display:inline-flex}.frame-hud .hud-center .hud-calculation .calc-part .calc-badge{border-radius:4px;padding:1px 4px;font-size:.65rem;font-weight:700}.frame-hud .hud-center .hud-calculation .calc-part.left-part{color:var(--color-cyan)}.frame-hud .hud-center .hud-calculation .calc-part.left-part .calc-badge{color:var(--color-cyan);background:#38bdf833}.frame-hud .hud-center .hud-calculation .calc-part.right-part{color:var(--color-amber)}.frame-hud .hud-center .hud-calculation .calc-part.right-part .calc-badge{color:var(--color-amber);background:#f59e0b33}.frame-hud .hud-center .hud-calculation .calc-part .calc-val{font-weight:700}.frame-hud .hud-center .hud-calculation .calc-operator{color:var(--color-text-faint);font-weight:600}.frame-hud .hud-center .hud-calculation .calc-sum{color:var(--color-text-main);transition:color var(--transition-fast);padding:0 .2rem;font-weight:800}.frame-hud .hud-center .hud-calculation .calc-sum.matched{color:var(--color-success);text-shadow:0 0 10px var(--color-success-glow)}.frame-hud .hud-center .hud-calculation .hud-lookup{letter-spacing:.04em;border-radius:4px;padding:1px 5px;font-size:.62rem;font-weight:700}.frame-hud .hud-center .hud-calculation .hud-lookup.hit{color:var(--color-success);background:#10b9812e;border:1px solid #10b98166}.frame-hud .hud-center .hud-calculation .hud-lookup.miss{color:var(--color-amber);background:#f59e0b24;border:1px solid #f59e0b52}.frame-hud .hud-center .calc-empty{font-family:var(--font-mono);color:var(--color-text-faint);padding:.3rem .6rem;font-size:.78rem}.frame-hud .hud-right{align-items:center;display:flex}.frame-hud .hud-right .hud-hint{font-family:var(--font-mono);border-radius:6px;padding:.25rem .65rem;font-size:.75rem;font-weight:600}.frame-hud .hud-right .hud-hint.hint-increase{color:var(--color-cyan);background:#38bdf826;border:1px solid #38bdf84d}.frame-hud .hud-right .hud-hint.hint-decrease{color:var(--color-amber);background:#f59e0b26;border:1px solid #f59e0b4d}.frame-hud .hud-right .hud-hint.hint-store{color:var(--color-primary-light);background:#6366f126;border:1px solid #6366f152}.frame-hud .hud-right .hud-match-badge{box-shadow:0 0 12px var(--color-success-glow)}.canvas-content{z-index:5;flex:1;justify-content:center;align-items:center;min-width:0;min-height:0;padding:1.25rem;display:flex;position:relative;overflow:hidden}.canvas-content .circles-grid{place-content:center;align-items:center;gap:var(--circle-gap,8px);flex-wrap:wrap;width:100%;max-width:100%;height:100%;max-height:100%;display:flex}.number{width:var(--circle-size,44px);height:var(--circle-size,44px);min-width:var(--circle-size,44px);min-height:var(--circle-size,44px);font-family:var(--font-mono);font-size:var(--circle-font-size,14px);color:#cbd5e1;cursor:default;user-select:none;background-color:#131d2d;border:1.5px solid #94a3b833;border-radius:50%;justify-content:center;align-items:center;font-weight:700;transition:background-color .22s,border-color .22s,box-shadow .22s,color .22s,opacity .22s,font-size .2s;display:inline-flex;position:relative;box-shadow:inset 0 1px #ffffff0d,0 2px 6px #0006}.number .num-text{text-align:center;z-index:2;line-height:1}.number .pointer-tag{z-index:4;letter-spacing:.02em;border-radius:4px;padding:2px 4px;font-size:.6rem;font-weight:800;line-height:1;position:absolute;top:-9px;box-shadow:0 2px 4px #0006}.number .pointer-tag.tag-l{background:var(--color-cyan);color:#042f2e}.number .pointer-tag.tag-r{background:var(--color-amber);color:#451a03}.number .pointer-tag.tag-both{background:var(--color-primary-light);color:#1e1b4b}.number .pointer-tag.tag-cur{background:var(--color-cyan);color:#042f2e}.number .pointer-tag.tag-i{background:var(--color-amber);color:#451a03}.number .pointer-tag.tag-j{background:var(--color-cyan);color:#042f2e}.number .pointer-tag.tag-found{background:var(--color-success);color:#022c22}.number:hover:not(.highlighted1):not(.highlighted2):not(.ruled-out):not(.hash-stored):not(.brute-exhausted):not(.brute-checked){border-color:var(--color-border-glow);z-index:6;background-color:#18243a}.highlighted1{z-index:8;color:#fff;border:2px solid #38bdf8;box-shadow:0 0 12px #38bdf859,inset 0 0 8px #38bdf826}.highlighted1.pointer-left{border-color:var(--color-cyan);background-color:#075985;box-shadow:0 0 14px #38bdf873,inset 0 0 8px #ffffff26}.highlighted1.pointer-right{border-color:var(--color-amber);background-color:#92400e;box-shadow:0 0 14px #f59e0b73,inset 0 0 8px #ffffff26}.highlighted1.pointer-both{border-color:var(--color-primary-light);background-color:#4338ca}.highlighted2{border:2.5px solid var(--color-success);color:#fff;z-index:12;box-shadow:0 0 18px var(--color-success-glow), inset 0 0 10px #fff3;background-color:#047857}.ruled-out{opacity:.25;filter:grayscale(80%);border-color:#94a3b814}.highlighted1.hash-current{border-color:var(--color-cyan);background-color:#075985;box-shadow:0 0 14px #38bdf873,inset 0 0 8px #ffffff26}.hash-stored{color:#c7d2fe;background-color:#1a2540;border-color:#818cf859}.highlighted1.brute-i{border-color:var(--color-amber);background-color:#92400e;box-shadow:0 0 14px #f59e0b73,inset 0 0 8px #ffffff26}.highlighted1.brute-j{border-color:var(--color-cyan);background-color:#075985;box-shadow:0 0 14px #38bdf873,inset 0 0 8px #ffffff26}.brute-exhausted{opacity:.3;filter:grayscale(60%);border-color:#94a3b814}.brute-checked{opacity:.5;border-color:#94a3b81f}.frame-statusbar{z-index:10;-webkit-backdrop-filter:blur(8px);border-top:1px solid var(--color-border-subtle);font-size:.775rem;font-family:var(--font-mono);color:var(--color-text-faint);background:#0e1526d9;justify-content:space-between;align-items:center;padding:.6rem 1.25rem;display:flex;position:relative}.frame-statusbar .status-indices,.frame-statusbar .status-summary{align-items:center;gap:.5rem;display:flex}.frame-statusbar .status-sep{color:var(--color-border-strong)}.frame-statusbar .label-short{display:none}.algorithm-guide-card{background:var(--color-bg-surface);border:1px solid var(--color-border-default);border-radius:14px;flex-direction:column;gap:1.25rem;padding:1.5rem;display:flex}.algorithm-guide-card .guide-header{border-bottom:1px solid var(--color-border-subtle);justify-content:space-between;align-items:center;padding-bottom:.75rem;display:flex}.algorithm-guide-card .guide-header .guide-title{color:#fff;align-items:center;gap:.5rem;font-size:1.1rem;font-weight:700;display:flex}.algorithm-guide-card .guide-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1.25rem;display:grid}.algorithm-guide-card .guide-step{border:1px solid var(--color-border-subtle);background:#0e152680;border-radius:10px;flex-direction:column;gap:.4rem;padding:1rem;display:flex}.algorithm-guide-card .guide-step .step-num{font-family:var(--font-mono);color:var(--color-primary-light);font-size:.75rem;font-weight:700}.algorithm-guide-card .guide-step h4{color:var(--color-text-main);font-size:.95rem;font-weight:600}.algorithm-guide-card .guide-step p{color:var(--color-text-muted);font-size:.825rem;line-height:1.45}.algorithm-guide-card .guide-step p code{font-family:var(--font-mono);color:var(--color-cyan);background:#38bdf81a;border-radius:4px;padding:.1rem .3rem}.two-sum-tabs-root{flex-direction:column;gap:1.5rem;display:flex}.approach-tabs{background:var(--color-bg-surface);border:1px solid var(--color-border-default);box-shadow:var(--shadow-sm);scrollbar-width:none;-webkit-overflow-scrolling:touch;border-radius:14px;gap:.5rem;padding:.35rem;display:flex;overflow-x:auto}.approach-tabs::-webkit-scrollbar{display:none}.approach-tab{min-width:200px;color:var(--color-text-muted);cursor:pointer;text-align:left;font-family:var(--font-sans);transition:background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);background:0 0;border:1px solid #0000;border-radius:10px;flex:1;align-items:center;gap:.75rem;padding:.7rem .9rem;display:flex}.approach-tab:hover{color:var(--color-text-main);background:#ffffff0a}.approach-tab.active{color:#fff;background:linear-gradient(135deg,#6366f12e,#38bdf814);border-color:#6366f166;box-shadow:0 0 18px #6366f11f}.approach-tab .tab-icon{border:1px solid var(--color-border-subtle);width:36px;height:36px;color:var(--color-primary-light);transition:background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);background:#ffffff0d;border-radius:9px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.approach-tab.active .tab-icon{background:linear-gradient(135deg, var(--color-primary), var(--color-cyan));color:#fff;box-shadow:0 0 14px var(--color-primary-glow);border-color:#0000}.approach-tab .tab-text{flex-direction:column;gap:.1rem;min-width:0;display:flex}.approach-tab .tab-title{font-size:.95rem;font-weight:600}.approach-tab .tab-subtitle{color:var(--color-text-faint);font-size:.72rem}.approach-tab.active .tab-subtitle{color:var(--color-text-muted)}.approach-tab .tab-active-dot{background:var(--color-success);width:6px;height:6px;box-shadow:0 0 8px var(--color-success);border-radius:50%;flex-shrink:0;margin-left:auto}.approach-meta{flex-direction:column;gap:.6rem;display:flex}.approach-meta .approach-pills{flex-wrap:wrap;gap:.5rem;display:flex}.approach-meta .approach-overview{color:var(--color-text-muted);max-width:880px;font-size:.9rem;line-height:1.6}.brute-stats-panel{background:var(--color-bg-surface);border:1px solid var(--color-border-default);box-shadow:var(--shadow-sm);border-radius:14px;flex-direction:column;gap:.85rem;padding:1.25rem 1.5rem;display:flex}.brute-stats-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;display:flex}.brute-stats-title{color:#fff;align-items:center;gap:.5rem;font-size:1rem;font-weight:700;display:flex}.brute-stats-title svg{color:var(--color-primary-light)}.brute-pair-count{font-family:var(--font-mono);color:var(--color-text-faint);font-size:.75rem}.brute-note{color:var(--color-text-faint);font-size:.75rem;line-height:1.5}.hash-frame-body{flex-direction:row}.hash-frame-panel{z-index:6;border-left:1px solid var(--color-border-subtle);background:#080c148c;flex-direction:column;flex:none;gap:.35rem;width:clamp(150px,30%,280px);min-height:0;padding:.55rem .65rem;display:flex;position:relative;overflow:hidden}.hash-frame-header{justify-content:space-between;align-items:center;gap:.4rem;display:flex}.hash-frame-title{color:var(--color-text-main);white-space:nowrap;align-items:center;gap:.3rem;font-size:.78rem;font-weight:700;display:inline-flex}.hash-frame-title svg{color:var(--color-primary-light);flex-shrink:0}.hash-frame-count{text-align:center;min-width:18px;font-family:var(--font-mono);color:var(--color-cyan);background:#38bdf81f;border:1px solid #38bdf84d;border-radius:9999px;flex-shrink:0;padding:0 5px;font-size:.65rem;font-weight:700}.hash-frame-subtitle{font-family:var(--font-mono);color:var(--color-text-faint);font-size:.62rem}.hash-frame-entries{scrollbar-width:thin;scrollbar-color:var(--color-border-strong) transparent;flex-direction:column;flex:1;gap:.25rem;min-height:0;padding-right:2px;display:flex;overflow-y:auto}.hash-frame-chip{color:var(--color-cyan);font-family:var(--font-mono);white-space:nowrap;background:#38bdf812;border:1px solid #38bdf82e;border-radius:6px;align-items:center;gap:.3rem;padding:.22rem .4rem;font-size:.7rem;font-weight:600;display:flex}.hash-frame-chip .chip-arrow{color:var(--color-text-faint)}.hash-frame-chip .chip-index{color:var(--color-text-muted);font-size:.62rem;font-weight:500}.hash-frame-chip.matched{color:var(--color-success);background:#10b98129;border-color:#10b98180;box-shadow:0 0 10px #10b9812e}.hash-frame-chip.matched .chip-index{color:var(--color-success)}.hash-frame-empty{border:1px dashed var(--color-border-default);color:var(--color-text-faint);border-radius:8px;flex:1;justify-content:center;align-items:center;font-size:.72rem;display:flex}.hash-frame-note{font-family:var(--font-mono);color:var(--color-text-faint);text-align:right;font-size:.58rem}.visualizer-viewport-wrapper.aspect-9-16 .hash-frame-body{flex-direction:column}.visualizer-viewport-wrapper.aspect-9-16 .hash-frame-panel{border-left:none;border-top:1px solid var(--color-border-subtle);width:100%;min-height:110px;max-height:32%}.brute-stats-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.75rem;display:grid}.brute-stat{border:1px solid var(--color-border-subtle);background:#0003;border-radius:9px;flex-direction:column;gap:.15rem;padding:.6rem .75rem;display:flex}.brute-stat .stat-label{letter-spacing:.05em;text-transform:uppercase;color:var(--color-text-faint);font-size:.68rem;font-weight:600}.brute-stat .stat-value{font-family:var(--font-mono);color:var(--color-text-main);font-size:1.05rem;font-weight:700}.brute-progress{background:var(--color-bg-elevated);border:1px solid var(--color-border-subtle);border-radius:9999px;height:6px;overflow:hidden}.brute-progress .brute-progress-fill{background:linear-gradient(90deg, var(--color-primary), var(--color-cyan));height:100%;transition:width .2s}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud{grid-template-columns:1fr auto;grid-template-areas:"left right""center center";align-items:center;gap:.35rem .5rem;padding:.45rem .6rem;display:grid}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-left{grid-area:left;justify-self:start;gap:.35rem}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-center{grid-area:center;justify-self:center}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-right{grid-area:right;justify-self:end}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-left,.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-center,.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-right{justify-content:center}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-pill{padding:.2rem .45rem}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-pill .hud-label{font-size:.58rem}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-pill .hud-target-number{font-size:.8rem}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-pill .hud-value{font-size:.75rem}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-center .hud-calculation{gap:.3rem;padding:.2rem .5rem;font-size:.72rem}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-center .hud-calculation .calc-badge{font-size:.58rem}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-center .hud-calculation .hud-lookup{padding:1px 4px;font-size:.56rem}.visualizer-viewport-wrapper.aspect-9-16 .frame-hud .hud-right .hud-hint{padding:.15rem .45rem;font-size:.65rem}.visualizer-viewport-wrapper.aspect-9-16 .frame-statusbar{flex-wrap:wrap;justify-content:center;gap:.2rem .6rem;padding:.35rem .6rem;font-size:.66rem}.visualizer-viewport-wrapper.aspect-9-16 .frame-statusbar .status-summary{display:none}.visualizer-viewport-wrapper.aspect-9-16 .frame-statusbar .status-indices{flex-wrap:wrap;justify-content:center;row-gap:.15rem}.visualizer-viewport-wrapper.aspect-9-16 .frame-statusbar .label-long{display:none}.visualizer-viewport-wrapper.aspect-9-16 .frame-statusbar .label-short{color:var(--color-text-muted);font-weight:700;display:inline}.visualizer-viewport-wrapper.aspect-9-16 .canvas-content{padding:.5rem}@media (width<=768px){.frame-hud{grid-template-columns:1fr auto;grid-template-areas:"left right""center center";align-items:center;gap:.35rem .5rem;padding:.45rem .6rem;display:grid}.frame-hud .hud-left{grid-area:left;justify-self:start;gap:.35rem}.frame-hud .hud-center{grid-area:center;justify-self:center}.frame-hud .hud-right{grid-area:right;justify-self:end}.frame-hud .hud-left,.frame-hud .hud-center,.frame-hud .hud-right{justify-content:center}.frame-hud .hud-pill{padding:.2rem .45rem}.frame-hud .hud-pill .hud-label{font-size:.58rem}.frame-hud .hud-pill .hud-target-number{font-size:.8rem}.frame-hud .hud-pill .hud-value{font-size:.75rem}.frame-hud .hud-center .hud-calculation{gap:.3rem;padding:.2rem .5rem;font-size:.72rem}.frame-hud .hud-center .hud-calculation .calc-badge{font-size:.58rem}.frame-hud .hud-center .hud-calculation .hud-lookup{padding:1px 4px;font-size:.56rem}.frame-hud .hud-right .hud-hint{padding:.15rem .45rem;font-size:.65rem}.frame-statusbar{flex-wrap:wrap;justify-content:center;gap:.2rem .6rem;padding:.35rem .6rem;font-size:.66rem}.frame-statusbar .status-summary{display:none}.frame-statusbar .status-indices{flex-wrap:wrap;justify-content:center;row-gap:.15rem}.frame-statusbar .label-long{display:none}.frame-statusbar .label-short{color:var(--color-text-muted);font-weight:700;display:inline}.canvas-content{padding:.5rem}.two-sum-page-wrapper{gap:1.5rem}.two-sum-tabs-root{gap:1.25rem}.template-toolbar{display:none}.approach-tab{flex:none;min-width:205px}.algorithm-guide-card,.brute-stats-panel{padding:1rem}.hash-frame-panel{gap:.25rem;width:clamp(112px,32%,150px);padding:.4rem}.hash-frame-title{font-size:.68rem}.hash-frame-title svg{width:12px;height:12px}.hash-frame-subtitle,.hash-frame-note{display:none}.hash-frame-chip{padding:.16rem .3rem;font-size:.62rem}.hash-frame-chip .chip-index{font-size:.56rem}.brute-stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.controls-card{padding:1rem}.controls-card .controls-row-primary{flex-direction:column;align-items:stretch}.controls-card .controls-row-primary .primary-actions{grid-template-columns:repeat(2,minmax(0,1fr));gap:.5rem;display:grid}.controls-card .controls-row-primary .primary-actions .main-play-btn{grid-column:1/-1}.controls-card .controls-row-primary .primary-actions .btn{width:100%;min-width:0}.controls-card .controls-row-secondary{gap:1rem}}.template-toolbar{border:1px solid var(--color-border-default);background:#0e152680;border-radius:12px;flex-wrap:wrap;align-items:center;gap:.5rem;padding:.55rem .75rem;display:flex}.template-toolbar .btn{gap:.35rem}.template-progress{align-items:center;gap:.5rem;margin-left:auto;display:inline-flex}.template-progress .template-progress-track{background:var(--color-bg-elevated);border:1px solid var(--color-border-subtle);border-radius:9999px;width:110px;height:6px;overflow:hidden}.template-progress .template-progress-fill{background:linear-gradient(90deg, var(--color-primary), var(--color-cyan));height:100%;transition:width .25s}.template-progress .template-progress-text{font-family:var(--font-mono);color:var(--color-text-muted);white-space:nowrap;font-size:.72rem}.template-modal-overlay{z-index:100;-webkit-backdrop-filter:blur(8px);background:#04060ab8;justify-content:center;align-items:center;padding:1.5rem;display:flex;position:fixed;inset:0}.template-modal{background:var(--color-bg-surface);border:1px solid var(--color-border-strong);width:min(760px,100%);max-height:86vh;box-shadow:var(--shadow-lg), 0 0 40px #6366f12e;border-radius:16px;flex-direction:column;display:flex;overflow:hidden}.template-modal-header{border-bottom:1px solid var(--color-border-default);background:var(--color-bg-elevated);justify-content:space-between;align-items:center;gap:1rem;padding:1rem 1.25rem;display:flex}.template-modal-header .template-modal-title{color:#fff;align-items:center;gap:.55rem;font-size:1.05rem;font-weight:700;display:inline-flex}.template-modal-header .template-modal-title svg{color:var(--color-primary-light)}.template-modal-header .template-modal-close{border:1px solid var(--color-border-default);width:30px;height:30px;color:var(--color-text-muted);cursor:pointer;transition:color var(--transition-fast), border-color var(--transition-fast);background:#ffffff0a;border-radius:8px;justify-content:center;align-items:center;padding:0;display:inline-flex}.template-modal-header .template-modal-close:hover{color:#fff;border-color:var(--color-border-strong)}.template-modal-hint{color:var(--color-text-muted);margin:0;padding:.8rem 1.25rem 0;font-size:.82rem;line-height:1.5}.template-runs{scrollbar-width:thin;scrollbar-color:var(--color-border-strong) transparent;flex-direction:column;flex:1;gap:.7rem;min-height:0;padding:1rem 1.25rem;display:flex;overflow-y:auto}.template-run-row{border:1px solid var(--color-border-subtle);background:#ffffff05;border-radius:10px;flex-direction:column;gap:.75rem;padding:.7rem .8rem;display:flex}.template-run-row .template-run-top{flex-wrap:wrap;align-items:flex-end;gap:.6rem;display:flex}.template-run-row .template-run-index{min-width:26px;height:26px;font-family:var(--font-mono);color:var(--color-primary-light);background:#6366f11f;border:1px solid #6366f14d;border-radius:6px;justify-content:center;align-items:center;margin-bottom:.1rem;padding:0 .3rem;font-size:.7rem;font-weight:700;display:inline-flex}.template-run-row .template-field{flex-direction:column;gap:.2rem;min-width:0;display:flex}.template-run-row .template-field .template-field-label{letter-spacing:.04em;text-transform:uppercase;color:var(--color-text-faint);font-size:.62rem;font-weight:600}.template-run-row .template-field select{background:var(--color-bg-base);border:1px solid var(--color-border-default);width:100%;min-width:140px;color:var(--color-text-main);font-family:var(--font-mono);border-radius:6px;min-width:0;padding:.3rem .45rem;font-size:.78rem}.template-run-row .template-field select:focus{border-color:#6366f180;outline:none}.template-run-row .template-field input[type=checkbox]{width:16px;height:16px;accent-color:var(--color-primary)}.template-run-row .template-field.template-check{flex-direction:row;justify-content:flex-start;align-items:center;gap:.4rem;padding-bottom:.3rem}.template-run-row .template-field.disabled{opacity:.45}.template-run-row .template-run-actions{align-items:flex-end;gap:.3rem;margin-left:auto;display:flex}.template-run-row .template-run-actions .template-run-btn{border:1px solid var(--color-border-default);width:28px;height:28px;color:var(--color-text-muted);cursor:pointer;transition:color var(--transition-fast), border-color var(--transition-fast);background:#ffffff0a;border-radius:6px;justify-content:center;align-items:center;padding:0;font-size:.8rem;display:inline-flex}.template-run-row .template-run-actions .template-run-btn:hover{color:var(--color-text-main);border-color:var(--color-border-strong)}.template-run-row .template-run-actions .template-run-btn.template-run-remove:hover{color:var(--color-rose);border-color:#f43f5e80}.template-run-row .template-run-sliders{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;display:grid}.template-run-row .template-slider-field{flex-direction:column;gap:.3rem;min-width:0;display:flex}.template-run-row .template-slider-header{justify-content:space-between;align-items:center;gap:.5rem;display:flex}.template-run-row .template-slider-header .template-slider-label{letter-spacing:.04em;text-transform:uppercase;color:var(--color-text-faint);font-size:.66rem;font-weight:600}.template-run-row .template-slider-header .template-slider-value{font-family:var(--font-mono);color:var(--color-cyan);font-size:.74rem;font-weight:700}.template-run-row .template-range{margin:0}.template-run-row .template-slider-hint{color:var(--color-text-faint);justify-content:space-between;font-size:.58rem;display:flex}.template-modal-footer{border-top:1px solid var(--color-border-default);justify-content:space-between;align-items:center;gap:.75rem;padding:1rem 1.25rem;display:flex}.template-modal-footer .template-modal-footer-right{gap:.5rem;display:flex}@media (width<=768px){.template-run-row .template-run-top{flex-direction:column;align-items:stretch}.template-run-row .template-run-index{align-self:flex-start}.template-run-row .template-field select{min-width:0}.template-run-row .template-run-actions{justify-content:flex-end;margin-left:0}.template-run-row .template-run-sliders{grid-template-columns:1fr;gap:.7rem}.template-progress{width:100%;margin-left:0}.template-modal{max-height:90vh}.template-modal-overlay{padding:.75rem}}
