:root{--bg-dark:#050510;--card:#ffffff08;--input-bg:#ffffff0d;--cyan:#00f3ff;--purple:#bc13fe;--text-main:#fff;--text-dim:#88a;--text-muted:#666;--border:#ffffff14;--accent:#a855f7;--accent2:#7c3aed;--font-main:"Inter", sans-serif;--font-mono:"JetBrains Mono", monospace}[data-theme=light]{--bg-dark:#e8edf5;--card:#fffffff2;--input-bg:#e8eef4;--cyan:#0e7490;--purple:#7c3aed;--text-main:#0f172a;--text-dim:#334155;--text-muted:#64748b;--border:#0000001a;--accent:#7c3aed}*,:before,:after{box-sizing:border-box}body{font-family:var(--font-main);background:var(--bg-dark);color:var(--text-main);margin:0;line-height:1.6;transition:background .3s,color .3s}a{color:inherit;text-decoration:none}.dashboard-container{max-width:1600px;margin:0 auto;padding:0 1.5rem 2rem}.calc-hero{padding:2rem 0 1.5rem}.breadcrumb{color:var(--text-muted);margin-bottom:.75rem;font-size:.78rem}.breadcrumb a{color:var(--text-muted)}.breadcrumb a:hover{color:var(--accent)}.bc-sep{margin:0 6px}.calc-title{margin:0 0 .4rem;font-family:Plus Jakarta Sans,sans-serif;font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800}.calc-subtitle{color:var(--text-dim);margin:0;font-size:1rem}.outer-tabs{background:#ffffff0a;border-radius:12px;flex-wrap:wrap;gap:4px;width:fit-content;margin-bottom:1.5rem;padding:4px;display:flex}[data-theme=light] .outer-tabs{background:#e8eef4}.outer-tab{color:var(--text-dim);font-family:var(--font-main);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-radius:8px;padding:8px 20px;font-size:.875rem;font-weight:500;transition:all .2s}.outer-tab.active{background:var(--accent);color:#fff;box-shadow:0 2px 8px #a855f74d}[data-theme=light] .outer-tab.active{background:#7c3aed}.outer-tab:hover:not(.active){color:var(--text-main);background:#ffffff0f}[data-theme=light] .outer-tab:hover:not(.active){background:#edf2f9}.tab-panel{display:none}.tab-panel.active{display:block}.calc-grid{grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:1.5rem;display:grid}@media (width<=900px){.calc-grid{grid-template-columns:minmax(0,1fr);overflow:hidden}}.input-card,.result-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:1.5rem}.input-card{border-left:3px solid var(--accent)}.result-card{border-left:3px solid var(--purple)}[data-theme=light] .input-card,[data-theme=light] .result-card{box-shadow:0 2px 12px #00000017}.card-title{align-items:center;gap:8px;margin:0 0 1.25rem;font-size:1rem;font-weight:600;display:flex}.card-icon{font-size:1.1rem}.input-group{margin-bottom:1.25rem}.input-group label{color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px;font-size:.8rem;font-weight:600;display:block}.glass-input{border:1px solid var(--border);background:var(--input-bg);width:100%;color:var(--text-main);font-family:var(--font-main);border-radius:8px;outline:none;padding:10px 14px;font-size:.95rem;transition:border-color .2s}.glass-input:focus{border-color:var(--accent)}.glass-input.small{width:80px}[data-theme=light] .glass-input{background:#e8eef4;border-color:#00000026}.input-with-adornment{position:relative}.input-with-adornment .glass-input{padding-right:52px}.adornment-right{color:var(--text-muted);pointer-events:none;font-size:.75rem;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.input-hint{color:var(--text-muted);margin:4px 0 0;font-size:.75rem}.chip-row{flex-wrap:wrap;gap:6px;display:flex}.chip{border:1px solid var(--border);background:var(--input-bg);color:var(--text-dim);cursor:pointer;text-align:center;border-radius:20px;padding:6px 14px;font-size:.8rem;line-height:1.3;transition:all .2s}.chip:hover{border-color:var(--accent);color:var(--accent)}.chip.active{border-color:var(--accent);color:var(--accent);background:#a855f726}.chip.wrong{color:#f87171;background:#ef444426;border-color:#ef444466}[data-theme=light] .chip{background:#f0f4f9;border-color:#0000001f}[data-theme=light] .chip.active{color:#7c3aed;background:#7c3aed1f;border-color:#7c3aed}[data-theme=light] .chip.wrong{color:#dc2626;background:#fff1f2;border-color:#ef44444d}.quick-presets{flex-wrap:wrap;align-items:center;gap:6px;margin-top:8px;display:flex}.preset-label{color:var(--text-muted);font-size:.72rem}.preset-mini{border:1px solid var(--border);color:var(--text-dim);cursor:pointer;background:0 0;border-radius:12px;padding:3px 10px;font-size:.72rem;transition:all .2s}.preset-mini:hover{border-color:var(--accent);color:var(--accent)}[data-theme=light] .preset-mini{background:#f0f4f9;border-color:#0000001f}.range-slider{-webkit-appearance:none;appearance:none;cursor:pointer;background:linear-gradient(to right, var(--accent) 0%, var(--accent) 29%, #ffffff1a 29%);border-radius:3px;outline:none;width:100%;height:6px}.range-slider::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);cursor:pointer;border-radius:50%;width:18px;height:18px;box-shadow:0 0 6px #a855f780}[data-theme=light] .range-slider{background:linear-gradient(90deg,#7c3aed 0% 29%,#d1d5db 29%)}.range-labels{color:var(--text-muted);justify-content:space-between;margin-top:4px;font-size:.7rem;display:flex}.gauge-wrap{justify-content:center;margin:.25rem 0 .75rem;display:flex}.speed-gauge{width:200px;height:115px;overflow:visible}.gauge-track{fill:none;stroke:#ffffff0d;stroke-width:12px;stroke-linecap:round}[data-theme=light] .gauge-track{stroke:#00000012}.gauge-zone{fill:none;stroke-width:10px;stroke-linecap:round}.gauge-needle{stroke:#fff;stroke-width:2.5px;stroke-linecap:round;transform-origin:100px 100px;transition:transform .45s cubic-bezier(.34,1.56,.64,1)}[data-theme=light] .gauge-needle{stroke:#1e293b}.gauge-dot{fill:var(--accent)}.gauge-wpm-text{fill:#88a;text-anchor:middle;font-family:JetBrains Mono,monospace;font-size:9px}[data-theme=light] .gauge-wpm-text{fill:#64748b}.gauge-zone-label{text-anchor:middle;font-family:JetBrains Mono,monospace;font-size:10px;font-weight:700;transition:fill .3s}.hero-result{text-align:center;margin:.5rem 0 1.25rem}.hero-value{font-family:var(--font-mono);color:var(--accent);font-size:clamp(2rem,5vw,3rem);font-weight:700;line-height:1}.hero-label{color:var(--text-dim);margin-top:4px;font-size:.85rem}[data-theme=light] .hero-value{color:#7c3aed}.stat-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:1.25rem;display:grid}.stat-cell{border:1px solid var(--border);text-align:center;background:#ffffff08;border-radius:10px;padding:10px}[data-theme=light] .stat-cell{background:#edf2f9;border-color:#0000001a}.stat-val{font-family:var(--font-mono);color:var(--text-main);font-size:1rem;font-weight:700}.stat-lbl{color:var(--text-muted);margin-top:2px;font-size:.7rem}.formula-strip{flex-wrap:wrap;gap:8px;margin-bottom:1rem;display:flex}.formula-pill{color:var(--accent);font-family:var(--font-mono);background:#a855f71a;border:1px solid #a855f740;border-radius:20px;padding:5px 14px;font-size:.75rem}[data-theme=light] .formula-pill{color:#7c3aed;background:#7c3aed1a;border-color:#7c3aed40}.alert-stack{flex-direction:column;gap:6px;margin-bottom:1rem;display:flex}.alert{border-radius:8px;align-items:center;gap:8px;padding:8px 14px;font-size:.8rem;display:flex}.alert-info{color:var(--text-dim);background:#a855f71a;border:1px solid #a855f733}.alert-warn{color:#fbbf24;background:#fbbf241a;border:1px solid #fbbf2433}[data-theme=light] .alert-info{color:#4c1d95;background:#f5f3ff;border-color:#7c3aed33}[data-theme=light] .alert-warn{color:#92400e;background:#fffbeb;border-color:#b4530933}.action-bar{gap:8px;margin-top:1rem;display:flex}.action-btn{border:1px solid var(--border);background:var(--input-bg);color:var(--text-dim);cursor:pointer;border-radius:8px;flex:1;padding:9px;font-size:.8rem;transition:all .2s}.action-btn:hover{border-color:var(--accent);color:var(--accent)}[data-theme=light] .action-btn{color:var(--text-dim);background:#f0f4f9;border-color:#0000001f}.chart-outer{background:var(--card);border:1px solid var(--border);border-radius:16px;margin-bottom:1.5rem;padding:1.5rem}[data-theme=light] .chart-outer{background:#fffffff2;box-shadow:0 2px 12px #0000000f}.section-title{margin:0 0 1rem;font-size:.9rem;font-weight:600}.inner-tab-row{flex-wrap:wrap;gap:4px;margin-bottom:1rem;display:flex}.inner-tab{border:1px solid var(--border);background:var(--input-bg);color:var(--text-dim);font-size:.78rem;font-family:var(--font-main);cursor:pointer;border-radius:8px;padding:5px 16px;font-weight:500;transition:all .2s}.inner-tab.active{border-color:var(--accent);color:var(--accent);background:#a855f726}.inner-tab:hover:not(.active){color:var(--text-main);border-color:#a855f766}.inner-panel{display:none}.inner-panel.active{display:block}[data-theme=light] .inner-tab{background:#f0f4f9;border-color:#0000001f}[data-theme=light] .inner-tab.active{color:#7c3aed;background:#7c3aed1a;border-color:#7c3aed}[data-theme=light] .inner-tab:hover:not(.active){color:var(--text-main);background:#edf2f9}.speed-test-expander{background:var(--card);border:1px solid var(--border);border-radius:14px;margin-bottom:1.5rem;overflow:hidden}[data-theme=light] .speed-test-expander{background:#fff;box-shadow:0 1px 4px #0000000f}.spe-summary{cursor:pointer;align-items:center;gap:12px;padding:1rem 1.25rem;list-style:none;display:flex}.spe-summary::-webkit-details-marker{display:none}.spe-title{color:var(--text-main);font-size:.9rem;font-weight:600}.spe-hint{color:var(--text-muted);flex:1;font-size:.78rem}.spe-chevron{color:var(--text-muted);font-size:1rem;font-weight:700;transition:transform .2s;display:inline-block}.speed-test-expander[open] .spe-chevron{transform:rotate(90deg)}.spe-body{border-top:1px solid var(--border);padding:0 1.25rem 1.25rem}[data-theme=light] .spe-body{border-top-color:#00000014}.spe-passage-chips{flex-wrap:wrap;gap:6px;margin-bottom:1rem;padding-top:1rem;display:flex}.spe-passage-box{background:var(--input-bg);border:1px solid var(--border);color:var(--text-dim);border-radius:10px;min-height:72px;margin-bottom:1rem;padding:1rem;font-size:.875rem;font-style:italic;line-height:1.85}[data-theme=light] .spe-passage-box{color:#334155;background:#edf2f9;border-color:#0000001a}.spe-controls{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.spe-timer{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.spe-countdown{font-family:var(--font-mono);color:var(--accent);min-width:44px;font-size:1.3rem;font-weight:700}[data-theme=light] .spe-countdown{color:#7c3aed}.spe-result{background:#a855f712;border:1px solid #a855f72e;border-radius:10px;margin-top:1rem;padding:1rem}[data-theme=light] .spe-result{background:#f5f3ff;border-color:#7c3aed33}.spe-wpm-badge{font-family:var(--font-mono);color:var(--accent);margin-bottom:.75rem;font-size:1.3rem;font-weight:700}[data-theme=light] .spe-wpm-badge{color:#7c3aed}.spe-comp-q{margin-bottom:.75rem}.spe-comp-q p{color:var(--text-main);margin:0 0 .5rem;font-size:.85rem;font-weight:600}.spe-options{flex-wrap:wrap;gap:6px;margin-bottom:6px;display:flex}.spe-opt-btn{padding:5px 12px!important;font-size:.78rem!important}.spe-answer-feedback{margin-top:4px;font-size:.8rem}.spe-apply-row{margin-top:.75rem}.book-db-expander{border:1px solid var(--border);border-radius:10px;margin-top:8px;overflow:hidden}[data-theme=light] .book-db-expander{background:#fff}.bdb-summary{cursor:pointer;color:var(--accent);align-items:center;gap:6px;padding:8px 14px;font-size:.8rem;font-weight:600;list-style:none;display:flex}.bdb-summary::-webkit-details-marker{display:none}[data-theme=light] .bdb-summary{color:#7c3aed}.bdb-body{border-top:1px solid var(--border);padding:8px 12px 12px}[data-theme=light] .bdb-body{border-top-color:#00000014}.bdb-cats{margin:8px 0 10px}.bdb-search{margin-bottom:8px}.bdb-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:6px;max-height:220px;display:grid;overflow-y:auto}.bdb-card{background:var(--input-bg);border:1px solid var(--border);text-align:left;cursor:pointer;border-radius:8px;width:100%;padding:8px 10px;transition:all .2s}.bdb-card:hover{border-color:var(--accent);background:#a855f714}[data-theme=light] .bdb-card{background:#f0f4f9;border-color:#0000001a}[data-theme=light] .bdb-card:hover{background:#7c3aed14;border-color:#7c3aed}.bdb-title{color:var(--text-main);margin-bottom:1px;font-size:.76rem;font-weight:600;line-height:1.3}.bdb-author{color:var(--text-muted);font-size:.67rem}.bdb-time{font-family:var(--font-mono);color:var(--accent);margin-top:3px;font-size:.7rem}[data-theme=light] .bdb-time{color:#7c3aed}.scenario-grid{grid-template-columns:repeat(3,1fr);gap:1rem;margin-bottom:1.5rem;display:grid}@media (width<=700px){.scenario-grid{grid-template-columns:minmax(0,1fr);overflow:hidden}}.scenario-card{border:1px solid var(--border);text-align:center;border-radius:14px;padding:1.25rem}.scenario-card.bear{background:#ef44440d;border-color:#ef44444d}.scenario-card.base{background:#a855f714;border-color:#a855f74d}.scenario-card.bull{background:#10b9810d;border-color:#10b9814d}[data-theme=light] .scenario-card.bear{background:#fff1f2;border-color:#ef444433}[data-theme=light] .scenario-card.base{background:#f5f3ff;border-color:#7c3aed33}[data-theme=light] .scenario-card.bull{background:#f0fdf4;border-color:#10b98133}.sc-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-size:.75rem}.sc-wpm{margin:4px 0;font-size:1.1rem;font-weight:700}.sc-time{font-family:var(--font-mono);color:var(--accent);font-size:1.4rem;font-weight:700}[data-theme=light] .sc-time{color:#7c3aed}.sc-desc{color:var(--text-muted);margin-top:4px;font-size:.75rem}.section-box{background:var(--card);border:1px solid var(--border);border-radius:16px;margin-bottom:1.5rem;padding:1.5rem}[data-theme=light] .section-box{background:#fffffff2;box-shadow:0 2px 12px #0000000f}.section-desc{color:var(--text-muted);margin:-.5rem 0 1rem;font-size:.8rem}.data-table{border-collapse:collapse;width:100%;font-size:.85rem}.data-table th{color:var(--text-dim);text-transform:uppercase;text-align:left;background:#a855f71a;padding:10px 12px;font-size:.75rem}.data-table td{border-bottom:1px solid var(--border);color:var(--text-main);padding:9px 12px}.data-table tr:hover td{background:#ffffff05}[data-theme=light] .data-table th{color:#475569;background:#edf2f9}[data-theme=light] .data-table td{border-color:#0000000f}[data-theme=light] .data-table tr:hover td{background:#f8fafc}.genre-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;display:grid}.genre-card{background:#a855f70f;border:1px solid #a855f726;border-radius:12px;padding:.9rem 1rem}[data-theme=light] .genre-card{background:#7c3aed0d;border-color:#7c3aed26}.genre-icon{margin-bottom:4px;font-size:1.4rem}.genre-name{color:var(--text-main);margin-bottom:1px;font-size:.85rem;font-weight:700}.genre-time{font-family:var(--font-mono);color:var(--accent);font-size:1rem;font-weight:700}[data-theme=light] .genre-time{color:#7c3aed}.genre-desc{color:var(--text-muted);margin-top:3px;font-size:.68rem;line-height:1.4}.matrix-wrap{overflow-x:auto}.matrix-table{border-collapse:collapse;width:100%;min-width:420px;font-size:.8rem}.matrix-table th{color:var(--text-dim);text-transform:uppercase;text-align:center;white-space:nowrap;background:#a855f71a;padding:8px 10px;font-size:.7rem}.matrix-table td{text-align:center;border:1px solid var(--border);font-family:var(--font-mono);padding:8px 10px;font-size:.8rem}.matrix-table .row-label{text-align:right;font-family:var(--font-mono);color:var(--text-dim);white-space:nowrap;padding-right:12px;font-weight:600}.matrix-table tr.current-row .row-label{color:var(--accent)}.matrix-table tr.current-row td{border-top-color:#a855f766;border-bottom-color:#a855f766}[data-theme=light] .matrix-table th{color:#475569;background:#edf2f9}[data-theme=light] .matrix-table td{border-color:#00000014}[data-theme=light] .matrix-table tr.current-row .row-label{color:#7c3aed}.heat-0{color:#f87171;background:#ef44441f}.heat-1{color:#fb923c;background:#fb923c1f}.heat-2{color:#eab308;background:#eab3081a}.heat-3{color:#4ade80;background:#22c55e1a}.heat-4{color:#34d399;background:#10b9811a}[data-theme=light] .heat-0{color:#dc2626;background:#fff1f2}[data-theme=light] .heat-1{color:#ea580c;background:#fff7ed}[data-theme=light] .heat-2{color:#ca8a04;background:#fefce8}[data-theme=light] .heat-3{color:#16a34a;background:#f0fdf4}[data-theme=light] .heat-4{color:#059669;background:#ecfdf5}.planner-header{margin-bottom:1.5rem}.planner-header h3{margin:0 0 .4rem;font-size:1.1rem;font-weight:700}.plan-subtitle{color:var(--text-dim);margin:0;font-size:.875rem}.planner-add{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:1.25rem;display:flex}.planner-add .glass-input{flex:1;min-width:140px}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;white-space:nowrap;font-weight:600;font-family:var(--font-main);border:none;border-radius:8px;padding:10px 20px;font-size:.875rem;transition:opacity .2s}.btn-primary:hover{opacity:.85}.book-list{flex-direction:column;gap:8px;margin-bottom:1.5rem;display:flex}.book-item{background:var(--card);border:1px solid var(--border);border-radius:10px;justify-content:space-between;align-items:center;padding:12px 16px;display:flex}[data-theme=light] .book-item{background:#fffffff2;box-shadow:0 1px 4px #0000000f}.book-name{font-size:.9rem;font-weight:600}.book-time{font-family:var(--font-mono);color:var(--accent);font-size:.85rem}[data-theme=light] .book-time{color:#7c3aed}.book-remove{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:2px 6px;font-size:1rem;transition:color .2s}.book-remove:hover{color:#ef4444}.planner-summary{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:1.5rem}[data-theme=light] .planner-summary{background:#fffffff2;box-shadow:0 2px 12px #0000000f}.plan-stat-grid{grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:1.5rem;display:grid}@media (width<=600px){.plan-stat-grid{grid-template-columns:repeat(2,1fr)}}.plan-stat{text-align:center;border:1px solid var(--border);background:#ffffff08;border-radius:10px;padding:12px}[data-theme=light] .plan-stat{background:#edf2f9}.plan-val{font-family:var(--font-mono);color:var(--accent);font-size:1.2rem;font-weight:700}[data-theme=light] .plan-val{color:#7c3aed}.plan-lbl{color:var(--text-muted);margin-top:2px;font-size:.7rem}.reading-goal{border-top:1px solid var(--border);padding-top:1.25rem}.reading-goal h4{margin:0 0 1rem;font-size:.9rem}.goal-row{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:1rem;display:flex}.goal-row label{color:var(--text-dim);font-size:.85rem}.goal-result{color:var(--text-dim);background:#a855f712;border:1px solid #a855f726;border-radius:8px;padding:12px;font-size:.875rem;line-height:1.6}[data-theme=light] .goal-result{color:#374151;background:#f5f3ff;border-color:#7c3aed26}.plan-section-title{color:var(--text-main);margin:0 0 .75rem;font-size:.9rem;font-weight:700}.planner-book-browse{margin-top:1.5rem}.planner-book-browse .bdb-grid{max-height:200px}.planner-roadmap{background:var(--card);border:1px solid var(--border);border-radius:14px;margin-top:1.5rem;padding:1.25rem}[data-theme=light] .planner-roadmap{background:#fff;box-shadow:0 2px 12px #0000000f}.page-sections-outer{max-width:1600px;margin:0 auto;padding:0 1.5rem 3rem}.section-h2{margin:0 0 1.25rem;font-family:Plus Jakarta Sans,sans-serif;font-size:1.4rem;font-weight:700}.how-section{margin-bottom:3rem}.how-steps{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.25rem;display:grid}.how-step{background:var(--card);border:1px solid var(--border);border-radius:14px;align-items:flex-start;gap:16px;padding:1.25rem;display:flex}[data-theme=light] .how-step{background:#fff;box-shadow:0 1px 4px #0000000f}.step-num{background:var(--accent);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:.9rem;font-weight:700;display:flex}.step-body strong{margin-bottom:4px;display:block}.step-body p{color:var(--text-dim);margin:0;font-size:.85rem}.formula-pills2{margin-bottom:3rem}.pill-row{flex-wrap:wrap;gap:10px;display:flex}.fpill{color:var(--accent);font-family:var(--font-mono);background:#a855f71a;border:1px solid #a855f740;border-radius:30px;padding:8px 18px;font-size:.8rem}[data-theme=light] .fpill{color:#7c3aed;background:#7c3aed14;border-color:#7c3aed33}.gloss-section2{margin-bottom:3rem}.gloss-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;display:grid}.gloss-item{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1rem 1.25rem}[data-theme=light] .gloss-item{background:#fff;box-shadow:0 1px 4px #0000000f}.gloss-item strong{color:var(--accent);margin-bottom:4px;font-size:.9rem;display:block}[data-theme=light] .gloss-item strong{color:#7c3aed}.gloss-item p{color:var(--text-dim);margin:0;font-size:.82rem;line-height:1.5}.ex-section2{margin-bottom:3rem}.ex-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;display:grid}.ex-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1.25rem}[data-theme=light] .ex-card{background:#fff;box-shadow:0 1px 4px #0000000f}.ex-title{margin-bottom:6px;font-size:.9rem;font-weight:600}.ex-body{color:var(--text-dim);font-size:.82rem;line-height:1.5}.calc-article{color:var(--text-dim);margin-bottom:3rem;line-height:1.8}.calc-article h2{color:var(--text-main);margin-bottom:1rem;font-family:Plus Jakarta Sans,sans-serif;font-size:1.4rem}.calc-article h3{color:var(--text-main);margin:1.5rem 0 .5rem;font-size:1.05rem}.calc-article p{margin:0 0 1rem;font-size:.9rem}.faq-section{margin-bottom:3rem}.faq-list{flex-direction:column;display:flex}.faq-item{border-bottom:1px solid #ffffff0f}.faq-item__question{cursor:pointer;color:var(--text-main);user-select:none;justify-content:space-between;align-items:center;padding:14px 4px;font-size:.9rem;font-weight:600;list-style:none;transition:color .2s;display:flex}.faq-item__question::-webkit-details-marker{display:none}.faq-item__question:after{content:"+";font-family:var(--font-mono);color:var(--text-dim);flex-shrink:0;margin-left:16px;font-size:1.1rem;transition:color .2s}.faq-item[open] .faq-item__question:after{content:"−";color:var(--accent)}.faq-item__question:hover{color:var(--accent)}.faq-item__answer{color:var(--text-dim);padding:0 4px 14px;font-size:.85rem;line-height:1.75}[data-theme=light] .faq-list{gap:8px}[data-theme=light] .faq-item{background:#fff;border:1px solid #0000001a;border-radius:10px;overflow:hidden;box-shadow:0 1px 4px #0000000f}[data-theme=light] .faq-item[open]{border-color:#7c3aed66 #7c3aed66 #7c3aed66 #7c3aed;border-left-style:solid;border-left-width:3px}[data-theme=light] .faq-item__question{color:#0f172a;padding:14px 16px}[data-theme=light] .faq-item__answer{color:#475569;border-top:1px solid #0000000f;padding:12px 16px 16px}.calc-related{margin-bottom:2rem}.related-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;display:grid}.related-card{background:var(--card);border:1px solid var(--border);border-radius:10px;align-items:center;gap:10px;padding:12px 16px;font-size:.85rem;transition:all .2s;display:flex}.related-card:hover{border-color:var(--accent);background:#a855f70f}[data-theme=light] .related-card{background:#fff}[data-theme=light] .related-card:hover{background:#f5f3ff;border-color:#7c3aed}.rel-icon{font-size:1.2rem}.calc-page-footer{border-top:1px solid var(--border);padding:2rem 0 1rem}.calc-page-footer__inner{max-width:1600px;margin:0 auto;padding:0 1.5rem}.calc-page-footer .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem;margin-bottom:2rem;display:grid}@media (width<=700px){.calc-page-footer .footer-grid{grid-template-columns:1fr 1fr}}.footer-logo{height:32px}.footer-brand-name{letter-spacing:1.5px;margin-top:6px;font-size:.85rem;font-weight:700;display:block}.footer-tagline{color:var(--text-muted);margin:4px 0 0;font-size:.78rem}.footer-col-title{text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-bottom:8px;font-size:.75rem;display:block}.footer-link{color:var(--text-dim);margin-bottom:5px;font-size:.82rem;display:block}.footer-link:hover{color:var(--accent)}.footer-bottom{color:var(--text-muted);border-top:1px solid var(--border);padding-top:1rem;font-size:.75rem}.back-to-top{z-index:900;border:1px solid var(--border);background:var(--card);width:40px;height:40px;color:var(--text-dim);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;font-size:1.1rem;transition:all .2s;display:none;position:fixed;bottom:24px;right:24px}.back-to-top:hover{border-color:var(--accent);color:var(--accent)}.back-to-top.visible{display:flex}.toast{z-index:9999;border-radius:8px;padding:10px 20px;font-size:.875rem;animation:.3s fadeInUp;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}.toast-success{color:#34d399;background:#1e293b;border:1px solid #10b98166}.toast-warn{color:#fbbf24;background:#1e293b;border:1px solid #fbbf2466}@keyframes fadeInUp{0%{opacity:0;transform:translate(-50%)translateY(10px)}to{opacity:1;transform:translate(-50%)translateY(0)}}.skip-link{position:absolute;left:-9999px}.skip-link:focus{position:static}