:root{--im-ink:#0f172a;--im-accent:#f59e0b;--im-card-bd:#1f293729;--font-display:"Bricolage Grotesque",system-ui,sans-serif;--font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace}.prac-shell{min-height:100vh}.prac-sidebar-wrap{z-index:40;padding:12px;display:flex;position:fixed;top:0;bottom:0;left:0}.prac-sidebar{-webkit-backdrop-filter:blur(24px)saturate(180%);background:#ffffffb8;border:1px solid #0f172a12;border-radius:1.25rem;flex-direction:column;width:264px;transition:width .22s cubic-bezier(.4,0,.2,1);display:flex;overflow:hidden;box-shadow:0 10px 40px -12px #0f172a1f,0 2px 8px -2px #0f172a0d}.prac-shell.collapsed .prac-sidebar{width:76px}.prac-sb-brand{flex-shrink:0;align-items:center;gap:.7rem;padding:1.1rem 1.1rem 1rem;display:flex}.prac-shell.collapsed .prac-sb-brand{justify-content:center;padding:1.1rem 0 1rem}.prac-sb-logo{flex-shrink:0;width:34px;height:34px;display:block;position:relative}.prac-sb-logo-glow{filter:blur(7px);opacity:.25;background:linear-gradient(135deg,#f59e0b,#f97316,#ec4899);border-radius:12px;transition:opacity .3s;position:absolute;inset:-3px}.prac-sb-logo:hover .prac-sb-logo-glow{opacity:.45}.prac-sb-logo img{-o-object-fit:cover;object-fit:cover;border-radius:10px;width:34px;height:34px;display:block;position:relative}.prac-shell.collapsed .prac-sb-logo,.prac-shell.collapsed .prac-sb-logo img{width:32px;height:32px}.prac-sb-brand-text{min-width:0}.prac-sb-title{font-family:var(--font-display);color:var(--im-ink);letter-spacing:-.015em;white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:.95rem;font-weight:700;overflow:hidden}.prac-sb-subtitle{color:#94a3b8;white-space:nowrap;text-overflow:ellipsis;margin:1px 0 0;font-size:.72rem;overflow:hidden}.prac-sb-nav{flex-direction:column;flex:1;gap:.2rem;padding:.5rem .6rem;display:flex}.prac-sb-navlabel{letter-spacing:.12em;text-transform:uppercase;color:#b0b8c4;padding:.5rem .65rem .35rem;font-size:.66rem;font-weight:700}.prac-sb-item{cursor:pointer;font:inherit;text-align:left;background:0 0;border:none;border-radius:.85rem;align-items:center;gap:.7rem;width:100%;padding:.55rem .6rem;transition:background .16s;display:flex;position:relative}.prac-shell.collapsed .prac-sb-item{justify-content:center;padding:.55rem 0}.prac-sb-item:not(.active):hover{background:#0f172a0a}.prac-sb-item.active{background:linear-gradient(135deg,#f59e0b24,#f59e0b0f)}.prac-sb-item-ic{color:#64748b;background:#0f172a0d;border-radius:.7rem;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;transition:all .18s;display:flex}.prac-sb-item:not(.active):hover .prac-sb-item-ic{color:#334155}.prac-sb-item.active .prac-sb-item-ic{color:#fff;background:linear-gradient(135deg,#fbbf24,#f59e0b);box-shadow:0 4px 12px -3px #f59e0b99}.prac-sb-item-text{flex-direction:column;flex:1;gap:1px;min-width:0;display:flex}.prac-sb-item-label{color:#475569;white-space:nowrap;text-overflow:ellipsis;font-size:.875rem;font-weight:600;transition:color .16s;overflow:hidden}.prac-sb-item.active .prac-sb-item-label{color:#92400e}.prac-sb-item-desc{color:#a0a9b8;white-space:nowrap;text-overflow:ellipsis;font-size:.72rem;overflow:hidden}.prac-sb-item.active .prac-sb-item-desc{color:#b45309;opacity:.85}.prac-sb-item-active-dot{background:var(--im-accent);border-radius:50%;flex-shrink:0;width:7px;height:7px;box-shadow:0 0 0 3px #f59e0b2e}.prac-sb-item-ext{color:#b0b8c4;flex-shrink:0;display:flex}.prac-sb-item:hover .prac-sb-item-ext,html.dark .prac-sb-item-ext{color:#64748b}.prac-sb-foot{border-top:1px solid #0f172a12;flex-direction:column;gap:.15rem;margin:0 .5rem .4rem;padding:.6rem;display:flex}.prac-sb-theme{cursor:pointer;font:inherit;background:0 0;border:none;border-radius:.75rem;align-items:center;gap:.7rem;padding:.45rem .5rem;transition:background .16s;display:flex}.prac-sb-theme:hover{background:#0f172a0a}.prac-shell.collapsed .prac-sb-theme{justify-content:center}.prac-sb-toggle{background:#e2e8f0;border-radius:9999px;flex-shrink:0;width:36px;height:20px;padding:2px;transition:background .2s;display:inline-flex}.prac-sb-toggle-knob{color:#f59e0b;background:#fff;border-radius:50%;justify-content:center;align-items:center;width:16px;height:16px;transition:transform .2s;display:flex;box-shadow:0 1px 3px #00000040}html.dark .prac-sb-toggle{background:#f59e0b}html.dark .prac-sb-toggle-knob{color:#d97706;transform:translate(16px)}.prac-sb-foot-label{color:#64748b;font-size:.85rem;font-weight:500}.prac-sb-foot-btn{cursor:pointer;font:inherit;color:#64748b;background:0 0;border:none;border-radius:.75rem;align-items:center;gap:.7rem;width:100%;padding:.45rem .5rem;font-size:.85rem;font-weight:500;text-decoration:none;transition:all .16s;display:flex}.prac-shell.collapsed .prac-sb-foot-btn{justify-content:center}.prac-sb-foot-btn:hover{color:#334155;background:#0f172a0a}.prac-sb-foot-ic{background:#0f172a0d;border-radius:.6rem;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.prac-main{min-height:100vh;padding-left:288px;transition:padding-left .22s cubic-bezier(.4,0,.2,1)}.prac-shell.collapsed .prac-main{padding-left:100px}.prac-main-full{padding-left:0!important}.prac-main .sqlp-workspace,.prac-main .sqlp-selection{padding-top:2rem}html.dark .prac-sidebar{background:#0f172ab8;border-color:#94a3b81f;box-shadow:0 10px 40px -12px #0006,0 2px 8px -2px #0000004d}html.dark .prac-sb-title{color:#f9fafb}html.dark .prac-sb-subtitle,html.dark .prac-sb-navlabel{color:#64748b}html.dark .prac-sb-item:not(.active):hover{background:#ffffff0d}html.dark .prac-sb-item.active{background:linear-gradient(135deg,#f59e0b33,#f59e0b14)}html.dark .prac-sb-item-ic{color:#94a3b8;background:#ffffff0f}html.dark .prac-sb-item:not(.active):hover .prac-sb-item-ic,html.dark .prac-sb-item-label{color:#cbd5e1}html.dark .prac-sb-item.active .prac-sb-item-label{color:#fcd34d}html.dark .prac-sb-item-desc{color:#64748b}html.dark .prac-sb-item.active .prac-sb-item-desc{color:#d97706}html.dark .prac-sb-foot{border-color:#94a3b81f}html.dark .prac-sb-theme:hover,html.dark .prac-sb-foot-btn:hover{color:#e2e8f0;background:#ffffff0d}html.dark .prac-sb-foot-label,html.dark .prac-sb-foot-btn{color:#94a3b8}html.dark .prac-sb-foot-ic{background:#ffffff0f}@media (max-width:860px){.prac-sidebar-wrap{display:none}.prac-main,.prac-shell.collapsed .prac-main{padding-left:0}.prac-main .sqlp-workspace,.prac-main .sqlp-selection{padding-top:1.5rem}}.sqlp-selection{max-width:900px;margin:0 auto;padding:6.5rem 1.5rem 4rem}.sqlp-hero{text-align:center;margin-bottom:2rem}.sqlp-hero-ic{color:#fff;background:linear-gradient(135deg,#fbbf24,#f59e0b);border-radius:18px;justify-content:center;align-items:center;width:60px;height:60px;margin-bottom:1rem;display:inline-flex;box-shadow:0 12px 28px -10px #f59e0b80}.sqlp-hero-title{font-family:var(--font-display);letter-spacing:-.03em;color:var(--im-ink);margin:0 0 .6rem;font-size:clamp(1.9rem,4vw,2.6rem);font-weight:800}.sqlp-hero-sub{color:#64748b;max-width:52ch;margin:0 auto;font-size:1rem;line-height:1.55}.sqlp-card{border:1px solid var(--im-card-bd);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffd9;border-radius:1.5rem;padding:1.75rem;box-shadow:0 20px 50px -25px #0003}.sqlp-stepper{background:#fefce8b3;border:1px solid #f59e0b33;border-radius:1rem;align-items:center;gap:.5rem;margin-bottom:1.75rem;padding:.85rem 1rem;display:flex}.sqlp-step{cursor:pointer;font:inherit;color:#94a3b8;background:0 0;border:none;border-radius:9999px;align-items:center;gap:.5rem;padding:.3rem .5rem;transition:background .16s;display:flex}.sqlp-step:hover{background:#f59e0b1a}.sqlp-step-dot{color:#64748b;background:#0f172a14;border-radius:9999px;justify-content:center;align-items:center;width:26px;height:26px;font-size:.8rem;font-weight:700;transition:all .2s;display:flex}.sqlp-step.active .sqlp-step-dot{background:var(--im-accent);color:#fff}.sqlp-step.done .sqlp-step-dot{color:#fff;background:#10b981}.sqlp-step-label{font-size:.85rem;font-weight:600}.sqlp-step.active .sqlp-step-label{color:var(--im-ink)}.sqlp-step.done .sqlp-step-label{color:#475569}.sqlp-step-line{background:#0f172a1a;border-radius:2px;flex:1;height:2px}.sqlp-step-line.done{background:#10b981}.sqlp-step-head{font-family:var(--font-display);letter-spacing:-.01em;color:var(--im-ink);align-items:center;gap:.6rem;font-size:1.15rem;font-weight:700;display:flex}.sqlp-step-n{letter-spacing:.08em;text-transform:uppercase;color:var(--im-accent);background:#f59e0b1f;border-radius:9999px;padding:.15rem .5rem;font-size:.7rem;font-weight:700}.sqlp-step-desc{color:#64748b;margin:.4rem 0 1.25rem;font-size:.875rem}.sqlp-topic-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:.75rem;display:grid}.sqlp-topic{text-align:left;cursor:pointer;font:inherit;background:0 0;border:2px solid #f59e0b66;border-radius:1rem;align-items:flex-start;gap:.7rem;padding:.85rem .95rem;transition:all .18s;display:flex;position:relative}.sqlp-topic:hover{background:#f59e0b14;border-color:#f59e0bb3;transform:translateY(-2px);box-shadow:0 10px 22px -12px #f59e0b80}.sqlp-topic.on{border-color:var(--im-accent);background:linear-gradient(#fef3c7cc,#fde68a80);box-shadow:0 8px 20px -10px #f59e0b66}.sqlp-topic-ic{color:#b45309;background:#f59e0b1f;border-radius:.6rem;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;display:flex}.sqlp-topic.on .sqlp-topic-ic{color:#92400e;background:#f59e0b4d}.sqlp-topic-text{flex-direction:column;flex:1;gap:.1rem;min-width:0;display:flex}.sqlp-topic-name{color:var(--im-ink);font-size:.875rem;font-weight:600}.sqlp-topic-desc{color:#64748b;font-size:.75rem;line-height:1.4}.sqlp-topic-check{color:#fff;border:2px solid #f59e0b99;border-radius:9999px;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;display:flex}.sqlp-topic.on .sqlp-topic-check{background:var(--im-accent);border-color:var(--im-accent)}.sqlp-level-grid{grid-template-columns:repeat(3,1fr);gap:.75rem;display:grid}.sqlp-level{text-align:left;cursor:pointer;font:inherit;background:0 0;border:2px solid #f59e0b66;border-radius:1rem;flex-direction:column;gap:.3rem;padding:1.1rem 1.15rem;transition:transform .18s,box-shadow .18s,border-color .18s,background .18s;display:flex}.sqlp-level:hover{background:#f59e0b14;border-color:#f59e0bb3;transform:translateY(-2px);box-shadow:0 10px 22px -12px #f59e0b80}.sqlp-level.on{border-color:var(--im-accent);background:linear-gradient(#fef3c7cc,#fde68a80);box-shadow:0 8px 20px -10px #f59e0b66}.sqlp-level-name{font-family:var(--font-display);color:var(--im-ink);font-size:1.05rem;font-weight:700}.sqlp-level-desc{color:#64748b;font-size:.78rem;line-height:1.4}.sqlp-dialect-row{flex-wrap:wrap;gap:.6rem;display:flex}.sqlp-dialect{cursor:pointer;font:inherit;color:#b45309;background:0 0;border:2px solid #f59e0b66;border-radius:9999px;padding:.6rem 1.1rem;font-size:.875rem;font-weight:600;transition:all .18s}.sqlp-dialect:hover{background:#f59e0b14;border-color:#f59e0bb3;transform:translateY(-2px);box-shadow:0 10px 22px -12px #f59e0b80}.sqlp-dialect.on{border-color:var(--im-accent);background:var(--im-accent);color:#fff}.sqlp-actions{border-top:1px solid var(--im-card-bd);align-items:center;gap:.75rem;margin-top:1.75rem;padding-top:1.5rem;display:flex}.btn{cursor:pointer;color:#422006;text-shadow:0 1px #ffffff4d;background:linear-gradient(#fde047,#f59e0b);border:none;border-radius:9999px;outline:none;justify-content:center;align-items:center;gap:.5rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;text-decoration:none;transition:all .3s;display:inline-flex;position:relative;overflow:hidden;box-shadow:inset 0 1px 1px #fef9c3,0 3px 5px #0000001a}.btn:before{content:"";background:linear-gradient(90deg,#fff0 0%,#ffffff80 50%,#fff0 100%);width:20%;height:100%;transition:left .7s ease-in-out;position:absolute;top:0;left:-50%;transform:skew(-25deg)}.btn:hover{background:linear-gradient(#facc15,#d97706);transform:translateY(-1px)scale(1.02);box-shadow:inset 0 1px 1px #fef9c3,0 4px 8px #00000026,0 0 20px #fbbf2480}.btn:hover:before{left:150%}.btn:active{transform:translateY(0)scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:inset 0 1px 1px #fef9c3,0 3px 5px #0000001a}.btn-lg{padding:.85rem 1.8rem;font-size:1.05rem}.btn-sm{padding:.4rem 1rem;font-size:.85rem}.btn-outline{color:#f59e0b;text-shadow:none;background:0 0;box-shadow:inset 0 0 0 2px #f59e0b}.btn-outline:hover{color:#422006;background:linear-gradient(#fde047,#f59e0b);box-shadow:inset 0 1px 1px #fef9c3,0 4px 8px #00000026,0 0 20px #fbbf2480}.btn-outline:hover:before{background:linear-gradient(90deg,#fff0 0%,#fff6 50%,#fff0 100%)}.btn-ghost{color:#1f2937;box-shadow:none;text-shadow:none;background:0 0;font-weight:600}.btn-ghost:hover{color:#1f2937;box-shadow:none;background:#1f29370d;transform:none}html.dark .btn-ghost{color:#e2e8f0}html.dark .btn-ghost:hover{color:#f9fafb;background:#ffffff14}.sqlp-workspace{box-sizing:border-box;flex-direction:column;max-width:none;height:100vh;margin:0;padding:.3rem .75rem .75rem;display:flex}.sqlp-ws-top{flex-wrap:nowrap;justify-content:space-between;align-items:center;gap:.85rem;margin-bottom:1rem;display:flex}.sqlp-ws-back{color:#64748b;border:1px solid var(--im-card-bd);cursor:pointer;white-space:nowrap;background:#fff9;border-radius:9999px;flex-shrink:0;align-items:center;gap:.4rem;padding:.4rem .75rem;font-family:inherit;font-size:.82rem;font-weight:500;display:inline-flex}.sqlp-ws-back:hover{color:#b45309;background:#f59e0b14;border-color:#f59e0b4d}.sqlp-ws-meta{flex:1;align-items:center;gap:.5rem;min-width:0;display:flex;overflow:hidden}.sqlp-ws-chip{color:#475569;white-space:nowrap;background:#0f172a0d;border-radius:9999px;flex-shrink:0;padding:.2rem .6rem;font-size:.72rem;font-weight:600}.sqlp-ws-chip.muted{color:#94a3b8}.sqlp-ws-credits{color:#b45309;white-space:nowrap;flex-shrink:0;align-items:center;gap:.35rem;font-size:.8rem;font-weight:600;display:inline-flex}.sqlp-ws-left{align-items:center;gap:.75rem;display:flex}.sqlp-ws-back-icon{border:1px solid var(--im-card-bd);color:#64748b;cursor:pointer;background:#ffffffb3;border-radius:.75rem;justify-content:center;align-items:center;width:38px;height:38px;transition:all .16s;display:flex}.sqlp-ws-back-icon:hover{color:#b45309;background:#f59e0b14;border-color:#f59e0b4d}.sqlp-ws-topic{color:#b45309;background:#f59e0b29;border:none;border-radius:.75rem;padding:.45rem .7rem;font-size:.7rem;font-weight:700}.sqlp-ws-qnum{color:#fff;background:var(--im-accent);border-radius:9999px;padding:.3rem .6rem;font-size:.72rem;font-weight:700}.sqlp-ws-right{align-items:center;gap:.5rem;display:flex}.sqlp-ws-top{position:relative}.sqlp-ws-ctas{align-items:center;gap:.5rem;display:flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.sqlp-ws-icon{border:1px solid var(--im-card-bd);color:#64748b;cursor:pointer;background:#ffffffb3;border-radius:.75rem;justify-content:center;align-items:center;width:38px;height:38px;transition:all .16s;display:flex}.sqlp-ws-icon:hover{color:#b45309;background:#f59e0b14;border-color:#f59e0b4d}.sqlp-editor-title{color:var(--im-ink);align-items:center;gap:.5rem;font-size:.9rem;font-weight:700;display:inline-flex}.sqlp-editor-title-ic{color:#d97706;background:#f59e0b1f;border-radius:.6rem;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.sqlp-lang-select{font:inherit;color:#92400e;cursor:pointer;background:#fefce8cc;border:1px solid #f59e0b66;border-radius:.6rem;align-items:center;gap:.5rem;padding:.4rem .7rem .4rem .8rem;font-size:.8rem;font-weight:600;transition:all .16s;display:inline-flex}.sqlp-lang-wrap{position:relative}.sqlp-lang-select.open{background:#f59e0b29;border-color:#f59e0b99}.sqlp-lang-menu{z-index:30;background:#fff;border:1px solid #f59e0b40;border-radius:.75rem;flex-direction:column;gap:.1rem;min-width:150px;padding:.35rem;animation:.16s genPop;display:flex;position:absolute;top:calc(100% + 6px);right:0;box-shadow:0 16px 40px -12px #00000040}.sqlp-lang-item{font:inherit;color:#334155;cursor:pointer;text-align:left;background:0 0;border:none;border-radius:.5rem;justify-content:space-between;align-items:center;gap:.5rem;padding:.5rem .7rem;font-size:.82rem;font-weight:500;transition:all .14s;display:flex}.sqlp-lang-item:hover{color:#92400e;background:#f59e0b1a}.sqlp-lang-item.on{color:#92400e;font-weight:700}.sqlp-lang-item svg{color:#f59e0b}html.dark .sqlp-lang-menu{background:#1f2937;border-color:#f59e0b4d}html.dark .sqlp-lang-item{color:#cbd5e1}html.dark .sqlp-lang-item:hover{color:#fcd34d;background:#f59e0b26}html.dark .sqlp-lang-item.on{color:#fcd34d}.sqlp-lang-select:hover{background:#f59e0b1f;border-color:#f59e0b99}.sqlp-lang-select .sqlp-lang-dot{background:#10b981;border-radius:50%;width:7px;height:7px}.sqlp-lang-select svg{color:#b45309;margin-left:.1rem}.sqlp-tool-btn{color:#b45309;font:inherit;cursor:pointer;background:0 0;border:1.5px solid #f59e0b80;border-radius:.6rem;padding:.45rem .9rem;font-size:.8rem;font-weight:600;transition:all .16s}.sqlp-tool-btn:hover{background:#f59e0b14}.sqlp-tool-btn.ghost{color:#94a3b8;border-color:#0000}.sqlp-tool-btn.ghost:hover{color:#64748b;background:#0f172a0a}.sqlp-code-ph{font-family:var(--font-mono);color:#94a3b8;pointer-events:none;font-size:.82rem;font-style:italic;position:absolute;top:1rem;left:1rem}.sqlp-editor-status{border-top:1px solid var(--im-card-bd);color:#94a3b8;font-size:.72rem;font-family:var(--font-mono);flex-shrink:0;align-items:center;gap:.85rem;padding:.45rem .9rem;display:flex}.sqlp-status-lang{color:#059669;align-items:center;gap:.35rem;font-weight:600;display:inline-flex}.sqlp-cta-row{border-top:1px solid var(--im-card-bd);flex-shrink:0;grid-template-columns:repeat(3,1fr);gap:.6rem;padding:.85rem;display:grid}.sqlp-cta{white-space:nowrap;color:#b45309;font:inherit;cursor:pointer;background:0 0;border:1.5px solid #f59e0b80;border-radius:.7rem;justify-content:center;align-items:center;gap:.45rem;padding:.5rem 1rem;font-size:.875rem;font-weight:700;transition:all .16s;display:inline-flex}.sqlp-cta:hover{background:#f59e0b14}.sqlp-cta.primary{color:#422006;background:linear-gradient(#fde047,#f59e0b);border-color:#e08c0b;box-shadow:inset 0 1px 1px #fef9c3,0 3px 8px -2px #f59e0b80}.sqlp-cta.primary:hover{background:linear-gradient(#facc15,#d97706)}.sqlp-cta.sm{border-radius:.7rem;padding:.5rem .9rem;font-size:.8rem}.sqlp-ws-divider{background:var(--im-card-bd);width:1px;height:24px;margin:0 .25rem}html.dark .sqlp-ws-divider{background:#4b556380}html.dark .sqlp-ws-back-icon,html.dark .sqlp-ws-icon{color:#94a3b8;background:#1e293b99;border-color:#4b556380}html.dark .sqlp-lang-select{color:#fcd34d;background:#78350f4d;border-color:#f59e0b66}html.dark .sqlp-lang-select svg{color:#fcd34d}html.dark .sqlp-editor-title{color:#f9fafb}html.dark .sqlp-editor-status{border-color:#4b556366}.sqlp-ws-split{flex:1;gap:0;min-height:0;display:flex}.sqlp-panel{background:#fffffff2;border:2px solid #f59e0b33;border-radius:1.25rem;flex-direction:column;min-height:0;display:flex;overflow:hidden;box-shadow:0 14px 36px -20px #0000002e}.sqlp-divider{cursor:col-resize;touch-action:none;flex:0 0 16px;justify-content:center;align-items:center;display:flex}.sqlp-divider-grip{background:#f59e0b59;border-radius:9999px;width:4px;height:48px;transition:background .16s,height .16s}.sqlp-divider:hover .sqlp-divider-grip{background:var(--im-accent);height:72px}.sqlp-panel.is-collapsed{flex:0 0 64px}.sqlp-railtabs{flex-direction:column;align-items:center;gap:.4rem;height:100%;padding:.6rem .4rem;display:flex}.sqlp-rail-expand{color:#64748b;cursor:pointer;background:#0f172a0d;border:none;border-radius:.6rem;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:36px;margin-bottom:.3rem;display:flex}.sqlp-rail-expand:hover{color:#b45309;background:#f59e0b1f}.sqlp-rail-tab{cursor:pointer;width:48px;font:inherit;color:#64748b;background:0 0;border:none;border-radius:.7rem;flex-direction:column;align-items:center;gap:.3rem;padding:.55rem 0;transition:all .16s;display:flex}.sqlp-rail-tab span{font-size:.6rem;font-weight:600}.sqlp-rail-tab:hover{color:#334155;background:#0f172a0d}.sqlp-rail-tab.on{color:#b45309;background:#f59e0b1f}html.dark .sqlp-rail-expand{color:#94a3b8;background:#ffffff0f}html.dark .sqlp-rail-tab{color:#94a3b8}html.dark .sqlp-rail-tab:hover{color:#e2e8f0;background:#ffffff0d}html.dark .sqlp-rail-tab.on{color:#fcd34d;background:#f59e0b26}.sqlp-collapse-btn{color:#64748b;cursor:pointer;background:#0f172a0d;border:none;border-radius:.6rem;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.sqlp-collapse-btn:hover{color:#b45309;background:#f59e0b1f}.sqlp-schema-cards{flex-direction:column;gap:.6rem;margin-bottom:.5rem;display:flex}.sqlp-schema-card{background:#fefce8b3;border:1px solid #f59e0b40;border-radius:.85rem;overflow:hidden}.sqlp-schema-card-head{font-family:var(--font-mono);color:#92400e;background:#f59e0b1f;align-items:center;gap:.45rem;padding:.55rem .8rem;font-size:.82rem;font-weight:700;display:flex}.sqlp-schema-card-cols{flex-wrap:wrap;gap:.4rem;padding:.65rem .8rem;display:flex}.sqlp-schema-col{font-family:var(--font-mono);color:#475569;border:1px solid var(--im-card-bd);background:#fff;border-radius:.4rem;padding:.18rem .5rem;font-size:.74rem}.sqlp-diff-chip{border-radius:.75rem;padding:.45rem .7rem;font-size:.7rem;font-weight:700}.sqlp-diff-chip.d-easy{color:#059669;background:#10b98124}.sqlp-diff-chip.d-medium{color:#b45309;background:#f59e0b29}.sqlp-diff-chip.d-hard{color:#be123c;background:#e11d481f}.sqlp-ws-progress{align-items:center;gap:.65rem;display:flex}.sqlp-prog-label{color:#64748b;font-size:.85rem}.sqlp-prog-label strong{color:var(--im-ink);font-weight:700}.sqlp-prog-arrow{border:1px solid var(--im-card-bd);color:#64748b;cursor:pointer;background:#ffffffb3;border-radius:.6rem;justify-content:center;align-items:center;width:30px;height:30px;transition:all .16s;display:flex}.sqlp-prog-arrow:hover{color:#b45309;background:#f59e0b14;border-color:#f59e0b4d}.sqlp-editor-area{flex-direction:column;flex:1;min-height:0;display:flex}.sqlp-results{background:#fefce880;border-top:2px solid #f59e0b40;flex-direction:column;min-height:0;display:flex}.sqlp-results-handle{cursor:row-resize;touch-action:none;flex-shrink:0;justify-content:center;align-items:center;height:12px;display:flex}.sqlp-results-handle span{background:#f59e0b66;border-radius:9999px;width:44px;height:4px}.sqlp-results-handle:hover span{background:var(--im-accent)}.sqlp-results-head{flex-shrink:0;align-items:center;gap:.75rem;padding:.4rem .85rem .6rem;display:flex}.sqlp-results-title{color:var(--im-ink);align-items:center;gap:.4rem;font-size:.82rem;font-weight:700;display:inline-flex}.sqlp-results-match{color:#059669;background:#10b9811f;border-radius:9999px;align-items:center;gap:.3rem;padding:.2rem .55rem;font-size:.72rem;font-weight:700;display:inline-flex}.sqlp-results-match.fail{color:#dc2626;background:#ef44441f}.sqlp-table tr.row-missing td{color:#b91c1c;background:#ef44441a;position:relative}.sqlp-kbd-hint{color:#94a3b8;margin-left:.25rem;font-size:.72rem;font-weight:500}.sqlp-cta:disabled{opacity:.45;cursor:not-allowed}.sqlp-cta.primary:disabled:hover{background:linear-gradient(#fde047,#f59e0b)}.sqlp-cta:disabled:hover{background:0 0}html.dark .sqlp-table tr.row-missing td{color:#fca5a5;background:#ef44442e}html.dark .sqlp-kbd-hint{color:#64748b}.sqlp-results-close{color:#94a3b8;cursor:pointer;background:0 0;border:none;border-radius:.5rem;justify-content:center;align-items:center;width:28px;height:28px;margin-left:auto;display:flex}.sqlp-results-close:hover{color:#1f2937;background:#0f172a0f}.sqlp-results-grid{grid-template-columns:1fr 1fr;gap:.85rem;min-height:0;padding:0 .85rem .85rem;display:grid;overflow:auto}.sqlp-results-col-label{text-transform:uppercase;letter-spacing:.05em;color:#94a3b8;margin-bottom:.4rem;font-size:.7rem;font-weight:700}.sqlp-actionbar{border-top:1px solid var(--im-card-bd);flex-shrink:0;align-items:center;gap:.6rem;padding:.4rem .85rem;display:flex}.sqlp-cta.ghost{color:#64748b;background:0 0;border-color:#0000}.sqlp-cta.ghost:hover{color:#334155;background:#0f172a0d}.sqlp-cta.run{color:#334155;border-color:#0f172a2e}.sqlp-cta.run:hover{background:#0f172a0d;border-color:#0f172a4d}.sqlp-cta.lg{padding:.55rem 1.5rem;font-size:.9rem}html.dark .sqlp-schema-card{background:#0f172a80;border-color:#f59e0b33}html.dark .sqlp-schema-col{color:#cbd5e1;background:#1e293b99;border-color:#4b556380}html.dark .sqlp-prog-label{color:#94a3b8}html.dark .sqlp-prog-label strong{color:#f9fafb}html.dark .sqlp-prog-arrow{color:#94a3b8;background:#1e293b99;border-color:#4b556380}html.dark .sqlp-results{background:#0f172a66;border-color:#f59e0b40}html.dark .sqlp-results-title{color:#f9fafb}html.dark .sqlp-panel-expand:hover{background:#f59e0b1a}html.dark .sqlp-collapse-btn{color:#94a3b8;background:#ffffff0f}html.dark .sqlp-cta.run{color:#cbd5e1;border-color:#94a3b866}html.dark .sqlp-cta.run:hover{background:#ffffff0f}.sqlp-tabs{border-bottom:1px solid var(--im-card-bd);flex-shrink:0;gap:.4rem;padding:.45rem .5rem;display:flex}.sqlp-tab{color:#b45309;font:inherit;cursor:pointer;font-size:.8rem;font-weight:600;font:inherit;cursor:pointer;background:0 0;border:1.5px solid #f59e0b73;border-radius:.6rem;flex:1;padding:.4rem;font-size:.8rem;font-weight:600;transition:all .16s}.sqlp-tab:hover{background:#f59e0b14;border-color:#f59e0bb3}.sqlp-tab.on{background:var(--im-accent);color:#422006;border-color:var(--im-accent);box-shadow:0 4px 12px -4px #f59e0b80}.sqlp-panel-body{flex:1;min-height:0;padding:1.35rem;overflow:auto}.sqlp-sec-h{font-family:var(--font-display);color:#b45309;letter-spacing:-.01em;align-items:center;gap:.5rem;margin:0 0 .6rem;font-size:1rem;font-weight:700;display:flex}.sqlp-prose>.sqlp-sec-h:not(:first-child){margin-top:1.5rem}.sqlp-problem-text{color:#334155;margin:0;font-size:.9rem;line-height:1.6}.sqlp-problem-text code{font-family:var(--font-mono);color:#92400e;background:#f59e0b1f;border-radius:5px;padding:.1em .4em;font-size:.85em}.sqlp-schema{flex-direction:column;gap:.5rem;display:flex}.sqlp-schema-row{background:#fefce8b3;border:1px solid #f59e0b33;border-radius:.7rem;flex-direction:column;gap:.15rem;padding:.65rem .85rem;display:flex}.sqlp-schema-table{font-family:var(--font-mono);color:#92400e;font-size:.82rem;font-weight:700}.sqlp-schema-cols{font-family:var(--font-mono);color:#64748b;font-size:.76rem}.sqlp-table-wrap{border:1px solid var(--im-card-bd);border-radius:.7rem;overflow-x:auto}.sqlp-table{border-collapse:collapse;width:100%;font-size:.8rem}.sqlp-table th{text-align:left;font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.04em;color:#94a3b8;border-bottom:1px solid var(--im-card-bd);background:#0f172a08;padding:.5rem .75rem;font-size:.72rem}.sqlp-table td{color:#334155;font-family:var(--font-mono);border-bottom:1px solid #0f172a0d;padding:.5rem .75rem;font-size:.78rem}.sqlp-table tr:last-child td{border-bottom:none}.sqlp-verdict{border-radius:.7rem;align-items:center;gap:.5rem;margin-bottom:1rem;padding:.5rem .9rem;font-size:.9rem;font-weight:700;display:inline-flex}.sqlp-verdict.ok{color:#059669;background:#10b9811f}.sqlp-empty{text-align:center;color:#94a3b8;flex-direction:column;justify-content:center;align-items:center;gap:.85rem;height:100%;display:flex}.sqlp-empty p{max-width:30ch;margin:0;font-size:.875rem;line-height:1.5}.sqlp-fb{background:#10b9810f;border:2px solid #10b98166;border-radius:1rem;overflow:hidden}.sqlp-fb-head{background:#10b9811f;align-items:center;gap:.85rem;padding:.9rem 1.1rem;display:flex}.sqlp-fb-ic{color:#059669;background:#10b98140;border-radius:.65rem;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;display:flex}.sqlp-fb-title{color:#047857;margin:0;font-size:.95rem;font-weight:700}.sqlp-fb-sub{color:#059669;margin:1px 0 0;font-size:.8rem}.sqlp-fb-body{flex-direction:column;gap:1rem;padding:1.1rem;display:flex}.sqlp-fb-label{text-transform:uppercase;letter-spacing:.06em;color:#b45309;align-items:center;gap:.4rem;margin:0 0 .4rem;font-size:.72rem;font-weight:700;display:flex}.sqlp-fb-text{color:#334155;margin:0;font-size:.9rem;line-height:1.6}.sqlp-fb-text code{font-family:var(--font-mono);color:#92400e;background:#f59e0b1f;border-radius:4px;padding:.05em .35em;font-size:.82em}html.dark .sqlp-fb{background:#064e3b66;border-color:#10b98166}html.dark .sqlp-fb-head{background:#064e3b66}html.dark .sqlp-fb-ic{color:#34d399}html.dark .sqlp-fb-title{color:#6ee7b7}html.dark .sqlp-fb-sub{color:#34d399}html.dark .sqlp-fb-text{color:#cbd5e1}html.dark .sqlp-fb-label{color:#fcd34d}.sqlp-code-block{font-family:var(--font-mono);color:#e2e8f0;background:#0f172a;border-radius:.7rem;margin:0 0 .85rem;padding:1rem;font-size:.8rem;line-height:1.6;overflow-x:auto}.sqlp-editor-panel{border-color:#0f172a1f}.sqlp-editor-top{border-bottom:1px solid var(--im-card-bd);flex-shrink:0;justify-content:space-between;align-items:center;padding:.4rem .85rem;display:flex}.sqlp-editor-lang{color:#475569;align-items:center;gap:.45rem;font-size:.8rem;font-weight:600;display:inline-flex}.sqlp-lang-dot{background:#10b981;border-radius:50%;width:8px;height:8px}.sqlp-icon-btn{border:1px solid var(--im-card-bd);color:#64748b;cursor:pointer;background:0 0;border-radius:.5rem;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.sqlp-icon-btn:hover{background:#0f172a0d}.sqlp-editor{background:#0c1222;flex:1;min-height:0;display:flex;overflow:hidden}.sqlp-gutter{font-family:var(--font-mono);color:#475569;text-align:right;-webkit-user-select:none;user-select:none;background:#0a0f1c;flex-direction:column;padding:1rem .5rem 1rem .85rem;font-size:.82rem;line-height:1.7;display:flex}.sqlp-code-wrap{flex:1;min-width:0;min-height:0;position:relative}.sqlp-hl,.sqlp-code{font-family:var(--font-mono);white-space:pre;tab-size:2;border:none;margin:0;padding:1rem;font-size:.82rem;line-height:1.7}.sqlp-hl{pointer-events:none;color:#e2e8f0;position:absolute;inset:0;overflow:auto}.sqlp-code{color:#0000;caret-color:#fbbf24;resize:none;background:0 0;outline:none;width:100%;height:100%;position:absolute;inset:0;overflow:auto}.tok-kw{color:#fbbf24;font-weight:600}.tok-str{color:#86efac}.tok-num{color:#fca5a5}.tok-com{color:#64748b;font-style:italic}.tok-fn{color:#93c5fd}.sqlp-editor-actions{border-top:1px solid var(--im-card-bd);flex-shrink:0;align-items:center;gap:.6rem;padding:.75rem;display:flex}.sqlp-run{color:var(--im-ink);font:inherit;cursor:pointer;background:0 0;border:2px solid #0f172a26;border-radius:9999px;align-items:center;padding:.6rem 1.2rem;font-size:.875rem;font-weight:600;display:inline-flex}.sqlp-run:hover{background:#0f172a0d}.sqlp-hint{color:#475569;background:#f59e0b14;border:1px dashed #f59e0b66;border-radius:.7rem;margin-top:.6rem;padding:.75rem .9rem;font-size:.82rem;line-height:1.5}.sqlp-hint strong{color:#b45309}html.dark .sqlp-hero-title,html.dark .sqlp-step-head,html.dark .sqlp-level-name,html.dark .sqlp-topic-name{color:#f9fafb}html.dark .sqlp-hero-sub,html.dark .sqlp-step-desc,html.dark .sqlp-topic-desc,html.dark .sqlp-level-desc{color:#94a3b8}html.dark .sqlp-card{background:#1f2937d9;border-color:#4b556366}html.dark .sqlp-step-line{background:#94a3b840}html.dark .sqlp-step-line.done{background:#10b981}html.dark .sqlp-step-dot{color:#cbd5e1;background:#94a3b82e}html.dark .sqlp-step{color:#64748b}html.dark .sqlp-step.active .sqlp-step-label{color:#f9fafb}html.dark .sqlp-step.done .sqlp-step-label{color:#cbd5e1}html.dark .sqlp-step-head{color:#f9fafb}html.dark .sqlp-stepper{background:#0f172a66;border-color:#f59e0b40}html.dark .sqlp-topic,html.dark .sqlp-level,html.dark .sqlp-dialect{background:#0f172a4d}html.dark .sqlp-level:hover,html.dark .sqlp-dialect:hover,html.dark .sqlp-topic:hover{background:#f59e0b24;border-color:#f59e0bb3}html.dark .sqlp-level-desc{color:#94a3b8}html.dark .sqlp-panel{background:#1f2937f2;border-color:#f59e0b33}html.dark .sqlp-problem-text{color:#cbd5e1}html.dark .sqlp-schema-row{background:#0f172a80;border-color:#f59e0b33}html.dark .sqlp-table td{color:#cbd5e1}html.dark .sqlp-editor-panel{border-color:#4b556380}html.dark .sqlp-ws-chip{color:#cbd5e1;background:#ffffff14}@media (max-width:860px){.sqlp-workspace{height:auto;min-height:100vh}.sqlp-ws-split{flex-direction:column}.sqlp-panel{height:auto;width:100%!important}.sqlp-panel.sqlp-editor-panel{min-height:440px}.sqlp-divider,.sqlp-ws-progress{display:none}.sqlp-level-grid,.sqlp-results-grid{grid-template-columns:1fr}.sqlp-kbd-hint{display:none}}.learn-wrap{flex-direction:column;gap:1rem;display:flex}.learn-progress-card{background:linear-gradient(135deg,#fffbeb,#ffffffe6);border:1px solid #f59e0b4d;border-radius:1.5rem;padding:1.5rem 1.6rem;box-shadow:0 20px 50px -28px #f59e0b66}.learn-progress-top{justify-content:space-between;align-items:flex-start;gap:1.5rem;display:flex}.learn-progress-eyebrow{letter-spacing:.1em;text-transform:uppercase;color:#b45309;align-items:center;gap:.4rem;margin-bottom:.5rem;font-size:.72rem;font-weight:700;display:inline-flex}.learn-progress-title{font-family:var(--font-display);letter-spacing:-.02em;color:var(--im-ink);margin:0 0 .4rem;font-size:1.5rem;font-weight:800}.learn-progress-sub{color:#64748b;max-width:52ch;margin:0;font-size:.9rem;line-height:1.5}.learn-progress-sub code{font-family:var(--font-mono);color:#92400e;background:#f59e0b1f;border-radius:4px;padding:.05em .35em;font-size:.82em}.learn-ring{--pct:0;background:conic-gradient(#f59e0b calc(var(--pct)*1%),#f59e0b26 0);border-radius:50%;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;width:84px;height:84px;line-height:1;display:flex;position:relative}.learn-ring:before{content:"";background:#fffef9;border-radius:50%;width:66px;height:66px;position:absolute}.learn-ring-num{font-family:var(--font-display);color:var(--im-ink);letter-spacing:-.02em;font-size:1.5rem;font-weight:800;position:relative}.learn-ring-of{color:#94a3b8;margin-top:2px;font-size:.62rem;font-weight:600;position:relative}.learn-resume{white-space:nowrap;flex-shrink:0}.learn-progress-bar{background:#f59e0b26;border-radius:9999px;height:8px;margin:1.1rem 0 .85rem;overflow:hidden}.learn-progress-bar span{background:linear-gradient(90deg,#f59e0b,#fbbf24);border-radius:9999px;height:100%;display:block}.learn-progress-foot{color:#64748b;justify-content:space-between;align-items:center;gap:1rem;font-size:.85rem;font-weight:500;display:flex}.learn-sections{flex-direction:column;gap:.6rem;display:flex}.learn-sec{border:1px solid var(--im-card-bd);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffffd9;border-radius:1.1rem;transition:border-color .2s;overflow:hidden}.learn-sec.open{border-color:#f59e0b59}.learn-sec-head{cursor:pointer;width:100%;font:inherit;text-align:left;background:0 0;border:none;align-items:center;gap:.9rem;padding:1rem 1.1rem;transition:background .16s;display:flex}.learn-sec-head:hover{background:#f59e0b0d}.learn-sec-ic{color:#d97706;background:#f59e0b1f;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;display:flex}.learn-sec.open .learn-sec-ic{background:var(--im-accent);color:#fff}.learn-sec-text{flex-direction:column;flex:1;gap:.15rem;min-width:0;display:flex}.learn-sec-name{font-family:var(--font-display);color:var(--im-ink);letter-spacing:-.01em;font-size:1.02rem;font-weight:700}.learn-sec-blurb{color:#94a3b8;white-space:nowrap;text-overflow:ellipsis;font-size:.8rem;overflow:hidden}.learn-sec-meta{flex-shrink:0;align-items:center;gap:.75rem;display:flex}.learn-sec-count{color:#64748b;background:#0f172a0d;border-radius:9999px;padding:.2rem .6rem;font-size:.78rem;font-weight:700}.learn-sec-count.all{color:#059669;background:#10b98126}.learn-sec-chev{color:#94a3b8;transition:transform .2s;display:flex}.learn-sec.open .learn-sec-chev{transform:rotate(180deg)}.learn-q-list{flex-direction:column;padding:.25rem .6rem .7rem;display:flex}.learn-q{cursor:pointer;width:100%;font:inherit;text-align:left;background:0 0;border:none;border-radius:.7rem;align-items:center;gap:.85rem;padding:.7rem .6rem;transition:background .15s;display:flex}.learn-q:not(:last-child){border-bottom:1px solid #0f172a0d}.learn-q:not(.locked):hover{background:#f59e0b0f}.learn-q.locked{cursor:not-allowed;opacity:.55}.learn-q-num{border-radius:9999px;flex-shrink:0;justify-content:center;align-items:center;width:26px;min-width:26px;height:26px;font-size:.78rem;font-weight:700;display:flex}.learn-q.done .learn-q-num{color:#059669;background:#10b98126}.learn-q.current .learn-q-num{background:var(--im-accent);color:#fff;box-shadow:0 0 0 4px #f59e0b2e}.learn-q.locked .learn-q-num{color:#94a3b8;background:#0f172a0f}.learn-q-title{color:#334155;flex:1;min-width:0;font-size:.9rem}.learn-q.current .learn-q-title{color:var(--im-ink);font-weight:600}.learn-q-diff{border-radius:9999px;flex-shrink:0;padding:.12rem .5rem;font-size:.68rem;font-weight:700}.d-easy{color:#059669;background:#10b98124}.d-medium{color:#b45309;background:#f59e0b29}.d-hard{color:#be123c;background:#e11d481f}.learn-q-go{color:#b45309;flex-shrink:0;align-items:center;gap:.3rem;font-size:.78rem;font-weight:700;display:inline-flex}.learn-q-redo{color:#94a3b8;flex-shrink:0;font-size:.74rem;font-weight:600}.sqlp-learn-banner{color:#b45309;background:#f59e0b1a;border:1px solid #f59e0b33;border-radius:.7rem;align-items:center;gap:.5rem;margin-bottom:1.1rem;padding:.55rem .8rem;font-size:.82rem;font-weight:600;display:flex}.sqlp-ws-chip.qnum{background:var(--im-accent);color:#fff}html.dark .learn-progress-card{background:linear-gradient(135deg,#78350f59,#1f2937d9);border-color:#f59e0b4d}html.dark .learn-progress-title{color:#f9fafb}html.dark .learn-ring:before{background:#1f2937}html.dark .learn-ring-num{color:#f9fafb}html.dark .learn-sec{background:#1f2937b3;border-color:#4b556366}html.dark .learn-sec.open{border-color:#f59e0b59}html.dark .learn-sec-name{color:#f9fafb}html.dark .learn-q-title{color:#cbd5e1}html.dark .learn-q.current .learn-q-title{color:#f9fafb}html.dark .learn-sec-count{color:#cbd5e1;background:#ffffff14}html.dark .learn-q:not(.locked):hover{background:#f59e0b1a}@media (max-width:720px){.learn-progress-top{flex-direction:column;align-items:stretch}.learn-ring{align-self:flex-start}.learn-sec-blurb{display:none}}.topq-intro{border:1px solid var(--im-card-bd);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffffd9;border-radius:1.25rem;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;padding:1.1rem 1.4rem;display:flex}.topq-intro-row{align-items:center;gap:1.75rem;display:flex}.topq-stat{flex-direction:column;display:flex}.topq-stat-num{font-family:var(--font-display);color:var(--im-ink);letter-spacing:-.02em;align-items:center;gap:.3rem;font-size:1.5rem;font-weight:800;line-height:1;display:inline-flex}.topq-stat-num.topq-pop-num{color:#d97706}.topq-stat-lbl{color:#94a3b8;text-transform:uppercase;letter-spacing:.04em;margin-top:3px;font-size:.72rem;font-weight:600}.topq-filter{background:#0f172a0d;border-radius:9999px;gap:.25rem;padding:.25rem;display:flex}.topq-filter-btn{cursor:pointer;font:inherit;color:#64748b;background:0 0;border:none;border-radius:9999px;padding:.35rem .85rem;font-size:.8rem;font-weight:600;transition:all .15s}.topq-filter-btn:hover{color:#334155}.topq-filter-btn.on{color:var(--im-ink);background:#fff;box-shadow:0 1px 3px #0000001a}.topq-q{cursor:pointer;width:100%;font:inherit;text-align:left;background:0 0;border:none;border-radius:.7rem;align-items:center;gap:.85rem;padding:.7rem .6rem;transition:background .15s;display:flex}.topq-q:not(:last-child){border-bottom:1px solid #0f172a0d}.topq-q:hover{background:#f59e0b0f}.topq-q-ic{color:#94a3b8;background:#0f172a0d;border-radius:.5rem;flex-shrink:0;justify-content:center;align-items:center;width:26px;min-width:26px;height:26px;display:flex}.topq-q-ic.pop{color:#d97706;background:#f59e0b26}.topq-q-title{color:#334155;flex:1;min-width:0;font-size:.9rem}.topq-q:hover .topq-q-title{color:var(--im-ink)}.topq-pop-tag{color:#b45309;background:#f59e0b1f;border-radius:9999px;flex-shrink:0;padding:.12rem .5rem;font-size:.66rem;font-weight:700}.topq-q-arrow{color:#cbd5e1;flex-shrink:0;transition:all .15s;display:flex}.topq-q:hover .topq-q-arrow{color:var(--im-accent);transform:translate(2px)}.topq-theory{text-align:center;border:1px solid var(--im-card-bd);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#ffffffd9;border-radius:1.5rem;max-width:520px;margin:2rem auto;padding:2.5rem 2rem;box-shadow:0 20px 50px -28px #0003}.topq-theory-ic{color:#fff;background:linear-gradient(135deg,#fbbf24,#f59e0b);border-radius:18px;justify-content:center;align-items:center;width:64px;height:64px;margin-bottom:1rem;display:inline-flex;box-shadow:0 12px 28px -10px #f59e0b80}.topq-theory-title{font-family:var(--font-display);letter-spacing:-.02em;color:var(--im-ink);margin:0 0 .6rem;font-size:1.5rem;font-weight:800}.topq-theory-sub{color:#64748b;margin:0 0 1.5rem;font-size:.95rem;line-height:1.6}.topq-theory .btn{gap:.5rem}.topq-theory-note{color:#94a3b8;margin:1.25rem 0 0;font-size:.8rem}.topq-theory-note code{font-family:var(--font-mono);color:#64748b;background:#0f172a0f;border-radius:4px;padding:.1em .4em}html.dark .topq-intro{background:#1f2937b3;border-color:#4b556366}html.dark .topq-stat-num{color:#f9fafb}html.dark .topq-stat-num.topq-pop-num{color:#fbbf24}html.dark .topq-filter{background:#ffffff0f}html.dark .topq-filter-btn.on{color:#f9fafb;background:#ffffff1f}html.dark .topq-q-ic{background:#ffffff0f}html.dark .topq-q-title{color:#cbd5e1}html.dark .topq-q:hover .topq-q-title{color:#f9fafb}html.dark .topq-q:hover{background:#f59e0b1a}html.dark .topq-theory{background:#1f2937b3;border-color:#4b556366}html.dark .topq-theory-title{color:#f9fafb}@media (max-width:640px){.topq-intro{flex-direction:column;align-items:stretch}.topq-intro-row{justify-content:space-between}.topq-pop-tag{display:none}}.genload-backdrop{z-index:80;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#78715a66;justify-content:center;align-items:center;padding:1rem;animation:.2s genFade;display:flex;position:fixed;inset:0}@keyframes genFade{0%{opacity:0}to{opacity:1}}.genload-card{text-align:center;background:linear-gradient(#fffefb,#fff8ec);border:1px solid #f59e0b40;border-radius:1.75rem;width:min(370px,92vw);padding:2.75rem 2.5rem 2.5rem;animation:.35s cubic-bezier(.22,1,.36,1) genPop;position:relative;overflow:hidden;box-shadow:0 30px 70px -20px #92400e4d,inset 0 1px #fffc}.genload-card:before{content:"";filter:blur(30px);pointer-events:none;background:radial-gradient(circle,#fbbf2466,#0000 70%);width:260px;height:180px;position:absolute;top:-80px;left:50%;transform:translate(-50%)}@keyframes genPop{0%{opacity:0;transform:scale(.9)translateY(20px)}to{opacity:1;transform:scale(1)translateY(0)}}.genload-ring{width:84px;height:84px;margin:0 auto 1.75rem;position:relative}.genload-ping{background:linear-gradient(135deg,#f59e0b59,#d977064d);border-radius:1.25rem;animation:2s ease-out infinite genPing;position:absolute;inset:0}@keyframes genPing{0%{opacity:.7;transform:scale(1)}60%,to{opacity:0;transform:scale(1.45)}}.genload-ic{color:#422006;background:linear-gradient(135deg,#fde047,#f59e0b,#d97706);border-radius:1.25rem;justify-content:center;align-items:center;width:84px;height:84px;animation:1.5s ease-in-out infinite genBob;display:flex;position:relative;box-shadow:0 12px 28px -6px #f59e0b8c,inset 0 1px 1px #ffffff80}@keyframes genBob{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.genload-title{font-family:var(--font-display);letter-spacing:-.02em;color:#1f2937;margin:0;font-size:1.25rem;font-weight:800;position:relative}.genload-sub{color:#92774f;justify-content:center;align-items:center;gap:.25rem;margin:.4rem 0 0;font-size:.875rem;animation:1.5s ease-in-out infinite genFadePulse;display:inline-flex;position:relative}@keyframes genFadePulse{0%,to{opacity:.55}50%{opacity:1}}.genload-dots{gap:2px;margin-left:4px;display:inline-flex}.genload-dots i{background:#f59e0b;border-radius:50%;width:4px;height:4px;animation:.8s ease-in-out infinite genDot}.genload-dots i:nth-child(2){animation-delay:.2s}.genload-dots i:nth-child(3){animation-delay:.4s}@keyframes genDot{0%,to{opacity:.3}50%{opacity:1}}.genload-bar{background:#f59e0b2e;border-radius:9999px;height:6px;margin-top:1.6rem;position:relative;overflow:hidden}.genload-bar span{background:linear-gradient(90deg,#f59e0b,#fbbf24);border-radius:9999px;width:40%;height:100%;animation:1.8s ease-in-out infinite genBar;display:block}@keyframes genBar{0%{transform:translate(-250%)}to{transform:translate(250%)}}html.dark .genload-backdrop{background:#02061799}html.dark .genload-card{background:linear-gradient(#1e293b,#0f172a);border-color:#f59e0b33;box-shadow:0 30px 70px -20px #000000b3,inset 0 1px #ffffff0d}html.dark .genload-card:before{background:radial-gradient(circle,#f59e0b4d,#0000 70%)}html.dark .genload-title{color:#f8fafc}html.dark .genload-sub{color:#94a3b8}html.dark .genload-bar{background:#334155cc}.rate-backdrop{z-index:80;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#0f172a80;justify-content:center;align-items:center;padding:1rem;animation:.2s genFade;display:flex;position:fixed;inset:0}.rate-card{background:#fff;border:1px solid #f59e0b4d;border-radius:1.25rem;width:min(440px,94vw);animation:.25s cubic-bezier(.34,1.56,.64,1) genPop;overflow:hidden;box-shadow:0 30px 70px -20px #00000059}.rate-head{border-bottom:1px solid #f59e0b33;align-items:center;gap:.85rem;padding:1.25rem 1.4rem;display:flex}.rate-head-ic{color:#d97706;background:#f59e0b26;border-radius:.75rem;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;display:flex}.rate-head-text{flex:1}.rate-title{font-family:var(--font-display);color:#92400e;letter-spacing:-.01em;margin:0;font-size:1.15rem;font-weight:800}.rate-sub{color:#64748b;margin:1px 0 0;font-size:.85rem}.rate-close{color:#94a3b8;cursor:pointer;background:0 0;border:none;border-radius:9999px;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.rate-close:hover{color:#1f2937;background:#0f172a0f}.rate-body{padding:1.4rem}.rate-label{color:#334155;margin:0 0 .85rem;font-size:.95rem;font-weight:700}.rate-req{color:#f59e0b}.rate-scale{grid-template-columns:repeat(8,1fr);gap:.5rem;display:grid}.rate-num{aspect-ratio:1;color:#334155;font:inherit;cursor:pointer;background:#eef2f7;border:none;border-radius:.65rem;font-size:.95rem;font-weight:700;transition:all .15s}.rate-num:hover{color:#b45309;background:#f59e0b26}.rate-num.on{color:#422006;background:linear-gradient(135deg,#fbbf24,#f59e0b);box-shadow:0 4px 12px -3px #f59e0b99}.rate-textarea{width:100%;min-height:96px;font:inherit;color:#334155;resize:vertical;box-sizing:border-box;border:1.5px solid #e2e8f0;border-radius:.85rem;outline:none;padding:.85rem;font-size:.9rem}.rate-textarea:focus{border-color:#f59e0b;box-shadow:0 0 0 3px #f59e0b26}.rate-textarea::placeholder{color:#94a3b8}.rate-as{color:#94a3b8;margin:.85rem 0 0;font-size:.85rem}.rate-foot{grid-template-columns:1fr 1fr;gap:.75rem;padding:0 1.4rem 1.4rem;display:grid}.rate-btn{font:inherit;cursor:pointer;border-radius:.85rem;padding:.85rem;font-size:.95rem;font-weight:700;transition:all .16s}.rate-btn.cancel{color:#b45309;background:0 0;border:1.5px solid #f59e0b80}.rate-btn.cancel:hover{background:#f59e0b14}.rate-btn.submit{color:#422006;background:linear-gradient(#fde047,#f59e0b);border:none;box-shadow:inset 0 1px 1px #fef9c3,0 3px 8px -2px #f59e0b80}.rate-btn.submit:disabled{color:#b08442;cursor:not-allowed;box-shadow:none;opacity:.7;background:#fcd9a6}html.dark .rate-card{background:#1f2937;border-color:#f59e0b4d}html.dark .rate-title{color:#fcd34d}html.dark .rate-sub,html.dark .rate-as{color:#94a3b8}html.dark .rate-label{color:#e2e8f0}html.dark .rate-num{color:#cbd5e1;background:#ffffff0f}html.dark .rate-textarea{color:#e2e8f0;background:#0f172a80;border-color:#4b556380}html.dark .rate-close:hover{color:#f1f5f9;background:#ffffff14}.hint-backdrop{z-index:80;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#0f172a80;justify-content:center;align-items:center;padding:1rem;animation:.2s genFade;display:flex;position:fixed;inset:0}.hint-card{background:linear-gradient(#fffdf7,#fff);border:1px solid #f59e0b4d;border-radius:1.5rem;width:min(480px,94vw);padding:1.5rem;animation:.25s cubic-bezier(.34,1.56,.64,1) genPop;position:relative;overflow:hidden;box-shadow:0 30px 70px -20px #00000059}.hint-glow{filter:blur(20px);pointer-events:none;background:radial-gradient(circle,#fbbf2459,#0000 70%);border-radius:50%;width:180px;height:180px;position:absolute;top:-60px;left:-40px}.hint-close{color:#94a3b8;cursor:pointer;z-index:2;background:#0f172a0d;border:none;border-radius:.65rem;justify-content:center;align-items:center;width:32px;height:32px;transition:all .16s;display:flex;position:absolute;top:1rem;right:1rem}.hint-close:hover{color:#b45309;background:#f59e0b26}.hint-head{align-items:center;gap:.85rem;margin-bottom:1.1rem;display:flex;position:relative}.hint-ic{color:#422006;background:linear-gradient(135deg,#fde047,#f59e0b);border-radius:1rem;flex-shrink:0;justify-content:center;align-items:center;width:52px;height:52px;display:flex;box-shadow:0 10px 24px -6px #f59e0b99,inset 0 1px 1px #ffffff80}.hint-title{font-family:var(--font-display);color:#1f2937;letter-spacing:-.01em;margin:0;font-size:1.3rem;font-weight:800}.hint-sub{color:#94a3b8;margin:2px 0 0;font-size:.85rem}.hint-body{position:relative}.hint-text-wrap{background:#f59e0b12;border:1px solid #f59e0b33;border-radius:1rem;padding:1.1rem 1.2rem 1.1rem 2.6rem;position:relative}.hint-quote{font-family:var(--font-display);color:#f59e0b73;font-size:2.6rem;line-height:1;position:absolute;top:.1rem;left:.7rem}.hint-text-wrap p{color:#334155;margin:0;font-size:.95rem;line-height:1.65}.hint-loading{color:#64748b;background:#f59e0b12;border:1px solid #f59e0b33;border-radius:1rem;align-items:center;gap:.7rem;padding:1.1rem 1.2rem;font-size:.9rem;display:flex}.hint-spinner{border:2.5px solid #f59e0b40;border-top-color:#f59e0b;border-radius:50%;flex-shrink:0;width:22px;height:22px;animation:.7s linear infinite hintSpin}@keyframes hintSpin{to{transform:rotate(360deg)}}.hint-foot{justify-content:flex-end;align-items:center;gap:1rem;margin-top:1.1rem;display:flex}.hint-foot-note{color:#b45309;align-items:center;gap:.4rem;font-size:.8rem;display:inline-flex}html.dark .hint-card{background:linear-gradient(#232f43,#1f2937);border-color:#f59e0b4d}html.dark .hint-title{color:#f9fafb}html.dark .hint-sub{color:#94a3b8}html.dark .hint-text-wrap{background:#f59e0b1a;border-color:#f59e0b40}html.dark .hint-text-wrap p{color:#e2e8f0}html.dark .hint-loading{color:#94a3b8;background:#f59e0b1a;border-color:#f59e0b40}html.dark .hint-close{background:#ffffff0f}html.dark .hint-close:hover{color:#fcd34d;background:#f59e0b2e}.sqlp-ws-icon.saved{color:#d97706;background:#f59e0b26;border-color:#f59e0b66}.saved-q{align-items:center;gap:0;display:flex;padding:0!important}.saved-q-main{cursor:pointer;font:inherit;text-align:left;background:0 0;border:none;border-radius:.7rem;flex:1;align-items:center;gap:.85rem;padding:.7rem .6rem;transition:background .15s;display:flex}.saved-q-main:hover{background:#f59e0b0f}.saved-q-remove{color:#cbd5e1;cursor:pointer;background:0 0;border:none;border-radius:.5rem;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;margin-right:.3rem;display:flex}.saved-q-remove:hover{color:#dc2626;background:#ef44441f}html.dark .sqlp-ws-icon.saved{color:#fcd34d;background:#f59e0b33}html.dark .saved-q-main:hover{background:#f59e0b1f}html.dark .saved-q-remove{color:#64748b}.sqlp-hero-row{justify-content:center;align-items:center;gap:.85rem;display:flex}.prog-wrap{flex-direction:column;gap:1rem;max-width:920px;margin:0 auto;display:flex}.prog-stats{grid-template-columns:repeat(4,1fr);gap:.85rem;display:grid}.prog-stat{border:1px solid var(--im-card-bd);background:#ffffffd9;border-radius:1.1rem;flex-direction:column;align-items:flex-start;gap:.3rem;padding:1.1rem 1.2rem;display:flex;position:relative;box-shadow:0 8px 24px -16px #0000001f}.prog-stat-ic{border-radius:.7rem;justify-content:center;align-items:center;width:38px;height:38px;margin-bottom:.2rem;display:flex}.prog-stat-val{font-family:var(--font-display);color:var(--im-ink);letter-spacing:-.02em;font-size:1.75rem;font-weight:800;line-height:1}.prog-stat-lbl{color:#64748b;font-size:.78rem;font-weight:500}.prog-stat-note{color:#94a3b8;font-size:.68rem;font-weight:700;position:absolute;top:1.1rem;right:1.2rem}.prog-grid{grid-template-columns:1fr 1fr;gap:.85rem;display:grid}.prog-card{border:1px solid var(--im-card-bd);background:#ffffffd9;border-radius:1.25rem;padding:1.25rem 1.4rem;box-shadow:0 8px 24px -16px #0000001f}.prog-card-head{text-transform:uppercase;letter-spacing:.05em;color:#b45309;align-items:center;gap:.5rem;margin-bottom:1.1rem;font-size:.82rem;font-weight:700;display:flex}.prog-week{justify-content:space-between;align-items:flex-end;gap:.6rem;height:120px;display:flex}.prog-day{flex-direction:column;flex:1;justify-content:flex-end;align-items:center;gap:.5rem;height:100%;display:flex}.prog-day-bar{background:linear-gradient(#fbbf24,#f59e0b);border-radius:.5rem .5rem .3rem .3rem;width:100%;max-width:32px;transition:height .4s}.prog-day-lbl{color:#94a3b8;font-size:.72rem;font-weight:600}.prog-topics{flex-direction:column;gap:.8rem;display:flex}.prog-topic-row{color:#334155;justify-content:space-between;margin-bottom:.35rem;font-size:.85rem;font-weight:500;display:flex}.prog-topic-n{color:#b45309;font-weight:700}.prog-topic-bar{background:#f59e0b24;border-radius:9999px;height:7px;overflow:hidden}.prog-topic-bar span{background:linear-gradient(90deg,#f59e0b,#fbbf24);border-radius:9999px;height:100%;transition:width .5s;display:block}html.dark .prog-stat,html.dark .prog-card{background:#1f2937b3;border-color:#4b556366}html.dark .prog-stat-val{color:#f9fafb}html.dark .prog-topic-row{color:#cbd5e1}html.dark .prog-topic-n{color:#fcd34d}@media (max-width:760px){.prog-stats{grid-template-columns:repeat(2,1fr)}.prog-grid{grid-template-columns:1fr}}.dsap-filter{border:1px solid var(--im-card-bd);color:#94a3b8;background:#fffc;border-radius:.75rem;align-items:center;gap:.5rem;margin-bottom:1rem;padding:.55rem .85rem;display:flex}.dsap-filter input{font:inherit;color:var(--im-ink);background:0 0;border:none;outline:none;flex:1;font-size:.875rem}.dsap-filter-count{color:var(--im-accent);white-space:nowrap;background:#f59e0b1f;border-radius:9999px;padding:.15rem .5rem;font-size:.72rem;font-weight:600}.dsap-constraints{flex-direction:column;gap:.5rem;margin:0;padding:0;list-style:none;display:flex}.dsap-constraints li{color:#334155;font-size:.875rem;line-height:1.5;font-family:var(--font-mono);align-items:flex-start;gap:.6rem;display:flex}.dsap-bullet{background:var(--im-accent);border-radius:50%;flex-shrink:0;width:6px;height:6px;margin-top:.5rem}.dsap-example{background:#fefce8b3;border:1px solid #f59e0b33;border-radius:.75rem;margin-bottom:.6rem;padding:.85rem 1rem}.dsap-ex-row{align-items:baseline;gap:.7rem;margin-bottom:.35rem;display:flex}.dsap-ex-k{text-transform:uppercase;letter-spacing:.05em;color:#94a3b8;min-width:52px;font-size:.7rem;font-weight:700}.dsap-ex-row code{font-family:var(--font-mono);color:#92400e;background:#f59e0b1a;border-radius:5px;padding:.1em .45em;font-size:.82rem}.dsap-ex-note{color:#64748b;margin-top:.3rem;font-size:.78rem;font-style:italic}html.dark .dsap-filter{background:#0f172a66;border-color:#4b556380}html.dark .dsap-constraints li{color:#cbd5e1}html.dark .dsap-example{background:#0f172a80;border-color:#f59e0b33}.dsap-testcases{flex-direction:column;gap:.5rem;min-height:0;padding:0 .85rem .85rem;display:flex;overflow:auto}.dsap-test{background:#10b98112;border:1px solid #10b98140;border-radius:.65rem;align-items:center;gap:.65rem;padding:.55rem .75rem;display:flex}.dsap-test.fail{background:#ef444412;border-color:#ef444440}.dsap-test.fail .dsap-test-ic{color:#dc2626;background:#ef444433}.dsap-test-ic{color:#059669;background:#10b98133;border-radius:50%;justify-content:center;align-items:center;width:20px;min-width:20px;height:20px;display:flex}.dsap-test-io{font-family:var(--font-mono);color:#475569;font-size:.74rem}.dsap-test-io b{color:#92400e;font-weight:700}html.dark .dsap-test{background:#064e3b4d;border-color:#10b9814d}html.dark .dsap-test-io{color:#cbd5e1}html.dark .dsap-test-io b{color:#fcd34d}
