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.dock-bar-tip{opacity:1}@keyframes tablet-toast-in{0%{opacity:0;transform:translate(-50%)translateY(-12px)scale(.95)}60%{opacity:1;transform:translate(-50%)translateY(2px)scale(1.02)}to{opacity:1;transform:translate(-50%)translateY(0)scale(1)}}.teach-content-panel{box-shadow:none;border-right:1px solid var(--border-primary);position:relative;padding-bottom:120px!important}.dark .teach-content-panel{box-shadow:inset -4px 0 12px #00000026}.teach-divider{width:6px;transition:background var(--transition-fast);background:0 0;border-radius:3px}.teach-divider--hover{background:var(--accent)}@supports (color:color-mix(in lab, red, red)){.teach-divider--hover{background:color-mix(in srgb, var(--accent) 8%, transparent)}}.teach-divider--dragging{background:var(--accent)}@supports (color:color-mix(in lab, red, red)){.teach-divider--dragging{background:color-mix(in srgb, var(--accent) 12%, transparent)}}.teach-block-reveal{transition:opacity .35s cubic-bezier(.34,1.56,.64,1),transform .35s cubic-bezier(.34,1.56,.64,1)}.teach-block-reveal--visible{opacity:1;transform:translateY(0)scale(1)}.teach-block-reveal--hidden{opacity:0;pointer-events:none;position:absolute;left:-9999px;transform:translateY(10px)scale(.97)}.teach-ready-state{color:var(--text-muted)}.teach-ready-icon{color:var(--text-muted);opacity:.5}.teach-progress-pill{bottom:var(--space-4);left:var(--space-4);font-size:.7rem;font-weight:600;font-family:var(--font-geist-mono,ui-monospace, monospace);font-variant-numeric:tabular-nums;background:var(--bg-toolbar);border:1px solid var(--border-primary);color:var(--text-secondary);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(8px);z-index:5;border-radius:999px;align-items:center;padding:4px 12px;display:inline-flex;position:sticky}.teach-nav-bar{-webkit-backdrop-filter:blur(12px);background:var(--bg-toolbar);border-top:1px solid var(--border-primary);border-radius:var(--radius-lg) var(--radius-lg) 0 0;height:44px}.teach-nav-counter{font-size:.85rem;font-family:var(--font-geist-mono,ui-monospace, monospace);font-variant-numeric:tabular-nums;text-align:center;min-width:4rem;color:var(--text-secondary)}.teach-nav-timer{font-size:1rem;font-family:var(--font-geist-mono,ui-monospace, monospace);font-variant-numeric:tabular-nums;color:var(--text-secondary);letter-spacing:.02em}.teach-nav-bar--tablet{height:52px}.teach-nav-timer--tablet{font-size:1.25rem;font-weight:600}.tablet-teach-content{font-size:1.1rem}.tablet-teach-split-content{background:var(--bg-surface,#fff);border-right:none;padding-bottom:80px}.dark .tablet-teach-split-content{background:var(--bg-surface)}.tablet-teach-split-title{border-bottom:1px solid var(--border-primary);background:var(--bg-surface,#fff);z-index:5;flex-direction:column;gap:2px;padding:16px 16px 12px;display:flex;position:sticky;top:0}.dark .tablet-teach-split-title{background:var(--bg-surface)}.teach-card-block-divider{background:var(--border-primary,#e2e8f0);opacity:.45;height:1px;margin:0 16px}.teach-card-block-item{padding:14px 16px;transition:background .2s;position:relative;overflow-x:auto}.teach-card-block-item--current{background:var(--accent,#3b82f6)}@supports (color:color-mix(in lab, red, red)){.teach-card-block-item--current{background:color-mix(in srgb, var(--accent,#3b82f6) 6%, transparent)}}.teach-card-block-item--current{box-shadow:inset 0 0 0 1px var(--accent,#3b82f6)}@supports (color:color-mix(in lab, red, red)){.teach-card-block-item--current{box-shadow:inset 0 0 0 1px color-mix(in srgb, var(--accent,#3b82f6) 8%, transparent)}}.dark .teach-card-block-item--current{background:#3b82f614}.teach-card-block-meta{align-items:center;gap:8px;margin-bottom:8px;display:flex}.teach-card-block-number{color:var(--text-muted,#94a3b8);font-variant-numeric:tabular-nums;min-width:16px;font-size:11.5px;font-weight:800}.teach-card-block-badge{text-transform:uppercase;letter-spacing:.05em;white-space:nowrap;border-radius:6px;padding:2.5px 8px;font-size:9px;font-weight:700}@media (pointer:coarse) and (max-width:1366px){.teach-split{flex-direction:row}.teach-nav-bar{height:52px}.teach-nav-counter{font-size:1rem}.teach-nav-timer{font-size:1.3rem;font-weight:600}.teach-divider{background:var(--border-primary);width:1px}.teach-content-panel{padding:16px}}.pwa-install-banner{bottom:env(safe-area-inset-bottom,16px);z-index:9999;background:var(--bg-toolbar,#1a1b2e);border:1px solid var(--border-primary,#ffffff1a);-webkit-backdrop-filter:blur(16px);border-radius:14px;justify-content:space-between;align-items:center;gap:16px;width:calc(100% - 32px);min-width:320px;max-width:480px;padding:12px 16px;animation:.4s ease-out pwa-slide-up;display:flex;position:fixed;left:50%;transform:translate(-50%);box-shadow:0 8px 32px #0006}@keyframes pwa-slide-up{0%{opacity:0;transform:translate(-50%)translateY(24px)}to{opacity:1;transform:translate(-50%)translateY(0)}}.pwa-install-content{align-items:center;gap:12px;display:flex}.pwa-install-icon{font-size:1.75rem;line-height:1}.pwa-install-text{flex-direction:column;gap:2px;display:flex}.pwa-install-text strong{color:var(--text-primary,#fff);font-size:.85rem;font-weight:600}.pwa-install-text span{color:var(--text-muted,#ffffff80);font-size:.72rem}.pwa-install-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.pwa-install-btn{background:var(--accent,#2563eb);color:#fff;cursor:pointer;white-space:nowrap;border:none;border-radius:8px;align-items:center;gap:6px;padding:8px 14px;font-size:.78rem;font-weight:600;transition:background .15s;display:flex}.pwa-install-btn:hover{background:var(--accent-hover,#3b5ce4)}.pwa-install-close{width:28px;height:28px;color:var(--text-muted,#fff6);cursor:pointer;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;transition:background .15s;display:flex}.pwa-install-close:hover{background:#ffffff14}@supports (padding:env(safe-area-inset-top)){.teach-nav-bar{padding-bottom:env(safe-area-inset-bottom,0px)}.present-progress-track{bottom:env(safe-area-inset-bottom,0px)}.present-bottom-toolbar{bottom:calc(20px + env(safe-area-inset-bottom,0px))}.sv2-compact.sv2-container,.sv-sidebar,.modal-content-enter{padding-bottom:env(safe-area-inset-bottom,0px)}}@media (min-width:1024px) and (pointer:fine) and (hover:hover){.teach-nav-bar--tablet{height:40px}.teach-nav-counter--tablet{font-size:.78rem}.teach-nav-timer--tablet{font-size:.9rem;font-weight:400}}.present-root{--present-bg:#0f0f1a;--present-text:#e2e8f0;--present-text-soft:#cbd5e1;--present-text-dim:#fff6;--present-text-ghost:#ffffff26;--present-chrome-bg:#ffffff08;--present-chrome-border:#ffffff0f;--present-chrome-hover:#ffffff14;--present-overlay-bg:#0009;--present-panel-bg:#0f0f1af2;--present-panel-border:#ffffff14;--present-panel-shadow:0 8px 32px #00000080;--present-progress-track:#ffffff0f;--present-progress-fill:linear-gradient(90deg, #6366f1, #8b5cf6);--present-accent:#6366f1;--present-block-strong:#fff;--present-block-cell-bg:#ffffff08;--present-block-cell-border:#ffffff0f;--present-block-cell-index:#ffffff4d;--present-block-cell-badge:#ffffff0f;background:var(--present-bg);color:var(--present-text)}.dark .present-root{--present-bg:#0a0a14}.present-timer-pill{top:var(--space-4);right:var(--space-4);z-index:10;font-size:.75rem;font-family:var(--font-geist-mono,ui-monospace, monospace);font-variant-numeric:tabular-nums;color:var(--present-text-soft);background:var(--present-chrome-bg);border:1px solid var(--present-chrome-border);-webkit-backdrop-filter:blur(12px);box-shadow:var(--present-panel-shadow,0 2px 8px #0000000f);border-radius:999px;align-items:center;gap:10px;padding:6px 14px;display:flex;position:absolute}.present-timer-divider{background:var(--present-chrome-border);width:1px;height:14px}.present-close-btn{color:var(--present-text-dim);transition:all var(--transition-fast);border-radius:50%;justify-content:center;align-items:center;padding:4px;display:flex}.present-close-btn:hover{color:var(--present-text);background:var(--present-chrome-hover)}.present-slide-area{flex:1;min-height:0;display:flex;position:relative;overflow:hidden}.present-slide{color:#e2e8f0;flex:1;width:100%;min-height:0;padding:5vh 8vw;font-size:clamp(1.3rem,2.5vw,2.2rem);line-height:1.85;overflow-y:auto}.present-slide-content{color:#e2e8f0}.present-badge{text-transform:uppercase;letter-spacing:.06em;border-radius:6px;margin-bottom:clamp(16px,3vh,32px);padding:6px 16px;font-size:clamp(.7rem,1vw,.9rem);font-weight:700;display:inline-block}.present-block-title{color:#fff;margin:0 0 clamp(20px,4vh,40px);font-size:clamp(2rem,4vw,3.5rem);font-weight:800;line-height:1.2}.present-block-body{color:#cbd5e1;word-wrap:break-word;font-size:clamp(1.2rem,2.2vw,2rem);line-height:1.9}.present-block-body p{margin:0 0 clamp(14px,2.5vh,28px)}.present-block-body ul,.present-block-body ol{margin:0 0 clamp(14px,2.5vh,28px);padding-left:32px}.present-block-body li{margin-bottom:clamp(8px,1.5vh,16px)}.present-block-body strong{color:#fff}.present-block-body a{color:#60a5fa}.present-formula{text-align:center;background:#ffffff08;border-left:4px solid #6366f1;border-radius:10px;margin:32px 0;padding:20px;font-size:clamp(1.5rem,3vw,2.8rem)}.present-code-lang{color:#fff6;text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;font-family:ui-monospace,monospace;font-size:.7rem}.present-code{color:#e2e8f0;background:#00000059;border:1px solid #ffffff0f;border-radius:12px;padding:clamp(16px,3vh,32px) clamp(20px,3vw,36px);font-size:clamp(.9rem,1.6vw,1.4rem);line-height:1.7;overflow-x:auto}.present-qa-badges{flex-wrap:wrap;gap:6px;margin-bottom:16px;display:flex}.present-qa-badge{color:#fbbf24;background:#ffffff14;border-radius:4px;padding:3px 10px;font-size:.7rem;font-weight:600}.present-solution{background:#ffffff08;border-radius:10px;margin-top:20px;padding:14px 18px}.present-solution-toggle{cursor:pointer;color:#fbbf24;background:0 0;border:none;align-items:center;gap:8px;padding:4px 0;font-size:1rem;font-weight:600;display:flex}.present-solution-toggle:hover{color:#fcd34d}.present-solution-body{border-top:1px solid #ffffff0f;margin-top:12px;padding-top:12px;line-height:1.6}.present-solution-body .katex-display{margin:8px 0}.present-solution-body .katex{overflow-wrap:break-word}.present-mcq-options{grid-template-columns:1fr 1fr;gap:clamp(10px,1.5vh,18px);margin-top:clamp(16px,2.5vh,32px);display:grid}.present-mcq-option{background:#ffffff0a;border:1px solid #ffffff14;border-radius:10px;align-items:flex-start;gap:12px;padding:clamp(12px,1.5vh,20px) clamp(14px,2vw,24px);transition:background .15s;display:flex}.present-mcq-option:hover{background:#ffffff14}.present-mcq-label{color:#38bdf8;background:#38bdf826;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;min-width:32px;height:32px;font-size:clamp(.9rem,1.4vw,1.2rem);font-weight:700;display:inline-flex}.present-mcq-text{color:#e2e8f0;font-size:clamp(1.1rem,2vw,1.6rem);line-height:1.5}@media (max-width:900px){.present-mcq-options{grid-template-columns:1fr}}.present-block-body table{border-collapse:collapse;width:100%;margin:20px 0}.present-block-body th{color:#a5b4fc;text-align:left;background:#6366f126;border:1px solid #ffffff14;padding:clamp(10px,1.5vh,18px) clamp(12px,2vw,24px);font-size:clamp(1rem,1.8vw,1.5rem);font-weight:600}.present-block-body td{color:#cbd5e1;border:1px solid #ffffff14;padding:clamp(10px,1.5vh,18px) clamp(12px,2vw,24px);font-size:clamp(1rem,1.8vw,1.5rem)}.present-block-body details{background:#ffffff08;border-radius:10px;margin:14px 0;padding:14px 18px}.present-block-body summary{cursor:pointer;color:#fbbf24;font-weight:600}.present-slide mark,.present-block-body mark{border-radius:3px;padding:1px 4px;color:#fef08a!important;background:#facc1540!important}.present-slide a,.present-block-body a{-webkit-text-decoration:underline #60a5fa66;text-decoration:underline #60a5fa66;color:#60a5fa!important;background:0 0!important}.present-slide code,.present-block-body code{border-radius:4px;padding:2px 6px;font-size:.9em;color:#e2e8f0!important;background:#ffffff14!important}.present-block-body [style*=background],.present-block-body [style*=color]{color:inherit!important;background:0 0!important}.present-block-body [data-search-highlight],.present-block-body mark[style]{color:#fef08a!important;background:#facc1540!important}.present-block-body [data-color],.present-block-body span[style*=background-color]{border-radius:3px;padding:1px 4px;color:#fef08a!important;background:#facc1533!important}.present-block-card{color:var(--present-text);font-size:1.4rem;line-height:1.85}@keyframes present-slideIn{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}.present-block-card strong{color:var(--present-block-strong)}.present-block-card h1,.present-block-card h2,.present-block-card h3,.present-block-card .block-title{color:#fff;margin-bottom:32px;font-weight:800;line-height:1.2}.present-block-card h1{font-size:2.8rem}.present-block-card h2{font-size:2.2rem}.present-block-card h3{font-size:1.6rem}.present-block-card p{margin:0 0 20px}.present-block-card ul,.present-block-card ol{margin:0 0 20px;padding-left:28px}.present-block-card li{margin-bottom:12px}.present-slide .notebook-cell,.present-block-card .notebook-cell{color:var(--present-text);box-shadow:none!important;background:0 0!important;border:none!important;padding:0!important}.present-slide .notebook-cell:before{display:none!important}.present-slide .notebook-cell:hover{box-shadow:none!important;border:none!important}.present-slide .cell-actions,.present-slide .cell-index,.present-slide .drag-handle,.present-slide .block-insert-bar{display:none!important}.present-slide .cell-type-badge,.present-block-card .cell-type-badge{letter-spacing:.06em!important;border-radius:6px!important;margin-bottom:20px!important;padding:5px 14px!important;font-size:.8rem!important;font-weight:700!important}.present-slide .cell-type-badge[data-type=concept],.present-block-card .cell-type-badge[data-type=concept]{color:#60a5fa!important;background:#3b82f626!important}.present-slide .cell-type-badge[data-type=formula],.present-block-card .cell-type-badge[data-type=formula]{color:#c084fc!important;background:#a855f726!important}.present-slide .cell-type-badge[data-type=example],.present-block-card .cell-type-badge[data-type=example]{color:#4ade80!important;background:#22c55e26!important}.present-slide .cell-type-badge[data-type=gateqa],.present-block-card .cell-type-badge[data-type=gateqa]{color:#fb923c!important;background:#f9731626!important}.present-slide .cell-type-badge[data-type=warning],.present-block-card .cell-type-badge[data-type=warning]{color:#fbbf24!important;background:#f59e0b26!important}.present-slide .cell-type-badge[data-type=note],.present-block-card .cell-type-badge[data-type=note]{color:#818cf8!important;background:#6366f126!important}.present-slide .cell-type-badge[data-type=code],.present-block-card .cell-type-badge[data-type=code]{color:#22d3ee!important;background:#06b6d426!important}.present-block-card .cell-index{color:var(--present-block-cell-index)}.present-slide .katex-display,.present-slide .formula-render,.present-slide .math-rendered.math-display,.present-block-card .katex-display,.present-block-card .formula-render,.present-block-card .math-rendered.math-display{background:#ffffff08;border-left:4px solid #6366f1;border-radius:12px;margin:32px 0;padding:24px;font-size:2rem}.present-slide .katex,.present-slide .math-rendered,.present-block-card .katex,.present-block-card .math-rendered{font-size:1.3em}.present-slide pre,.present-block-card pre{font-size:1.1rem;line-height:1.7;overflow-x:auto;background:#0000004d!important;border:1px solid #ffffff0f!important;border-radius:12px!important;padding:24px!important}.present-block-card table{border-collapse:collapse;width:100%;margin:16px 0}.present-block-card th{color:#a5b4fc;text-align:left;background:#6366f126;border:1px solid #ffffff14;padding:10px 14px;font-weight:600}.present-block-card td{color:#cbd5e1;border:1px solid #ffffff14;padding:10px 14px}.present-block-card details{background:#ffffff08;border-radius:8px;margin:12px 0;padding:12px 16px}.present-block-card summary{cursor:pointer;color:#fbbf24;font-weight:600}.present-block-card a{color:#fbbf24}.present-block-card .page-link{color:#60a5fa}.present-block-reveal{transition:opacity .5s cubic-bezier(.16,1,.3,1),transform .5s cubic-bezier(.16,1,.3,1)}.present-block-reveal--visible{opacity:1;transform:none}.present-block-reveal--hidden{display:none}.present-nav-hint{text-align:center;color:var(--present-text-dim);padding:var(--space-2) 0;pointer-events:none;font-size:.7rem}.present-progress-track{background:var(--present-progress-track);height:3px;position:absolute;bottom:0;left:0;right:0}.present-progress-bar{background:linear-gradient(90deg,#6366f1,#8b5cf6);height:100%;transition:width .3s}.present-tb-btn{color:#ffffffb3;cursor:pointer;background:#ffffff0f;border:1px solid #ffffff1a;border-radius:50%;justify-content:center;align-items:center;width:40px;height:40px;transition:all .15s;display:flex}.present-tb-btn:hover{color:#fff;background:#6366f133}.present-tb-btn:disabled{opacity:.3;cursor:not-allowed}.present-tb-btn:disabled:hover{color:#ffffffb3;background:#ffffff0f}.ctx-menu{background:var(--bg-toolbar-solid);border:1px solid var(--border-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(12px)}.ctx-menu-item{width:100%;height:36px;color:var(--text-secondary);text-align:left;transition:background var(--transition-fast), color var(--transition-fast);align-items:center;gap:10px;padding:0 12px;font-size:.78rem;display:flex}.ctx-menu-item:hover{background:var(--bg-surface-hover);color:var(--text-primary)}.ctx-menu-item-icon{color:var(--text-tertiary);flex-shrink:0}.ctx-menu-item:hover .ctx-menu-item-icon{color:var(--text-secondary)}.ctx-menu-item--disabled{opacity:.3;cursor:not-allowed;pointer-events:none}.ctx-menu-item--danger{color:var(--danger)}.ctx-menu-item--danger:hover{color:#ef4444;background:#ef444414}.ctx-menu-item--danger .ctx-menu-item-icon{color:var(--danger)}.ctx-menu-shortcut{font-size:.6rem;font-family:var(--font-geist-mono,ui-monospace, monospace);color:var(--text-muted)}.ctx-menu-separator{background:var(--border-secondary);height:1px;margin:4px 8px}.practice-topbar{height:44px;padding:0 var(--space-4);border-bottom:1px solid var(--border-primary);background:var(--bg-surface);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);flex-shrink:0;justify-content:space-between;align-items:center;display:flex}.practice-close-btn{border-radius:var(--radius-md);width:28px;height:28px;color:var(--text-muted);cursor:pointer;transition:all var(--transition-fast);background:0 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.2s;display:flex}.db__tdot--done{color:#22c55e;background:#22c55e14;border-color:#22c55e}.db__track-days{justify-content:center;gap:8px;display:flex}.db__wday{flex-direction:column;align-items:center;gap:4px;min-width:26px;display:flex}.db__wday-ltr{font-size:var(--font-xs);color:var(--text-muted);font-weight:500}.db__wday-dot{background:#0000000f;border-radius:50%;width:10px;height:10px;transition:all .2s}:root[data-theme=dark] .db__wday-dot{background:#ffffff14}.db__wday--done .db__wday-dot{background:#22c55e}.db__wday--today .db__wday-ltr{color:var(--text-primary);font-weight:700}.db__wday--today .db__wday-dot{background:0 0;border:2px solid #3b82f6}.db__wday--today.db__wday--done .db__wday-dot{background:#22c55e;border-color:#22c55e}.db__track-badge{text-align:left;align-items:center;gap:8px;display:flex}.db__track-badge-icon{color:#eab308;flex-shrink:0}.db__track-badge-name{font-size:var(--font-sm);color:var(--text-primary);font-weight:600;display:block}.db__track-badge-desc{font-size:var(--font-xs);color:var(--text-muted);font-weight:400;display:block}.db__track-bar{border-radius:var(--radius-sm);background:#0000000f;width:100%;height:5px;overflow:hidden}:root[data-theme=dark] .db__track-bar{background:#ffffff14}.db__track-fill{border-radius:var(--radius-sm);background:#3b82f6;height:100%;transition:width .5s}.db__track-fill--gold{background:#eab308}.db__track-text{font-size:var(--font-xs);color:var(--text-muted);align-items:center;gap:4px;font-weight:500;display:flex}.db__paths{flex-direction:column;gap:12px;display:flex}.db__section-title{font-size:var(--font-sm);color:var(--text-primary);letter-spacing:-.01em;font-weight:600}.db__see-all{font-size:var(--font-xs);color:#3b82f6;cursor:pointer;border-radius:var(--radius-md);background:0 0;border:none;align-items:center;gap:4px;padding:4px 8px;font-weight:500;transition:all .15s;display:flex}.db__see-all:hover{background:#3b82f60f}.db__paths-grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.db__lp{background:var(--bg-elevated);border:1px solid var(--border-primary);border-left:3px solid var(--accent,var(--border-primary));cursor:pointer;color:var(--text-primary);text-align:left;width:100%;box-shadow:var(--shadow-rest);border-radius:8px;flex-direction:column;gap:8px;padding:16px;transition:all .15s;display:flex}.db__lp:hover{box-shadow:var(--shadow-raised);border-color:var(--accent,#3b82f6)}@supports (color:color-mix(in lab, red, red)){.db__lp:hover{border-color:color-mix(in srgb, var(--accent,#3b82f6) 40%, var(--border-primary))}}.db__lp:hover{border-left-color:var(--accent,#3b82f6)}:root[data-theme=dark] .db__lp{box-shadow:var(--shadow-rest)}:root[data-theme=dark] .db__lp:hover{box-shadow:var(--shadow-raised)}.db__lp:hover .db__lp-icon{transform:scale(1.05)}.db__lp--done{border-left-color:#22c55e}.db__lp-top{justify-content:space-between;align-items:center;display:flex}.db__lp-icon{border-radius:var(--radius-md);background:var(--accent,#6b7280);justify-content:center;align-items:center;width:32px;height:32px;display:flex}@supports (color:color-mix(in lab, red, red)){.db__lp-icon{background:color-mix(in srgb, var(--accent,#6b7280) 8%, transparent)}}.db__lp-icon{color:var(--accent,var(--text-muted));transition:transform .2s}.db__lp-pct{font-size:var(--font-xs);color:var(--text-muted);font-weight:700}.db__lp-name{font-size:var(--font-sm);color:var(--text-primary);letter-spacing:-.01em;margin:0;font-weight:700}.db__lp-count{font-size:var(--font-xs);color:var(--text-muted);font-weight:400}.db__lp-diffs{gap:8px;display:flex}.db__ldiff{font-size:var(--font-xs);border-radius:var(--radius-sm);letter-spacing:.03em;padding:1px 6px;font-weight:600}.db__ldiff--e{color:#16a34a;background:#22c55e14}.db__ldiff--m{color:#ca8a04;background:#eab30814}.db__ldiff--h{color:#dc2626;background:#ef444414}.db__lp-bar{background:#0000000f;border-radius:2px;height:4px;overflow:hidden}:root[data-theme=dark] .db__lp-bar{background:#ffffff0f}.db__lp-fill{border-radius:2px;height:100%;transition:width .4s}.db__lp-foot{justify-content:space-between;align-items:center;margin-top:2px;display:flex}.db__lp-solved{font-size:var(--font-xs);color:var(--text-primary);font-weight:600}.db__lp-cta{font-size:var(--font-xs);color:#3b82f6;align-items:center;gap:4px;font-weight:600;transition:all .15s;display:flex}.db__lp:hover .db__lp-cta{color:#2563eb}.db__lp-cta--done{color:#22c55e}.db__recent{flex-direction:column;gap:8px;display:flex}.db__recent-list{flex-direction:column;gap:2px;display:flex}.db__rec{font-size:var(--font-sm);border-radius:6px;align-items:center;gap:8px;padding:6px 8px;transition:background .15s;display:flex}.db__rec:hover{background:var(--bg-elevated)}.db__rec-icon{color:#22c55e;flex-shrink:0}.db__rec-name{color:var(--text-primary);text-transform:capitalize;flex:1;font-weight:500}.db__rec-time{font-size:var(--font-xs);color:var(--text-muted)}.db__foot{border-top:1px solid var(--border-primary);flex-direction:column;gap:4px;margin-top:8px;padding-top:12px;display:flex}.db__foot-bar{background:#0000000a;border-radius:2px;height:3px;overflow:hidden}:root[data-theme=dark] .db__foot-bar{background:#ffffff0d}.db__foot-fill{background:#22c55e;border-radius:2px;height:100%;transition:width .6s}.db__foot-text{font-size:var(--font-xs);color:var(--text-muted);text-align:center;font-weight:400}@media (max-width:1024px){.db{padding:24px 24px 40px}.db__paths-grid{grid-template-columns:repeat(2,1fr)}.db__track{grid-template-columns:1fr 1fr}.db__track-card--week{grid-column:1/-1}}@media (max-width:767px){.db{gap:12px;padding:20px 16px 36px}.db__hi{font-size:var(--font-base)}.db__top-right{flex-direction:column-reverse;align-items:flex-end}.db__track{grid-template-columns:1fr}.db__track-card--week{grid-column:auto}.db__paths-grid{grid-template-columns:1fr}.db__hero{flex-direction:column;align-items:flex-start;gap:16px}.db__hero-btn{justify-content:center;width:100%}.db__stats-bar{flex-wrap:wrap;width:100%}.db__stat{padding:4px 8px}.db__stat-sep{display:none}}@property --tw-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-z{syntax:"*";inherits:false;initial-value:0}@property --tw-scale-x{syntax:"*";inherits:false;initial-value:1}@property --tw-scale-y{syntax:"*";inherits:false;initial-value:1}@property --tw-scale-z{syntax:"*";inherits:false;initial-value:1}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}@property --tw-duration{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}