@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-space-y-reverse:0;--tw-border-style:solid;--tw-leading:initial;--tw-font-weight:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--container-md:28rem;--container-2xl:42rem;--text-xs:.75rem;--text-xs--line-height:calc(1 / .75);--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--text-lg:1.125rem;--text-lg--line-height:calc(1.75 / 1.125);--text-2xl:1.5rem;--text-2xl--line-height:calc(2 / 1.5);--text-3xl:1.875rem;--text-3xl--line-height:calc(2.25 / 1.875);--text-4xl:2.25rem;--text-4xl--line-height:calc(2.5 / 2.25);--font-weight-medium:500;--font-weight-semibold:600;--leading-tight:1.25;--radius-md:.375rem;--radius-lg:.5rem;--radius-xl:.75rem;--shadow-sm:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--animate-spin:spin 1s linear infinite;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, 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components;@layer utilities{.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.mt-1{margin-top:calc(var(--spacing) * 1)}.mt-2{margin-top:calc(var(--spacing) * 2)}.mt-4{margin-top:calc(var(--spacing) * 4)}.mt-5{margin-top:calc(var(--spacing) * 5)}.mt-6{margin-top:calc(var(--spacing) * 6)}.block{display:block}.flex{display:flex}.grid{display:grid}.h-4{height:calc(var(--spacing) * 4)}.h-5{height:calc(var(--spacing) * 5)}.h-8{height:calc(var(--spacing) * 8)}.h-12{height:calc(var(--spacing) * 12)}.max-h-28{max-height:calc(var(--spacing) * 28)}.min-h-\[220px\]{min-height:220px}.w-4{width:calc(var(--spacing) * 4)}.w-5{width:calc(var(--spacing) * 5)}.w-8{width:calc(var(--spacing) * 8)}.w-12{width:calc(var(--spacing) * 12)}.w-16{width:calc(var(--spacing) * 16)}.w-full{width:100%}.max-w-2xl{max-width:var(--container-2xl)}.max-w-md{max-width:var(--container-md)}.min-w-0{min-width:calc(var(--spacing) * 0)}.shrink-0{flex-shrink:0}.transform{transform:var(--tw-rotate-x,) 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3)}.pt-1{padding-top:calc(var(--spacing) * 1)}.pb-2{padding-bottom:calc(var(--spacing) * 2)}.text-left{text-align:left}.text-2xl{font-size:var(--text-2xl);line-height:var(--tw-leading,var(--text-2xl--line-height))}.text-3xl{font-size:var(--text-3xl);line-height:var(--tw-leading,var(--text-3xl--line-height))}.text-lg{font-size:var(--text-lg);line-height:var(--tw-leading,var(--text-lg--line-height))}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.text-xs{font-size:var(--text-xs);line-height:var(--tw-leading,var(--text-xs--line-height))}.text-\[1\.4rem\]{font-size:1.4rem}.leading-6{--tw-leading:calc(var(--spacing) * 6);line-height:calc(var(--spacing) * 6)}.leading-8{--tw-leading:calc(var(--spacing) * 8);line-height:calc(var(--spacing) * 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var(--line);background:var(--surface);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(var(--glass-blur)) saturate(1.02);backdrop-filter:blur(var(--glass-blur)) saturate(1.02);border-radius:12px}.page-hero{background:linear-gradient(180deg, var(--mark-surface), var(--surface));justify-content:space-between;align-items:flex-start;gap:16px;padding:24px;display:flex}@supports (color:color-mix(in lab, red, red)){.page-hero{background:linear-gradient(180deg, color-mix(in srgb, var(--mark-surface) 34%, var(--surface)), var(--surface))}}.page-hero-title{margin:0;font-size:1.875rem;font-weight:700;line-height:1.25}.page-hero-text{max-width:720px;color:var(--muted);margin-top:8px;font-size:.95rem;line-height:1.7}.section-card{padding:24px}.section-header{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.section-title{margin:0;font-size:1.25rem;font-weight:700;line-height:1.4}.section-subtitle{color:var(--muted);margin-top:6px;font-size:.9rem;line-height:1.6}.list-card{padding:20px;transition:border-color .16s,box-shadow .16s,background .16s,transform .16s}.list-card:hover{border-color:var(--accent)}@supports (color:color-mix(in lab, red, red)){.list-card:hover{border-color:color-mix(in srgb, var(--accent) 22%, var(--line))}}.list-card:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.subtle-tag,.count-tag,.kind-tag{border-radius:999px;align-items:center;padding:4px 10px;font-size:.75rem;font-weight:600;line-height:1.4;display:inline-flex}.subtle-tag,.kind-tag{background:var(--mark-surface);color:var(--accent)}.count-tag{background:var(--danger-surface);color:var(--coral)}.meta-row{flex-wrap:wrap;gap:8px;display:flex}.meta-chip{border:1px solid var(--line);background:var(--paper-strong);min-height:30px;color:var(--muted);border-radius:999px;align-items:center;gap:6px;padding:0 10px;font-size:.8125rem;font-weight:500;line-height:1.4;display:inline-flex}.primary-button,.secondary-button,.ghost-button,.danger-button{border-radius:8px;justify-content:center;align-items:center;gap:8px;min-height:40px;padding:0 16px;font-size:.875rem;font-weight:600;line-height:1;transition:border-color .16s,background .16s,color .16s,box-shadow .16s;display:inline-flex}.primary-button{border:1px solid var(--button);background:var(--button);color:var(--on-button)}.primary-button:hover{border-color:var(--button-hover);background:var(--button-hover);box-shadow:var(--shadow-sm)}.secondary-button{border:1px solid var(--line);background:var(--paper-strong);color:var(--ink)}.secondary-button:hover,.ghost-button:hover{border-color:var(--accent);background:var(--mark-surface);color:var(--accent)}.ghost-button{color:var(--muted);background:0 0;border:1px solid #0000}.danger-button{border:1px solid var(--danger-line);background:var(--danger-surface);color:var(--coral)}.danger-button:hover{border-color:var(--coral);background:var(--danger-surface)}@supports (color:color-mix(in lab, red, red)){.danger-button:hover{background:color-mix(in srgb, var(--danger-surface) 84%, var(--paper-strong))}}.state-banner{border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:.875rem;font-weight:500;line-height:1.6}.state-banner.error{border-color:var(--danger-line);background:var(--danger-surface);color:var(--coral)}.state-banner.info{border-color:var(--accent)}@supports (color:color-mix(in lab, red, red)){.state-banner.info{border-color:color-mix(in srgb, var(--accent) 18%, var(--line))}}.state-banner.info{background:var(--mark-surface);color:var(--accent)}.empty-state,.loading-state{text-align:center;border:1px dashed var(--line);background:var(--surface);border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:280px;padding:32px 24px;display:flex}@supports (color:color-mix(in lab, red, red)){.empty-state,.loading-state{background:color-mix(in srgb, var(--surface) 80%, transparent)}}.empty-state,.loading-state{color:var(--muted)}.empty-state h2,.loading-state h2{color:var(--ink);margin:0;font-size:1.5rem;font-weight:700;line-height:1.4}.toolbar-strip{border:1px solid var(--line);background:var(--surface);border-radius:10px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 16px;display:flex}@supports (color:color-mix(in lab, red, red)){.toolbar-strip{background:color-mix(in srgb, var(--surface) 72%, var(--paper) 28%)}}.practice-shell{background:linear-gradient(180deg, var(--mark-surface), var(--surface));flex-direction:column;min-height:640px;padding:28px;display:flex}@supports (color:color-mix(in lab, red, red)){.practice-shell{background:linear-gradient(180deg, color-mix(in srgb, var(--mark-surface) 18%, var(--surface)), var(--surface))}}.practice-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:20px;padding-bottom:20px;display:flex}.practice-tools{flex-wrap:wrap;gap:8px;display:flex}.practice-tool-button{border:1px solid var(--line);background:var(--paper-strong);min-height:38px;color:var(--muted);border-radius:8px;align-items:center;gap:8px;padding:0 12px;font-size:.875rem;font-weight:600;transition:border-color .16s,background .16s,color .16s;display:inline-flex}.practice-tool-button:hover{border-color:var(--accent);background:var(--mark-surface);color:var(--accent)}.practice-tool-button kbd,.shortcut-key{border:1px solid var(--line);background:var(--paper);min-width:1.75rem;min-height:1.45rem;color:var(--muted);border-radius:6px;justify-content:center;align-items:center;padding:0 .35rem;font-size:.7rem;line-height:1;display:inline-flex}.practice-body{flex:1;align-items:center;padding:32px 0;display:flex}.practice-body>div{width:100%}.practice-footer{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;padding-top:20px;display:flex}.modal-backdrop{z-index:50;background:var(--overlay);justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal-surface{width:100%;max-height:min(720px,100dvh - 32px);box-shadow:var(--shadow-lg);padding:24px;overflow:auto}.settings-grid{gap:20px;display:grid}.config-list{flex-direction:column;gap:12px;display:flex}.config-item{border:1px solid var(--line);background:var(--surface);border-radius:10px;justify-content:space-between;align-items:flex-start;gap:16px;display:flex}@supports (color:color-mix(in lab, red, red)){.config-item{background:color-mix(in srgb, var(--surface) 80%, var(--paper) 20%)}}.config-item{padding:16px}.divider-top{border-top:1px solid var(--line);padding-top:20px}.bg-white\/55,.bg-white\/58,.bg-white\/70{background-color:var(--paper-strong)!important}.hover\:bg-white:hover,.hover\:bg-white\/90:hover{background-color:var(--surface-hover)!important}.text-white{color:var(--on-button)!important}.bg-\[var\(--teal\)\],.bg-\[var\(--coral\)\]{background-color:var(--button)!important}.hover\:bg-\[var\(--teal-dark\)\]:hover,.hover\:bg-\[var\(--button-hover\)\]:hover{background-color:var(--button-hover)!important}@media (max-width:960px){.app-frame{grid-template-columns:88px minmax(0,1fr)}.app-frame .side-label{display:none}.app-sidebar{align-items:center;padding-inline:12px}.sidebar-header,.sidebar-nav,.sidebar-footer{width:100%}.sidebar-header{flex-direction:column;align-items:center}.brand-link,.nav-link,.sidebar-toggle{justify-content:center}.theme-toggle{flex-direction:column}.theme-toggle span{display:none}.page-hero,.practice-header,.practice-footer,.config-item,.section-header{flex-direction:column}}@media (max-width:720px){.app-content{padding:16px}.page-hero,.section-card,.practice-shell,.modal-surface{padding:18px}.page-hero-title{font-size:1.5rem}.practice-body{align-items:flex-start;padding:24px 0}.practice-tools,.meta-row{width:100%}}@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-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-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}@keyframes spin{to{transform:rotate(360deg)}}