:root{--light: #faf8f4;--dark: #1d1b18;--surface-light: #ede6db;--surface-dark: #2f2b26;--accent-light: #1c5d99;--accent-dark: #93c5ee;--accent-hover-light: #164a7a;--accent-hover-dark: #b3d6f3;--knopf-light: #1c5d99;--knopf-hover-light: #164a7a;--border-light: rgb(74 56 30 / .2);--border-dark: rgb(242 236 226 / .15);--stone-50: #faf8f4;--stone-100: #f2ede5;--stone-200: #e6e0d5;--stone-300: #d9d1c4;--stone-400: #ada496;--stone-500: #6b6256;--stone-600: #564e44;--stone-700: #3d3730;--stone-800: #2f2b26;--stone-900: #26231f;--stone-950: #1a1612;--emerald-500: #5e9c5a;--red-500: #d9604a;--yellow-500: #eab308;--bg: var(--light);--bg-surface: var(--surface-light);--bg-card: var(--light);--fg: var(--stone-900);--fg-body: var(--stone-700);--fg-muted: #564e44;--fg-strong: var(--stone-900);--accent: var(--accent-light);--accent-hover: var(--accent-hover-light);--knopf: var(--knopf-light);--knopf-hover: var(--knopf-hover-light);--border: var(--border-light);--border-card: var(--stone-200);--key-bg: var(--light);--key-fg: var(--stone-900);--key-border: var(--stone-200);--key-shadow: 0 1px 0 0 var(--stone-200);--kbd-wrap-bg: var(--stone-300);--kbd-wrap-border: var(--stone-400);--zone-pinky-l: #fee2e2;--zone-ring-l: #fed7aa;--zone-middle-l: #fef9c3;--zone-index-l: #d1fae5;--zone-thumb-l: #e0f2fe;--zone-index-r: #cffafe;--zone-middle-r: #fef9c3;--zone-ring-r: #fed7aa;--zone-pinky-r: #fee2e2;--zf-content-max-width: 1080px;--mark: #983c0d;--mark-soft: rgb(152 60 13 / .1);--mastery-geht-bg: #fef3c7;--mastery-geht-bd: #fcd34d;--mastery-wackelt-bg: #f59e0b;--mastery-wackelt-bd: #d97706;--mastery-wackelt-fg: #1c1917;--mastery-ueben-bg: #983c0d;--mastery-ueben-bd: #7a300a;--mastery-ueben-fg: #ffffff}.dark{--mark: #eaa968;--mark-soft: rgb(234 169 104 / .15);--mastery-geht-bg: #3a2f1c;--mastery-geht-bd: #6b5428;--mastery-wackelt-bg: #8a6420;--mastery-wackelt-bd: #b0822c;--mastery-wackelt-fg: #f2ede5;--mastery-ueben-bg: #eaa968;--mastery-ueben-bd: #f0c08e;--mastery-ueben-fg: #1a1612;--bg: var(--dark);--bg-surface: var(--surface-dark);--bg-card: var(--stone-800);--fg: #f2ede5;--fg-body: var(--stone-300);--fg-muted: #ada496;--fg-strong: #f2ede5;--accent: var(--accent-dark);--accent-hover: var(--accent-hover-dark);--knopf: var(--accent-dark);--knopf-hover: var(--accent-hover-dark);--border: var(--border-dark);--border-card: var(--stone-700);--key-bg: var(--stone-800);--key-fg: #f2ede5;--key-border: var(--stone-700);--key-shadow: 0 1px 0 0 var(--stone-900);--kbd-wrap-bg: var(--stone-900);--kbd-wrap-border: var(--stone-700);--zone-pinky-l: #44171a;--zone-ring-l: #44291a;--zone-middle-l: #3c3a1a;--zone-index-l: #1a3a2a;--zone-thumb-l: #1a2e3a;--zone-index-r: #1a3438;--zone-middle-r: #3c3a1a;--zone-ring-r: #44291a;--zone-pinky-r: #44171a}.zf-app{font-family:var(--font-sans);-webkit-font-smoothing:antialiased;font-size:16px;line-height:1.6}.zf-app *,.zf-app *:before,.zf-app *:after{box-sizing:border-box}.zf-app a{color:inherit}.zf-app button{font-family:inherit;cursor:pointer}.zf-app h1,.zf-app h2,.zf-app h3,.zf-app h4{color:var(--fg-strong);margin:0 0 .5em;line-height:1.2;font-weight:700;letter-spacing:-.01em}.zf-app h1{font-size:clamp(1.875rem,1rem + 2.5vw,2.75rem);letter-spacing:-.02em}.zf-app h2{font-size:clamp(1.4rem,.9rem + 1.4vw,2rem)}.zf-app h3{font-size:1.15rem;font-weight:600}.zf-app h4{font-size:.95rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--fg-muted)}.zf-app p{margin:0 0 1rem;line-height:1.625}.zf-app code{font-family:var(--font-mono);font-size:.9em;background:#4f8cc61a;padding:.125em .4em;border-radius:6px}.dark .zf-app code{background:#93c5ee1f}.zf-app .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:12px;border:2px solid var(--knopf);background:var(--knopf);color:var(--light);font-weight:600;font-size:14px;text-decoration:none;transition:background-color .15s,border-color .15s}.dark .zf-app .btn{color:var(--stone-900)}.zf-app .btn:hover{background:var(--knopf-hover);border-color:var(--knopf-hover)}.zf-app .btn--ghost{background:transparent;color:var(--fg);border-color:var(--border-card)}.zf-app .btn--ghost:hover{background:var(--bg-surface);border-color:var(--border-card);color:var(--fg)}.dark .zf-app .btn--ghost{color:var(--fg)}.zf-app .btn svg{width:16px;height:16px}.zf-app .btn.is-active{background:var(--knopf);border-color:var(--knopf);color:var(--light);cursor:default}.dark .zf-app .btn.is-active{color:var(--stone-900)}.zf-app .grid{display:grid}.zf-app .panel{background:transparent}.zf-app .eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--accent);letter-spacing:.06em;text-transform:uppercase;margin-bottom:8px}.zf-app .lead{font-size:1.05rem;color:var(--fg-body);max-width:60ch}.zf-app .stat{display:flex;flex-direction:column;border:1px solid var(--border-card);border-radius:12px;overflow:hidden;background:var(--bg-card)}.zf-app 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.text-stream-line--peek-2{white-space:pre-wrap;word-break:break-word;overflow-wrap:anywhere;height:auto;min-height:var(--zf-line-h);overflow:visible;text-overflow:clip}.zf-app .text-stream-line--peek-1,.zf-app .text-stream-line--peek-2{color:var(--stone-400)}.dark .zf-app .text-stream-line--peek-1,.dark .zf-app .text-stream-line--peek-2{color:var(--stone-600)}.zf-app .text-stream-line--peek-2{opacity:.6}.zf-app .text-stream-line .ch-done{color:var(--fg-strong)}.zf-app .text-stream-line .ch-error{color:#a6311e;background:#d9604a26;border-radius:3px}.dark .zf-app .text-stream-line .ch-error{color:#f29a88;background:#d9604a33}.zf-app .text-stream-line .ch-current{padding:0 1px;background:var(--accent);color:var(--light);border-radius:3px;animation:zfBlink 1.1s infinite}.dark .zf-app .text-stream-line .ch-current{color:var(--stone-900)}.zf-app .text-stream-line .ch-space{display:inline-block;min-width:.55em}.zf-app .text-stream-line .ch-space.ch-error{background:#d9604a33}.zf-app 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.ch-enter-prompt.is-active{background:var(--accent);color:var(--light);animation:zfEnterPulse 1.2s ease-in-out infinite}.dark .zf-app .text-stream-line .ch-enter-prompt.is-active{color:var(--stone-900)}@keyframes zfEnterPulse{0%,to{opacity:1}50%{opacity:.55}}.zf-app .text-stream-flow.is-paused{opacity:.55}.zf-app .text-stream-flow.is-paused .ch-current{animation:none}.zf-app .kbd-shell{container-type:inline-size;width:100%;display:flex;flex-direction:column;align-items:center;gap:16px}.zf-app .kbd-wrap{--zf-kbd-unit: clamp(36px, 5.2cqi, 48px);background:var(--kbd-wrap-bg);border:1px solid var(--kbd-wrap-border);border-radius:16px;padding:28px 24px;display:flex;flex-direction:column;gap:8px;align-items:center;width:100%;max-width:var(--zf-content-max-width);margin:0 auto}.zf-uebung{--zf-uebung-einheit: clamp(36px, 4.3vw, 48px);--zf-uebung-breite: calc(var(--zf-uebung-einheit) * 16.625 + 46px)}.zf-uebung .kbd-wrap{--zf-kbd-unit: var(--zf-uebung-einheit);width:auto;max-width:100%;padding:22px}.zf-app .kbd-hint{display:none}@container (max-width: 679px){.zf-app .kbd-wrap{display:none}.zf-app .kbd-hint{display:block;width:100%;max-width:480px;margin:0;padding:20px 24px;background:var(--kbd-wrap-bg);border:1px dashed var(--kbd-wrap-border);border-radius:12px;color:var(--fg-muted);font-size:13px;line-height:1.5;text-align:center}}.zf-app .kbd-wrap .kbd-row{flex-shrink:0}.zf-app .kbd-row{display:flex;gap:calc(var(--zf-kbd-unit) * .125)}.zf-app .kbd-key{--w: var(--zf-kbd-unit);width:var(--w);min-width:var(--w);height:var(--zf-kbd-unit);border-radius:8px;background:var(--key-bg);color:var(--key-fg);border:1px solid var(--key-border);box-shadow:var(--key-shadow);display:inline-flex;flex-direction:column;align-items:flex-start;justify-content:flex-end;padding:4px 8px;font-family:var(--font-mono);font-size:calc(var(--zf-kbd-unit) * .29);font-weight:600;position:relative;transition:background .12s,color .12s,transform 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.kbd-key.next{background:var(--accent);color:var(--light);border-color:var(--accent);box-shadow:0 0 0 4px #4f8cc633,0 1px 0 0 var(--accent-hover);animation:zfPulseKey 1.4s ease-in-out infinite}.dark .zf-app .kbd-key.next{color:var(--stone-900);box-shadow:0 0 0 4px #93c5ee33,0 1px 0 0 var(--accent-hover-dark)}.zf-app .kbd-key.next .top,.zf-app .kbd-key.next .altgr{color:#ffffffd9;opacity:1}.dark .zf-app .kbd-key.next .top,.dark .zf-app .kbd-key.next .altgr{color:#0c0a09b3;opacity:1}.zf-app .kbd-key.caps-active{background:#c97e2c;color:#fff;border-color:#c97e2c;box-shadow:0 0 0 4px #c97e2c40,0 1px #a8641f;animation:zfPulseKey 1.4s ease-in-out infinite}.zf-app .kbd-key.caps-active .top,.zf-app .kbd-key.caps-active .bot{color:#fff;opacity:1}.zf-app .kbd-key.pressed .altgr{color:#ffffffd9;opacity:1}.dark .zf-app .kbd-key.pressed .altgr{color:#0c0a09b3}.zf-app .kbd-key.pressed{transform:translateY(1px);box-shadow:none;background:var(--accent);color:var(--light);border-color:var(--accent)}.dark .zf-app .kbd-key.pressed{color:var(--stone-900)}.zf-app .kbd-key--unavailable{opacity:.45}.zf-app .kbd-key--unavailable.next{opacity:1}.zf-app .kbd-wrap--blind .kbd-key:not(.next):not(.pressed){color:transparent;background:var(--key-bg);border-color:var(--key-border)}.zf-app .kbd-wrap--blind .kbd-key:not(.next):not(.pressed) .top,.zf-app .kbd-wrap--blind .kbd-key:not(.next):not(.pressed) .bot,.zf-app .kbd-wrap--blind .kbd-key:not(.next):not(.pressed) .altgr{color:transparent}.zf-app .kbd-wrap--blind .kbd-key.pressed,.zf-app .kbd-wrap--blind .kbd-key.pressed .top,.zf-app .kbd-wrap--blind .kbd-key.pressed .bot,.zf-app .kbd-wrap--blind .kbd-key.pressed .altgr{color:var(--light)}.dark .zf-app .kbd-wrap--blind .kbd-key.pressed,.dark .zf-app .kbd-wrap--blind .kbd-key.pressed .top,.dark .zf-app .kbd-wrap--blind .kbd-key.pressed .bot,.dark .zf-app .kbd-wrap--blind .kbd-key.pressed .altgr{color:var(--stone-900)}@keyframes zfPulseKey{0%,to{box-shadow:0 0 0 4px #4f8cc633,0 1px 0 0 var(--accent-hover)}50%{box-shadow:0 0 0 8px #4f8cc61a,0 1px 0 0 var(--accent-hover)}}.zf-app .zones-on .kbd-key.zone-pinky-l{background:var(--zone-pinky-l)}.zf-app .zones-on .kbd-key.zone-ring-l{background:var(--zone-ring-l)}.zf-app .zones-on .kbd-key.zone-middle-l{background:var(--zone-middle-l)}.zf-app .zones-on .kbd-key.zone-index-l{background:var(--zone-index-l)}.zf-app .zones-on .kbd-key.zone-thumb{background:var(--zone-thumb-l)}.zf-app .zones-on .kbd-key.zone-index-r{background:var(--zone-index-r)}.zf-app .zones-on .kbd-key.zone-middle-r{background:var(--zone-middle-r)}.zf-app .zones-on .kbd-key.zone-ring-r{background:var(--zone-ring-r)}.zf-app .zones-on .kbd-key.zone-pinky-r{background:var(--zone-pinky-r)}.zf-app .zones-on .kbd-key.next{background:var(--accent)}.dark .zf-app .zones-on .kbd-key{color:var(--fg)}.zf-app .finger-cards{display:none}.zf-app .kbd-shell.fingers-on .finger-cards{display:grid;grid-template-columns:minmax(0,1fr) minmax(90px,150px) minmax(0,1fr);align-items:end;gap:16px;width:100%;max-width:var(--zf-content-max-width)}.zf-uebung .kbd-shell.fingers-on .finger-cards{width:var(--zf-uebung-breite);max-width:100%}.zf-app .finger-hand-name{display:block;margin-bottom:6px;font-family:var(--font-mono);font-size:10px;font-weight:500;letter-spacing:.11em;text-transform:uppercase;color:var(--stone-500)}.zf-app .finger-hand-name--rechts{text-align:right}.dark .zf-app .finger-hand-name{color:var(--stone-400)}.zf-app .finger-hand-reihe{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.zf-app .finger-card{height:40px;min-width:0;display:flex;align-items:center;justify-content:center;border-radius:8px;border:1px solid var(--key-border);background:var(--key-bg);color:var(--key-fg);font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:box-shadow .12s ease,font-weight .12s ease}.zf-app .kbd-shell.zones-on .finger-card.zone-pinky-l{background:var(--zone-pinky-l)}.zf-app .kbd-shell.zones-on .finger-card.zone-ring-l{background:var(--zone-ring-l)}.zf-app .kbd-shell.zones-on .finger-card.zone-middle-l{background:var(--zone-middle-l)}.zf-app .kbd-shell.zones-on .finger-card.zone-index-l{background:var(--zone-index-l)}.zf-app .kbd-shell.zones-on .finger-card.zone-thumb{background:var(--zone-thumb-l)}.zf-app .kbd-shell.zones-on .finger-card.zone-index-r{background:var(--zone-index-r)}.zf-app .kbd-shell.zones-on .finger-card.zone-middle-r{background:var(--zone-middle-r)}.zf-app .kbd-shell.zones-on .finger-card.zone-ring-r{background:var(--zone-ring-r)}.zf-app .kbd-shell.zones-on .finger-card.zone-pinky-r{background:var(--zone-pinky-r)}.zf-app .finger-card.next{font-weight:700;box-shadow:0 0 0 2px var(--accent)}@container (max-width: 679px){.zf-app .kbd-shell.fingers-on .finger-cards{display:none}}.zf-app .node{display:flex;flex-direction:column;gap:8px;padding:14px 16px;border-radius:12px;border:1px solid var(--border-card);background:var(--bg-card);transition:border-color .15s;cursor:pointer;text-align:left;font:inherit;color:inherit;position:relative}.zf-app .node:hover{border-color:var(--accent)}.zf-app{--zf-acc-color: #36703c}.dark .zf-app{--zf-acc-color: #a3d494}.zf-app .duration-pill--active{background:var(--accent);border-color:var(--accent);color:var(--light)}.dark .zf-app .duration-pill--active{color:var(--stone-900)}.zf-app .row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.zf-app .col{display:flex;flex-direction:column;gap:12px}.zf-app .muted{color:var(--fg-muted);font-size:13px}.zf-app .mono{font-family:var(--font-mono)}.zf-app .tag{display:inline-flex;align-items:center;gap:4px;padding:3px 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