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286px;min-height:570px;display:grid}.progression-editor{border-right:1px solid var(--line);min-width:0;padding:12px 24px 24px}.progression-list{border-top:1px solid var(--line)}.progression-chord{border-bottom:1px solid var(--line);cursor:grab;grid-template-columns:42px 38px 112px 94px minmax(160px,1fr) auto;align-items:center;gap:11px;min-height:82px;padding:10px 2px;display:grid;position:relative}.progression-chord:active{cursor:grabbing}.progression-chord.active{background:linear-gradient(90deg, var(--accent), transparent 72%)}@supports (color:color-mix(in lab, red, red)){.progression-chord.active{background:linear-gradient(90deg, color-mix(in srgb, var(--accent) 9%, transparent), transparent 72%)}}.progression-chord.active:before{content:"";background:var(--accent);width:2px;position:absolute;top:9px;bottom:9px;left:-24px}.chord-position{color:var(--faint);font:9px var(--font-geist-mono);align-items:center;gap:3px;display:flex}.chord-position svg{color:var(--line-strong)}.chord-audition{width:36px;height:36px;color:var(--accent);background:var(--accent);place-items:center;display:grid}@supports (color:color-mix(in lab, red, red)){.chord-audition{background:color-mix(in srgb, var(--accent) 7%, var(--surface-2))}}.chord-audition{border:1px solid var(--accent)}@supports (color:color-mix(in lab, red, red)){.chord-audition{border:1px solid color-mix(in srgb, var(--accent) 22%, var(--line))}}.chord-audition{cursor:pointer;border-radius:8px}.chord-audition:hover{background:var(--accent)}@supports (color:color-mix(in lab, red, red)){.chord-audition:hover{background:color-mix(in srgb, var(--accent) 13%, var(--surface-2))}}.chord-identity{min-width:0}.chord-identity strong,.chord-identity span{display:block}.chord-identity strong{letter-spacing:-.035em;font-size:19px}.chord-identity span{color:var(--faint);white-space:nowrap;margin-top:4px;font-size:9px}.chord-duration span{color:var(--faint);margin-bottom:4px;font-size:10px;display:block}.chord-duration select{width:100%;height:34px;color:var(--text);background:var(--surface-2);border:1px solid var(--line);cursor:pointer;border-radius:6px;padding:0 8px;font-size:12px}.chord-note-map{grid-template-columns:repeat(12,1fr);gap:2px;height:30px;display:grid}.chord-note-map span{min-width:12px;color:var(--faint);background:var(--bg-deep);border:1px solid var(--line);font:8px var(--font-geist-mono);border-radius:3px;place-items:center;display:grid}.chord-note-map span.on{color:var(--accent-ink);background:var(--accent);border-color:var(--accent)}.chord-order-actions{gap:3px;display:flex}.chord-order-actions button{width:30px;height:30px;color:var(--muted);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;place-items:center;display:grid}.chord-order-actions button:hover{color:var(--text);background:var(--surface-2);border-color:var(--line)}.chord-order-actions button:last-child:hover{color:#ef8b80}.chord-order-actions button:disabled{cursor:not-allowed;opacity:.28}.progression-empty{text-align:center;place-content:center;min-height:220px;display:grid}.progression-empty strong,.progression-empty span{display:block}.progression-empty span{color:var(--faint);margin-top:8px;font-size:10px}.progression-open-slot{min-height:54px;color:var(--faint);border-bottom:1px solid var(--line);opacity:.55;grid-template-columns:42px 1fr;align-items:center;gap:13px;display:grid}.progression-open-slot>span{text-align:center;font:10px var(--font-geist-mono)}.progression-open-slot p{letter-spacing:.03em;margin:0;font-size:11px}.progression-open-slots{border-bottom:1px solid var(--line);grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;padding:12px 0;display:grid}.progression-open-slots button{min-height:48px;color:var(--faint);background:var(--bg-deep);border:1px dashed var(--line-strong);cursor:pointer;border-radius:7px;grid-template-columns:auto auto;place-content:center;gap:7px;display:grid}.progression-open-slots button:hover{color:var(--accent);border-color:var(--accent)}@supports (color:color-mix(in lab, red, red)){.progression-open-slots button:hover{border-color:color-mix(in srgb, var(--accent) 45%, var(--line))}}.progression-open-slots button span{font:11px var(--font-geist-mono)}.progression-open-slots button small{font-size:11px}.chord-adder{background:var(--bg-deep);border:1px solid var(--line);border-radius:10px;grid-template-columns:150px minmax(190px,1fr) auto;align-items:end;gap:10px;margin-top:18px;padding:17px;display:grid}.chord-adder>div{min-width:0}.chord-adder label{color:var(--faint);margin-bottom:7px;font-size:9px;display:block}.chord-adder select{width:100%;height:43px;color:var(--text);background:var(--surface-2);border:1px solid var(--line);cursor:pointer;border-radius:8px;padding:0 11px}.add-chord{min-height:43px}.progression-sidebar{background:var(--surface-2);flex-direction:column;display:flex}.progression-sidebar>section{padding:25px 22px}.progression-sidebar>section+section{border-top:1px solid var(--line)}.progression-sidebar h2{margin:0;font-size:15px}.progression-sidebar p{color:var(--muted);margin:8px 0 17px;font-size:10px;line-height:1.65}.preset-list{border-top:1px solid var(--line);display:grid}.preset-list button{text-align:left;border:0;border-bottom:1px solid var(--line);cursor:pointer;background:0 0;grid-template-columns:minmax(0,1fr) auto;align-content:center;align-items:center;gap:7px 10px;min-height:82px;padding:11px 4px;display:grid}.preset-list button:hover{color:var(--accent);background:var(--accent)}@supports (color:color-mix(in lab, red, red)){.preset-list button:hover{background:color-mix(in srgb, var(--accent) 5%, transparent)}}.preset-list strong,.preset-list span{display:block}.preset-list .preset-heading{white-space:nowrap;align-items:baseline;gap:8px;min-width:0;display:flex;overflow:hidden}.preset-list .preset-heading strong{flex:none;font-size:13px;line-height:1.35}.preset-list .preset-heading small{min-width:0;color:var(--muted);text-overflow:ellipsis;font-size:11px;line-height:1.35;overflow:hidden}.preset-list .preset-chords{min-width:0;color:var(--faint);font:11px/1.45 var(--font-geist-mono);overflow-wrap:anywhere}.preset-list svg{color:var(--faint);grid-area:1/2/3}.progression-export{margin-top:auto}.progression-export .primary-button,.progression-export .copy-button{width:100%}.progression-export .copy-button{min-height:42px;color:var(--muted);border:1px solid var(--line);cursor:pointer;background:0 0;border-radius:8px;justify-content:center;align-items:center;gap:8px;margin-top:8px;font-size:10px;display:flex}.progression-export .copy-button:hover{color:var(--text);background:var(--surface)}.progression-export small{color:var(--faint);margin-top:14px;font-size:8px;line-height:1.7;display:block}.progression-notice{z-index:90;color:var(--text);background:var(--surface-3);border:1px solid var(--line-strong);box-shadow:0 18px 50px var(--shadow);border-radius:9px;align-items:center;gap:8px;padding:12px 15px;font-size:10px;animation:.25s both toastIn;display:flex;position:fixed;bottom:22px;right:22px}.progression-notice svg{color:var(--success)}.progression-guide{grid-template-columns:.55fr 1.45fr;gap:6vw;padding-block:70px 0;display:grid}.progression-guide h2{letter-spacing:-.05em;margin:0;font-size:clamp(28px,3.5vw,43px)}.progression-guide ol{border-top:1px solid var(--line-strong);margin:0;padding:0;list-style:none}.progression-guide li{border-bottom:1px solid var(--line);grid-template-columns:42px 1fr;gap:14px;min-height:112px;padding:22px 0;display:grid}.progression-guide li>span{color:var(--accent);font:10px var(--font-geist-mono)}.progression-guide strong{font-size:13px}.progression-guide p{color:var(--muted);margin:8px 0 0;font-size:11px;line-height:1.75}.progression-creative-tools{background:var(--surface-2);border-top:1px solid var(--line);padding:34px 30px 30px}.creative-tools-heading{border-bottom:1px solid var(--line-strong);grid-template-columns:minmax(0,1fr) minmax(320px,.7fr);align-items:end;gap:32px;padding-bottom:24px;display:grid}.creative-tools-heading span,.next-chord-panel header span,.cadence-route-panel header span,.voicing-panel header span,.bassline-panel header span{color:var(--accent);font:11px var(--font-geist-mono);letter-spacing:.08em}.creative-tools-heading h2{letter-spacing:-.05em;margin:8px 0 0;font-size:clamp(27px,3vw,40px)}.creative-tools-heading p{color:var(--muted);margin:0;font-size:13px;line-height:1.75}.harmony-route-settings{gap:12px;display:grid}.harmony-route-settings .genre-control{border:0;min-width:0;margin:0;padding:0}.harmony-route-settings .genre-control legend{color:var(--faint);margin-bottom:6px;font-size:11px}.harmony-route-settings .genre-control .segmented-control{width:max-content}.harmony-route-settings .genre-control button{flex:none;min-width:74px}.suggestion-position{border-bottom:1px solid var(--line);grid-template-columns:52px minmax(0,1fr);align-items:center;gap:8px;min-height:64px;display:grid}.suggestion-position>span{color:var(--faint);font-size:12px}.suggestion-position>div{scrollbar-width:thin;gap:4px;padding-block:9px;display:flex;overflow-x:auto}.suggestion-position button{width:max-content;min-width:56px;min-height:50px;color:var(--muted);background:var(--surface);border:1px solid var(--line);cursor:pointer;white-space:nowrap;border-radius:7px;flex:none;grid-template-rows:auto auto;align-content:center;justify-items:center;gap:2px;padding:4px 8px;display:grid}.suggestion-position button span{color:var(--faint);font:10px/1 var(--font-geist-mono)}.suggestion-position button strong{max-width:110px;font:12px var(--font-geist-mono);text-overflow:ellipsis;overflow:hidden}.suggestion-position button.is-active{color:var(--accent-ink);background:var(--accent);border-color:var(--accent)}.suggestion-position button.is-active span{color:currentColor;opacity:.72}.suggestion-position button:disabled{cursor:not-allowed;opacity:.36}.harmony-suggestion-layout,.arrangement-assist-layout{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1.15fr) minmax(340px,.85fr);display:grid}.harmony-suggestion-layout>section,.arrangement-assist-layout>section{min-width:0;padding:27px 0 30px}.harmony-suggestion-layout>section+section,.arrangement-assist-layout>section+section{border-left:1px solid var(--line);padding-left:28px}.harmony-suggestion-layout>section:first-child,.arrangement-assist-layout>section:first-child{padding-right:28px}.next-chord-panel>header,.cadence-route-panel>header,.voicing-panel>header,.bassline-panel>header{justify-content:space-between;align-items:flex-start;gap:16px;min-height:50px;display:flex}.next-chord-panel h3,.cadence-route-panel h3,.voicing-panel h3,.bassline-panel h3{letter-spacing:-.03em;margin:6px 0 0;font-size:19px}.next-chord-panel header>small,.cadence-route-panel header>small{color:var(--faint);white-space:nowrap;font-size:12px}.harmony-candidate-list{scrollbar-width:thin;grid-template-columns:1fr 1fr;gap:6px;max-height:430px;margin-top:16px;padding-right:5px;display:grid;overflow-y:auto}.harmony-candidate-list article{min-width:0;min-height:104px;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:8px;grid-template-rows:auto auto;grid-template-columns:34px 24px auto auto minmax(0,1fr) auto;align-items:center;gap:7px 8px;padding:10px;display:grid}.harmony-candidate-list article:hover{border-color:var(--accent)}@supports (color:color-mix(in lab, red, red)){.harmony-candidate-list article:hover{border-color:color-mix(in srgb, var(--accent) 50%, var(--line))}}.candidate-audition{width:34px;height:34px;color:var(--accent);background:var(--accent);place-items:center;padding:0;display:grid}@supports (color:color-mix(in lab, red, red)){.candidate-audition{background:color-mix(in srgb, var(--accent) 7%, var(--surface-2))}}.candidate-audition{border:1px solid var(--accent)}@supports (color:color-mix(in lab, red, red)){.candidate-audition{border:1px solid color-mix(in srgb, var(--accent) 28%, var(--line))}}.candidate-audition{cursor:pointer;border-radius:7px}.candidate-insert{min-height:36px;color:var(--accent-ink);background:var(--accent);border:1px solid var(--accent);cursor:pointer;white-space:nowrap;border-radius:7px;grid-area:1/6;justify-content:center;align-items:center;gap:4px;padding:0 9px;font-size:11px;font-weight:700;display:inline-flex}.candidate-rank{color:var(--faint);font:10px var(--font-geist-mono)}.harmony-candidate-list article>strong{font:15px var(--font-geist-mono)}.candidate-role{border:1px solid var(--line);min-width:36px;font:10px var(--font-geist-mono);text-align:center;border-radius:5px;padding:4px 5px}.candidate-role.is-tonic{color:var(--success)}.candidate-role.is-predominant{color:#5ea5ca}.candidate-role.is-dominant{color:#e19742}.candidate-role.is-color{color:#b481cf}.harmony-candidate-list .candidate-reason{min-width:0;color:var(--muted);border-top:1px solid var(--line);grid-area:2/1/auto/-1;padding-top:7px;overflow:hidden}@supports (color:color-mix(in lab, red, red)){.harmony-candidate-list .candidate-reason{border-top:1px solid color-mix(in srgb, var(--line) 72%, transparent)}}.harmony-candidate-list 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var(--font-geist-mono);text-align:right}.arrangement-assist-layout{border-bottom:0;grid-template-columns:1fr}.arrangement-assist-layout>section+section{border-top:1px solid var(--line);border-left:0;padding-left:0}.arrangement-assist-layout>section:first-child{padding-right:0}.instrument-switch{background:var(--bg-deep);border:1px solid var(--line);border-radius:8px;padding:3px;display:flex}.instrument-switch button{min-height:32px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:5px;padding:0 9px;font-size:11px}.instrument-switch button.is-active{color:var(--accent-ink);background:var(--accent);font-weight:750}.voicing-chord-tabs{scrollbar-width:thin;gap:5px;margin-top:16px;padding-bottom:7px;display:flex;overflow-x:auto}.voicing-chord-tabs button{width:max-content;min-width:64px;min-height:42px;color:var(--muted);background:var(--surface);border:1px solid var(--line);font:12px 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a{white-space:nowrap;border-radius:7px;font-size:11px}.bass-style-list{flex-wrap:wrap;gap:5px;margin-top:16px;display:flex}.bass-style-list button{min-height:36px;color:var(--muted);background:var(--surface);border:1px solid var(--line);cursor:pointer;border-radius:7px;padding:0 10px;font-size:11px}.bass-style-list button.is-active{color:var(--accent-ink);background:var(--accent);border-color:var(--accent)}.bassline-notes{background:var(--bg-deep);border:1px solid var(--line);scrollbar-width:thin;border-radius:9px;gap:4px;min-height:90px;margin-top:13px;padding:13px;display:flex;overflow-x:auto}.bassline-notes span{text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:6px;place-content:center;gap:5px;min-width:45px;min-height:58px;display:grid}.bassline-notes span.is-chord-start{border-left:2px solid var(--accent)}.bassline-notes small{color:var(--faint);font:9px var(--font-geist-mono)}.bassline-notes strong{font:12px var(--font-geist-mono)}.bassline-actions{grid-template-columns:1fr 1fr 1.25fr;gap:8px;margin-top:12px;display:grid}.bassline-actions button{min-height:44px}@media (max-width:1080px){.export-panel .progression-link{grid-column:1/-1;margin-top:-4px}.progression-context-bar{grid-template-columns:minmax(130px,.75fr) max-content max-content max-content}.progression-body{grid-template-columns:minmax(0,1fr) 250px}.progression-editor{padding-inline:18px}.progression-chord{grid-template-columns:34px 36px 92px 86px minmax(130px,1fr) auto;gap:8px}.progression-chord.active:before{left:-18px}.creative-tools-heading{grid-template-columns:1fr;gap:12px}.suggestion-position-track.is-16{grid-template-columns:repeat(8,minmax(56px,1fr));display:grid;overflow-x:visible}.suggestion-position-track.is-16 button{width:100%}.harmony-suggestion-layout{grid-template-columns:1fr}.harmony-suggestion-layout>section+section{border-top:1px solid 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