:root{color-scheme:light;--bg:#E7ECEF;--surface:#fff;--surface-2:#f4f7f9;--ink:#20364F;--muted:#566b7b;--line:#cbd6df;--header:rgba(231,236,239,.97);--accent:#274C77;--icy:#A3CEF1;--shadow:0 12px 35px #20364f0c}
html[data-theme=dark]{color-scheme:dark;--bg:#101D2C;--surface:#182B43;--surface-2:#203650;--ink:#E7ECEF;--muted:#b4c5d3;--line:#344b63;--header:rgba(16,29,44,.97);--accent:#a3cef1;--shadow:0 12px 35px #0002}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,Segoe UI,sans-serif}button,input,select,textarea{font:inherit}a{color:var(--accent)}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.6;cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #6096ba;outline-offset:3px}[hidden]{display:none!important}main{max-width:1180px;margin:auto;padding:44px 24px 30px}.hero{display:grid;grid-template-columns:1fr 230px;align-items:center;gap:40px;padding:15px 0 42px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:.15em;color:var(--accent);margin:0 0 15px}h1{font-size:clamp(42px,6vw,70px);letter-spacing:-.05em;line-height:1.06;margin:0 0 22px;font-weight:850}.intro{font-size:21px;max-width:640px;margin:0 0 8px}.muted{color:var(--muted)}.hero .muted{margin:0;font-size:15px}.record{width:220px;height:220px;border-radius:50%;background:repeating-radial-gradient(circle,#182b43 0 2px,#27425e 3px 4px);box-shadow:14px 18px 0 #6096ba20;display:grid;place-items:center;transform:rotate(12deg);border:6px solid #16283d}.record-label{background:#a3cef1;width:102px;height:102px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#17324d;text-align:center;font-size:13px;line-height:1.1;font-weight:900;letter-spacing:.06em}.record-label i{width:9px;height:9px;background:#14293e;border-radius:50%;margin:8px}.record-label small{font-size:8px}.card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow)}.section-heading,.form-bottom,.result-head,.toolbar{display:flex;gap:18px;align-items:center;justify-content:space-between}.section-heading{margin-bottom:24px}h2{margin:0;font-size:25px;letter-spacing:-.03em}.tag{font-size:12px;padding:5px 11px;background:var(--surface-2);border-radius:20px;color:var(--muted);white-space:nowrap}.form-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:18px}label{display:block;font-size:13px;font-weight:750;margin-bottom:8px}input,select{width:100%;height:52px;padding:0 13px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);color:var(--ink);min-width:0}.form-bottom{margin-top:22px}.form-bottom p{color:var(--muted);font-size:13px;margin:0}.primary{display:inline-flex;gap:24px;justify-content:center;align-items:center;min-height:48px;padding:12px 20px;border:0;border-radius:10px;background:#274c77;color:#fff;font-weight:750;text-decoration:none;font-size:14px}.primary:hover{background:#34618f;color:#fff}html[data-theme=dark] .primary{background:#a3cef1;color:#14293e}html[data-theme=dark] .primary:hover{background:#bfdef7}.secondary{padding:9px 14px;border:1px solid var(--line);border-radius:9px;background:var(--surface-2);color:var(--ink);font-weight:650;font-size:13px}.how{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;margin-top:36px}.how article{padding:10px 0}.how span{color:var(--accent);font-size:12px;font-weight:800}.how h3{font-size:17px;margin:8px 0}.how p{font-size:14px;color:var(--muted);margin:0}footer{font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding:24px 0 0;margin-top:30px}.error{background:#b4232f16;border:1px solid #be4955;color:var(--ink);padding:13px;border-radius:10px;margin:16px 0}.status-head{display:flex;justify-content:space-between;gap:20px}#status{border-top:1px solid var(--line);padding-top:22px;margin-top:22px}#status p{font-size:13px}progress{width:100%;height:10px;margin-top:12px;accent-color:#6096ba}#results{margin-top:24px}.result-head{align-items:flex-start}.result-head p{margin:4px 0 10px}.result-head .eyebrow{font-size:10px;margin-bottom:12px}.result-head .primary{flex-shrink:0}.keep-note{background:var(--surface-2);padding:18px;border-radius:12px;margin:20px 0;font-size:13px}.keep-note p{margin:6px 0 0;color:var(--muted)}.keep-note strong{color:var(--ink)}.notice{border-left:3px solid #6096ba;padding:10px 14px;background:var(--surface-2);font-size:14px}.toolbar h3{margin:0}#tracks{list-style:none;margin:18px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 24px}#tracks li{display:grid;grid-template-columns:23px 52px 1fr;gap:12px;align-items:center;border-bottom:1px solid var(--line);padding:14px 0;min-width:0}#tracks .number{font-size:11px;color:var(--muted)}#tracks img{width:52px;height:52px;object-fit:cover;border-radius:6px}#tracks a{font-size:14px;font-weight:750;text-decoration:none;color:var(--ink);overflow-wrap:anywhere}#tracks a:hover{text-decoration:underline}#tracks .artist{font-size:13px;color:var(--muted)}#tracks .reason{font-size:11px;color:var(--muted);margin-top:4px}#tracks li>div{min-width:0}#copy-status{font-size:12px;color:var(--muted);margin:5px 0}textarea{width:100%;height:160px;background:var(--surface-2);color:var(--ink);border:1px solid var(--line);border-radius:8px}.mh__nav a{font-size:14px!important;padding:10px 11px!important}
@media(max-width:900px){.hero{grid-template-columns:1fr 160px;gap:24px}.record{width:160px;height:160px}.record-label{width:85px;height:85px}.form-grid{grid-template-columns:1.4fr 1fr 1fr}}
@media(max-width:760px){main{padding:25px 16px}.hero{grid-template-columns:1fr;padding:8px 0 28px}.record{display:none}h1{font-size:45px}.intro{font-size:18px}.card{padding:20px}.section-heading,.result-head{align-items:flex-start;flex-direction:column;gap:9px}.form-grid{grid-template-columns:1fr 1fr;gap:16px}.form-grid>div:first-child{grid-column:1/-1}.form-bottom{flex-direction:column;align-items:stretch;gap:15px}.how{grid-template-columns:1fr;gap:10px;margin-top:24px}.how article{border-bottom:1px solid var(--line);padding:12px 0 20px}.result-head .primary{width:100%}#tracks{grid-template-columns:1fr}.tag{font-size:11px}.keep-note{padding:15px}.mh__nav a{font-size:15px!important}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

/* Keep the action readable independently of helper-copy length. */
#generate{flex-shrink:0;white-space:nowrap;gap:16px}.form-bottom>p{min-width:0}.playlist-policy{margin:18px 0 0;padding-top:16px;border-top:1px solid var(--line);font-size:12px;line-height:1.6;color:var(--muted)}
@media(max-width:760px){#generate{width:100%;min-height:50px}}

main p,main footer{text-wrap:pretty}

.form-grid{grid-template-columns:2fr 1fr 1fr 1.2fr}@media(max-width:800px){.form-grid{grid-template-columns:1fr 1fr}}@media(max-width:520px){.form-grid{grid-template-columns:1fr}}

.decade-filter{border:0;border-top:1px solid #8885;padding:20px 0 0;margin:22px 0 0}.decade-filter legend{font-weight:700;padding-right:10px}.decade-filter>select{max-width:300px}.decade-filter>label{display:block}.decade-filter #decade-choices:not([hidden]){display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:16px}.decade-filter .decade-choice{display:inline-flex;align-items:center;gap:6px;margin:0;cursor:pointer}.decade-filter input[type=checkbox]{width:18px;height:18px;padding:0;margin:0;accent-color:#518b78}.decade-filter .muted{font-size:.85rem;margin-bottom:0}

.decade-filter #decade-choices>div{flex:1;min-width:120px;max-width:200px}.decade-filter #decade-choices select{width:100%}

.decade-actions{display:flex;gap:10px;margin-top:16px}#decade-status{font-size:.9rem;margin:12px 0 0;font-weight:600}

.decade-filter #decade-choices:not([hidden]){display:block}.decade-filter #decade-choices>div{max-width:none}.decade-range-fields{display:flex;flex-wrap:wrap;gap:16px;margin:12px 0 20px}.decade-range-fields>div{flex:1;min-width:120px;max-width:200px}.decade-individuals{display:flex;flex-wrap:wrap;gap:12px 18px}.decade-individual-label{font-weight:600}.decade-individual-label span{font-weight:400}.decade-range-fields select:disabled{opacity:.5}

.decade-filter .decade-choice[hidden]{display:none}

/* Compact builder and native keyboard-accessible optional controls. */
main{padding-top:24px}.hero{padding:6px 0 26px}h1{font-size:clamp(40px,5vw,60px);margin-bottom:16px}.hero .eyebrow{margin-bottom:10px}.intro{font-size:19px}.record{width:180px;height:180px}.section-heading{margin-bottom:18px}
input::placeholder{color:#566b7b;opacity:1}html[data-theme=dark] input::placeholder{color:#b4c5d3;opacity:1}
summary{cursor:pointer;font-weight:650;overflow-wrap:anywhere}summary:focus-visible,textarea:focus-visible{outline:3px solid #6096ba;outline-offset:3px}.decade-panel{margin-top:18px;border-top:1px solid var(--line);padding-top:12px}.decade-panel>summary{font-size:13px;min-height:32px}.decade-panel>summary span{font-weight:400;color:var(--muted);margin-left:12px}.decade-filter{margin:10px 0 0;padding:10px 0 0;border:0}.decade-filter legend{font-size:13px}.decade-individuals{gap:8px}.decade-filter .decade-individuals .decade-choice{padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--surface-2);min-height:42px}.decade-choice:has(input:checked){outline:2px solid var(--accent);outline-offset:-2px}.decade-filter input[type=checkbox]{accent-color:var(--accent)}.decade-range-fields{margin-bottom:12px}.decade-individual-label{font-size:13px}.playlist-policy{margin:14px 0 0;padding:12px 14px;border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:8px;background:var(--surface-2);font-size:12px}.playlist-policy p{margin:0 0 8px}.playlist-policy p:last-child{margin-bottom:0}.playlist-policy strong{color:var(--ink)}.playlist-policy summary{font-size:12px}.playlist-policy details[open] summary{margin-bottom:8px}
@media(max-width:760px){main{padding-top:18px}.hero{padding-bottom:22px}h1{font-size:42px}.intro{font-size:18px}.form-bottom{margin-top:14px}.decade-panel>summary span{display:block;margin:3px 0 0 16px}.record{display:none}.status-head{gap:10px}.toolbar{flex-wrap:wrap}}
@media(max-width:520px){.form-grid{grid-template-columns:1fr 1fr;gap:14px 10px}.form-grid>div:first-child,.form-grid>div:last-child{grid-column:1/-1}.form-grid label{font-size:12px}.card{padding:18px}h1{font-size:40px}.hero .muted{font-size:14px}}