:root{--bg:#f7f5ff;--surface:#fff;--surface-2:#f0edff;--ink:#1d1830;--muted:#655f78;--line:#ddd8ee;--brand:#6d38d8;--brand-2:#ec4f95;--ok:#087a57;--warn:#9a5a00;--danger:#b42332;--shadow:0 18px 55px rgba(41,27,79,.12);--radius:20px;color-scheme:light}
[data-theme="dark"]{--bg:#151221;--surface:#201b31;--surface-2:#2b2441;--ink:#f8f5ff;--muted:#bdb5d0;--line:#423a57;--brand:#a986ff;--brand-2:#ff7eb7;--ok:#6ee7b7;--warn:#fbbf24;--danger:#ff8793;--shadow:0 20px 60px rgba(0,0,0,.35);color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 14% 0,rgba(124,58,237,.12),transparent 28rem),var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.55}button,input,select,textarea{font:inherit;color:inherit}button,.button{border:0;border-radius:12px;padding:.72rem 1rem;background:var(--brand);color:#fff;font-weight:750;cursor:pointer;transition:.18s transform,.18s opacity,.18s background;display:inline-flex;align-items:center;justify-content:center;gap:.45rem;text-decoration:none}button:hover,.button:hover{transform:translateY(-1px)}button:focus-visible,.button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid color-mix(in srgb,var(--brand) 45%,transparent);outline-offset:2px}.secondary{background:var(--surface-2);color:var(--ink);border:1px solid var(--line)}.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}.danger{background:color-mix(in srgb,var(--danger) 13%,var(--surface));color:var(--danger);border:1px solid color-mix(in srgb,var(--danger) 35%,var(--line))}.small{padding:.45rem .7rem;font-size:.88rem}.site-header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav-wrap{max-width:1500px;margin:auto;padding:.75rem 1.2rem;display:flex;align-items:center;gap:1rem}.brand{display:flex;align-items:center;gap:.65rem;font-weight:900;font-size:1.2rem;text-decoration:none;color:var(--ink);white-space:nowrap}.brand-mark{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:grid;place-items:center;color:#fff;box-shadow:0 8px 20px rgba(109,56,216,.3)}.main-nav{display:flex;gap:.25rem;flex:1}.main-nav a{color:var(--muted);text-decoration:none;padding:.55rem .75rem;border-radius:10px;font-weight:650}.main-nav a:hover{background:var(--surface-2);color:var(--ink)}.nav-actions{display:flex;gap:.45rem;align-items:center}.icon-button{width:40px;height:40px;padding:0;background:var(--surface-2);color:var(--ink);border:1px solid var(--line)}.hero{max-width:1300px;margin:0 auto;padding:5rem 1.25rem 3rem;display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:.45rem;padding:.35rem .68rem;border-radius:999px;background:var(--surface-2);color:var(--brand);font-weight:800;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em}.hero h1{font-size:clamp(2.5rem,6vw,5.6rem);line-height:.96;letter-spacing:-.055em;margin:1rem 0}.gradient-text{background:linear-gradient(120deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}.hero p{font-size:1.13rem;color:var(--muted);max-width:65ch}.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}.privacy-note{margin-top:1rem;display:flex;gap:.55rem;color:var(--muted);font-size:.9rem}.hero-visual{background:var(--surface);border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow);padding:1.3rem;transform:rotate(1deg)}.mini-score{background:#fff;border-radius:18px;padding:1rem;overflow:hidden;color:#1a1730}.mini-staff{height:92px;position:relative;background:repeating-linear-gradient(to bottom,transparent 0,transparent 11px,#b8b4c5 12px,#b8b4c5 13px);background-size:100% 13px}.mini-note{position:absolute;width:16px;height:11px;border-radius:50%;background:#211a37;transform:rotate(-18deg)}.mini-note:after{content:"";position:absolute;width:2px;height:40px;background:#211a37;right:0;bottom:4px}.feature-grid,.tool-grid,.guide-grid{max-width:1300px;margin:auto;padding:1.5rem 1.25rem 4rem;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.section-heading{max-width:1300px;margin:auto;padding:4rem 1.25rem 1rem}.section-heading h2{font-size:clamp(2rem,4vw,3.5rem);margin:.3rem 0;letter-spacing:-.04em}.section-heading p{color:var(--muted);max-width:70ch}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.35rem;box-shadow:0 8px 24px rgba(41,27,79,.05)}.card h3{margin:.2rem 0 .45rem}.card p{color:var(--muted)}.card-icon{width:44px;height:44px;border-radius:14px;background:var(--surface-2);color:var(--brand);display:grid;place-items:center;font-size:1.35rem}.tool-card{display:flex;flex-direction:column;text-decoration:none;color:var(--ink);min-height:210px}.tool-card .arrow{margin-top:auto;color:var(--brand);font-weight:800}.ad-slot{max-width:970px;height:120px;margin:2rem auto;border:1px dashed var(--line);border-radius:18px;display:grid;place-items:center;color:var(--muted);font-size:.78rem;background:color-mix(in srgb,var(--surface) 70%,transparent)}.page-shell{max-width:1500px;margin:auto;padding:1.2rem}.breadcrumbs{font-size:.88rem;color:var(--muted);margin:.5rem 0 1.2rem}.breadcrumbs a{color:var(--brand)}.tool-intro{display:grid;grid-template-columns:1fr auto;gap:2rem;align-items:end;margin:1.4rem 0 1.8rem}.tool-intro h1{font-size:clamp(2.1rem,4vw,4rem);margin:.2rem 0;letter-spacing:-.045em}.tool-intro p{max-width:72ch;color:var(--muted)}.privacy-pill{background:color-mix(in srgb,var(--ok) 12%,var(--surface));border:1px solid color-mix(in srgb,var(--ok) 28%,var(--line));color:var(--ok);padding:.7rem 1rem;border-radius:999px;font-weight:800;white-space:nowrap}.app{background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}.app-topbar{display:flex;gap:.55rem;padding:.75rem;border-bottom:1px solid var(--line);align-items:center;flex-wrap:wrap}.app-topbar .spacer{flex:1}.drop-zone{border:1px dashed var(--line);background:var(--surface-2);border-radius:12px;padding:.65rem 1rem;cursor:pointer;font-weight:700}.drop-zone.drag{border-color:var(--brand);background:color-mix(in srgb,var(--brand) 10%,var(--surface))}.drop-zone input{display:none}.app-status{padding:.55rem .85rem;border-radius:10px;background:var(--surface-2);font-size:.85rem;color:var(--muted);max-width:370px}.app-status[data-kind="error"]{color:var(--danger);background:color-mix(in srgb,var(--danger) 11%,var(--surface))}.app-status[data-kind="warn"]{color:var(--warn)}.app-tabs{display:flex;gap:.2rem;padding:.55rem .75rem;border-bottom:1px solid var(--line);overflow:auto;background:color-mix(in srgb,var(--surface-2) 45%,var(--surface))}.app-tabs button{white-space:nowrap;background:transparent;color:var(--muted);padding:.55rem .8rem}.app-tabs button.active{background:var(--brand);color:#fff}.app-body{min-height:680px}.editor-layout{display:grid;grid-template-columns:270px minmax(0,1fr) 300px;min-height:680px}.sidebar{border-right:1px solid var(--line);padding:1rem;background:color-mix(in srgb,var(--surface-2) 38%,var(--surface));overflow:auto}.sidebar.right{border-right:0;border-left:1px solid var(--line)}.sidebar h3{font-size:.92rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin:1.2rem 0 .55rem}.sidebar h3:first-child{margin-top:0}.field{display:grid;gap:.3rem;margin-bottom:.7rem}.field label{font-weight:700;font-size:.84rem}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:.62rem .7rem}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:.55rem}.tool-row{display:flex;gap:.4rem;flex-wrap:wrap}.duration-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.35rem}.duration-grid button{background:var(--surface);border:1px solid var(--line);color:var(--ink);padding:.55rem .35rem}.duration-grid button.active{background:var(--brand);color:#fff}.score-workspace{min-width:0;background:#e9e6f1;padding:1rem;overflow:auto;position:relative}.score-paper{background:#fff;min-width:900px;min-height:610px;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.15);overflow:hidden}.score-paper svg{display:block;width:100%;height:auto}.part-list{display:grid;gap:.4rem}.part-chip{background:var(--surface);border:1px solid var(--line);color:var(--ink);display:flex;justify-content:space-between;text-align:left;padding:.65rem}.part-chip small{color:var(--muted)}.part-chip.active{border-color:var(--brand);box-shadow:0 0 0 2px color-mix(in srgb,var(--brand) 15%,transparent)}.validation-list{list-style:none;padding:0;margin:0;display:grid;gap:.4rem}.validation-list li{display:grid;gap:.15rem;padding:.6rem;border-radius:10px;background:var(--surface-2);font-size:.82rem}.validation-list li[data-level="error"]{border-left:4px solid var(--danger)}.validation-list li[data-level="info"]{border-left:4px solid var(--warn)}.validation-list li[data-level="ok"]{border-left:4px solid var(--ok)}.export-grid{display:grid;grid-template-columns:1fr 1fr;gap:.4rem}.export-grid button{font-size:.82rem;padding:.55rem;background:var(--surface);color:var(--ink);border:1px solid var(--line)}.module-panel{padding:1.3rem}.module-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.module-card{background:var(--surface-2);border:1px solid var(--line);border-radius:18px;padding:1.2rem}.module-card h2,.module-card h3{margin-top:0}.playback-bar{display:flex;gap:.6rem;align-items:center;flex-wrap:wrap;padding:1rem;background:var(--surface-2);border-radius:16px}.pulse{width:120px;height:120px;border-radius:50%;margin:1rem auto;background:radial-gradient(circle,#fff 15%,var(--brand) 16%,var(--brand) 38%,color-mix(in srgb,var(--brand) 18%,var(--surface)) 39%);box-shadow:0 0 0 0 color-mix(in srgb,var(--brand) 20%,transparent);transition:.08s transform,.08s box-shadow}.pulse.on{transform:scale(1.09);box-shadow:0 0 0 18px color-mix(in srgb,var(--brand) 0%,transparent)}.tuner{display:grid;place-items:center;padding:1rem}.tuner-note{font-size:5rem;font-weight:900;line-height:1}.tuner-meter{width:280px;height:145px;border-radius:280px 280px 0 0;background:conic-gradient(from 270deg at 50% 100%,var(--danger),var(--warn),var(--ok),var(--warn),var(--danger));position:relative;overflow:hidden;margin-top:1rem}.tuner-meter:after{content:"";position:absolute;inset:30px 30px 0;background:var(--surface-2);border-radius:240px 240px 0 0}.tuner-needle{position:absolute;z-index:2;bottom:0;left:50%;width:3px;height:125px;background:var(--ink);transform-origin:50% 100%;transition:.12s transform}.tuner-center{position:absolute;z-index:3;bottom:-8px;left:50%;transform:translateX(-50%);width:28px;height:28px;border-radius:50%;background:var(--ink)}.circle-fifths{width:min(440px,100%);aspect-ratio:1;margin:auto;border-radius:50%;position:relative;background:conic-gradient(from -15deg,#7c3aed,#ec4899,#f97316,#eab308,#22c55e,#06b6d4,#3b82f6,#7c3aed);display:grid;place-items:center}.circle-fifths:after{content:"C · G · D · A · E · H/B · F♯ · D♭ · A♭ · E♭ · B♭ · F";width:66%;height:66%;border-radius:50%;background:var(--surface);display:grid;place-items:center;text-align:center;padding:2rem;font-weight:900;line-height:2}.theory-result{font-size:1.35rem;font-weight:850;padding:1rem;background:var(--surface);border-radius:12px;border:1px solid var(--line);min-height:64px}.import-report{margin:1rem;padding:1rem;background:#10131c;color:#dbeafe;border-radius:14px;max-height:300px;overflow:auto}.import-report pre{white-space:pre-wrap}.project-list{display:grid;gap:.55rem}.project-list article{display:flex;justify-content:space-between;align-items:center;gap:1rem;border:1px solid var(--line);background:var(--surface);padding:.8rem;border-radius:12px}.project-list small{display:block;color:var(--muted)}.content-section{max-width:1000px;margin:4rem auto;padding:0 1.25rem}.content-section h2{font-size:2rem;letter-spacing:-.03em}.content-section p,.content-section li{color:var(--muted)}.faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1rem;margin:.65rem 0}.faq summary{font-weight:800;cursor:pointer}.guide-layout{max-width:1100px;margin:auto;padding:2rem 1.25rem;display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:2rem}.article{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:clamp(1.2rem,4vw,3rem);box-shadow:var(--shadow)}.article h1{font-size:clamp(2.2rem,5vw,4.5rem);line-height:1;letter-spacing:-.05em}.article h2{margin-top:2.3rem}.article p,.article li{color:var(--muted);font-size:1.04rem}.toc{position:sticky;top:90px;align-self:start}.toc a{display:block;padding:.45rem;color:var(--muted);text-decoration:none}.site-footer{margin-top:5rem;border-top:1px solid var(--line);background:var(--surface)}.footer-grid{max-width:1300px;margin:auto;padding:3rem 1.25rem;display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:2rem}.footer-grid h3{margin-top:0}.footer-grid a{display:block;color:var(--muted);text-decoration:none;margin:.35rem 0}.footer-bottom{border-top:1px solid var(--line);padding:1rem;text-align:center;color:var(--muted);font-size:.85rem}.local-banner{background:linear-gradient(90deg,color-mix(in srgb,var(--ok) 18%,var(--surface)),var(--surface));border:1px solid color-mix(in srgb,var(--ok) 30%,var(--line));border-radius:18px;padding:1rem 1.2rem;display:flex;gap:.8rem;align-items:center}.legal-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}.notice{padding:1rem;border-radius:14px;background:var(--surface-2);border-left:4px solid var(--brand)}
@media(max-width:1100px){.editor-layout{grid-template-columns:230px minmax(0,1fr)}.sidebar.right{grid-column:1/-1;border-left:0;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.hero{grid-template-columns:1fr}.feature-grid,.tool-grid,.guide-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.module-grid{grid-template-columns:1fr}}
@media(max-width:760px){.main-nav{display:none}.nav-wrap{padding:.65rem}.hero{padding-top:3rem}.hero h1{font-size:3rem}.feature-grid,.tool-grid,.guide-grid{grid-template-columns:1fr}.tool-intro{grid-template-columns:1fr}.privacy-pill{justify-self:start}.page-shell{padding:.65rem}.app{border-radius:16px}.app-topbar{align-items:stretch}.app-topbar>*{flex:1}.app-status{flex-basis:100%;max-width:none}.editor-layout{display:block}.sidebar{border-right:0;border-bottom:1px solid var(--line);max-height:none}.sidebar.right{display:block}.score-workspace{padding:.5rem;min-height:500px}.score-paper{min-width:820px}.module-panel{padding:.75rem}.field-row,.legal-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.guide-layout{grid-template-columns:1fr}.toc{position:static;order:-1}.nav-actions .button{display:none}.project-list article{align-items:flex-start;flex-direction:column}.export-grid{grid-template-columns:repeat(3,1fr)}}
@media print{.site-header,.app-topbar,.app-tabs,.sidebar,.site-footer,.ad-slot,.tool-intro,.breadcrumbs{display:none!important}.page-shell,.app,.app-body,.editor-layout,.score-workspace{padding:0;margin:0;border:0;box-shadow:none;background:#fff}.score-paper{min-width:0;box-shadow:none}.score-paper svg{width:100%}}