:root{--bg:#f3f1fb;--bg-gradient:linear-gradient(160deg, #f6f2fc 0%, #eef0fb 50%, #f3eefa 100%);--card:#ffffffbf;--card-solid:#fff;--card-border:#ffffffe6;--text:#3a3552;--text-sub:#8b86a3;--primary:#8b7cf6;--primary-deep:#7c6bf0;--primary-soft:#ede9fe;--primary-gradient:linear-gradient(135deg, #a594f9 0%, #7c6bf0 100%);--pink:#f2a9d4;--pink-soft:#fce7f3;--blue:#93b8f4;--blue-soft:#e0ecfd;--green:#7dd4b0;--green-soft:#d7f5e8;--yellow-soft:#fdf3d8;--danger:#f08aa6;--success:#7dd4b0;--chord-1:#8b7cf6;--chord-1-soft:#ede9fe;--chord-1-text:#6a5ae0;--chord-2:#f2a9d4;--chord-2-soft:#fce7f3;--chord-2-text:#d8569f;--chord-3:#93b8f4;--chord-3-soft:#e0ecfd;--chord-3-text:#4a7fd6;--chord-4:#7dd4b0;--chord-4-soft:#d7f5e8;--chord-4-text:#2fa278;--radius-card:20px;--radius-btn:14px;--radius-chip:999px;--shadow-card:0 8px 24px #8b7cf61a;--shadow-btn:0 6px 16px #8b7cf659;--hairline:#efecf9;--content-max-width:480px;--nav-height:64px;--space-screen:16px;--sans:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:var(--sans);color:var(--text);background:var(--bg);background-image:var(--bg-gradient);-webkit-font-smoothing:antialiased;background-attachment:fixed;min-height:100dvh;line-height:1.6}body:before,body:after{content:"";pointer-events:none;z-index:-1;border-radius:50%;position:fixed}body:before{background:radial-gradient(circle,#a594f947,#0000 70%);width:360px;height:360px;top:-100px;right:-100px}body:after{background:radial-gradient(circle,#f2a9d438,#0000 70%);width:320px;height:320px;bottom:-80px;left:-100px}button{cursor:pointer;color:inherit;-webkit-tap-highlight-color:transparent;background:0 0;border:none;font-family:inherit}#root{min-height:100dvh}.app{max-width:var(--content-max-width);min-height:100dvh;padding:0 var(--space-screen);padding-bottom:calc(var(--nav-height) + env(safe-area-inset-bottom) + 20px);margin:0 auto}.screen{animation:.25s screen-in}@keyframes screen-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.screen-header{text-align:center;padding:22px 0 16px}.screen-header h1{letter-spacing:.02em;font-size:1.2rem;font-weight:700}.screen-header .subtitle{color:var(--text-sub);margin-top:4px;font-size:.78rem}.section-title{color:var(--text-sub);margin:20px 2px 10px;font-size:.85rem;font-weight:600}.card{background:var(--card);-webkit-backdrop-filter:blur(12px);border:1px solid var(--card-border);border-radius:var(--radius-card);box-shadow:var(--shadow-card);margin-bottom:14px;padding:18px}.card-label{color:var(--text-sub);letter-spacing:.05em;margin-bottom:12px;font-size:.75rem;font-weight:600}.empty-note{color:var(--text-sub);text-align:center;padding:8px 0;font-size:.85rem}.progression-row{flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;display:flex}.chord-chip{border-radius:12px;padding:6px 12px;font-size:1.1rem;font-weight:700;line-height:1.3;transition:box-shadow .2s,transform .2s}.progression-large .chord-chip{padding:8px 14px;font-size:1.35rem}.chord-chip[data-color="1"]{background:var(--chord-1-soft);color:var(--chord-1-text)}.chord-chip[data-color="2"]{background:var(--chord-2-soft);color:var(--chord-2-text)}.chord-chip[data-color="3"]{background:var(--chord-3-soft);color:var(--chord-3-text)}.chord-chip[data-color="4"]{background:var(--chord-4-soft);color:var(--chord-4-text)}.chord-chip.playing{box-shadow:0 0 0 2px var(--primary), 0 4px 14px #8b7cf666;transform:scale(1.08)}.progression-arrow{color:var(--text-sub);font-size:.95rem;font-weight:600}.progression-degrees{text-align:center;color:var(--text-sub);letter-spacing:.04em;margin-top:8px;font-size:.75rem}.badge{background:var(--primary-soft);color:var(--primary-deep);border-radius:var(--radius-chip);align-items:center;gap:4px;padding:4px 14px;font-size:.8rem;font-weight:600;display:inline-flex}.badge-strong{background:var(--primary-gradient);color:#fff}.chip{border-radius:var(--radius-chip);background:var(--card-solid);color:var(--text-sub);border:1px solid #e6e2f5;align-items:center;gap:5px;padding:8px 14px;font-size:.85rem;font-weight:500;transition:background .15s,color .15s,border-color .15s,transform .15s;display:inline-flex}.chip:active{transform:scale(.96)}.chip.selected{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 4px 10px #8b7cf64d}.chip-icon{font-size:.8rem}.chip-row{flex-wrap:wrap;gap:8px;display:flex}.segment{border-radius:var(--radius-chip);background:#edeafa;padding:3px;display:flex}.segment-btn{border-radius:var(--radius-chip);color:var(--text-sub);flex:1;padding:7px 12px;font-size:.8rem;transition:background .15s,color .15s}.segment-btn.selected{color:var(--primary-deep);background:#fff;font-weight:600;box-shadow:0 1px 4px #3a35521a}.cta-btn{background:var(--primary-gradient);color:#fff;border-radius:var(--radius-btn);width:100%;height:52px;box-shadow:var(--shadow-btn);justify-content:center;align-items:center;gap:8px;font-size:1rem;font-weight:700;transition:transform .15s,filter .15s;display:flex}.cta-btn:hover{filter:brightness(1.05)}.cta-btn:active{transform:translateY(2px)scale(.99)}.outline-btn{background:var(--card-solid);border:1.5px solid var(--primary);width:100%;height:48px;color:var(--primary-deep);border-radius:var(--radius-btn);justify-content:center;align-items:center;gap:8px;font-size:.95rem;font-weight:600;transition:background .15s,transform .15s;display:flex}.outline-btn:hover{background:var(--primary-soft)}.outline-btn:active{transform:scale(.98)}.create-actions{flex-direction:column;gap:10px;margin-top:20px;display:flex}.recommend-card{text-align:center;width:100%;padding:22px 18px;font-size:1rem;transition:transform .15s,box-shadow .15s;display:block}.recommend-card:active{transform:scale(.99)}.recommend-hint{color:var(--primary);margin-top:12px;font-size:.7rem;font-weight:600}.recommend-meta{margin-top:14px}.recommend-desc{color:var(--text-sub);margin-top:8px;font-size:.82rem}.recent-section .recent-card{padding:6px 18px}.recent-row{border-bottom:1px solid var(--hairline);justify-content:space-between;align-items:center;padding:12px 0;display:flex}.recent-row:last-child{border-bottom:none}.recent-chords{font-size:.92rem;font-weight:600}.recent-heart{color:var(--danger);display:flex}.recent-heart svg{width:18px;height:18px}.key-grid{grid-template-columns:repeat(6,1fr);gap:8px;display:grid}.key-chip{aspect-ratio:1;background:var(--card-solid);color:var(--text-sub);border:1px solid #e6e2f5;border-radius:50%;justify-content:center;align-items:center;font-size:.85rem;font-weight:600;transition:background .15s,color .15s,transform .15s;display:flex}.key-chip:active{transform:scale(.92)}.key-chip.selected{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 4px 10px #8b7cf64d}.mode-segment{margin-top:14px}.result-header{position:relative}.back-btn{background:var(--card-solid);width:40px;height:40px;color:var(--text-sub);border:1px solid #e6e2f5;border-radius:50%;justify-content:center;align-items:center;font-size:1.1rem;display:flex;position:absolute;top:50%;left:0;transform:translateY(-50%)}.condition-chips{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:14px;display:flex}.condition-chip{background:var(--primary-soft);color:var(--primary-deep);border-radius:var(--radius-chip);padding:4px 12px;font-size:.75rem;font-weight:600}.result-main-card{text-align:center;padding:24px 18px}.result-name{margin-top:14px}.result-desc{color:var(--text-sub);margin-top:10px;font-size:.85rem}.info-pills{gap:10px;margin-bottom:14px;display:flex}.info-pill{background:var(--card);-webkit-backdrop-filter:blur(12px);border:1px solid var(--card-border);border-radius:var(--radius-btn);box-shadow:var(--shadow-card);text-align:center;flex:1;padding:12px}.pill-label{color:var(--text-sub);font-size:.7rem}.pill-value{color:var(--primary-deep);margin-top:2px;font-size:1.05rem;font-weight:700}.genre-card{padding-bottom:14px}.genre-tags{flex-wrap:wrap;gap:8px;display:flex}.tag-genre{background:var(--primary-soft);color:var(--primary-deep);padding:4px 12px;font-size:.78rem;font-weight:600}.role-row{border-bottom:1px solid var(--hairline);align-items:center;gap:14px;padding:10px 0;display:flex}.role-row:last-child{border-bottom:none;padding-bottom:2px}.role-chord{border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;min-width:52px;height:42px;padding:0 8px;font-size:.95rem;font-weight:700;display:flex}.role-chord[data-color="1"]{background:var(--chord-1-soft);color:var(--chord-1-text)}.role-chord[data-color="2"]{background:var(--chord-2-soft);color:var(--chord-2-text)}.role-chord[data-color="3"]{background:var(--chord-3-soft);color:var(--chord-3-text)}.role-chord[data-color="4"]{background:var(--chord-4-soft);color:var(--chord-4-text)}.role-text{flex:1;min-width:0}.role-label{font-size:.85rem;font-weight:600}.role-desc{color:var(--text-sub);font-size:.75rem}.chord-select-row{gap:8px;margin-bottom:12px;display:flex}.chord-select-btn{background:var(--card-solid);height:38px;color:var(--text-sub);border:1px solid #e6e2f5;border-radius:10px;flex:1;font-size:.85rem;font-weight:700;transition:background .15s,color .15s,border-color .15s,transform .15s}.chord-select-btn:active{transform:scale(.95)}.chord-select-btn.selected[data-color="1"]{background:var(--chord-1-soft);border-color:var(--chord-1);color:var(--chord-1-text)}.chord-select-btn.selected[data-color="2"]{background:var(--chord-2-soft);border-color:var(--chord-2);color:var(--chord-2-text)}.chord-select-btn.selected[data-color="3"]{background:var(--chord-3-soft);border-color:var(--chord-3);color:var(--chord-3-text)}.chord-select-btn.selected[data-color="4"]{background:var(--chord-4-soft);border-color:var(--chord-4);color:var(--chord-4-text)}.chord-notes-text{text-align:center;color:var(--text-sub);margin-top:10px;font-size:.8rem;font-weight:600}.piano{background:var(--card-solid);border:1px solid #e6e2f5;border-radius:12px;height:120px;position:relative;overflow:hidden}.piano-white-row{height:100%;display:flex}.piano-key-white{background:#fff;border-right:1px solid #eceaf6;flex:1}.piano-key-white:last-child{border-right:none}.piano-key-white[data-color="1"]{background:var(--chord-1-soft);box-shadow:inset 0 -6px 0 var(--chord-1)}.piano-key-white[data-color="2"]{background:var(--chord-2-soft);box-shadow:inset 0 -6px 0 var(--chord-2)}.piano-key-white[data-color="3"]{background:var(--chord-3-soft);box-shadow:inset 0 -6px 0 var(--chord-3)}.piano-key-white[data-color="4"]{background:var(--chord-4-soft);box-shadow:inset 0 -6px 0 var(--chord-4)}.piano-key-black{z-index:2;background:#3a3552;border-radius:0 0 4px 4px;width:4.42857%;height:60%;position:absolute;top:0}.piano-key-black[data-color="1"]{background:var(--chord-1)}.piano-key-black[data-color="2"]{background:var(--chord-2)}.piano-key-black[data-color="3"]{background:var(--chord-3)}.piano-key-black[data-color="4"]{background:var(--chord-4)}.playback-card{padding-bottom:12px}.progress-track{border-radius:var(--radius-chip);background:#e9e5f7;height:6px;margin-bottom:14px;overflow:hidden}.progress-fill{background:var(--primary-gradient);border-radius:var(--radius-chip);height:100%;transition:width .1s linear}.playback-row{align-items:center;gap:12px;padding:7px 0;display:flex}.playback-row-label{width:92px;color:var(--text-sub);flex-shrink:0;font-size:.8rem;font-weight:600}.playback-row input[type=range]{accent-color:var(--primary);flex:1;min-width:0}.playback-bpm{text-align:right;width:36px;color:var(--primary-deep);flex-shrink:0;font-size:.92rem;font-weight:700}.beats-segment{flex:1}.toggle{border-radius:var(--radius-chip);background:#e3def5;width:48px;height:28px;transition:background .2s;position:relative}.toggle.on{background:var(--primary)}.toggle-knob{background:#fff;border-radius:50%;width:22px;height:22px;transition:left .2s;position:absolute;top:3px;left:3px;box-shadow:0 1px 4px #3a355233}.toggle.on .toggle-knob{left:23px}.action-row{gap:10px;margin-top:4px;display:flex}.action-btn{border-radius:var(--radius-btn);flex:1;justify-content:center;align-items:center;gap:6px;height:48px;font-size:.9rem;font-weight:600;transition:transform .15s,filter .15s,background .15s;display:flex}.action-btn:active{transform:scale(.97)}.action-btn svg{width:18px;height:18px}.action-play{background:var(--primary-gradient);color:#fff;box-shadow:var(--shadow-btn)}.action-copy{background:var(--card-solid);border:1.5px solid var(--primary);color:var(--primary-deep)}.action-save{background:var(--card-solid);border:1.5px solid var(--pink);color:#d8569f}.action-save.saved{background:var(--pink-soft)}.action-play.playing{animation:1.2s ease-in-out infinite play-pulse}@keyframes play-pulse{0%,to{box-shadow:var(--shadow-btn)}50%{box-shadow:0 0 0 7px #8b7cf638}}.regen-btn{margin-top:10px}.regen-btn svg{width:17px;height:17px}.toast{left:50%;bottom:calc(var(--nav-height) + env(safe-area-inset-bottom) + 18px);background:var(--text);color:#fff;border-radius:var(--radius-chip);z-index:20;white-space:nowrap;padding:10px 22px;font-size:.85rem;font-weight:600;animation:.25s toast-in;position:fixed;transform:translate(-50%);box-shadow:0 8px 20px #3a35524d}@keyframes toast-in{0%{opacity:0;transform:translate(-50%)translateY(8px)}to{opacity:1;transform:translate(-50%)translateY(0)}}.filter-row{scrollbar-width:none;gap:8px;margin-bottom:6px;padding-bottom:10px;display:flex;overflow-x:auto}.filter-row::-webkit-scrollbar{display:none}.filter-row .chip{flex-shrink:0}.fav-list{flex-direction:column;display:flex}.fav-card{align-items:center;gap:12px;padding:14px 16px;display:flex}.fav-play{background:var(--primary-soft);width:42px;height:42px;color:var(--primary-deep);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;transition:background .15s,transform .15s;display:flex}.fav-play:active{transform:scale(.92)}.fav-play.playing{background:var(--primary);color:#fff;animation:1.2s ease-in-out infinite play-pulse}.fav-play svg{width:18px;height:18px}.fav-main{flex:1;min-width:0}.fav-chords{font-size:.95rem;font-weight:700}.fav-tags{flex-wrap:wrap;gap:6px;margin-top:5px;display:flex}.tag{color:var(--text-sub);border-radius:var(--radius-chip);background:#f1eefb;padding:2px 9px;font-size:.65rem;font-weight:500}.fav-name{color:var(--text-sub);margin-bottom:2px;font-size:.72rem;font-weight:600}.fav-actions{flex-direction:column;flex-shrink:0;align-items:center;gap:4px;display:flex}.fav-copy{color:var(--text-sub);flex-shrink:0;padding:4px;transition:color .15s;display:flex}.fav-copy:active{color:var(--primary-deep)}.fav-copy svg{width:18px;height:18px}.fav-heart{color:var(--danger);flex-shrink:0;padding:4px;display:flex}.fav-heart svg{width:20px;height:20px}.fav-empty{text-align:center;padding:32px 20px}.fav-empty-title{margin-bottom:8px;font-size:.9rem;font-weight:600}.fav-empty-desc{color:var(--text-sub);font-size:.82rem;line-height:1.6}.about-rows{flex-direction:column;display:flex}.about-row{border-bottom:1px solid var(--hairline);justify-content:space-between;align-items:center;gap:12px;padding:10px 0;font-size:.85rem;display:flex}.about-row:last-child{border-bottom:none}.about-row span:first-child{color:var(--text-sub);flex-shrink:0}.clear-btn{border-radius:var(--radius-btn);border:1.5px solid var(--danger);width:100%;height:42px;color:var(--danger);background:#fff0f3;justify-content:center;align-items:center;margin-top:12px;font-size:.85rem;font-weight:600;transition:background .15s,transform .15s;display:flex}.clear-btn:active{transform:scale(.98)}.clear-btn.confirm{background:var(--danger);color:#fff}.bottom-nav{-webkit-backdrop-filter:blur(14px);padding-bottom:env(safe-area-inset-bottom);z-index:10;background:#ffffffd1;border-top:1px solid #8b7cf624;justify-content:center;display:flex;position:fixed;bottom:0;left:0;right:0}.bottom-nav-inner{width:100%;max-width:var(--content-max-width);height:var(--nav-height);display:flex}.nav-btn{color:var(--text-sub);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:3px;font-size:.65rem;transition:color .15s;display:flex}.nav-btn svg{width:22px;height:22px}.nav-btn.active{color:var(--primary-deep);font-weight:600}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}