*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f0f0f;--bg2: #171717;--bg3: #1e1e1e;--border: rgba(255,255,255,.1);--text: #e8e6e0;--text2: #9c9a92;--text3: #666;--accent: #4A9EFF;--accent-bg: rgba(74,158,255,.12);color-scheme:dark;font-family:Inter,Segoe UI,system-ui,sans-serif;font-size:14px;line-height:1.6;color:var(--text);background:var(--bg)}body{background:var(--bg);overflow-y:auto}.app{display:flex;flex-direction:column;min-height:100vh}.app-header{display:flex;align-items:center;gap:16px;padding:10px 20px;background:var(--bg2);border-bottom:.5px solid var(--border);flex-shrink:0}.app-logo{font-size:16px;font-weight:600;color:var(--text);white-space:nowrap}.header-spacer{flex:1}.contact-links{display:flex;gap:10px;font-size:11px}.contact-links a,.signup-contact a{color:#b8d9ff;text-decoration:none}.contact-links a:hover,.signup-contact a:hover{text-decoration:underline}.midi-status{display:flex;align-items:center;gap:8px}.midi-rescan-btn{display:inline-grid;width:27px;height:27px;place-items:center;color:var(--text2);background:var(--bg3);border:1px solid var(--border);border-radius:50%;cursor:pointer;transition:color .15s,border-color .15s,transform .25s}.midi-rescan-btn:hover{color:var(--accent);border-color:var(--accent);transform:rotate(90deg)}.midi-rescan-btn svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8}.search-form{display:flex;gap:8px;flex:1;max-width:480px}.search-area{position:relative;flex:1;max-width:480px}.search-area .search-form{max-width:none}.search-suggestions{position:absolute;top:calc(100% + 6px);left:0;right:0;z-index:10;background:#202020;border:.5px solid var(--border);border-radius:7px;overflow:hidden;box-shadow:0 10px 24px #00000059}.search-suggestion{width:100%;display:flex;flex-direction:column;align-items:flex-start;gap:1px;padding:8px 11px;color:var(--text);background:none;border:0;text-align:left;cursor:pointer}.search-suggestion:hover{background:var(--accent-bg)}.search-suggestion small{color:var(--text3);font-size:11px}.search-suggestion.local-midi span{color:#b8d9ff}.search-suggestion.online-search{border-top:.5px solid var(--border)}.search-input{flex:1;background:var(--bg3);border:.5px solid var(--border);border-radius:6px;padding:6px 12px;font-size:13px;color:var(--text);outline:none;transition:border-color .15s}.search-input:focus{border-color:var(--accent)}.search-input::placeholder{color:var(--text3)}.search-input:disabled{opacity:.5}.search-btn{background:var(--accent-bg);border:.5px solid var(--accent);border-radius:6px;padding:6px 16px;font-size:13px;color:var(--accent);cursor:pointer;transition:background .15s;white-space:nowrap}.search-btn:hover{background:#4a9eff33}.search-btn:disabled{opacity:.4;cursor:default}.app-main{flex:1;min-height:0;padding:16px 20px;display:flex;flex-direction:column;gap:12px;scrollbar-width:thin;scrollbar-color:var(--border) transparent}.coming-soon-banner{display:flex;justify-content:space-between;align-items:center;gap:12px;background:#4a9eff14;border:.5px solid rgba(74,158,255,.2);border-radius:8px;padding:10px 14px;color:#b8d9ff;font-size:12px}.coming-soon-banner button,.start-song-btn,.signup-modal form button{border:0;border-radius:6px;background:var(--accent);color:#061426;font:inherit;font-weight:700;cursor:pointer;padding:7px 12px}.start-song-btn{margin-top:8px;padding:9px 16px}.error-banner{background:#e24b4a1a;border:.5px solid rgba(226,75,74,.4);border-radius:8px;padding:12px 16px;color:#f4a0a0;font-size:13px;line-height:1.5}.loading-state{display:flex;align-items:center;gap:12px;padding:40px 20px;color:var(--text2);font-size:14px}.spinner{width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;gap:12px;text-align:center;color:var(--text2)}.empty-icon{font-size:48px}.empty-state h2{font-size:20px;font-weight:500;color:var(--text)}.empty-state p{max-width:560px;font-size:14px;line-height:1.6}.signup-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:30;display:grid;place-items:center;padding:20px;background:#000000b3;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.signup-modal{position:relative;width:min(100%,430px);padding:32px;border:1px solid rgba(74,158,255,.38);border-radius:16px;background:#171717;box-shadow:0 28px 80px #0000008c}.signup-note{color:var(--accent);font-size:11px;font-weight:700;letter-spacing:.12em}.signup-modal h1{margin:8px 0;font-size:25px;line-height:1.2}.signup-modal p{color:var(--text2)}.signup-modal form{display:grid;gap:8px;margin-top:22px}.signup-modal label{color:var(--text2);font-size:12px}.signup-modal input{width:100%;padding:10px 11px;color:var(--text);background:var(--bg3);border:1px solid var(--border);border-radius:6px;font:inherit}.signup-modal form button{margin-top:4px}.signup-close{position:absolute;top:10px;right:13px;border:0;background:transparent;color:var(--text2);cursor:pointer;font-size:25px}.signup-skip{display:block;margin:15px auto 0;color:var(--text2);background:transparent;border:0;cursor:pointer;font:inherit;font-size:12px}.signup-message{margin-top:13px;color:#b8d9ff;font-size:12px;text-align:center}.signup-contact{margin-top:16px;font-size:12px;text-align:center}.completion-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:31;display:grid;place-items:center;padding:20px;overflow:hidden;background:#050d16c7}.completion-modal{position:relative;z-index:1;width:min(100%,450px);padding:30px;text-align:center;background:#171717;border:1px solid rgba(151,196,89,.6);border-radius:18px;box-shadow:0 30px 100px #000000b3}.completion-icon{display:block;font-size:44px;animation:celebrate .75s ease-out both}.completion-modal h1{margin:4px 0;font-size:28px}.completion-modal>p{color:var(--text2)}@keyframes celebrate{0%{transform:scale(.2) rotate(-20deg);opacity:0}75%{transform:scale(1.15) rotate(8deg);opacity:1}to{transform:scale(1) rotate(0)}}.confetti{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.confetti i{position:absolute;top:-8%;left:var(--left);width:9px;height:15px;border-radius:2px;background:hsl(var(--hue) 86% 65%);animation:confetti-fall var(--duration) ease-in infinite;animation-delay:var(--delay)}@keyframes confetti-fall{to{transform:translateY(115vh) rotate(540deg)}}.completion-feedback{margin-top:18px;color:var(--text2)}.completion-feedback a{color:#b8d9ff;text-decoration:none}.completion-feedback a:hover{text-decoration:underline}.restart-song-btn{border:0;border-radius:6px;cursor:pointer;font:inherit;font-weight:700}.restart-song-btn{margin-top:16px;padding:7px;color:var(--text2);background:transparent;text-decoration:underline}.section-card{background:var(--bg2);border:.5px solid var(--border);border-radius:10px;padding:14px 16px}.piano-card{padding:16px 8px 8px;overflow:hidden}.song-info-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.song-meta{display:flex;align-items:baseline;gap:6px}.song-title{font-size:18px;font-weight:600;color:var(--text)}.song-artist{font-size:14px;color:var(--text2)}.song-details{display:flex;gap:12px;font-size:12px;color:var(--text3);flex-wrap:wrap}.chord-counter{margin-left:auto;font-size:12px;color:var(--accent);font-weight:500}.midi-source-note{color:#b8d9ff;font-size:12px;padding:0 2px}.progress-control{display:grid;grid-template-columns:auto minmax(160px,1fr) auto;gap:10px;align-items:center;color:var(--text2);font-size:12px}.progress-control strong{color:var(--text);font-weight:600}.progress-control input{accent-color:var(--accent);min-width:0}.piano-sound-status{padding:4px 12px 0;color:var(--text3);font-size:11px;text-align:center}@media(max-width:700px){.progress-control{grid-template-columns:1fr;gap:3px}.coming-soon-banner{align-items:flex-start;flex-direction:column}.signup-modal{padding:28px 22px}.contact-links{display:none}}.chord-detail-header{display:flex;gap:24px;align-items:flex-start;flex-wrap:wrap}.chord-name{font-size:28px;font-weight:700;color:var(--text);line-height:1;margin-bottom:4px}.section-label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--text3)}.hand-details{display:flex;flex-direction:column;gap:8px;flex:1}.hand-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px}.hand-badge{width:28px;height:20px;border-radius:4px;font-size:10px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.hand-badge.lh{background:#b5d4f433;color:#4a9eff;border:.5px solid #185FA5}.hand-badge.rh{background:#fac77526;color:#ef9f27;border:.5px solid #BA7517}.hand-notes{font-weight:600;color:var(--text);font-size:14px;letter-spacing:.03em}.hand-fingers{color:var(--text2);font-size:12px}.hand-desc{color:var(--text3);font-size:11px;font-style:italic}.controls-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.ctrl-btn{background:var(--bg2);color:var(--text);border:.5px solid var(--border);border-radius:8px;padding:8px 12px;cursor:pointer}.ctrl-btn:disabled{opacity:.45;cursor:default}.toggle-label{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text2)}.practice-notes{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;border-radius:8px;background:#6399221a;border:.5px solid rgba(99,153,34,.25);color:#cce6a0;font-size:12px}.practice-icon{flex-shrink:0}
