:root {
  --bg: #0b0f19;
  --surface: rgba(26,31,44,0.75);
  --surface-solid: #1a1f2c;
  --border: rgba(255,255,255,0.08);
  --text: #f0f2f5;
  --text2: #8b95a5;
  --blue: #0ea5e9;
  --blue-g: rgba(14,165,233,0.4);
  --green: #10b981;
  --green-g: rgba(16,185,129,0.4);
  --orange: #f59e0b;
  --orange-g: rgba(245,158,11,0.4);
  --red: #ef4444;
  --red-g: rgba(239,68,68,0.4);
  --purple: #a855f7;
  --purple-g: rgba(168,85,247,0.4);
  /* blur only where truly needed */
  --blur: blur(12px);
}

/* ── Theme: Mixer (professional console look) ── */
[data-theme="mixer"] {
  --bg: #0a0a0a;
  --surface: rgba(20,20,20,0.85);
  --surface-solid: #161616;
  --border: rgba(255,255,255,0.06);
  --text: #d4d4d4;
  --text2: #707070;
  --blue: #22c55e;
  --blue-g: rgba(34,197,94,0.35);
  --green: #22c55e;
  --green-g: rgba(34,197,94,0.4);
  --orange: #eab308;
  --orange-g: rgba(234,179,8,0.35);
  --red: #dc2626;
  --red-g: rgba(220,38,38,0.35);
  --purple: #22c55e;
  --purple-g: rgba(34,197,94,0.3);
  --blur: blur(8px);
}
[data-theme="mixer"] body {
  background-image:
    radial-gradient(circle at 15% 50%, rgba(34,197,94,.06), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(34,197,94,.04), transparent 25%);
}
[data-theme="mixer"] .song-card-icon {
  background: linear-gradient(135deg, #22c55e, #15803d);
}
[data-theme="mixer"] .song-open-btn {
  background: linear-gradient(135deg, #22c55e, #15803d);
}
[data-theme="mixer"] .upload-btn {
  background: linear-gradient(135deg, #22c55e, #15803d);
  box-shadow: 0 3px 12px rgba(34,197,94,0.3);
}
[data-theme="mixer"] .transport-btn.playing {
  background: #22c55e;
  border-color: #22c55e;
  box-shadow: 0 0 12px rgba(34,197,94,0.5);
}
[data-theme="mixer"] .login-card {
  background: rgba(16,16,16,0.95);
}
[data-theme="mixer"] .google-login-btn {
  background: linear-gradient(135deg, #22c55e, #15803d);
  box-shadow: 0 4px 15px rgba(34,197,94,0.4);
}
[data-theme="mixer"] .waveform-canvas {
  filter: hue-rotate(100deg);
}

/* ── Theme: Light (clean white look) ── */
[data-theme="light"] {
  --bg: #f0f2f5;
  --surface: rgba(255,255,255,0.85);
  --surface-solid: #ffffff;
  --border: rgba(0,0,0,0.1);
  --text: #1a1a2e;
  --text2: #64748b;
  --blue: #2563eb;
  --blue-g: rgba(37,99,235,0.25);
  --green: #16a34a;
  --green-g: rgba(22,163,74,0.25);
  --orange: #d97706;
  --orange-g: rgba(217,119,6,0.25);
  --red: #dc2626;
  --red-g: rgba(220,38,38,0.25);
  --purple: #7c3aed;
  --purple-g: rgba(124,58,237,0.25);
  --blur: blur(12px);
}
[data-theme="light"] body {
  background-image:
    radial-gradient(circle at 15% 50%, rgba(37,99,235,.06), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(124,58,237,.05), transparent 25%);
}
[data-theme="light"] .song-card-icon {
  background: linear-gradient(135deg, #2563eb, #7c3aed);
}
[data-theme="light"] .song-open-btn {
  background: linear-gradient(135deg, #2563eb, #7c3aed);
}
[data-theme="light"] .upload-btn {
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  box-shadow: 0 3px 12px rgba(37,99,235,0.25);
}
[data-theme="light"] .transport-btn {
  background: rgba(0,0,0,0.04);
  border-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .transport-btn:hover {
  background: rgba(0,0,0,0.08);
}
[data-theme="light"] .transport-btn.playing {
  background: #16a34a;
  border-color: #16a34a;
  color: #fff;
}
[data-theme="light"] .track {
  background: color-mix(in srgb, var(--track-color, var(--blue)) 6%, #ffffff);
  border-color: color-mix(in srgb, var(--track-color, var(--blue)) 15%, rgba(0,0,0,0.08));
}
[data-theme="light"] .track-visual {
  background: color-mix(in srgb, var(--track-color, var(--blue)) 5%, rgba(0,0,0,0.03));
  border-left-color: color-mix(in srgb, var(--track-color, var(--blue)) 12%, rgba(0,0,0,0.06));
}
[data-theme="light"] .track-btn {
  background: rgba(0,0,0,0.05);
  border-color: rgba(0,0,0,0.1);
  color: #1a1a2e;
}
[data-theme="light"] .login-card {
  background: rgba(255,255,255,0.95);
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}
[data-theme="light"] .google-login-btn {
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  box-shadow: 0 4px 15px rgba(37,99,235,0.3);
}
[data-theme="light"] .header-btn {
  background: rgba(0,0,0,0.04);
  border-color: rgba(0,0,0,0.1);
  color: #1a1a2e;
}
[data-theme="light"] .header-btn:hover {
  background: rgba(0,0,0,0.08);
}
[data-theme="light"] .back-btn {
  background: rgba(0,0,0,0.04);
  border-color: rgba(0,0,0,0.1);
  color: #1a1a2e;
}
[data-theme="light"] .song-card-menu-btn {
  background: rgba(0,0,0,0.04);
  border-color: rgba(0,0,0,0.08);
  color: #64748b;
}
[data-theme="light"] .menu-dropdown, [data-theme="light"] .song-card-dropdown {
  background: #fff;
  border-color: rgba(0,0,0,0.1);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
[data-theme="light"] .menu-item:hover, [data-theme="light"] .song-card-menu-item:hover {
  background: rgba(0,0,0,0.05);
}
[data-theme="light"] .popup-card, [data-theme="light"] .modal-card, [data-theme="light"] .progress-card {
  background: #fff;
  border-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .eq-floating {
  background: #fff;
  border-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .song-notes-panel {
  background: #fff;
  border-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .splash-container {
  color: #1a1a2e;
}

/* Disable GPU-heavy blur on low-power devices */
@media (prefers-reduced-motion: reduce) {
  :root { --blur: none; }
  .popup-overlay, .share-modal-overlay, .progress-overlay { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;
  background-image:radial-gradient(circle at 15% 50%,rgba(14,165,233,.12),transparent 25%),radial-gradient(circle at 85% 30%,rgba(16,185,129,.08),transparent 25%)}
h1,h2,h3{font-family:'Outfit',sans-serif}

/* ═══ Views ═══ */
.view{display:none}.view.active{display:block}

/* ═══ SPLASH SCREEN ═══ */
.splash-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2rem}
.splash-logo{text-align:center;will-change:opacity,transform;animation:splashPulse 1.8s ease-in-out infinite}
.splash-logo h1{font-size:2rem;font-weight:800;margin-top:.6rem}
.splash-logo h1 span{font-weight:300;color:var(--blue)}
@keyframes splashPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(.97)}}
.splash-dots{display:flex;gap:.5rem}
.splash-dots span{width:8px;height:8px;border-radius:50%;background:var(--blue);will-change:transform,opacity;animation:dotBounce 1.2s ease-in-out infinite}
.splash-dots span:nth-child(2){animation-delay:.2s;background:var(--purple)}
.splash-dots span:nth-child(3){animation-delay:.4s;background:#a855f7}
@keyframes dotBounce{0%,80%,100%{transform:scale(0);opacity:.3}40%{transform:scale(1);opacity:1}}

/* ═══ LOGIN ═══ */
.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem}
/* Only the login card gets blur — one promoted layer */
.login-card{background:var(--surface);backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);border:1px solid var(--border);border-radius:20px;padding:2.5rem 2rem;width:100%;max-width:400px;box-shadow:0 8px 40px rgba(0,0,0,.4);animation:fadeUp .5s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.login-logo{text-align:center;margin-bottom:1.5rem}
.login-logo h1{font-size:1.8rem;font-weight:800;margin-top:.5rem}
.login-logo h1 span{font-weight:300;color:var(--blue)}
.login-subtitle{color:var(--text2);font-size:.8rem;margin-top:.2rem}
.input-group{margin-bottom:1rem}
.input-group label{display:block;font-size:.7rem;font-weight:600;color:var(--text2);margin-bottom:.3rem;text-transform:uppercase;letter-spacing:.5px}
.input-group input{width:100%;padding:.7rem .9rem;background:rgba(0,0,0,.3);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:.9rem;font-family:inherit;outline:none;transition:border-color .2s,box-shadow .2s}
.input-group input:focus{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-g)}
.input-group input::placeholder{color:rgba(255,255,255,.2)}
.login-error{color:var(--red);font-size:.75rem;min-height:1rem;margin:.6rem 0 0;text-align:center}

/* Google Login Button */
.google-login-btn{width:100%;padding:.85rem 1rem;background:#fff;color:#333;font-weight:600;font-size:1rem;border:none;border-radius:10px;cursor:pointer;transition:transform .2s,box-shadow .2s;font-family:inherit;display:flex;align-items:center;justify-content:center;gap:.7rem;box-shadow:0 2px 8px rgba(0,0,0,.15);will-change:transform}
.google-login-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.25)}
.google-login-btn:active{transform:translateY(0)}
.google-login-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}
.google-login-btn svg{flex-shrink:0}
.login-hint-small{text-align:center;font-size:.7rem;color:var(--text2);margin-top:1rem;opacity:.7}
.spin-icon{animation:spinLoader .8s linear infinite}
@keyframes spinLoader{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}

/* Input Hints */
.input-hint{display:block;font-size:.6rem;color:var(--text2);margin-top:.2rem;opacity:.7}

/* Success Message */
.login-success{color:var(--green);font-size:.75rem;min-height:1rem;margin-bottom:.4rem;display:flex;align-items:center;gap:.3rem}
.login-success svg{flex-shrink:0}


/* ═══ LIBRARY ═══ */
.library-container{max-width:1100px;margin:0 auto;padding:1rem;min-height:100vh}
/* Header gets blur — one promoted layer for the whole bar */
.library-header{display:flex;justify-content:space-between;align-items:center;background:var(--surface);backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);border:1px solid var(--border);border-radius:12px;padding:.8rem 1.2rem;margin-bottom:1.2rem;overflow:visible;position:relative;z-index:100}
.library-header-left{display:flex;align-items:center;gap:1rem}
.library-header-left h1{font-size:1.4rem;font-weight:800}
.library-header-left h1 span{font-weight:300;color:var(--blue)}
.library-header-right{display:flex;gap:.5rem;align-items:center}
/* ── Dropdown Menu System ── */
.menu-dropdown-wrap{position:relative}
.menu-toggle-btn{background:rgba(255,255,255,.08) !important;border:1px solid var(--border) !important;padding:.45rem .55rem !important;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}
.menu-toggle-btn:hover{background:rgba(14,165,233,.15) !important;border-color:var(--blue) !important}
.menu-dropdown{display:none;position:absolute;top:calc(100% + 6px);right:0;z-index:150;background:var(--surface-solid,#1a1f2e);border:1px solid var(--border);border-radius:12px;padding:.35rem;min-width:210px;box-shadow:0 12px 40px rgba(0,0,0,.6);animation:menuSlide .18s ease}
.menu-dropdown.open{display:block}
@keyframes menuSlide{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.menu-item{display:flex;align-items:center;gap:.55rem;width:100%;padding:.55rem .8rem;border:none;background:none;color:var(--text2,#94a3b8);font-size:.8rem;font-weight:500;font-family:inherit;cursor:pointer;border-radius:8px;transition:all .12s;white-space:nowrap;text-decoration:none;box-sizing:border-box}
.menu-item:hover{background:rgba(255,255,255,.06);color:var(--text,#e2e8f0)}
.menu-item svg{flex-shrink:0;opacity:.7}
.menu-item-upgrade{color:#f59e0b !important;font-weight:600}
.menu-item-upgrade:hover{background:rgba(245,158,11,.12) !important}
.menu-item-pro{color:#f59e0b !important;font-weight:600}
.menu-item-pro:hover{background:rgba(245,158,11,.12) !important}
.menu-item-admin{color:var(--purple,#a855f7) !important;font-weight:600}
.menu-item-admin:hover{background:rgba(168,85,247,.12) !important}
.menu-item-danger{color:#ef4444 !important}
.menu-item-danger:hover{background:rgba(239,68,68,.1) !important}
.menu-divider{height:1px;background:var(--border);margin:.3rem .5rem}
.library-user-badge{display:flex;align-items:center;gap:.3rem;background:rgba(168,85,247,.12);border:1px solid rgba(168,85,247,.25);padding:.25rem .6rem;border-radius:16px;font-size:.7rem;font-weight:500;color:var(--purple)}
.library-title{font-size:1.1rem;font-weight:600;margin-bottom:1rem;color:var(--text2)}
.songs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:.75rem}
/* Song cards: solid background instead of blur — big GPU win */
.song-card{background:var(--surface-solid);border:1px solid var(--border);border-radius:12px;padding:1.2rem;cursor:pointer;transition:border-color .2s,transform .2s,box-shadow .2s;position:relative;will-change:transform;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
@media(hover:hover){.song-card:hover{border-color:var(--blue);transform:translateY(-3px);box-shadow:0 6px 20px rgba(14,165,233,.12)}}
.song-card:active{transform:scale(0.98);opacity:0.85}
.song-card-icon{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--purple));display:flex;align-items:center;justify-content:center;margin-bottom:.75rem}
.song-card-icon svg{color:#fff;width:20px;height:20px}
.song-card h3{font-size:.95rem;font-weight:600;margin-bottom:.2rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.song-card-meta{display:flex;gap:.5rem;color:var(--text2);font-size:.7rem}
.song-open-btn{
  width:100%;margin-top:.6rem;padding:.45rem 0;
  background:linear-gradient(135deg,var(--blue),var(--purple));
  color:#fff;border:none;border-radius:8px;
  font-size:.75rem;font-weight:700;font-family:inherit;
  cursor:pointer;transition:opacity .15s,transform .1s;
  touch-action:manipulation;-webkit-tap-highlight-color:transparent;
}
.song-open-btn:hover{opacity:.9}
.song-open-btn:active{transform:scale(.97);opacity:.8}
.song-open-btn:disabled{opacity:.5;cursor:wait}
.song-card-menu{position:absolute;top:.6rem;right:.6rem}
.song-card-menu-btn{background:rgba(255,255,255,.06);border:1px solid var(--border);color:var(--text2);width:28px;height:28px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;font-weight:700;letter-spacing:-1px;transition:all .15s;opacity:0;line-height:1}
.song-card:hover .song-card-menu-btn,.song-card-menu-btn.active{opacity:1}
.song-card-menu-btn:hover,.song-card-menu-btn.active{background:rgba(255,255,255,.12);color:var(--text)}
.song-card-dropdown{display:none;position:absolute;top:100%;right:0;margin-top:.3rem;z-index:100;background:var(--surface-solid);border:1px solid var(--border);border-radius:8px;padding:.25rem;min-width:150px;box-shadow:0 8px 24px rgba(0,0,0,.5);animation:fadeUp .15s ease}
.song-card-dropdown.open{display:block}
.song-card-menu-item{display:flex;align-items:center;gap:.4rem;width:100%;padding:.5rem .65rem;border:none;background:none;color:var(--text2);font-size:.75rem;font-weight:500;font-family:inherit;cursor:pointer;border-radius:5px;transition:all .12s;white-space:nowrap}
.song-card-menu-item:hover{background:rgba(255,255,255,.06);color:var(--text)}
.song-card-menu-item.song-delete-action{color:var(--red)}
.song-card-menu-item.song-delete-action:hover{background:rgba(239,68,68,.12);color:var(--red)}
.song-card-menu-item.song-upload-action{color:var(--blue)}
.song-card-menu-item.song-upload-action:hover{background:rgba(14,165,233,.12);color:var(--blue)}

/* v1.1: Cloud sync badge */
.song-cloud-badge{position:absolute;bottom:.35rem;right:.35rem;font-size:.85rem;line-height:1;opacity:.8;transition:opacity .2s}
.song-cloud-badge.synced{opacity:.9;filter:drop-shadow(0 0 4px rgba(16,185,129,.5))}
.song-cloud-badge.local{opacity:.5}
.song-card:hover .song-cloud-badge{opacity:1}
/* Keep the icon area relative for badge positioning */
.song-card-icon{position:relative}
.library-empty{display:none;flex-direction:column;align-items:center;justify-content:center;padding:3rem 0;color:var(--text2);text-align:center;gap:.5rem}
.library-empty svg{color:var(--border);width:48px;height:48px}

/* Modal */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:1000;align-items:center;justify-content:center}
.modal-overlay.active{display:flex}
.modal-card{background:var(--surface-solid);border:1px solid var(--border);border-radius:14px;padding:1.5rem;width:92%;max-width:380px;animation:fadeUp .25s ease}
.modal-card h3{margin-bottom:1rem;font-size:1.1rem}
.modal-actions{display:flex;gap:.6rem;margin-top:1.2rem}
.modal-btn{flex:1;padding:.6rem;border-radius:8px;font-weight:600;font-size:.85rem;cursor:pointer;border:none;font-family:inherit;transition:all .2s}
.cancel-btn{background:rgba(255,255,255,.08);color:var(--text2)}
.cancel-btn:hover{background:rgba(255,255,255,.12);color:var(--text)}
.confirm-btn{background:linear-gradient(135deg,var(--blue),#6366f1);color:#fff}

/* ═══ Shared Buttons ═══ */
.header-btn{display:flex;align-items:center;gap:.4rem;padding:.5rem 1rem;border-radius:8px;font-weight:600;font-size:.75rem;cursor:pointer;transition:transform .15s,box-shadow .15s;border:none;font-family:inherit;color:#fff;white-space:nowrap;will-change:transform}
.header-btn svg{width:15px;height:15px;flex-shrink:0}
.new-song-btn{background:linear-gradient(135deg,var(--blue),#6366f1);box-shadow:0 3px 12px var(--blue-g)}
.save-btn{background:linear-gradient(135deg,var(--green),#059669);box-shadow:0 3px 12px var(--green-g)}
.clear-btn{background:linear-gradient(135deg,var(--red),#dc2626);box-shadow:0 3px 12px var(--red-g)}
.export-btn{background:linear-gradient(135deg,var(--purple),#7c3aed);box-shadow:0 3px 12px var(--purple-g)}
.import-btn{background:linear-gradient(135deg,var(--orange),#d97706);box-shadow:0 3px 12px var(--orange-g);cursor:pointer}
.logout-btn{background:rgba(255,255,255,.06);border:1px solid var(--border);color:var(--text2)}
.logout-btn:hover{background:rgba(255,255,255,.1);color:var(--text)}
.sync-btn{background:linear-gradient(135deg,#0d9488,#0891b2);box-shadow:0 3px 12px rgba(13,148,136,.35)}
.sync-btn.needs-sync{animation:syncPulse 2s ease-in-out infinite}
.sync-btn:disabled{opacity:.6;cursor:not-allowed;transform:none !important}
.sync-btn svg.spinning{animation:spinLoader .8s linear infinite}
@keyframes syncPulse{0%,100%{box-shadow:0 3px 12px rgba(13,148,136,.35)}50%{box-shadow:0 3px 22px rgba(13,148,136,.7),0 0 0 4px rgba(13,148,136,.15)}}
.header-btn:hover{transform:translateY(-1px)}

/* ═══ Progress Overlay ═══ */
.progress-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);z-index:2000;align-items:center;justify-content:center}
.progress-overlay.active{display:flex}
.progress-card{background:var(--surface-solid);border:1px solid var(--border);border-radius:16px;padding:2rem 2.5rem;text-align:center;min-width:280px;max-width:360px;animation:fadeUp .25s ease;box-shadow:0 12px 50px rgba(0,0,0,.5)}
.progress-card h3{margin:.8rem 0 .3rem;font-size:1rem}
.progress-card p{color:var(--text2);font-size:.75rem;margin-bottom:1rem;min-height:1rem}
.progress-spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--blue);border-radius:50%;margin:0 auto;will-change:transform;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.progress-bar-track{width:100%;height:5px;background:rgba(255,255,255,.08);border-radius:3px;overflow:hidden}
.progress-bar-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--blue),var(--purple));border-radius:3px;transition:width .3s ease}

/* ═══ DAW ═══ */
.app-container{display:flex;flex-direction:column;height:100vh;height:100dvh;max-width:1400px;margin:0 auto;width:100%;padding:.5rem}
/* Header: single blur layer for whole bar */
.app-header{display:flex;justify-content:space-between;align-items:center;padding:.6rem 1rem;background:var(--surface);backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);border:1px solid var(--border);border-radius:12px;margin-bottom:.5rem}
.app-header-left{display:flex;align-items:center;gap:.6rem}
.back-btn{width:34px;height:34px;border-radius:8px;background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--text2);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0}
.back-btn:hover{background:rgba(255,255,255,.1);color:var(--text)}
.song-info h1{font-size:1.1rem;font-weight:700;line-height:1.2}
.song-band{font-size:.7rem;color:var(--purple);font-weight:500}
.global-controls{display:flex;align-items:center;gap:.4rem;flex-wrap:wrap;justify-content:flex-end}
.upload-btn{display:flex;align-items:center;gap:.3rem;background:linear-gradient(135deg,var(--blue),#2563eb);color:#fff;padding:.5rem 1rem;border-radius:8px;font-weight:600;cursor:pointer;transition:transform .15s;box-shadow:0 3px 12px var(--blue-g);font-size:.75rem;white-space:nowrap;will-change:transform}
.upload-btn:hover{transform:translateY(-1px)}
.upload-btn svg{width:15px;height:15px}
#audio-upload{display:none}
.workspace{flex:1;display:flex;flex-direction:column;gap:.5rem;overflow:hidden;min-height:0}

/* Transport — solid bg, no per-element blur */
.transport-bar{display:flex;align-items:center;justify-content:space-between;background:var(--surface-solid);border:1px solid var(--border);border-radius:10px;padding:.5rem 1rem;gap:.5rem;flex-shrink:0}
.transport-left{display:flex;align-items:center;gap:.5rem;flex:1}
.transport-right{display:flex;align-items:center;justify-content:flex-end;gap:.5rem;flex:1}
.transport-center{display:flex;gap:.4rem;flex-shrink:0}
.transport-btn{background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--text);width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s,box-shadow .15s;flex-shrink:0}
.transport-btn svg{width:18px;height:18px}
.transport-btn:hover{background:rgba(255,255,255,.1)}
.transport-btn.playing{background:var(--green);border-color:var(--green);box-shadow:0 0 12px var(--green-g)}
.time-display{font-family:'Outfit',monospace;font-size:1.1rem;font-weight:600;color:var(--blue);letter-spacing:1px}

/* Master Volume */
.master-vol-section{display:flex;align-items:center;gap:.3rem;padding-right:.4rem;border-right:1px solid var(--border)}
.master-vol-section svg{color:var(--text2);flex-shrink:0}
.master-slider{-webkit-appearance:none;appearance:none;width:70px;height:3px;background:linear-gradient(to right,var(--green),rgba(255,255,255,.12));border-radius:2px;outline:none}
.master-slider::-webkit-slider-thumb{-webkit-appearance:none;width:10px;height:10px;border-radius:50%;background:var(--green);cursor:pointer;box-shadow:0 0 4px var(--green-g)}
.master-val{font-size:.6rem;font-weight:600;font-family:'Outfit',monospace;color:var(--green);min-width:18px;text-align:right}

/* Editable Names */
.editable-name{cursor:default;border-radius:4px;padding:0 2px;transition:background .2s}
.editable-name:hover{background:rgba(255,255,255,.04)}
.editable-name[contenteditable="true"]{outline:1px solid var(--blue);background:rgba(14,165,233,.08);cursor:text;padding:0 4px}

/* Metronome */
.metronome-section{display:flex;align-items:center;gap:.4rem}
.metro-btn.active{background:var(--purple);border-color:var(--purple);box-shadow:0 0 12px var(--purple-g);color:#fff}
.metro-btn.flash{box-shadow:0 0 20px var(--purple-g),0 0 35px rgba(168,85,247,.25)}
.bpm-control{display:flex;align-items:center;gap:.25rem;background:rgba(0,0,0,.3);border-radius:6px;padding:.2rem .4rem;border:1px solid var(--border)}
.bpm-btn{background:rgba(255,255,255,.08);border:none;color:var(--text);width:22px;height:22px;border-radius:4px;font-size:.9rem;cursor:pointer;display:flex;align-items:center;justify-content:center}
.bpm-btn:hover{background:rgba(255,255,255,.15)}
.bpm-display{font-family:'Outfit',monospace;font-size:.9rem;font-weight:600;color:var(--purple);min-width:28px;text-align:center}
.bpm-label{font-size:.55rem;color:var(--text2);text-transform:uppercase}

/* Split */
.split-section{display:flex;align-items:center;gap:.4rem;margin-left:.3rem;padding-left:.5rem;border-left:1px solid var(--border)}
.split-btn.active{background:var(--orange);border-color:var(--orange);box-shadow:0 0 12px var(--orange-g);color:#fff}
.split-label{font-size:.6rem;font-weight:600;color:var(--text2);text-transform:uppercase;white-space:nowrap}
.split-label.active{color:var(--orange)}

/* EQ Toggle */
.eq-toggle-btn.active{background:var(--purple);border-color:var(--purple);box-shadow:0 0 12px var(--purple-g);color:#fff}

/* Floating EQ — this one keeps blur: it's an overlay floating card */
.eq-floating{display:none;position:fixed;bottom:3.5rem;right:1rem;z-index:500;background:rgba(20,24,36,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(168,85,247,.25);border-radius:14px;padding:1rem 1.2rem;box-shadow:0 10px 40px rgba(0,0,0,.5),0 0 20px rgba(168,85,247,.08);animation:eqIn .25s ease;min-width:200px}
.eq-floating.open{display:block}
@keyframes eqIn{from{opacity:0;transform:translateY(15px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}
.eq-floating-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.6rem;padding-bottom:.5rem;border-bottom:1px solid rgba(255,255,255,.05)}
.eq-floating-header h3{display:flex;align-items:center;gap:.3rem;font-size:.75rem;font-weight:600;color:var(--purple)}
.eq-floating-actions{display:flex;align-items:center;gap:.3rem}
.eq-close-btn{background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--text2);width:22px;height:22px;border-radius:5px;font-size:.9rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}
.eq-close-btn:hover{background:rgba(239,68,68,.2);color:var(--red)}
.eq-reset-btn{background:rgba(255,255,255,.06);border:1px solid var(--border);color:var(--text2);padding:.15rem .5rem;border-radius:5px;font-size:.6rem;cursor:pointer;transition:all .2s;font-family:inherit}
.eq-reset-btn:hover{background:rgba(255,255,255,.12);color:var(--text)}
.eq-bands{display:flex;justify-content:center;gap:1.5rem;padding:.3rem 0}
.eq-band{display:flex;flex-direction:column;align-items:center;gap:.3rem}
.eq-band label{font-size:.65rem;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:1px}
.eq-slider{-webkit-appearance:none;appearance:none;width:5px;height:80px;background:rgba(255,255,255,.1);border-radius:3px;outline:none;writing-mode:vertical-lr;direction:rtl}
.eq-slider::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;border-radius:50%;background:var(--purple);cursor:pointer;box-shadow:0 0 6px var(--purple-g)}
.eq-value{font-size:.55rem;color:var(--purple);font-family:'Outfit',monospace}

/* Floating Lyrics Panel */
.lyrics-floating{display:none;position:fixed;top:4.5rem;right:1rem;bottom:5rem;z-index:490;background:rgba(20,24,36,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(14,165,233,.3);border-radius:14px;padding:.8rem;box-shadow:0 10px 40px rgba(0,0,0,.5),0 0 20px rgba(14,165,233,.08);animation:eqIn .25s ease;width:320px;flex-direction:column}
.lyrics-floating.open{display:flex}
.lyrics-btn.active{background:var(--blue);border-color:var(--blue);box-shadow:0 0 12px var(--blue-g);color:#fff}
.lyrics-floating-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem;padding-bottom:.5rem;border-bottom:1px solid rgba(255,255,255,.05);flex-shrink:0}
.lyrics-floating-header h3{display:flex;align-items:center;gap:.4rem;font-size:.8rem;font-weight:600;color:var(--blue)}
.lyrics-floating-actions{display:flex;align-items:center;gap:.3rem}
.lyrics-close-btn{background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--text2);width:22px;height:22px;border-radius:5px;font-size:1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;line-height:1}
.lyrics-close-btn:hover{background:rgba(239,68,68,.2);color:var(--red)}
.lyrics-edit-btn{background:rgba(255,255,255,.06);border:1px solid var(--border);color:var(--text2);padding:.2rem .5rem;border-radius:5px;font-size:.65rem;cursor:pointer;transition:all .2s;font-family:inherit}
.lyrics-edit-btn:hover{background:rgba(255,255,255,.12);color:var(--text)}

/* Lyrics Editor */
.lyrics-editor{display:flex;flex-direction:column;flex:1;gap:.4rem;min-height:0}
#lyrics-textarea{flex:1;background:rgba(0,0,0,.35);border:1px solid var(--border);border-radius:8px;color:var(--text);font-family:'Inter',sans-serif;font-size:.8rem;line-height:1.5;padding:.5rem;resize:none;outline:none;transition:border-color .2s}
#lyrics-textarea:focus{border-color:var(--blue);box-shadow:0 0 0 2px var(--blue-g)}
.lyrics-editor-footer{display:flex;justify-content:space-between;align-items:center;flex-shrink:0}
.btn-save-lyrics{background:linear-gradient(135deg,var(--blue),#2563eb);color:#fff;padding:.3rem .6rem;border-radius:6px;font-size:.7rem;font-weight:600;cursor:pointer;border:none;transition:opacity .2s}
.btn-sync-line{background:rgba(16,185,129,.15);border:1px solid rgba(16,185,129,.3);color:var(--green);padding:.3rem .6rem;border-radius:6px;font-size:.7rem;font-weight:600;cursor:pointer;transition:background .2s}
.btn-sync-line:hover{background:rgba(16,185,129,.25)}

/* Lyrics Display */
.lyrics-display{flex:1;overflow-y:auto;position:relative;min-height:0}
.lyrics-display::-webkit-scrollbar{width:4px}
.lyrics-display::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}
.lyrics-content{padding:.5rem 0;display:flex;flex-direction:column;gap:.25rem}
.lyric-line{font-size:.9rem;color:var(--text2);padding:.2rem .4rem;border-radius:4px;transition:all .2s;cursor:pointer;transform-origin:left center;opacity:0.7}
.lyric-line:hover{background:rgba(255,255,255,.05);color:var(--text);opacity:0.9}
.lyric-line.active{color:#fff;font-weight:600;font-size:1.05rem;opacity:1;text-shadow:0 0 10px rgba(255,255,255,.3);transform:scale(1.02)}
.lyrics-empty{color:var(--text2);font-size:.75rem;text-align:center;padding:2rem 0;font-style:italic}

/* ═══ Song Notes Panel ═══ */
.song-notes-panel{background:var(--surface-solid);border:1px solid var(--border);border-radius:10px;overflow:hidden;flex-shrink:0;transition:border-color .2s}
.song-notes-panel:hover{border-color:rgba(255,255,255,.12)}
.song-notes-header{display:flex;justify-content:space-between;align-items:center;padding:.55rem .8rem;cursor:pointer;user-select:none;transition:background .15s}
.song-notes-header:hover{background:rgba(255,255,255,.03)}
.song-notes-title{display:flex;align-items:center;gap:.4rem;font-size:.75rem;font-weight:600;color:var(--text2)}
.song-notes-title svg{color:var(--orange);flex-shrink:0}
.notes-badge{display:none;font-size:.55rem;background:var(--orange);color:#000;font-weight:700;padding:.05rem .35rem;border-radius:8px;line-height:1.3}
.notes-badge.has-notes{display:inline}
.notes-chevron{color:var(--text2);transition:transform .25s ease;flex-shrink:0}
.song-notes-panel.open .notes-chevron{transform:rotate(180deg)}
.song-notes-body{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease}
.song-notes-panel.open .song-notes-body{max-height:250px;padding:0 .8rem .6rem}
.song-notes-textarea{width:100%;height:120px;background:rgba(0,0,0,.35);border:1px solid var(--border);border-radius:8px;color:var(--text);font-family:'Inter',sans-serif;font-size:.8rem;line-height:1.5;padding:.6rem .7rem;resize:vertical;outline:none;transition:border-color .2s,box-shadow .2s;min-height:80px;max-height:300px}
.song-notes-textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(245,158,11,.15)}
.song-notes-textarea::placeholder{color:rgba(255,255,255,.18);font-style:italic}
.song-notes-footer{display:flex;justify-content:space-between;align-items:center;margin-top:.35rem;padding:0 .1rem}
.notes-autosave{font-size:.6rem;color:var(--green);font-weight:500;opacity:0;transition:opacity .3s}
.notes-autosave.visible{opacity:1}
.notes-char-count{font-size:.55rem;color:var(--text2);font-family:'Outfit',monospace}

/* ═══ Tracks — solid bg for GPU savings ═══ */
.tracks-container{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:.4rem;padding-right:.3rem;min-height:0}
.tracks-container::-webkit-scrollbar{width:5px}
.tracks-container::-webkit-scrollbar-track{background:rgba(0,0,0,.2);border-radius:3px}
.tracks-container::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
.empty-state{display:none;flex-direction:column;align-items:center;justify-content:center;flex:1;color:var(--text2);text-align:center;gap:.5rem}
.empty-state svg{color:var(--border);width:48px;height:48px}
/* Tracks: solid bg, no blur — saves massive GPU resources when many tracks */
.track{display:grid;grid-template-columns:4px 180px 1fr;background:color-mix(in srgb, var(--track-color, var(--blue)) 10%, var(--surface-solid));border:1px solid color-mix(in srgb, var(--track-color, var(--blue)) 20%, var(--border));border-radius:8px;overflow:hidden;transition:border-color .2s,background-color .25s,opacity .2s,transform .15s;min-height:72px}
.track:hover{border-color:color-mix(in srgb, var(--track-color, var(--blue)) 40%, rgba(255,255,255,.12))}
.track.dragging{opacity:.4;transform:scale(.98)}
.track.drag-over{border-top:2px solid var(--blue);margin-top:-1px}

/* Drop overlay for drag & drop audio import */
#drop-overlay{
  display:none;position:absolute;inset:0;z-index:50;
  background:rgba(14,165,233,.12);
  border:2px dashed var(--blue);border-radius:10px;
  pointer-events:none;
  animation:dropPulse 1.5s ease-in-out infinite;
}
#drop-overlay.active{display:flex;align-items:center;justify-content:center}
.drop-overlay-content{
  display:flex;flex-direction:column;align-items:center;gap:.6rem;
  color:var(--blue);font-size:.9rem;font-weight:600;
}
.drop-overlay-content svg{opacity:.7}
@keyframes dropPulse{0%,100%{background:rgba(14,165,233,.08)}50%{background:rgba(14,165,233,.18)}}
.workspace{position:relative}

/* Track Color Strip */
.track-color-strip{background:var(--track-color, var(--blue));transition:background .25s}

/* Track Color Dot */
.track-color-dot{width:14px;height:14px;border-radius:50%;border:2px solid rgba(255,255,255,.2);background:var(--track-color, var(--blue));cursor:pointer;flex-shrink:0;transition:transform .15s,border-color .15s,box-shadow .15s;padding:0}
.track-color-dot:hover{transform:scale(1.2);border-color:rgba(255,255,255,.5);box-shadow:0 0 8px var(--track-color, var(--blue))}

/* Track Color Palette */
.track-color-palette{display:none;flex-wrap:wrap;gap:4px;padding:.3rem .4rem;background:rgba(0,0,0,.35);border-radius:6px;margin-bottom:.2rem;animation:fadeUp .2s ease}
.track-color-palette.open{display:flex}
.color-swatch{width:18px;height:18px;border-radius:4px;border:2px solid transparent;cursor:pointer;transition:transform .1s,border-color .15s;padding:0;flex-shrink:0}
.color-swatch:hover{transform:scale(1.15);border-color:rgba(255,255,255,.6)}
.color-swatch.active{border-color:#fff;box-shadow:0 0 6px rgba(255,255,255,.3)}

.track-sidebar{padding:.4rem .6rem;border-right:1px solid var(--border);background:rgba(0,0,0,.2);display:flex;flex-direction:column;justify-content:center;gap:.2rem}
.track-name-row{display:flex;justify-content:space-between;align-items:center;gap:.3rem}
.track-drag-handle{cursor:grab;color:var(--text2);font-size:.9rem;opacity:.4;transition:opacity .2s;user-select:none;flex-shrink:0;line-height:1}
.track-drag-handle:hover{opacity:1;color:var(--blue)}
.track-drag-handle:active{cursor:grabbing}
.track-name{font-size:.75rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:130px}

/* Track 3-dot Menu */
.track-menu-wrapper{position:relative;flex-shrink:0}
.track-menu-btn{background:none;border:none;color:var(--text2);font-size:1.1rem;cursor:pointer;transition:color .2s,background .15s;padding:.1rem .3rem;border-radius:4px;line-height:1;font-weight:700;letter-spacing:-1px}
.track-menu-btn:hover{color:var(--text);background:rgba(255,255,255,.08)}
.track-menu-dropdown{display:none;position:absolute;top:100%;right:0;z-index:100;background:var(--surface-solid);border:1px solid var(--border);border-radius:8px;padding:.25rem;min-width:140px;box-shadow:0 8px 24px rgba(0,0,0,.5);animation:fadeUp .15s ease}
.track-menu-dropdown.open{display:block}
.track-menu-item{display:flex;align-items:center;gap:.4rem;width:100%;padding:.45rem .6rem;border:none;background:none;color:var(--text2);font-size:.72rem;font-weight:500;font-family:inherit;cursor:pointer;border-radius:5px;transition:all .12s;white-space:nowrap}
.track-menu-item:hover{background:rgba(255,255,255,.06);color:var(--text)}
.track-menu-item.delete-track-btn{color:var(--red)}
.track-menu-item.delete-track-btn:hover{background:rgba(239,68,68,.12);color:var(--red)}
.track-controls{display:flex;align-items:center;justify-content:space-between}
.track-volume-control{display:flex;align-items:center;gap:.2rem;font-size:.6rem;color:var(--text2)}
.volume-slider{-webkit-appearance:none;appearance:none;width:60px;height:3px;background:rgba(255,255,255,.1);border-radius:2px;outline:none}
.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;width:9px;height:9px;border-radius:50%;background:var(--text);cursor:pointer}
.vol-percent{font-size:.55rem;font-weight:600;font-family:'Outfit',monospace;color:var(--text2);min-width:28px;text-align:right;transition:color .2s}
.track-buttons{display:flex;gap:.2rem}
.track-btn{width:22px;height:22px;border-radius:4px;border:1px solid var(--border);background:rgba(255,255,255,.04);color:var(--text2);font-weight:600;font-size:.6rem;cursor:pointer;transition:all .15s}
.track-btn:hover{background:rgba(255,255,255,.1);color:var(--text)}
.track-btn.mute-btn.active{background:var(--red);border-color:var(--red);color:#fff;box-shadow:0 0 6px var(--red-g)}
.track-btn.solo-btn.active{background:var(--orange);border-color:var(--orange);color:#fff;box-shadow:0 0 6px var(--orange-g)}

/* Pan */
.track-pan-control{display:flex;align-items:center;gap:.2rem;padding-top:.2rem;border-top:1px solid rgba(255,255,255,.03)}
.pan-label-l,.pan-label-r{font-size:.55rem;font-weight:700;width:8px;text-align:center}
.pan-label-l{color:var(--blue)}
.pan-label-r{color:var(--green)}
.pan-slider{-webkit-appearance:none;appearance:none;flex:1;height:3px;background:linear-gradient(to right,var(--blue),rgba(255,255,255,.12) 50%,var(--green));border-radius:2px;outline:none}
.pan-slider::-webkit-slider-thumb{-webkit-appearance:none;width:9px;height:9px;border-radius:50%;background:#fff;cursor:pointer;box-shadow:0 0 3px rgba(255,255,255,.3)}
.pan-value{font-size:.5rem;font-weight:600;font-family:'Outfit',monospace;color:var(--text2);min-width:20px;text-align:right}

/* Visual */
.track-visual{position:relative;background:color-mix(in srgb, var(--track-color, var(--blue)) 10%, rgba(0,0,0,.6));border-left:1px solid color-mix(in srgb, var(--track-color, var(--blue)) 20%, rgba(255,255,255,.05));overflow:hidden;cursor:pointer;transition:background-color .25s}
.waveform-canvas{width:100%;height:100%;position:absolute;top:0;left:0}
.live-canvas{width:100%;height:100%;position:absolute;top:0;left:0;z-index:2}
.playhead{position:absolute;top:0;bottom:0;width:2px;background:var(--blue);box-shadow:0 0 8px var(--blue-g);z-index:10;left:0;pointer-events:none;will-change:left}

/* ═══ Offline Badge ═══ */
.offline-badge{display:none;position:fixed;bottom:.8rem;right:.8rem;background:rgba(245,158,11,.12);border:1px solid rgba(245,158,11,.25);color:var(--orange);padding:.4rem .8rem;border-radius:8px;font-size:.7rem;font-weight:600;z-index:9999;align-items:center;gap:.3rem;animation:fadeUp .3s ease}
.offline-badge.visible{display:flex}

/* ═══ Responsive ═══ */

/* ── Tablet / small desktop ── */
@media(max-width:900px){
  .app-header{flex-direction:column;gap:.5rem;padding:.5rem .8rem}
  .global-controls{justify-content:center;width:100%;flex-wrap:wrap}
  .transport-bar{flex-wrap:wrap;justify-content:center;gap:.4rem;padding:.4rem .6rem}
  .transport-left,.transport-right{flex:unset;justify-content:center;width:100%}
  .transport-center{order:-1;width:100%;justify-content:center;padding-bottom:.3rem;border-bottom:1px solid var(--border);margin-bottom:.2rem}
  .library-header{flex-direction:column;gap:.5rem;align-items:flex-start;padding:.6rem 1rem}
  .library-header-right{width:100%;flex-wrap:wrap;justify-content:flex-start;gap:.4rem}
  /* Mobile scroll fix: let the page scroll naturally instead of trapping inside viewport */
  .app-container{height:auto;min-height:100vh;min-height:100dvh}
  .workspace{overflow:visible}
  .tracks-container{overflow-y:visible;max-height:none}
}

/* ── Mobile landscape / large phone ── */
@media(max-width:650px){
  .app-container{padding:.3rem}
  .track{grid-template-columns:4px 140px 1fr;min-height:60px}
  .track-name{max-width:100px;font-size:.7rem}
  .volume-slider{width:50px}
  .songs-grid{grid-template-columns:1fr}
  .song-card{padding:1rem}
  .song-card h3{font-size:1rem}
  .song-card-meta{font-size:.75rem}
  .time-display{font-size:.9rem}
  .eq-floating{bottom:auto;top:50%;left:50%;right:auto;transform:translate(-50%,-50%);min-width:0;width:90%;max-width:320px}
  .eq-floating.open{display:block}
  @keyframes eqIn{from{opacity:0;transform:translate(-50%,-50%) scale(.9)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}
  /* Progress card on mobile */
  .progress-card{min-width:0;width:90%;max-width:320px;padding:1.5rem 1.2rem}
  /* Bigger touch targets for buttons */
  .header-btn{padding:.5rem .8rem;font-size:.7rem}
  .header-btn svg{width:14px;height:14px}
  /* Library header stacks buttons */
  .library-header-left h1{font-size:1.1rem}
  .library-user-badge{font-size:.65rem}
  /* Hide button text on mobile, keep icons */
  .header-btn{gap:.2rem}
  .new-song-btn,.save-btn,.clear-btn,.export-btn,.import-btn,.sync-btn,.logout-btn{padding:.5rem .6rem}
}

/* ── Phone portrait ── */
@media(max-width:450px){
  /* Full-width tracks stacked vertically */
  .track{grid-template-columns:4px 1fr;grid-template-rows:auto 60px}
  .track-color-strip{grid-row:1 / -1}
  .track-sidebar{border-right:none;border-bottom:1px solid var(--border);flex-direction:row;flex-wrap:wrap;align-items:center;gap:.3rem;padding:.4rem .5rem}
  .track-name-row{flex:1;min-width:0}
  .track-name{max-width:unset;font-size:.75rem}
  .track-controls{flex:unset}
  .track-pan-control{flex:1 1 100%;border-top:none;padding-top:0}
  /* Login card mobile */
  .login-card{padding:1.5rem 1.2rem;border-radius:14px;margin:.5rem}
  .login-logo h1{font-size:1.4rem}
  .google-login-btn{font-size:.9rem;padding:.75rem .8rem}
  /* Transport */
  .transport-btn{width:38px;height:38px;-webkit-tap-highlight-color:transparent}
  .transport-btn svg{width:18px;height:18px}
  .split-label{display:none}
  .bpm-label{display:none}
  /* Bigger slider thumbs for touch */
  .volume-slider::-webkit-slider-thumb{width:16px;height:16px}
  .pan-slider::-webkit-slider-thumb{width:16px;height:16px}
  .master-slider::-webkit-slider-thumb{width:16px;height:16px}
  .eq-slider::-webkit-slider-thumb{width:18px;height:18px}
  /* Wider sliders */
  .volume-slider{width:70px;height:5px}
  .pan-slider{height:5px}
  .master-slider{width:80px;height:5px}
  /* Library */
  .library-container{padding:.5rem}
  .library-title{font-size:1rem;margin-bottom:.6rem}
  /* Song card - bigger touch area */
  .song-card{padding:1rem;border-radius:10px}
  .song-card-icon{width:36px;height:36px;border-radius:8px}
  .song-card-menu-btn{opacity:1;width:30px;height:30px}
  /* DAW header */
  .song-info h1{font-size:.95rem}
  .song-band{font-size:.65rem}
  .back-btn{width:38px;height:38px}
  /* Make upload button prominent */
  .upload-btn{font-size:.7rem;padding:.5rem .7rem}
  /* Master volume section */
  .master-vol-section{padding-right:.3rem;gap:.2rem}
  .master-val{font-size:.55rem}
  /* Time display */
  .time-display{font-size:.85rem;letter-spacing:0}
  /* Metronome */
  .metronome-section{gap:.3rem}
  .bpm-control{padding:.15rem .3rem}
  .bpm-btn{width:26px;height:26px;font-size:1rem}
  .bpm-display{font-size:.85rem}
  /* Split section */
  .split-section{margin-left:.2rem;padding-left:.3rem}
  /* Track menu bigger on touch */
  .track-menu-btn{font-size:1.3rem;padding:.2rem .4rem}
  /* Drag handle */
  .track-drag-handle{font-size:1.1rem;opacity:.6}
  /* Vol percent */
  .vol-percent{font-size:.6rem;min-width:32px}
  /* Track buttons bigger */
  .track-btn{width:28px;height:28px;font-size:.7rem;border-radius:6px}
}

/* ── Very small phones (< 360px) ── */
@media(max-width:360px){
  .library-header-left h1{font-size:.95rem}
  .library-header-right{gap:.3rem}
  .header-btn{padding:.4rem .5rem;font-size:.65rem}
  .transport-btn{width:34px;height:34px}
  .bpm-control{padding:.1rem .2rem}
  .song-info h1{font-size:.85rem}
  .global-controls{gap:.3rem}
  .track{grid-template-rows:auto 50px}
}

/* ═══════════════════════════════════════
   v1.1 — CUSTOM POPUP MODAL SYSTEM
   Reemplaza alert() y confirm() nativos
═══════════════════════════════════════ */
.popup-overlay{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.65);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  z-index:9000;
  align-items:center;
  justify-content:center;
  padding:1rem;
  animation:popupFadeIn .2s ease;
}
.popup-overlay.active{display:flex}

@keyframes popupFadeIn{from{opacity:0}to{opacity:1}}
@keyframes popupSlideUp{from{opacity:0;transform:translateY(24px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}
@keyframes popupBounce{0%{transform:scale(.92)}60%{transform:scale(1.04)}100%{transform:scale(1)}}

.popup-card{
  background:rgba(22,27,42,.97);
  border:1px solid rgba(255,255,255,.1);
  border-radius:20px;
  padding:2rem 2rem 1.5rem;
  width:100%;
  max-width:380px;
  text-align:center;
  box-shadow:0 20px 60px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.04);
  animation:popupSlideUp .28s cubic-bezier(.34,1.56,.64,1);
  position:relative;
  overflow:hidden;
}

/* Glow stripe at top based on type */
.popup-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:var(--popup-accent, var(--blue));
  border-radius:20px 20px 0 0;
}

/* Icon wrap */
.popup-icon-wrap{
  width:60px;height:60px;
  border-radius:50%;
  background:rgba(255,255,255,.05);
  border:1.5px solid var(--popup-accent, var(--blue));
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 1rem;
  font-size:1.6rem;
  animation:popupBounce .4s .1s ease both;
  box-shadow:0 0 20px color-mix(in srgb, var(--popup-accent, var(--blue)) 30%, transparent);
}

/* Type variants */
.popup-card.type-info    {--popup-accent: var(--blue)}
.popup-card.type-success {--popup-accent: var(--green)}
.popup-card.type-warning {--popup-accent: var(--orange)}
.popup-card.type-error   {--popup-accent: var(--red)}
.popup-card.type-danger  {--popup-accent: var(--red)}
.popup-card.type-confirm {--popup-accent: var(--blue)}

.popup-title{
  font-family:'Outfit',sans-serif;
  font-size:1.1rem;
  font-weight:700;
  margin-bottom:.5rem;
  color:var(--text);
  line-height:1.3;
}

.popup-message{
  color:var(--text2);
  font-size:.85rem;
  line-height:1.6;
  margin-bottom:1.4rem;
  white-space:pre-line; /* Respects \n in messages */
}

.popup-actions{
  display:flex;
  gap:.6rem;
  justify-content:center;
  flex-wrap:wrap;
}

/* Popup buttons */
.popup-btn{
  flex:1;
  min-width:100px;
  max-width:160px;
  padding:.65rem 1rem;
  border-radius:10px;
  font-weight:600;
  font-size:.85rem;
  cursor:pointer;
  border:none;
  font-family:inherit;
  transition:transform .15s,box-shadow .15s,opacity .15s;
  will-change:transform;
}
.popup-btn:hover{transform:translateY(-2px)}
.popup-btn:active{transform:translateY(0);opacity:.85}

.popup-btn-primary{
  background:var(--popup-accent, var(--blue));
  color:#fff;
  box-shadow:0 4px 14px color-mix(in srgb, var(--popup-accent, var(--blue)) 45%, transparent);
}
.popup-btn-secondary{
  background:rgba(255,255,255,.07);
  color:var(--text2);
  border:1px solid var(--border);
}
.popup-btn-secondary:hover{background:rgba(255,255,255,.12);color:var(--text)}

.popup-btn-danger{
  background:var(--red);
  color:#fff;
  box-shadow:0 4px 14px var(--red-g);
}

/* Responsive popup */
@media(max-width:450px){
  .popup-card{padding:1.5rem 1.2rem 1.2rem;border-radius:16px;max-width:100%}
  .popup-btn{min-width:80px;font-size:.8rem;padding:.6rem .8rem}
  .popup-icon-wrap{width:50px;height:50px;font-size:1.3rem}
}

/* ═══════════════════════════════════════
   SHARE MODAL — Permission-based sharing
═══════════════════════════════════════ */
.share-modal-overlay{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.7);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  z-index:8000;
  align-items:center;
  justify-content:center;
  padding:1rem;
  transition:opacity .3s;
  opacity:0;
}
.share-modal-overlay.active{display:flex;opacity:1}

.share-modal{
  background:var(--surface-solid);
  border:1px solid var(--border);
  border-radius:18px;
  width:100%;
  max-width:500px;
  max-height:85vh;
  display:flex;
  flex-direction:column;
  box-shadow:0 20px 60px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.04);
  animation:popupSlideUp .3s cubic-bezier(.34,1.56,.64,1);
  overflow:hidden;
}

.share-modal-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:1.2rem 1.5rem;
  border-bottom:1px solid var(--border);
  flex-shrink:0;
}
.share-modal-header h3{
  font-size:1.1rem;
  font-weight:700;
  font-family:'Outfit',sans-serif;
}
.share-modal-close{
  background:rgba(255,255,255,.06);
  border:1px solid var(--border);
  color:var(--text2);
  width:28px;height:28px;
  border-radius:6px;
  font-size:1.1rem;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:all .2s;
  line-height:1;
}
.share-modal-close:hover{background:rgba(239,68,68,.2);color:var(--red)}

.share-modal-body{
  padding:1rem 1.5rem;
  overflow-y:auto;
  flex:1;
}

.share-section{
  margin-bottom:1.2rem;
  padding-bottom:1rem;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.share-section:last-child{border-bottom:none;margin-bottom:0}
.share-section h4{
  font-size:.8rem;
  font-weight:700;
  color:var(--text2);
  text-transform:uppercase;
  letter-spacing:.5px;
  margin-bottom:.6rem;
  display:flex;
  align-items:center;
  gap:.4rem;
}

/* Code box */
.share-code-box{
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:rgba(0,0,0,.35);
  border:1px solid var(--border);
  border-radius:8px;
  padding:.6rem .8rem;
  gap:.5rem;
}
.share-code-box code{
  font-family:'Outfit',monospace;
  font-size:.72rem;
  color:var(--blue);
  word-break:break-all;
  flex:1;
}
.share-copy-btn{
  background:linear-gradient(135deg,var(--purple),#7c3aed);
  color:#fff;
  border:none;
  padding:.35rem .8rem;
  border-radius:6px;
  font-size:.7rem;
  font-weight:600;
  cursor:pointer;
  transition:transform .15s;
  flex-shrink:0;
  font-family:inherit;
}
.share-copy-btn:hover{transform:translateY(-1px)}

/* Invite form */
.share-invite-form{
  display:flex;
  gap:.4rem;
  align-items:center;
}
.share-invite-form input{
  flex:1;
  padding:.5rem .7rem;
  background:rgba(0,0,0,.35);
  border:1px solid var(--border);
  border-radius:8px;
  color:var(--text);
  font-size:.8rem;
  font-family:inherit;
  outline:none;
  transition:border-color .2s;
  min-width:0;
}
.share-invite-form input:focus{border-color:var(--blue);box-shadow:0 0 0 2px var(--blue-g)}
.share-invite-form input::placeholder{color:rgba(255,255,255,.2)}
.share-invite-form select{
  padding:.5rem .4rem;
  background:rgba(0,0,0,.35);
  border:1px solid var(--border);
  border-radius:8px;
  color:var(--text);
  font-size:.72rem;
  font-family:inherit;
  outline:none;
  cursor:pointer;
  flex-shrink:0;
}
.share-invite-btn{
  background:linear-gradient(135deg,var(--green),#059669);
  color:#fff;
  border:none;
  padding:.5rem .8rem;
  border-radius:8px;
  font-size:.72rem;
  font-weight:700;
  cursor:pointer;
  transition:transform .15s;
  flex-shrink:0;
  font-family:inherit;
  white-space:nowrap;
}
.share-invite-btn:hover{transform:translateY(-1px)}

.share-invite-msg{
  font-size:.72rem;
  margin-top:.4rem;
  min-height:1rem;
  transition:color .2s;
}

.share-role-legend{
  display:flex;
  gap:.6rem;
  margin-top:.5rem;
  flex-wrap:wrap;
}
.share-role-legend span{
  font-size:.6rem;
  color:var(--text2);
  opacity:.7;
}

/* Share list */
.share-list{
  display:flex;
  flex-direction:column;
  gap:.4rem;
}

.share-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:rgba(0,0,0,.2);
  border:1px solid var(--border);
  border-radius:8px;
  padding:.5rem .7rem;
  gap:.5rem;
  transition:border-color .2s;
}
.share-item:hover{border-color:rgba(255,255,255,.12)}

.share-item-info{
  display:flex;
  flex-direction:column;
  gap:.1rem;
  min-width:0;
  flex:1;
}
.share-item-name{
  font-size:.8rem;
  font-weight:600;
  color:var(--text);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.share-item-email{
  font-size:.6rem;
  color:var(--text2);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.share-item-actions{
  display:flex;
  align-items:center;
  gap:.3rem;
  flex-shrink:0;
}

.share-role-select{
  padding:.25rem .3rem;
  background:rgba(0,0,0,.35);
  border:1px solid var(--border);
  border-radius:5px;
  color:var(--text);
  font-size:.65rem;
  font-family:inherit;
  outline:none;
  cursor:pointer;
}

.share-revoke-btn{
  background:rgba(239,68,68,.1);
  border:1px solid rgba(239,68,68,.2);
  color:var(--red);
  width:24px;height:24px;
  border-radius:5px;
  font-size:.8rem;
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:all .15s;
  line-height:1;
}
.share-revoke-btn:hover{background:rgba(239,68,68,.25);border-color:var(--red)}

.share-role-badge-tag{
  display:inline-block;
  padding:.15rem .5rem;
  border-radius:4px;
  font-size:.6rem;
  font-weight:700;
  color:#fff;
  white-space:nowrap;
}

.share-sync-btn{
  background:linear-gradient(135deg,#0d9488,#0891b2);
  color:#fff;
  border:none;
  padding:.3rem .6rem;
  border-radius:5px;
  font-size:.65rem;
  font-weight:600;
  cursor:pointer;
  transition:transform .15s;
  font-family:inherit;
  white-space:nowrap;
}
.share-sync-btn:hover{transform:translateY(-1px)}

.share-count-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--blue);
  color:#fff;
  font-size:.55rem;
  font-weight:700;
  min-width:18px;
  height:18px;
  border-radius:9px;
  padding:0 5px;
  text-transform:none;
  letter-spacing:0;
}

.share-empty-msg{
  color:var(--text2);
  font-size:.75rem;
  font-style:italic;
  text-align:center;
  padding:.8rem 0;
  opacity:.6;
}

/* Join band form */
.share-join-form{
  display:flex;
  gap:.4rem;
  margin-bottom:.6rem;
}
.share-join-form input{
  flex:1;
  padding:.5rem .7rem;
  background:rgba(0,0,0,.35);
  border:1px solid var(--border);
  border-radius:8px;
  color:var(--text);
  font-size:.8rem;
  font-family:'Outfit',monospace;
  outline:none;
  transition:border-color .2s;
  min-width:0;
}
.share-join-form input:focus{border-color:var(--purple);box-shadow:0 0 0 2px var(--purple-g)}
.share-join-form input::placeholder{color:rgba(255,255,255,.2);font-family:'Inter',sans-serif}
.share-join-btn{
  background:linear-gradient(135deg,var(--purple),#7c3aed);
  color:#fff;
  border:none;
  padding:.5rem 1rem;
  border-radius:8px;
  font-size:.75rem;
  font-weight:700;
  cursor:pointer;
  transition:transform .15s;
  flex-shrink:0;
  font-family:inherit;
  white-space:nowrap;
}
.share-join-btn:hover{transform:translateY(-1px)}

/* ═══ DAW Read-Only Tracks (for readers) ═══ */
.read-only-tracks .track-menu-wrapper{display:none}
.read-only-tracks .track-drag-handle{display:none}
.read-only-tracks .track-color-dot{pointer-events:none;opacity:.5}

/* ═══ Responsive Share Modal ═══ */
@media(max-width:500px){
  .share-modal{max-width:100%;border-radius:14px}
  .share-modal-body{padding:.8rem 1rem}
  .share-invite-form{flex-wrap:wrap}
  .share-invite-form input{width:100%}
  .share-invite-form select{flex:1}
  .share-invite-btn{flex:1}
  .share-item{flex-wrap:wrap;gap:.3rem}
  .share-item-actions{width:100%;justify-content:flex-end}
  .share-role-legend{flex-direction:column;gap:.2rem}
}