/* ScoreForge V4 — Main Stylesheet */
*{margin:0;padding:0;box-sizing:border-box;}
:root{--pri:#6366f1;--pri2:#818cf8;--acc:#f59e0b;--bg:#06060c;--bg2:rgba(255,255,255,0.02);
--bg3:rgba(255,255,255,0.05);--bg4:rgba(255,255,255,0.08);--tx:#e8e8ef;--tx2:#6b6b80;
--tx3:#44445a;--bd:rgba(255,255,255,0.07);--ok:#22c55e;--warn:#f59e0b;--err:#ef4444;
--r:14px;--glass:rgba(12,12,20,0.75);--tier-free:#22c55e;--tier-pro:#3b82f6;--tier-ultra:#a855f7;}
body{font-family:system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--tx);min-height:100vh;overflow-x:hidden;}

/* Background FX */
.bg-fx{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;}
.bg-fx .orb{position:absolute;border-radius:50%;filter:blur(100px);animation:orbFloat 20s ease-in-out infinite;}
.bg-fx .orb:nth-child(1){width:500px;height:500px;background:rgba(99,102,241,0.1);top:-150px;left:20%;animation-delay:0s;}
.bg-fx .orb:nth-child(2){width:400px;height:400px;background:rgba(168,85,247,0.08);bottom:-100px;right:10%;animation-delay:-7s;}
.bg-fx .orb:nth-child(3){width:300px;height:300px;background:rgba(245,158,11,0.06);top:40%;left:60%;animation-delay:-14s;}
@keyframes orbFloat{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(30px,-40px) scale(1.1)}50%{transform:translate(-20px,30px) scale(0.95)}75%{transform:translate(40px,20px) scale(1.05)}}

/* Top Bar */
.topbar{position:sticky;top:0;z-index:100;padding:8px 20px;background:rgba(6,6,12,0.92);backdrop-filter:blur(30px);border-bottom:1px solid var(--bd);display:flex;align-items:center;gap:12px;}
.back{display:flex;align-items:center;gap:5px;color:var(--tx2);text-decoration:none;font-size:.8rem;transition:.2s;}
.back:hover{color:var(--pri);}
.back svg{width:18px;height:18px;}
.logo{font-size:.95rem;font-weight:900;background:linear-gradient(135deg,var(--pri),var(--acc));-webkit-background-clip:text;-webkit-text-fill-color:transparent;}
.logo-v{font-size:.55rem;font-weight:700;color:var(--tx3);margin-left:2px;vertical-align:super;}

/* Tier Selector */
.tier-bar{display:flex;gap:2px;margin-left:auto;background:var(--bg2);border-radius:10px;padding:2px;border:1px solid var(--bd);}
.tier-btn{padding:5px 14px;border-radius:8px;border:none;background:none;color:var(--tx3);font-size:.72rem;font-weight:700;cursor:pointer;transition:.25s;display:flex;align-items:center;gap:4px;position:relative;}
.tier-btn.active{color:#fff;box-shadow:0 2px 12px rgba(0,0,0,0.3);}
.tier-btn[data-tier="free"].active{background:linear-gradient(135deg,#16a34a,#22c55e);}
.tier-btn[data-tier="pro"].active{background:linear-gradient(135deg,#2563eb,#3b82f6);}
.tier-btn[data-tier="ultra"].active{background:linear-gradient(135deg,#7c3aed,#a855f7);}
.tier-btn:hover:not(.active){background:var(--bg3);color:var(--tx2);}
.tier-dot{width:5px;height:5px;border-radius:50%;display:inline-block;}
.tier-btn[data-tier="free"] .tier-dot{background:var(--tier-free);}
.tier-btn[data-tier="pro"] .tier-dot{background:var(--tier-pro);}
.tier-btn[data-tier="ultra"] .tier-dot{background:var(--tier-ultra);}
.icon-btn{background:none;border:1px solid var(--bd);border-radius:8px;padding:5px 8px;color:var(--tx2);cursor:pointer;font-size:.82rem;transition:.2s;}
.icon-btn:hover{border-color:var(--pri);color:var(--pri);}

/* Layout */
.app{position:relative;z-index:1;display:flex;flex-direction:column;height:calc(100vh - 50px);overflow:hidden;}

/* ===== HERO UPLOAD ===== */
.hero{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;transition:all .5s ease;position:relative;}
.hero.collapsed{flex:0;padding:0;overflow:hidden;max-height:0;opacity:0;}
.hero-title{font-size:2rem;font-weight:900;text-align:center;margin-bottom:6px;background:linear-gradient(135deg,var(--pri),var(--acc),var(--pri2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:shimmer 3s ease-in-out infinite;}
@keyframes shimmer{0%,100%{filter:brightness(1)}50%{filter:brightness(1.2)}}
.hero-sub{color:var(--tx2);font-size:.9rem;text-align:center;margin-bottom:30px;}
.hero-steps{display:flex;gap:24px;margin-bottom:32px;}
.hero-step{display:flex;flex-direction:column;align-items:center;gap:6px;}
.hero-step .num{width:28px;height:28px;border-radius:50%;background:var(--bg3);border:1px solid var(--bd);display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:800;color:var(--pri);}
.hero-step .txt{font-size:.72rem;color:var(--tx2);}
.hero-step .arrow{color:var(--tx3);font-size:1.2rem;align-self:center;margin-top:-8px;}
.upload-zone{width:100%;max-width:560px;border:2px dashed rgba(99,102,241,0.3);border-radius:16px;padding:40px 24px;text-align:center;cursor:pointer;transition:.4s;background:rgba(99,102,241,0.02);position:relative;overflow:hidden;}
.upload-zone::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 50% 50%,rgba(99,102,241,0.05),transparent 70%);transition:.4s;}
.upload-zone:hover,.upload-zone.dragover{border-color:var(--pri);background:rgba(99,102,241,0.06);transform:scale(1.01);}
.upload-zone .icon{font-size:2.8rem;margin-bottom:10px;filter:drop-shadow(0 0 20px rgba(99,102,241,0.3));}
.upload-zone h3{font-size:1rem;font-weight:700;margin-bottom:4px;}
.upload-zone p{color:var(--tx2);font-size:.78rem;}
.upload-zone input{display:none;}

/* ===== FILE BAR ===== */
.file-bar{display:none;padding:10px 20px;background:var(--bg2);border-bottom:1px solid var(--bd);align-items:center;gap:12px;}
.file-bar.show{display:flex;}
.file-bar .fi{font-size:1.5rem;}
.file-bar .fn{font-weight:700;font-size:.85rem;}
.file-bar .fm{color:var(--tx2);font-size:.72rem;}
.file-bar .fx{margin-left:auto;background:none;border:none;color:var(--err);cursor:pointer;font-size:1rem;padding:4px 8px;border-radius:6px;transition:.2s;}
.file-bar .fx:hover{background:rgba(239,68,68,0.1);}

/* ===== CONTROLS ===== */
.ctrl-row{display:none;padding:10px 20px;gap:8px;align-items:center;border-bottom:1px solid var(--bd);flex-wrap:wrap;}
.ctrl-row.show{display:flex;}
.set-pill{background:var(--bg2);border:1px solid var(--bd);border-radius:8px;padding:4px 10px;display:flex;align-items:center;gap:6px;}
.set-pill label{font-size:.58rem;font-weight:700;color:var(--tx3);text-transform:uppercase;letter-spacing:.4px;white-space:nowrap;}
.set-pill select,.set-pill input[type="number"]{padding:3px 6px;background:var(--bg3);border:1px solid var(--bd);border-radius:5px;color:var(--tx);font-size:.78rem;min-width:70px;}
.set-pill select:focus,.set-pill input:focus{outline:none;border-color:var(--pri);}
.btn{padding:7px 14px;border-radius:8px;border:1px solid var(--bd);background:var(--bg3);color:var(--tx);font-size:.76rem;font-weight:600;cursor:pointer;transition:.2s;display:flex;align-items:center;gap:5px;white-space:nowrap;}
.btn:hover{border-color:var(--pri);background:rgba(99,102,241,0.08);transform:translateY(-1px);}
.btn:active{transform:scale(0.97);}
.btn:disabled{opacity:.3;cursor:default;transform:none;}
.btn.primary{background:linear-gradient(135deg,var(--pri),#4f46e5);border-color:transparent;color:#fff;box-shadow:0 2px 12px rgba(99,102,241,0.3);}
.btn.primary:hover{box-shadow:0 4px 20px rgba(99,102,241,0.4);}
.ctrl-spacer{flex:1;}
.spin{width:12px;height:12px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:sp .5s linear infinite;display:inline-block;}
@keyframes sp{to{transform:rotate(360deg)}}

/* ===== PIPELINE PROGRESS ===== */
.pipeline{display:none;padding:10px 20px;border-bottom:1px solid var(--bd);}
.pipeline.show{display:block;}
.pipe-bar{display:flex;gap:4px;margin-bottom:8px;overflow-x:auto;}
.pipe-step{display:flex;align-items:center;gap:4px;padding:4px 10px;border-radius:6px;background:var(--bg2);border:1px solid var(--bd);font-size:.68rem;font-weight:600;color:var(--tx3);white-space:nowrap;transition:.3s;}
.pipe-step.active{border-color:var(--pri);color:var(--pri);background:rgba(99,102,241,0.06);animation:pipePulse 1.5s ease-in-out infinite;}
.pipe-step.done{border-color:var(--ok);color:var(--ok);background:rgba(34,197,94,0.06);}
.pipe-step .val{font-weight:800;color:var(--acc);margin-left:2px;}
.pipe-arrow{color:var(--tx3);font-size:.7rem;opacity:.4;}
@keyframes pipePulse{0%,100%{box-shadow:0 0 0 0 rgba(99,102,241,0)}50%{box-shadow:0 0 0 4px rgba(99,102,241,0.15)}}
.pbar-bg{width:100%;height:3px;background:var(--bg3);border-radius:2px;overflow:hidden;}
.pbar-fill{height:100%;background:linear-gradient(90deg,var(--pri),var(--acc),var(--pri2));border-radius:2px;width:0%;transition:width .3s;}

/* ===== STATS ===== */
.stats{display:none;padding:8px 20px;gap:6px;}
.stats.show{display:flex;flex-wrap:wrap;}
.scard{background:var(--glass);backdrop-filter:blur(16px);border:1px solid var(--bd);border-radius:10px;padding:8px 14px;text-align:center;flex:1;min-width:85px;transition:.2s;}
.scard:hover{border-color:var(--pri);transform:translateY(-1px);}
.scard .sv{font-size:1.15rem;font-weight:900;background:linear-gradient(135deg,var(--pri),var(--acc));-webkit-background-clip:text;-webkit-text-fill-color:transparent;}
.scard .sl{font-size:.55rem;color:var(--tx3);margin-top:1px;text-transform:uppercase;letter-spacing:.5px;}
.scard .conf{font-size:.5rem;margin-top:1px;}
.conf-ok{color:var(--ok);}
.conf-warn{color:var(--warn);}

/* ===== WORKSPACE ===== */
.workspace{display:none;flex:1;overflow:hidden;padding:0 20px 0;flex-direction:column;}
.workspace.show{display:flex;}
.ws-tabs{display:flex;gap:1px;background:var(--bg2);border-radius:10px;padding:2px;margin:8px 0;border:1px solid var(--bd);flex-shrink:0;position:relative;}
.ws-tab{padding:6px 12px;border-radius:8px;border:none;background:none;color:var(--tx3);font-size:.72rem;font-weight:600;cursor:pointer;transition:.2s;flex:1;text-align:center;}
.ws-tab.active{background:var(--pri);color:#fff;box-shadow:0 2px 8px rgba(99,102,241,0.3);}
.ws-tab:hover:not(.active){background:var(--bg3);color:var(--tx2);}
.ws-panel{flex:1;overflow:hidden;display:none;border-radius:10px;border:1px solid var(--bd);background:var(--bg2);min-height:0;}
.ws-panel.active{display:flex;flex-direction:column;}
.panel-header{padding:8px 14px;border-bottom:1px solid var(--bd);display:flex;align-items:center;justify-content:space-between;flex-shrink:0;}
.panel-header h3{font-size:.82rem;display:flex;align-items:center;gap:5px;}
.panel-body{flex:1;overflow:auto;padding:10px;}
#pianoroll-container{flex:1;min-height:0;overflow:hidden;}

/* Waveform panel */
#waveform-container{height:120px;flex-shrink:0;margin-bottom:4px;}

/* Score */
#staff-output{border-radius:8px;padding:12px;min-height:200px;background:#0d0d18;overflow:auto;}
#staff-output svg text{fill:#ccc !important;}
#staff-output svg .vf-stave line,#staff-output svg .vf-stave path{stroke:#555 !important;}

/* Jianpu */
.jianpu{min-height:200px;font-family:'Inter',monospace;padding:12px;}
.jianpu-meta{color:var(--tx2);font-size:.8rem;margin-bottom:10px;padding-bottom:6px;border-bottom:1px solid var(--bd);}
.jianpu-measure{display:inline-flex;align-items:flex-end;gap:1px;border-right:1.5px solid var(--tx3);padding-right:6px;margin-right:6px;margin-bottom:10px;min-width:80px;}
.jn{display:inline-flex;flex-direction:column;align-items:center;min-width:22px;padding:2px;font-size:1rem;font-weight:700;position:relative;cursor:pointer;transition:.15s;border-radius:4px;}
.jn:hover{background:rgba(99,102,241,0.1);}
.jn.playing{background:rgba(34,197,94,0.15);color:var(--ok);}
.jn .dot-a{position:absolute;top:-8px;font-size:.45rem;color:var(--pri2);}
.jn .dot-b{position:absolute;bottom:-8px;font-size:.45rem;color:var(--pri2);}
.jn .ul{width:18px;height:1.5px;background:var(--tx);margin-top:1px;}
.jn-rest{color:var(--tx3);}
.jn-chord{color:var(--acc);font-size:.62rem;font-weight:700;text-align:center;margin-bottom:2px;}

/* TAB */
.tab-output{font-family:'Courier New',monospace;font-size:.82rem;color:var(--tx);white-space:pre;line-height:1.4;padding:12px;overflow-x:auto;}

/* Table */
.ntable-wrap{max-height:100%;overflow-y:auto;border-radius:8px;border:1px solid var(--bd);}
.ntable{width:100%;border-collapse:collapse;font-size:.75rem;}
.ntable th{text-align:left;padding:6px 8px;background:var(--bg3);color:var(--tx2);font-weight:600;border-bottom:1px solid var(--bd);position:sticky;top:0;z-index:1;}
.ntable td{padding:5px 8px;border-bottom:1px solid var(--bd);cursor:pointer;transition:.1s;}
.ntable tr:hover td{background:rgba(99,102,241,0.04);}
.ntable tr.playing td{background:rgba(34,197,94,0.08) !important;}
.nbadge{display:inline-block;padding:1px 6px;border-radius:4px;font-weight:700;font-size:.7rem;background:rgba(99,102,241,0.12);color:var(--pri);}
.nbadge.rest{background:rgba(255,255,255,0.04);color:var(--tx3);}
.orn-badge{font-size:.58rem;padding:1px 4px;border-radius:3px;background:rgba(245,158,11,0.12);color:var(--acc);margin-left:3px;}
.dyn-badge{font-size:.6rem;font-weight:800;font-style:italic;color:var(--tx2);margin-left:2px;}

/* Chords */
.chord-row{display:flex;flex-wrap:wrap;gap:4px;padding:8px 14px;border-top:1px solid var(--bd);}
.chord-chip{padding:3px 8px;border-radius:5px;background:rgba(245,158,11,0.08);color:var(--acc);font-size:.72rem;font-weight:700;border:1px solid rgba(245,158,11,0.15);}

/* ===== TRANSPORT ===== */
.transport{display:none;padding:6px 20px 8px;border-top:1px solid var(--bd);background:var(--glass);backdrop-filter:blur(24px);flex-shrink:0;}
.transport.show{display:block;}
.tr-mini-wave{height:32px;width:100%;margin-bottom:6px;border-radius:4px;overflow:hidden;}
.tr-controls{display:flex;align-items:center;gap:8px;}
.tr-btn{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:8px;border:1px solid var(--bd);background:var(--bg3);color:var(--tx);cursor:pointer;transition:.2s;font-size:.85rem;}
.tr-btn:hover{border-color:var(--pri);background:rgba(99,102,241,0.1);}
.tr-btn.playing{background:var(--ok);border-color:var(--ok);color:#fff;}
.tr-time{font-size:.78rem;font-weight:600;font-variant-numeric:tabular-nums;min-width:100px;color:var(--tx);}
.tr-sep{width:1px;height:20px;background:var(--bd);}
/* Mode toggle */
.tr-mode{display:flex;gap:1px;background:var(--bg2);border-radius:6px;padding:1px;border:1px solid var(--bd);}
.tr-mode-btn{padding:3px 8px;border:none;border-radius:5px;background:none;color:var(--tx3);font-size:.65rem;font-weight:600;cursor:pointer;transition:.2s;}
.tr-mode-btn.active{background:var(--pri);color:#fff;}
/* Speed */
.tr-speed{display:flex;gap:1px;background:var(--bg2);border-radius:6px;padding:1px;border:1px solid var(--bd);}
.tr-speed-btn{padding:3px 6px;border:none;border-radius:5px;background:none;color:var(--tx3);font-size:.6rem;font-weight:700;cursor:pointer;transition:.2s;}
.tr-speed-btn.active{background:var(--acc);color:#000;}
/* Volume */
.tr-vol{display:flex;align-items:center;gap:4px;}
.tr-vol input[type="range"]{width:60px;height:3px;-webkit-appearance:none;background:var(--bd);border-radius:2px;outline:none;}
.tr-vol input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:10px;height:10px;border-radius:50%;background:var(--pri);cursor:pointer;}
/* Voice select */
.tr-voice select{padding:2px 6px;background:var(--bg3);border:1px solid var(--bd);border-radius:5px;color:var(--tx);font-size:.68rem;}
.tr-meta{margin-left:auto;display:flex;gap:10px;font-size:.7rem;color:var(--tx2);}
.tr-meta span{display:flex;align-items:center;gap:3px;}
.tr-meta strong{color:var(--tx);font-weight:700;}

/* ===== EXPORT MENU ===== */
.export-menu{position:relative;}
.export-dropdown{display:none;position:absolute;bottom:calc(100% + 4px);right:0;background:rgba(18,18,30,0.95);border:1px solid var(--bd);border-radius:10px;padding:4px;min-width:180px;box-shadow:0 8px 32px rgba(0,0,0,0.5);backdrop-filter:blur(20px);}
.export-dropdown.show{display:block;}
.ex-item{display:flex;align-items:center;gap:6px;padding:7px 10px;border-radius:7px;cursor:pointer;color:var(--tx);font-size:.76rem;font-weight:500;transition:.15s;}
.ex-item:hover{background:var(--bg3);}
.ex-item .badge{font-size:.55rem;padding:1px 5px;border-radius:3px;font-weight:700;margin-left:auto;}
.badge-free{background:rgba(34,197,94,0.12);color:var(--tier-free);}
.badge-pro{background:rgba(59,130,246,0.12);color:var(--tier-pro);}
.badge-ultra{background:rgba(168,85,247,0.12);color:var(--tier-ultra);}

/* ===== MODAL ===== */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.6);z-index:200;align-items:center;justify-content:center;backdrop-filter:blur(8px);}
.modal-overlay.show{display:flex;}
.modal{background:rgba(18,18,30,0.95);backdrop-filter:blur(30px);border:1px solid var(--bd);border-radius:var(--r);padding:20px;width:90%;max-width:480px;max-height:80vh;overflow-y:auto;}
.modal h2{font-size:.95rem;margin-bottom:14px;display:flex;align-items:center;gap:6px;}
.modal .field{margin-bottom:12px;}
.modal .field label{display:block;font-size:.65rem;font-weight:700;color:var(--tx2);text-transform:uppercase;letter-spacing:.4px;margin-bottom:4px;}
.modal .field input{width:100%;padding:7px 10px;background:var(--bg3);border:1px solid var(--bd);border-radius:7px;color:var(--tx);font-size:.8rem;font-family:'Inter',monospace;}
.modal .field input:focus{outline:none;border-color:var(--pri);}
.modal .field .hint{font-size:.65rem;color:var(--tx3);margin-top:2px;}
.modal .field .status{font-size:.68rem;margin-top:2px;}
.modal .field .status.ok{color:var(--ok);}
.modal .field .status.warn{color:var(--warn);}
.modal-btns{display:flex;gap:6px;margin-top:14px;}

/* ===== TOAST ===== */
.toast-container{position:fixed;bottom:20px;right:20px;z-index:300;display:flex;flex-direction:column;gap:6px;pointer-events:none;}
.toast{padding:10px 16px;border-radius:10px;font-size:.8rem;font-weight:500;color:#fff;pointer-events:auto;animation:toastIn .3s ease;display:flex;align-items:center;gap:8px;box-shadow:0 4px 20px rgba(0,0,0,0.4);backdrop-filter:blur(16px);max-width:360px;}
.toast.success{background:rgba(34,197,94,0.9);}
.toast.error{background:rgba(239,68,68,0.9);}
.toast.info{background:rgba(99,102,241,0.9);}
.toast.out{animation:toastOut .3s ease forwards;}
@keyframes toastIn{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}
@keyframes toastOut{to{opacity:0;transform:translateX(40px)}}

/* ===== AI PANEL ===== */
.ai-side{display:none;width:280px;border-left:1px solid var(--bd);background:var(--bg2);flex-shrink:0;flex-direction:column;overflow:hidden;}
.ai-side.show{display:flex;}
.ai-side-header{padding:10px 12px;border-bottom:1px solid var(--bd);font-size:.8rem;font-weight:700;display:flex;align-items:center;gap:6px;}
.ai-side-body{flex:1;overflow-y:auto;padding:10px;}
.ai-msg{padding:8px 12px;background:var(--bg3);border-radius:10px;margin-bottom:6px;font-size:.78rem;line-height:1.5;}
.ai-msg.bot{border-left:3px solid var(--pri);}
.ai-msg.err{border:1px solid rgba(239,68,68,0.3);color:var(--err);}
.ai-side-input{display:flex;gap:6px;padding:8px 10px;border-top:1px solid var(--bd);}
.ai-side-input input{flex:1;padding:6px 10px;background:var(--bg3);border:1px solid var(--bd);border-radius:7px;color:var(--tx);font-size:.78rem;}
.ai-side-input input:focus{outline:none;border-color:var(--pri);}
.ai-side-input button{padding:6px 10px;border-radius:7px;border:none;background:var(--pri);color:#fff;font-size:.75rem;font-weight:600;cursor:pointer;}
.ai-issues{list-style:none;padding:0;}
.ai-issues li{padding:6px 10px;border-left:3px solid var(--warn);background:rgba(245,158,11,0.04);margin-bottom:4px;border-radius:0 7px 7px 0;font-size:.75rem;}
.ai-issues li.high{border-color:var(--err);}

/* ===== KEYBOARD SHORTCUTS ===== */
.kbd{display:inline-block;padding:1px 5px;border-radius:4px;background:var(--bg3);border:1px solid var(--bd);font-size:.68rem;font-family:monospace;color:var(--tx2);}

/* ===== SKELETON LOADING ===== */
.skeleton-overlay{position:fixed;inset:0;z-index:999;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;transition:opacity .5s;}
.skeleton-overlay.hidden{opacity:0;pointer-events:none;}
.skeleton-logo{font-size:2rem;font-weight:900;background:linear-gradient(135deg,var(--pri),var(--acc));-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:skPulse 1.5s ease-in-out infinite;}
.skeleton-bar{width:200px;height:3px;background:var(--bg3);border-radius:2px;overflow:hidden;}
.skeleton-bar::after{content:'';display:block;width:40%;height:100%;background:linear-gradient(90deg,transparent,var(--pri),transparent);animation:skSlide 1.2s ease infinite;}
@keyframes skPulse{0%,100%{opacity:.6}50%{opacity:1}}
@keyframes skSlide{0%{transform:translateX(-100%)}100%{transform:translateX(350%)}}

/* ===== TIER TOOLTIP ===== */
.tier-btn .tier-tip{display:none;position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%);background:rgba(18,18,30,0.95);border:1px solid var(--bd);border-radius:8px;padding:8px 12px;min-width:160px;z-index:200;box-shadow:0 4px 20px rgba(0,0,0,0.5);backdrop-filter:blur(16px);text-align:left;}
.tier-btn:hover .tier-tip{display:block;}
.tier-tip-title{font-size:.7rem;font-weight:800;margin-bottom:4px;color:var(--tx);}
.tier-tip-item{font-size:.62rem;color:var(--tx2);padding:1px 0;display:flex;align-items:center;gap:4px;}
.tier-tip-item::before{content:'✓';color:var(--ok);font-size:.55rem;}

/* ===== PERFORMANCE MONITOR ===== */
.perf-badge{display:flex;align-items:center;gap:4px;font-size:.6rem;color:var(--tx3);padding:2px 6px;border-radius:4px;background:var(--bg2);border:1px solid var(--bd);}
.perf-badge .p-dot{width:5px;height:5px;border-radius:50%;background:var(--ok);animation:pDot 2s infinite;}
@keyframes pDot{0%,100%{opacity:.4}50%{opacity:1}}

/* ===== MIC RECORDING ===== */
.mic-active{animation:micPulse 1s ease-in-out infinite;background:var(--err) !important;border-color:var(--err) !important;color:#fff !important;}
@keyframes micPulse{0%,100%{box-shadow:0 0 0 0 rgba(239,68,68,0.4)}50%{box-shadow:0 0 0 6px rgba(239,68,68,0)}}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .topbar{padding:6px 12px;gap:8px;}
  .topbar .back span{display:none;}
  .logo{font-size:.82rem;}
  .tier-bar{order:10;width:100%;justify-content:center;}
  .tier-btn{padding:4px 10px;font-size:.65rem;}
  .hero{padding:24px 16px;}
  .hero-title{font-size:1.4rem;}
  .hero-sub{font-size:.78rem;margin-bottom:16px;}
  .hero-steps{flex-direction:column;gap:8px;}
  .hero-step .arrow{display:none;}
  .upload-zone{padding:24px 16px;}
  .upload-zone .icon{font-size:2rem;}
  .ctrl-row{padding:8px 12px;flex-direction:column;align-items:stretch;gap:6px;}
  .ctrl-row .ctrl-spacer{display:none;}
  .ctrl-row .btn{width:100%;justify-content:center;}
  .stats{padding:6px 12px;}
  .stats .scard{min-width:65px;padding:6px 8px;}
  .scard .sv{font-size:.95rem;}
  .workspace{padding:0 8px;}
  .ws-tabs{overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;}
  .ws-tab{padding:5px 8px;font-size:.64rem;flex:none;white-space:nowrap;}
  .panel-header{padding:6px 10px;}
  .panel-body{padding:6px;}
  .transport{padding:4px 12px 6px;}
  .tr-controls{flex-wrap:wrap;gap:5px;}
  .tr-speed{display:none;}
  .tr-vol{display:none;}
  .tr-voice{display:none;}
  .ai-side{width:100%;position:fixed;bottom:0;left:0;right:0;height:50vh;z-index:150;border-left:none;border-top:1px solid var(--bd);border-radius:14px 14px 0 0;}
  .pipe-bar{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;}
  .pipe-step{font-size:.6rem;padding:3px 6px;}
}
@media(max-width:480px){
  .hero-title{font-size:1.1rem;}
  .topbar{gap:4px;}
  .tier-btn{padding:3px 8px;font-size:.6rem;}
  .scard{min-width:55px;}
  .ws-tab{font-size:.58rem;padding:4px 6px;}
}