:root{--studio-bg:#07090E;--studio-sidebar:#0B0E15;--studio-card:#10141E;--studio-card-hover:#151A27;--studio-card-active:#1A2131;--studio-input-bg:#0C0F17;--studio-border:rgba(255,255,255,0.07);--studio-border-hover:rgba(255,255,255,0.14);--studio-border-active:rgba(255,90,31,0.5);--studio-border-subtle:rgba(255,255,255,0.04);--studio-text:#F8FAFC;--studio-text-secondary:#94A3B8;--studio-text-muted:#64748B;--studio-text-faint:#475569;--studio-accent:#FF5A1F;--studio-accent-hover:#FF733B;--studio-accent-gradient:linear-gradient(135deg,#FF5A1F,#FF2E4D);--studio-accent-glow:rgba(255,90,31,0.28);--studio-accent-soft:rgba(255,90,31,0.12);--studio-player-bg:rgba(11,14,21,0.92);--studio-radius-sm:8px;--studio-radius-md:12px;--studio-radius-lg:16px;--studio-radius-xl:20px}.studio-root{min-height:100vh;background-color:var(--studio-bg);background-image:radial-gradient(1200px circle at 15% 0,rgba(255,90,31,.07),transparent 45%),radial-gradient(1000px circle at 85% 15%,rgba(139,92,246,.05),transparent 50%),radial-gradient(800px circle at 50% 100%,rgba(255,46,77,.04),transparent 50%);color:var(--studio-text);font-family:-apple-system,BlinkMacSystemFont,Inter,SF Pro Display,sans-serif;display:flex;flex-direction:column;position:relative;overflow-x:hidden;letter-spacing:-.01em}.studio-root ::-webkit-scrollbar{width:6px;height:6px}.studio-root ::-webkit-scrollbar-track{background:transparent}.studio-root ::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:99px}.studio-root ::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.22)}.studio-topbar{height:60px;background:rgba(11,14,21,.75);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--studio-border);justify-content:space-between;padding:0 24px;position:-webkit-sticky;position:sticky;top:0;z-index:50}.studio-brand,.studio-topbar{display:flex;align-items:center}.studio-brand{gap:12px;font-weight:750;font-size:16px;color:#fff;text-decoration:none;transition:opacity .15s}.studio-brand:hover{opacity:.9}.studio-brand-logo{width:32px;height:32px;border-radius:9px;background:var(--studio-accent-gradient);color:#fff;display:grid;place-items:center;font-weight:900;font-size:15px;box-shadow:0 4px 14px var(--studio-accent-glow)}.studio-brand-badge{background:rgba(255,255,255,.06);border:1px solid var(--studio-border);color:var(--studio-text-secondary);font-size:11px;font-weight:650;padding:3px 9px;border-radius:999px;display:inline-flex;align-items:center;gap:5px;letter-spacing:.03em}.pulse-dot{width:6px;height:6px;border-radius:50%;background:#10B981;box-shadow:0 0 8px #10B981;animation:pulseGreen 2s ease-in-out infinite}@keyframes pulseGreen{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.85)}}.studio-layout{display:flex;flex:1 1;min-height:calc(100vh - 60px - 76px);position:relative}.studio-sidebar{width:250px;background:var(--studio-sidebar);border-right:1px solid var(--studio-border);display:flex;flex-direction:column;flex-shrink:0;transition:transform .25s cubic-bezier(.16,1,.3,1);-webkit-user-select:none;-moz-user-select:none;user-select:none}@media (max-width:1024px){.studio-sidebar{position:fixed;top:60px;bottom:76px;left:0;z-index:45;transform:translateX(-100%);box-shadow:24px 0 60px rgba(0,0,0,.85)}.studio-sidebar.open{transform:translateX(0)}}.sidebar-nav{padding:16px 12px;display:flex;flex-direction:column;gap:4px;flex:1 1}.sidebar-label-title{font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--studio-text-muted);padding:10px 12px 6px}.sidebar-btn{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:var(--studio-radius-sm);font-size:13.5px;font-weight:550;color:var(--studio-text-secondary);background:transparent;border:1px solid transparent;cursor:pointer;transition:all .15s ease;width:100%;text-align:left;position:relative}.sidebar-btn:hover{color:#fff;background:rgba(255,255,255,.04)}.sidebar-btn.active{color:#fff;background:rgba(255,90,31,.12);border-color:rgba(255,90,31,.25);font-weight:650;box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}.sidebar-btn.active:before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;background:var(--studio-accent);border-radius:0 4px 4px 0;box-shadow:0 0 10px var(--studio-accent)}.sidebar-btn.active .sidebar-icon{color:var(--studio-accent)}.sidebar-badge{margin-left:auto;font-size:11px;font-weight:700;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);padding:1px 7px;border-radius:6px;color:var(--studio-text-secondary)}.user-credits-box{margin:14px 12px;padding:16px;background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,90,31,.06));border:1px solid var(--studio-border);border-radius:var(--studio-radius-md);box-shadow:0 4px 16px rgba(0,0,0,.3)}.credits-progress-track{width:100%;height:5px;background:rgba(255,255,255,.08);border-radius:99px;margin:10px 0;overflow:hidden}.credits-progress-bar{height:100%;background:var(--studio-accent-gradient);border-radius:99px;transition:width .4s ease;box-shadow:0 0 8px var(--studio-accent-glow)}.studio-main{flex:1 1;display:flex;flex-direction:column;min-width:0;overflow-y:auto;padding-bottom:90px}.studio-split{display:grid;grid-template-columns:440px 1fr;flex:1 1;min-height:100%}@media (max-width:1200px){.studio-split{grid-template-columns:1fr}}.studio-form-col{background:rgba(11,14,21,.6);border-right:1px solid var(--studio-border);padding:24px 26px;display:flex;flex-direction:column;gap:22px}.studio-feed-col,.studio-form-col{overflow-y:auto;max-height:calc(100vh - 60px - 76px)}.studio-feed-col{padding:26px 32px;background:transparent}.shadcn-tabs{display:flex;background:rgba(255,255,255,.03);padding:3px;border-radius:9px;border:1px solid var(--studio-border);box-shadow:inset 0 1px 2px rgba(0,0,0,.4)}.shadcn-tab-btn{flex:1 1;padding:7px 14px;font-size:13px;font-weight:600;border-radius:7px;border:none;background:transparent;color:var(--studio-text-secondary);cursor:pointer;transition:all .15s ease}.shadcn-tab-btn.active{background:#171D2B;color:#fff;border:1px solid rgba(255,255,255,.08);box-shadow:0 2px 8px rgba(0,0,0,.4)}.shadcn-label{font-size:12px;font-weight:650;text-transform:uppercase;letter-spacing:.05em;color:var(--studio-text-muted);display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.shadcn-textarea{width:100%;background:var(--studio-input-bg);border:1px solid var(--studio-border);border-radius:var(--studio-radius-md);padding:14px 16px;color:#fff;font-size:14px;line-height:1.6;resize:vertical;min-height:116px;outline:none;box-shadow:inset 0 2px 4px rgba(0,0,0,.2);transition:all .2s cubic-bezier(.16,1,.3,1)}.shadcn-textarea:focus{border-color:var(--studio-accent);box-shadow:0 0 0 1px var(--studio-accent),0 0 24px -4px var(--studio-accent-glow);background:#0E121C}.shadcn-input{width:100%;background:var(--studio-input-bg);border:1px solid var(--studio-border);border-radius:var(--studio-radius-sm);padding:10px 14px;color:#fff;font-size:13.5px;outline:none;box-shadow:inset 0 1px 3px rgba(0,0,0,.2);transition:all .18s ease}.shadcn-input:focus{border-color:var(--studio-accent);box-shadow:0 0 0 1px var(--studio-accent),0 0 16px -4px var(--studio-accent-glow)}.chip-group{display:flex;flex-wrap:wrap;gap:7px}.chip-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;font-size:12px;font-weight:550;background:rgba(255,255,255,.03);border:1px solid var(--studio-border);color:var(--studio-text-secondary);cursor:pointer;transition:all .15s ease;-webkit-user-select:none;-moz-user-select:none;user-select:none}.chip-btn:hover{background:rgba(255,255,255,.07);color:#fff;border-color:var(--studio-border-hover)}.chip-btn.selected{background:rgba(255,90,31,.14);border-color:var(--studio-accent);color:#fff;font-weight:650;box-shadow:0 0 14px rgba(255,90,31,.2)}.vocalist-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:8px;gap:8px}.vocalist-card{display:flex;align-items:center;gap:12px;padding:10px 12px;background:var(--studio-card);border:1px solid var(--studio-border);border-radius:var(--studio-radius-md);cursor:pointer;transition:all .18s cubic-bezier(.16,1,.3,1);text-align:left}.vocalist-card:hover{background:var(--studio-card-hover);border-color:var(--studio-border-hover);transform:translateY(-1px)}.vocalist-card.selected{border-color:var(--studio-accent);background:rgba(255,90,31,.1);box-shadow:0 4px 16px rgba(255,90,31,.15)}.vocalist-avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#1E293B,#334155);display:grid;place-items:center;font-weight:750;font-size:13px;color:#fff;flex-shrink:0;border:1.5px solid rgba(255,255,255,.1)}.vocalist-card.selected .vocalist-avatar{border-color:var(--studio-accent);box-shadow:0 0 10px var(--studio-accent-glow)}.btn-generate{width:100%;padding:14px 22px;background:var(--studio-accent-gradient);color:#fff;font-size:15px;font-weight:700;border:none;border-radius:var(--studio-radius-md);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;box-shadow:0 4px 24px rgba(255,90,31,.4),inset 0 1px 0 rgba(255,255,255,.3);transition:all .2s cubic-bezier(.16,1,.3,1);margin-top:6px;position:relative;overflow:hidden}.btn-generate:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 32px rgba(255,90,31,.55),inset 0 1px 0 rgba(255,255,255,.4)}.btn-generate:active:not(:disabled){transform:translateY(1px)}.btn-generate:disabled{opacity:.6;cursor:not-allowed;box-shadow:none}.generating-card{background:linear-gradient(145deg,rgba(255,90,31,.1),rgba(16,20,30,.8));border:1px solid rgba(255,90,31,.4);border-radius:var(--studio-radius-lg);padding:22px;margin-bottom:24px;position:relative;overflow:hidden;box-shadow:0 8px 32px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.08)}.generating-bar{height:6px;background:rgba(255,255,255,.08);border-radius:999px;margin:16px 0 10px;overflow:hidden}.generating-bar-fill{height:100%;background:var(--studio-accent-gradient);border-radius:999px;transition:width .35s ease;box-shadow:0 0 12px var(--studio-accent-glow)}.track-card{background:var(--studio-card);border:1px solid var(--studio-border);border-radius:var(--studio-radius-md);padding:14px 18px;margin-bottom:10px;display:flex;align-items:center;gap:16px;transition:all .18s cubic-bezier(.16,1,.3,1)}.track-card:hover{background:var(--studio-card-hover);border-color:var(--studio-border-hover);transform:translateY(-1px);box-shadow:0 4px 20px rgba(0,0,0,.3)}.track-card.playing{border-color:var(--studio-accent);background:rgba(255,90,31,.09);box-shadow:0 4px 24px rgba(255,90,31,.15)}.track-thumb{width:52px;height:52px;border-radius:10px;background:#182030;display:grid;place-items:center;flex-shrink:0;position:relative;overflow:hidden;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.4)}.track-thumb-overlay{position:absolute;inset:0;background:rgba(0,0,0,.45);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:grid;place-items:center;opacity:0;transition:opacity .15s ease}.track-thumb:hover .track-thumb-overlay{opacity:1}.track-info{flex:1 1;min-width:0}.track-title{font-size:14.5px;font-weight:650;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}.track-meta{font-size:12px;color:var(--studio-text-muted);gap:8px;flex-wrap:wrap}.studio-player-bar,.track-meta{display:flex;align-items:center}.studio-player-bar{position:fixed;bottom:0;left:0;right:0;height:76px;background:var(--studio-player-bg);border-top:1px solid var(--studio-border);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);justify-content:space-between;padding:0 28px;z-index:60;box-shadow:0 -4px 30px rgba(0,0,0,.6)}.player-left{gap:14px;width:280px;min-width:0}.player-center,.player-left{display:flex;align-items:center}.player-center{flex-direction:column;gap:6px;flex:1 1;max-width:620px}.player-right{display:flex;align-items:center;justify-content:flex-end;gap:16px;width:280px}.scrubber-track{width:100%;height:4px;background:rgba(255,255,255,.12);border-radius:999px;position:relative;cursor:pointer;transition:height .15s}.scrubber-track:hover{height:6px}.scrubber-fill{height:100%;background:var(--studio-accent);border-radius:999px;position:relative;box-shadow:0 0 10px var(--studio-accent-glow)}.eq-bars{display:flex;align-items:flex-end;gap:2.5px;height:16px}.eq-bar{width:3px;background:var(--studio-accent);border-radius:1px;animation:eqJump .75s ease-in-out infinite alternate}@keyframes eqJump{0%{height:3px}to{height:16px}}.lyrics-modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.75);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:70;display:grid;place-items:center;padding:20px}.lyrics-modal{background:#10141F;border:1px solid var(--studio-border);border-radius:var(--studio-radius-lg);width:100%;max-width:560px;max-height:82vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 30px 70px -12px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.08)}.lyrics-modal-header{padding:20px 24px;border-bottom:1px solid var(--studio-border);display:flex;align-items:center;justify-content:space-between}.lyrics-modal-body{padding:24px;overflow-y:auto;font-size:15px;line-height:1.8;white-space:pre-wrap;color:#E2E8F0;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}input[type=range]{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:rgba(255,255,255,.1);height:4px;border-radius:999px;outline:none;cursor:pointer;transition:background .15s ease}input[type=range]:hover{background:rgba(255,255,255,.18)}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:13px;height:13px;border-radius:50%;background:#ffffff;box-shadow:0 0 8px rgba(0,0,0,.5),0 0 0 2px var(--studio-accent);cursor:pointer;-webkit-transition:transform .15s ease,box-shadow .15s ease;transition:transform .15s ease,box-shadow .15s ease}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.25);box-shadow:0 0 14px var(--studio-accent-glow),0 0 0 3px var(--studio-accent)}input[type=range]::-moz-range-thumb{width:13px;height:13px;border-radius:50%;background:#ffffff;border:2px solid var(--studio-accent);box-shadow:0 0 8px rgba(0,0,0,.5);cursor:pointer;-moz-transition:transform .15s ease;transition:transform .15s ease}input[type=range]::-moz-range-thumb:hover{transform:scale(1.25)}.vinyl-disc{border-radius:50%;box-shadow:0 0 0 2px rgba(255,255,255,.12),0 4px 16px rgba(0,0,0,.7);position:relative;overflow:hidden;transition:transform .3s ease}.vinyl-spinning{animation:vinylRotate 10s linear infinite}@keyframes vinylRotate{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.studio-toast{position:fixed;top:74px;right:28px;background:rgba(16,20,31,.95);border:1px solid rgba(255,90,31,.45);box-shadow:0 16px 40px rgba(0,0,0,.8),0 0 24px var(--studio-accent-glow);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:var(--studio-radius-md);padding:12px 18px;color:#fff;font-size:13px;font-weight:650;display:flex;align-items:center;gap:10px;z-index:100;animation:toastSlideIn .28s cubic-bezier(.16,1,.3,1)}@keyframes toastSlideIn{0%{opacity:0;transform:translateY(-14px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.shimmer-badge{background:linear-gradient(90deg,rgba(255,90,31,.15),rgba(255,90,31,.3) 50%,rgba(255,90,31,.15));background-size:200% 100%;animation:shimmerAnim 3s linear infinite}@keyframes shimmerAnim{0%{background-position:-200% 0}to{background-position:200% 0}}