:root{--bg-primary: #0c1922;--bg-secondary: #132633;--bg-elevated: #1a3344;--bg-card: rgba(30, 61, 80, .4);--bg-overlay: rgba(12, 25, 34, .95);--accent-cyan: #5eead4;--accent-teal: #14b8a6;--accent-light: #99f6e4;--accent-deep: #0d9488;--text-primary: #f5fffe;--text-secondary: #a8e4f0;--text-muted: #6ba3b5;--text-inverse: var(--bg-primary);--color-error: #ff6b6b;--color-success: #4ade80;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-glow: 0 0 20px rgba(62, 224, 245, .4);--shadow-glow-strong: 0 0 30px rgba(62, 224, 245, .6);--bg-glow-primary: rgba(62, 224, 245, .1);--bg-glow-secondary: rgba(62, 224, 245, .15);--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--font-sans: "Outfit", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", monospace;--transition-fast: .15s ease;--transition-normal: .2s ease;--transition-slow: .3s ease;--z-dropdown: 50;--z-modal: 100;--z-toast: 150}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.5;min-height:100vh;overflow-x:hidden}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at 20% 0%,var(--bg-glow-primary) 0%,transparent 50%),radial-gradient(ellipse at 80% 100%,var(--bg-glow-secondary) 0%,transparent 50%);pointer-events:none;z-index:-1}h1,h2,h3,h4{font-weight:600;line-height:1.2}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}h4{font-size:1rem}.text-sm{font-size:.875rem}.text-xs{font-size:.75rem}.text-lg{font-size:1.125rem}.text-primary{color:var(--text-primary)}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.text-accent{color:var(--accent-cyan)}.text-error{color:var(--color-error)}.text-center{text-align:center}.text-mono{font-family:var(--font-mono)}.text-bold{font-weight:600}.text-medium{font-weight:500}.truncate{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}a{color:var(--accent-cyan);text-decoration:none;transition:opacity var(--transition-fast)}a:hover{opacity:.8}.flex{display:flex}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.flex-1{flex:1}.flex-shrink-0{flex-shrink:0}.items-center{align-items:center}.items-start{align-items:flex-start}.items-end{align-items:flex-end}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.justify-end{justify-content:flex-end}.gap-xs{gap:var(--space-xs)}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.gap-lg{gap:var(--space-lg)}.w-full{width:100%}.min-w-0{min-width:0}.p-xs{padding:var(--space-xs)}.p-sm{padding:var(--space-sm)}.p-md{padding:var(--space-md)}.p-lg{padding:var(--space-lg)}.p-xl{padding:var(--space-xl)}.px-sm{padding-left:var(--space-sm);padding-right:var(--space-sm)}.px-md{padding-left:var(--space-md);padding-right:var(--space-md)}.px-lg{padding-left:var(--space-lg);padding-right:var(--space-lg)}.py-sm{padding-top:var(--space-sm);padding-bottom:var(--space-sm)}.py-md{padding-top:var(--space-md);padding-bottom:var(--space-md)}.py-lg{padding-top:var(--space-lg);padding-bottom:var(--space-lg)}.mt-xs{margin-top:var(--space-xs)}.mt-sm{margin-top:var(--space-sm)}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mt-xl{margin-top:var(--space-xl)}.mt-2xl{margin-top:var(--space-2xl)}.mb-xs{margin-bottom:var(--space-xs)}.mb-sm{margin-bottom:var(--space-sm)}.mb-md{margin-bottom:var(--space-md)}.mb-lg{margin-bottom:var(--space-lg)}.mb-xl{margin-bottom:var(--space-xl)}.mb-2xl{margin-bottom:var(--space-2xl)}.container{width:100%;max-width:600px;margin:0 auto;padding:0 var(--space-md)}.card{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius-lg);padding:var(--space-lg)}.card-compact{padding:var(--space-md)}.card-interactive{transition:transform var(--transition-fast),box-shadow var(--transition-fast);cursor:pointer}.card-interactive:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);font-family:var(--font-sans);font-size:.9375rem;font-weight:500;border:none;border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-fast);text-decoration:none;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--accent-cyan) 0%,var(--accent-teal) 100%);color:var(--text-inverse);box-shadow:var(--shadow-glow)}.btn-primary:hover:not(:disabled){box-shadow:var(--shadow-glow-strong);transform:translateY(-1px)}.btn-secondary{background:var(--bg-elevated);color:var(--text-primary);border:1px solid rgba(255,255,255,.1)}.btn-secondary:hover:not(:disabled){background:var(--bg-card);border-color:#fff3}.btn-ghost{background:transparent;color:var(--text-secondary);padding:var(--space-sm)}.btn-ghost:hover:not(:disabled){color:var(--text-primary);background:#ffffff0d}.btn-danger{background:transparent;color:var(--text-muted)}.btn-danger:hover:not(:disabled){color:var(--color-error)}.btn-icon{width:44px;height:44px;padding:0;border-radius:var(--radius-md)}.btn-sm{padding:var(--space-xs) var(--space-sm);font-size:.875rem}.btn-lg{padding:var(--space-md) var(--space-xl);font-size:1rem}.btn-block{width:100%}.input{width:100%;padding:var(--space-md);font-family:var(--font-sans);font-size:1rem;color:var(--text-primary);background:var(--bg-elevated);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);outline:none;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input:focus{border-color:var(--accent-cyan);box-shadow:0 0 0 3px #3ee0f526}.input::placeholder{color:var(--text-muted)}.input:disabled{opacity:.5;cursor:not-allowed}.input-with-icon{padding-left:44px}.input-group{position:relative}.input-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-muted);pointer-events:none}.input-clear{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:none;border:none;padding:var(--space-sm);cursor:pointer;color:var(--text-muted)}.badge{display:inline-flex;align-items:center;padding:2px 8px;font-size:.75rem;font-weight:600;border-radius:var(--radius-sm)}.badge-accent{background:var(--accent-cyan);color:var(--text-inverse)}.badge-muted{background:var(--bg-elevated);color:var(--text-secondary)}.session-code{font-family:var(--font-mono);font-size:.875rem;letter-spacing:.1em;padding:4px 10px;background:var(--bg-elevated);border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition-fast)}.session-code:hover{background:var(--bg-card)}.session-code-lg{font-size:2rem;letter-spacing:.2em;padding:var(--space-md) var(--space-xl);border:2px solid var(--accent-cyan);text-shadow:0 0 20px rgba(62,224,245,.5);color:var(--accent-cyan)}.header{padding:var(--space-md) 0}.header-row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-sm);margin-bottom:var(--space-md)}.header-info{flex:1;min-width:0}.header-title{font-size:1.25rem;font-weight:600;margin-bottom:4px}.header-meta{display:flex;align-items:center;gap:var(--space-sm);flex-wrap:wrap}.header-actions{display:flex;align-items:center;gap:var(--space-xs);flex-shrink:0}.dropdown{position:relative}.dropdown-menu{position:absolute;top:100%;right:0;margin-top:var(--space-xs);min-width:180px;background:var(--bg-secondary);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);box-shadow:var(--shadow-md);z-index:var(--z-dropdown);overflow:hidden}.dropdown-item{display:flex;align-items:center;gap:var(--space-sm);width:100%;padding:var(--space-md);font-size:.9375rem;color:var(--text-secondary);background:none;border:none;cursor:pointer;transition:background var(--transition-fast),color var(--transition-fast);text-align:left}.dropdown-item:hover{background:var(--bg-elevated);color:var(--text-primary)}.dropdown-item-danger:hover{color:var(--color-error)}.dropdown-divider{height:1px;background:#ffffff1a;margin:var(--space-xs) 0}.dropdown-menu .theme-picker{background:#0003;border-top:1px solid rgba(255,255,255,.05)}.theme-picker{padding:var(--space-md)}.theme-picker-label{font-size:.6875rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:var(--space-sm)}.theme-picker-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.theme-swatch{width:28px;height:28px;border-radius:var(--radius-sm);background:var(--swatch-color);border:2px solid transparent;cursor:pointer;transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.theme-swatch:hover{transform:scale(1.1);box-shadow:0 0 12px var(--swatch-glow)}.theme-swatch-active{border-color:var(--text-primary);box-shadow:0 0 10px var(--swatch-glow)}.tabs{display:flex;gap:var(--space-xs);border-bottom:1px solid rgba(255,255,255,.1)}.tab{padding:var(--space-sm) var(--space-md);font-size:.9375rem;font-weight:500;color:var(--text-secondary);background:none;border:none;border-bottom:2px solid transparent;cursor:pointer;transition:color var(--transition-fast),border-color var(--transition-fast)}.tab:hover{color:var(--text-primary)}.tab-active{color:var(--accent-cyan);border-bottom-color:var(--accent-cyan)}.track-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);background:var(--bg-card);border:1px solid rgba(255,255,255,.04);border-radius:var(--radius-md)}.track-number{width:24px;text-align:center;font-size:.875rem;color:var(--text-muted);flex-shrink:0}.track-art{width:48px;height:48px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0}.track-info{flex:1;min-width:0}.track-title{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.track-artist{font-size:.875rem;color:var(--text-secondary)}.track-duration{font-size:.875rem;color:var(--text-muted);flex-shrink:0}.search-result{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md);background:var(--bg-card);border:1px solid rgba(255,255,255,.04);border-radius:var(--radius-md)}.search-result-art{width:56px;height:56px;border-radius:var(--radius-sm);object-fit:cover;flex-shrink:0}.search-result-info{flex:1;min-width:0}.search-result-title{font-weight:500;margin-bottom:2px}.search-result-meta{font-size:.875rem;color:var(--text-secondary)}.participant-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-md)}.participant-avatar{width:40px;height:40px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--accent-cyan) 0%,var(--accent-deep) 100%);display:flex;align-items:center;justify-content:center;font-weight:600;color:var(--text-inverse);flex-shrink:0}.participant-name{flex:1;font-weight:500}.bottom-bar{position:fixed;bottom:0;left:0;right:0;padding:var(--space-lg) var(--space-md) var(--space-md);background:linear-gradient(transparent,var(--bg-primary) 30%);z-index:var(--z-dropdown)}.bottom-bar-content{position:relative;display:flex;flex-direction:column;gap:var(--space-sm)}.bottom-bar-hint{display:flex;align-items:flex-start;gap:var(--space-xs);font-size:.75rem;color:var(--text-muted);text-align:left;margin:0}.bottom-bar-hint svg{flex-shrink:0;margin-top:2px}.btn-disabled{background:var(--bg-elevated);color:var(--text-muted);cursor:not-allowed;opacity:.6}.btn-disabled:hover{background:var(--bg-elevated);transform:none;box-shadow:none}.tooltip{position:absolute;background:var(--bg-secondary);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);padding:var(--space-sm) var(--space-md);font-size:.875rem;color:var(--text-secondary);max-width:280px;text-align:center;box-shadow:var(--shadow-md);z-index:10}.tooltip-above{bottom:calc(100% + var(--space-sm));left:50%;transform:translate(-50%)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:var(--space-md);z-index:var(--z-modal)}.modal{width:100%;max-width:400px;max-height:90vh;overflow-y:auto;background:var(--bg-secondary);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-xl);padding:var(--space-xl)}.session-info-box{background:var(--bg-elevated);border-radius:var(--radius-md);padding:var(--space-md);border-left:3px solid var(--accent-teal)}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-lg)}.modal-title{font-size:1.25rem;font-weight:600}.modal-close{background:none;border:none;padding:var(--space-sm);cursor:pointer;color:var(--text-muted);transition:color var(--transition-fast)}.modal-close:hover{color:var(--text-primary)}.page{min-height:100vh;display:flex;flex-direction:column}.page-centered{justify-content:center;align-items:center;text-align:center;padding:var(--space-xl) var(--space-md)}.page-content{flex:1;padding-bottom:100px}.empty-state{text-align:center;padding:var(--space-2xl) var(--space-md);color:var(--text-muted)}.empty-state-icon{font-size:3rem;margin-bottom:var(--space-md);opacity:.5}.empty-state-text{font-size:1.125rem;margin-bottom:var(--space-sm)}.empty-state-hint{font-size:.875rem}.spinner{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.skeleton{background:linear-gradient(90deg,var(--bg-elevated) 0%,var(--bg-card) 50%,var(--bg-elevated) 100%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-sm)}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes slide-up{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse-glow{0%,to{box-shadow:var(--shadow-glow)}50%{box-shadow:var(--shadow-glow-strong)}}.animate-fade-in{animation:fade-in .2s ease-out}.animate-slide-up{animation:slide-up .3s ease-out}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-elevated);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:#fff3}@media (max-width: 480px){:root{--space-md: .875rem;--space-lg: 1.25rem}h1{font-size:1.5rem}h2{font-size:1.25rem}.header-title{font-size:1.125rem}.track-art,.search-result-art{width:44px;height:44px}.btn{padding:var(--space-sm) var(--space-md)}.btn-lg{padding:var(--space-md) var(--space-lg)}.modal{padding:var(--space-lg)}.session-code-lg{font-size:1.5rem;padding:var(--space-sm) var(--space-lg)}}@media (max-width: 480px){.hide-mobile{display:none!important}}@media (min-width: 481px){.hide-desktop{display:none!important}}