:root{--color-primary-100: #e8faf0;--color-primary-200: #c2f5d9;--color-primary-300: #9cefc2;--color-primary-400: #4de294;--color-primary-500: #1ed760;--color-primary-600: #1db954;--color-primary-700: #169c46;--color-primary-800: #107d38;--color-primary-900: #0a5e2a;--color-neutral-0: #000000;--color-neutral-50: #0a0a0a;--color-neutral-100: #121212;--color-neutral-150: #181818;--color-neutral-200: #282828;--color-neutral-300: #3e3e3e;--color-neutral-400: #535353;--color-neutral-500: #b3b3b3;--color-neutral-600: #a7a7a7;--color-neutral-700: #8e8e8e;--color-neutral-800: #6a6a6a;--color-neutral-900: #ffffff;--color-success: #1ed760;--color-success-hover: #1db954;--color-warning: #ffa726;--color-warning-hover: #fb8c00;--color-error: #f15e6c;--color-error-hover: #e53935;--color-info: #29b6f6;--color-info-hover: #039be5;--space-0: 0;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--space-20: 80px;--space-24: 96px;--space-32: 128px;--space-xs: var(--space-1);--space-sm: var(--space-2);--space-md: var(--space-4);--space-lg: var(--space-6);--space-xl: var(--space-8);--space-2xl: var(--space-12);--space-3xl: var(--space-16);--font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;--font-family-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;--font-size-xs: 11px;--font-size-sm: 12px;--font-size-base: 14px;--font-size-md: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 28px;--font-size-4xl: 32px;--font-size-5xl: 40px;--font-size-6xl: 48px;--line-height-tight: 1.2;--line-height-snug: 1.3;--line-height-normal: 1.5;--line-height-relaxed: 1.6;--line-height-loose: 1.8;--font-weight-light: 300;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--font-weight-extrabold: 800;--font-weight-black: 900;--letter-spacing-tight: -.05em;--letter-spacing-normal: 0;--letter-spacing-wide: .025em;--letter-spacing-wider: .05em;--letter-spacing-widest: .1em;--radius-none: 0;--radius-sm: 4px;--radius-base: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 24px;--radius-full: 9999px;--radius: var(--radius-md);--border-width-0: 0;--border-width-1: 1px;--border-width-2: 2px;--border-width-4: 4px;--border-width-8: 8px;--shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px 0 rgba(0, 0, 0, .06);--shadow-base: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-md: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, .25);--shadow-2xl: 0 35px 60px -15px rgba(0, 0, 0, .3);--glow-primary: 0 0 20px rgba(30, 215, 96, .3);--glow-error: 0 0 20px rgba(241, 94, 108, .3);--glow-info: 0 0 20px rgba(41, 182, 246, .3);--duration-instant: .1s;--duration-fast: .15s;--duration-base: .2s;--duration-medium: .3s;--duration-slow: .4s;--duration-slower: .6s;--duration-slowest: 1s;--ease-linear: linear;--ease-in: cubic-bezier(.4, 0, 1, 1);--ease-out: cubic-bezier(0, 0, .2, 1);--ease-in-out: cubic-bezier(.4, 0, .2, 1);--ease-bounce: cubic-bezier(.68, -.55, .265, 1.55);--ease-smooth: cubic-bezier(.4, 0, .2, 1);--z-base: 0;--z-dropdown: 1000;--z-sticky: 1100;--z-fixed: 1200;--z-overlay: 1300;--z-modal: 1400;--z-popover: 1500;--z-toast: 1600;--z-tooltip: 1700;--z-max: 9999;--container-sm: 640px;--container-md: 768px;--container-lg: 1024px;--container-xl: 1280px;--container-2xl: 1536px;--height-header: 56px;--height-player-mini: 72px;--height-player-full: 100vh;--height-nav: 56px;--height-button-sm: 44px;--height-button-base: 44px;--height-button-lg: 52px;--safe-area-top: env(safe-area-inset-top, 0px);--safe-area-right: env(safe-area-inset-right, 0px);--safe-area-bottom: env(safe-area-inset-bottom, 0px);--safe-area-left: env(safe-area-inset-left, 0px);--opacity-0: 0;--opacity-5: .05;--opacity-10: .1;--opacity-20: .2;--opacity-30: .3;--opacity-40: .4;--opacity-50: .5;--opacity-60: .6;--opacity-70: .7;--opacity-80: .8;--opacity-90: .9;--opacity-100: 1;--blur-none: 0;--blur-sm: 4px;--blur-base: 8px;--blur-md: 12px;--blur-lg: 16px;--blur-xl: 24px;--blur-2xl: 40px;--blur-3xl: 64px;--breakpoint-sm: 640px;--breakpoint-md: 768px;--breakpoint-lg: 1024px;--breakpoint-xl: 1280px;--breakpoint-2xl: 1536px}@media(max-width:640px){:root{--font-size-base: 13px;--space-md: 12px;--space-lg: 16px}}@media(prefers-reduced-motion:reduce){:root{--duration-instant: 0ms;--duration-fast: 0ms;--duration-base: 0ms;--duration-medium: 0ms;--duration-slow: 0ms}}:root,[data-theme=dark]{--bg-base: var(--color-neutral-0);--bg-elevated: var(--color-neutral-100);--bg-surface: var(--color-neutral-150);--bg-card: var(--color-neutral-150);--bg-hover: var(--color-neutral-200);--bg-active: var(--color-neutral-300);--bg-overlay: rgba(0, 0, 0, .8);--bg: var(--bg-base);--text: var(--text-primary);--text-muted: var(--text-secondary);--accent-dark: var(--accent-hover);--danger: var(--error);--text-primary: var(--color-neutral-900);--text-secondary: var(--color-neutral-500);--text-tertiary: var(--color-neutral-600);--text-disabled: var(--color-neutral-700);--text-inverse: var(--color-neutral-0);--border-color: rgba(255, 255, 255, .05);--border-color-strong: rgba(255, 255, 255, .1);--border-color-hover: rgba(255, 255, 255, .15);--accent: var(--color-primary-500);--accent-hover: var(--color-primary-600);--accent-active: var(--color-primary-700);--accent-subtle: rgba(30, 215, 96, .1);--success: var(--color-success);--success-hover: var(--color-success-hover);--success-subtle: rgba(30, 215, 96, .1);--error: var(--color-error);--error-hover: var(--color-error-hover);--error-subtle: rgba(241, 94, 108, .1);--warning: var(--color-warning);--warning-hover: var(--color-warning-hover);--warning-subtle: rgba(255, 167, 38, .1);--info: var(--color-info);--info-hover: var(--color-info-hover);--info-subtle: rgba(41, 182, 246, .1);--shadow-color: rgba(0, 0, 0, .5);--gradient-primary: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-600) 100%);--gradient-hero: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-base) 100%);--gradient-overlay: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, .8) 100%)}[data-theme=light]{--bg-base: #ffffff;--bg-elevated: #f8f9fa;--bg-surface: #f1f3f5;--bg-card: #ffffff;--bg-hover: #e9ecef;--bg-active: #dee2e6;--bg-overlay: rgba(255, 255, 255, .95);--text-primary: var(--color-neutral-0);--text-secondary: var(--color-neutral-800);--text-tertiary: var(--color-neutral-700);--text-disabled: var(--color-neutral-600);--text-inverse: var(--color-neutral-900);--border-color: rgba(0, 0, 0, .08);--border-color-strong: rgba(0, 0, 0, .12);--border-color-hover: rgba(0, 0, 0, .16);--accent: var(--color-primary-600);--accent-hover: var(--color-primary-700);--accent-active: var(--color-primary-800);--accent-subtle: rgba(30, 215, 96, .08);--success: var(--color-primary-600);--success-hover: var(--color-primary-700);--success-subtle: rgba(30, 215, 96, .08);--error: var(--color-error);--error-hover: var(--color-error-hover);--error-subtle: rgba(241, 94, 108, .08);--warning: var(--color-warning);--warning-hover: var(--color-warning-hover);--warning-subtle: rgba(255, 167, 38, .08);--info: var(--color-info);--info-hover: var(--color-info-hover);--info-subtle: rgba(41, 182, 246, .08);--shadow-color: rgba(0, 0, 0, .1);--gradient-primary: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-700) 100%);--gradient-hero: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);--gradient-overlay: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 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0 1px rgba(255, 255, 255, .05);--shadow-xl: 0 0 0 1px rgba(255, 255, 255, .08);--gradient-primary: linear-gradient(135deg, #00ff88 0%, #00cc6b 100%);--gradient-hero: linear-gradient(180deg, #0a0a0a 0%, #000000 100%);--gradient-overlay: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 1) 100%)}[data-theme=custom]{--custom-accent: var(--accent, #1ed760);--custom-bg: var(--bg-base, #000000);--custom-text: var(--text-primary, #ffffff);--accent: var(--custom-accent);--accent-hover: color-mix(in srgb, var(--custom-accent) 85%, black);--accent-active: color-mix(in srgb, var(--custom-accent) 70%, black);--accent-subtle: color-mix(in srgb, var(--custom-accent) 10%, transparent);--bg-base: var(--custom-bg);--text-primary: var(--custom-text)}@media(prefers-contrast:high){:root{--border-color: rgba(255, 255, 255, .2);--border-color-strong: rgba(255, 255, 255, .3);--text-secondary: var(--color-neutral-500)}[data-theme=light]{--border-color: rgba(0, 0, 0, .2);--border-color-strong: rgba(0, 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var(--spacing-8))}.modal--fade{transform:none}.modal--scale{transform:scale(.9)}.modal--scale.modal--visible{transform:scale(1)}.modal--slide-up{transform:translateY(20px)}.modal--slide-up.modal--visible{transform:translateY(0)}.modal--slide-down{transform:translateY(-20px)}.modal--slide-down.modal--visible{transform:translateY(0)}.modal__header{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-4);padding:var(--spacing-6) var(--spacing-6) var(--spacing-5);border-bottom:1px solid var(--border-color);flex-shrink:0}.modal__title{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--text-primary);margin:0;line-height:1.3}.modal__close{display:flex;align-items:center;justify-content:center;width:32px;height:32px;padding:0;background:none;border:none;border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);flex-shrink:0}.modal__close:hover{background-color:var(--bg-hover);color:var(--text-primary)}.modal__close:active{transform:scale(.95)}.modal__body{flex:1;overflow-y:auto;padding:var(--spacing-6) var(--spacing-6) var(--spacing-5);color:var(--text-secondary);line-height:1.6}.modal__body::-webkit-scrollbar{width:8px}.modal__body::-webkit-scrollbar-track{background:transparent}.modal__body::-webkit-scrollbar-thumb{background:var(--bg-hover);border-radius:var(--radius-sm)}.modal__body::-webkit-scrollbar-thumb:hover{background:var(--bg-active)}.modal__footer{display:flex;align-items:center;justify-content:flex-end;gap:var(--spacing-3);padding:var(--spacing-5) var(--spacing-6) var(--spacing-6);border-top:1px solid var(--border-color);flex-shrink:0}.modal--no-padding .modal__body{padding:0}.modal--centered-content .modal__body{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.modal--confirm .modal__body{padding:var(--spacing-8) var(--spacing-6);text-align:center}.modal--confirm .modal__footer{justify-content:center}.modal--alert{border-color:var(--color-danger-600)}.modal--alert .modal__header{background:linear-gradient(135deg,rgba(var(--color-danger-600-rgb),.1) 0%,transparent 100%);border-bottom-color:var(--color-danger-700)}.modal--success{border-color:var(--color-success-600)}.modal--success .modal__header{background:linear-gradient(135deg,rgba(var(--color-success-600-rgb),.1) 0%,transparent 100%);border-bottom-color:var(--color-success-700)}@media(max-width:640px){.modal-backdrop{padding:var(--spacing-2);align-items:flex-end}.modal{max-height:85vh;border-radius:var(--radius-xl) var(--radius-xl) 0 0}.modal--sm,.modal--base,.modal--lg{width:100%;max-width:none}.modal--full{width:100%;height:calc(100vh - var(--spacing-4));max-height:calc(100vh - var(--spacing-4));border-radius:var(--radius-lg)}.modal__header,.modal__body,.modal__footer{padding:var(--spacing-4)}.modal__title{font-size:var(--font-size-lg)}.modal--slide-up{transform:translateY(100%)}.modal--slide-up.modal--visible{transform:translateY(0)}}.modal--loading{pointer-events:none}.modal--loading .modal__body{display:flex;align-items:center;justify-content:center;min-height:200px}.modal-backdrop+.modal-backdrop{z-index:calc(var(--z-modal) + 10)}.modal:focus{outline:none}.modal__close:focus-visible{outline:2px solid var(--color-primary-500);outline-offset:2px}@media(prefers-reduced-motion:reduce){.modal-backdrop,.modal{transition:opacity var(--transition-fast)}.modal--scale,.modal--slide-up,.modal--slide-down{transform:none!important}}@supports (padding: env(safe-area-inset-bottom)){@media(max-width:640px){.modal__footer{padding-bottom:calc(var(--spacing-4) + env(safe-area-inset-bottom))}}}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--spacing-8);min-height:300px}.empty-state__icon{display:flex;align-items:center;justify-content:center;width:80px;height:80px;margin-bottom:var(--spacing-4);border-radius:var(--radius-full);background:var(--color-bg-tertiary);color:var(--color-text-tertiary);transition:var(--transition-base)}.empty-state:hover .empty-state__icon{background:var(--color-bg-secondary);color:var(--color-text-secondary)}.empty-state__content{max-width:400px}.empty-state__title{margin:0 0 var(--spacing-2) 0;font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);line-height:var(--line-height-tight)}.empty-state__description{margin:0 0 var(--spacing-4) 0;font-size:var(--font-size-base);color:var(--color-text-secondary);line-height:var(--line-height-relaxed)}.empty-state__action{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-3) var(--spacing-5);border:none;border-radius:var(--radius-lg);background:var(--color-primary);color:#fff;font-size:var(--font-size-base);font-weight:var(--font-weight-medium);cursor:pointer;transition:var(--transition-base);box-shadow:var(--shadow-sm)}.empty-state__action:hover{background:var(--color-primary-hover);box-shadow:var(--shadow-md);transform:translateY(-1px)}.empty-state__action:active{transform:translateY(0);box-shadow:var(--shadow-sm)}.empty-state__action:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.empty-state--sm{min-height:200px;padding:var(--spacing-6)}.empty-state--sm .empty-state__icon{width:60px;height:60px;margin-bottom:var(--spacing-3)}.empty-state--sm .empty-state__content{max-width:320px}.empty-state--sm .empty-state__title{font-size:var(--font-size-lg);margin-bottom:var(--spacing-1)}.empty-state--sm .empty-state__description{font-size:var(--font-size-sm);margin-bottom:var(--spacing-3)}.empty-state--sm .empty-state__action{padding:var(--spacing-2) var(--spacing-4);font-size:var(--font-size-sm)}.empty-state--lg{min-height:400px;padding:var(--spacing-10)}.empty-state--lg .empty-state__icon{width:120px;height:120px;margin-bottom:var(--spacing-6)}.empty-state--lg .empty-state__content{max-width:500px}.empty-state--lg .empty-state__title{font-size:var(--font-size-2xl);margin-bottom:var(--spacing-3)}.empty-state--lg .empty-state__description{font-size:var(--font-size-lg);margin-bottom:var(--spacing-5)}.empty-state--lg .empty-state__action{padding:var(--spacing-4) var(--spacing-6);font-size:var(--font-size-lg)}@keyframes emptyStateFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.empty-state__icon{animation:emptyStateFloat 3s ease-in-out infinite}.empty-state:hover .empty-state__icon{animation-play-state:paused}@media(max-width:640px){.empty-state{min-height:250px;padding:var(--spacing-6)}.empty-state__icon{width:64px;height:64px;margin-bottom:var(--spacing-3)}.empty-state__content{max-width:100%}.empty-state__title{font-size:var(--font-size-lg)}.empty-state__description{font-size:var(--font-size-sm)}.empty-state__action{width:100%;max-width:280px}.empty-state--lg{min-height:300px;padding:var(--spacing-8)}.empty-state--lg .empty-state__icon{width:80px;height:80px}.empty-state--lg .empty-state__title{font-size:var(--font-size-xl)}.empty-state--lg .empty-state__description{font-size:var(--font-size-base)}}@media(prefers-color-scheme:dark){.empty-state__icon{background:#ffffff0d}.empty-state:hover .empty-state__icon{background:#ffffff14}.empty-state__action{box-shadow:var(--shadow-md)}.empty-state__action:hover{box-shadow:var(--shadow-lg)}}@media print{.empty-state{min-height:auto;padding:var(--spacing-4)}.empty-state__icon{animation:none;display:none}.empty-state__action{display:none}}.error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--spacing-8);min-height:300px}.error-state__icon{display:flex;align-items:center;justify-content:center;width:80px;height:80px;margin-bottom:var(--spacing-4);border-radius:var(--radius-full);transition:var(--transition-base)}.error-state--error .error-state__icon{background:var(--color-danger-muted);color:var(--color-danger)}.error-state--warning .error-state__icon{background:var(--color-warning-muted);color:var(--color-warning)}.error-state--offline .error-state__icon{background:var(--color-bg-tertiary);color:var(--color-text-tertiary)}.error-state__content{max-width:400px}.error-state__title{margin:0 0 var(--spacing-2) 0;font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight)}.error-state--error .error-state__title{color:var(--color-danger)}.error-state--warning .error-state__title{color:var(--color-warning)}.error-state--offline .error-state__title{color:var(--color-text-primary)}.error-state__message{margin:0 0 var(--spacing-4) 0;font-size:var(--font-size-base);color:var(--color-text-secondary);line-height:var(--line-height-relaxed)}.error-state__actions{display:flex;gap:var(--spacing-3);justify-content:center;margin-top:var(--spacing-5)}.error-state__action{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-3) var(--spacing-5);border:none;border-radius:var(--radius-lg);font-size:var(--font-size-base);font-weight:var(--font-weight-medium);cursor:pointer;transition:var(--transition-base)}.error-state__action--primary{background:var(--color-primary);color:#fff;box-shadow:var(--shadow-sm)}.error-state__action--primary:hover{background:var(--color-primary-hover);box-shadow:var(--shadow-md);transform:translateY(-1px)}.error-state__action--primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}.error-state__action--primary:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.error-state__action--secondary{background:var(--color-bg-secondary);color:var(--color-text-primary);border:1px solid var(--color-border)}.error-state__action--secondary:hover{background:var(--color-bg-tertiary);border-color:var(--color-border-hover)}.error-state__action--secondary:active{background:var(--color-bg-secondary)}.error-state__action--secondary:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.error-state--sm{min-height:200px;padding:var(--spacing-6)}.error-state--sm .error-state__icon{width:60px;height:60px;margin-bottom:var(--spacing-3)}.error-state--sm .error-state__content{max-width:320px}.error-state--sm .error-state__title{font-size:var(--font-size-lg);margin-bottom:var(--spacing-1)}.error-state--sm .error-state__message{font-size:var(--font-size-sm);margin-bottom:var(--spacing-3)}.error-state--sm .error-state__action{padding:var(--spacing-2) var(--spacing-4);font-size:var(--font-size-sm)}.error-state--lg{min-height:400px;padding:var(--spacing-10)}.error-state--lg .error-state__icon{width:120px;height:120px;margin-bottom:var(--spacing-6)}.error-state--lg .error-state__content{max-width:500px}.error-state--lg .error-state__title{font-size:var(--font-size-2xl);margin-bottom:var(--spacing-3)}.error-state--lg .error-state__message{font-size:var(--font-size-lg);margin-bottom:var(--spacing-5)}.error-state--lg .error-state__action{padding:var(--spacing-4) var(--spacing-6);font-size:var(--font-size-lg)}@keyframes errorShake{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}@keyframes errorPulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.error-state--error .error-state__icon{animation:errorShake .5s ease-in-out}.error-state--warning .error-state__icon{animation:errorPulse 2s ease-in-out infinite}@media(max-width:640px){.error-state{min-height:250px;padding:var(--spacing-6)}.error-state__icon{width:64px;height:64px;margin-bottom:var(--spacing-3)}.error-state__content{max-width:100%}.error-state__title{font-size:var(--font-size-lg)}.error-state__message{font-size:var(--font-size-sm)}.error-state__actions{flex-direction:column;width:100%;gap:var(--spacing-2)}.error-state__action{width:100%;max-width:280px}.error-state--lg{min-height:300px;padding:var(--spacing-8)}.error-state--lg .error-state__icon{width:80px;height:80px}.error-state--lg .error-state__title{font-size:var(--font-size-xl)}.error-state--lg .error-state__message{font-size:var(--font-size-base)}}@media(prefers-color-scheme:dark){.error-state--error .error-state__icon{background:#ef44441a}.error-state--warning .error-state__icon{background:#f59e0b1a}.error-state--offline .error-state__icon{background:#ffffff0d}.error-state__action--primary{box-shadow:var(--shadow-md)}.error-state__action--primary:hover{box-shadow:var(--shadow-lg)}.error-state__action--secondary{background:#ffffff0d}.error-state__action--secondary:hover{background:#ffffff14}}@media(prefers-reduced-motion:reduce){.error-state__icon{animation:none}.error-state__action{transition:none}}@media print{.error-state{min-height:auto;padding:var(--spacing-4)}.error-state__icon{animation:none;width:48px;height:48px}.error-state__actions{display:none}}.progress-bar{display:flex;align-items:center;gap:var(--spacing-3);width:100%;-webkit-user-select:none;user-select:none}.progress-bar__time{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);font-variant-numeric:tabular-nums;min-width:40px;text-align:center}.progress-bar__time--current{text-align:right}.progress-bar__time--duration{text-align:left}.progress-bar__container{flex:1;position:relative}.progress-bar__track{position:relative;width:100%;height:4px;background:var(--color-bg-tertiary);border-radius:var(--radius-full);overflow:visible;cursor:pointer;transition:height var(--transition-fast)}.progress-bar--seekable .progress-bar__track:hover{height:6px}.progress-bar__fill{position:absolute;top:0;left:0;height:100%;background:var(--color-primary);border-radius:var(--radius-full);transition:width .1s linear;pointer-events:none}.progress-bar__track:hover .progress-bar__fill{background:var(--color-primary-hover)}.progress-bar__handle{position:absolute;top:50%;right:-6px;width:12px;height:12px;background:#fff;border-radius:var(--radius-full);transform:translateY(-50%) scale(0);transition:transform var(--transition-fast);box-shadow:var(--shadow-md)}.progress-bar--seekable .progress-bar__track:hover .progress-bar__handle{transform:translateY(-50%) scale(1)}.progress-bar__tooltip{position:absolute;bottom:100%;left:0;transform:translate(-50%) translateY(-8px);padding:var(--spacing-1) var(--spacing-2);background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);color:var(--color-text-primary);white-space:nowrap;pointer-events:none;opacity:0;transition:opacity var(--transition-fast);box-shadow:var(--shadow-lg);font-variant-numeric:tabular-nums}.progress-bar__tooltip--visible{opacity:1}.progress-bar__tooltip:after{content:"";position:absolute;top:100%;left:50%;transform:translate(-50%);width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:4px solid var(--color-bg-elevated)}.progress-bar--sm .progress-bar__track{height:3px}.progress-bar--sm.progress-bar--seekable .progress-bar__track:hover{height:4px}.progress-bar--sm .progress-bar__handle{width:10px;height:10px;right:-5px}.progress-bar--sm .progress-bar__time{font-size:var(--font-size-2xs);min-width:35px}.progress-bar--lg .progress-bar__track{height:6px}.progress-bar--lg.progress-bar--seekable .progress-bar__track:hover{height:8px}.progress-bar--lg .progress-bar__handle{width:16px;height:16px;right:-8px}.progress-bar--lg .progress-bar__time{font-size:var(--font-size-sm);min-width:48px}.progress-bar--disabled{opacity:.5;pointer-events:none}.progress-bar--loading .progress-bar__fill{background:linear-gradient(90deg,var(--color-primary) 0%,var(--color-primary-hover) 50%,var(--color-primary) 100%);background-size:200% 100%;animation:progressLoading 1.5s ease-in-out infinite}@keyframes progressLoading{0%{background-position:200% 0}to{background-position:-200% 0}}@media(pointer:coarse){.progress-bar__track{height:6px;padding:var(--spacing-2) 0;margin:calc(var(--spacing-2) * -1) 0}.progress-bar__handle{transform:translateY(-50%) scale(1)}.progress-bar__tooltip{display:none}}@media(max-width:640px){.progress-bar__time{font-size:var(--font-size-2xs);min-width:32px}.progress-bar--lg .progress-bar__time{font-size:var(--font-size-xs);min-width:40px}}@media(prefers-color-scheme:dark){.progress-bar__track{background:#ffffff1a}.progress-bar__tooltip{background:#282828fa;border-color:#ffffff1a}.progress-bar__tooltip:after{border-top-color:#282828fa}}.progress-bar__track:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}@media(prefers-reduced-motion:reduce){.progress-bar__track,.progress-bar__fill,.progress-bar__handle,.progress-bar__tooltip{transition:none}.progress-bar--loading .progress-bar__fill{animation:none;background:var(--color-primary)}}@media print{.progress-bar__handle,.progress-bar__tooltip{display:none}.progress-bar__track{height:2px}}.player-controls{display:flex;align-items:center;justify-content:center;gap:var(--space-2)}.player-controls--compact{gap:var(--space-3)}.player-controls--full{gap:var(--space-4)}.player-controls__previous,.player-controls__next,.player-controls__shuffle,.player-controls__repeat{display:flex;align-items:center;justify-content:center}.player-controls__play{display:flex;align-items:center;justify-content:center;position:relative}.player-controls__play button{box-shadow:var(--shadow-md)}.player-controls__play button:hover{box-shadow:var(--shadow-lg);transform:scale(1.05)}.player-controls__play button:active{transform:scale(.98)}.player-controls button{min-width:44px;min-height:44px}.player-controls--lg button{min-width:56px;min-height:56px;font-size:24px}.player-controls--lg .btn-icon svg{width:24px;height:24px}.player-controls .btn-icon svg{width:20px;height:20px}.player-controls--sm{gap:var(--space-2)}.player-controls--sm.player-controls--full,.player-controls--base{gap:var(--space-3)}.player-controls--base.player-controls--full{gap:var(--space-4)}.player-controls--lg{gap:var(--space-5)}.player-controls--lg.player-controls--full{gap:var(--space-6)}.player-controls__shuffle button,.player-controls__repeat button{opacity:.7;transition:opacity var(--duration-base),transform var(--duration-base)}.player-controls__shuffle button:hover,.player-controls__repeat button:hover{opacity:1;transform:scale(1.1)}.player-controls__shuffle button[aria-pressed=true],.player-controls__repeat button[aria-pressed=true]{opacity:1}.player-controls--loading .player-controls__play button{position:relative;overflow:hidden}.player-controls--loading .player-controls__play button:after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.2) 50%,transparent 100%);animation:loadingShine 1.5s ease-in-out infinite}@keyframes loadingShine{0%{left:-100%}to{left:100%}}.player-controls__play svg{transition:transform .2s cubic-bezier(.4,0,.2,1)}.player-controls__play button:active svg{transform:scale(.9)}@keyframes skipPulse{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}.player-controls__previous button:active svg,.player-controls__next button:active svg{animation:skipPulse .3s ease-out}@keyframes toggleBounce{0%,to{transform:scale(1)}50%{transform:scale(1.15)}}.player-controls__shuffle button:active,.player-controls__repeat button:active{animation:toggleBounce .3s ease-out}@media(max-width:640px){.player-controls--full{gap:var(--space-3)}.player-controls--lg.player-controls--full{gap:var(--space-4)}@media(max-width:360px){.player-controls--compact .player-controls__shuffle,.player-controls--compact .player-controls__repeat{display:none}}}@media(pointer:coarse){.player-controls button{min-width:44px;min-height:44px}.player-controls--full{gap:var(--space-4)}}@media(prefers-color-scheme:dark){.player-controls__play button{box-shadow:0 4px 12px #0000004d}.player-controls__play button:hover{box-shadow:0 6px 16px #0006}}.player-controls button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media(prefers-reduced-motion:reduce){.player-controls button,.player-controls svg{transition:none;animation:none}.player-controls__play button:hover,.player-controls__play button:active{transform:none}.player-controls--loading .player-controls__play button:after{animation:none}}@media(prefers-contrast:high){.player-controls button{border:2px solid currentColor}.player-controls__shuffle button,.player-controls__repeat button{opacity:1}}@media print{.player-controls{display:none}}.waveform{position:relative;width:100%;min-height:60px;overflow:hidden;border-radius:var(--radius-lg);background:var(--color-bg-secondary)}.waveform__canvas{display:block;width:100%;height:100%;cursor:default}.waveform--seekable .waveform__canvas{cursor:pointer}.waveform--line{background:linear-gradient(to bottom,transparent 0%,var(--color-bg-tertiary) 50%,transparent 100%)}.waveform--mirror{background:linear-gradient(to bottom,var(--color-bg-tertiary) 0%,var(--color-bg-secondary) 50%,var(--color-bg-tertiary) 100%)}.waveform--gradient{background:linear-gradient(90deg,rgba(var(--color-primary-rgb),.1),rgba(var(--color-accent-rgb),.1))}.waveform--dynamic{background:linear-gradient(to bottom,#00ff000d,#ffff000d,#ff00000d)}.waveform--seekable:hover{background:var(--color-bg-tertiary)}.waveform--seekable:active{background:var(--color-bg-elevated)}.waveform__progress{position:absolute;top:0;left:0;width:2px;height:100%;background:var(--color-primary);pointer-events:none;transition:left .1s linear;box-shadow:0 0 8px var(--color-primary)}.waveform--loading{position:relative;overflow:hidden}.waveform--loading:after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.1) 50%,transparent 100%);animation:waveformLoading 1.5s ease-in-out infinite}@keyframes waveformLoading{0%{left:-100%}to{left:100%}}@media(max-width:640px){.waveform{min-height:50px}}@media(pointer:coarse){.waveform{min-height:70px}.waveform--seekable{padding:var(--spacing-2) 0}}@media(prefers-color-scheme:dark){.waveform{background:#ffffff08}.waveform--line{background:linear-gradient(to bottom,transparent 0%,rgba(255,255,255,.05) 50%,transparent 100%)}.waveform--seekable:hover{background:#ffffff0d}.waveform--seekable:active{background:#ffffff14}}.waveform--seekable:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}@media(prefers-reduced-motion:reduce){.waveform__progress{transition:none}.waveform--loading:after{animation:none}}.waveform__canvas{will-change:transform;transform:translateZ(0)}@media print{.waveform{display:none}}.mini-player{position:fixed;bottom:var(--nav-h, 56px);left:0;right:0;z-index:40;background:var(--bg-card);border-top:1px solid rgba(255,255,255,.1);box-shadow:var(--shadow-lg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}.mini-player__progress{width:100%;padding:var(--space-2) var(--space-4) 0}.mini-player__progress .progress-bar{gap:var(--space-2);align-items:center}.mini-player__progress 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rgba(255,255,255,.1)}.fullscreen-player__volume-label{font-size:14px;color:#fffc;font-weight:600}.fullscreen-player__volume-value{font-size:14px;font-weight:700;color:#fff;min-width:48px;text-align:right}.fullscreen-player__volume-slider{flex:1;-webkit-appearance:none;appearance:none;height:4px;border-radius:2px;background:#fff3;outline:none;position:relative}.fullscreen-player__volume-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:#fff;cursor:pointer;box-shadow:0 2px 8px #0006}.fullscreen-player__volume-slider::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:#fff;cursor:pointer;border:none;box-shadow:0 2px 8px #0006}.fullscreen-player__progress{margin-bottom:var(--space-4)}.fullscreen-player__progress .progress-bar{height:6px}.fullscreen-player__progress .progress-bar__time{color:#fffc;font-weight:500}.fullscreen-player__progress .progress-bar__track{background:#fff3}.fullscreen-player__progress .progress-bar__fill{background:var(--accent);box-shadow:0 0 12px #1ed76080}.fullscreen-player__progress .progress-bar__thumb{background:#fff;box-shadow:0 2px 8px #0000004d;transform:scale(1);transition:transform .2s}.fullscreen-player__progress .progress-bar:hover .progress-bar__thumb{transform:scale(1.2)}.fullscreen-player__controls{margin-bottom:var(--space-2)}.fullscreen-player__controls button{color:#fff}.fullscreen-player--loading .fullscreen-player__artwork{animation:artworkFloat 6s ease-in-out infinite,pulse 1.5s ease-in-out infinite}@media(max-width:640px){.fullscreen-player__artwork-container{max-width:300px}.fullscreen-player__artwork:empty:before{font-size:80px}.fullscreen-player__title{font-size:var(--font-size-xl)}.fullscreen-player__artist{font-size:var(--font-size-base)}}@media(max-height:600px)and (orientation:landscape){.fullscreen-player__main{flex-direction:row;justify-content:space-around;padding:var(--space-4)}.fullscreen-player__artwork-container{max-width:200px;margin-bottom:0;margin-right:var(--space-6)}.fullscreen-player__track-info{margin-bottom:0;text-align:left}}@media(min-width:768px){.fullscreen-player__background{filter:blur(80px)}.fullscreen-player__artwork-container{max-width:480px}.fullscreen-player__title{font-size:var(--font-size-3xl)}.fullscreen-player__artist{font-size:var(--font-size-xl)}.fullscreen-player__album{font-size:var(--font-size-base)}.fullscreen-player__controls-section{max-width:700px}}@media(prefers-color-scheme:dark){.fullscreen-player__background{opacity:.4}.fullscreen-player__background:after{background:linear-gradient(to bottom,#000000e6,#000000b3,#000000f2)}}@media(prefers-reduced-motion:reduce){.fullscreen-player__artwork{animation:none}.fullscreen-player__background{transition:none}}@media print{.fullscreen-player{display:none}}*{box-sizing:border-box;margin:0;padding:0}:root{--header-h: 56px;--player-h: 72px;--nav-h: 56px;--safe-bottom: env(safe-area-inset-bottom, 0px)}html,body,#app{height:100%;overflow:hidden}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}*:focus{outline:none}*:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:var(--radius)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,[role=button]:focus-visible,[tabindex]:not([tabindex="-1"]):focus-visible{outline:2px solid var(--accent);outline-offset:2px}.track-card:focus-visible,.nav-item:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.app{display:grid;grid-template-rows:var(--header-h) 1fr auto auto;grid-template-areas:"header" "content" "player" 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.track-thumbnail{width:56px;height:56px}.meta{flex:1;min-width:0}.title{font-weight:700;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}.artist{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.controls-buttons{display:flex;align-items:center;gap:var(--space-sm)}.player-controls{display:flex;align-items:center;gap:var(--space-sm);flex-shrink:0}.player-controls .btn{width:40px;height:40px;border-radius:50%;border:none;background:none;color:var(--text);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;font-size:18px}.player-controls .btn-play{background:var(--text);color:var(--bg);width:40px;height:40px}.player-controls .btn-play:active{transform:scale(.95)}.volume-control{display:none}.bottom-nav{grid-area:nav;display:flex;background:var(--bg-elevated);border-top:1px solid 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#1ed76066;transform:translateY(-1px)}.btn--primary:active{transform:translateY(0);box-shadow:0 2px 6px #1ed7604d}@media(max-width:768px){.history-section-content{max-height:0;opacity:0}.history-section-content:not(.history-section-content--collapsed){max-height:2000px;opacity:1}.history-section-icon{transform:rotate(180deg);transition:transform .3s ease}.history-section-content:not(.history-section-content--collapsed)+.history-section-header .history-section-icon{transform:rotate(0)}.upnext-item{grid-template-columns:32px 1fr}.upnext-number{width:32px;height:32px;font-size:11px}.upnext-actions{grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.upnext-action-btn{min-height:64px}.now-playing-section{padding:var(--space-md)}.track-card{padding:var(--space-sm)}}@media(max-width:640px){.queue-header-actions{flex-direction:column;width:100%}.queue-header-actions button{width:100%}.view{padding:var(--space-sm)}.section{margin-bottom:var(--space-md)}.upnext-item{cursor:grab;-webkit-tap-highlight-color:transparent}.upnext-item:active{cursor:grabbing}.playlists-grid{grid-template-columns:1fr;gap:var(--space-sm)}}@media(hover:none)and (pointer:coarse){.btn{min-height:44px;padding:12px 20px}.upnext-action-btn{min-width:56px;min-height:72px}.upnext-item:hover,.track-card:hover{background:var(--bg-card)}.upnext-item:active,.track-card:active{background:var(--bg-hover);transform:scale(.98)}}.menu-backdrop{position:fixed;inset:0;background:#0000008c;z-index:999;animation:fadeIn .2s ease}.add-to-playlist-menu{position:fixed;left:50%;bottom:0;transform:translate(-50%);width:min(520px,100%);max-height:85vh;background:var(--bg-card);border-radius:24px 24px 0 0;box-shadow:0 -6px 40px #00000073;z-index:1000;display:flex;flex-direction:column;animation:sheetUp .25s ease}.bottom-sheet__handle{width:56px;height:4px;background:#ffffff4d;border-radius:999px;margin:12px auto 6px}.menu-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-lg);border-bottom:1px solid rgba(255,255,255,.08)}.menu-header h3{margin:0;font-size:16px;font-weight:600;color:var(--text-primary)}.menu-close{border:none;background:#ffffff14;color:var(--text-primary);width:36px;height:36px;border-radius:50%;font-size:18px;cursor:pointer;transition:background .2s ease}.menu-close:hover{background:#ffffff26}.menu-search{padding:0 var(--space-lg) var(--space-md);border-bottom:1px solid rgba(255,255,255,.08)}.menu-search-input{width:100%;padding:12px var(--space-md);border-radius:12px;border:1px solid rgba(255,255,255,.15);background:#ffffff0d;color:var(--text-primary);font-size:14px}.menu-search-input::placeholder{color:var(--text-secondary)}.menu-search-input:focus{outline:2px solid var(--accent);outline-offset:2px}.menu-content{flex:1;overflow-y:auto;padding-bottom:var(--space-lg)}.menu-empty{padding:var(--space-xl);text-align:center;color:var(--text-secondary);font-size:14px}.menu-item{display:flex;align-items:center;gap:var(--space-md);width:100%;padding:var(--space-md) var(--space-lg);background:transparent;border:none;border-bottom:1px solid rgba(255,255,255,.08);cursor:pointer;transition:background .15s ease;text-align:left}.menu-item:last-child{border-bottom:none}.menu-item:hover,.menu-item:focus-visible{background:#ffffff0d}.menu-item__icon{font-size:20px;flex-shrink:0}.menu-item__text{flex:1;min-width:0}.menu-item__name{display:block;font-size:15px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.menu-item__meta{display:block;font-size:13px;color:var(--text-secondary);margin-top:4px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes sheetUp{0%{transform:translate(-50%,20px);opacity:0}to{transform:translate(-50%);opacity:1}}.view--playlist-editor{height:100%;overflow-y:auto}.playlist-editor{max-width:900px;margin:0 auto;padding:var(--space-lg)}.playlist-editor__header{display:flex;align-items:flex-start;gap:var(--space-lg);margin-bottom:var(--space-xl);padding-bottom:var(--space-lg);border-bottom:1px solid var(--border-color)}.playlist-editor__info h1{margin:0 0 var(--space-xs) 0;font-size:28px;font-weight:700;color:var(--text-primary)}.playlist-editor__description{margin:0;color:var(--text-secondary);font-size:14px}.playlist-editor__empty{padding:var(--space-3xl) 0}.playlist-editor__track-list{display:flex;flex-direction:column;gap:var(--space-xs)}.playlist-track-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-md);background:var(--bg-elevated);border:1px solid var(--border-color);border-radius:6px;cursor:grab;transition:all .2s ease}.playlist-track-item:hover{background:var(--bg-hover);border-color:var(--border-color-hover)}.playlist-track-item.dragging{opacity:.5;cursor:grabbing}.playlist-track-item__drag-handle{color:var(--text-tertiary);flex-shrink:0;cursor:grab}.playlist-track-item__drag-handle:active{cursor:grabbing}.playlist-track-item__number{width:32px;text-align:center;color:var(--text-tertiary);font-size:14px;font-weight:500;flex-shrink:0}.playlist-track-item__thumbnail{width:48px;height:48px;border-radius:4px;object-fit:cover;flex-shrink:0}.playlist-track-item__thumbnail.placeholder{display:flex;align-items:center;justify-content:center;background:var(--bg-active);font-size:20px}.playlist-track-item__info{flex:1;min-width:0}.playlist-track-item__title{font-size:14px;font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.playlist-track-item__artist{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}.playlist-track-item__duration{font-size:13px;color:var(--text-tertiary);font-variant-numeric:tabular-nums;flex-shrink:0}.playlist-track-item__actions{display:flex;align-items:center;gap:var(--space-xs);flex-shrink:0}.playlist-track-item__action{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:64px;min-height:64px;padding:var(--space-xs);border-radius:10px;border:1px solid rgba(255,255,255,.1);background:#ffffff05;color:var(--text-secondary);cursor:pointer;font-size:11px;font-weight:600;transition:all .2s ease}.playlist-track-item__action:hover:not(:disabled){background:#ffffff14;color:var(--text-primary);border-color:#fff3}.playlist-track-item__action:disabled{opacity:.35;cursor:not-allowed}.playlist-track-item__action-icon{font-size:16px}.playlist-track-item__action-label{margin-top:4px}.playlist-track-item__action--danger{color:var(--danger);border-color:#ff638466}.playlist-track-item__action--danger:hover:not(:disabled){background:#ff638414;color:var(--danger)}.playlist-editor__error{text-align:center;padding:var(--space-3xl)}.playlist-editor__error h2{margin:0 0 var(--space-md) 0;font-size:24px;color:var(--text-primary)}.playlist-editor__error p{margin:0 0 var(--space-lg) 0;color:var(--text-secondary)}@media(max-width:768px){.playlist-editor{padding:var(--space-md)}.playlist-editor__header{flex-direction:column;gap:var(--space-md)}.playlist-track-item{gap:var(--space-sm);padding:var(--space-xs) var(--space-sm)}.playlist-track-item__thumbnail{width:40px;height:40px}.playlist-track-item__number{width:24px;font-size:12px}.playlist-track-item{flex-wrap:wrap}.playlist-track-item__actions{width:100%;justify-content:space-between;margin-top:var(--space-sm)}.playlist-track-item__action{flex:1;min-width:0;min-height:56px}}@media(hover:none)and (pointer:coarse){.playlist-track-item,.playlist-track-item__drag-handle{cursor:default}}