:root{--color-primary: #6366f1;--color-primary-hover: #818cf8;--color-primary-glow: rgba(99, 102, 241, .4);--color-accent: #c084fc;--gradient-primary: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);--gradient-surface: linear-gradient(180deg, rgba(255, 255, 255, .05) 0%, rgba(255, 255, 255, 0) 100%);--color-success: #10b981;--color-error: #f43f5e;--color-warning: #fbbf24;--bg-app: #000000;--bg-card: #09090b;--bg-input: #0c0c0e;--bg-hover: #18181b;--glass-bg: rgba(0, 0, 0, .6);--glass-border: rgba(255, 255, 255, .05);--glass-blur: blur(16px);--text-primary: #fafafa;--text-secondary: #a1a1aa;--text-tertiary: #71717a;--text-muted: #9ca3af;--border-color: #27272a;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 18px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .08);--shadow-md: 0 8px 24px -12px rgb(0 0 0 / .45), 0 6px 12px -6px rgb(0 0 0 / .25);--shadow-lg: 0 16px 40px -18px rgb(0 0 0 / .6), 0 8px 24px -8px rgb(0 0 0 / .35);--shadow-glow: 0 0 20px -5px var(--color-primary-glow);--skeleton-bg: #151518;--skeleton-highlight: #23232a;--transition-fast: all .2s cubic-bezier(.4, 0, .2, 1);--transition-smooth: all .3s cubic-bezier(.4, 0, .2, 1)}[data-theme=light]{--bg-app: #ffffff;--bg-card: #f8f8f9;--bg-input: #ffffff;--bg-hover: #f1f1f4;--glass-bg: rgba(255, 255, 255, .8);--glass-border: rgba(0, 0, 0, .08);--text-primary: #09090b;--text-secondary: #52525b;--text-tertiary: #71717a;--text-muted: #6b7280;--border-color: #e4e4e7;--shadow-md: 0 10px 26px -14px rgb(15 23 42 / .24), 0 8px 16px -10px rgb(15 23 42 / .2);--shadow-lg: 0 20px 40px -20px rgb(15 23 42 / .32), 0 10px 24px -14px rgb(15 23 42 / .24);--skeleton-bg: #eceef1;--skeleton-highlight: #dde1e7;--gradient-surface: linear-gradient(180deg, rgba(0, 0, 0, .02) 0%, rgba(0, 0, 0, 0) 100%)}:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400}*,*:before,*:after{box-sizing:border-box}body{margin:0;display:block;min-width:0;min-height:100vh;background:var(--bg-app);color:var(--text-primary)}h1{font-size:32px;line-height:1.2;font-weight:600}h2{font-size:24px;line-height:1.3;font-weight:600}p{color:var(--text-muted);font-size:14px}input,select,textarea{max-width:100%}.ui-button{display:inline-flex;align-items:center;justify-content:center;font-weight:600;border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-smooth);border:1px solid transparent;outline:none;font-family:inherit;position:relative;overflow:hidden}.ui-button:active:not(:disabled){transform:scale(.96)}.ui-button:disabled{opacity:.5;cursor:not-allowed}.ui-button.full-width{width:100%}.variant-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-glow)}.variant-primary:hover:not(:disabled){box-shadow:0 0 25px -5px var(--color-primary-glow);filter:brightness(1.1)}.variant-secondary{background-color:var(--bg-hover);color:var(--text-primary);border-color:var(--border-color)}.variant-secondary:hover:not(:disabled){background-color:var(--bg-card);border-color:var(--text-tertiary)}.variant-outline{background-color:transparent;border-color:var(--border-color);color:var(--text-primary)}.variant-outline:hover:not(:disabled){background-color:var(--bg-hover);border-color:var(--color-primary);color:var(--color-primary)}.variant-danger{background-color:var(--color-error);color:#fff}.variant-danger:hover:not(:disabled){filter:brightness(1.1);box-shadow:0 0 15px -5px #f43f5e66}.variant-ghost{background-color:transparent;border-color:transparent;color:var(--text-secondary)}.variant-ghost:hover:not(:disabled){background-color:var(--bg-hover);color:var(--text-primary)}.size-sm{padding:.4rem .8rem;font-size:.8125rem}.size-md{padding:.6rem 1.2rem;font-size:.9375rem}.size-lg{padding:.8rem 1.6rem;font-size:1rem;letter-spacing:.01em}.spinner{width:1.2em;height:1.2em;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s cubic-bezier(.4,0,.2,1) infinite}@keyframes spin{to{transform:rotate(360deg)}}.settings-hub{display:grid;grid-template-columns:280px minmax(0,1fr);gap:24px;padding:24px}.settings-hub__sidebar{height:fit-content;position:sticky;top:84px;border:1px solid var(--border-color);border-radius:var(--radius-lg);background:var(--bg-card);box-shadow:var(--shadow-sm)}.settings-hub__sidebar-header{padding:18px;border-bottom:1px solid var(--border-color)}.settings-hub__sidebar-header h1{margin:0;font-size:20px;line-height:28px;font-weight:600;color:var(--text-primary)}.settings-hub__sidebar-header p{margin:6px 0 0;font-size:14px;color:var(--text-muted)}.settings-hub__nav{padding:8px;display:flex;flex-direction:column;gap:4px}.settings-hub__nav-item{text-decoration:none;border:1px solid transparent;border-radius:var(--radius-md);padding:12px;transition:var(--transition-fast)}.settings-hub__nav-item:hover{background:var(--bg-hover);border-color:var(--border-color)}.settings-hub__nav-item.is-active{background:var(--bg-hover);border-color:var(--border-color);box-shadow:var(--shadow-sm)}.settings-hub__nav-title{color:var(--text-primary);font-size:14px;font-weight:600}.settings-hub__nav-description{margin-top:2px;color:var(--text-muted);font-size:12px}.settings-hub__content{min-width:0}@media(max-width:1024px){.settings-hub{grid-template-columns:1fr}.settings-hub__sidebar{position:static}}.ui-input-container{display:flex;flex-direction:column;gap:.6rem;margin-bottom:1.5rem}.ui-label{font-size:.8125rem;font-weight:600;color:var(--text-secondary);letter-spacing:.01em;padding-left:.2rem;transition:var(--transition-fast)}.ui-input-container:focus-within .ui-label{color:var(--color-primary)}.ui-input{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:.8rem 1.2rem;font-size:.9375rem;color:var(--text-primary);outline:none;transition:var(--transition-smooth);box-shadow:inset 0 2px 4px #0000000d}.ui-input:focus{border-color:var(--color-primary);background-color:var(--bg-app);box-shadow:0 0 0 4px var(--color-primary-glow),inset 0 2px 4px #0000000d}.ui-input::placeholder{color:var(--text-tertiary)}.ui-input.has-error{border-color:var(--color-error)}.ui-input.has-error:focus{box-shadow:0 0 0 4px #f43f5e33}.ui-error{font-size:.75rem;font-weight:500;color:var(--color-error);padding-left:.2rem;margin-top:.25rem}.ui-skeleton{background:linear-gradient(90deg,var(--skeleton-bg) 25%,var(--skeleton-highlight) 37%,var(--skeleton-bg) 63%);background-size:400% 100%;animation:skeleton-shimmer 1.2s ease-in-out infinite}@keyframes skeleton-shimmer{0%{background-position:100% 0}to{background-position:0 0}}.toast-stack{position:fixed;right:20px;bottom:20px;display:flex;flex-direction:column;gap:10px;z-index:3000}.toast-item{min-width:280px;max-width:360px;border-radius:var(--radius-md);border:1px solid var(--border-color);background:var(--bg-card);box-shadow:var(--shadow-lg);padding:12px 14px;display:flex;align-items:center;gap:10px;animation:toast-in .2s ease}.toast-success{border-color:#10b98180}.toast-error{border-color:#ef444480}.toast-icon{width:18px;height:18px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}.toast-success .toast-icon{background:#10b98126;color:var(--color-success)}.toast-error .toast-icon{background:#ef444426;color:var(--color-error)}.toast-message{font-size:14px;color:var(--text-primary)}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.modal-overlay{position:fixed;inset:0;background-color:#000c;display:flex;justify-content:center;align-items:center;z-index:2000;padding:1rem;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:modal-fade-in .2s ease-out}.modal-content{background-color:var(--bg-app);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;max-height:90vh;display:flex;flex-direction:column;box-shadow:var(--shadow-xl),0 0 0 1px #ffffff0d;animation:modal-slide-up .3s cubic-bezier(.16,1,.3,1)}.modal-header{padding:1.5rem 2rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;background-color:#ffffff05}.modal-title{margin:0;font-size:1.25rem;font-weight:700;color:var(--text-primary)}.modal-close-btn{background:transparent;border:none;color:var(--text-tertiary);font-size:1.5rem;cursor:pointer;line-height:1;padding:.25rem;border-radius:var(--radius-sm);transition:var(--transition-fast);display:flex;align-items:center;justify-content:center;width:32px;height:32px}.modal-close-btn:hover{color:var(--text-primary);background-color:var(--bg-hover)}.modal-body{padding:2rem;overflow-y:auto;flex:1}@keyframes modal-fade-in{0%{opacity:0}to{opacity:1}}@keyframes modal-slide-up{0%{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-body::-webkit-scrollbar{width:8px}.modal-body::-webkit-scrollbar-track{background:transparent}.modal-body::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.modal-body::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.empty-state{border:1px dashed var(--border-color);background:var(--bg-card);border-radius:var(--radius-lg);padding:36px 24px;text-align:center}.empty-state__icon{font-size:36px;margin-bottom:10px}.empty-state__title{margin:0;color:var(--text-primary);font-size:20px;font-weight:600}.empty-state__description{margin:8px auto 18px;color:var(--text-muted);max-width:520px;font-size:14px}