:root{--brand-50: #f2f0ff;--brand-100: #e6e2ff;--brand-200: #cfc7ff;--brand-300: #ae9fff;--brand-400: #8b70ff;--brand-500: #6d47f5;--brand-600: #5b2fe0;--brand-700: #4a23bd;--brand-800: #3d1f99;--brand-900: #331d7a;--accent-400: #22d3ee;--accent-500: #06b6d4;--accent-600: #0891b2;--success-400: #34d399;--success-500: #10b981;--success-600: #059669;--warning-400: #fbbf24;--warning-500: #f59e0b;--warning-600: #d97706;--danger-400: #f87171;--danger-500: #ef4444;--danger-600: #dc2626;--bg-base: #f5f4fb;--bg-surface: #ffffff;--bg-raised: #ffffff;--bg-sunken: #ecebf6;--bg-hover: rgba(109, 71, 245, .06);--bg-active: rgba(109, 71, 245, .12);--bg-overlay: rgba(23, 20, 41, .45);--text-primary: #17142a;--text-secondary: #55506e;--text-muted: #8a85a3;--text-inverse: #ffffff;--text-on-brand: #ffffff;--border-subtle: rgba(23, 20, 41, .08);--border-strong: rgba(23, 20, 41, .16);--border-focus: var(--brand-500);--bubble-in-bg: #ffffff;--bubble-in-text: var(--text-primary);--bubble-out-bg: linear-gradient(135deg, var(--brand-500), var(--brand-600));--bubble-out-text: #ffffff;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;--text-2xs: .6875rem;--text-xs: .75rem;--text-sm: .8125rem;--text-md: .875rem;--text-base: .9375rem;--text-lg: 1.0625rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--weight-normal: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--leading-tight: 1.25;--leading-normal: 1.5;--leading-relaxed: 1.7;--sp-1: .25rem;--sp-2: .5rem;--sp-3: .75rem;--sp-4: 1rem;--sp-5: 1.25rem;--sp-6: 1.5rem;--sp-8: 2rem;--sp-10: 2.5rem;--sp-12: 3rem;--sp-16: 4rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-xl: 20px;--radius-2xl: 28px;--radius-full: 999px;--shadow-xs: 0 1px 2px rgba(23, 20, 41, .05);--shadow-sm: 0 2px 8px rgba(23, 20, 41, .06);--shadow-md: 0 6px 20px rgba(23, 20, 41, .08);--shadow-lg: 0 16px 40px rgba(23, 20, 41, .12);--shadow-brand: 0 8px 24px rgba(109, 71, 245, .28);--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--dur-fast: .12s;--dur-base: .2s;--dur-slow: .32s;--sidebar-width: 360px;--info-panel-width: 340px;--header-height: 64px;--composer-min-height: 56px;--z-dropdown: 100;--z-sticky: 200;--z-overlay: 300;--z-modal: 400;--z-toast: 500}:root[data-theme=dark],:root[data-theme=system]{color-scheme:light}:root[data-theme=dark]{color-scheme:dark;--bg-base: #0f0e17;--bg-surface: #171622;--bg-raised: #1c1a2b;--bg-sunken: #0b0a12;--bg-hover: rgba(174, 159, 255, .08);--bg-active: rgba(174, 159, 255, .16);--bg-overlay: rgba(5, 4, 10, .7);--text-primary: #ece9ff;--text-secondary: #a8a2c8;--text-muted: #6f6a8c;--text-inverse: #17142a;--border-subtle: rgba(236, 233, 255, .08);--border-strong: rgba(236, 233, 255, .18);--bubble-in-bg: #232135;--bubble-in-text: var(--text-primary);--bubble-out-bg: linear-gradient(135deg, var(--brand-500), var(--brand-700));--shadow-xs: 0 1px 2px rgba(0, 0, 0, .4);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .45);--shadow-md: 0 6px 20px rgba(0, 0, 0, .5);--shadow-lg: 0 16px 40px rgba(0, 0, 0, .6);--shadow-brand: 0 8px 24px rgba(109, 71, 245, .4)}@media(prefers-color-scheme:dark){:root[data-theme=system]{color-scheme:dark;--bg-base: #0f0e17;--bg-surface: #171622;--bg-raised: #1c1a2b;--bg-sunken: #0b0a12;--bg-hover: rgba(174, 159, 255, .08);--bg-active: rgba(174, 159, 255, .16);--bg-overlay: rgba(5, 4, 10, .7);--text-primary: #ece9ff;--text-secondary: #a8a2c8;--text-muted: #6f6a8c;--text-inverse: #17142a;--border-subtle: rgba(236, 233, 255, .08);--border-strong: rgba(236, 233, 255, .18);--bubble-in-bg: #232135;--bubble-in-text: var(--text-primary);--bubble-out-bg: linear-gradient(135deg, var(--brand-500), var(--brand-700));--shadow-xs: 0 1px 2px rgba(0, 0, 0, .4);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .45);--shadow-md: 0 6px 20px rgba(0, 0, 0, .5);--shadow-lg: 0 16px 40px rgba(0, 0, 0, .6);--shadow-brand: 0 8px 24px rgba(109, 71, 245, .4)}}*,*:before,*:after{box-sizing:border-box}html,body{height:100%;margin:0}body{font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--text-primary);background:var(--bg-base);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}h1,h2,h3,h4,h5,h6,p,figure{margin:0}button{font:inherit;color:inherit;cursor:pointer}input,textarea,select{font:inherit;color:inherit}a{color:var(--brand-500);text-decoration:none}a:hover{text-decoration:underline}ul,ol{margin:0;padding:0;list-style:none}:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px;border-radius:var(--radius-sm)}:focus:not(:focus-visible){outline:none}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}*{scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent}*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-track{background:transparent}*::-webkit-scrollbar-thumb{background:var(--border-strong);border:3px solid transparent;background-clip:content-box;border-radius:var(--radius-full)}*::-webkit-scrollbar-thumb:hover{background:var(--text-muted);background-clip:content-box}.card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);padding:0 var(--sp-5);height:42px;border:1px solid transparent;border-radius:var(--radius-md);font-size:var(--text-md);font-weight:var(--weight-semibold);white-space:nowrap;transition:background var(--dur-fast) var(--ease-out),transform var(--dur-fast) var(--ease-out),box-shadow var(--dur-fast) var(--ease-out),opacity var(--dur-fast) var(--ease-out)}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--brand-500);color:var(--text-on-brand);box-shadow:var(--shadow-brand)}.btn-primary:hover:not(:disabled){background:var(--brand-600)}.btn-secondary{background:var(--bg-surface);color:var(--text-primary);border-color:var(--border-strong)}.btn-secondary:hover:not(:disabled){background:var(--bg-hover)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary)}.btn-danger{background:var(--danger-500);color:#fff}.btn-danger:hover:not(:disabled){background:var(--danger-600)}.btn-sm{height:34px;padding:0 var(--sp-3);font-size:var(--text-sm)}.btn-icon{width:40px;height:40px;padding:0;border-radius:var(--radius-md)}.field{display:flex;flex-direction:column;gap:var(--sp-2)}.field-label{font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--text-secondary)}.field-input{width:100%;height:44px;padding:0 var(--sp-4);background:var(--bg-surface);border:1px solid var(--border-strong);border-radius:var(--radius-md);transition:border-color var(--dur-fast) var(--ease-out),box-shadow var(--dur-fast) var(--ease-out)}.field-input::placeholder{color:var(--text-muted)}.field-input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px #6d47f526}.field-input.is-invalid{border-color:var(--danger-500)}.field-error{font-size:var(--text-sm);color:var(--danger-500)}.badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 var(--sp-2);border-radius:var(--radius-full);font-size:var(--text-2xs);font-weight:var(--weight-bold);font-variant-numeric:tabular-nums;line-height:1}.badge-unread{background:var(--brand-500);color:#fff}.badge-muted{background:var(--text-muted);color:#fff}.chip{display:inline-flex;align-items:center;gap:var(--sp-1);padding:var(--sp-1) var(--sp-3);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:var(--weight-medium)}.chip-success{background:#10b98124;color:var(--success-600)}.chip-warning{background:#f59e0b29;color:var(--warning-600)}.chip-danger{background:#ef444424;color:var(--danger-600)}.chip-neutral{background:var(--bg-sunken);color:var(--text-secondary)}.skeleton{background:linear-gradient(90deg,var(--bg-sunken) 25%,var(--bg-hover) 50%,var(--bg-sunken) 75%);background-size:200% 100%;animation:shimmer 1.4s infinite linear;border-radius:var(--radius-sm)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes slide-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes scale-in{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@keyframes pulse-ring{0%{box-shadow:0 0 #10b98180}70%{box-shadow:0 0 0 6px #10b98100}to{box-shadow:0 0 #10b98100}}.only-mobile{display:none}@media(max-width:767px){.only-mobile{display:grid}}.page-actions{display:flex;align-items:center;gap:var(--sp-2)}