:root{--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, system-ui, sans-serif;--color-text-primary: #0f172a;--color-text-secondary: #475569;--color-text-tertiary: #94a3b8;--color-text-info: #4f46e5;--color-text-success: #15803d;--color-text-danger: #dc2626;--color-background-primary: #ffffff;--color-background-secondary: #f8fafc;--color-background-tertiary: #f1f5f9;--color-background-success: #f0fdf4;--color-background-danger: #fef2f2;--color-border-primary: #cbd5e1;--color-border-secondary: #e2e8f0;--color-border-tertiary: #e8edf2;--color-border-danger: #fecaca;--color-primary: #0f172a;--color-primary-hover: #1e293b;--color-accent: #4f46e5;--color-accent-hover: #4338ca;--focus-ring: 0 0 0 3px rgba(79, 70, 229, .3);--border-radius-sm: 6px;--border-radius-md: 8px;--border-radius-lg: 12px;--border-radius-xl: 16px;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .04), 0 1px 3px rgba(15, 23, 42, .06);--shadow-md: 0 6px 16px rgba(15, 23, 42, .08), 0 2px 6px rgba(15, 23, 42, .05)}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font-sans);font-size:15px;line-height:1.55;color:var(--color-text-primary);background:var(--color-background-secondary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}::selection{background:#4f46e529}h1,h2,h3,h4{color:var(--color-text-primary);font-weight:600;line-height:1.22;letter-spacing:-.012em;margin:0 0 .4em}h1{font-size:1.55rem}h2{font-size:1.25rem}h3{font-size:1.05rem}p{margin:0 0 .75em}a{color:var(--color-accent);text-decoration:none;font-weight:500;transition:color .15s ease}a:hover{color:var(--color-accent-hover);text-decoration:underline}button{font-family:inherit;font-size:14px;font-weight:500;line-height:1.2;color:#fff;background:var(--color-primary);border:1px solid transparent;border-radius:var(--border-radius-md);padding:10px 18px;cursor:pointer;transition:background .15s ease,border-color .15s ease,box-shadow .15s ease,opacity .15s ease,transform .04s ease;-webkit-tap-highlight-color:transparent}button:hover:not(:disabled){background:var(--color-primary-hover)}button:active:not(:disabled){transform:translateY(.5px)}button:disabled{background:#e5e7eb;color:#9ca3af;border-color:#e5e7eb;cursor:not-allowed}button:focus-visible{outline:none;box-shadow:var(--focus-ring)}input,select,textarea{font-family:inherit;font-size:14px;color:var(--color-text-primary);background:var(--color-background-primary);border:1px solid var(--color-border-primary);border-radius:var(--border-radius-md);padding:10px 12px;transition:border-color .15s ease,box-shadow .15s ease}input::placeholder,textarea::placeholder{color:var(--color-text-tertiary)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--color-accent);box-shadow:var(--focus-ring)}input[type=radio],input[type=checkbox]{width:auto;padding:0;accent-color:var(--color-accent);box-shadow:none}select{cursor:pointer}label{color:var(--color-text-secondary)}@media (pointer: fine){*{scrollbar-width:thin;scrollbar-color:var(--color-border-primary) transparent}}