:root{color-scheme:light;--bg: #f7f7f8;--bg-elevated: #ffffff;--bg-subtle: #f1f3f5;--bg-hover: #ebeef1;--bg-active: #e1e6eb;--fg: #1a1d21;--fg-muted: #5b6470;--fg-subtle: #8a93a0;--fg-inverse: #ffffff;--border: #e2e6ea;--border-strong: #c8cdd3;--border-focus: #2563eb;--primary: #1d4ed8;--primary-hover: #1e40af;--primary-fg: #ffffff;--success: #15803d;--success-bg: #dcfce7;--warning: #b45309;--warning-bg: #fef3c7;--danger: #b91c1c;--danger-hover: #991b1b;--danger-bg: #fee2e2;--chord: #b45309;--font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, "SFMono-Regular", "Menlo", "Consolas", "Courier New", monospace;--radius-sm: 4px;--radius: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .14);--t-fast: .12s;--t: .18s}[data-theme=dark]{color-scheme:dark;--bg: #0f1115;--bg-elevated: #181b21;--bg-subtle: #15181d;--bg-hover: #1f242b;--bg-active: #262c34;--fg: #e7eaee;--fg-muted: #a3acb8;--fg-subtle: #6f7783;--fg-inverse: #0f1115;--border: #2a2f37;--border-strong: #3a414a;--border-focus: #60a5fa;--primary: #3b82f6;--primary-hover: #60a5fa;--primary-fg: #0b1220;--success: #4ade80;--success-bg: #052e16;--warning: #fbbf24;--warning-bg: #3a2a05;--danger: #f87171;--danger-hover: #fca5a5;--danger-bg: #3a1212;--chord: #fbbf24;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow: 0 4px 14px rgba(0, 0, 0, .5);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .65)}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font-sans);background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:15px;line-height:1.5;transition:background var(--t),color var(--t)}a{color:var(--primary);text-decoration:none;transition:color var(--t-fast)}a:hover{color:var(--primary-hover);text-decoration:underline}h1,h2,h3,h4,h5{margin:0 0 .5em;font-weight:700;letter-spacing:-.01em;color:var(--fg)}h1{font-size:1.75rem}h2{font-size:1.35rem}h3{font-size:1.1rem}p{margin:0 0 .75em}p:last-child{margin-bottom:0}hr{border:none;border-top:1px solid var(--border);margin:1rem 0}::selection{background:color-mix(in srgb,var(--primary) 25%,transparent)}:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px;border-radius:var(--radius-sm)}button:focus,input:focus,select:focus,textarea:focus{outline:none}.auth-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem 1rem;background:var(--bg)}.auth-card{width:100%;max-width:380px}.auth-card h1{margin:0 0 .25rem;font-size:1.5rem}.auth-card .subtitle{margin:0 0 1.2rem;color:var(--fg-muted);font-size:.92rem}.auth-form{display:flex;flex-direction:column;gap:.8rem}.auth-error{background:var(--danger-bg);color:var(--danger);padding:.55rem .7rem;border-radius:var(--radius);font-size:.88rem;border-left:3px solid var(--danger)}.auth-foot{margin-top:1.2rem;text-align:center;font-size:.9rem;color:var(--fg-muted)}[data-theme=dark] ::-webkit-scrollbar{width:10px;height:10px}[data-theme=dark] ::-webkit-scrollbar-track{background:var(--bg)}[data-theme=dark] ::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:8px}