:root{--bg: #fbfbfa;--surface: #ffffff;--surface-sunken: #f4f4f2;--border: #e2e2dd;--border-strong: #c9c9c2;--text: #1a1a18;--text-muted: #6b6b63;--accent: #1f5f4f;--accent-text: #ffffff;--danger: #9b2c2c;--danger-bg: #fdf0f0;--radius-sm: 3px;--radius: 6px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace}@media(prefers-color-scheme:dark){:root{--bg: #16161a;--surface: #1d1d21;--surface-sunken: #232329;--border: #2e2e35;--border-strong: #43434c;--text: #ececef;--text-muted: #9a9aa3;--accent: #4fb79a;--accent-text: #0d1f1a;--danger: #f08a8a;--danger-bg: #2a1a1a}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}a{color:var(--accent)}h1,h2,h3{line-height:1.25;margin:0 0 .5rem;font-weight:600}h1{font-size:1.5rem}h2{font-size:1.15rem}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem 1.25rem;border-bottom:1px solid var(--border);background:var(--surface)}.app-header__brand{font-weight:600;letter-spacing:.01em;text-decoration:none;color:var(--text)}.app-header__right{display:flex;align-items:center;gap:.75rem;font-size:.875rem;color:var(--text-muted)}.app-main{flex:1;width:100%;max-width:60rem;margin:0 auto;padding:2rem 1.25rem 4rem}.auth-layout{max-width:24rem;margin:3rem auto}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}.field{display:block;margin-bottom:1rem}.field__label{display:block;font-size:.8125rem;font-weight:500;color:var(--text-muted);margin-bottom:.25rem}.field__input{width:100%;padding:.5rem .625rem;font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--border-strong);border-radius:var(--radius-sm)}.field__input:focus{outline:2px solid var(--accent);outline-offset:-1px}.field__input[aria-invalid=true]{border-color:var(--danger)}.field__error{display:block;margin-top:.25rem;font-size:.8125rem;color:var(--danger)}.field__hint{display:block;margin-top:.25rem;font-size:.8125rem;color:var(--text-muted)}.button{display:inline-flex;align-items:center;justify-content:center;padding:.5rem .875rem;font:inherit;font-weight:500;color:var(--accent-text);background:var(--accent);border:1px solid transparent;border-radius:var(--radius-sm);cursor:pointer}.button:disabled{opacity:.55;cursor:not-allowed}.button--secondary{color:var(--text);background:transparent;border-color:var(--border-strong)}.button--block{width:100%}.alert{padding:.625rem .75rem;margin-bottom:1rem;border:1px solid var(--danger);border-radius:var(--radius-sm);background:var(--danger-bg);color:var(--danger);font-size:.875rem}.muted{color:var(--text-muted)}.mono{font-family:var(--font-mono);font-size:.8125rem}.stack>*+*{margin-top:1rem}.definition-list{display:grid;grid-template-columns:minmax(8rem,auto) 1fr;gap:.375rem 1rem;margin:0;font-size:.875rem}.definition-list dt{color:var(--text-muted)}.definition-list dd{margin:0}