:root{--lf-brand: #2F6BFF;--lf-brand-2: #14B8D6;--lf-ink: #0B1220;--lf-cloud: #F6F8FC;--lf-line: #E5EAF3;--lf-bg: #FFFFFF;--lf-surface: #FFFFFF;--lf-surface-2: #F2F5FB;--lf-text: rgba(11, 18, 32, .92);--lf-muted: rgba(11, 18, 32, .66);--lf-faint: rgba(11, 18, 32, .4);--lf-success: #16A34A;--lf-warning: #F59E0B;--lf-danger: #EF4444;--lf-info: #0EA5E9;--lf-font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto, Arial, sans-serif;--lf-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--lf-container: 1120px;--lf-radius-lg: 14px;--lf-radius-md: 10px;--lf-radius-sm: 8px;--lf-1: 8px;--lf-2: 16px;--lf-3: 24px;--lf-4: 32px;--lf-5: 40px;--lf-6: 48px;--lf-border: 1px solid var(--lf-line);--lf-shadow-sm: 0 6px 18px rgba(11, 18, 32, .08);--lf-shadow-md: 0 16px 44px rgba(11, 18, 32, .12);--lf-focus: 0 0 0 4px rgba(47, 107, 255, .22);--lf-ease: cubic-bezier(.2, .9, .2, 1);--lf-fast: .14s var(--lf-ease);--lf-med: .22s var(--lf-ease)}[data-theme=dark]{--lf-bg: #070B14;--lf-surface: #0B1220;--lf-surface-2: #0F1A33;--lf-text: rgba(246, 248, 252, .92);--lf-muted: rgba(246, 248, 252, .68);--lf-faint: rgba(246, 248, 252, .44);--lf-line: rgba(229, 234, 243, .12);--lf-shadow-sm: 0 10px 26px rgba(0, 0, 0, .35);--lf-shadow-md: 0 24px 64px rgba(0, 0, 0, .46);--lf-focus: 0 0 0 4px rgba(47, 107, 255, .3)}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:var(--lf-font-sans);background:var(--lf-bg);color:var(--lf-text);line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:var(--lf-brand);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:var(--lf-container);margin:0 auto;padding:0 var(--lf-2)}.hr{border:none;border-top:var(--lf-border);margin:var(--lf-3) 0}.muted{color:var(--lf-muted)}.faint{color:var(--lf-faint)}.kbd,code,pre{font-family:var(--lf-font-mono)}h1,h2,h3,h4{margin:0 0 .4em;letter-spacing:-.02em}h1{font-size:40px;line-height:48px}h2{font-size:32px;line-height:40px}h3{font-size:24px;line-height:32px}p{margin:0 0 1em}.card{background:var(--lf-surface);border:var(--lf-border);border-radius:var(--lf-radius-lg);box-shadow:var(--lf-shadow-sm);padding:var(--lf-3)}.panel{background:var(--lf-surface-2);border:var(--lf-border);border-radius:var(--lf-radius-lg);padding:var(--lf-3)}.badge{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border-radius:999px;border:var(--lf-border);background:#2f6bff14;color:var(--lf-text);font-size:13px;line-height:18px}.badge--new{border-color:#14b8d659;background:#14b8d61f}.btn{appearance:none;border:0;border-radius:var(--lf-radius-md);padding:10px 14px;font-weight:600;font-size:14px;line-height:20px;cursor:pointer;transition:transform var(--lf-fast),box-shadow var(--lf-fast),background var(--lf-fast),border-color var(--lf-fast);display:inline-flex;align-items:center;justify-content:center;gap:10px;-webkit-user-select:none;user-select:none}.btn:active{transform:translateY(1px)}.btn:focus-visible{outline:none;box-shadow:var(--lf-focus)}.btn--primary{background:var(--lf-brand);color:#fff;box-shadow:0 10px 20px #2f6bff38}.btn--primary:hover{background:#255be6}.btn--secondary{background:#2f6bff1a;color:var(--lf-text);border:1px solid rgba(47,107,255,.22)}.btn--secondary:hover{background:#2f6bff24}.btn--tertiary{background:transparent;color:var(--lf-text);border:1px solid transparent}.btn--tertiary:hover{background:#0b12200f}.btn--danger{background:#ef44441f;color:var(--lf-text);border:1px solid rgba(239,68,68,.26)}.btn--danger:hover{background:#ef444429}.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}.label{display:block;font-size:13px;color:var(--lf-muted);margin-bottom:6px}.input,.select,.textarea{width:100%;background:var(--lf-surface);border:var(--lf-border);border-radius:var(--lf-radius-md);padding:11px 12px;color:var(--lf-text);outline:none;transition:box-shadow var(--lf-fast),border-color var(--lf-fast),background var(--lf-fast)}.textarea{min-height:110px;resize:vertical}.input:focus,.select:focus,.textarea:focus{border-color:#2f6bff8c;box-shadow:var(--lf-focus)}.help{font-size:13px;margin-top:6px;color:var(--lf-muted)}.field--error .input,.field--error .select,.field--error .textarea{border-color:#ef44448c;box-shadow:0 0 0 4px #ef444424}.field--error .help{color:#ef4444e6}.nav{position:sticky;top:0;z-index:40;background:#ffffffb8;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:var(--lf-border)}[data-theme=dark] .nav{background:#070b14b8}.nav__inner{max-width:var(--lf-container);margin:0 auto;padding:12px var(--lf-2);display:flex;align-items:center;justify-content:space-between;gap:var(--lf-2)}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em;color:var(--lf-text)}.brand__mark{width:28px;height:28px;border-radius:10px;background:linear-gradient(135deg,var(--lf-brand),var(--lf-brand-2));box-shadow:0 10px 20px #2f6bff2e}.nav__links{display:flex;align-items:center;gap:14px}.nav__links a{color:var(--lf-muted);font-weight:600;font-size:14px;padding:8px 10px;border-radius:10px}.nav__links a:hover{background:#0b12200f;color:var(--lf-text)}.alert{border-radius:var(--lf-radius-lg);border:var(--lf-border);padding:12px 14px;background:var(--lf-surface);display:flex;gap:12px;align-items:flex-start}.alert__title{font-weight:700;margin:0}.alert__body{margin:2px 0 0;color:var(--lf-muted)}.alert--success{border-color:#16a34a42;background:#16a34a14}.alert--warning{border-color:#f59e0b47;background:#f59e0b1a}.alert--danger{border-color:#ef444447;background:#ef44441a}.alert--info{border-color:#0ea5e947;background:#0ea5e91a}.table{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border-radius:var(--lf-radius-lg);border:var(--lf-border);background:var(--lf-surface)}.table th,.table td{padding:12px 14px;border-bottom:var(--lf-border);text-align:left;font-size:14px}.table th{color:var(--lf-muted);font-weight:700;background:#0b122008}[data-theme=dark] .table th{background:#f6f8fc0d}.table tr:last-child td{border-bottom:none}.grid{display:grid;gap:var(--lf-2)}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}@media(max-width:900px){.grid-3,.grid-2{grid-template-columns:1fr}}.stack{display:flex;flex-direction:column;gap:var(--lf-2)}.row{display:flex;align-items:center;gap:var(--lf-2);flex-wrap:wrap}.spacer-2{height:var(--lf-2)}.spacer-3{height:var(--lf-3)}.spacer-4{height:var(--lf-4)}.text-gradient{background:linear-gradient(135deg,var(--lf-brand) 0%,var(--lf-brand-2) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-glow{position:absolute;top:20%;right:-20%;width:800px;height:800px;background:radial-gradient(circle,rgba(47,107,255,.12) 0%,transparent 60%);pointer-events:none;z-index:-1}::selection{background:var(--lf-brand);color:#fff}