:root{--paper: #edefe9;--surface: #f8f9f5;--surface-2: #f1f3ec;--ink: #11161a;--ink-soft: #5a6168;--line: #d4d8cd;--line-strong: #c2c7b8;--accent: #243be0;--accent-ink: #1a2bb0;--safe: #1c6b53;--warn: #b4541c;--radius: 14px;--radius-sm: 9px;--maxw: 1080px;--shadow-sm: 0 1px 0 rgba(17, 22, 26, .04), 0 1px 2px rgba(17, 22, 26, .05);--shadow: 0 2px 4px rgba(17, 22, 26, .05), 0 8px 24px -12px rgba(17, 22, 26, .18);--font-display: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;--font-body: "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.001ms!important;transition-duration:.001ms!important}}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}h1,h2,h3{font-family:var(--font-display);font-weight:700;line-height:1.05;letter-spacing:-.02em;margin:0}h1{font-size:clamp(2.4rem,6vw,4.1rem)}h2{font-size:clamp(1.6rem,3.4vw,2.3rem)}h3{font-size:1.18rem;letter-spacing:-.01em}a{color:var(--accent-ink);text-decoration-thickness:1px;text-underline-offset:2px}a:hover{color:var(--accent)}.kicker{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);display:inline-flex;align-items:center;gap:.5ch}.rail{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.04em;color:var(--safe);display:inline-flex;align-items:center;gap:.6ch}.rail:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--safe);box-shadow:0 0 0 3px #1c6b5329;animation:pulse 2.6s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.45}}.btn{font-family:var(--font-display);font-weight:600;font-size:.98rem;letter-spacing:-.01em;border:1px solid var(--accent);background:var(--accent);color:#fff;padding:.7em 1.25em;border-radius:var(--radius-sm);cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,background .12s ease;display:inline-flex;align-items:center;gap:.6ch;text-decoration:none}.btn:hover{background:var(--accent-ink);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow)}.btn:active{transform:translateY(0)}.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}.btn--ghost:hover{background:var(--surface-2);color:var(--ink)}:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px;border-radius:4px}.boundary{position:relative;background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--radius);box-shadow:var(--shadow)}.boundary:after{content:"";position:absolute;inset:7px;border:1px dashed var(--line-strong);border-radius:calc(var(--radius) - 6px);pointer-events:none}.boundary__head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:13px 18px;border-bottom:1px dashed var(--line);position:relative;z-index:1}.boundary__body{padding:22px;position:relative;z-index:1}@media(max-width:560px){.boundary__body{padding:16px}}label.field{display:block;margin-bottom:14px}label.field>span{display:block;font-size:.82rem;color:var(--ink-soft);margin-bottom:5px;font-weight:600}input[type=number],input[type=text],select{width:100%;font-family:var(--font-body);font-size:1rem;padding:.6em .7em;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--paper);color:var(--ink)}input:focus,select:focus{border-color:var(--accent)}input[type=range]{width:100%;accent-color:var(--accent)}.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media(max-width:480px){.row{grid-template-columns:1fr}}.result{font-family:var(--font-mono);background:var(--ink);color:var(--paper);border-radius:var(--radius-sm);padding:16px 18px;margin-top:4px}.result .big{font-size:2rem;font-weight:700;letter-spacing:-.02em}.result .sub{color:#b9c0c7;font-size:.82rem}.muted{color:var(--ink-soft)}.small{font-size:.86rem}.dropzone{border:1.5px dashed var(--line-strong);border-radius:var(--radius-sm);background:var(--surface-2);padding:30px 18px;text-align:center;cursor:pointer;transition:border-color .15s ease,background .15s ease}.dropzone.is-over{border-color:var(--accent);background:#e7eafc}hr.sep{border:none;border-top:1px solid var(--line);margin:28px 0}