:root {
  --bg: #f1f7f3;
  --paper: #ffffff;
  --ink: #15281d;
  --muted: #5c6f64;
  --line: #d4e0d8;
  --accent: #2f7a4f;
  --accent-soft: #e3efe8;
  --warn: #fef3d7;
  --warn-line: #e6d59b;
  --max: 1240px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
a { color: var(--accent); }
code { background: var(--accent-soft); padding: 1px 6px; border-radius: 4px; font-size: 0.92em; font-family: ui-monospace, "SF Mono", Menlo, monospace; }

.site-header { background: var(--paper); border-bottom: 1px solid var(--line); }
.nav { display: flex; justify-content: space-between; align-items: center; padding: 14px 0; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand-mark { width: 32px; height: 32px; color: var(--accent); }
.brand-text { display: inline-flex; flex-direction: column; }
.brand strong { font-size: 18px; letter-spacing: -0.02em; }
.brand span { font-size: 11px; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }

.contact-trigger { border: 1px solid var(--line); background: var(--paper); color: var(--ink); font: inherit; font-size: 14px; padding: 8px 16px; border-radius: 999px; cursor: pointer; }
.contact-trigger:hover { border-color: var(--accent); color: var(--accent); }

.hero { padding: 56px 0 24px; }
h1 { font-size: clamp(32px, 5vw, 44px); letter-spacing: -0.03em; line-height: 1.15; margin: 0 0 14px; }
.lede { font-size: clamp(17px, 2.2vw, 20px); color: var(--muted); max-width: 760px; margin: 0; }

.tool { padding: 16px 0 28px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 880px) { .two-col { grid-template-columns: 1fr; } }
.col { display: flex; flex-direction: column; }
.col-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; gap: 12px; }
.col-title { font-weight: 600; }
.col-actions { display: flex; gap: 14px; align-items: center; }
.link-btn { border: none; background: none; font: inherit; color: var(--accent); cursor: pointer; padding: 0; }
.link-btn:hover { text-decoration: underline; }
.file-link { cursor: pointer; }

#input, #output {
  width: 100%;
  min-height: 360px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 13px;
  background: var(--paper);
  color: var(--ink);
  resize: vertical;
  line-height: 1.5;
}
#output { background: #fafdfb; }
#input:focus, #output:focus { outline: 2px solid var(--accent); border-color: var(--accent); }

.status { margin-top: 14px; padding: 12px 16px; background: var(--accent-soft); border: 1px solid var(--line); border-radius: 10px; font-size: 13px; color: var(--ink); }
.status.warning { background: var(--warn); border-color: var(--warn-line); }
.status strong { display: block; margin-bottom: 4px; }
.status ul { margin: 0; padding-left: 22px; }
.status li { margin: 2px 0; }

.options { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 18px; font-size: 14px; color: var(--muted); align-items: center; }
.options label { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.options select { font: inherit; padding: 5px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); color: var(--ink); }

.info { padding: 24px 0 56px; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.card h2 { margin: 0 0 12px; font-size: 20px; }
.card ul { margin: 0 0 12px; padding-left: 22px; }
.card li { margin: 4px 0; }
.card p:last-child { margin-bottom: 0; }
.small { font-size: 13px; }
.muted { color: var(--muted); }

.site-footer { border-top: 1px solid var(--line); padding: 24px 0; background: var(--paper); }
.site-footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 14px; color: var(--muted); }
.site-footer p { margin: 0; }
.for-sale { font-weight: 600; }

.contact-modal { border: none; background: transparent; padding: 0; max-width: 480px; width: 92vw; }
.contact-modal::backdrop { background: rgba(20, 30, 24, 0.55); }
.contact-modal-inner { background: var(--paper); border-radius: 16px; padding: 28px; box-shadow: 0 20px 60px rgba(0,0,0,0.25); }
.contact-modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.contact-modal-head h2 { margin: 0; font-size: 22px; }
.contact-close { border: none; background: none; cursor: pointer; font-size: 26px; line-height: 1; color: var(--muted); padding: 4px 8px; }
.contact-close:hover { color: var(--ink); }
.contact-form { display: grid; gap: 14px; margin-top: 14px; }
.contact-form label { display: grid; gap: 6px; font-size: 13px; font-weight: 600; }
.contact-form input, .contact-form textarea { font: inherit; border: 1px solid var(--line); background: var(--bg); border-radius: 8px; padding: 10px 12px; color: var(--ink); }
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--accent); border-color: var(--accent); }
.submit-button { justify-self: start; border: none; background: var(--accent); color: #fff; border-radius: 999px; font: inherit; font-weight: 700; padding: 10px 22px; cursor: pointer; }
.submit-button:hover { background: #245f3d; }