/* OneTime — Champlin Enterprises. Warm paper, ink, brass. System fonts only
   (a privacy tool shouldn't phone home to a font CDN). */

:root {
  --paper:      #FBFAF7;
  --paper-2:    #F4F1EA;
  --surface:    #FFFFFF;
  --ink:        #14120E;
  --ink-soft:   #4A463C;
  --ink-mute:   #847E70;
  --line:       rgba(20, 18, 14, 0.10);
  --line-soft:  rgba(20, 18, 14, 0.06);
  --brass:      #9A7B4F;
  --brass-deep: #7C6038;
  --brass-tint: rgba(154, 123, 79, 0.10);
  --green:      #3f7d56;
  --red:        #a8442f;
  --radius:     14px;
  --radius-sm:  10px;
  --shadow:     0 1px 2px rgba(20,18,14,.04), 0 8px 30px rgba(20,18,14,.06);
  --serif:  ui-serif, "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --sans:   system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono:   ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.005em;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: 100%; max-width: 680px; margin: 0 auto; padding: 0 22px; }

a { color: var(--brass-deep); text-decoration: none; }
a:hover { text-decoration: underline; }

.hidden { display: none !important; }
.muted { color: var(--ink-mute); }

/* ---------- header ---------- */
.site-header { border-bottom: 1px solid var(--line-soft); background: rgba(251,250,247,.85); backdrop-filter: saturate(1.2) blur(8px); position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand-mark { display: inline-flex; color: var(--brass); }
.brand-name { font-family: var(--serif); font-size: 20px; letter-spacing: -0.01em; }
.site-nav { display: flex; gap: 22px; }
.site-nav a { color: var(--ink-soft); font-size: 15px; font-weight: 500; }
.site-nav a.active { color: var(--ink); }
.site-nav a:hover { color: var(--brass-deep); text-decoration: none; }

/* ---------- hero ---------- */
.hero { padding: 56px 0 28px; text-align: center; }
.hero h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(30px, 6vw, 44px); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 16px; }
.lede { font-size: 18px; color: var(--ink-soft); margin: 0 auto; max-width: 560px; }

/* ---------- cards ---------- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 26px; margin: 8px 0; }

.field-label { display: block; font-size: 13px; font-weight: 600; letter-spacing: 0.01em; color: var(--ink-soft); margin: 0 0 8px; text-transform: uppercase; }

textarea, input[type="text"], select {
  width: 100%; font-family: var(--sans); font-size: 16px; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 13px 14px; transition: border-color .15s, box-shadow .15s;
}
textarea { resize: vertical; min-height: 132px; font-family: var(--mono); font-size: 14.5px; line-height: 1.55; }
#r-secret, #secret-link { font-family: var(--mono); }
textarea:focus, input[type="text"]:focus, select:focus { outline: none; border-color: var(--brass); box-shadow: 0 0 0 3px var(--brass-tint); background: var(--surface); }
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23847E70' d='M6 8L2 4h8z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 38px; }

.field-row { display: flex; justify-content: flex-end; margin-top: 6px; }
.char-count { font-family: var(--mono); font-size: 12px; color: var(--ink-mute); }
.char-count.over { color: var(--red); }

.controls { display: flex; gap: 16px; align-items: flex-end; margin-top: 18px; }
.control { flex: 1; }
.controls .btn { white-space: nowrap; }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-family: var(--sans); font-size: 15px; font-weight: 600; line-height: 1; padding: 13px 20px; border-radius: var(--radius-sm); border: 1px solid transparent; cursor: pointer; transition: background .15s, border-color .15s, transform .05s; }
.btn:active { transform: translateY(1px); }
.btn-lg { padding: 16px 28px; font-size: 16px; }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: #2a261d; text-decoration: none; }
.btn-ghost { background: transparent; color: var(--ink-soft); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--brass); color: var(--brass-deep); text-decoration: none; }
.btn[disabled] { opacity: .6; cursor: default; }
.btn.loading .btn-label { visibility: hidden; }
.btn.loading::after { content: ""; position: absolute; width: 16px; height: 16px; border: 2px solid currentColor; border-top-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; }
.btn { position: relative; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- advanced / hints ---------- */
.adv-toggle { margin-top: 18px; background: none; border: none; color: var(--brass-deep); font-family: var(--sans); font-size: 14px; font-weight: 600; cursor: pointer; padding: 0; }
.adv-toggle:hover { text-decoration: underline; }
.adv-panel { margin-top: 14px; padding-top: 18px; border-top: 1px solid var(--line-soft); }
.hint { font-size: 13.5px; color: var(--ink-mute); margin: 10px 0 0; line-height: 1.55; }
.error { color: var(--red); font-size: 14.5px; margin: 14px 0 0; min-height: 1px; }
.error:empty { margin: 0; }

/* ---------- result panel ---------- */
.result-head h2, .reveal-card h1 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.015em; }
.result-head h2 { font-size: 26px; margin: 12px 0 0; }
.result-badge { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--brass-deep); background: var(--brass-tint); border-radius: 999px; padding: 5px 12px; }
.badge-done { color: var(--green); background: rgba(63,125,86,.12); }
.badge-gone { color: var(--ink-mute); background: var(--paper-2); }
.result-note { color: var(--ink-soft); margin: 14px 0 18px; }
.link-row { display: flex; gap: 10px; }
.link-row input { background: var(--paper-2); font-size: 14px; }
.result-expiry-line { font-size: 14px; margin: 14px 0 18px; }
.result .btn-ghost, .reveal-card .btn-ghost { margin-top: 4px; }

/* ---------- assurance ---------- */
.assurance { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 44px 0 10px; }
.assure h3 { font-family: var(--serif); font-size: 17px; font-weight: 600; margin: 0 0 7px; }
.assure p { font-size: 14.5px; color: var(--ink-soft); margin: 0; line-height: 1.55; }
.stat-line { text-align: center; color: var(--ink-mute); font-size: 14.5px; margin: 40px 0 8px; }
.stat-line strong { color: var(--ink); }

/* ---------- reveal ---------- */
.reveal-card { margin-top: 48px; text-align: center; }
.reveal-card h1 { font-size: clamp(26px, 5vw, 34px); margin: 16px 0 0; }
.reveal-card .result-note { max-width: 480px; margin-left: auto; margin-right: auto; }
.reveal-card textarea { text-align: left; margin-bottom: 16px; }
.pass-wrap { margin-top: 22px; text-align: left; max-width: 420px; margin-left: auto; margin-right: auto; }
.pass-wrap input { margin-bottom: 12px; }
.reveal-card .btn { margin: 4px auto 0; }

/* ---------- prose (docs / whats-new) ---------- */
.page-head { padding: 52px 0 8px; }
.page-head h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(28px, 5vw, 38px); letter-spacing: -0.02em; margin: 0 0 10px; }
.page-head p { color: var(--ink-soft); font-size: 18px; margin: 0; max-width: 600px; }
.prose { padding: 14px 0 20px; }
.prose h2 { font-family: var(--serif); font-size: 22px; font-weight: 600; letter-spacing: -0.01em; margin: 36px 0 12px; padding-top: 18px; border-top: 1px solid var(--line-soft); }
.prose h2:first-child { border-top: none; padding-top: 0; margin-top: 12px; }
.prose h3 { font-size: 16px; font-weight: 700; margin: 22px 0 8px; }
.prose p, .prose li { color: var(--ink-soft); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose code { font-family: var(--mono); font-size: 13.5px; background: var(--paper-2); border: 1px solid var(--line-soft); border-radius: 6px; padding: 1px 6px; color: var(--ink); }
.prose strong { color: var(--ink); }
.callout { background: var(--brass-tint); border: 1px solid rgba(154,123,79,.25); border-radius: var(--radius-sm); padding: 16px 18px; margin: 20px 0; }
.callout p { margin: 0; color: var(--ink-soft); }

/* ---------- changelog ---------- */
.release { padding: 22px 0; border-top: 1px solid var(--line-soft); }
.release:first-of-type { border-top: none; }
.release-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.release-ver { font-family: var(--mono); font-weight: 700; font-size: 15px; color: var(--ink); }
.release-date { font-size: 13px; color: var(--ink-mute); }
.release ul { margin: 12px 0 0; padding-left: 20px; }
.release li { color: var(--ink-soft); margin: 6px 0; }
.tag { display: inline-block; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; border-radius: 5px; padding: 2px 7px; margin-right: 6px; }
.tag-new { color: var(--green); background: rgba(63,125,86,.12); }

/* ---------- footer ---------- */
.site-footer { margin-top: auto; border-top: 1px solid var(--line-soft); padding: 34px 0; }
.footer-inner { text-align: center; }
.footer-tag { font-family: var(--serif); font-size: 16px; color: var(--ink-soft); margin: 0 0 12px; }
.footer-meta { font-size: 13.5px; color: var(--ink-mute); margin: 0; }
.footer-meta a { color: var(--ink-soft); }

/* ---------- responsive ---------- */
@media (max-width: 620px) {
  body { font-size: 16px; }
  .controls { flex-direction: column; align-items: stretch; }
  .controls .btn { width: 100%; }
  .assurance { grid-template-columns: 1fr; gap: 22px; }
  .link-row { flex-direction: column; }
  .link-row .btn { width: 100%; }
  .site-nav { gap: 16px; }
}