/* PostcardOrigins — origins.css
   Palette: card-stock cream, printer's ink, one-cent-Franklin green,
   postmark violet (interactive), sepia rules, carmine (undatable only). */

:root {
  --stock: #f3ebd8;
  --stock-deep: #ece1c6;
  --ink: #2b2620;
  --ink-soft: #514738;
  --sepia: #8a7358;
  --rule: #c9b892;
  --franklin: #3e7a4e;
  --franklin-deep: #2e5c3a;
  --postmark: #5b4a9e;
  --carmine: #a63d2f;
  --card-white: #faf6ea;
}

* { box-sizing: border-box; }

html { font-size: 100%; }

body {
  margin: 0;
  background: var(--stock);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.0625rem;
  line-height: 1.65;
}

/* type roles */
.display, h1, h2 {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 500;
  letter-spacing: 0.01em;
}
h1 { font-size: clamp(1.7rem, 4.5vw, 2.6rem); line-height: 1.15; margin: 0 0 0.4em; }
h2 { font-size: clamp(1.25rem, 3vw, 1.6rem); margin: 2.2em 0 0.5em; }
.mono, .result-year, #teich-input {
  font-family: "Courier Prime", "Courier New", monospace;
}

/* the POST CARD wordmark treatment */
.wordmark {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.32em;
  font-size: 1rem;
  color: var(--ink);
  text-decoration: none;
}
.wordmark span { color: var(--franklin); }

header.site {
  border-bottom: 1px solid var(--rule);
  background: var(--stock);
}
.shell {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}
header.site .shell {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
  gap: 1rem;
  flex-wrap: wrap;
}
nav.primary a {
  color: var(--ink-soft);
  text-decoration: none;
  margin-left: 1.2rem;
  font-size: 0.95rem;
}
nav.primary a:hover, nav.primary a:focus-visible { color: var(--postmark); text-decoration: underline; }

main { padding: 2.5rem 0 4rem; }

.eyebrow, .wiz-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--sepia);
  font-family: Georgia, serif;
  margin: 0 0 0.6em;
}

.lede { font-size: 1.15rem; max-width: 42em; }

/* ---------- the postcard-back component (signature) ---------- */

.postcard {
  background: var(--card-white);
  border: 1px solid var(--rule);
  border-radius: 2px;
  box-shadow: 0 1px 0 rgba(43, 38, 32, 0.08), 0 6px 18px rgba(43, 38, 32, 0.07);
  padding: 1.5rem;
  position: relative;
  margin: 2rem 0;
}
@media (min-width: 700px) {
  .postcard.divided {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.25rem;
    padding: 2rem 2.25rem 2.25rem;
  }
  /* the divided-back rule */
  .postcard.divided::before {
    content: "";
    position: absolute;
    top: 2rem;
    bottom: 2rem;
    left: 50%;
    width: 1px;
    background: var(--rule);
  }
}

/* the stamp box */
.stampbox {
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  width: 3.4rem;
  height: 4rem;
  border: 1px dashed var(--sepia);
  color: var(--sepia);
  font-size: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.3rem;
  user-select: none;
}
.stampbox::before, .stampbox::after {
  content: "▲";
  position: absolute;
  font-size: 0.45rem;
  color: var(--sepia);
}
.stampbox::before { top: 2px; left: 3px; }
.stampbox::after { top: 2px; right: 3px; }
.stampbox .b::before, .stampbox .b::after {
  content: "▲";
  position: absolute;
  bottom: 2px;
  font-size: 0.45rem;
}
.stampbox .b::before { left: 3px; }
.stampbox .b::after { right: 3px; }
@media (max-width: 699px) { .stampbox { display: none; } }

.postcard .corr h1, .postcard .corr h2 { margin-top: 0; }

/* decoder input */
label.field {
  display: block;
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 0.4rem;
}
#teich-input {
  width: 100%;
  font-size: 1.35rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--sepia);
  border-radius: 2px;
  background: var(--card-white);
  color: var(--ink);
  letter-spacing: 0.06em;
}
#teich-input:focus-visible {
  outline: 2px solid var(--postmark);
  outline-offset: 1px;
}
.btn, #teich-go {
  font-family: Georgia, serif;
  font-size: 1rem;
  background: var(--franklin);
  color: var(--card-white);
  border: none;
  border-radius: 2px;
  padding: 0.6rem 1.3rem;
  cursor: pointer;
  margin-top: 0.8rem;
}
.btn:hover, #teich-go:hover { background: var(--franklin-deep); }
.btn:focus-visible, #teich-go:focus-visible { outline: 2px solid var(--postmark); outline-offset: 2px; }
.btn-quiet {
  font-family: Georgia, serif;
  font-size: 0.95rem;
  background: none;
  border: 1px solid var(--sepia);
  border-radius: 2px;
  color: var(--ink-soft);
  padding: 0.45rem 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.btn-quiet:hover, .btn-quiet:focus-visible { border-color: var(--postmark); color: var(--postmark); }

.examples { margin-top: 0.9rem; font-size: 0.9rem; color: var(--ink-soft); }
.examples button {
  font-family: "Courier Prime", monospace;
  background: var(--stock-deep);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 0.15rem 0.5rem;
  margin: 0.15rem 0.2rem 0.15rem 0;
  cursor: pointer;
  color: var(--ink);
  font-size: 0.9rem;
}
.examples button:hover { border-color: var(--postmark); color: var(--postmark); }

/* result — "written onto the address side" */
#result[hidden] { display: none; }
.result-year {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  color: var(--franklin-deep);
  margin: 0 0 0.15em;
  line-height: 1.1;
}
.result-series { font-style: italic; color: var(--ink-soft); margin: 0 0 0.8em; }
.result-process { margin: 0 0 0.5em; }
.result-conf { color: var(--ink-soft); font-size: 0.95rem; }
.result-caveats { padding-left: 1.2em; font-size: 0.95rem; color: var(--ink-soft); }
.result-caveats li { margin-bottom: 0.4em; }
.result-source { font-size: 0.8rem; color: var(--sepia); border-top: 1px solid var(--rule); padding-top: 0.7em; margin-top: 1.2em; }
.result-cant { font-size: 1.3rem; color: var(--carmine); font-family: "Fraunces", Georgia, serif; margin-top: 0; }
.result-guide a { color: var(--postmark); }

/* wizard */
.wiz-q { font-size: 1.2rem; font-family: "Fraunces", Georgia, serif; margin-top: 0; }
.wiz-help { font-size: 0.95rem; color: var(--ink-soft); }
.wiz-opts { display: flex; flex-direction: column; gap: 0.6rem; margin: 1.2rem 0; }
.wiz-opt {
  font-family: Georgia, serif;
  font-size: 1.02rem;
  text-align: left;
  background: var(--card-white);
  border: 1px solid var(--sepia);
  border-radius: 2px;
  padding: 0.8rem 1rem;
  cursor: pointer;
  color: var(--ink);
}
.wiz-opt:hover, .wiz-opt:focus-visible { border-color: var(--postmark); color: var(--postmark); }
.wiz-nav { margin-top: 1.4rem; display: flex; gap: 0.8rem; }

/* home: tool cards + era band */
.tools {
  display: grid;
  gap: 1.5rem;
  margin: 2.5rem 0;
}
@media (min-width: 700px) { .tools { grid-template-columns: 1fr 1fr; } }
.tool-card {
  background: var(--card-white);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 1.5rem;
  text-decoration: none;
  color: var(--ink);
  display: block;
}
.tool-card:hover, .tool-card:focus-visible { border-color: var(--postmark); }
.tool-card h2 { margin-top: 0; }
.tool-card:hover h2 { color: var(--postmark); }
.tool-card p { color: var(--ink-soft); margin-bottom: 0; }

/* era band: structure encodes chronology */
.era-band { margin: 3rem 0 1rem; }
.era-band ol {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-top: 2px solid var(--sepia);
}
.era-band li { padding: 0.7rem 0.6rem 0 0; border-right: 1px solid var(--rule); margin-right: 0.6rem; }
.era-band li:last-child { border-right: none; }
.era-band .yrs { font-family: "Courier Prime", monospace; font-size: 0.78rem; color: var(--franklin-deep); display: block; }
.era-band .nm { font-size: 0.85rem; line-height: 1.3; display: block; margin-top: 0.15rem; }
@media (max-width: 699px) {
  .era-band ol { grid-template-columns: repeat(2, 1fr); border-top: none; }
  .era-band li { border-top: 2px solid var(--sepia); border-right: none; margin-bottom: 0.8rem; }
}

footer.site {
  border-top: 1px solid var(--rule);
  padding: 1.6rem 0 2.2rem;
  font-size: 0.85rem;
  color: var(--sepia);
}
footer.site a { color: var(--sepia); }

.sources-note { font-size: 0.9rem; color: var(--ink-soft); border-left: 3px solid var(--franklin); padding-left: 1rem; max-width: 46em; }

@media (prefers-reduced-motion: no-preference) {
  .tool-card, .wiz-opt, .btn, #teich-go, .btn-quiet { transition: border-color 120ms ease, color 120ms ease, background 120ms ease; }
}

/* stamp box directory */
.sb-svg { width: 5.2rem; height: auto; color: var(--sepia); flex-shrink: 0; }
.sb-row { display: flex; gap: 1.5rem; align-items: flex-start; background: var(--card-white); border: 1px solid var(--rule); border-radius: 2px; padding: 1.3rem; margin: 1.2rem 0; }
.sb-row h2 { margin: 0 0 0.2em; font-size: 1.15rem; }
.sb-range { font-size: 1.4rem; margin: 0 0 0.4em; }
.sb-grid { grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr)); }
.sb-card { text-align: center; padding: 1.1rem; }
.sb-card .sb-svg { width: 3.6rem; margin: 0 auto; display: block; }
.sb-card h2 { font-size: 1.05rem; margin: 0.6rem 0 0.2rem; }
.sb-range-sm { font-size: 0.78rem; color: var(--franklin-deep); }

/* postage rate table + select */
#rate-select { font-size: 1.1rem; padding: 0.5rem 0.6rem; border: 1px solid var(--sepia); border-radius: 2px; background: var(--card-white); color: var(--ink); max-width: 16rem; display: block; }
#rate-select:focus-visible { outline: 2px solid var(--postmark); }
#rate-result { margin-top: 1rem; }
.rate-table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
.rate-table th { text-align: left; border-bottom: 2px solid var(--sepia); padding: 0.4rem 0.6rem 0.4rem 0; font-family: "Fraunces", Georgia, serif; font-weight: 500; }
.rate-table td { border-bottom: 1px solid var(--rule); padding: 0.45rem 0.6rem 0.45rem 0; vertical-align: top; }
.rate-table td.mono { color: var(--franklin-deep); white-space: nowrap; }