:root {
  --ink: #2c1c15;
  --muted: #6d5142;
  --rust: #8d4935;
  --rust-deep: #693425;
  --paper: #e8d9b5;
  --paper-light: #f7efd9;
  --sun: #e4bd5b;
  --line: rgba(103, 65, 45, .24);
  --blue: #45637b;
}

* { box-sizing: border-box; }

html { min-height: 100%; background: var(--paper); }

body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 11% 7%, rgba(255, 255, 255, .48), transparent 27%),
    radial-gradient(circle at 86% 35%, rgba(150, 100, 55, .13), transparent 35%),
    repeating-linear-gradient(8deg, rgba(90, 61, 34, .025) 0 1px, transparent 1px 5px),
    var(--paper);
}

body::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: .23;
  background: repeating-radial-gradient(circle at 31% 19%, rgba(92, 65, 40, .12) 0 1px, transparent 1px 4px);
  mix-blend-mode: multiply;
}

.parallel-shell {
  position: relative;
  z-index: 1;
  width: min(1340px, calc(100% - 18px));
  margin: 0 auto;
  padding: 7px 0 12px;
}

.parallel-intro {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  padding: 0 4px;
}

.eyebrow {
  margin: 0 0 3px;
  color: var(--rust);
  font-size: .58rem;
  font-weight: 850;
  letter-spacing: .15em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font: 700 clamp(1.45rem, 2.8vw, 2.25rem)/1.04 Georgia, serif;
}

.parallel-intro > p {
  max-width: 390px;
  margin: 0 0 2px;
  color: var(--muted);
  font: italic .7rem/1.35 Georgia, serif;
  text-align: right;
}

.date-form {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: center;
  gap: 8px;
  margin: 7px 0 0;
  padding: 6px 12px;
  background: rgba(247, 239, 217, .75);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 12px 34px rgba(75, 48, 31, .09);
}

.date-form label {
  display: grid;
  gap: 3px;
  color: var(--muted);
  font: .7rem Georgia, serif;
}

.date-form input,
.date-form select {
  height: 31px;
  padding: 0 9px;
  color: var(--ink);
  font: 500 .94rem Georgia, serif;
  background: #fffdf7;
  border: 2px solid var(--blue);
  border-radius: 10px;
  outline: 0;
}

.date-form input:focus,
.date-form select:focus { border-color: var(--rust); box-shadow: 0 0 0 3px rgba(141, 73, 53, .14); }
.date-form input { width: 60px; }
.date-form .year-field input { width: 98px; }
.date-form select { min-width: 86px; }

.date-form button {
  min-height: 31px;
  padding: 0 20px;
  color: white;
  font-size: .76rem;
  font-weight: 800;
  background: var(--rust-deep);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
}

.date-form button:hover { background: var(--rust); }

.converter-error {
  max-width: 720px;
  margin: 10px auto 0;
  padding: 9px 12px;
  color: #762d22;
  text-align: center;
  background: #f8d9cb;
  border-radius: 10px;
}

.parallel-results {
  display: grid;
  grid-template-columns: 1.08fr 1fr 1fr;
  gap: 10px;
  margin-top: 7px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .3s ease, transform .3s ease;
}

.parallel-results.is-visible { opacity: 1; transform: none; }

.tradition-panel {
  min-width: 0;
  overflow: hidden;
  background: rgba(250, 245, 230, .78);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 13px 28px rgba(65, 41, 27, .1);
}

.tradition-heading {
  position: relative;
  padding: 7px 12px 8px;
  color: white;
  text-align: center;
  background: linear-gradient(125deg, var(--rust-deep), var(--rust));
}

.tradition-heading p,
.tradition-heading h2,
.tradition-heading span { margin: 0; }
.tradition-heading p { color: #f3d27d; font-size: .48rem; font-weight: 850; letter-spacing: .15em; text-transform: uppercase; }
.tradition-heading h2 { font: 700 1.34rem/1 Georgia, serif; }
.tradition-heading span { position: absolute; right: 12px; bottom: 9px; color: #f5e6bd; font: italic .58rem Georgia, serif; }

.subheading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  color: var(--rust-deep);
}

.subheading span { font-size: .56rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.subheading strong { font: 700 .77rem ui-monospace, SFMono-Regular, Menlo, monospace; }

.maya-long-count { padding: 7px 10px 5px; border-bottom: 1px solid var(--line); }
.mini-long-count { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; margin-top: 4px; }
.mini-long-count-unit { display: grid; min-width: 0; grid-template-rows: 44px 48px; align-items: center; justify-items: center; }
.mini-period-glyph,
.mini-numeral-glyph { display: block; max-width: 100%; object-fit: contain; }
.mini-period-glyph { width: 48px; height: 44px; }
.mini-numeral-glyph { width: 31px; height: 47px; }

.calendar-round { padding: 7px 9px; border-bottom: 1px solid var(--line); }
.calendar-round h3,
.lord-block h3 { margin: 0; color: var(--rust); font-size: .55rem; letter-spacing: .11em; text-align: center; text-transform: uppercase; }
.calendar-round-pairs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; margin-top: 5px; }
.glyph-date { padding: 4px; text-align: center; background: rgba(255, 253, 247, .65); border-radius: 10px; }
.glyph-date > strong { display: block; font: 700 .73rem Georgia, serif; }
.maya-date-pair { display: flex; height: 56px; align-items: center; justify-content: center; gap: 2px; margin-top: 2px; }
.maya-date-numeral,
.maya-date-sign,
.maya-lord-glyph { display: block; object-fit: contain; }
.maya-date-numeral { width: 29px; height: 47px; }
.maya-date-sign { width: 50px; height: 50px; }

.maya-closing { display: grid; grid-template-columns: .82fr 1.18fr; min-height: 100px; }
.lord-block { padding: 7px; text-align: center; }
.lord-block > strong { display: block; margin-top: 3px; color: var(--rust-deep); font: 700 .76rem Georgia, serif; }
.maya-lord-glyph { width: 50px; height: 50px; margin: 1px auto 0; }
.maya-closing > p {
  display: grid;
  place-items: center;
  margin: 0;
  padding: 9px;
  color: var(--rust-deep);
  font: 600 .67rem/1.42 Georgia, serif;
  text-align: center;
  background: transparent;
  border-left: 1px solid var(--line);
}

.solar-result,
.tonal-result,
.parallel-bearer { text-align: center; }

.solar-result { min-height: 184px; padding: 6px 10px 5px; border-bottom: 1px solid var(--line); }
.solar-result > p,
.tonal-result > p { margin: 0; color: var(--rust); font-size: .424rem; font-weight: 850; letter-spacing: .11em; text-transform: uppercase; }
.solar-result img { display: block; width: 100%; height: 123px; margin: 1px auto; object-fit: contain; }
.solar-result h3,
.tonal-result h3 { margin: 0; font: 700 clamp(.688rem, 1.12vw, .848rem)/1.1 Georgia, serif; }

.tonal-result { min-height: 108px; padding: 5px 10px 9px; border-bottom: 1px solid var(--line); }
.tonal-result h3 { margin-top: 3px; }
.tonal-glyph-pair { display: flex; height: 64px; align-items: center; justify-content: center; gap: 7px; margin-top: 1px; }
.parallel-numeral { display: block; width: 31px; height: 53px; object-fit: contain; }
.tonal-sign { display: block; width: 101px; height: 55px; object-fit: contain; }
.tonal-result .parallel-numeral { height: 59px; }
.tonal-result .tonal-sign { width: 105px; height: 60px; }

.parallel-bearer { padding: 6px 9px 7px; background: rgba(229, 213, 174, .38); }
.parallel-bearer > p { margin: 0; font: 700 .72rem/1.35 Georgia, serif; }
.parallel-bearer small { display: block; margin-top: 2px; color: var(--muted); font-size: .49rem; letter-spacing: .03em; }
.bearer-pair { height: 53px; margin-top: 1px; }

.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
[hidden] { display: none !important; }

@media (max-width: 980px) {
  .parallel-results { grid-template-columns: 1fr 1fr; }
  .maya-panel { grid-column: 1 / -1; }
}

@media (max-width: 650px) {
  .parallel-shell { width: min(100% - 12px, 560px); }
  .parallel-intro { display: block; text-align: center; }
  .parallel-intro > p { margin: 5px auto 0; text-align: center; }
  .date-form button { width: 100%; }
  .parallel-results { grid-template-columns: 1fr; }
  .maya-panel { grid-column: auto; }
  .solar-result img { height: 180px; }
}