:root {
  --marble: #f3f0ea;
  --marble-2: #ebe6dc;
  --stone: #ddd5c6;
  --stone-dark: #c9bfad;
  --ink: #1e1b18;
  --carved: #3b342d;
  --muted: #5a524a;
  --red: #9b2d20;
  --bronze: #7a5a2e;
  --line: #cfc6b6;
  --font: Optima, "Optima nova", Candara, "Segoe UI", "Gill Sans", sans-serif;
  --gutter: clamp(16px, 4vw, 48px);
  --measure: 40rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; color: var(--ink); font: 400 1.125rem/1.75 var(--font);
  background:
    linear-gradient(118deg, transparent 38%, rgba(150, 140, 125, 0.07) 39%, transparent 41%),
    linear-gradient(64deg, transparent 58%, rgba(150, 140, 125, 0.06) 59%, transparent 60.5%),
    linear-gradient(150deg, transparent 72%, rgba(150, 140, 125, 0.05) 73%, transparent 74%),
    var(--marble);
}
[hidden] { display: none !important; }
a { color: var(--red); text-underline-offset: 0.2em; }
h1, h2, h3 { margin: 0; font-weight: 400; line-height: 1.1; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; left: var(--gutter); top: -80px; z-index: 20; background: var(--ink); color: var(--marble); padding: 0.6rem 1rem; }
.skip:focus { top: 12px; }

/* Header */
.site-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.75rem 2rem; max-width: 1080px; margin: 0 auto; padding: 22px var(--gutter); }
.brand { color: var(--ink); text-decoration: none; font-size: 1.15rem; letter-spacing: 0.32em; }
.brand span { color: var(--red); letter-spacing: 0.08em; }
.site-header ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1.75rem; margin: 0; padding: 0; list-style: none; }
.site-header nav a { color: var(--muted); text-decoration: none; text-transform: uppercase; letter-spacing: 0.2em; font-size: 0.75rem; }
.site-header nav a:hover { color: var(--red); }

/* Monument */
.monument { max-width: 1080px; margin: 0 auto; padding: clamp(24px, 5vw, 56px) var(--gutter) clamp(56px, 8vw, 104px); text-align: center; }
.temple { max-width: 860px; margin: 0 auto; }
.pediment {
  position: relative; height: clamp(54px, 10vw, 104px); margin: 0 -2%;
  background: linear-gradient(180deg, var(--marble-2), var(--stone));
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
  display: grid; place-items: end center; padding-bottom: clamp(8px, 2vw, 18px);
}
.pediment::after { content: ""; position: absolute; inset: auto 0 0; height: 2px; background: var(--stone-dark); }
.pediment span { color: var(--red); font-size: clamp(0.7rem, 1.6vw, 1rem); }
.entablature {
  background: linear-gradient(180deg, #f7f4ee, var(--marble-2));
  border-top: 6px double var(--stone-dark); border-bottom: 6px double var(--stone-dark);
  padding: clamp(22px, 4vw, 44px) clamp(12px, 4vw, 40px);
}
.carve-small { text-transform: uppercase; letter-spacing: 0.32em; font-size: clamp(0.62rem, 1.5vw, 0.8rem); color: var(--bronze); }
.inscription {
  font-size: clamp(3.4rem, 15vw, 10rem); letter-spacing: 0.12em; padding-left: 0.12em; margin: 0.25rem 0 0.15rem; line-height: 1;
  color: var(--carved);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.9), 0 -1px 0 rgba(0, 0, 0, 0.25);
}
.carve-year { color: var(--red); letter-spacing: 0.4em; padding-left: 0.4em; font-size: clamp(0.9rem, 2.4vw, 1.3rem); }
.colonnade { display: flex; justify-content: space-between; height: clamp(70px, 14vw, 150px); padding: 0 4%; }
.colonnade i {
  width: clamp(18px, 4.5vw, 48px);
  background: repeating-linear-gradient(90deg, var(--stone) 0 3px, #f8f6f1 3px 6px, var(--stone-dark) 6px 7px);
  border-left: 1px solid var(--stone-dark); border-right: 1px solid var(--stone-dark);
}
.steps { display: grid; }
.steps i { display: block; height: clamp(8px, 1.6vw, 14px); background: var(--stone); border-top: 1px solid #fff; border-bottom: 1px solid var(--stone-dark); }
.steps i:nth-child(1) { margin: 0 1%; }
.steps i:nth-child(2) { margin: 0 -1%; }
.steps i:nth-child(3) { margin: 0 -3%; }
.countdown { margin-top: 1.75rem; text-transform: uppercase; letter-spacing: 0.24em; font-size: 0.8rem; color: var(--muted); }

/* Blocks */
.block { max-width: 1080px; margin: 0 auto; padding: clamp(56px, 8vw, 104px) var(--gutter); text-align: center; border-top: 1px solid var(--line); }
.roman { font-size: 0.85rem; letter-spacing: 0.4em; padding-left: 0.4em; color: var(--red); margin-bottom: 0.75rem; }
.block h2 { font-size: clamp(2rem, 5vw, 3rem); text-transform: uppercase; letter-spacing: 0.14em; padding-left: 0.14em; margin-bottom: 2rem; }
.prose { max-width: var(--measure); margin: 0 auto; text-align: left; }
.prose p + p { margin-top: 1.1rem; }
.lead { font-size: clamp(1.3rem, 2.6vw, 1.6rem); line-height: 1.45; color: var(--carved); text-align: center; margin-bottom: 1.75rem; font-style: italic; }

/* The name */
.blocks { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 0.6rem; margin-bottom: 2.25rem; }
.stone { display: grid; justify-items: center; gap: 0.15rem; padding: 0.9rem 1.2rem 0.8rem; min-width: 5.5rem; background: linear-gradient(180deg, #f8f5ef, var(--stone)); border: 1px solid var(--stone-dark); box-shadow: inset 0 1px 0 #fff, 0 6px 14px -10px rgba(30, 27, 24, 0.6); }
.glyph { font-size: 1.9rem; letter-spacing: 0.1em; color: var(--carved); text-shadow: 0 1px 0 #fff; line-height: 1.1; }
.val { font-size: 0.95rem; color: var(--muted); font-variant-numeric: lining-nums; }
.note { font-size: 0.75rem; letter-spacing: 0.1em; color: var(--bronze); }
.op { color: var(--red); font-size: 1.4rem; }
.stone-total { background: linear-gradient(180deg, #3b342d, var(--ink)); border-color: var(--ink); }
.stone-total .glyph { color: var(--marble); text-shadow: none; }
.stone-total .val { color: #e2d8c6; }

.plaque { max-width: 640px; margin: 2.75rem auto 0; padding: clamp(18px, 4vw, 30px); background: linear-gradient(180deg, #8a6a3a, var(--bronze)); border: 3px double #c9a66b; color: #fbf3e2; box-shadow: 0 16px 30px -20px rgba(30, 27, 24, 0.8); }
.plaque label { display: block; text-transform: uppercase; letter-spacing: 0.24em; font-size: 0.8rem; margin-bottom: 0.75rem; color: #fbf3e2; }
.plaque-row { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.4fr); gap: 0.6rem; }
.plaque input { min-width: 0; font: 400 1.5rem/1.2 var(--font); letter-spacing: 0.1em; text-align: center; text-transform: uppercase; color: var(--ink); background: #fbf3e2; border: 0; padding: 0.55rem; }
.plaque input:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.plaque output { display: grid; place-items: center; font-size: clamp(1.4rem, 4vw, 1.9rem); letter-spacing: 0.14em; padding: 0.4rem 0.6rem; background: rgba(30, 27, 24, 0.35); color: #fff6e0; overflow-wrap: anywhere; text-shadow: 0 1px 0 rgba(0, 0, 0, 0.4); }
.plaque output.is-error { font-size: 1rem; letter-spacing: 0.04em; }
.plaque-parts { margin-top: 0.75rem; letter-spacing: 0.08em; min-height: 1.75em; }
.plaque-hint { font-size: 0.9rem; color: #f0e3c5; }

/* Principles */
.frieze { list-style: none; margin: 0 auto; padding: 0; max-width: 900px; counter-reset: f; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 3rem; text-align: left; }
.frieze li { counter-increment: f; display: grid; grid-template-columns: 3rem minmax(0, 1fr); gap: 0 1rem; padding: 1.25rem 0; border-top: 1px solid var(--line); }
.frieze li:last-child { grid-column: 1 / -1; max-width: 50%; justify-self: center; width: 100%; }
.frieze li::before { content: counter(f, upper-roman); grid-row: span 2; color: var(--red); letter-spacing: 0.1em; font-size: 1.1rem; padding-top: 0.15rem; }
.frieze h3 { text-transform: uppercase; letter-spacing: 0.1em; font-size: 1.05rem; margin-bottom: 0.3rem; }
.frieze p { color: var(--muted); }

/* Time wall */
.wall-summary { text-align: center; margin-bottom: 1.25rem; }
.legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem 1.5rem; margin-bottom: 1.5rem; font-size: 0.85rem; letter-spacing: 0.06em; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 0.45rem; }
.k { display: inline-block; width: 14px; height: 14px; background: var(--stone); border: 1px solid var(--stone-dark); }
.k-past { opacity: 0.35; }
.k-now { background: var(--red); border-color: var(--red); }
.k-halving { background: var(--bronze); border-color: var(--bronze); }
.k-end { background: var(--ink); border-color: var(--ink); }
.wall { display: grid; grid-template-columns: 3.4rem repeat(10, minmax(0, 1fr)); gap: 4px; max-width: 640px; margin: 0 auto; }
.wall .head { font-size: 0.7rem; color: var(--muted); text-align: center; letter-spacing: 0.08em; }
.wall .decade { font-size: 0.75rem; letter-spacing: 0.08em; color: var(--muted); text-align: right; padding-right: 0.5rem; align-self: center; }
.wall .y { aspect-ratio: 1; display: grid; place-items: center; font-size: 0.65rem; color: var(--muted); background: linear-gradient(180deg, #f6f3ed, var(--stone)); border: 1px solid var(--stone-dark); }
.wall .y.past { opacity: 0.3; }
.wall .y.now { background: var(--red); border-color: var(--red); color: #fff; }
.wall .y.halving { background: var(--bronze); border-color: var(--bronze); color: #fff; }
.wall .y.end { background: var(--ink); border-color: var(--ink); color: var(--marble); box-shadow: 0 0 0 2px var(--marble), 0 0 0 3px var(--ink); }
.wall .y.blank { visibility: hidden; }
.fine { margin-top: 1.5rem; font-size: 0.9rem; color: var(--muted); }

/* Letters */
.letter { position: relative; max-width: 640px; margin: 2.25rem auto 0; text-align: left; display: grid; gap: 1.1rem; padding: clamp(22px, 5vw, 40px); background: #fbf9f4; border: 1px solid var(--line); box-shadow: 0 20px 40px -30px rgba(30, 27, 24, 0.6); }
.seal { position: absolute; right: clamp(14px, 4vw, 28px); top: -26px; width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; background: radial-gradient(circle at 35% 30%, #c2493a, var(--red) 60%, #6e1f16); color: #f7d9cf; font-size: 0.6rem; letter-spacing: 0.12em; box-shadow: 0 4px 10px -4px rgba(0, 0, 0, 0.5); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field label { display: block; text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.75rem; color: var(--bronze); margin-bottom: 0.35rem; }
.field label span { text-transform: none; letter-spacing: 0; color: var(--muted); }
.field input, .field textarea { width: 100%; font: 400 1.1rem/1.7 var(--font); color: var(--ink); background: transparent; border: 0; border-bottom: 1px solid var(--stone-dark); padding: 0.4rem 0.1rem; }
.field textarea { resize: vertical; background: repeating-linear-gradient(transparent 0 calc(1.87rem - 1px), var(--line) calc(1.87rem - 1px) 1.87rem); line-height: 1.87rem; border-bottom: 0; }
.field input:focus-visible, .field textarea:focus-visible { outline: 2px solid var(--red); outline-offset: 2px; }
.btn { justify-self: start; background: var(--red); color: var(--marble); border: 0; padding: 0.95rem 1.6rem; font: 400 0.9rem/1 var(--font); text-transform: uppercase; letter-spacing: 0.22em; cursor: pointer; }
.btn:hover { background: var(--ink); }
.letter-note { font-size: 0.9rem; color: var(--muted); }

.site-footer { border-top: 1px solid var(--line); padding: 2.5rem var(--gutter) 3rem; text-align: center; color: var(--muted); font-size: 0.95rem; }
.footer-mark { font-size: 1.5rem; letter-spacing: 0.4em; padding-left: 0.4em; color: var(--ink); margin-bottom: 0.4rem; }

@media (max-width: 760px) {
  .frieze { grid-template-columns: 1fr; }
  .frieze li:last-child { max-width: none; }
  .plaque-row, .field-row { grid-template-columns: 1fr; }
  .op { display: none; }
  .blocks { gap: 0.5rem; }
  .stone { min-width: 4.4rem; padding: 0.7rem 0.8rem; }
  .stone-total { flex-basis: 100%; }
}
@media (max-width: 420px) {
  .inscription { letter-spacing: 0.04em; padding-left: 0.04em; }
  .wall { grid-template-columns: 2.6rem repeat(10, minmax(0, 1fr)); gap: 3px; }
  .wall .y { font-size: 0.55rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}