:root {
  --paper: #efe8da;
  --paper-2: #e6ddca;
  --ink: #16130f;
  --soft: #6f665a;
  --rule: #c9bea8;
  --seal: #b3261e;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 16px/1.55 "IBM Plex Mono", ui-monospace, monospace; }
.paper { position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: .5; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .3 0 0 0 0 .25 0 0 0 0 .18 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23n)'/%3E%3C/svg%3E"); }
header, section, footer { position: relative; z-index: 1; }
a { color: inherit; }
.hidden { display: none !important; }
.mono, code, pre { font-family: "IBM Plex Mono", ui-monospace, monospace; }
code { font-size: 13px; background: var(--paper-2); padding: 1px 5px; word-break: break-all; }
em { font-family: "Instrument Serif", serif; font-style: italic; font-weight: 400; }

/* top line */
.top { display: grid; grid-template-columns: 1fr auto 1fr; align-items: baseline; gap: 16px; padding: 18px clamp(16px, 4vw, 56px); border-bottom: 1px solid var(--ink); font-size: 13px; }
.mark { letter-spacing: .32em; font-weight: 600; }
.tally { text-align: center; color: var(--soft); }
.tally span:first-child { color: var(--ink); font-weight: 600; }
.top .right { justify-self: end; display: flex; gap: 16px; align-items: baseline; }
.top a { text-decoration: none; color: var(--soft); }
.lang { background: none; border: 1px solid var(--ink); color: var(--ink); font: 500 12px "IBM Plex Mono", "Noto Serif SC", monospace; padding: 3px 9px; cursor: pointer; }
.lang:hover { background: var(--ink); color: var(--paper); }
body.zh h1, body.zh h2.section, body.zh .rite h3, body.zh .ledger dd, body.zh footer { font-family: "Instrument Serif", "Noto Serif SC", serif; }
body.zh h1 { font-size: clamp(54px, 9vw, 132px); line-height: 1.02; letter-spacing: 0; }
body.zh em { font-family: "Instrument Serif", "Noto Serif SC", serif; font-style: normal; }
.top a:hover { color: var(--seal); }

/* hero: the name is the interface */
.hero { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(28px, 6vw, 90px); align-items: center; min-height: calc(100vh - 58px); padding: clamp(28px, 5vw, 64px) clamp(16px, 4vw, 56px); max-width: 1320px; margin: 0 auto; }
.eyebrow { font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: var(--seal); margin: 0 0 18px; }
h1 { font-family: "Instrument Serif", serif; font-weight: 400; font-size: clamp(64px, 11vw, 168px); line-height: .86; letter-spacing: -.02em; margin: 0 0 clamp(28px, 4vw, 48px); }
h1 em { color: var(--seal); }
.nameline { display: flex; align-items: baseline; border-bottom: 2px solid var(--ink); max-width: 560px; }
.nameline input { flex: 1; min-width: 0; background: transparent; border: 0; outline: 0; color: var(--ink); font: 400 clamp(34px, 5vw, 58px)/1.1 "Instrument Serif", serif; padding: 6px 0; }
.nameline input::placeholder { color: #b7ab94; font-style: italic; }
.suffix { font: italic 400 clamp(26px, 3.6vw, 40px) "Instrument Serif", serif; color: var(--soft); padding: 0 12px 0 4px; }
.nameline button { background: none; border: 0; font: 400 clamp(26px, 3vw, 36px) "Instrument Serif", serif; cursor: pointer; color: var(--ink); padding: 0 2px; }
.nameline button:hover { color: var(--seal); }
.status { font-size: 13px; color: var(--soft); max-width: 560px; margin: 14px 0 0; min-height: 3em; }
.status b { color: var(--ink); font-weight: 600; }
.status .no { color: var(--seal); }

.altar { margin: 0; }
.plate { aspect-ratio: 1; background: var(--paper-2); outline: 1px solid var(--ink); outline-offset: 10px; }
.plate svg { width: 100%; height: 100%; display: block; }
.readout { margin-top: 22px; font-size: 12px; color: var(--soft); display: flex; flex-wrap: wrap; gap: 4px 14px; justify-content: space-between; }
.readout b { color: var(--ink); font-weight: 500; }

/* sections */
section.four, section.terms, section.how, section.registry { max-width: 1320px; margin: 0 auto; padding: clamp(40px, 6vw, 80px) clamp(16px, 4vw, 56px); border-top: 1px solid var(--ink); }
h2.section { font-family: "Instrument Serif", serif; font-weight: 400; font-size: clamp(34px, 4.6vw, 60px); line-height: 1; margin: 0 0 32px; letter-spacing: -.01em; }
h2.section span { font-size: .45em; letter-spacing: .1em; color: var(--seal); vertical-align: .55em; margin-right: 10px; font-family: "IBM Plex Mono"; }

.row4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(14px, 2vw, 26px); }
.sig { position: relative; }
.sig .plate { outline-offset: 6px; }
.sig.done .plate { filter: grayscale(.85) contrast(.9); opacity: .55; }
.seal { position: absolute; top: -12px; right: -10px; width: 58px; height: 58px; border-radius: 50%; background: var(--seal); color: #f7efe3; display: grid; place-items: center; font: 600 11px/1.05 "IBM Plex Mono"; text-align: center; transform: rotate(-12deg); box-shadow: inset 0 0 0 3px #8f1c15, inset 0 0 0 5px #c9483f; }
.seal.done { background: var(--ink); box-shadow: inset 0 0 0 3px #000, inset 0 0 0 5px #3a342c; }
.sig figcaption { margin-top: 16px; font-size: 12px; color: var(--soft); line-height: 1.5; }
.sig figcaption b { color: var(--ink); font-weight: 500; }

.rite { margin-top: clamp(36px, 5vw, 56px); display: grid; gap: 14px; max-width: 880px; }
.rite-head { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.rite h3 { font: italic 400 40px "Instrument Serif", serif; margin: 0; }
.qty { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--soft); flex-wrap: wrap; }
.qty button { width: 38px; height: 38px; border: 1px solid var(--ink); background: transparent; font: 500 15px "IBM Plex Mono"; cursor: pointer; color: var(--ink); }
.qty button.sel { background: var(--ink); color: var(--paper); }
.cost { color: var(--ink); margin-left: 6px; }
.note { font-size: 13px; color: var(--soft); margin: 0; }
.card { white-space: pre-wrap; word-break: break-all; margin: 0; padding: 22px 24px; border: 1px dashed var(--ink); background: #f6f1e6; font-size: 13px; line-height: 1.75; }
.ink { justify-self: start; background: var(--ink); color: var(--paper); border: 0; padding: 14px 22px; font: 500 13px "IBM Plex Mono"; letter-spacing: .14em; text-transform: uppercase; cursor: pointer; }
.ink:hover { background: var(--seal); }

.ledger { display: grid; grid-template-columns: minmax(150px, 260px) 1fr; margin: 0; max-width: 880px; }
.ledger dt, .ledger dd { margin: 0; padding: 14px 0; border-bottom: 1px solid var(--rule); }
.ledger dt { color: var(--soft); font-size: 13px; text-transform: uppercase; letter-spacing: .12em; }
.ledger dd { font-family: "Instrument Serif", serif; font-size: 24px; line-height: 1.25; }

.roman { list-style: upper-roman; padding-left: 40px; max-width: 880px; display: grid; gap: 14px; margin: 0; }
.roman li::marker { color: var(--seal); font-family: "Instrument Serif", serif; font-size: 20px; }
.roman b { font-weight: 600; }
.caution { max-width: 880px; margin: 28px 0 0; padding-left: 16px; border-left: 3px solid var(--seal); font-size: 13px; }

.reg { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.reg a { text-decoration: none; }
.reg .plate { outline-offset: 4px; }
.reg .who { margin-top: 10px; font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.reg .who span { color: var(--soft); }

footer { border-top: 1px solid var(--ink); padding: 28px 16px 48px; text-align: center; font: italic 400 18px "Instrument Serif", serif; color: var(--soft); }
footer p { margin: 0; }

@media (max-width: 900px) {
  .plate { outline-offset: 5px; }
  .altar { padding: 0 6px; }
  .top { grid-template-columns: 1fr auto; }
  .tally { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .row4 { grid-template-columns: repeat(2, 1fr); }
  .reg { grid-template-columns: repeat(3, 1fr); }
  .ledger { grid-template-columns: 1fr; }
  .ledger dt { border-bottom: 0; padding-bottom: 0; }
}