/* PROB–MPA–01 · MACHINE PORTRAIT APPARATUS
   Locked visual system. Values transcribed from the apparatus design. */

:root {
  --paper: #EFF0F2;
  --ink: #16181C;
  --blue: #2233CC;
  --mid: #3B3E45;
  --grey: #767B84;
  --faint: #A7ABB3;
  --border: #D2D5DA;
  --hover: #E7E9EC;
  --sans: Archivo, Helvetica, Arial, sans-serif;
  --mono: "Geist Mono", ui-monospace, Menlo, monospace;
}

h1.title { margin: 0; }

html, body { margin: 0; padding: 0; background: var(--paper); }
body { color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
::selection { background: var(--blue); color: var(--paper); }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--blue); }
input { outline: none; }
input::placeholder { color: var(--faint); }
[hidden] { display: none !important; }
canvas { display: block; }

/* ---- type utilities ------------------------------------------------------ */
.m10, .m11 { font-family: var(--mono); letter-spacing: 0.14em; }
.m10 { font-size: 10px; }
.m11 { font-size: 11px; }
.ls12 { letter-spacing: 0.12em; }
.ls14 { letter-spacing: 0.14em; }
.ls16 { letter-spacing: 0.16em; }
.ls18 { letter-spacing: 0.18em; }
.ls20 { letter-spacing: 0.2em; }
.c-blue { color: var(--blue); }
.c-grey { color: var(--grey); }
.c-faint { color: var(--faint); }
.c-mid { color: var(--mid); }
.c-ink { color: var(--ink); }
.nowrap { white-space: nowrap; }
.prose { margin: 0; font-weight: 300; font-size: 15px; line-height: 1.6; color: var(--mid); text-wrap: pretty; }
.lede { margin: 0; font-weight: 300; font-size: 19px; line-height: 1.45; color: var(--ink); text-wrap: pretty; }

/* ---- page frame ---------------------------------------------------------- */
.page { background: var(--paper); color: var(--ink); min-height: 100vh; display: flex; flex-direction: column; }

.head { position: fixed; top: 0; left: 0; right: 0; z-index: 50; border-bottom: 1px solid var(--border); background: rgba(239,240,242,0.94); backdrop-filter: blur(6px); }
.head-in { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 28px; height: 52px; }
.head-left { display: flex; align-items: center; gap: 18px; min-width: 0; }
.head-mark { display: flex; align-items: center; gap: 11px; }
.head-mark svg { display: block; flex-shrink: 0; overflow: visible; }
.head-mark span { font-weight: 600; font-size: 14px; letter-spacing: 0.06em; }
.head-right { white-space: nowrap; }

.main { flex: 1; max-width: 1120px; width: 100%; margin: 0 auto; padding: 100px 28px 60px 28px; box-sizing: border-box; }

.crumb { font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; color: var(--grey); }

.title-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; justify-content: space-between; border-bottom: 1px solid var(--ink); padding: 26px 0 14px 0; }
.title { font-weight: 500; font-size: clamp(40px, 7vw, 92px); letter-spacing: -0.03em; line-height: 0.9; }

.intro { display: flex; flex-wrap: wrap; gap: 44px; padding-top: 32px; align-items: flex-start; }
.intro .lede { flex: 1 1 380px; min-width: 280px; }
.intro .prose { flex: 1 1 300px; min-width: 260px; }

/* ---- status strips ------------------------------------------------------- */
.strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); border-top: 1px solid var(--border); margin-top: 44px; }
.strip-spec { grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); border-top: none; border-bottom: 1px solid var(--border); margin-top: 0; }
.cell { display: flex; flex-direction: column; gap: 7px; padding: 18px 20px; border-right: 1px solid var(--border); }
.strip-spec .cell { padding: 20px; }
.cell:first-child { padding-left: 0; }
.cell:last-child { padding-right: 0; border-right: none; }
.cell .k { font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; color: var(--faint); }
.cell .v { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; }

/* ---- key / value grids --------------------------------------------------- */
.kv { display: grid; grid-template-columns: auto 1fr; gap: 11px 20px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; line-height: 1.6; }
.kv > span:nth-child(odd) { color: var(--faint); }
.kv.rule { border-top: 1px solid var(--border); padding-top: 16px; }
.kv.wide { gap: 11px 20px; font-size: 11px; line-height: normal; }

.section-head { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: baseline; border-bottom: 1px solid var(--ink); padding-bottom: 12px; }
.panel-head { border-bottom: 1px solid var(--ink); padding-bottom: 11px; }
.panel-head.split { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }

/* ---- two-column screens -------------------------------------------------- */
.two { display: flex; flex-wrap: wrap; gap: 48px; padding-top: 56px; align-items: flex-start; }
.two .fig { flex: 1.05 1 380px; min-width: 300px; display: flex; flex-direction: column; gap: 10px; }
.two .panel { flex: 0.95 1 320px; min-width: 280px; display: flex; flex-direction: column; gap: 20px; }
.panel.gap24 { gap: 24px; }
.caption { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; }

.frame { position: relative; aspect-ratio: 1 / 1; border: 1px solid var(--ink); background: var(--paper); overflow: hidden; }
.frame canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

/* ---- ready: the stage ---------------------------------------------------- */
.stage { cursor: pointer; }
.stage:hover, .stage.over { background: var(--hover); }
.stage-grid { position: absolute; inset: 0; pointer-events: none;
  background-image: repeating-linear-gradient(to right, rgba(167,171,179,0.4) 0 1px, transparent 1px 6.25%),
                    repeating-linear-gradient(to bottom, rgba(167,171,179,0.4) 0 1px, transparent 1px 6.25%); }
.tick { position: absolute; background: var(--ink); }
.tick.tl-h { top: 0; left: 0; width: 22px; height: 1px; }   .tick.tl-v { top: 0; left: 0; width: 1px; height: 22px; }
.tick.tr-h { top: 0; right: 0; width: 22px; height: 1px; }  .tick.tr-v { top: 0; right: 0; width: 1px; height: 22px; }
.tick.bl-h { bottom: 0; left: 0; width: 22px; height: 1px; } .tick.bl-v { bottom: 0; left: 0; width: 1px; height: 22px; }
.tick.br-h { bottom: 0; right: 0; width: 22px; height: 1px; } .tick.br-v { bottom: 0; right: 0; width: 1px; height: 22px; }
.stage-copy { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px; text-align: center; padding: 24px; }
.stage-copy .l1 { font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; color: var(--ink); }
.stage-copy .l2 { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; color: var(--grey); max-width: 30ch; line-height: 1.8; }
.stage-copy .l3 { font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; color: var(--blue); border: 1px solid var(--blue); padding: 9px 16px; }
.await { border: 1px solid var(--border); padding: 16px 18px; display: flex; justify-content: space-between; align-items: center; gap: 14px; }

/* ---- acquired: readings -------------------------------------------------- */
.readings-head { display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; align-items: flex-end; border-bottom: 1px solid var(--ink); padding-bottom: 12px; }
.readings-head .lines { display: flex; flex-direction: column; gap: 8px; }
.field { display: flex; align-items: center; gap: 14px; }
.seg { display: flex; border: 1px solid var(--ink); }
.seg button { appearance: none; background: none; border: none; margin: 0; padding: 9px 14px; cursor: pointer; font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; color: var(--faint); white-space: nowrap; }
.seg button:first-child { border-right: 1px solid var(--ink); }
.seg button[aria-pressed="true"] { color: var(--blue); }
.seg button::before { content: "○ "; }
.seg button[aria-pressed="true"]::before { content: "● "; }

.readings { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 24px; padding-top: 32px; }
.reading { display: flex; flex-direction: column; gap: 11px; }
.reading.pick { cursor: pointer; }
.thumb { position: relative; aspect-ratio: 1 / 1; border: 1px solid var(--border); background: var(--paper); overflow: hidden; }
.thumb canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.thumb .sel { position: absolute; inset: -1px; border: 1px solid var(--blue); pointer-events: none; }
.spec-grid { position: absolute; inset: 0; pointer-events: none;
  background-image: repeating-linear-gradient(to right, rgba(34,51,204,0.14) 0 1px, transparent 1px 6.25%),
                    repeating-linear-gradient(to bottom, rgba(34,51,204,0.14) 0 1px, transparent 1px 6.25%); }
.reading .lab { display: flex; flex-direction: column; gap: 5px; }
.reading .name { display: flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; }
.dot { width: 7px; height: 7px; display: block; flex: 0 0 auto; box-sizing: border-box; border: 1px solid var(--faint); }
.reading[aria-pressed="true"] .dot { background: var(--blue); border-color: var(--blue); }
.reading .sub { font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; color: var(--faint); }

.relation { display: grid; grid-template-columns: auto 1fr; gap: 9px 22px; border-top: 1px solid var(--border); margin-top: 26px; padding-top: 16px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; line-height: 1.6; }

/* ---- registration and inspection ---------------------------------------- */
.pad56 { padding-top: 56px; }
.two.pad32 { padding-top: 32px; }
.pad18 { padding-top: 18px; }
.gap72 { margin-top: 72px; }
.gap80 { margin-top: 80px; }
.narrow { max-width: 46ch; }
.rule-top { border-top: 1px solid var(--ink); padding-top: 14px; }
.await.dashed { border-style: dashed; }
.links { display: flex; flex-wrap: wrap; gap: 20px; align-items: baseline; }

/* A canvas whose own aspect ratio governs the frame, rather than the 1:1 plate frame. */
.frame.free { aspect-ratio: auto; }
.frame.free canvas { position: relative; inset: auto; width: 100%; height: auto; }
.frame.pick { cursor: crosshair; }
.frame.pad { padding: 52px; box-sizing: border-box; display: flex; justify-content: center; }
.frame.pad canvas { position: relative; inset: auto; width: 100%; height: auto; align-self: center; }
.plate-268 { max-width: 268px; }
.plate-248 { max-width: 248px; }

.reg-now { display: flex; flex-direction: column; gap: 5px; line-height: 1.5; border-bottom: 1px solid var(--blue); padding-bottom: 10px; }

.measured-pair { display: flex; flex-wrap: wrap; gap: 32px; padding-top: 32px; align-items: flex-start; }
.mp-col { flex: 0 1 300px; min-width: 230px; max-width: 340px; display: flex; flex-direction: column; gap: 10px; }
.mp-col.wide { flex: 1.15 1 340px; min-width: 270px; max-width: none; }

.verify { max-width: 620px; padding-top: 32px; display: flex; flex-direction: column; gap: 22px; }

.spec-head { padding: 72px 0 12px 0; }
.link { cursor: pointer; background: none; border: none; padding: 0; margin: 0; font: inherit; }
.withdraw { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; color: var(--grey); border-bottom: 1px solid var(--border); padding-bottom: 2px; }
.withdraw:hover { color: var(--blue); border-bottom-color: var(--blue); }

.issue-row { display: flex; flex-wrap: wrap; gap: 32px; padding-top: 32px; align-items: flex-start; }
.issue-row .prose { flex: 1 1 300px; min-width: 260px; }

/* ---- buttons ------------------------------------------------------------- */
.btn { appearance: none; border: none; margin: 0; font: inherit; text-align: left; display: flex; justify-content: space-between; align-items: center; gap: 14px; cursor: pointer; box-sizing: border-box; }
.btn .l { font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; }
.btn .r { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; }
.btn-ink { background: var(--ink); color: var(--paper); padding: 21px 22px; }
.btn-ink:hover { background: var(--blue); }
.btn-ink.p19 { padding: 19px 20px; }
.btn-line { background: none; border: 1px solid var(--ink); color: var(--ink); padding: 19px 20px; }
.btn-line:hover { border-color: var(--blue); color: var(--blue); }
.btn:disabled { cursor: not-allowed; background: var(--border); color: var(--grey); }
.issue-row .btn-ink { flex: 1 1 340px; }
.hold { border: 1px solid var(--blue); color: var(--blue); padding: 19px 20px; display: flex; justify-content: space-between; align-items: center; gap: 14px; }

/* ---- authorisation ------------------------------------------------------- */
.price-row { display: flex; justify-content: space-between; align-items: baseline; gap: 14px; }
.price { font-weight: 400; font-size: 30px; letter-spacing: -0.01em; }
.checkout { display: flex; justify-content: space-between; align-items: center; gap: 14px; border: 1px solid var(--ink); padding: 15px 17px; }
.payment-note { border-left: 1px solid var(--blue); padding-left: 14px; color: var(--blue); font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; line-height: 1.6; }
.payment-note[data-kind="notice"] { color: var(--grey); border-left-color: var(--grey); }
.back { font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; color: var(--grey); align-self: flex-start; }
.back:hover { color: var(--blue); }

/* ---- operating ----------------------------------------------------------- */
.run-id { font-weight: 400; font-size: clamp(22px, 3vw, 30px); letter-spacing: -0.01em; }
.stages { display: flex; flex-direction: column; border-top: 1px solid var(--border); }
.stage-row { display: flex; align-items: center; gap: 14px; padding: 13px 0; border-bottom: 1px solid var(--border); }
.stage-row .dot { border: none; }
.stage-row[data-state="done"] .dot { background: var(--ink); }
.stage-row[data-state="now"] .dot { background: var(--blue); }
.stage-row[data-state="wait"] .dot { border: 1px solid var(--faint); }
.stage-row .sl { flex: 1; font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; }
.stage-row .sn { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; color: var(--faint); }

/* ---- issued -------------------------------------------------------------- */
.issued-head { border-bottom-color: var(--blue); }
.plate-wrap { display: flex; justify-content: center; padding: 64px 0 0 0; }
.plate-col { width: 100%; max-width: 620px; display: flex; flex-direction: column; gap: 16px; }
.plate-col.narrow { max-width: 320px; }
.plate-col .frame { overflow: visible; }

/* The three issued objects, each shown as its two A4 faces. */
.objects { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 40px; padding-top: 32px; }
.object { display: flex; flex-direction: column; gap: 14px; }
.object-faces { display: flex; gap: 12px; }
/* A single-face object keeps the sheet at the same scale as a two-face one. */
.object-faces.single .face { flex: 0 1 calc(50% - 6px); }
.face { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: 7px; }
.sheet { border: 1px solid var(--border); background: var(--paper); }
.sheet canvas { width: 100%; height: auto; }
.plate-cap { display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; align-items: baseline; }
.plate-cap .id { font-weight: 400; font-size: 20px; letter-spacing: -0.01em; }
.record { display: flex; flex-wrap: wrap; gap: 48px; padding-top: 72px; align-items: flex-start; }
.record > div { flex: 1 1 320px; min-width: 280px; display: flex; flex-direction: column; gap: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 16px; padding-top: 56px; align-items: stretch; }
.actions .btn { flex: 1 1 300px; }
.keep { margin: 22px 0 0 0; font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; color: var(--faint); line-height: 1.8; }

/* ---- procedure ----------------------------------------------------------- */
.procedure { padding-top: 96px; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.step { display: flex; flex-direction: column; gap: 9px; padding: 22px 18px 22px 0; }
.step .n { font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; color: var(--blue); }
.step .l { font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; }
.step .t { font-weight: 300; font-size: 14px; line-height: 1.5; color: var(--mid); }

/* ---- foot and narrow bar ------------------------------------------------- */
.foot { border-top: 1px solid var(--border); padding: 18px 28px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; align-items: baseline; }

.bar { position: fixed; bottom: 0; left: 0; right: 0; z-index: 60; border-top: 1px solid var(--ink); background: var(--paper); display: none; }
.bar-idle { padding: 14px 20px; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.bar-live { width: 100%; background: var(--ink); color: var(--paper); padding: 17px 20px; }
.bar-live:hover { background: var(--ink); }

@media (max-width: 779px) {
  .head-lab { display: none; }
  .page:not([data-phase="issued"]) .bar { display: block; }
  .page:not([data-phase="issued"]) { padding-bottom: 56px; }
  .frame.pad { padding: 32px; }
}

@media (max-width: 520px) {
  .mp-col, .mp-col.wide { flex: 1 1 100%; max-width: none; }
  .object-faces { flex-wrap: wrap; }
  .face { flex: 1 1 140px; }
}