/* ==========================================================================
   Application Architect — theapparchitect.eu
   Direction: "Systems Record"

   TYPEFACE SWITCH
   ---------------
   Running prose uses --body-face. Headings, labels, data and status codes
   always stay monospace — that is the character of the design.

     All-mono (default):  --body-face: var(--mono);
     Mono + sans hybrid:  --body-face: var(--sans);

   Change the one line marked below. Nothing else needs to move.
   ========================================================================== */

:root {
  /* paper-grey with a green bias */
  --ground:    #E9EBE7;
  --surface:   #F5F6F3;
  --raised:    #FFFFFF;
  --ink:       #171A17;
  --muted:     #5C635B;
  --faint:     #8A9188;
  --hair:      #C9CEC5;
  --heavy:     #171A17;
  --accent:    #1E5B2E;
  --accent-bg: #DEEADF;
  --warn:      #8A5214;
  --warn-bg:   #F2E7D6;

  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --sans: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* ---- THE SWITCH: these two lines together ---- */
  --body-face: var(--mono);
  --lede-size: 0.875rem;
  /* hybrid alternative:
       --body-face: var(--sans);
       --lede-size: 0.9375rem;
     (sans reads smaller than mono at the same size, hence the bump) */

  --frame: 940px;
  --pad: clamp(1.15rem, 4.5vw, 2.75rem);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground:    #0E100E;
    --surface:   #161A16;
    --raised:    #1C211C;
    --ink:       #E4E8E3;
    --muted:     #98A197;
    --faint:     #6B736A;
    --hair:      #2A302A;
    --heavy:     #46503F;
    --accent:    #62C98A;
    --accent-bg: #14261A;
    --warn:      #D6A552;
    --warn-bg:   #26200F;
  }
}
:root[data-theme="dark"] {
  --ground:    #0E100E;
  --surface:   #161A16;
  --raised:    #1C211C;
  --ink:       #E4E8E3;
  --muted:     #98A197;
  --faint:     #6B736A;
  --hair:      #2A302A;
  --heavy:     #46503F;
  --accent:    #62C98A;
  --accent-bg: #14261A;
  --warn:      #D6A552;
  --warn-bg:   #26200F;
}

* { box-sizing: border-box; }

html { color-scheme: light dark; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.875rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }

/* prose takes the switchable face; everything structural stays mono */
.lede,
.row .v,
.notice p,
.legal,
input, textarea, select {
  font-family: var(--body-face);
}
.wrap { max-width: var(--frame); margin: 0 auto; padding: 0 var(--pad); }

h1, h2, h3 { margin: 0; font-weight: 700; text-wrap: balance; font-family: var(--mono); }
h1 {
  font-size: clamp(1.5rem, 4.2vw, 2.45rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.035em;
  max-width: 24ch;
}
h2 { font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; }
h3 { font-size: 0.875rem; font-weight: 700; }
p { margin: 0; }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  font-weight: 500;
}
a:hover { background: var(--accent-bg); }
a:focus-visible, button:focus-visible, input:focus-visible,
textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------------- masthead ---------------- */
.masthead {
  background: var(--surface);
  border-bottom: 2px solid var(--heavy);
  position: sticky; top: 0; z-index: 20;
}
.masthead-in {
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.6rem 1.5rem; flex-wrap: wrap; padding-block: 0.8rem;
}
.mark { font-weight: 800; letter-spacing: -0.02em; font-size: 0.9375rem; color: var(--ink); border: 0; }
.mark:hover { background: none; }
.mark span { color: var(--accent); }
nav { display: flex; gap: 0.15rem; flex-wrap: wrap; }
nav a {
  font-size: 0.8125rem; font-weight: 500;
  border: 1px solid transparent; border-bottom: 1px solid transparent;
  color: var(--muted); padding: 0.25rem 0.55rem;
}
nav a:hover { color: var(--ink); background: none; }
nav a[aria-current="page"] {
  color: var(--accent);
  border-color: var(--hair);
  background: var(--accent-bg);
}

/* ---------------- document control block ---------------- */
.record { background: var(--surface); border-bottom: 1px solid var(--hair); font-size: 0.75rem; }
.record-in {
  margin: 0; padding-block: 0.7rem;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.15rem 2rem;
}
.record-in div { display: flex; gap: 0.6rem; }
.record-in dt { color: var(--faint); letter-spacing: 0.1em; text-transform: uppercase; flex: none; }
.record-in dd { margin: 0; color: var(--muted); }

/* ---------------- hero ---------------- */
.hero { border-bottom: 1px solid var(--hair); }
.hero-in { padding-block: clamp(2.5rem, 6vw, 4.25rem); display: grid; gap: 1.15rem; }
.prompt { font-size: 0.8125rem; color: var(--accent); letter-spacing: 0.02em; font-family: var(--mono); }
.cursor {
  display: inline-block; width: 0.55em; height: 1.05em;
  background: var(--accent); vertical-align: -0.18em; margin-left: 0.15em;
  animation: blink 1.15s step-end infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cursor { animation: none; } }
.lede { color: var(--muted); max-width: 66ch; font-size: var(--lede-size); }

/* ---------------- sections ---------------- */
section { padding-block: clamp(2.25rem, 5vw, 3.5rem); border-top: 1px solid var(--hair); }
section:first-of-type { border-top: 0; }
.sec-head { display: flex; align-items: baseline; gap: 0.85rem; padding-bottom: 1.35rem; }
.sec-head .idx { color: var(--faint); font-size: 0.75rem; font-weight: 500; flex: none; }
.sec-head .rule { flex: 1; height: 1px; background: var(--hair); }

/* ---------------- register rows ---------------- */
.rows { border: 1px solid var(--hair); background: var(--surface); }
.row {
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(0, 1fr) auto;
  gap: 0.3rem 1.75rem;
  padding: 0.95rem 1.15rem;
  border-bottom: 1px solid var(--hair);
  align-items: baseline;
}
.row:last-child { border-bottom: 0; }
.row .k { color: var(--accent); font-weight: 700; font-family: var(--mono); }
.row .v { color: var(--muted); font-size: 0.8125rem; line-height: 1.65; }
@media (max-width: 660px) {
  .row { grid-template-columns: 1fr; gap: 0.25rem; }
  .row .st { justify-self: start; }
}

.st {
  font-family: var(--mono);
  font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; white-space: nowrap;
  padding: 0.1rem 0.45rem; border: 1px solid currentColor;
}
.st-ok { color: var(--accent); background: var(--accent-bg); }
.st-wip { color: var(--warn); background: var(--warn-bg); }

/* ---------------- figures ---------------- */
.figures {
  display: grid; gap: 1px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  background: var(--hair); border: 1px solid var(--hair);
  margin-bottom: 1.25rem;
}
.figure { background: var(--surface); padding: 1.15rem 1.25rem; display: grid; gap: 0.1rem; }
.figure b { font-size: 1.75rem; font-weight: 800; letter-spacing: -0.05em; line-height: 1.1; font-variant-numeric: tabular-nums; }
.figure span { font-size: 0.6875rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); }

/* ---------------- key / value table ---------------- */
.kv { border-top: 1px solid var(--hair); margin: 1.25rem 0 0; }
.kv > div {
  display: grid; grid-template-columns: minmax(0, 11rem) minmax(0, 1fr);
  gap: 0.25rem 1.75rem; padding-block: 0.85rem;
  border-bottom: 1px solid var(--hair);
}
.kv dt { color: var(--faint); font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase; padding-top: 0.25rem; }
.kv dd { margin: 0; font-size: 0.8125rem; }
.kv dd em { font-style: normal; color: var(--muted); }
@media (max-width: 660px) { .kv > div { grid-template-columns: 1fr; } }

/* ---------------- notice ---------------- */
.notice {
  border: 1px solid var(--hair);
  border-left: 3px solid var(--warn);
  background: var(--surface);
  padding: 1.1rem 1.25rem;
  display: grid; gap: 0.45rem;
  margin-bottom: 1.5rem;
}
.notice .tag { font-family: var(--mono); font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--warn); }
.notice p { color: var(--muted); font-size: 0.8125rem; max-width: 72ch; }

/* ---------------- form ---------------- */
.split { display: grid; gap: clamp(2rem, 5vw, 3.25rem); grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: start; }
@media (max-width: 800px) { .split { grid-template-columns: 1fr; } }
form { display: grid; gap: 0.9rem; }
.field { display: grid; gap: 0.3rem; }
.field label { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint); }
input, textarea, select {
  font-size: 0.8125rem;
  background: var(--raised); color: var(--ink);
  border: 1px solid var(--hair); border-radius: 0;
  padding: 0.6rem 0.7rem; width: 100%;
}
textarea { min-height: 7.5rem; resize: vertical; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.btn {
  font-family: var(--mono); font-size: 0.8125rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  background: var(--accent); color: var(--ground);
  border: 0; padding: 0.65rem 1.35rem; cursor: pointer; justify-self: start;
}
.btn:hover { filter: brightness(1.12); }
.form-status { font-family: var(--mono); font-size: 0.75rem; color: var(--warn); min-height: 1.3em; }
.form-status[data-ok="1"] { color: var(--accent); }
.form-note { font-family: var(--mono); font-size: 0.75rem; color: var(--faint); }

.block-label { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); margin-bottom: 0.5rem; }
.legal { font-size: 0.75rem; line-height: 1.9; color: var(--muted); }
.legal b { color: var(--ink); font-weight: 700; }
.tag-inline { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--warn); }

/* ---------------- footer ---------------- */
.foot { background: var(--surface); border-top: 2px solid var(--heavy); }
.foot-in { padding-block: clamp(2rem, 4vw, 2.75rem); display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.foot-bottom { border-top: 1px solid var(--hair); }
.foot-bottom-in { padding-block: 1.1rem; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--faint); }

.skip {
  position: absolute; left: -9999px;
  background: var(--accent); color: var(--ground); padding: 0.5rem 1rem; z-index: 100;
}
.skip:focus { left: 0; top: 0; }