/* ============================================================
   AttaID — CEO deck
   Committed dark "registry" look for projection.
   brass = gated · steel = built · patina = earned
   Bodoni Moda / Public Sans / IBM Plex Mono
   Everything scales in container-query units so no slide overflows.
   ============================================================ */

:root {
  --void:   #0C1116;
  --panel:  #141B21;
  --sunk:   #1A232A;
  --line:   #24303A;
  --line-2: #37454F;
  --text:   #E6EBE8;
  --text-2: #B7C1C6;
  --dim:    #8A959B;

  --brass:  #D3A356;  --brass-w: rgba(211,163,86,.12);
  --steel:  #7FADD8;  --steel-w: rgba(127,173,216,.12);
  --patina: #63B49C;  --patina-w: rgba(99,180,156,.12);
  --oxide:  #E0897E;  --oxide-w: rgba(224,137,126,.12);

  --display: "Bodoni Moda", Didot, Georgia, serif;
  --body:    "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0; height: 100%;
  background: var(--void); color: var(--text);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

p, h1, h2, h3, ul, ol, dl, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
b, strong { font-weight: 600; }
i, em { font-style: italic; }

/* ---------- stage ---------- */

.stage {
  position: fixed; inset: 0;
  display: grid; place-items: center;
}

.deck {
  position: relative;
  width: min(100vw, calc(100vh * 16 / 9));
  height: min(100vh, calc(100vw * 9 / 16));
  container-type: size;
  container-name: deck;
  background: var(--void);
  overflow: hidden;
}

.slide {
  position: absolute; inset: 0;
  padding: 7cqh 7cqw;
  display: flex; flex-direction: column; justify-content: center;
  gap: 3.2cqh;
  opacity: 0; visibility: hidden;
  transition: opacity .32s ease;
}
.slide.is-on { opacity: 1; visibility: visible; }

@media (prefers-reduced-motion: reduce) {
  .slide { transition: none; }
}

/* ---------- type scale (container units) ---------- */

.kicker {
  font-family: var(--mono);
  font-size: 1.15cqw; letter-spacing: .18em; text-transform: uppercase;
  color: var(--dim);
}
.kicker b { color: var(--brass); font-weight: 600; }

.h1 {
  font-family: var(--display); font-optical-sizing: auto;
  font-size: 6.4cqw; font-weight: 400; line-height: 1.02;
  letter-spacing: -.022em; text-wrap: balance;
}
.h2 {
  font-family: var(--display); font-optical-sizing: auto;
  font-size: 4.1cqw; font-weight: 400; line-height: 1.06;
  letter-spacing: -.018em; max-width: 21ch; text-wrap: balance;
}
.h3 {
  font-family: var(--display); font-optical-sizing: auto;
  font-size: 2.1cqw; font-weight: 500; line-height: 1.18;
  letter-spacing: -.01em;
}
.lead {
  font-size: 1.72cqw; line-height: 1.5; color: var(--text-2);
  max-width: 52ch; font-weight: 350;
}
.body { font-size: 1.42cqw; line-height: 1.52; color: var(--text-2); font-weight: 350; }
.small { font-size: 1.2cqw; line-height: 1.5; color: var(--dim); }
.mono { font-family: var(--mono); font-size: 1.15cqw; letter-spacing: .02em; }

.hl-brass  { color: var(--brass); }
.hl-steel  { color: var(--steel); }
.hl-patina { color: var(--patina); }
.hl-oxide  { color: var(--oxide); }
.text-1    { color: var(--text); }

/* ---------- title slide ---------- */

.s-title { justify-content: center; gap: 2.4cqh; }
.s-title .rule { width: 8cqw; height: 2px; background: var(--brass); }
.s-title .sub {
  font-family: var(--mono); font-size: 1.35cqw;
  letter-spacing: .1em; color: var(--dim); text-transform: uppercase;
}

/* ---------- layouts ---------- */

.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4cqw;
  align-items: start;
}
.split--wide { grid-template-columns: 1.15fr 1fr; }

.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2cqw; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5cqw; }

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 3px; padding: 2cqh 1.5cqw;
  display: flex; flex-direction: column; gap: .9cqh;
  --tk: var(--steel); --tk-w: var(--steel-w);
}
.card[data-tone="brass"]  { --tk: var(--brass);  --tk-w: var(--brass-w); }
.card[data-tone="patina"] { --tk: var(--patina); --tk-w: var(--patina-w); }
.card[data-tone="oxide"]  { --tk: var(--oxide);  --tk-w: var(--oxide-w); }
.card--tint { background: var(--tk-w); border-color: transparent; }
.card__tag {
  font-family: var(--mono); font-size: 1.02cqw; font-weight: 600;
  letter-spacing: .13em; text-transform: uppercase; color: var(--tk);
}
.card__n {
  font-family: var(--display); font-size: 2.6cqw; line-height: 1;
  color: var(--tk); font-weight: 400;
}

/* bullet lists */
.list { display: flex; flex-direction: column; gap: 1.3cqh; }
.list li {
  position: relative; padding-left: 1.7cqw;
  font-size: 1.4cqw; line-height: 1.48; color: var(--text-2); font-weight: 350;
}
.list li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: .55cqw; height: .55cqw; border: 1px solid var(--tk, var(--steel));
}
.list[data-tone="brass"]  { --tk: var(--brass); }
.list[data-tone="patina"] { --tk: var(--patina); }
.list[data-tone="oxide"]  { --tk: var(--oxide); }
.list li b { color: var(--text); }

/* rails — a labelled column with a coloured top edge */
.rail-col {
  border-top: 2px solid var(--tk); padding-top: 1.6cqh;
  display: flex; flex-direction: column; gap: 1.4cqh;
  --tk: var(--steel);
}
.rail-col[data-tone="brass"]  { --tk: var(--brass); }
.rail-col[data-tone="patina"] { --tk: var(--patina); }
.rail-col__tag {
  font-family: var(--mono); font-size: 1.05cqw; font-weight: 600;
  letter-spacing: .13em; text-transform: uppercase; color: var(--tk);
}

/* numbered flow */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.2cqw; align-items: stretch; }
.flow__step {
  position: relative; display: flex; flex-direction: column; gap: .8cqh;
  padding-top: 2.4cqh; border-top: 1px solid var(--line-2);
}
.flow__step[data-key="true"] { border-top-color: var(--brass); }
.flow__n {
  position: absolute; top: -1.15cqh; left: 0;
  font-family: var(--mono); font-size: 1.05cqw; font-weight: 600;
  color: var(--dim); background: var(--void); padding-right: .5cqw;
}
.flow__step[data-key="true"] .flow__n { color: var(--brass); }
.flow__t { font-size: 1.32cqw; font-weight: 550; color: var(--text); line-height: 1.3; }
.flow__d { font-size: 1.12cqw; line-height: 1.45; color: var(--dim); font-weight: 350; }

/* callout */
.callout {
  border-left: 3px solid var(--tk, var(--oxide));
  background: var(--tk-w, var(--oxide-w));
  padding: 2cqh 1.8cqw; border-radius: 0 3px 3px 0;
  display: flex; flex-direction: column; gap: 1cqh;
}
.callout[data-tone="brass"] { --tk: var(--brass); --tk-w: var(--brass-w); }

/* stat row */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.5cqw; }
.stat { display: flex; flex-direction: column; gap: .5cqh; }
.stat__v {
  font-family: var(--display); font-optical-sizing: auto;
  font-size: 4.4cqw; line-height: 1; font-weight: 400; color: var(--tk, var(--steel));
}
.stat[data-tone="brass"]  { --tk: var(--brass); }
.stat[data-tone="oxide"]  { --tk: var(--oxide); }
.stat[data-tone="patina"] { --tk: var(--patina); }
.stat__l { font-size: 1.18cqw; color: var(--dim); line-height: 1.4; }

/* table */
.tbl { width: 100%; border-collapse: collapse; font-size: 1.28cqw; }
.tbl th {
  text-align: left; font-family: var(--mono); font-size: 1.02cqw; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; color: var(--dim);
  padding: 0 1.4cqw .9cqh 0; border-bottom: 1px solid var(--line-2);
}
.tbl td {
  text-align: left; vertical-align: top; padding: 1.1cqh 1.4cqw 1.1cqh 0;
  border-bottom: 1px solid var(--line); color: var(--text-2); line-height: 1.45; font-weight: 350;
}
.tbl td:first-child { color: var(--text); font-weight: 550; white-space: nowrap; }
.tbl td:last-child, .tbl th:last-child { padding-right: 0; }

/* timeline (mini) */
.tl { display: flex; flex-direction: column; gap: 1.1cqh; }
.tl__months, .tl__row { display: grid; grid-template-columns: 8cqw repeat(8, 1fr) 1.6fr; align-items: center; }
.tl__months span { font-family: var(--mono); font-size: .95cqw; color: var(--dim); letter-spacing: .08em; }
.tl__name {
  font-family: var(--mono); font-size: 1cqw; font-weight: 600;
  letter-spacing: .11em; text-transform: uppercase; color: var(--tk);
}
.tl__group { --tk: var(--steel); display: flex; flex-direction: column; gap: .6cqh; padding: 1.1cqh 0; border-top: 1px solid var(--line); }
.tl__group[data-tone="brass"] { --tk: var(--brass); }
.tl__bar {
  grid-column: var(--from) / var(--to);
  background: var(--tk-w, var(--steel-w)); color: var(--tk);
  border-left: 2px solid var(--tk); border-radius: 0 2px 2px 0;
  padding: .7cqh .7cqw; margin-right: .3cqw;
  font-size: 1.02cqw; line-height: 1.25; overflow-wrap: anywhere;
}
.tl__group[data-tone="brass"] .tl__bar { --tk-w: var(--brass-w); }
.tl__bar--endless {
  margin-right: 0; border-radius: 0;
  -webkit-mask-image: linear-gradient(to right, #000 74%, transparent 100%);
          mask-image: linear-gradient(to right, #000 74%, transparent 100%);
}
.tl__bar--ghost { background: none; border-left-style: dotted; color: var(--dim); }
.tl__bar--gated { background: none; border: 1px dashed var(--tk); border-radius: 2px; }

/* diagram */
.diagram { width: 100%; display: block; }
.diagram text { font-family: var(--mono); fill: var(--dim); }
.diagram .dg-label { font-size: 11px; letter-spacing: .06em; }
.diagram .dg-name { font-family: var(--body); font-size: 14px; fill: var(--text); font-weight: 500; }
.diagram .dg-sub  { font-size: 10.5px; fill: var(--dim); }
.diagram .dg-box  { fill: var(--panel); stroke: var(--line-2); }
.diagram .dg-box--brass { stroke: var(--brass); }
.diagram .dg-box--steel { stroke: var(--steel); }
.diagram .dg-line { stroke: var(--line-2); stroke-width: 1.5; fill: none; }
.diagram .dg-line--live { stroke: var(--brass); }

/* ---------- chrome ---------- */

.chrome {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: flex; align-items: center; justify-content: space-between; gap: 2cqw;
  padding: 0 7cqw 2.6cqh;
  font-family: var(--mono); font-size: 1.02cqw; color: var(--dim);
  pointer-events: none;
}
.chrome__id { letter-spacing: .16em; text-transform: uppercase; }
.chrome__n {
  font-variant-numeric: tabular-nums; letter-spacing: .1em;
  margin-right: .6cqw;
}

.progress {
  position: absolute; left: 0; bottom: 0; height: 2px;
  background: var(--brass); width: 0;
  transition: width .32s ease;
}
@media (prefers-reduced-motion: reduce) { .progress { transition: none; } }

.nav {
  display: flex; align-items: center; gap: .5cqw;
  pointer-events: auto;
}
.nav button {
  width: 3cqw; height: 3cqw; min-width: 26px; min-height: 26px;
  background: none; border: 1px solid var(--line-2); border-radius: 2px;
  color: var(--dim); cursor: pointer; font-size: 1.2cqw; line-height: 1;
  display: grid; place-items: center;
  transition: color .18s ease, border-color .18s ease;
}
.nav button:hover:not(:disabled) { color: var(--text); border-color: var(--text-2); }
.nav button:disabled { opacity: .3; cursor: default; }
.nav button:focus-visible { outline: 2px solid var(--brass); outline-offset: 2px; }

/* ---------- small screens: unlock the letterbox ---------- */

@media (max-aspect-ratio: 4/5), (max-width: 700px) {
  html, body { overflow: auto; }
  .stage { position: static; display: block; }
  .deck { width: 100%; height: auto; container-type: inline-size; }
  .slide {
    position: static; opacity: 1; visibility: visible;
    min-height: auto; padding: 8vw 6vw;
    border-bottom: 1px solid var(--line);
  }
  .h1 { font-size: 11cqw; }
  .h2 { font-size: 7.4cqw; }
  .h3 { font-size: 4.4cqw; }
  .lead { font-size: 4cqw; }
  .body, .list li { font-size: 3.5cqw; }
  .small, .mono, .kicker { font-size: 3cqw; }
  .flow, .grid3, .grid4, .split { grid-template-columns: 1fr; gap: 4vw; }
  .stats { grid-template-columns: 1fr; gap: 4vw; }
  .stat__v { font-size: 12cqw; }
  .tbl { font-size: 3.2cqw; }
  .tbl th { font-size: 2.6cqw; }
  .chrome, .progress { display: none; }
  .tl__months, .tl__row { grid-template-columns: 16cqw repeat(8, 1fr) 1.6fr; }
  .tl__bar, .tl__name, .tl__months span { font-size: 2.1cqw; }
}