/* ============================================================
   DEVS WILL HAVE NOTHING TO EAT — Tech Meetup #43 — Jan Mikeš
   High-contrast terminal deck. No build step, no dependencies.
   ============================================================ */

:root {
  --bg:      #0a0c0d;
  --bg-soft: #11161800;
  --panel:   #101618;
  --fg:      #e9ecea;
  --dim:     #74827d;
  --green:   #4ff08c;
  --amber:   #ffc14d;
  --red:     #ff6b5e;
  --line:    #202829;
  --fg-soft: #cfd6d2;   /* quoted prompt text: softer than --fg, still readable */
  --overlay: #060809;   /* notes / help / jump backdrops */
  --overlay-fg: #c6cfca;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Monaco,
          "Cascadia Mono", "Roboto Mono", Consolas, monospace;
}

/* Root font-size scales with BOTH viewport axes so the deck reads
   correctly on any projector aspect ratio, not just 16:9. */
html {
  font-size: clamp(13px, calc(0.5vw + 0.95vh), 26px);
  background: var(--bg);
}

/* Light theme. Same token names, so every rule below works unchanged.
   Accents are darkened: the dark-mode green/amber fail contrast on a light ground. */
body.light {
  --bg:      #f5f3ee;
  --panel:   #e7e4db;
  --fg:      #14181a;
  --dim:     #5c6560;
  --green:   #06703a;
  --amber:   #8a5200;
  --red:     #b3261e;
  --line:    #d6d2c7;
  --fg-soft: #2f3639;
  --overlay: #ffffff;
  --overlay-fg: #2f3639;
}
html.light { background: #f5f3ee; }

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 1rem;
  line-height: 1.5;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---------- slide frame ---------- */

.deck { position: fixed; inset: 0; }

.slide {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  justify-content: center;
  padding: 5vh 6vw;
  gap: 1.4rem;
  overflow-y: auto;
  overflow-x: hidden;
}

.slide.is-active {
  display: flex;
  animation: rise 170ms ease-out;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(0.7rem); }
  to   { opacity: 1; transform: none; }
}

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

/* Speaker-note source: read by deck.js for the N overlay, never displayed. */
.notes-src { display: none; }

/* A title that must exist for the jump index but must not be drawn.
   display:none would hide it from deck.js's label lookup too. */
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

/* ---------- type ---------- */

h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -0.02em; }

h1 { font-size: 4.6rem; line-height: 1.02; }
h2 { font-size: 3.3rem; line-height: 1.08; }
h3 { font-size: 1.5rem; line-height: 1.2; color: var(--dim); font-weight: 500; }

p  { margin: 0; font-size: 1.35rem; }

.sub     { color: var(--dim); font-size: 1.45rem; line-height: 1.4; }
.byline  { color: var(--dim); font-size: 1.1rem; letter-spacing: 0.06em; }
.small   { font-size: 1.05rem; color: var(--dim); }
.small.bright { color: var(--fg); }   /* supporting line that carries the evidence */
.tight   { line-height: 1.25; }

mark {
  background: none;
  color: var(--green);
  font-weight: 700;
}
mark.warn { color: var(--amber); }
mark.bad  { color: var(--red); }

.dim  { color: var(--dim); }
.gr   { color: var(--green); }
.am   { color: var(--amber); }
.rd   { color: var(--red); }

/* ---------- terminal block ---------- */

.term {
  font-family: var(--mono);
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--green);
  border-radius: 3px;
  padding: 1.5rem 1.8rem;
  margin: 0;
  font-size: 1.5rem;
  line-height: 1.65;
  white-space: pre;
  overflow-x: auto;
  color: var(--fg);
  tab-size: 2;
}

.term.quote  { border-left-color: var(--dim); color: var(--fg-soft); }
.term.warn   { border-left-color: var(--amber); }
.term.bad    { border-left-color: var(--red); }
.term.plain  { background: none; border: none; padding: 0; }
.term.xl     { font-size: 2rem; }
.term.sm     { font-size: 1.2rem; }

.prompt::before { content: "$ "; color: var(--green); }

/* ---------- statement slides ---------- */

.s-statement { justify-content: center; }
.s-statement h1 { font-size: 5.4rem; }
.s-statement .after { color: var(--dim); font-size: 1.5rem; margin-top: 1rem; }

.h1-mid { font-size: 3.5rem; }
.mt { margin-top: 2rem; }

/* ---------- title / closing ---------- */

.title-grid {
  display: flex; align-items: center; gap: 5vw; width: 100%;
}
.title-grid > div { flex: 1 1 auto; min-width: 0; }
/* The source files are already square, so the circle needs no aspect-ratio
   or object-fit — and that combination stopped Chrome painting the image. */
.portrait {
  flex: 0 0 auto;
  width: 28vw; max-width: 20rem; height: auto;
  border-radius: 50%;
  border: 3px solid var(--line);
}

.s-title h1 { font-size: 6.2rem; letter-spacing: -0.04em; }
.s-title .sub { font-size: 1.8rem; max-width: 44ch; }
.s-title .rule-line {
  width: 7rem; height: 3px; background: var(--green); margin: 0.6rem 0;
}

.s-closing { align-items: flex-start; }
.closing-grid {
  display: flex; align-items: center; gap: 4rem; width: 100%; flex-wrap: wrap;
}
.qr {
  width: 15rem; height: 15rem; flex: none;
  background: #fff; padding: 0.5rem; border-radius: 6px;
}
.qr img { width: 100%; height: 100%; display: block; }
.url {
  font-size: 2.6rem; font-weight: 700; color: var(--green);
  word-break: break-all; line-height: 1.15;
}

/* ---------- numbers slide ---------- */

.numbers { display: grid; gap: 1rem; font-size: 2.6rem; line-height: 1.2; }
/* flex row rather than an inline-block prefix, so a label that wraps stays
   in its own column instead of falling back under the number */
.numbers div { display: flex; gap: 1.2rem; align-items: baseline; }
.numbers .n { color: var(--green); font-weight: 700;
              min-width: 3ch; text-align: right; flex: none; }

/* ---------- poll ladder ---------- */

.ladder { display: grid; gap: 0.75rem; font-size: 2.1rem; }
.ladder li { list-style: none; }
.ladder .last { color: var(--green); font-weight: 700; font-size: 2.6rem; }
ul.ladder { margin: 0; padding: 0; }

/* ---------- checklist / X list ---------- */

.xlist { margin: 0; padding: 0; display: grid; gap: 0.8rem; font-size: 1.9rem; }
.xlist li { list-style: none; }
.xlist .x { color: var(--red); margin-right: 1rem; font-weight: 700; }

.deflist { display: grid; gap: 1.1rem; font-size: 1.5rem; }
.deflist .k {
  color: var(--amber); font-weight: 700; display: inline-block;
  min-width: 20ch;   /* fits the longest key so all values share a column */
}

/* ---------- rule slides (the fly-by) ---------- */

.s-rule { justify-content: center; gap: 1.8rem; }
.s-rule h2 { font-size: 3.6rem; max-width: 24ch; }
.s-rule .why {
  font-size: 1.65rem; color: var(--fg);
}
.s-rule .why .arrow { color: var(--green); font-weight: 700; margin-right: 0.6rem; }
.rule-sub { font-size: 1.15rem; color: var(--dim); margin-top: -0.6rem; }
.diagram .note { color: var(--dim); }

/* Flight/act labels are not shown on the slides. They stay in the markup
   because the jump list reads .act for its right-hand column and for the
   CUT IF LONG flag on slide 22. */
.marker, .act { display: none; }

/* ---------- diagram ---------- */

.diagram {
  font-size: 1.55rem; line-height: 1.5; white-space: pre;
  color: var(--fg);
  overflow-x: auto; max-width: 100%;
}
.diagram .note { color: var(--dim); }

/* ---------- full-bleed image slide ----------
   Natural dimensions + flex centring, deliberately NOT object-fit + height:auto:
   that combination stopped Chrome painting the image in the previous deck. */

.s-image { padding: 3vh 3vw; justify-content: center; align-items: center; gap: 1.2rem; }
.s-image img {
  max-width: 100%; max-height: 82vh;
  width: auto; height: auto; display: block;
}
/* Stacked, not overlaid — the meme carries its own burned-in caption at the
   bottom of the frame, and an absolutely positioned one lands on top of it. */
.s-image figcaption {
  text-align: center; color: var(--dim); font-size: 1.05rem;
}

/* ---------- compare: "by hand" vs "platform" ---------- */

.compare { display: grid; grid-template-columns: 1fr auto 1fr; gap: 0.55rem 1.4rem;
           font-size: 1.45rem; line-height: 1.3; align-items: baseline; }
.compare .l { color: var(--fg-soft); text-align: right; }
.compare .m { color: var(--dim); }
.compare .r { color: var(--fg); font-weight: 700; }
.compare .hd { color: var(--dim); font-size: 1rem; letter-spacing: 0.16em;
               text-transform: uppercase; font-weight: 500; }
.compare .hd.r { color: var(--green); }

/* ---------- the operator transform ---------- */

.morph { display: grid; gap: 0.4rem; justify-items: center; text-align: center;
         font-size: 2.8rem; font-weight: 700; line-height: 1.15; }
.morph .from { color: var(--dim); }
.morph .to   { color: var(--green); }
.morph .bar  { color: var(--dim); font-size: 2rem; font-weight: 400; }

/* ---------- discussion prompts ---------- */

.asks { display: grid; gap: 1.1rem; font-size: 2rem; margin: 0; padding: 0; }
.asks li { list-style: none; display: flex; gap: 1.2rem; align-items: baseline; }
.asks .n { color: var(--green); font-weight: 700; flex: none; }

/* ---------- copy button ---------- */

.copy-wrap { display: flex; align-items: center; gap: 1.2rem; margin-top: 0.4rem; }
.copy-btn {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--bg);
  background: var(--green);
  border: none;
  border-radius: 3px;
  padding: 0.7rem 1.4rem;
  cursor: pointer;
  letter-spacing: 0.04em;
}
.copy-btn:hover { filter: brightness(1.12); }
.copy-btn.done { background: var(--amber); }

a { color: var(--green); }
a.quiet { color: var(--dim); text-decoration: none; }
a.quiet:hover { color: var(--green); }

/* ---------- chrome: progress, counter, notes, overview ---------- */

.progress {
  position: fixed; bottom: 0; left: 0; height: 3px;
  background: var(--green); width: 0;
  transition: width 170ms ease-out; z-index: 40;
}

.counter {
  position: fixed; bottom: 3.2vh; right: 6vw;
  font-size: 0.95rem; color: var(--dim); z-index: 40;
  letter-spacing: 0.1em;
}
.counter .cur { color: var(--fg); }

.notes {
  position: fixed; left: 0; right: 0; bottom: 0;
  max-height: 42vh; overflow-y: auto;
  background: var(--overlay);
  border-top: 2px solid var(--amber);
  padding: 1.4rem 6vw 2rem;
  font-size: 1.1rem; line-height: 1.55; color: var(--overlay-fg);
  z-index: 50; display: none;
}
.notes.is-open { display: block; }
.notes b, .notes strong { color: var(--amber); }
.notes .hdr {
  color: var(--amber); font-size: 0.85rem; letter-spacing: 0.16em;
  text-transform: uppercase; margin-bottom: 0.6rem;
}

.help {
  position: fixed; inset: 0; background: var(--overlay);
  z-index: 60; display: none; padding: 8vh 8vw;
  font-size: 1.3rem; line-height: 2;
}
.help.is-open { display: block; }
.help { color: var(--overlay-fg); }
.help kbd {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 3px; padding: 0.15em 0.6em; color: var(--green);
  font-family: var(--mono); font-weight: 700; margin-right: 0.8rem;
  display: inline-block; min-width: 9ch; text-align: center;
}

/* jump list (press O) — a titled index beats unreadable thumbnails,
   and slide type is rem-based so it would not scale into one anyway. */
.jump {
  position: fixed; inset: 0; z-index: 55;
  background: var(--overlay);
  padding: 6vh 8vw; overflow-y: auto;
  display: none;
}
.jump.is-open { display: block; }
.jump h4 {
  margin: 0 0 1.5rem; font-size: 0.9rem; color: var(--dim);
  letter-spacing: 0.18em; text-transform: uppercase; font-weight: 500;
}
.jump ol { margin: 0; padding: 0; list-style: none;
           columns: 2; column-gap: 4rem; }
.jump li {
  display: flex; gap: 1rem; align-items: baseline;
  padding: 0.35rem 0.6rem; margin: 0 0 0.15rem;
  cursor: pointer; border-radius: 3px; font-size: 1.05rem;
  break-inside: avoid;
}
.jump li:hover { background: var(--panel); }
.jump li.cur { background: var(--panel); box-shadow: inset 3px 0 0 var(--green); }
.jump li.cur .t { color: var(--green); }
.jump .i { color: var(--dim); min-width: 2.5ch; text-align: right; flex: none; }
.jump .t { color: var(--overlay-fg); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.jump .a { color: var(--dim); font-size: 0.8rem; margin-left: auto; flex: none; }


/* ---------- touch / small screens ----------
   Two problems this solves: slide type sized for a projector overflows a
   phone, and "click anywhere to advance" gives no way back and no hint that
   swiping works. So: a smaller scale, and real buttons. */

.tapnav {
  position: fixed; bottom: 0; left: 0; right: 0;
  display: none; justify-content: space-between;
  padding: 0.6rem 0.9rem 1.1rem;
  z-index: 45; pointer-events: none;
}
.tapnav button {
  pointer-events: auto;
  font-family: var(--mono); font-size: 1.5rem; line-height: 1;
  color: var(--fg); background: var(--panel);
  border: 1px solid var(--line); border-radius: 999px;
  width: 3rem; height: 3rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.tapnav button:disabled { opacity: 0.3; }
.tapnav button:active { background: var(--green); color: var(--bg); }

@media (pointer: coarse), (max-width: 860px) {
  .tapnav { display: flex; }
  .counter { bottom: auto; top: 1.2rem; right: 1.2rem; }
  .slide { padding: 4vh 5vw 6rem; gap: 1rem; }

  h1 { font-size: 2.3rem; }
  h2 { font-size: 1.9rem; }
  h3 { font-size: 1rem; }
  p  { font-size: 1rem; }

  .sub { font-size: 1.05rem; }
  .byline { font-size: 0.8rem; }
  .small { font-size: 0.85rem; }

  .title-grid { flex-direction: column-reverse; align-items: flex-start; gap: 1.5rem; }
  .portrait { width: 8rem; }
  .s-title h1 { font-size: 2.9rem; }
  .s-title .sub { font-size: 1.15rem; }
  .s-statement h1 { font-size: 2.4rem; }
  .s-statement .after { font-size: 1rem; }
  .h1-mid { font-size: 1.9rem; }
  .mt { margin-top: 1.2rem; }

  .term { font-size: 0.85rem; padding: 1rem 1.1rem; line-height: 1.55; }
  .term.xl { font-size: 0.95rem; }
  /* .sm is a two-class selector, so it outranks the .term rule above and
     would otherwise render LARGER than the mobile base. */
  .term.sm { font-size: 0.72rem; }
  .diagram { font-size: 0.7rem; }

  .numbers { font-size: 1.5rem; }
  .numbers div { gap: 0.7rem; }
  .numbers .n { min-width: 2.5ch; }
  .ladder { font-size: 1.25rem; gap: 0.5rem; }
  .ladder .last { font-size: 1.5rem; }
  .xlist { font-size: 1.1rem; gap: 0.5rem; }
  .deflist { font-size: 1rem; gap: 0.8rem; }
  .deflist .k { display: block; min-width: 0; }

  .s-rule h2 { font-size: 2rem; }
  .s-rule .why { font-size: 1.05rem; }
  .rule-sub { font-size: 0.9rem; margin-top: -0.3rem; }
  .s-rule { gap: 1.1rem; }


  .closing-grid { gap: 1.5rem; }
  .qr { width: 9rem; height: 9rem; }
  .url { font-size: 1.5rem; }

  .s-image { padding: 2vh 3vw 5rem; }
  .s-image img { max-height: 74vh; }
  .s-image figcaption { font-size: 0.75rem; }
  .compare { font-size: 0.9rem; gap: 0.35rem 0.7rem; }
  .compare .hd { font-size: 0.7rem; letter-spacing: 0.1em; }
  .morph { font-size: 1.5rem; }
  .morph .bar { font-size: 1.1rem; }
  .asks { font-size: 1.15rem; gap: 0.7rem; }
  .asks .n { }

  .jump { padding: 5vh 5vw; }
  .jump ol { columns: 1; }
  .notes { max-height: 55vh; padding: 1rem 5vw 5rem; }
}

/* ---------- print / PDF export ---------- */

@media print {
  @page { size: 297mm 167mm; margin: 0; }
  html { font-size: 15px; }
  body { overflow: visible; background: var(--bg); }
  .deck { position: static; }
  .slide {
    position: relative; inset: auto; display: flex !important;
    width: 297mm; height: 167mm; page-break-after: always;
    animation: none; break-inside: avoid;
  }
  .progress, .counter, .notes, .help, .copy-btn,
  .tapnav, .jump { display: none !important; }
  * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}