/* ===== p1uscode deck — minimal technical ===== */
:root {
  --bg: #0a0a0a;
  --bg-alt: #121211;
  --bg-card: #16161a;
  --fg: #e8e8e6;
  --fg-dim: #8a8a86;
  --fg-faint: #4a4a47;
  --rule: #2a2a27;
  --accent: oklch(0.78 0.14 180); /* mint */
  --accent-dim: oklch(0.55 0.10 180);
  --warn: oklch(0.80 0.14 60);   /* amber */
  --danger: oklch(0.72 0.18 25); /* coral */
  --ok: oklch(0.80 0.14 150);    /* green */
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica,
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
}

deck-stage section {
  background: var(--bg);
  color: var(--fg);
  padding: 100px 100px 80px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* --------- type --------- */
.mono {
  font-family: "JetBrains Mono", "SF Mono", Menlo, Consolas, "Courier New", monospace;
  font-feature-settings: normal;
}
.kicker {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 24px;
  letter-spacing: 0.15em;
  color: var(--accent);
  text-transform: uppercase;
  margin: 0 0 28px;
}
.title {
  font-size: 72px;
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 24px;
  text-wrap: pretty;
}
.title-big {
  font-size: 108px;
  line-height: 1.0;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
}
.subtitle {
  font-size: 44px;
  line-height: 1.35;
  color: var(--fg-dim);
  font-weight: 400;
  margin: 0 0 52px;
  text-wrap: pretty;
}
.body {
  font-size: 34px;
  line-height: 1.5;
  color: var(--fg);
  margin: 0 0 28px;
  max-width: 1500px;
  text-wrap: pretty;
}
.small {
  font-size: 28px;
  line-height: 1.55;
  color: var(--fg-dim);
}
.en {
  color: var(--fg-dim);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78em;
  letter-spacing: 0.02em;
  font-weight: 400;
}
.accent { color: var(--accent); }
.warn { color: var(--warn); }
.danger { color: var(--danger); }
.ok { color: var(--ok); }
.dim { color: var(--fg-dim); }
.faint { color: var(--fg-faint); }

/* --------- layout helpers --------- */
.frame-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 22px;
  color: var(--fg-faint);
  letter-spacing: 0.05em;
  margin-bottom: 60px;
}
.frame-header .tag { color: var(--accent); }
.row { display: flex; gap: 48px; }
.col { display: flex; flex-direction: column; }
.grow { flex: 1; }
.center { justify-content: center; align-items: flex-start; }
.vcenter { justify-content: center; }
.hcenter { align-items: center; text-align: center; }
.push-down { margin-top: auto; }

/* --------- code blocks --------- */
.code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 32px 36px;
  font-size: 24px;
  line-height: 1.55;
  color: var(--fg);
  white-space: pre;
  overflow: hidden;
}
.code.big { font-size: 26px; }
.code.small { font-size: 22px; }
.code .c-key { color: var(--accent); }
.code .c-str { color: oklch(0.85 0.11 90); }
.code .c-num { color: oklch(0.78 0.14 60); }
.code .c-com { color: #8a8a86; font-style: italic; }
.code .c-rem { color: var(--fg-faint); }
.code .c-role { color: var(--accent); font-weight: 600; }
.code .c-hi { background: rgba(130, 230, 210, 0.10); display: inline-block; padding: 0 4px; border-radius: 3px; }

/* --------- tables --------- */
.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 28px;
}
.tbl th, .tbl td {
  text-align: left;
  padding: 18px 20px;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.tbl th {
  font-weight: 500;
  color: var(--fg-dim);
  font-size: 22px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--accent-dim);
}
.tbl td .mono { font-size: 0.92em; }
.tbl tr:last-child td { border-bottom: none; }
.tbl .ok { color: var(--ok); font-family: "JetBrains Mono", monospace; }
.tbl .no { color: var(--danger); font-family: "JetBrains Mono", monospace; }
.tbl .mid { color: var(--warn); font-family: "JetBrains Mono", monospace; }

/* --------- cards (for grid layouts) --------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 32px 36px;
}
.card .label {
  font-family: "JetBrains Mono", monospace;
  font-size: 20px;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.card h3 { font-size: 34px; margin: 0 0 16px; font-weight: 600; }
.card p { font-size: 26px; line-height: 1.5; color: var(--fg-dim); margin: 0; }

/* --------- big number --------- */
.bignum {
  font-family: "JetBrains Mono", monospace;
  font-size: 240px;
  line-height: 0.9;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.03em;
}

/* --------- section divider slide --------- */
.section-slide {
  justify-content: center;
}
.section-slide .section-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 34px;
  color: var(--accent);
  letter-spacing: 0.2em;
  margin-bottom: 32px;
}
.section-slide .section-title {
  font-size: 120px;
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
  max-width: 1600px;
}
.section-slide .section-sub {
  margin-top: 44px;
  font-size: 36px;
  color: var(--fg-dim);
  max-width: 1400px;
  line-height: 1.45;
}

/* --------- ascii diagram --------- */
.ascii {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 22px;
  line-height: 1.35;
  color: var(--fg);
  white-space: pre;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 32px 36px;
}

/* --------- list --------- */
ul.clean, ol.clean {
  list-style: none;
  padding: 0;
  margin: 0;
}
ul.clean li, ol.clean li {
  font-size: 32px;
  line-height: 1.5;
  padding: 14px 0;
  color: var(--fg);
  display: flex;
  gap: 20px;
  align-items: baseline;
  border-bottom: 1px solid var(--rule);
}
ul.clean li:last-child, ol.clean li:last-child { border-bottom: none; }
ul.clean li .num {
  font-family: "JetBrains Mono", monospace;
  color: var(--accent);
  font-size: 24px;
  min-width: 48px;
}
ul.clean.compact li, ol.clean.compact li {
  font-size: 24px;
  line-height: 1.4;
  padding: 10px 0;
  gap: 14px;
}
ul.clean.compact li .num { font-size: 18px; min-width: 32px; }

/* --------- quote --------- */
.quote {
  font-size: 54px;
  line-height: 1.3;
  font-weight: 500;
  color: var(--fg);
  max-width: 1500px;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}
.quote::before { content: "❝ "; color: var(--accent); }
.quote-attr {
  margin-top: 36px;
  font-family: "JetBrains Mono", monospace;
  color: var(--fg-dim);
  font-size: 24px;
  letter-spacing: 0.1em;
}

/* --------- progress dots for agenda --------- */
.agenda-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 64px;
}
.agenda-grid .item {
  display: flex;
  gap: 24px;
  font-size: 30px;
  line-height: 1.4;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}
.agenda-grid .item .n {
  font-family: "JetBrains Mono", monospace;
  color: var(--accent);
  font-size: 22px;
  min-width: 56px;
}
.agenda-grid .item .t .en { display: block; font-size: 18px; margin-top: 4px; }

/* --------- title slide --------- */
.title-slide {
  justify-content: center;
  background:
    radial-gradient(ellipse 800px 400px at 20% 20%, rgba(130, 230, 210, 0.06), transparent 60%),
    var(--bg);
}
.title-slide .brand {
  font-family: "JetBrains Mono", monospace;
  font-size: 24px;
  letter-spacing: 0.3em;
  color: var(--accent);
  margin-bottom: 48px;
}
.title-slide .eye {
  font-size: 128px;
  line-height: 1.0;
  font-weight: 700;
  letter-spacing: -0.02em;
  max-width: 1600px;
  margin: 0;
}
.title-slide .eye-sub {
  margin-top: 40px;
  font-size: 40px;
  color: var(--fg-dim);
  max-width: 1400px;
  line-height: 1.35;
}
.title-slide .meta {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  font-family: "JetBrains Mono", monospace;
  font-size: 22px;
  color: var(--fg-faint);
  letter-spacing: 0.08em;
  padding-top: 64px;
  border-top: 1px solid var(--rule);
}

/* --------- terminal blocks --------- */
.term {
  background: #050505;
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 20px 28px 24px;
  font-family: "JetBrains Mono", monospace;
  font-size: 22px;
  line-height: 1.55;
  color: var(--fg);
  white-space: pre;
  overflow: hidden;
}
.term .bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  margin-left: -4px;
}
.term .bar span {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--fg-faint);
}
.term .prompt { color: var(--accent); }
.term .out { color: var(--fg-dim); }

/* --------- 2-col with rule --------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  flex: 1;
}
.split > div { display: flex; flex-direction: column; }
.split .vs {
  position: relative;
}
.split-head {
  font-family: "JetBrains Mono", monospace;
  font-size: 22px;
  letter-spacing: 0.15em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 20px;
}

/* --------- callout / box --------- */
.box {
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 28px 32px;
  background: var(--bg-card);
}
.box.accent { border-color: var(--accent-dim); }

/* --------- 3-col numbered --------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  flex: 1;
}
.step {
  border-left: 2px solid var(--accent-dim);
  padding: 0 0 0 28px;
}
.step .stepn {
  font-family: "JetBrains Mono", monospace;
  font-size: 22px;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.step h4 {
  font-size: 34px;
  margin: 0 0 16px;
  font-weight: 600;
  line-height: 1.2;
}
.step p { font-size: 24px; color: var(--fg-dim); margin: 0; line-height: 1.5; }

/* --------- chips --------- */
.chip {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 20px;
  padding: 4px 12px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  color: var(--fg-dim);
  margin: 2px 4px 2px 0;
}
.chip.on {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: rgba(130, 230, 210, 0.06);
}

/* --------- arrow / direction --------- */
.arrow {
  color: var(--accent);
  font-family: "JetBrains Mono", monospace;
  margin: 0 16px;
}

/* --------- deck-stage slide footer (bottom row: extras left, page right) --------- */
.slide-footer {
  position: absolute;
  left: 48px;
  right: 48px;
  bottom: 28px;
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: "JetBrains Mono", monospace;
  font-size: 18px;
  color: var(--fg-faint);
  letter-spacing: 0.08em;
  pointer-events: none;
  z-index: 5;
}
/* Page number is always the first span — push it to the right edge. */
.slide-footer > span:first-child { margin-left: auto; order: 2; }
.slide-footer > span:not(:first-child) { order: 1; }
.slide-footer .url { color: var(--accent); }
.slide-footer .mono.dim { font-size: 16px; }