/* ============================================================
   N7.42 — slides
   Light editorial. Fraunces + JetBrains Mono. Ivory + ink + sepia.
   ============================================================ */

:root {
  --bg: #f6f2e9;            /* ivoire chaud */
  --bg-soft: #ede7d6;       /* ivoire un cran plus sombre */
  --line: #c9c0a8;
  --fg: #14110c;            /* encre */
  --fg-mute: #6b6450;
  --accent: #8b5a2b;        /* sépia foncé */
  --accent-soft: rgba(139, 90, 43, 0.10);
  --good: #4a7a3a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; background: var(--bg); color: var(--fg);
             font-family: 'Fraunces', 'Times New Roman', serif;
             font-feature-settings: 'ss01', 'ss02';
             overflow: hidden; }

code, .mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }

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

.slide {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity .45s ease;
  padding: 5vh 6vw;
}
.slide.active { opacity: 1; pointer-events: auto; }

.frame {
  width: 100%; max-width: 1280px; height: 100%;
  display: flex; flex-direction: column; justify-content: center;
}

.frame.two-col {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4vw;
  align-items: stretch;
}
.frame.two-col .col { display: flex; flex-direction: column; justify-content: center; }

/* ---------- typography ---------- */

h1, h2 { font-weight: 300; letter-spacing: -0.02em; line-height: 1.05; }
h1 { font-size: clamp(56px, 8vw, 128px); }
h2 { font-size: clamp(30px, 3.6vw, 52px); margin-bottom: 28px; }
h2 em { font-style: italic; color: var(--accent); }

.eyebrow, .kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--fg-mute); margin-bottom: 16px;
}

.caption {
  margin-top: 14px; color: var(--fg-mute); font-size: 13px;
  font-family: 'JetBrains Mono', monospace; letter-spacing: 0.04em;
}
.caption code { color: var(--fg); }

/* ---------- slide 1 — intro ---------- */

.team {
  font-size: clamp(120px, 18vw, 280px);
  font-weight: 300; line-height: .9;
  margin: 18px 0 28px; color: var(--fg);
}
.team .dot { color: var(--accent); margin: 0 -.04em; }

.track {
  display: flex; align-items: center; gap: 18px;
  font-family: 'JetBrains Mono', monospace; font-size: 14px;
  margin-bottom: 56px; color: var(--fg-mute);
}
.track-tag {
  border: 1px solid var(--accent); color: var(--accent);
  padding: 4px 10px; letter-spacing: 0.12em; text-transform: uppercase;
}
.track-flow .arrow { color: var(--accent); margin: 0 .4em; }

.roster {
  list-style: none; display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 24px; padding-top: 24px; border-top: 1px solid var(--line);
}
.roster li {
  font-size: 18px; font-weight: 400; letter-spacing: -0.005em;
  color: var(--fg);
}

/* ---------- slide 2 — demo + pipeline antoine ---------- */

.demo-line {
  display: flex; align-items: baseline; gap: 18px;
  padding: 12px 0; margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
  font-family: 'JetBrains Mono', monospace;
}
.demo-line-label {
  font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent);
}
.demo-link {
  font-size: 18px; color: var(--fg); text-decoration: none;
  border-bottom: 1px solid var(--accent);
  font-family: 'Fraunces', serif; font-style: italic;
}
.demo-link:hover { color: var(--accent); }
.demo-line-meta {
  margin-left: auto; font-size: 11px; color: var(--fg-mute);
}

.graph-box {
  flex: 1; min-height: 0; display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--line); border-radius: 4px;
  padding: 14px; margin-bottom: 18px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.graph-img { max-width: 100%; max-height: 100%; object-fit: contain; }

.io { margin-bottom: 4px; }
.io.io-inline { display: flex; gap: 32px; flex-wrap: wrap; margin-bottom: 8px; }
.io-row {
  display: flex; align-items: center; gap: 12px;
  padding: 6px 0;
  font-family: 'JetBrains Mono', monospace; font-size: 13px;
}
.io.io-inline .io-row { padding: 4px 0; border: 0; }
.io-row:not(.io.io-inline > .io-row) { border-bottom: 1px solid var(--line); }
.io-tag {
  color: var(--accent); width: 28px; text-transform: uppercase;
  font-size: 10px; letter-spacing: 0.14em;
}
.io-row code {
  background: var(--accent-soft); padding: 1px 6px; border-radius: 2px;
  color: var(--accent);
}

/* ---------- slide 3 — pipeline mvp ---------- */

.skills-strip {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px;
  margin: 8px 0 36px;
}
.skill {
  border: 1px solid var(--line); padding: 14px 12px;
  background: #fff; position: relative;
  font-size: 13px; color: var(--fg);
  display: flex; flex-direction: column; gap: 8px;
  text-align: left; transition: border-color .2s, transform .2s;
}
.skill:hover { border-color: var(--accent); transform: translateY(-2px); }
.skill .num {
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  color: var(--accent); letter-spacing: 0.08em;
}

.zoom {
  border-left: 2px solid var(--accent);
  padding: 4px 0 4px 26px; margin: 8px 0 28px;
}
.zoom-title {
  font-size: 22px; font-style: italic; color: var(--fg);
  margin-bottom: 18px;
}
.case { display: flex; flex-direction: column; gap: 12px; }
.case-row {
  display: flex; gap: 16px; align-items: baseline;
  font-size: 16px; line-height: 1.5;
}
.case-tag {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg-mute); width: 64px; flex-shrink: 0;
  padding-top: 4px;
}
.case-tag.fanout { color: var(--accent); }
.case-tag.merge  { color: var(--good); }
.case-row code {
  background: var(--accent-soft); padding: 1px 6px; border-radius: 3px;
  font-size: 13px; color: var(--accent);
}
.zoom-pun {
  margin-top: 16px; font-size: 17px; color: var(--fg-mute);
  font-style: italic;
}
.zoom-pun strong { color: var(--accent); font-weight: 400; font-style: normal; }

.badge {
  align-self: center; margin-top: auto;
  padding: 12px 28px; border: 1px solid var(--accent);
  color: var(--fg); font-size: 16px; letter-spacing: 0.04em;
  background: var(--accent-soft);
}
.badge strong { color: var(--accent); font-weight: 600; }

/* ---------- slide 4 — iterations ---------- */

.roles { display: flex; flex-direction: column; gap: 18px; margin: 12px 0 26px; }
.role {
  border-left: 2px solid var(--line);
  padding: 6px 0 6px 18px;
  transition: border-color .2s;
}
.role:hover { border-color: var(--accent); }
.role-name {
  font-size: 22px; font-weight: 400; color: var(--fg);
  letter-spacing: -0.01em; margin-bottom: 2px;
}
.role-desc { font-size: 13px; color: var(--fg-mute); }

.axes {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px;
}
.axes span {
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  border: 1px solid var(--line); padding: 4px 10px;
  letter-spacing: 0.08em; color: var(--fg-mute); background: #fff;
}

.grid-frame-wrap {
  flex: 1; min-height: 0;
  border: 1px solid var(--line); border-radius: 4px;
  overflow: hidden; background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}
.grid-frame { width: 100%; height: 100%; border: 0; display: block; }

/* ---------- slide 5 — merci + sources ---------- */

.thanks {
  text-align: center; font-size: clamp(80px, 12vw, 180px);
  margin-bottom: 56px; font-style: italic;
}
.sources {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
  flex: 1;
}
.src-col {
  border-top: 1px solid var(--accent);
  padding-top: 16px;
}
.src-title {
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px;
}
.src-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.src-col li { font-size: 13px; line-height: 1.5; color: var(--fg-mute); }
.src-col li strong { color: var(--fg); font-weight: 500; }
.src-col li code {
  font-size: 11px; color: var(--accent);
  background: var(--accent-soft); padding: 0 4px; border-radius: 2px;
}

.footer {
  margin-top: 48px; text-align: center;
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  letter-spacing: 0.16em; color: var(--fg-mute);
}

/* ---------- nav dots ---------- */

.dots {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 100;
}
.dots button {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--line); border: 0; cursor: pointer;
  padding: 0; transition: background .2s, transform .2s;
}
.dots button:hover { background: var(--fg-mute); }
.dots button.active { background: var(--accent); transform: scale(1.3); }

/* ---------- responsive guard ---------- */

@media (max-width: 900px) {
  .frame.two-col { grid-template-columns: 1fr; gap: 24px; }
  .roster { grid-template-columns: repeat(2, 1fr); }
  .skills-strip { grid-template-columns: repeat(3, 1fr); }
  .sources { grid-template-columns: repeat(2, 1fr); }
}