/* SLIDE 13 · SpaceX RUD — title + comparison (2 stages) */

.slide-13 { flex-direction: column; }

.slide-13 .stage-13 {
  display: flex; flex-direction: column;
  align-items: center;
  max-width: 1100px; width: 100%;
  gap: 6vh;
}

.slide-13 .eyebrow {
  font-family: var(--font-mono);
  font-size: 10px; font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--paper-ghost);
  text-transform: uppercase;
  display: flex; gap: 10px;
  opacity: 0;
}
.slide-13 .eyebrow .sep { opacity: 0.5; }
.slide-13.started .eyebrow { animation: s13-fade 700ms var(--ease-out-quart) 300ms forwards; }

.slide-13 .rud-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  transition: transform 700ms var(--ease-out-quart);
}

.slide-13 .rud {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-weight: 900;
  font-variation-settings: "opsz" 144, "wght" 900;
  font-size: clamp(5rem, 14vw, 13rem);
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: var(--accent);
  opacity: 0;
  transform: translateY(18px) scale(0.95);
  transition: font-size 700ms var(--ease-out-quart);
}
.slide-13.started .rud {
  /* single animation combining entry + shake in sequence.
     0–40%  : enter (fade + lift + scale)
     40–100%: shake (translateX wobble) settling at center */
  animation: s13-rudEnterShake 1800ms var(--ease-out-quart) 700ms forwards;
}
@keyframes s13-rudEnterShake {
  0%   { opacity: 0; transform: translateY(18px) scale(0.95); }
  35%  { opacity: 1; transform: translateY(0)    scale(1); }
  45%  { transform: translateX(-4px) scale(1); }
  55%  { transform: translateX(5px)  scale(1); }
  65%  { transform: translateX(-3px) scale(1); }
  75%  { transform: translateX(3px)  scale(1); }
  85%  { transform: translateX(-1px) scale(1); }
  100% { opacity: 1; transform: translateX(0) scale(1); }
}

.slide-13 .rud-full {
  font-family: var(--font-mono);
  font-size: clamp(12px, 1.4vw, 16px);
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--paper-dim);
  opacity: 0;
}
.slide-13.started .rud-full { animation: s13-fade 800ms var(--ease-out-quart) 1500ms forwards; }

.slide-13 .rud-subtext {
  font-family: var(--font-display);
  font-weight: 400;
  font-style: italic;
  font-variation-settings: "opsz" 48;
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--paper);
  opacity: 0;
  margin-top: 22px;
}
.slide-13.started .rud-subtext { animation: s13-fade 900ms var(--ease-out-quart) 2100ms forwards; }

/* shrink title when comparison is revealed */
.slide-13.revealed .rud { font-size: clamp(2.5rem, 6vw, 4.5rem); }
.slide-13.revealed .rud-subtext { display: none; }

/* ---------- comparison table ---------- */
.slide-13 .compare-block {
  opacity: 0;
  transform: translateY(18px);
  pointer-events: none;
  width: 100%;
  max-width: 800px;
  max-height: 0;
  overflow: hidden;
  transition: opacity 700ms var(--ease-out-quart),
              transform 700ms var(--ease-out-quart),
              max-height 900ms var(--ease-out-quart);
}
.slide-13.revealed .compare-block {
  opacity: 1;
  transform: translateY(0);
  max-height: 900px;
  transition-delay: 300ms;
}

.slide-13 .compare {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 0;
  width: 100%;
}

.slide-13 .c-row {
  display: contents;
}

.slide-13 .c-row .c-cell {
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: clamp(12px, 1.2vw, 15px);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
}

.slide-13 .c-row.c-head .c-cell {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 1.8vw, 1.5rem);
  color: var(--paper);
  text-transform: none;
  letter-spacing: -0.01em;
  border-bottom: 1px solid var(--paper-ghost);
}

.slide-13 .c-label {
  color: var(--paper-dim);
  font-size: 11px !important;
}

.slide-13 .c-col-starship { color: var(--paper); }
.slide-13 .c-col-sls { color: var(--paper-dim); }

.slide-13 .c-col-starship.highlight {
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.2vw, 1.8rem);
  text-transform: none;
  letter-spacing: -0.02em;
}

.slide-13 .c-col-sls {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1rem, 1.6vw, 1.4rem);
  text-transform: none;
  letter-spacing: -0.01em;
}

/* budget bars — physical length representation */
.slide-13 .budget-bars {
  margin-top: 3vh;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.slide-13 .bb-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 16px;
  align-items: center;
}
.slide-13 .bb-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--paper-dim);
}
.slide-13 .bb-track {
  height: 10px;
  background: transparent;
  border: 1px solid var(--paper-ghost);
  border-radius: 2px;
  overflow: hidden;
}
.slide-13 .bb-fill {
  height: 100%;
  width: 0%;
  transition: width 1400ms var(--ease-out-quart);
}
/* SLS is our 100% reference ($23B). Starship is $3B = 13%. */
.slide-13 .bb-starship { background: var(--accent); }
.slide-13 .bb-sls      { background: var(--paper-dim); }
.slide-13.revealed .bb-starship { width: 13%; transition-delay: 1000ms; }
.slide-13.revealed .bb-sls      { width: 100%; transition-delay: 700ms; }

@keyframes s13-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes s13-rudEnter {
  from { opacity: 0; transform: translateY(18px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}