.pipe-intro,
.pipe-tokenize,
.pipe-numbers,
.pipe-predict,
.pipe-stream,
.pipe-recap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.pipe-hero-emoji {
  font-size: clamp(48px, 7vw, 86px);
  line-height: 1;
  filter: drop-shadow(0 8px 0 rgba(43, 51, 80, 0.08));
  animation: pipe-bob 2.4s ease-in-out infinite;
}

.pipe-message-flow {
  width: min(100%, 980px);
  display: grid;
  grid-template-columns: 1.2fr auto 1fr auto 1.2fr;
  align-items: center;
  gap: 14px;
  margin: 8px 0 6px;
}

.pipe-bubble,
.pipe-machine,
.pipe-demo-card,
.pipe-number-card,
.pipe-sentence-panel,
.pipe-candidates,
.pipe-phone,
.pipe-recap-card {
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.pipe-bubble {
  padding: 18px;
  font-size: clamp(18px, 2vw, 26px);
  font-weight: 800;
  text-align: left;
}

.pipe-bubble-user {
  border: 4px solid var(--eyes);
}

.pipe-bubble-bot {
  border: 4px solid var(--hands);
}

.pipe-machine {
  padding: 18px 16px;
  border: 4px dashed var(--brain);
  color: var(--ink);
  font-weight: 900;
  font-size: clamp(16px, 1.6vw, 20px);
}

.pipe-flow-arrow,
.pipe-number-arrow {
  color: var(--brand);
  font-size: clamp(30px, 4vw, 52px);
  font-weight: 900;
}

.pipe-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 4px;
}

.pipe-demo-card {
  width: min(100%, 920px);
  padding: 24px;
  border: 4px solid rgba(255, 122, 162, 0.28);
}

.pipe-sentence {
  display: inline-block;
  padding: 16px 20px;
  margin-bottom: 18px;
  border-radius: 16px;
  background: #fff6e9;
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 900;
}

.pipe-token-lane,
.pipe-stream-tokens {
  min-height: 74px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.pipe-token,
.pipe-stream-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 14px;
  border-radius: 999px;
  background: #f4ecff;
  border: 3px solid var(--brain);
  color: var(--ink);
  font-size: clamp(17px, 1.6vw, 22px);
  font-weight: 900;
  opacity: 0.42;
}

.pipe-token-revealed {
  opacity: 1;
  animation: pipe-pop 0.36s ease both;
}

.pipe-number-grid {
  width: min(100%, 980px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 8px 0;
}

.pipe-number-card {
  padding: 22px;
  border-top: 8px solid var(--loop);
}

.pipe-number-token {
  opacity: 1;
  background: #eaf8ff;
  border-color: var(--eyes);
}

.pipe-vector {
  margin: 10px auto;
  padding: 14px;
  border-radius: 14px;
  background: #2b3350;
  color: #fff;
  font-size: clamp(16px, 1.6vw, 22px);
  font-weight: 900;
  letter-spacing: 0.02em;
}

.pipe-hint,
.pipe-small-note,
.pipe-picked {
  color: var(--muted);
  font-weight: 800;
}

.pipe-predict-grid {
  width: min(100%, 1040px);
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 20px;
  align-items: stretch;
}

.pipe-sentence-panel,
.pipe-candidates {
  padding: 22px;
  text-align: left;
}

.pipe-live-sentence {
  min-height: 132px;
  display: flex;
  align-items: center;
  padding: 18px;
  margin: 12px 0;
  border-radius: 16px;
  background: linear-gradient(135deg, #fff6e9, #ffe9f1);
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 900;
  line-height: 1.22;
}

.pipe-candidate {
  padding: 12px;
  margin-top: 10px;
  border: 3px solid #eee3d6;
  border-radius: 16px;
  background: #fffaf2;
}

.pipe-candidate-best {
  border-color: var(--hands);
  background: #effff7;
}

.pipe-candidate-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: clamp(16px, 1.5vw, 22px);
}

.pipe-candidate-token {
  font-weight: 900;
}

.pipe-prob-track {
  height: 16px;
  margin-top: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #eadfce;
}

.pipe-prob-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  animation: pipe-grow 0.45s ease both;
}

.pipe-finished {
  display: grid;
  min-height: 180px;
  place-items: center;
  color: var(--hands);
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 900;
}

.pipe-phone {
  width: min(100%, 760px);
  padding: 18px;
  border: 5px solid var(--ink);
  text-align: left;
}

.pipe-phone-top {
  display: inline-block;
  padding: 8px 14px;
  margin-bottom: 14px;
  border-radius: 999px;
  background: var(--eyes);
  font-weight: 900;
}

.pipe-type-box {
  min-height: 128px;
  padding: 18px;
  border-radius: 16px;
  background: #f7fbff;
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 900;
  line-height: 1.25;
}

.pipe-cursor {
  display: inline-block;
  margin-top: 6px;
  color: var(--brand);
  font-size: 34px;
  animation: pipe-blink 0.8s steps(1) infinite;
}

.pipe-stream-tokens {
  width: min(100%, 900px);
}

.pipe-stream-chip {
  opacity: 0.26;
  background: #fff;
  border-color: #e8ddce;
}

.pipe-stream-chip-lit {
  opacity: 1;
  border-color: var(--accent);
  background: #fff7d8;
  transform: translateY(-2px);
}

.pipe-recap-grid {
  width: min(100%, 1040px);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  margin: 6px 0;
}

.pipe-recap-card {
  padding: 18px 14px;
  border-bottom: 7px solid var(--brand);
}

.pipe-recap-emoji {
  font-size: clamp(34px, 4vw, 54px);
}

.pipe-recap-card p {
  margin-bottom: 0;
  font-size: clamp(15px, 1.3vw, 19px);
}

@keyframes pipe-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes pipe-pop {
  from { transform: translateY(8px) scale(0.9); }
  to { transform: none; }
}

@keyframes pipe-grow {
  from { width: 0; }
}

@keyframes pipe-blink {
  50% { opacity: 0; }
}

@media (max-width: 900px) {
  .pipe-message-flow,
  .pipe-predict-grid,
  .pipe-number-grid {
    grid-template-columns: 1fr;
  }

  /* Show recap as a 3-col grid on tablets; phones get 2-col below */
  .pipe-recap-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .pipe-flow-arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 640px) {
  /* 2-col recap on phones */
  .pipe-recap-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 420px) {
  /* Single column on very small phones */
  .pipe-recap-grid {
    grid-template-columns: 1fr;
  }
}