/* ═══════════════════════════════════════════
   POSSIBILITIES — Storytelling page
═══════════════════════════════════════════ */

.pos-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
}

.pos-section {
  padding: var(--space-section) 0;
}

.pos-section--surface {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.pos-section--dark {
  position: relative;
}

.pos-section--dark::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-hero);
}


/* ══════════ HERO ══════════ */

.pos-hero {
  padding: 120px 0 var(--space-section);
  border-bottom: 3px solid;
  border-image: var(--gradient-hero) 1;
}

.pos-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.pos-hero__title {
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.08;
  margin-bottom: 24px;
}

.pos-hero__subtitle {
  font-size: 17px;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 640px;
}


/* ══════════ PREMISE BLOCK ══════════ */

.premise-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.premise-block__title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.premise-block__sub {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-top: 16px;
}

.premise-block__sub strong {
  color: var(--text-primary);
}

.premise-block__right {
  overflow: hidden;
}

.premise-block__right .pos-img,
.premise-block__right .pos-illustration {
  height: auto;
  min-height: 200px;
}


/* ══════════ IMAGES ══════════ */

.pos-img {
  width: 100%;
  display: block;
  object-fit: cover;
}

.pos-illustration {
  width: 100%;
  height: auto;
  display: block;
  background: transparent;
}


/* ══════════ STORY BLOCKS ══════════ */

.pos-story {
  max-width: none;
}

/* Story with visual: illustration floats to right, aligned with header */
.pos-story:has(.pos-story__visual) {
  position: relative;
}

.pos-story:has(.pos-story__visual) .pos-story__visual {
  position: absolute;
  top: 0;
  right: 0;
  width: 45%;
}

.pos-story:has(.pos-story__visual) .pos-story__header,
.pos-story:has(.pos-story__visual) .pos-story__title,
.pos-story:has(.pos-story__visual) .pos-story__narrative {
  max-width: 50%;
}

.pos-story__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.pos-story__num {
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.25;
}

.pos-story__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 5px 12px;
  border: 1px solid var(--border-default);
  color: var(--text-tertiary);
}

.dark-section .pos-story__tag {
  border-color: var(--border-dark);
  color: var(--text-on-dark-secondary);
}

.pos-story__title {
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 24px;
}

.dark-section .pos-story__title {
  color: var(--text-on-dark);
}

.pos-story__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.pos-story__visual {
  overflow: hidden;
}

.pos-story__visual .pos-img,
.pos-story__visual .pos-illustration {
  height: auto;
}

/* Premise block alignment — match exactly */
.premise-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.pos-story__narrative p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.dark-section .pos-story__narrative p {
  color: var(--text-on-dark-secondary);
}

/* Data flow visualization */
.pos-story__systems {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
  border-top: none;
  margin-top: 24px;
}

.dark-section .pos-story__systems {
  border-bottom-color: var(--border-dark);
}

.pos-story__flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.flow-node {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  padding: 6px 14px;
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  white-space: nowrap;
}

.dark-section .flow-node {
  border-color: var(--border-dark);
  color: var(--text-on-dark-secondary);
}

.flow-node--central {
  border-color: var(--accent-blue);
  border-width: 2px;
  color: var(--accent-blue);
  font-weight: 600;
}

.flow-node--agent {
  background: var(--bg-dark);
  color: var(--text-on-dark);
  border-color: var(--bg-dark);
}

.dark-section .flow-node--agent {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.15);
  color: var(--text-on-dark);
}

.flow-node--app {
  background: var(--bg-surface);
}

.dark-section .flow-node--app {
  background: var(--bg-dark-surface);
}

.flow-arrow {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-muted);
}

.pos-story__impossible {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.5;
  padding-left: 16px;
  border-left: 2px solid var(--accent-rose);
}

.dark-section .pos-story__impossible {
  color: var(--text-on-dark-secondary);
  border-left-color: rgba(225,29,72,0.4);
}


/* ══════════ PATTERN BLOCK ══════════ */

.pattern-block {
  max-width: 800px;
  margin: 0 auto;
}

.pattern-block__title {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 20px;
}

.pattern-block__title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--gradient-hero);
}

.pattern-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border-default);
  border: 1px solid var(--border-default);
  margin-bottom: 40px;
}

.pattern-step {
  padding: 28px;
  background: var(--bg-primary);
  transition: background 0.2s;
}

.pattern-step:hover {
  background: var(--bg-inset);
}

.pattern-step__num {
  display: block;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 12px;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.2;
}

.pattern-step p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
}

.pattern-step strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 4px;
}

.pattern-block__coda {
  font-size: 18px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}


/* ══════════ CTA ══════════ */

.pos-cta {
  padding: var(--space-section) 0;
  border-top: 3px solid;
  border-image: var(--gradient-hero) 1;
  text-align: center;
}

.pos-cta__title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 500;
  margin-bottom: 12px;
}

.pos-cta__body {
  font-size: 15px;
  color: var(--text-tertiary);
  margin-bottom: 28px;
}


/* ══════════ RESPONSIVE ══════════ */

@media (max-width: 900px) {
  .pos-inner { padding: 0 24px; }
  .premise-block { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .pos-inner { padding: 0 16px; }
  .pos-hero { padding: 80px 0 48px; }
  .pos-hero__title { font-size: clamp(24px, 6vw, 36px); }
  .pos-story__num { font-size: 48px; }
  .pos-story__title { font-size: clamp(20px, 5vw, 26px); }
  .pos-story__flow { gap: 6px; }
  .flow-node { font-size: 10px; padding: 5px 10px; }
  .pattern-grid { grid-template-columns: 1fr; gap: 0; }
  .pos-story:has(.pos-story__visual) .pos-story__visual {
    position: static;
    width: 100%;
    margin-bottom: 16px;
  }
  .pos-story:has(.pos-story__visual) .pos-story__header,
  .pos-story:has(.pos-story__visual) .pos-story__title,
  .pos-story:has(.pos-story__visual) .pos-story__narrative {
    max-width: 100%;
  }
  .premise-block { grid-template-columns: 1fr; }
  .premise-block__right .pos-img,
  .premise-block__right .pos-illustration { min-height: 180px; }
}

@media (max-width: 480px) {
  .pos-inner { padding: 0 12px; }
  .pos-story__flow { flex-direction: column; align-items: flex-start; }
  .flow-arrow { transform: rotate(90deg); padding: 0 8px; }
}