/* ── Page Hero ─────────────────────────────────────────────── */
.page-hero {
  padding: 116px 0 80px;
  position: relative;
  overflow: hidden;
}

/* Subtle ambient glow — matches homepage */
.page-hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(56, 217, 150, 0.045) 0%, transparent 65%);
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.page-hero__back {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 28px;
  transition: color var(--t-fast);
  letter-spacing: 0.01em;
}
.page-hero__back:hover { color: var(--accent); }

/* The section__label class is already defined in style.css */
/* It sits between back link and headline here */

.page-hero__headline {
  font-size: clamp(34px, 4.5vw, 54px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: 22px;
}

.page-hero__intro {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 600px;
}

/* ── Personal Statement ────────────────────────────────────── */
.about-statement {
  margin-top: 52px;
  padding: 40px 0 0 28px;
  border-top: 1px solid var(--border);
  border-left: 2px solid rgba(56, 217, 150, 0.45);
  max-width: 600px;
}

.about-statement p {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.about-statement p + p {
  margin-top: 10px;
}

/* Final line gets primary text weight — it's the positive conclusion */
.about-statement p:last-child {
  color: var(--text-primary);
  font-weight: 500;
}

/* ── Background Split Layout ───────────────────────────────── */
.about-split {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  align-items: flex-start;
}

.about-split__lead .section__label { margin-bottom: 9px; }
.about-split__lead .section__title { line-height: 1.2; }

/* ── Prose ─────────────────────────────────────────────────── */
.about-prose p {
  font-size: 15px;
  line-height: 1.82;
  color: var(--text-secondary);
}

.about-prose p + p {
  margin-top: 20px;
}

/* First paragraph gets slightly higher contrast — it's the opening line */
.about-prose p:first-child {
  font-size: 15.5px;
  color: var(--text-primary);
  font-weight: 500;
}

/* ── Principle Cards ───────────────────────────────────────── */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.principle-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  transition: background var(--t-fast), border-color var(--t-fast);
}

/* Left accent line as pseudo-element — grows on hover */
.principle-card::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: var(--accent);
  border-radius: 0 1px 1px 0;
  opacity: 0.4;
  transition: opacity var(--t-med), top var(--t-med), bottom var(--t-med);
}

.principle-card:hover {
  background: var(--bg-panel-hover);
  border-color: var(--border-light);
}

.principle-card:hover::before {
  opacity: 0.9;
  top: 14px;
  bottom: 14px;
}

.principle-card__title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.2;
}

.principle-card__desc {
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-secondary);
}

/* ── Knowledge Grid — 2-column variant (for 4 items) ──────── */
.knowledge__grid--2col {
  grid-template-columns: repeat(2, 1fr);
}

/* ── Knowledge Base card visual variant ───────────────────── */
.card__visual--knowledge {
  background: linear-gradient(130deg, rgba(154, 171, 184, 0.04) 0%, transparent 60%);
}
.card__visual--knowledge::after {
  background: radial-gradient(circle, rgba(154, 171, 184, 0.07), transparent 70%);
}
.card__visual--knowledge .card__icon-wrap {
  color: var(--text-secondary);
  background: rgba(154, 171, 184, 0.08);
  border-color: rgba(154, 171, 184, 0.2);
}

/* ── Closing ───────────────────────────────────────────────── */
.about-closing {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.about-closing__text {
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-secondary);
  display: block;
}

.about-closing__text + .about-closing__text {
  margin-top: 18px;
}

.about-closing__ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 44px;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 900px) {
  .about-split {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .principles-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .knowledge__grid--2col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .knowledge__grid--2col {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 540px) {
  .knowledge__grid--2col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .page-hero {
    padding: 100px 0 64px;
  }

  .page-hero__headline {
    font-size: 30px;
  }

  .about-statement {
    padding-left: 20px;
  }

  .about-closing {
    text-align: left;
  }

  .about-closing__ctas {
    justify-content: flex-start;
  }
}