/* ─── WHITEPAPER PAGE STYLES ─── */

.container { padding: 2rem; }

/* ─── HERO HEADER ─── */
.wp-hero {
  padding: 8rem 2rem 5rem; border-bottom: 1px solid var(--border);
}
.wp-hero .container { max-width: var(--max-w); }
.wp-hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.4rem); font-weight: 700;
  letter-spacing: -0.035em; line-height: 1.1; margin-bottom: 1.5rem; max-width: 680px;
}
.wp-hero-sub {
  color: var(--text-secondary); font-size: 1.05rem;
  line-height: 1.7; margin-bottom: 0; max-width: 560px;
}

/* ─── SECTIONS ─── */
.wp-section { padding: 6rem 2rem; border-bottom: 1px solid var(--border); }
.wp-section.alt { background: var(--bg-alt); }

/* Section headers */
.wp-section-header { margin-bottom: 3rem; }
.wp-section-header h2 {
  font-size: 1.6rem; font-weight: 700;
  letter-spacing: -0.02em; margin-bottom: 0.6rem;
}
.wp-section-header p {
  font-size: 0.95rem; color: var(--text-secondary);
  max-width: 540px; line-height: 1.7;
}
.subsection-header {
  font-size: 1.05rem; font-weight: 700; margin-bottom: 0.4rem;
  letter-spacing: -0.01em;
}

/* ─── KPI STATS ─── */
.kpi-stats {
  display: flex; gap: 4rem; padding-top: 2.5rem;
  border-top: 1px solid var(--border); margin-top: 2rem;
}
.kpi-stat strong {
  display: block; font-family: var(--mono);
  font-size: 1.8rem; font-weight: 600; letter-spacing: -0.02em;
}
.kpi-stat span { font-size: 0.78rem; color: var(--text-muted); font-weight: 400; }
.kpi-stat-desc { font-size: 0.82rem; color: var(--text-secondary); margin-top: 0.25rem; max-width: 220px; }

/* ─── CONTENT PROSE ─── */
.wp-prose { margin-top: 1.5rem; }
.wp-prose p {
  font-size: 0.95rem; color: var(--text-secondary);
  line-height: 1.7; margin-bottom: 1rem; max-width: 640px;
}
.wp-prose p:last-child { margin-bottom: 0; }
.wp-prose strong { color: var(--text); }

/* ─── CAPABILITY GRID ─── */
.wp-cap-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 1px; background: var(--border); border: 1px solid var(--border);
  margin-top: 2rem;
}
.wp-cap-card {
  background: var(--bg); padding: 2rem;
  display: flex; flex-direction: column; transition: background 0.25s;
}
.wp-cap-card:hover { background: var(--bg-alt); }
.wp-cap-num {
  font-family: var(--mono); font-size: 0.7rem;
  color: var(--text-muted); font-weight: 500;
  margin-bottom: 0.8rem; letter-spacing: 0.03em;
}
.wp-cap-title { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.5rem; letter-spacing: -0.01em; }
.wp-cap-desc { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.6; }
.wp-cap-outcome {
  font-family: var(--mono); font-size: 0.72rem; font-weight: 600;
  color: var(--text-muted); margin-top: auto; padding-top: 1rem; letter-spacing: 0.02em;
}

/* ─── PROCESS STEPS ─── */
.wp-steps { display: flex; flex-direction: column; margin-top: 1.5rem; }
.wp-step {
  display: grid; grid-template-columns: 100px 1fr;
  gap: 2rem; padding: 2rem 0; border-bottom: 1px solid var(--border-light);
}
.wp-step:last-child { border-bottom: none; }
.wp-step-label {
  font-family: var(--mono); font-size: 0.72rem;
  color: var(--text-muted); font-weight: 500; padding-top: 0.2rem;
}
.wp-step h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.4rem; letter-spacing: -0.01em; }
.wp-step p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.65; max-width: 520px; }

/* ─── TWO-COL DETAIL ─── */
.wp-detail {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: start; margin-top: 2rem;
}
.wp-detail h3 { font-size: 1.3rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 1rem; }
.wp-detail-list {
  list-style: none; display: flex; flex-direction: column; gap: 0.5rem;
}
.wp-detail-list li { font-size: 0.88rem; color: var(--text-secondary); padding-left: 1rem; position: relative; }
.wp-detail-list li::before {
  content: ''; position: absolute; left: 0; top: 0.55em;
  width: 4px; height: 4px; border-radius: 50%; background: var(--text-muted);
}

/* ─── HIGHLIGHT ─── */
.wp-highlight {
  padding: 2.5rem 0; border-top: 1px solid var(--border); margin-top: 2rem;
}
.wp-highlight-text {
  font-size: clamp(1.4rem, 3vw, 1.8rem); font-weight: 700;
  letter-spacing: -0.02em; line-height: 1.15; margin-bottom: 0.6rem; max-width: 520px;
}
.wp-highlight-sub { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.7; max-width: 480px; }

/* ─── CTA ─── */
.wp-cta-section {
  background: var(--bg); border-bottom: 1px solid var(--border); padding: 6rem 2rem;
}
.wp-cta-inner { max-width: var(--max-w); margin: 0 auto; }
.wp-cta-inner h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem); font-weight: 700;
  letter-spacing: -0.03em; margin-bottom: 1rem; max-width: 520px; line-height: 1.15;
}
.wp-cta-inner p {
  font-size: 0.95rem; color: var(--text-secondary);
  max-width: 480px; line-height: 1.7; margin-bottom: 2rem;
}

/* ─── META ─── */
.meta-info {
  text-align: left; color: var(--text-muted); font-size: 0.75rem;
  padding: 2rem; max-width: var(--max-w); margin: 0 auto;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .container { padding: 1rem; }
  .wp-hero { padding: 4rem 1.25rem; }
  .wp-section { padding: 4rem 1.25rem; }
  .kpi-stats { flex-direction: column; gap: 1.5rem; }
  .wp-cap-grid { grid-template-columns: 1fr; }
  .wp-detail { grid-template-columns: 1fr; gap: 2rem; }
  .wp-step { grid-template-columns: 1fr; gap: 0.5rem; }
}