/* Estilos compartidos — páginas de conceptos */
.concept-hero {
  padding: 64px clamp(20px, 4vw, 48px) 48px;
  text-align: center;
  position: relative;
}
.concept-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 0%, rgba(79, 142, 247, 0.08), transparent 70%);
  pointer-events: none;
}
.concept-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid rgba(79, 142, 247, 0.3);
  background: rgba(79, 142, 247, 0.08);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}
.concept-badge.accent-blue { color: var(--accent); border-color: rgba(79, 142, 247, 0.3); background: rgba(79, 142, 247, 0.08); }
.concept-badge.accent-purple { color: var(--accent2); border-color: rgba(162, 89, 255, 0.3); background: rgba(162, 89, 255, 0.08); }
.concept-badge.accent-teal { color: var(--teal); border-color: rgba(79, 200, 220, 0.3); background: rgba(79, 200, 220, 0.08); }
.concept-badge.accent-mix { color: var(--text); border-color: rgba(255, 255, 255, 0.15); background: linear-gradient(135deg, rgba(79, 142, 247, 0.1), rgba(162, 89, 255, 0.1)); }

.concept-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.concept-hero p {
  max-width: 640px;
  margin: 0 auto;
  font-size: 15px;
}

.concept-body {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px) 48px;
}
.concept-section {
  margin-bottom: 48px;
}
.concept-section h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 32px);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.concept-section p {
  font-size: 14px;
  margin-bottom: 14px;
  line-height: 1.75;
}
.concept-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 20px;
}
.concept-panel {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}
.concept-panel h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}
.concept-panel p {
  font-size: 13px;
  margin-bottom: 0;
}
.concept-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}
.concept-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  list-style: none;
}
.concept-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-top: 7px;
  flex-shrink: 0;
  background: var(--accent);
}
.concept-list.purple li::before { background: var(--accent2); }
.concept-list.teal li::before { background: var(--teal); }

.concept-example {
  border-radius: 16px;
  padding: 28px;
  margin-top: 20px;
  font-size: 13px;
  line-height: 1.75;
}
.concept-example strong { color: var(--text); font-weight: 400; }
.concept-example.blue { background: rgba(79, 142, 247, 0.06); border: 1px solid rgba(79, 142, 247, 0.2); }
.concept-example.purple { background: rgba(162, 89, 255, 0.06); border: 1px solid rgba(162, 89, 255, 0.2); }
.concept-example.teal { background: rgba(79, 200, 220, 0.06); border: 1px solid rgba(79, 200, 220, 0.2); }
.concept-example.mix { background: linear-gradient(135deg, rgba(79, 142, 247, 0.06), rgba(162, 89, 255, 0.06)); border: 1px solid rgba(255, 255, 255, 0.1); }

.concept-related {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}
.concept-related a {
  font-size: 12px;
  padding: 8px 16px;
  border-radius: 100px;
  border: 1px solid var(--border);
  color: var(--muted);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.concept-related a:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
}

.concept-cta {
  max-width: 1100px;
  margin: 0 auto 48px;
  padding: 0 clamp(20px, 4vw, 48px);
}
.concept-cta-box {
  background: linear-gradient(135deg, rgba(79, 142, 247, 0.08), rgba(162, 89, 255, 0.08));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 40px clamp(20px, 4vw, 48px);
  text-align: center;
}
.concept-cta-box h2 {
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 800;
  margin-bottom: 12px;
}
.concept-cta-box p {
  max-width: 480px;
  margin: 0 auto 24px;
  font-size: 13px;
}
.concept-btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-size: 14px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 28px rgba(79, 142, 247, 0.25);
}
.concept-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(79, 142, 247, 0.4);
}
.concept-btn-outline {
  display: inline-block;
  margin-left: 12px;
  padding: 12px 24px;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 14px;
  text-decoration: none;
  transition: background 0.2s;
}
.concept-btn-outline:hover { background: rgba(255, 255, 255, 0.06); }

@media (max-width: 768px) {
  .concept-grid-2 { grid-template-columns: 1fr; }
  .concept-btn-outline { display: block; margin: 12px auto 0; max-width: 280px; }
}