/* About WhispR — Phase 3A.1 (extends site.css) */

.about-page {
  --about-prose: 38rem;
}

.about-hero {
  background: var(--hero-gradient);
  padding: var(--space-16) 0 var(--space-24);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(176, 72, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.about-hero-inner {
  position: relative;
  max-width: 44rem;
  margin: 0 auto;
}

.about-hero-mark {
  width: 88px;
  height: 88px;
  margin: 0 auto var(--space-6);
  border-radius: 20px;
  object-fit: contain;
  box-shadow: 0 20px 48px rgba(91, 79, 232, 0.18);
  animation: hero-float 6s ease-in-out infinite;
}

.about-hero-eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-4);
}

.about-hero-title {
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.about-hero-lead {
  font-size: clamp(1.125rem, 2.5vw, 1.3125rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 36rem;
  margin: 0 auto var(--space-8);
}

.about-philosophy {
  font-size: clamp(1.0625rem, 2.2vw, 1.1875rem);
  font-style: italic;
  color: var(--text-muted);
  line-height: 1.65;
  padding: var(--space-6) var(--space-8);
  border-left: 3px solid color-mix(in srgb, var(--accent) 45%, transparent);
  background: color-mix(in srgb, var(--bg-elevated) 70%, transparent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  text-align: left;
  max-width: 32rem;
  margin: 0 auto;
}

.about-section {
  padding: var(--space-16) 0;
}

.about-section-alt {
  background: var(--section-alt);
}

.about-prose {
  max-width: var(--about-prose);
}

.about-prose-wide {
  max-width: 48rem;
}

.about-prose p + p {
  margin-top: var(--space-5);
}

.about-prose .section-lead {
  margin-bottom: var(--space-6);
}

.about-pull {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.45;
  margin: var(--space-8) 0;
}

.about-voice-lines {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin: var(--space-10) 0;
}

.about-voice-lines p {
  font-size: clamp(1.25rem, 3vw, 1.625rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  padding-left: var(--space-6);
  border-left: 3px solid color-mix(in srgb, var(--cyan) 40%, transparent);
  line-height: 1.35;
}

.about-split {
  display: grid;
  gap: var(--space-12);
  align-items: start;
}

@media (min-width: 768px) {
  .about-split {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.about-principles {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-12);
}

@media (min-width: 640px) {
  .about-principles {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .about-principles {
    grid-template-columns: repeat(3, 1fr);
  }
}

.principle-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.principle-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.principle-number {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

.principle-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}

.principle-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.about-future-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-8);
}

.about-future-list li {
  padding-left: var(--space-8);
  position: relative;
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.about-future-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
}

.about-ai-note {
  margin-top: var(--space-8);
  padding: var(--space-6) var(--space-8);
  background: color-mix(in srgb, var(--accent) 6%, var(--bg-elevated));
  border: 1px solid color-mix(in srgb, var(--accent) 12%, transparent);
  border-radius: var(--radius-lg);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.about-ai-note strong {
  color: var(--text-primary);
  font-weight: 600;
}

.about-cta {
  background: var(--bg-midnight);
  color: var(--text-on-dark);
  text-align: center;
  padding: var(--space-16) 0;
}

.about-cta .section-title {
  color: var(--text-on-dark);
}

.about-cta .section-lead {
  color: color-mix(in srgb, var(--text-on-dark) 78%, transparent);
  margin: 0 auto var(--space-8);
}

.about-cta .section-label {
  color: var(--cyan);
}

.about-reveal {
  animation: fade-up 0.7s ease both;
}

.about-reveal-delay-1 { animation-delay: 0.08s; }
.about-reveal-delay-2 { animation-delay: 0.16s; }