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var(--transition-fast)}.audio-btn:hover{background:var(--color-accent-bright)}.audio-btn.speaking{animation:micPulse 1.5s ease-in-out infinite}.about-content{max-width:980px;margin:0 auto}.about-section{margin-bottom:56px}.about-section h2{font-family:var(--font-heading);font-size:32px;color:var(--color-accent);margin-bottom:20px;letter-spacing:-.5px}.about-section p{font-size:18px;line-height:1.8;color:var(--color-text-muted);margin-bottom:16px}.mission-card{background:linear-gradient(135deg,#1a365d66,#c9a22714);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:48px;margin-bottom:48px;text-align:center}.mission-quote{font-family:var(--font-heading);font-size:28px;font-style:italic;color:var(--color-text);line-height:1.5;margin-bottom:16px}.mission-attr{font-size:14px;color:var(--color-accent);letter-spacing:2px;text-transform:uppercase}.tech-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-top:24px}.tech-item{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:24px;text-align:center;transition:all var(--transition-med)}.tech-item:hover{border-color:var(--color-accent);transform:translateY(-4px)}.tech-icon{font-size:36px;margin-bottom:12px}.tech-name{font-weight:600;font-size:16px;margin-bottom:6px}.tech-desc{font-size:13px;color:var(--color-text-muted)}.partnership{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:32px;display:flex;align-items:center;gap:24px;margin-top:32px}.partner-logo{width:80px;height:80px;background:linear-gradient(135deg,var(--color-accent),var(--color-accent-bright));border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-family:var(--font-heading);font-size:36px;color:var(--color-primary);font-weight:700;flex-shrink:0}.footer{border-top:1px solid var(--color-border);padding:32px 0 0;margin-top:64px;text-align:center;color:var(--color-text-dim);font-size:14px}.footer p{margin-bottom:8px}.footer .accent{color:var(--color-accent);font-weight:600}@media (max-width: 1024px){.app-shell{grid-template-columns:80px 1fr}.brand-text,.nav-item span:not(.nav-icon){display:none}.nav-item{justify-content:center;padding:18px}.main-content{padding:32px}.hero-title{font-size:56px}.page-title{font-size:36px}}@media (max-width: 640px){.app-shell{grid-template-columns:1fr;grid-template-rows:auto 1fr}.sidebar{flex-direction:row;padding:16px;overflow-x:auto}.sidebar-brand{display:none}.sidebar-nav{flex-direction:row;padding:0;gap:4px}.nav-item{padding:12px;min-height:48px}.main-content{padding:20px}.hero-title{font-size:36px}.hero-subtitle{font-size:18px}}