.page-hero{padding:120px 0 60px;background:var(--gradient-primary);color:var(--white);text-align:center;position:relative;overflow:hidden}.page-hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg width="40" height="40" viewBox="0 0 40 40" xmlns="http://www.w3.org/2000/svg"><g fill="white" fill-opacity="0.1"><circle cx="20" cy="20" r="1"/></g></svg>');opacity:.3}.page-title{font-size:clamp(1.8rem, 4vw, 2.8rem);font-weight:700;margin-bottom:1rem;position:relative;z-index:1;line-height:1.2}.page-subtitle{font-size:1.3rem;opacity:.9;position:relative;z-index:1}.about-main{padding:0}.chapter{padding:80px 0;position:relative}.chapter:nth-child(even){background:#fff0}[data-theme="dark"] .chapter:nth-child(even){background:#fff0}.chapter-content{display:grid;grid-template-columns:1fr 400px;column-gap:4rem;row-gap:1.5rem;align-items:center;max-width:1200px;margin:0 auto;padding:0 20px}.chapter-content.reverse{grid-template-columns:400px 1fr}.chapter-header{margin-bottom:0}.chapter-number{display:inline-block;width:60px;height:60px;background:var(--gradient-primary);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;margin-bottom:1.5rem;box-shadow:var(--shadow-lg)}.chapter-title{color:var(--primary-blue-dark);font-size:2.2rem;margin-bottom:1.5rem;line-height:1.2}.chapter-text{color:var(--secondary-gray);line-height:1.7}.chapter-text p{margin-bottom:1.5rem;font-size:1.1rem}.chapter-text strong{color:var(--primary-blue);font-weight:600}.chapter-visual{display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative}.timeline-dot{width:20px;height:20px;background:var(--gradient-primary);border-radius:50%;margin-bottom:2rem;box-shadow:var(--shadow-md);position:relative}.timeline-dot::before{content:'';position:absolute;top:20px;left:50%;transform:translateX(-50%);width:2px;height:100px;background:var(--gradient-primary);opacity:.3}.code-snippet{background:var(--black);border-radius:var(--border-radius);padding:1.5rem;box-shadow:var(--shadow-xl);width:100%;max-width:350px}[data-theme="dark"] .code-snippet{background:#0b1220;border:1px solid rgb(148 163 184 / .15);box-shadow:0 10px 24px rgb(0 0 0 / .45)}.code-snippet pre{margin:0;overflow-x:auto}.code-snippet code{font-family:var(--font-mono);font-size:.9rem;color:#10b981;line-height:1.5;display:block}.profile-section{text-align:center}.profile-image{width:300px;height:300px;object-fit:cover;border-radius:50%;box-shadow:var(--shadow-xl);margin-bottom:2rem;transition:var(--transition-slow)}.profile-image:hover{transform:scale(1.05)}.profile-stats{display:flex;flex-direction:column;gap:1rem}.stat{text-align:center;padding:1rem;background:var(--white);border-radius:var(--border-radius);box-shadow:var(--shadow-md);border-left:4px solid var(--primary-blue)}[data-theme="dark"] .about-main .stat{background:var(--surface);border:1px solid rgb(148 163 184 / .15);border-left:4px solid var(--primary-blue-light)}.stat-number{display:block;font-size:1.8rem;font-weight:700;color:var(--primary-blue);line-height:1}[data-theme="dark"] .about-main .stat-number{color:var(--primary-blue-light)}.stat-label{display:block;font-size:.9rem;color:var(--secondary-gray);margin-top:.5rem}[data-theme="dark"] .about-main .stat-label{color:var(--muted)}.philosophy-content{grid-column:1 / -1;display:grid;grid-template-columns:1fr 400px;gap:4rem;align-items:start;margin-top:2rem;background:var(--white);border-radius:var(--border-radius-lg);padding:1.75rem 2rem;box-shadow:var(--shadow-lg);border:1px solid rgb(26 54 93 / .1)}[data-theme="dark"] .philosophy-content{background:var(--surface);border:1px solid rgb(148 163 184 / .15);box-shadow:0 12px 30px rgb(0 0 0 / .35)}.chapter .chapter-content{background:var(--white);border-radius:var(--border-radius-lg);padding:2rem;box-shadow:var(--shadow-lg);border:1px solid rgb(26 54 93 / .1)}[data-theme="dark"] .chapter .chapter-content{background:var(--surface);border:1px solid rgb(148 163 184 / .15);box-shadow:0 12px 30px rgb(0 0 0 / .35)}#chapter-3 .philosophy-content{background:#fff0;border:0;box-shadow:none;padding:0;margin-top:0}#chapter-4 .invitation-content{background:#fff0;border:0;box-shadow:none;padding:0}[data-theme="dark"] #chapter-4 .invitation-content{background:#fff0;border:0;box-shadow:none}.philosophy-pillars{display:flex;flex-direction:column;gap:1.5rem}.pillar{background:var(--white);padding:1.5rem;border-radius:var(--border-radius);box-shadow:var(--shadow-md);transition:var(--transition-normal);border-left:4px solid #fff0;border:1px solid rgb(26 54 93 / .1)}.pillar:hover{transform:translateX(5px);border-left-color:var(--primary-blue);box-shadow:var(--shadow-lg)}.pillar-icon{width:50px;height:50px;background:var(--gradient-primary);border-radius:var(--border-radius);display:flex;align-items:center;justify-content:center;margin-bottom:1rem}.pillar-icon i{font-size:1.3rem;color:var(--white)}.pillar h3{color:var(--primary-blue-dark);font-size:1.1rem;margin-bottom:.5rem}.pillar p{color:var(--secondary-gray);font-size:.95rem;margin:0;line-height:1.5}.philosophy-text p{color:var(--secondary-gray);line-height:1.7}.philosophy-text p:first-child{border-left:3px solid var(--primary-blue);padding-left:1rem}.invitation-content{grid-column:1 / -1;display:grid;grid-template-columns:1fr 400px;gap:4rem;align-items:center;margin-top:1.5rem;padding:1.75rem 2rem;background:var(--white);border-radius:var(--border-radius-lg);padding:2rem;box-shadow:var(--shadow-lg);border:1px solid rgb(26 54 93 / .1)}.invitation-text{color:var(--secondary-gray)}[data-theme="dark"] .invitation-content{background:var(--surface);border:1px solid rgb(148 163 184 / .15);box-shadow:0 12px 30px rgb(0 0 0 / .35)}[data-theme="dark"] .invitation-text{color:var(--muted)}.invitation-highlight{color:var(--primary-blue);font-size:1.3rem;font-weight:600;margin-top:1rem}.invitation-cta{text-align:center}.cta-secondary{margin-top:1.5rem}@media (max-width:1024px){.chapter-content,.chapter-content.reverse{grid-template-columns:1fr;gap:3rem;text-align:center}.philosophy-content,.invitation-content{grid-template-columns:1fr;gap:1.5rem;text-align:center}.profile-stats{flex-direction:row;justify-content:center;flex-wrap:wrap}.stat{min-width:150px}}@media (max-width:768px){.page-hero{padding:100px 0 40px}.chapter{padding:60px 0}.chapter-number{width:50px;height:50px;font-size:1.2rem}.chapter-title{font-size:1.8rem}.profile-image{width:250px;height:250px}.profile-stats{flex-direction:column;align-items:center}.code-snippet{padding:1rem}.code-snippet code{font-size:.8rem}.philosophy-pillars{gap:1rem}}@media (max-width:480px){.chapter-content{padding:0 15px}.page-title{font-size:1.6rem;line-height:1.3}.page-subtitle{font-size:1.1rem}.chapter-title{font-size:1.5rem}.chapter-text p{font-size:1rem}.profile-image{width:200px;height:200px}.invitation-highlight{font-size:1.1rem}}.chapter{opacity:0;transform:translateY(30px);transition:all 0.8s ease-out}.chapter.animate-in{opacity:1;transform:translateY(0);animation:fadeInUp 0.8s ease-out forwards}.pillar{opacity:0;transform:translateX(-20px);transition:all 0.6s ease-out}.pillar.animate-in{opacity:1;transform:translateX(0);animation:slideInLeft 0.6s ease-out forwards}.pillar:nth-child(2).animate-in{animation-delay:0.1s}.pillar:nth-child(3).animate-in{animation-delay:0.2s}.no-js .chapter,.no-js .pillar{opacity:1;transform:none}@media (prefers-reduced-motion:no-preference){.chapter,.pillar{animation:revealFallback 0.6s ease-out 4s forwards}}@media (prefers-reduced-motion:reduce){.chapter,.pillar{opacity:1;transform:none;transition:none;animation:none}}@keyframes revealFallback{to{opacity:1;transform:translateY(0)}}[data-theme="dark"] .chapter-title{color:var(--text)}[data-theme="dark"] .pillar{background:var(--surface);border-left-color:#fff0;border-color:rgb(148 163 184 / .15)}[data-theme="dark"] .pillar:hover{border-left-color:var(--primary-blue-light)}[data-theme="dark"] .pillar h3{color:var(--text)}[data-theme="dark"] .pillar p{color:var(--muted)}[data-theme="dark"] .philosophy-text p{color:var(--muted)}[data-theme="dark"] .philosophy-text p:first-child{border-left-color:var(--primary-blue-light)}