@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700;800&display=swap";.sidebar{width:35%;height:100vh;position:sticky;top:0;display:flex;flex-direction:column;justify-content:center;padding:0 60px;border-right:1px solid var(--border-subtle)}.sidebar-inner{max-width:300px;height:90%;display:flex;flex-direction:column;justify-content:space-between}.brand-alias{font-size:3.5rem;font-weight:850;letter-spacing:-.05em;color:var(--text-main);margin:0}.brand-fullname{font-size:.8rem;font-weight:700;letter-spacing:.25em;margin-top:8px;color:var(--text-secondary)}.role-container{margin-top:24px}.role-en{display:block;font-size:.95rem;font-weight:700;color:var(--accent);text-transform:uppercase}.role-vn{display:block;font-size:.85rem;color:var(--text-light);font-style:italic;margin-top:2px}.separator{width:40px;height:2px;background-color:var(--accent);margin:32px 0}.intro-text{font-size:.95rem;line-height:1.7;color:var(--text-secondary);text-align:justify;-webkit-hyphens:auto;hyphens:auto}.nav-menu{margin:48px 0;display:flex;flex-direction:column;gap:20px}.nav-link{display:flex;align-items:center;gap:16px;text-decoration:none}.nav-indicator{width:24px;height:1px;background-color:var(--text-light);transition:all .4s cubic-bezier(.4,0,.2,1)}.nav-en{display:block;font-size:.8rem;font-weight:700;text-transform:uppercase;color:var(--text-light);letter-spacing:.1em;transition:color .3s ease}.nav-vn{font-size:.7rem;color:var(--text-light);opacity:.5}.nav-link:hover .nav-indicator,.nav-link.active .nav-indicator{width:50px;background-color:var(--text-main)}.nav-link:hover .nav-en,.nav-link.active .nav-en{color:var(--text-main)}.partner-logos{display:flex;gap:16px;align-items:center;margin-bottom:24px}.p-logo{height:20px;width:auto;filter:grayscale(100%);opacity:.4;transition:all .3s ease}.p-logo:hover{filter:grayscale(0%);opacity:1;transform:scale(1.1)}.sidebar-footer{font-size:.7rem;color:var(--text-light);opacity:.6;text-transform:uppercase}.layout-wrapper{display:flex;max-width:1400px;margin:0 auto;min-height:100vh}.main-content{width:65%;padding:100px 80px}.section-title{font-size:.85rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--text-light);margin-bottom:40px}.project-card{background:#fff;padding:40px;margin-bottom:30px;border-radius:12px;border:1px solid transparent;cursor:pointer;position:relative;transition:all .3s cubic-bezier(.25,.46,.45,.94);box-shadow:0 4px 6px -1px #00000005}.project-card:hover{transform:translateY(-5px) scale(1.01);box-shadow:0 20px 25px -5px #0000000d,0 8px 10px -6px #00000003;border-color:var(--border-subtle)}.project-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent);border-radius:4px 0 0 4px;opacity:0;transition:opacity .3s}.project-card:hover:before{opacity:1}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.project-year{font-family:monospace;color:var(--text-light);font-size:.85rem}.card-title{font-size:1.75rem;font-weight:700;margin:0 0 10px;color:var(--text-main);display:flex;align-items:center;justify-content:space-between}.arrow-icon{opacity:0;transform:translate(-10px);transition:all .3s ease;color:var(--accent);font-size:1.5rem}.project-card:hover .arrow-icon{opacity:1;transform:translate(0)}.card-desc{color:var(--text-secondary);font-size:1.05rem;line-height:1.7;margin-bottom:25px;text-align:justify}.tags{display:flex;gap:10px;flex-wrap:wrap}.tag{font-size:.75rem;font-weight:600;color:var(--text-secondary);background:#f1f5f9;padding:6px 14px;border-radius:6px}.project-card:hover .tag{background:#eff6ff;color:var(--accent)}.about-section{margin-top:120px;max-width:700px;position:relative}.about-content{margin-top:20px;color:#555;line-height:1.7;font-size:.95rem;text-align:justify}.about-content p{margin-bottom:18px}.about-skills{margin-top:35px}.skill-group{margin-bottom:35px;padding-left:20px;border-left:2px solid #f1f5f9;transition:border-color .3s ease}.skill-group:hover{border-left-color:var(--accent)}.skill-title{font-size:.7rem;letter-spacing:.15em;font-weight:700;color:var(--text-light);margin-bottom:15px;text-transform:uppercase;opacity:.8}.about-skills .tag{transition:all .3s ease;cursor:default}.about-skills .tag:hover{background:#eff6ff;color:var(--accent);transform:translateY(-2px)}.about-content strong{color:var(--text-main);font-weight:600;border-bottom:1px dotted var(--accent)}@media(max-width:1024px){.layout-wrapper{flex-direction:column}.sidebar{width:100%;height:auto;position:relative;padding:60px 40px;border-right:none;border-bottom:1px solid var(--border-subtle)}.sidebar-inner{height:auto}.main-content{width:100%;padding:40px 20px}}:root{--primary-accent: #2563eb;--success-accent: #16a34a;--text-dark-main: #1e293b;--text-dark-muted: #475569;--bg-section-card: #ffffff;--bg-global-content: #f8fafc;--border-subtle: #e2e8f0;--danger-accent: #dc2626}.container{width:100%;max-width:1200px;margin:0 auto;padding:2.5rem 2rem;background-color:var(--bg-global-content);color:var(--text-dark-main);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;box-sizing:border-box}.bg-content{display:flex;flex-direction:column;gap:3rem}.book-banner{width:100%;height:auto;border-radius:12px;border:1px solid var(--border-subtle);box-shadow:0 4px 20px #0000000d}.hr-text{border:none;border-top:1px dashed #cbd5e1;text-align:center;height:1px;margin:2rem 0;position:relative}.hr-text:after{content:attr(data-content);background-color:var(--bg-global-content);padding:0 1.25rem;position:absolute;top:-9px;left:50%;transform:translate(-50%);font-size:.75rem;font-weight:600;letter-spacing:.15rem;color:#94a3b8}.title-center{font-size:1.35rem;font-weight:700;letter-spacing:.02rem;color:var(--text-dark-main);border-left:5px solid var(--primary-accent);padding-left:1rem;text-transform:uppercase;margin-bottom:1.5rem}.row{display:grid;grid-template-columns:repeat(12,1fr);gap:2.5rem;align-items:start}.col-sm-7{grid-column:span 7}.col-sm-5{grid-column:span 5}.col-sm-3{grid-column:span 3}.col-sm-9{grid-column:span 9}@media(max-width:992px){.col-sm-7,.col-sm-5,.col-sm-3,.col-sm-9{grid-column:span 12}.row{gap:2rem}}ol{padding-left:1.5rem;margin-bottom:1.5rem}ol>li{margin-bottom:1.2rem;line-height:1.7;font-size:1.05rem;color:var(--text-dark-main)}ol li strong{color:#000;font-weight:600}ul{padding-left:1.5rem;margin-top:.6rem;list-style-type:circle}ul li{margin-bottom:.5rem;color:var(--text-dark-muted);font-size:.98rem}.container a{color:var(--primary-accent);text-decoration:none;font-weight:500;word-break:break-all;border-bottom:1px solid transparent;transition:all .2s ease}.container a:hover{color:#1d4ed8;border-bottom-color:#1d4ed8}.email-highlight{color:var(--danger-accent)!important;background-color:#dc26260f;padding:.2rem .6rem;border-radius:4px;border:1px solid rgba(220,38,38,.15);font-family:monospace;font-weight:600;font-size:1rem}.shipping-notice{color:var(--danger-accent)!important;display:block;margin-top:.4rem;font-size:.95rem;font-weight:500;background-color:#dc26260a;border-left:3px solid var(--danger-accent);padding:.5rem .75rem;border-radius:0 4px 4px 0}.media-panel{background:var(--bg-section-card);border:1px solid var(--border-subtle);border-radius:12px;padding:1.5rem;display:flex;flex-direction:column;align-items:center;gap:1.5rem;box-shadow:0 10px 25px #00000008}.video-container{position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:8px;border:1px solid var(--border-subtle)}.video-container iframe{position:absolute;top:0;left:0;width:100%;height:100%}.price-tag{font-size:1.3rem;font-weight:700;letter-spacing:.05rem;color:var(--success-accent);background:#16a34a0f;padding:.75rem 1.5rem;border-radius:6px;border:1px solid rgba(22,163,74,.2);width:100%;text-align:center;box-sizing:border-box}.book-cover-wrapper{display:flex;justify-content:center;align-items:flex-start}.book-thumbnail{max-width:200px;width:100%;height:auto;border-radius:6px;border:1px solid var(--border-subtle);box-shadow:0 12px 28px #00000014;transition:transform .2s ease}.book-thumbnail:hover{transform:translateY(-4px)}.book-article{text-align:justify;line-height:1.75;color:var(--text-dark-main)}.book-article h3{font-size:1.25rem;font-weight:700;color:#0f172a;margin-bottom:1.2rem;line-height:1.4}.book-article p{margin-bottom:1.2rem;font-size:1.02rem;color:#334155}.call-to-action-text{font-size:1.05rem;font-weight:600;color:#1e3a8a;background:#2563eb0d;border-left:4px solid var(--primary-accent);padding:1rem 1.25rem;border-radius:0 6px 6px 0;margin-top:2rem}.fb-comments-wrapper{background:#fff;padding:1.5rem;border-radius:12px;border:1px solid var(--border-subtle);box-shadow:0 4px 15px #00000005}:root{--bg-color: #F8FAFC;--text-main: #0F172A;--text-secondary: #475569;--text-light: #94A3B8;--accent: #2563EB;--border-subtle: #E2E8F0}body{margin:0;background-color:var(--bg-color);color:var(--text-main);font-family:Inter,sans-serif;-webkit-font-smoothing:antialiased}