@import "https://fonts.googleapis.com/css2?family=Dancing+Script:wght@700&display=swap&subset=vietnamese";
:root{--bg:#f4f5f6;--card:#fff;--text-main:#14172c;--text-muted:#64748b;--accent:#3c50e0;--white:#fff;--color-blue:#3b82f6;--color-green:#10b981;--color-amber:#f59e0b;--border-light:#f1f5f9;--shadow-soft:0 10px 25px -5px #0000000d, 0 8px 10px -6px #0000000d;--main-font:var(--font-inter), system-ui, sans-serif}.dark{--bg:#0a0a0a;--card:#ffffff05;--text-main:#f3f4f6;--text-muted:#9ca3af;--white:#0a0a0a;--border-light:#ffffff1a;--accent:#60a5fa}.about-page{min-height:100vh;font-family:var(--main-font);color:var(--text-main);padding-bottom:80px}h1,h2,h3,h4,h5,h6,.section-title,.hero-title,.outline-none-title{font-family:var(--font-heading)!important}.kicker{font-family:var(--font-inter), system-ui, sans-serif!important}.container{max-width:1100px;margin:0 auto;padding:0 24px}.premium-hero{text-align:center;z-index:1;flex-direction:column;align-items:center;max-width:900px;margin:0 auto;padding:120px 20px 90px;display:flex;position:relative}.hero-glow-layer{filter:blur(60px);z-index:-1;pointer-events:none;background:radial-gradient(circle,#3c50e01f 0%,#3c50e00a 50%,#0000 70%);width:600px;height:600px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.dark .hero-glow-layer{background:radial-gradient(circle,#ffffff0d 0%,#ffffff03 50%,#0000 70%)}.author-badge{color:var(--accent);letter-spacing:1px;text-transform:uppercase;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#3c50e014;border:1px solid #3c50e033;border-radius:100px;align-items:center;gap:8px;margin-bottom:30px;padding:8px 20px;font-size:.85rem;font-weight:800;display:inline-flex;box-shadow:0 4px 20px #3c50e01a}.dark .author-badge{color:#ededed;background:#ffffff0d;border-color:#ffffff1a}.hero-title{letter-spacing:-.04em;margin-bottom:30px;font-size:clamp(2.5rem,5vw,3.5rem);font-weight:700;line-height:1.1;color:var(--text-main)!important}.text-gradient{background:linear-gradient(135deg,#3c50e0 0%,#8b5cf6 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;padding-bottom:.1em;display:inline-block}.hero-description{max-width:750px;margin:0 auto}.hero-description p{color:var(--text-muted);font-size:1.15rem;font-weight:500;line-height:1.8;font-family:var(--font-inter), system-ui, sans-serif;margin-bottom:40px}.hero-description strong{color:var(--text-main);font-weight:800}.hero-stats{background:var(--card);border:1px solid var(--border-light);box-shadow:var(--shadow-soft);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:24px;justify-content:center;align-items:center;gap:30px;max-width:max-content;margin:0 auto;padding:24px 40px;display:flex}.stat-unit{flex-direction:column;align-items:center;gap:5px;display:flex}.stat-unit strong{color:var(--accent);letter-spacing:-.02em;font-size:2rem;font-weight:600;line-height:1}.stat-unit span{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);font-size:.75rem;font-weight:600}.stat-unit.divider{background:var(--border-light);width:1px;height:40px}@media (max-width:768px){.hero-stats{flex-direction:row;justify-content:space-evenly;gap:12px;width:100%;padding:24px 15px}.stat-unit strong{font-size:1.4rem}.stat-unit span{text-align:center;font-size:.65rem}.stat-unit.divider{width:1px;height:30px}.premium-hero{padding:60px 20px 40px}}.section-title{letter-spacing:-.03em;align-items:center;gap:12px;margin:60px 0 30px;font-size:1.8rem;font-weight:600;display:flex;color:var(--text-main)!important}.section-title:before{content:"";background:var(--accent);border-radius:4px;width:4px;height:24px;display:block}.quick-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.quick-grid .card{background:var(--card);border:1px solid var(--border-light);box-shadow:var(--shadow-soft);border-radius:24px;padding:35px;transition:all .4s cubic-bezier(.175,.885,.32,1.275)}.quick-grid .card:first-child,.quick-grid .card:nth-child(2),.quick-grid .card:nth-child(3){background:var(--card)}.quick-grid .card:hover{transform:translateY(-12px);box-shadow:0 20px 30px #00000014}.kicker{letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:15px;font-size:.8rem;font-weight:600}.quick-grid .card:first-child .kicker{color:#60a5fa}.quick-grid .card:nth-child(2) .kicker{color:#34d399}.quick-grid .card:nth-child(3) .kicker{color:#fbbf24}.fact-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;display:grid}.fact-item{background:var(--card);box-shadow:var(--shadow-soft);border:1px solid #0000;border-radius:20px;align-items:center;padding:24px;transition:all .3s;display:flex}.fact-item:hover{border-color:var(--accent);background:#fdfdfd;transform:scale(1.02)}.dark .fact-item:hover{background:#252525}.fact-item .icon{background:#ffffff0d;border-radius:12px;justify-content:center;align-items:center;width:48px;min-width:48px;height:48px;margin-right:20px;font-size:1.4rem;display:flex}.dark .fact-item .icon{background:#ffffff0d}.category-list{flex-direction:column;gap:16px;display:flex}.category-card{background:var(--card);border:1px solid var(--border-light);box-shadow:var(--shadow-soft);cursor:default;border-radius:24px;padding:30px;transition:all .3s}.category-card h3{color:var(--text-main);margin-bottom:10px;font-size:1.25rem;font-weight:600}.category-card:hover{background:#ffffff14;border-color:#fff3;transform:translateY(-4px)}.category-card:hover h3,.category-card:hover p{color:var(--text-main)}.aurora-chat-container{background:var(--card);border:1px solid var(--border-light);box-shadow:var(--shadow-soft);text-align:center;border-radius:32px;justify-content:center;align-items:center;margin-top:80px;padding:60px 40px;display:flex;position:relative}.aurora-glass-card{max-width:800px;margin:0 auto}.outline-none-title{background:linear-gradient(135deg,#14172c,#475569);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:2.2rem;font-weight:700;display:inline-block;border-left:none!important;margin-top:0!important;padding-left:0!important}.outline-none-title:before{display:none!important}.dark .outline-none-title{background:linear-gradient(#fff,#a3a3a3);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.aurora-desc{color:#334155;margin-bottom:25px;font-size:1.15rem;line-height:1.8}.dark .aurora-desc{color:#cbd5e1}.aurora-promise{color:#0f172a;max-width:600px;margin:30px auto 40px;font-family:serif;font-size:1.4rem;font-style:italic;position:relative}.aurora-promise:before{content:"“";color:#ff4f331a;font-family:serif;font-size:80px;position:absolute;top:-30px;left:-20px}.dark .aurora-promise{color:#f8fafc}.dark .aurora-promise:before{color:#ffffff0d}.aurora-btn-wrapper{display:inline-block;position:relative}.aurora-cta-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#3c50e0,#8b5cf6);border:none;border-radius:99px;padding:16px 50px;font-size:1.15rem;font-weight:700;transition:all .4s;position:relative;box-shadow:0 10px 25px #3c50e04d}.aurora-cta-btn:hover{background:linear-gradient(135deg,#8b5cf6,#3c50e0);transform:translateY(-5px);box-shadow:0 20px 40px #3c50e066}.social-links{flex-wrap:wrap;gap:12px;margin-top:25px;display:flex}.social-item{color:var(--accent);border:2px solid var(--accent);white-space:nowrap;border-radius:12px;justify-content:center;align-items:center;padding:10px 25px;font-weight:600;text-decoration:none;transition:all .3s;display:inline-flex}.social-item:hover{background:var(--accent);color:#fff}.connect-section{background:var(--card);border:1px solid var(--border-light);text-align:center;border-radius:50px;margin-top:100px;padding:80px 0;box-shadow:0 15px 40px -10px #0000000d}.connect-section .section-title:before{display:none}.connect-section .section-subtitle{min-height:1.6em;color:var(--text-muted);justify-content:center;align-items:center;width:100%;margin-top:10px!important;margin-bottom:40px!important;line-height:1.6!important;display:flex!important}.social-links{justify-content:center;margin-bottom:60px}.social-item{background:var(--card)}.connect-section{margin-bottom:0;padding-bottom:50px}.about-footer{text-align:center;border-top:1px dashed #cbd5e1;max-width:800px;margin:0 auto;padding:80px 20px}.footer-text{color:var(--text-main);margin-bottom:12px;font-size:1.15rem;font-weight:400;line-height:1.8}.footer-subtext{color:var(--text-muted);margin-bottom:30px;font-size:1rem;font-style:italic}.signature{background:linear-gradient(135deg, var(--accent), #8b5cf6);-webkit-text-fill-color:transparent;color:var(--accent);-webkit-user-select:none;user-select:none;-webkit-background-clip:text;background-clip:text;margin-top:20px;padding-right:10px;font-family:Dancing Script,Pacifico,cursive;font-size:2.5rem;display:inline-block;position:relative;transform:rotate(-3deg)}.signature:after{content:"";background:linear-gradient(90deg,#0000,#ff4f3366,#0000);border-radius:50%;width:90%;height:2px;position:absolute;bottom:0;left:5%}.signature:hover{transform:scale(1.05)rotate(-2deg)}@media (max-width:600px){.footer-text{font-size:1rem}.signature{font-size:1.8rem}}@media (max-width:980px){.quick-grid,.fact-grid{grid-template-columns:1fr}}@media (max-width:600px){.hero{padding:40px 10px}.chat-box{padding:40px 20px}.section-title{font-size:1.8rem}.hero-title{letter-spacing:-.5px;font-size:clamp(1.8rem,8vw,2.5rem)}.muted{padding:0;font-size:1.05rem!important}}@media (max-width:980px){.social-links{justify-content:center}}@media (max-width:600px){.social-links{gap:10px}.social-item{text-align:center;flex:calc(50% - 10px);padding:12px 10px;font-size:.9rem}}@media (max-width:400px){.social-item{flex:100%}}.popup-overlay{z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f172a99;justify-content:center;align-items:center;width:100vw;height:100vh;padding:20px;display:flex;position:fixed;top:0;left:0}.dark .popup-overlay{-webkit-backdrop-filter:blur(12px);background:#0009}.popup-content{width:100%;max-width:500px;max-height:95vh;animation:.4s cubic-bezier(.16,1,.3,1) slideUpModal;position:relative;overflow-y:auto}.close-btn{background:var(--bg);cursor:pointer;width:36px;height:36px;color:var(--text-muted);z-index:20;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:24px;transition:all .2s;display:flex;position:absolute;top:20px;right:25px;box-shadow:0 4px 6px #0000000d}.close-btn:hover{color:#ef4444;background:#fee2e2;transform:rotate(90deg)}@keyframes slideUpModal{0%{opacity:0;transform:translateY(40px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}.text-left{text-align:left!important}.glass-form{max-height:90vh;position:relative;overflow-y:auto;background:var(--card)!important;border:1px solid var(--border-light)!important;border-radius:20px!important;padding:28px 32px!important;box-shadow:0 20px 50px -15px #00000040!important}.glass-form:before{content:"";background:linear-gradient(90deg,#1063f3,#8b5cf6,#ec4899);height:6px;position:absolute;top:0;left:0;right:0}.glass-form h3{letter-spacing:-.5px;color:var(--text-main)!important;margin-bottom:4px!important;font-size:1.3rem!important;font-weight:800!important}.glass-form p{color:var(--text-muted)!important;margin-bottom:16px!important;font-size:.9rem!important;line-height:1.5!important}.form-item{flex-direction:column;display:flex;margin-bottom:12px!important}.form-item label{text-transform:uppercase;letter-spacing:1px;color:var(--text-muted)!important;margin-bottom:8px!important;font-size:12px!important;font-weight:700!important}.glass-form input,.glass-form textarea{width:100%;font-family:var(--main-font);background:var(--bg)!important;border:1.5px solid #0000!important;border-bottom:2px solid var(--border-light)!important;color:var(--text-main)!important;border-radius:8px!important;padding:10px 14px!important;font-size:.9rem!important;transition:all .3s!important}.glass-form input::placeholder,.glass-form textarea::placeholder{font-style:italic;font-weight:400;color:#94a3b8!important}.glass-form input:focus,.glass-form textarea:focus{transform:translateY(-2px);background:var(--card)!important;border-color:#0000!important;border-bottom:2px solid var(--accent)!important;outline:none!important;box-shadow:0 15px 30px -10px #00000014!important}.submit-neon{cursor:pointer;width:100%;margin-top:10px;background:linear-gradient(135deg, var(--text-main), #334155)!important;color:var(--bg)!important;border:none!important;border-radius:99px!important;padding:12px!important;font-size:.95rem!important;font-weight:700!important;transition:all .3s!important;box-shadow:0 6px 15px #0000001a!important}.dark .submit-neon{color:#ededed!important;box-shadow:none!important;background:#ffffff0f!important;border:1px solid #ffffff1a!important}.submit-neon:hover:not(:disabled){background:var(--accent)!important;transform:translateY(-4px)!important;box-shadow:0 15px 30px #1063f34d!important}.submit-neon.is-loading{background:var(--text-muted)!important;cursor:not-allowed!important;box-shadow:none!important;transform:none!important}.status-message-box{font-weight:500;border-left:4px solid!important;border-radius:12px!important;margin-bottom:30px!important;padding:16px 20px!important;font-size:1rem!important}@keyframes spin{to{transform:rotate(360deg)}}.submit-neon.is-loading{cursor:not-allowed!important;background:#bdc3c7!important;transform:none!important}.status-message-box{background:#f8fafc;border-left:4px solid!important;border-radius:12px!important;margin-bottom:20px!important;padding:12px 16px!important;font-size:.9rem!important}.status-message-box.success{color:#065f46!important;background:#ecfdf5!important;border-left-color:#10b981!important}.status-message-box.error{color:#991b1b!important;background:#fef2f2!important;border-left-color:#ef4444!important}.spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.8s linear infinite spin;display:inline-block}.button-content{justify-content:center;align-items:center;gap:10px;display:flex}.timeline{max-width:800px;margin:0 auto;padding:20px 0;position:relative}.timeline:after{content:"";background-color:#cbd5e1;width:2px;margin-left:-1px;position:absolute;top:0;bottom:0;left:20px}.dark .timeline:after{background-color:#334155}.timeline-item{background-color:inherit;width:100%;padding:10px 40px;position:relative}.timeline-dot{background-color:var(--accent);border:3px solid var(--bg);z-index:1;border-radius:50%;width:16px;height:16px;position:absolute;top:15px;left:12px}.timeline-content{background-color:var(--card);border:1px solid var(--border-light);border-radius:12px;padding:20px 30px;position:relative;box-shadow:0 4px 15px #0000000d}.timeline-content h3{color:var(--accent);margin-bottom:10px;font-size:1.2rem}.timeline-content p{color:var(--text-muted,#666);line-height:1.6}@media screen and (max-width:600px){.timeline:after{left:15px}.timeline-dot{left:7px}.timeline-item{padding:10px 10px 10px 35px}}