:root{--color-bg: #0a0e17;--color-bg-secondary: #111827;--color-bg-card: #1a2234;--color-text: #e2e8f0;--color-text-muted: #94a3b8;--color-accent: #00d4ff;--color-accent-secondary: #7c3aed;--color-accent-gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);--font-sans: "Noto Sans KR", -apple-system, BlinkMacSystemFont, sans-serif;--font-display: "Orbitron", "Noto Sans KR", sans-serif;--header-height: 72px;--container-width: 1200px;--radius: 12px;--transition: .3s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:var(--header-height)}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}ul{list-style:none}img{max-width:100%;display:block}button{font-family:inherit;cursor:pointer;border:none;background:none}input,textarea{font-family:inherit}.container{max-width:var(--container-width);margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 32px;border-radius:50px;font-size:.95rem;font-weight:500;transition:all var(--transition)}.btn-primary{background:var(--color-accent-gradient);color:#fff;box-shadow:0 4px 20px #00d4ff4d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px #00d4ff66}.btn-outline{border:2px solid var(--color-accent);color:var(--color-accent);background:transparent}.btn-outline:hover{background:var(--color-accent);color:var(--color-bg)}.btn-full{width:100%}.header{position:fixed;top:0;left:0;right:0;height:var(--header-height);z-index:1000;background:#0a0e17d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);transition:background var(--transition)}.header.scrolled{background:#0a0e17f2}.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%}.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:1.2rem}.logo-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--color-accent-gradient);border-radius:10px;font-size:.85rem;font-weight:700;color:#fff}.logo-text{background:var(--color-accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-list{display:flex;align-items:center;gap:8px}.nav-link{padding:8px 16px;font-size:.9rem;color:var(--color-text-muted);border-radius:8px;transition:all var(--transition)}.nav-link:hover,.nav-link.active{color:var(--color-accent)}.nav-dropdown{position:relative}.dropdown-menu{position:absolute;top:100%;left:0;min-width:280px;background:var(--color-bg-card);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(10px);transition:all var(--transition);box-shadow:0 20px 40px #0006}.nav-dropdown:hover .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-menu a{display:block;padding:10px 20px;font-size:.85rem;color:var(--color-text-muted);transition:all var(--transition)}.dropdown-menu a:hover{color:var(--color-accent);background:#00d4ff14}.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px}.nav-toggle span{display:block;width:24px;height:2px;background:var(--color-text);transition:all var(--transition)}.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:calc(var(--header-height) + 60px) 0 80px;overflow:hidden}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at 20% 50%,rgba(124,58,237,.15) 0%,transparent 50%),radial-gradient(ellipse at 80% 20%,rgba(0,212,255,.12) 0%,transparent 50%),radial-gradient(ellipse at 50% 80%,rgba(124,58,237,.08) 0%,transparent 50%)}.hero-bg:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")}.hero-content{position:relative;text-align:center;max-width:900px}.hero-subtitle{font-family:var(--font-display);font-size:1.1rem;color:var(--color-accent);letter-spacing:4px;text-transform:uppercase;margin-bottom:20px}.hero-title{font-size:clamp(1.8rem,5vw,3rem);font-weight:700;line-height:1.4;margin-bottom:28px}.hero-highlight{background:var(--color-accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-desc{font-size:1rem;color:var(--color-text-muted);line-height:1.9;margin-bottom:40px;max-width:720px;margin-left:auto;margin-right:auto}.hero-scroll{position:absolute;bottom:40px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--color-text-muted);font-size:.75rem;letter-spacing:2px}.scroll-line{width:1px;height:40px;background:linear-gradient(to bottom,var(--color-accent),transparent);animation:scrollPulse 2s ease-in-out infinite}@keyframes scrollPulse{0%,to{opacity:.3;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}.section{padding:100px 0}.section-header{text-align:center;margin-bottom:60px}.section-title{font-size:clamp(1.5rem,3.5vw,2.2rem);font-weight:700;margin-bottom:16px}.section-subtitle{font-size:1.1rem;color:var(--color-text-muted);margin-bottom:12px}.section-subtitle.accent{color:var(--color-accent);font-weight:500}.section-desc{color:var(--color-text-muted);line-height:1.8}.about-intro{background:var(--color-bg-secondary)}.portfolio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.portfolio-card{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;cursor:pointer;transition:transform var(--transition)}.portfolio-card:hover{transform:translateY(-4px)}.portfolio-card.hidden-card{display:none}.portfolio-card.hidden-card.show{display:block;animation:fadeInUp .5s ease forwards}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.portfolio-image{position:relative;width:100%;height:100%;background:var(--bg, var(--color-bg-card));transition:transform .5s ease;overflow:hidden}.portfolio-image img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}.portfolio-image img.fill-cover{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;object-position:center;transform:scale(1.45);transform-origin:center center}.portfolio-card:hover .portfolio-image:not(:has(img)){transform:scale(1.05)}.portfolio-card:hover .portfolio-image img{transform:scale(1.05)}.portfolio-card:hover .portfolio-image img.fill-cover{transform:scale(1.52)}.portfolio-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:flex-end;padding:20px;background:linear-gradient(to top,rgba(0,0,0,.8) 0%,transparent 60%)}.portfolio-overlay h3{font-size:.95rem;font-weight:500;line-height:1.4}.portfolio-more{text-align:center;margin-top:40px}.technology{background:var(--color-bg-secondary)}.tech-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}.tech-card{background:var(--color-bg-card);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius);padding:36px;transition:all var(--transition)}.tech-card:hover{border-color:#00d4ff33;transform:translateY(-4px);box-shadow:0 20px 40px #0000004d}.tech-icon{width:64px;height:64px;margin-bottom:20px;color:var(--color-accent)}.tech-icon svg{width:100%;height:100%}.tech-card h3{font-size:1.2rem;font-weight:600;margin-bottom:12px}.tech-card p{font-size:.9rem;color:var(--color-text-muted);line-height:1.8}.contact-header{text-align:center;margin-bottom:60px}.contact-desc{color:var(--color-text-muted);line-height:1.9;margin-top:16px}.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:60px}.process-card{text-align:center;padding:32px 20px;background:var(--color-bg-card);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius);transition:all var(--transition)}.process-card:hover{border-color:#00d4ff33}.process-icon{width:56px;height:56px;margin:0 auto 16px;display:flex;align-items:center;justify-content:center;background:#00d4ff1a;border-radius:50%;color:var(--color-accent)}.process-icon svg{width:28px;height:28px}.process-card h4{font-size:1rem;font-weight:600;margin-bottom:8px}.process-card p{font-size:.85rem;color:var(--color-text-muted);line-height:1.6}.contact-form-wrap{max-width:700px;margin:0 auto}.contact-form{background:var(--color-bg-card);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius);padding:40px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}.form-group{margin-bottom:20px}.form-group label{display:block;font-size:.85rem;font-weight:500;margin-bottom:8px;color:var(--color-text-muted)}.form-group input,.form-group textarea{width:100%;padding:12px 16px;background:var(--color-bg);border:1px solid rgba(255,255,255,.1);border-radius:8px;color:var(--color-text);font-size:.95rem;transition:border-color var(--transition)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--color-accent)}.form-group textarea{resize:vertical;min-height:120px}.contact-info{text-align:center;margin-top:24px}.contact-email{display:inline-flex;align-items:center;gap:8px;color:var(--color-accent);font-size:.95rem}.contact-email a:hover{text-decoration:underline}.cta{background:radial-gradient(ellipse at center,rgba(124,58,237,.15) 0%,transparent 70%),var(--color-bg-secondary);text-align:center}.cta-content h2{font-size:clamp(1.3rem,3vw,1.8rem);font-weight:600;line-height:1.5;margin-bottom:16px}.cta-content p{color:var(--color-text-muted);margin-bottom:32px}.footer{padding:48px 0;border-top:1px solid rgba(255,255,255,.06);background:var(--color-bg)}.footer-inner{display:flex;flex-direction:column;align-items:center;gap:24px;text-align:center}.footer-brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:1.1rem}.footer-info{font-size:.85rem;color:var(--color-text-muted);line-height:1.8}.footer-info a{color:var(--color-accent)}.footer-info a:hover{text-decoration:underline}.copyright{margin-top:8px;opacity:.7}@media(max-width:1024px){.tech-grid{grid-template-columns:1fr}.process-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.nav-toggle{display:flex;z-index:1001}.nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.nav-toggle.active span:nth-child(2){opacity:0}.nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}.nav{position:fixed;top:0;right:-100%;width:80%;max-width:320px;height:100vh;background:var(--color-bg-secondary);padding:calc(var(--header-height) + 20px) 24px 24px;transition:right var(--transition);overflow-y:auto}.nav.open{right:0}.nav-list{flex-direction:column;align-items:stretch;gap:4px}.nav-link{display:block;padding:12px 16px}.dropdown-menu{position:static;opacity:1;visibility:visible;transform:none;background:transparent;border:none;box-shadow:none;padding-left:16px;display:none}.nav-dropdown.open .dropdown-menu{display:block}.portfolio-grid{grid-template-columns:repeat(2,1fr);gap:12px}.process-grid,.form-row{grid-template-columns:1fr}.contact-form{padding:24px}.section{padding:70px 0}.hero-scroll{display:none}}@media(max-width:480px){.portfolio-grid{grid-template-columns:1fr}.hero-title{font-size:1.6rem}}