:root{--bg-color: #0a0a0a;--text-color: #ffffff;--text-muted: #888888;--accent-color: #b026ff;--accent-secondary: #4c6ef5;--glass-bg: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .1);--font-main: "Outfit", sans-serif;--font-kr: "Noto Sans KR", sans-serif;--container-width: 1200px;--header-height: 80px;--transition-speed: .4s}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-main);background-color:var(--bg-color);color:var(--text-color);line-height:1.6;overflow-x:hidden}a{text-decoration:none;color:inherit;transition:color var(--transition-speed)}ul{list-style:none}.container{max-width:var(--container-width);margin:0 auto;padding:0 20px}#cursor-glow{position:fixed;top:0;left:0;width:600px;height:600px;background:radial-gradient(circle,rgba(176,38,255,.15),transparent 70%);transform:translate(-50%,-50%);pointer-events:none;z-index:0;mix-blend-mode:screen}#bg-wrap{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;overflow:hidden;pointer-events:none}#bg-canvas{position:absolute;top:0;left:0;width:100%;height:100%;opacity:.4;pointer-events:none}#floating-grid{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}.float-box{position:absolute;background:#ffffff05;border:1px solid rgba(255,255,255,.03);border-radius:4px;-webkit-backdrop-filter:blur(1px);backdrop-filter:blur(1px);opacity:0;transition:opacity .5s,background .3s,border-color .3s;animation:float-box 10s ease-in-out infinite}#bg-wrap:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),rgba(176,38,255,.08),transparent 50%);z-index:1;pointer-events:none}.float-box.revealed{opacity:1;background:#ffffff0d;border-color:#b026ff4d;box-shadow:0 0 15px #b026ff1a}@keyframes float-box{0%,to{transform:translate(0)}25%{transform:translate(10px,-10px)}50%{transform:translate(-5px,10px)}75%{transform:translate(-10px,-5px)}}#site-header{position:fixed;top:0;left:0;width:100%;height:var(--header-height);z-index:100;display:flex;align-items:center;transition:background-color var(--transition-speed),backdrop-filter var(--transition-speed)}#site-header.scrolled{background-color:#0a0a0acc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--glass-border)}#site-header .container{display:flex;justify-content:space-between;align-items:center;width:100%}.logo{display:flex;align-items:center}.logo-text-img{height:36px;width:auto;object-fit:contain}nav ul{display:flex;gap:40px}nav a{font-size:.9rem;font-weight:600;text-transform:uppercase;letter-spacing:1px;opacity:.7}nav a:hover{opacity:1;color:var(--accent-color)}.hamburger{display:none;cursor:pointer}.hamburger span{display:block;width:25px;height:3px;margin:5px auto;-webkit-transition:all .3s ease-in-out;transition:all .3s ease-in-out;background-color:#fff}section{padding:120px 0;position:relative;z-index:10}.section-title{font-size:3rem;font-weight:800;margin-bottom:60px;background:linear-gradient(to right,#fff,#aaa);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.02em}#hero{min-height:100vh;display:flex;align-items:center;overflow:hidden;position:relative}.hero-container{display:flex;align-items:center;justify-content:space-between;gap:40px;position:relative;z-index:2;width:100%}.hero-content{flex:1}.hero-visual{flex:1;display:flex;justify-content:center;align-items:center;perspective:1000px}.logo-circle-img{width:100%;max-width:500px;height:auto;opacity:.9;filter:drop-shadow(0 0 30px rgba(176,38,255,.4));animation:breathe 8s ease-in-out infinite}@keyframes breathe{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.overline{color:var(--accent-color);font-weight:600;letter-spacing:4px;margin-bottom:20px;text-transform:uppercase}h1{font-size:5rem;line-height:1.05;font-weight:800;margin-bottom:30px;letter-spacing:-.04em}.subtitle{font-family:var(--font-kr);font-size:1.2rem;color:var(--text-muted);font-weight:300;margin-bottom:40px}.hero-btns{display:flex;gap:15px}.btn-primary{display:inline-block;padding:15px 40px;background:#fff;color:#000;font-weight:700;border-radius:50px;transition:transform .2s,box-shadow .2s}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 20px #ffffff1a}.btn-secondary{display:inline-block;padding:15px 40px;background:transparent;color:#fff;font-weight:700;border:2px solid rgba(255,255,255,.3);border-radius:50px;transition:all .2s}.btn-secondary:hover{border-color:var(--accent-color);color:var(--accent-color);background:#b026ff1a;transform:translateY(-2px)}.glass{background:#ffffff08;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.08);border-radius:0;position:relative;overflow:hidden}.glass:after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at top left,rgba(176,38,255,.05),transparent 70%);pointer-events:none}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.card{padding:40px 30px;transition:transform var(--transition-speed),border-color var(--transition-speed),box-shadow var(--transition-speed)}.card:hover{transform:translateY(-10px);border-color:#b026ff80;box-shadow:0 10px 30px #b026ff26}.card h3{font-size:1.5rem;margin-bottom:15px;color:#fff}.card p{font-family:var(--font-kr);color:var(--text-muted);font-size:.95rem}.services-list{display:flex;flex-direction:column}.service-item{display:flex;align-items:center;padding:40px 0;border-bottom:1px solid var(--glass-border);transition:background-color .3s}.service-item:hover{background-color:#ffffff05}.service-item .num{font-size:1.2rem;color:var(--accent-color);margin-right:40px;font-family:monospace}.service-item h3{font-size:2.5rem;margin-bottom:10px;transition:transform .3s}.service-item:hover h3{transform:translate(20px);color:var(--accent-color)}.service-item p{color:var(--text-muted)}#contact{text-align:center}.contact-header{margin-bottom:60px}.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-bottom:80px}.contact-card{background:#0a0a0a99;border:1px solid rgba(255,255,255,.05);border-radius:0;padding:50px 30px;display:flex;flex-direction:column;align-items:center;transition:transform .3s,border-color .3s;text-decoration:none;cursor:pointer}.contact-card:hover{transform:translateY(-10px);border-color:var(--accent-color);background:#ffffff08}.icon-box{width:60px;height:60px;background:#ffffff0d;border-radius:0;display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:1.5rem;color:var(--accent-color)}.contact-card h3{font-size:1.2rem;margin-bottom:10px;color:#fff}.contact-card p{color:var(--text-muted);font-size:.95rem}.social-section p{color:var(--text-muted);margin-bottom:20px;font-size:.9rem;letter-spacing:1px}.social-icons{display:flex;justify-content:center;gap:15px}.social-btn{width:50px;height:50px;display:flex;align-items:center;justify-content:center;border-radius:12px;font-size:1.2rem;color:var(--text-muted);background:#ffffff05;border:1px solid rgba(255,255,255,.05);transition:all .3s}.social-btn:hover{background:#b026ff1a;color:#fff;border-color:var(--accent-color);transform:translateY(-5px)}.social-img-icon{width:20px;height:20px;object-fit:contain;opacity:.55;transition:opacity .3s,filter .3s;filter:grayscale(100%)}.social-btn:hover .social-img-icon{opacity:1;filter:grayscale(0%) brightness(100%)}.detail-link{display:inline-flex;align-items:center;gap:5px;margin-top:15px;font-size:.9rem;color:var(--accent-color);text-decoration:none;font-weight:500;transition:gap .3s}.detail-link:hover{gap:10px;text-decoration:underline}.portfolio-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#000000f2;z-index:2000;justify-content:center;align-items:flex-start;overflow-y:auto;opacity:0;transition:opacity .3s ease;padding:60px 20px}.portfolio-modal.active{display:flex!important;opacity:1}.modal-content{position:relative;width:100%;max-width:1200px;background:transparent;box-shadow:none;transform:none;margin:auto}.modal-header{text-align:center;margin-bottom:50px}.modal-header h2{font-size:3rem;background:linear-gradient(to right,#fff,var(--accent-color));background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:10px}.modal-header p{color:var(--text-muted);font-size:1.1rem}.modal-close{position:fixed;top:30px;right:30px;width:50px;height:50px;background:#ffffff1a;border:1px solid rgba(255,255,255,.1);border-radius:50%;color:#fff;font-size:2rem;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:2001;transition:all .3s}.modal-close:hover{background:var(--accent-color);transform:rotate(90deg)}.portfolio-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:25px;width:100%;padding-bottom:60px}.portfolio-item{position:relative;border-radius:0;overflow:hidden;aspect-ratio:16/9;cursor:pointer;background:#111;border:1px solid rgba(255,255,255,.1);transition:transform .3s,border-color .3s,box-shadow .3s}.portfolio-item:hover{transform:translateY(-8px);border-color:var(--accent-color);box-shadow:0 10px 30px #b026ff33}.portfolio-media{width:100%;height:100%;object-fit:cover;transition:transform .5s}.portfolio-item:hover .portfolio-media{transform:scale(1.1)}.item-overlay{position:absolute;bottom:0;left:0;width:100%;padding:20px;background:linear-gradient(to top,rgba(0,0,0,.9),transparent);transform:translateY(100%);transition:transform .3s ease;z-index:2}.portfolio-item:hover .item-overlay{transform:translateY(0)}.item-overlay h4{color:#fff;font-size:1.2rem;margin-bottom:5px}.item-overlay p{color:var(--accent-color);font-size:.9rem}.lightbox-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000fa;z-index:3000;display:none;overflow-y:auto;padding:60px 0;opacity:0;transition:opacity .3s}.lightbox-overlay.active{display:flex!important;flex-direction:column;align-items:center;justify-content:flex-start;opacity:1;z-index:9999}.lightbox-img-wrapper{width:auto;max-width:1200px;margin:auto;position:relative}.lightbox-img-wrapper img{width:100%;height:auto;display:block;border-radius:4px;box-shadow:0 0 50px #b026ff26}.lightbox-text{margin-top:20px;text-align:center;color:#fff}.lightbox-close{position:fixed;z-index:10000;top:30px;right:30px;font-size:2.5rem;color:#fff;cursor:pointer;transition:color .3s}.lightbox-close:hover{color:var(--accent-color)}footer{padding:40px 0;text-align:center;color:var(--text-muted);font-size:.9rem;border-top:1px solid var(--glass-border);margin-top:60px}@media(max-width:1024px){:root{--container-width: 90%;--header-height: 60px}h1{font-size:4rem}.grid-4{grid-template-columns:1fr}#site-header .container{padding:0 20px}.hamburger{display:block;position:relative;z-index:101}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}.hamburger.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}.nav-menu{position:fixed;left:-100%;top:0;gap:0;flex-direction:column;background-color:#0a0a0afa;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);width:100%;height:100vh;text-align:center;transition:.3s;display:flex;justify-content:center;align-items:center;z-index:90;padding-top:60px}.nav-menu.active{left:0}nav ul{flex-direction:column;gap:40px}nav a{font-size:1.5rem;font-weight:700}}@media(max-width:768px){#hero{padding-top:100px;min-height:auto;padding-bottom:60px}.hero-container{flex-direction:column-reverse;text-align:center;gap:30px}.hero-visual{width:100%}.logo-circle-img{max-width:300px}h1{font-size:3rem}.hero-btns{justify-content:center}.contact-grid{grid-template-columns:1fr}}.work-process{margin-top:100px}.process-steps{display:flex;justify-content:space-between;position:relative;gap:20px}.step-item{position:relative;z-index:1;flex:1;text-align:center;background:#ffffff05;border:1px solid rgba(255,255,255,.05);padding:30px 15px;border-radius:0;transition:transform .3s,border-color .3s,background .3s;min-height:220px;display:flex;flex-direction:column;justify-content:flex-start;align-items:center}.step-item:hover{transform:translateY(-5px);border-color:var(--accent-color);background:#ffffff08}.step-num{font-size:1.2rem;font-weight:800;color:var(--accent-color);margin-bottom:20px;opacity:.8;font-family:monospace}.step-item h4{font-size:.95rem;color:#fff;margin-bottom:10px;font-weight:700;text-align:center;line-height:1.3;min-height:2.6em;display:flex;align-items:flex-start;justify-content:center}.step-item p{font-size:.8rem;color:var(--text-muted);font-family:var(--font-kr);margin:0;text-align:center;word-break:keep-all;line-height:1.4}@media(max-width:1024px){.process-steps{flex-wrap:wrap;justify-content:center;gap:15px}.step-arrow{display:none}.step-item{min-width:140px;flex:0 0 calc(33.33% - 15px)}}@media(max-width:768px){.work-process{margin-top:60px}.step-item{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;text-align:left;align-items:center;padding:15px 20px;min-height:auto;gap:0 15px;flex:0 0 calc(50% - 10px);max-width:calc(50% - 10px)}.step-num{grid-row:1 / span 2;margin-right:0;margin-bottom:0;font-size:1.5rem;width:auto}.step-item h4{margin:0;font-size:1rem;align-self:end}.step-item p{margin:0;align-self:start;word-break:keep-all;overflow-wrap:break-word}}@media(max-width:480px){.step-item{flex:0 0 100%;max-width:100%}}.auth-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#000000d9;z-index:2000;display:none;justify-content:center;align-items:center;opacity:0;transition:opacity .3s;pointer-events:none}.auth-modal.active{display:flex;opacity:1;pointer-events:auto}.auth-wrapper{background:#1a1a1a;border:1px solid #333;width:100%;max-width:420px;border-radius:4px;overflow-y:auto!important;position:relative;max-height:95vh!important;display:flex;flex-direction:column;box-shadow:0 10px 40px #00000080}.auth-close{position:absolute;top:10px;right:15px;background:transparent;border:none;color:#888;font-size:2rem;cursor:pointer;z-index:20;line-height:1}.auth-close:hover{color:#fff}.auth-tabs{display:flex;background:#fff;background:#111;border-bottom:2px solid #333}.auth-tab{flex:1;padding:16px;background:transparent;border:none;color:#888;font-size:1rem;font-weight:600;cursor:pointer;text-align:center;transition:color .3s}.auth-tab.active{color:#fff;border-bottom:2px solid #fff;margin-bottom:-2px}.auth-content{display:none;padding:20px 24px 30px;background:#eee;background:#1a1a1a}.auth-content.active{display:block}.auth-input-wrapper{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}.input-icon-group{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:14px;color:#888;font-size:1.2rem;pointer-events:none;z-index:2}.input-icon-group input{width:100%;padding:14px 14px 14px 48px;background:#252525;border:1px solid #333;border-radius:4px;color:#fff;font-size:.95rem;outline:none;transition:all .3s}.input-icon-group input::placeholder{color:#666}.input-icon-group input:focus{border-color:var(--accent-color);background:#2a2a2a;box-shadow:0 0 0 2px #b026ff1a}.input-icon-group input:focus+.input-icon,.input-icon-group:focus-within .input-icon{color:var(--accent-color)}.input-group-row{display:flex;gap:10px;align-items:flex-start}.btn-verify{height:48px;padding:0 15px;background:transparent;border:1px solid var(--accent-color);color:var(--accent-color);border-radius:4px;font-size:.85rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:all .3s}.btn-verify:hover{background:var(--accent-color);color:#fff}#sms-verify-area{display:flex;gap:10px}.btn-verify-confirm{position:absolute;top:5px;right:5px;height:38px;padding:0 15px;background:#333;border:1px solid #555;color:#fff;border-radius:4px;cursor:pointer;font-size:.8rem;transition:all .2s}.btn-verify-confirm:hover{background:var(--accent-color);border-color:var(--accent-color)}.auth-msg{font-size:.8rem;margin-top:5px;margin-left:5px;min-height:1.2em}.auth-msg.success{color:#4caf50}.auth-msg.error{color:#ff4d4d}.terms-box{margin-bottom:20px;font-size:.85rem;color:#aaa;background:#222;padding:12px;border-radius:4px}.terms-text{height:100px;overflow-y:auto;background:#151515;padding:8px;margin-bottom:10px;font-size:.75rem;color:#777;border:1px solid #333}.terms-text p{margin-bottom:8px}.terms-check{display:flex;align-items:center;gap:8px;cursor:pointer}.terms-check input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent-color)}.auth-submit-btn{width:100%;padding:16px;background:var(--accent-color);color:#fff;border:none;border-radius:4px;font-size:1.1rem;font-weight:700;cursor:pointer;transition:opacity .3s,transform .2s;display:flex;align-items:center;justify-content:center;gap:8px}.auth-submit-btn:hover{opacity:.9;transform:translateY(-2px)}@media(max-width:600px){.auth-wrapper{width:95%}}.lecture-container{padding-top:50px;padding-bottom:100px}.subject-tabs{display:flex;justify-content:center;gap:15px;flex-wrap:wrap;margin-bottom:120px}.tab-btn{padding:12px 30px;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);color:#888;border-radius:5px;cursor:pointer;font-size:1rem;font-weight:600;transition:all .3s ease}.tab-btn.active,.tab-btn:hover{background:var(--accent-color);color:#fff;border-color:var(--accent-color);box-shadow:0 0 20px #b026ff4d}.lecture-section{display:none;animation:fadeIn .5s ease}.lecture-section.active{display:block}.sub-section-title{font-size:1.5rem;margin:80px 0 20px;padding-left:15px;border-left:4px solid var(--accent-color);color:#fff}.lecture-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:30px;margin-bottom:100px}.lecture-card{background:#ffffff08;border:1px solid rgba(255,255,255,.05);border-radius:16px;padding:30px;transition:all .3s ease;text-decoration:none;display:flex;flex-direction:column;justify-content:center;min-height:180px;position:relative;overflow:hidden}.lecture-card:before{content:"";position:absolute;top:0;left:0;width:6px;height:100%;background:linear-gradient(to bottom,var(--accent-color),var(--accent-secondary));opacity:.7}.lecture-card:hover{transform:translateY(-5px);background:#ffffff14;box-shadow:0 10px 30px #0000004d}.lecture-num{font-size:.8rem;color:var(--accent-color);margin-bottom:10px;text-transform:uppercase;letter-spacing:2px}.lecture-card h4{font-size:1.2rem;line-height:1.4;color:#fff;margin:0}.hamburger{display:none;cursor:pointer;z-index:2000}.hamburger span{display:block;width:25px;height:3px;background:#fff;margin:5px auto;transition:all .3s ease}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}.hamburger.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}@media(max-width:768px){.hamburger{display:block}.nav-menu{position:fixed;left:-100%;top:0;width:100%;height:100vh;background:#0a0a0afa;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);flex-direction:column;justify-content:center;align-items:center;transition:.3s;z-index:1500;padding-top:80px}.nav-menu.active{left:0}.nav-menu ul{flex-direction:column;gap:40px;align-items:center}}