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span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.hamburger-btn.active span:nth-child(2){opacity:0}.hamburger-btn.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}.mobile-overlay{display:none;position:fixed;inset:0;background:#00000080;z-index:99;opacity:0;transition:opacity .3s ease}.mobile-overlay.active{opacity:1}@media(max-width:1024px){.detail-sidebar{width:300px}}@media(max-width:1200px){.detail-content{flex-direction:column}.detail-sidebar{width:100%;position:static;max-height:none}}@media(max-width:768px){.mobile-header{display:flex}.sidebar{position:fixed;left:0;top:0;width:280px;height:100vh;transform:translate(-100%);transition:transform .3s ease;z-index:200;padding-top:0}.sidebar.active{transform:translate(0)}.sidebar-header{padding:16px 20px}.mobile-overlay.active{display:block}.main-content,.landing-page,.detail-page{margin-left:0;width:100%;padding-top:60px}.detail-header{left:0;right:0;top:60px;padding:12px 16px}.detail-content{padding:108px 16px 20px}.detail-sidebar{top:0}.detail-breadcrumb,.back-btn span{display:none}.back-btn{padding:10px}.landing-hero{flex-direction:column;text-align:center;padding:32px 0;gap:20px}.hero-avatar{width:120px;height:120px}.hero-name{font-size:28px}.hero-title{font-size:16px}.hero-location{justify-content:center}.landing-section{margin-bottom:32px}.section-title{font-size:18px}.about-content{font-size:14px}.skill-item{flex-direction:column;align-items:flex-start;gap:8px}.skill-name,.skill-bar{width:100%}.tools-list{gap:6px}.tool-tag{padding:4px 10px;font-size:12px}.experience-item{padding:16px}.exp-header{flex-direction:column;align-items:flex-start;gap:4px}.exp-title{font-size:15px}.exp-period{font-size:12px}.stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}.stat-item{padding:16px 12px}.stat-number{font-size:24px}.stat-label{font-size:12px}.contact-grid{grid-template-columns:1fr;gap:10px}.contact-item-large{padding:12px;font-size:13px}.cta-section{padding:24px 0}.cta-button{padding:14px 28px;font-size:15px}.works-grid{grid-template-columns:1fr;gap:16px}.main-header{margin-bottom:20px;flex-direction:column;align-items:flex-start;gap:4px}.page-title{font-size:22px}.page-subtitle{font-size:13px;margin-bottom:8px}.clear-tag-btn{font-size:12px;padding:4px 12px}.work-info{padding:12px}.work-title{font-size:15px}.work-description{font-size:13px;-webkit-line-clamp:2}.work-tags{gap:4px}.tag{padding:3px 8px;font-size:11px}.detail-info-card{padding:16px}.detail-title{font-size:18px}.detail-section-title,.detail-description,.detail-content-text{font-size:13px}.back-to-top{right:16px;bottom:16px;width:44px;height:44px}.back-to-top svg{width:20px;height:20px}.sidebar-footer{padding:12px 16px}.contact-item{font-size:11px}}@media(max-width:375px){.hero-name{font-size:24px}.hero-avatar{width:100px;height:100px}.stat-number{font-size:20px}.detail-title{font-size:16px}}@media(min-width:640px){.sm\:items-center{align-items:center}.sm\:text-center{text-align:center}}