*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Dosis',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:#fff;color:#333;line-height:1.6;transition:background-color 0.3s,color 0.3s}h1,h2,h3,h4,h5,h6,.sidebar-header h3{font-family:'Dosis',sans-serif;font-weight:600;}.header{position:sticky;top:0;background:#fff;box-shadow:0 2px 10px rgb(0 0 0 / .05);padding:1rem 5%;z-index:1000;transition:background-color 0.3s}.header-container{display:flex;align-items:center;justify-content:space-between;max-width:1400px;margin:0 auto}.left-section{display:flex;align-items:center;gap:1.5rem}.right-section{display:flex;align-items:center;gap:.5rem}.hamburger-btn,.icon-btn{background:none;border:none;cursor:pointer;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background-color 0.3s;color:#4b5563}.hamburger-btn{font-size:1.5rem}.icon-btn{font-size:1.2rem}.hamburger-btn:hover,.icon-btn:hover{background-color:#f3f4f6}.logo{display:flex;align-items:center;text-decoration:none}.logo img{height:35px;width:35px;border-radius:30%;object-fit:cover;display:block}.sidebar-overlay{position:fixed;inset:0;background:rgb(0 0 0 / .5);opacity:0;visibility:hidden;transition:all 0.3s ease;z-index:2000}.sidebar-overlay.active{opacity:1;visibility:visible}.sidebar{position:fixed;top:0;left:-320px;width:300px;height:100%;background:#fff;box-shadow:2px 0 10px rgb(0 0 0 / .1);transition:left 0.3s ease;z-index:2001;overflow-y:auto}.sidebar.active{left:0}.sidebar-header{padding:1.5rem;border-bottom:1px solid #e5e7eb;display:flex;align-items:center;justify-content:space-between}.sidebar-header h3{font-size:1.2rem;color:#1f2937}.close-sidebar{background:none;border:none;font-size:1.2rem;cursor:pointer;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;color:#6b7280;transition:background-color 0.3s}.close-sidebar:hover{background-color:#f3f4f6}.categories-list{padding:1rem 0}.category-item{display:flex;align-items:center;justify-content:space-between;padding:.8rem 1.5rem;color:#374151;text-decoration:none;transition:background-color 0.3s;border-left:3px solid #fff0}.category-item:hover{background-color:#f9fafb;border-left-color:#2563eb}.category-info{display:flex;align-items:center;gap:1rem}.category-info i{width:20px;color:#2563eb;font-size:1.1rem}.category-count{background:#f3f4f6;padding:.2rem .6rem;border-radius:20px;font-size:.8rem;color:#6b7280}.search-overlay{position:fixed;top:0;left:0;right:0;background:rgb(0 0 0 / .5);backdrop-filter:blur(10px);height:0;transition:height 0.3s ease;overflow:hidden;z-index:1001}.search-overlay.active{height:100%}.search-container{max-width:600px;margin:100px auto;padding:0 20px;position:relative}.search-input-wrapper{position:relative;width:100%}.search-input{width:100%;padding:15px 50px 15px 25px;font-size:1.1rem;border:none;border-radius:50px;background:#fff;box-shadow:0 10px 30px rgb(0 0 0 / .2);outline:none}.search-input-wrapper i{position:absolute;right:20px;top:50%;transform:translateY(-50%);color:#9ca3af;font-size:1.2rem;pointer-events:none}.close-search{position:absolute;top:20px;right:40px;color:#fff;font-size:2rem;cursor:pointer;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background-color 0.3s}.close-search:hover{background-color:rgb(255 255 255 / .1)}body.dark-theme{background:#1a1a1a;color:#f0f0f0}body.dark-theme .header{background:#2d2d2d;box-shadow:0 2px 10px rgb(0 0 0 / .3)}body.dark-theme .hamburger-btn,body.dark-theme .icon-btn{color:#e5e7eb}body.dark-theme .hamburger-btn:hover,body.dark-theme .icon-btn:hover{background-color:#404040}body.dark-theme .sidebar{background:#2d2d2d}body.dark-theme .sidebar-header{border-bottom-color:#404040}body.dark-theme .sidebar-header h3{color:#f0f0f0}body.dark-theme .close-sidebar{color:#e5e7eb}body.dark-theme .close-sidebar:hover{background-color:#404040}body.dark-theme .category-item{color:#e5e7eb}body.dark-theme .category-item:hover{background-color:#374151}body.dark-theme .category-count{background:#374151;color:#9ca3af}body.dark-theme .search-input{background:#374151;color:#fff}body.dark-theme .search-input::placeholder{color:#9ca3af}.main-content{transition:margin-left 0.3s ease}