* {
            -webkit-box-sizing: border-box;
            -moz-box-sizing: border-box;
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        :root {
            --color-white: #ffffff;
            --color-black: #141420;
            --color-bg-color: #2c2c39;
            --color-stroke: #4d4c5a;
            --color-dark: #1d2144;
            --color-primary: #5142fc;
            --color-secondary: #36b37e;
            --color-body-color: #a1a0ae;
            --main-transition: 0.6s;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: "Work Sans", sans-serif;
            background-color: var(--color-bg-color);
            color: var(--color-white);
        }
        
        .container {
            padding: 15px;
            max-width: 1600px;
            margin: 0 auto;
        }
        
        a {
            text-decoration: none;
        }
        
        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        /* Navigation */
        .nav_layout {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 5%;
            z-index: 100;
        }
        
        .nav_skin {
            border-bottom: 1px solid var(--color-stroke);
            background-color: rgba(40, 40, 60, 0.9);
            backdrop-filter: blur(10px);
        }
        
        .nav_layout ul {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        
        ul .li_skin {
            color: var(--color-body-color);
            transition: var(--main-transition);
            cursor: pointer;
            font-size: 16px;
        }
        
        ul .li_skin:hover {
            color: var(--color-white);
            font-weight: bold;
        }
        
        .input-skin {
            background-color: var(--color-bg-color);
            border: 1px solid var(--color-stroke);
            color: var(--color-body-color);
            padding: 10px 15px;
            outline: none;
            border-radius: 5px;
            min-width: 200px;
        }
        
        /* Header */
        .header_layout {
            margin-top: 100px;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 20px 5%;
        }
        
        @media (min-width: 992px) {
            .header_layout {
                flex-direction: row;
                justify-content: space-between;
            }
        }
        
        .header_skin {
            max-width: 600px;
            margin-bottom: 40px;
        }
        
        .header_skin h1 {
            font-size: 2.5rem;
            color: var(--color-white);
            line-height: 1.2;
            margin-bottom: 20px;
        }
        
        @media (min-width: 768px) {
            .header_skin h1 {
                font-size: 3.5rem;
            }
        }
        
        .header_skin p {
            font-size: 1.1rem;
            color: var(--color-body-color);
            margin-bottom: 30px;
            line-height: 1.6;
        }
        
        .header_skin button {
            padding: 12px 24px;
            margin-right: 15px;
            margin-bottom: 15px;
            font-weight: bold;
            cursor: pointer;
            border-radius: 10px;
            transition: var(--main-transition);
        }
        
        .header_skin button.btn {
            background-color: var(--color-primary);
            color: var(--color-white);
            border: none;
        }
        
        .header_skin button.btn:hover {
            background-color: rgb(20, 17, 235);
        }
        
        .header_skin button:last-child {
            background-color: var(--color-white);
            color: var(--color-black);
            border: none;
        }
        
        .header_skin button:last-child:hover {
            background-color: var(--color-primary);
            color: var(--color-white);
        }
        
        .img_hero {
            max-width: 100%;
            height: auto;
            animation: move 3s infinite;
        }
        
        @keyframes move {
            0% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(20px);
            }
            100% {
                transform: translateY(0);
            }
        }
        
        /* Sections */
        section {
            padding: 60px 5%;
            margin: 0 auto;
            max-width: 1400px;
        }
        
        .h2_skin {
            color: var(--color-white);
            font-weight: bold;
            font-size: 2rem;
            padding-bottom: 20px;
            margin-bottom: 30px;
            border-bottom: 1px solid var(--color-stroke);
        }
        
        /* Cards */
        .card_layout {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 30px;
        }
        
        .card_skin {
            background-color: var(--color-bg-color);
            padding: 20px;
            border-radius: 10px;
            transition: var(--main-transition);
            cursor: pointer;
            border: 1px solid var(--color-primary);
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        
        .card_skin:hover {
            box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
            border-color: var(--color-secondary);
            transform: translateY(-5px);
        }
        
        .card_skin img {
            width: 100%;
            max-width: 150px;
            height: auto;
            border-radius: 10px;
            margin-bottom: 15px;
            transition: var(--main-transition);
        }
        
        .card_skin:hover img {
            transform: scale(1.05);
        }
        
        .card_skin h3 {
            color: var(--color-white);
            margin-bottom: 10px;
            font-size: 1.1rem;
        }
        
        .card_skin h4 {
            color: var(--color-secondary);
            font-size: 1rem;
        }
        
        .card_skin p {
            color: var(--color-body-color);
            margin-top: 15px;
            font-size: 0.9rem;
        }
        
        /* Auction Cards */
        .auction-card {
            position: relative;
            overflow: hidden;
        }
        
        .auction-card .timer {
            background-color: var(--color-body-color);
            color: var(--color-bg-color);
            padding: 8px 15px;
            border-radius: 5px;
            font-weight: bold;
            margin-top: 15px;
        }
        
        /* Core Features */
        .features .card_skin {
            padding: 30px 20px;
        }
        
        .features .card_skin h1 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--color-white);
        }
        
        /* Popular Collection */
        .aside_layout {
            display: flex;
            flex-direction: column;
        }
        
        .aside_layout > div {
            display: grid;
            grid-template-columns: 1fr;
            gap: 30px;
        }
        
        @media (min-width: 768px) {
            .aside_layout > div {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        .aside_text {
            margin-bottom: 20px;
        }
        
        .aside_text h1 {
            font-size: 1.5rem;
            margin-bottom: 10px;
        }
        
        .aside_card {
            background-color: var(--color-dark);
            padding: 15px;
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }
        
        .aside_card img {
            width: 100%;
            border-radius: 10px;
            margin-bottom: 10px;
        }
        
        .aside_card div {
            display: grid;
            grid-template-columns: 1fr;
            gap: 10px;
        }
        
        @media (min-width: 480px) {
            .aside_card div {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        /* Footer */
        footer {
            padding: 60px 5%;
            background-color: var(--color-dark);
            margin-top: 60px;
            text-align: center;
            border-top: 1px solid var(--color-secondary);
        }
        
        footer img {
            margin-bottom: 20px;
            max-width: 150px;
        }
        
        footer h1 {
            max-width: 600px;
            margin: 0 auto 30px;
            line-height: 1.6;
        }
        
        /* Responsive adjustments */
        @media (max-width: 992px) {
            .nav_layout {
                flex-direction: column;
                padding: 15px;
                position: static;
            }
            
            .nav_layout ul {
                margin: 15px 0;
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .header_layout {
                margin-top: 30px;
                text-align: center;
            }
            
            .header_skin {
                display: flex;
                flex-direction: column;
                align-items: center;
            }
        }
        
        @media (max-width: 768px) {
            .input-skin {
                width: 100%;
                max-width: 300px;
                margin-top: 15px;
            }
            
            .header_skin h1 {
                font-size: 2rem;
            }
            
            section {
                padding: 40px 5%;
            }
        }
        
        @media (max-width: 480px) {
            .header_skin button {
                width: 100%;
                margin-right: 0;
            }
            
            .h2_skin {
                font-size: 1.5rem;
            }
        }