:root {
        --bg-color: #FFD700;
        --text-color: #000000;
        --btn-color: #FF1493;
        --border-color: #000000;
        --shadow-offset: 8px;
        --border-width: 4px;
    }

    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

    body {
        background-color: var(--bg-color);
        color: var(--text-color);
        font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
        line-height: 1.5;
        -webkit-font-smoothing: antialiased;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    /* Typography */
    h1, h2, h3, h4 {
        font-weight: 900;
        line-height: 1.2;
        letter-spacing: -0.05em;
    }

    h1 {
        font-size: clamp(2.5rem, 8vw, 5rem);
        margin-bottom: 20px;
    }

    h2 {
        font-size: clamp(2rem, 5vw, 3.5rem);
        margin-bottom: 30px;
        border-bottom: var(--border-width) solid var(--border-color);
        padding-bottom: 10px;
        display: inline-block;
    }

    h3 {
        font-size: 1.5rem;
        margin-bottom: 15px;
    }

    p {
        font-size: 1.1rem;
        font-weight: 500;
        margin-bottom: 20px;
        max-width: 800px;
    }

    /* Navbar */
    header {
        position: sticky;
        top: 0;
        background-color: var(--bg-color);
        border-bottom: var(--border-width) solid var(--border-color);
        z-index: 100;
    }

    .nav-container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 70px;
        overflow-x: auto;
    }

    .logo-area {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.2rem;
        font-weight: 900;
        white-space: nowrap;
    }

    .logo-area img {
        height: 32px;
        width: auto;
        border: 2px solid var(--border-color);
    }

    .nav-links {
        display: flex;
        gap: 20px;
        list-style: none;
        margin-left: 20px;
    }

    .nav-links a {
        color: var(--text-color);
        text-decoration: none;
        font-weight: 800;
        font-size: 1rem;
        white-space: nowrap;
        border-bottom: 3px solid transparent;
        transition: border-color 0.2s;
    }

    .nav-links a:hover {
        border-color: var(--border-color);
    }

    /* Buttons */
    .btn {
        display: inline-block;
        background-color: var(--btn-color);
        color: var(--bg-color);
        font-weight: 900;
        font-size: 1.1rem;
        padding: 15px 30px;
        border: var(--border-width) solid var(--border-color);
        box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-color);
        text-decoration: none;
        text-align: center;
        transition: transform 0.1s, box-shadow 0.1s;
        cursor: pointer;
        white-space: nowrap;
    }

    .btn:active, .btn:hover {
        transform: translate(var(--shadow-offset), var(--shadow-offset));
        box-shadow: 0 0 0 var(--border-color);
    }

    .btn-group {
        display: flex;
        gap: 20px;
        flex-wrap: wrap;
        margin-top: 30px;
    }

    /* Sections */
    section {
        padding: 80px 0;
        border-bottom: var(--border-width) solid var(--border-color);
    }

    /* Hero Section */
    .hero {
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
        align-items: center;
    }

    .hero-text {
        max-width: 600px;
    }

    .hero-img {
        width: 100%;
        height: auto;
        border: var(--border-width) solid var(--border-color);
        box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-color);
    }

    /* Grid Layouts */
    .grid-2, .grid-3, .grid-4 {
        display: grid;
        gap: 30px;
    }

    .grid-2 { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: 1fr; }

    .card {
        background-color: var(--bg-color);
        border: var(--border-width) solid var(--border-color);
        box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-color);
        overflow: hidden;
        display: flex;
        flex-direction: column;
    }

    .card-img {
        width: 100%;
        aspect-ratio: 16/9;
        object-fit: cover;
        border-bottom: var(--border-width) solid var(--border-color);
    }

    .card-content {
        padding: 20px;
        flex-grow: 1;
    }

    .card-content h3 {
        margin-bottom: 10px;
    }

    .card-content p {
        font-size: 1rem;
        line-height: 1.4;
        margin-bottom: 0;
    }

    /* Marquee */
    .marquee-wrap {
        overflow: hidden;
        border-top: var(--border-width) solid var(--border-color);
        border-bottom: var(--border-width) solid var(--border-color);
        background-color: #000;
        color: var(--bg-color);
        padding: 10px 0;
        margin: 40px 0;
        display: flex;
        white-space: nowrap;
    }

    .marquee-inner {
        display: inline-block;
        animation: marquee 20s linear infinite;
        font-weight: 800;
        font-size: 1.1rem;
    }
    
    .marquee-inner span {
        margin-right: 30px;
    }

    @keyframes marquee {
        0% { transform: translateX(0); }
        100% { transform: translateX(-50%); }
    }

    /* List Style */
    .list-block {
        border: var(--border-width) solid var(--border-color);
        background-color: var(--bg-color);
        box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-color);
    }

    .list-item {
        display: flex;
        align-items: center;
        padding: 20px;
        border-bottom: var(--border-width) solid var(--border-color);
        gap: 20px;
    }

    .list-item:last-child {
        border-bottom: none;
    }

    .list-rank {
        font-size: 2rem;
        font-weight: 900;
        width: 50px;
        flex-shrink: 0;
        text-align: center;
    }

    .list-info h4 {
        font-size: 1.2rem;
        margin-bottom: 5px;
    }

    .list-info p {
        font-size: 0.9rem;
        margin-bottom: 0;
        font-weight: 500;
    }

    /* Player Mockup */
    .player-block {
        position: relative;
        width: 100%;
        aspect-ratio: 16/9;
        border: var(--border-width) solid var(--border-color);
        box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--border-color);
        background-color: #000;
        display: flex;
        align-items: center;
        justify-content: center;
        overflow: hidden;
    }
    
    .player-block img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0.8;
    }

    .play-icon {
        position: absolute;
        width: 80px;
        height: 80px;
        background-color: var(--btn-color);
        border: var(--border-width) solid var(--border-color);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
    }

    .play-icon::after {
        content: '';
        display: block;
        width: 0;
        height: 0;
        border-style: solid;
        border-width: 15px 0 15px 25px;
        border-color: transparent transparent transparent var(--text-color);
        margin-left: 8px;
    }

    /* Modal */
    .modal-overlay {
        display: none;
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(0,0,0,0.8);
        z-index: 1000;
        align-items: center;
        justify-content: center;
        padding: 20px;
    }

    .modal-content {
        background-color: var(--bg-color);
        border: var(--border-width) solid var(--border-color);
        box-shadow: 16px 16px 0 var(--border-color);
        padding: 30px;
        max-width: 500px;
        width: 100%;
        text-align: center;
    }

    .modal-content p {
        font-weight: 800;
        margin-bottom: 20px;
        text-align: left;
    }

    .modal-input {
        width: 100%;
        padding: 15px;
        font-size: 1rem;
        font-weight: bold;
        border: var(--border-width) solid var(--border-color);
        margin-bottom: 20px;
        background-color: #fff;
        color: #000;
    }

    /* Footer */
    footer {
        padding: 40px 0;
        font-size: 0.85rem;
        color: #333;
        background-color: var(--bg-color);
    }

    footer p {
        font-size: 0.85rem;
        margin-bottom: 10px;
        color: #333;
    }

    footer a {
        color: #333;
        text-decoration: underline;
    }
    
    .tag-cloud {
        margin-bottom: 20px;
        font-size: 0.85rem;
        line-height: 1.8;
        color: #555;
    }

    /* Breakpoints */
    @media (min-width: 768px) {
        .hero {
            grid-template-columns: 1fr 1fr;
        }
        .grid-2 { grid-template-columns: repeat(2, 1fr); }
        .grid-3 { grid-template-columns: repeat(3, 1fr); }
        .grid-4 { grid-template-columns: repeat(2, 1fr); }
    }

    @media (min-width: 1024px) {
        .container { padding: 0 40px; }
        .grid-4 { grid-template-columns: repeat(4, 1fr); }
        section { padding: 120px 0; }
    }