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

html, body {
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
    background-image: url('background.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    gap: 25px;
    padding: 20px;
}

.link-btn {
    display: block;
    width: 280px;
    max-width: 90vw;
    padding: 18px 30px;
    font-size: 22px;
    font-weight: 600;
    color: #ffffff;
    text-decoration: none;
    text-align: center;
    background: rgba(0, 0, 0, 0.72);
    border: 2px solid rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    letter-spacing: 0.5px;
    backdrop-filter: blur(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.link-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 1);
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.contract-btn {
    font-family: 'Courier New', monospace;
    font-size: 18px;
    font-weight: 400;
    word-break: break-all;
}