:root {
    --primary-color: #32ff7e; /* Lime Green */
    --secondary-color: #ffffff; /* White */
    --background-color: #000000; /* Black */
    --text-color: #ffffff; /* White */
    --card-background: #1a1a1a;
    --shadow-color: rgba(50, 255, 126, 0.2);
    --font-family: 'Roboto', sans-serif;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
}

header {
    background: linear-gradient(90deg, var(--primary-color), #00a8ff);
    color: #000;
    padding: 2rem 0;
    text-align: center;
    box-shadow: 0 2px 4px var(--shadow-color);
}

h1 {
    font-weight: 700;
    font-size: 2.5rem;
}

.tab-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 20px;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
    background-color: var(--card-background);
    border-radius: 10px;
    padding: 10px;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.tab-button {
    background: none;
    border: none;
    padding: 15px 30px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    transition: all 0.3s ease;
    border-radius: 8px;
}

.tab-button.active, .tab-button:hover {
    background-color: var(--primary-color);
    color: #000;
    box-shadow: 0 4px 8px var(--shadow-color);
}

.tab-content {
    display: none;
}

section {
    background: var(--card-background);
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 12px var(--shadow-color);
}

h2 {
    font-weight: 700;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
}

.wallet-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.wallet-card {
    background: #2a2a2a;
    border: 1px solid #3a3a3a;
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.wallet-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 16px var(--shadow-color);
}

.wallet-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.button {
    display: inline-block;
    background: linear-gradient(90deg, var(--primary-color), #00a8ff);
    color: #000;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 25px;
    margin-top: 15px;
    transition: all 0.3s ease;
    font-weight: 700;
    border: none;
}

.button:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.primary-button {
    background: linear-gradient(90deg, #ff8a00, #e52e71);
}

.os-guide {
    margin-top: 2rem;
    padding: 20px;
    background-color: #2a2a2a;
    border-radius: 8px;
}

.os-guide h3 {
    color: var(--primary-color);
}

pre {
    background-color: #000;
    padding: 15px;
    border-radius: 5px;
    white-space: pre-wrap;
    word-wrap: break-word;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

code {
    font-family: 'Courier New', Courier, monospace;
}

footer {
    text-align: center;
    padding: 20px;
    background-color: #1a1a1a;
    color: #fff;
    margin-top: 2rem;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}