body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.logo {
    max-width: 250px;
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.card {
    background: #1c1c1c;
    border-radius: 16px;
    padding: 40px;
    max-width: 600px;
    width: 100%;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    animation: slideUp 0.5s ease-out;
}

h1 {
    font-size: 2.2em;
    margin: 0 0 10px;
    color: #ffffff;
    text-align: center;
}

.description {
    font-size: 1.1em;
    color: #cccccc;
    text-align: center;
    margin-bottom: 40px; /* Increased spacing above button */
    line-height: 1.5;
}

.exchange-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

h2 {
    font-size: 1.6em;
    color: #00aaff;
    margin: 0 0 10px;
}

.step {
    display: flex;
    align-items: center;
    gap: 15px;
    width: 100%;
    max-width: 400px;
}

.step-number {
    width: 30px;
    height: 30px;
    background: #00aaff;
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

button {
    padding: 12px 24px;
    font-size: 1em;
    font-weight: 600;
    background: linear-gradient(90deg, #00aaff, #0077cc);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 170, 255, 0.5);
}

button:active {
    transform: translateY(0);
}

.copy-btn {
    padding: 6px 12px;
    font-size: 0.9em;
    background: linear-gradient(90deg, #6b7280, #4b5563);
}

.copy-btn:hover {
    box-shadow: 0 4px 12px rgba(107, 114, 128, 0.5);
}

.warning {
    color: #ffcc00;
    font-weight: bold;
    text-align: center;
    margin-top: 10px;
}

.error {
    color: #ff4444;
    font-weight: bold;
    text-align: center;
    margin-top: 10px;
}

.wallet-details {
    flex: 1;
}

#walletInfo p {
    background: #2a2a2a;
    padding: 10px;
    border-radius: 8px;
    width: 100%;
    max-width: 400px;
    word-break: break-all;
    font-size: 0.9em;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 600px) {
    .card { padding: 20px; }
    .logo { max-width: 200px; }
    #walletInfo p { max-width: 100%; }
}