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

html,
body {
    height: 100%;
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #0a0a0a;
    color: #fff;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
    min-height: 100vh;
}

h1 {
    margin-bottom: 30px;
    text-align: center;
}

.wallet-section {
    margin-bottom: 30px;
    padding: 20px;
    background: #1a1a1a;
    border-radius: 8px;
}

.account-section {
    margin-bottom: 30px;
    padding: 20px;
    background: #1a1a1a;
    border-radius: 8px;
}

button {
    background: #3b82f6;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: background 0.2s;
}

button:hover:not(:disabled) {
    background: #2563eb;
}

button:disabled {
    background: #374151;
    cursor: not-allowed;
    opacity: 0.6;
}

.status {
    margin-top: 10px;
    padding: 10px;
    border-radius: 4px;
    font-size: 14px;
}

.status.error {
    background: #7f1d1d;
    color: #fca5a5;
}

.status.success {
    background: #14532d;
    color: #86efac;
}

.status.info {
    background: #1e3a8a;
    color: #93c5fd;
}

.bank-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.bank-item {
    padding: 16px;
    background: #262626;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.bank-info {
    flex: 1;
}

.bank-symbol {
    font-weight: 600;
    font-size: 18px;
    margin-bottom: 4px;
}

.bank-balance {
    font-size: 14px;
    color: #a3a3a3;
}

.loading {
    text-align: center;
    padding: 20px;
    color: #a3a3a3;
}

select {
    background: #262626;
    color: white;
    border: 1px solid #404040;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 14px;
    width: 100%;
    margin-bottom: 10px;
}

.guide-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.guide-content {
    background: #1a1a1a;
    border-radius: 12px;
    padding: 40px;
    max-width: 600px;
    width: 100%;
    border: 1px solid #404040;
    margin: auto;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
}

@media (max-height: 700px) {
    .guide-content {
        padding: 20px;
        max-height: calc(100vh - 20px);
    }
}

@media (max-width: 600px) {
    .guide-content {
        padding: 20px;
        border-radius: 8px;
    }

    body {
        padding: 10px;
    }
}

.guide-content h2 {
    margin-bottom: 20px;
    text-align: center;
    color: #fff;
}

.guide-content p {
    margin-bottom: 16px;
    line-height: 1.6;
    color: #d1d5db;
}

.guide-content ul {
    margin: 20px 0;
    padding-left: 24px;
    color: #d1d5db;
}

.guide-content li {
    margin-bottom: 12px;
    line-height: 1.6;
}

.guide-content .guide-button {
    display: block;
    width: 100%;
    margin-top: 30px;
    padding: 14px 24px;
    font-size: 16px;
}

.guide-content .guide-image {
    width: 100%;
    max-width: 100%;
    border-radius: 8px;
    margin: 20px 0;
    border: 1px solid #404040;
}

.guide-content .crank-steps {
    background: #262626;
    padding: 16px;
    border-radius: 6px;
    margin: 16px 0;
}

.guide-content .crank-steps ol {
    margin: 12px 0;
    padding-left: 24px;
    color: #d1d5db;
}

.guide-content .crank-steps li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.main-content {
    display: none;
}

.main-content.visible {
    display: block;
}