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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    min-height: 100vh;
    color: #e0e0e0;
    line-height: 1.6;
}

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

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

header h1 {
    font-size: 2.5em;
    color: #ffd700;
    margin-bottom: 10px;
}

.network-badge {
    display: inline-block;
    background: #f0b90b;
    color: #000;
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9em;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
}

.card h2 {
    color: #ffd700;
    margin-bottom: 20px;
    font-size: 1.5em;
    border-bottom: 2px solid rgba(255, 215, 0, 0.3);
    padding-bottom: 10px;
}

.card h3 {
    color: #87ceeb;
    margin-bottom: 15px;
    font-size: 1.2em;
}

.function-group {
    background: rgba(0, 0, 0, 0.2);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.input-group {
    margin-bottom: 15px;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    color: #87ceeb;
    font-size: 0.9em;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 1em;
    transition: border-color 0.3s ease;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: #ffd700;
}

.input-group input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.btn {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #ff416c 0%, #ff4b2b 100%);
    color: white;
}

.connection-info {
    display: flex;
    gap: 15px;
    align-items: flex-end;
    margin-bottom: 20px;
}

.connection-info .input-group {
    flex: 1;
    margin-bottom: 0;
}

.status-info {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px;
    border-radius: 8px;
}

.status-info p {
    margin-bottom: 5px;
}

.status-info span {
    color: #ffd700;
    font-weight: bold;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.info-item {
    background: rgba(0, 0, 0, 0.2);
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #ffd700;
}

.info-item label {
    display: block;
    color: #87ceeb;
    font-size: 0.85em;
    margin-bottom: 5px;
}

.info-item span {
    font-weight: bold;
    word-break: break-all;
    color: #fff;
}

.user-info {
    margin-top: 20px;
}

.user-info h3 {
    margin-top: 25px;
}

.hidden {
    display: none;
}

.tx-log {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px;
    border-radius: 8px;
    max-height: 300px;
    overflow-y: auto;
}

.tx-log .empty-log {
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
    font-style: italic;
}

.tx-entry {
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
    font-size: 0.9em;
}

.tx-entry.success {
    background: rgba(56, 239, 125, 0.1);
    border-left: 4px solid #38ef7d;
}

.tx-entry.error {
    background: rgba(255, 75, 43, 0.1);
    border-left: 4px solid #ff4b2b;
}

.tx-entry.pending {
    background: rgba(255, 215, 0, 0.1);
    border-left: 4px solid #ffd700;
}

.tx-entry .time {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.8em;
}

.tx-entry .message {
    margin-top: 5px;
}

.tx-entry a {
    color: #87ceeb;
    text-decoration: none;
}

.tx-entry a:hover {
    text-decoration: underline;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 215, 0, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 215, 0, 0.5);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    header h1 {
        font-size: 1.8em;
    }

    .connection-info {
        flex-direction: column;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .btn {
        width: 100%;
    }
}

/* Loading animation */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}