:root {
    --primary: #8a2be2;
    --primary-dark: #6a1cb9;
    --secondary: #4b0082;
    --accent: #e6e6fa;
    --text: #ffffff;
    --text-secondary: #d0d0e1;
    --background: #1a1a2e;
    --card-bg: #2d2d44;
    --card-border: #3a3a5c;
    --success: #4ade80;
    --warning: #fbbf24;
    --error: #f87171;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    padding: 0;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(138, 43, 226, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 80% 80%, rgba(75, 0, 130, 0.1) 0%, transparent 20%);
}

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

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--primary);
}

.logo h1 {
    font-size: 2.2rem;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 5px;
}

.logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

#wallet-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

#connect-wallet {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(138, 43, 226, 0.3);
}

#connect-wallet:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(138, 43, 226, 0.4);
}

#wallet-address {
    background-color: rgba(138, 43, 226, 0.2);
    padding: 8px 15px;
    border-radius: 50px;
    font-size: 0.9rem;
    border: 1px solid var(--primary);
}

.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--card-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(138, 43, 226, 0.25);
}

.card h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    font-size: 1.3rem;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--card-border);
}

.icon {
    font-size: 1.5rem;
}

.balance-info p, .price-info p, .referral-info p {
    margin: 12px 0;
    display: flex;
    justify-content: space-between;
}

.balance-info span {
    font-weight: bold;
    color: var(--accent);
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
}

select, input {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    border: 1px solid var(--card-border);
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--text);
    font-size: 1rem;
}

select:focus, input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(138, 43, 226, 0.3);
}

.action-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    padding: 15px 0;
    border-radius: 12px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1rem;
    transition: all 0.3s ease;
    width: 100%;
    margin-top: 10px;
    box-shadow: 0 4px 15px rgba(138, 43, 226, 0.3);
}

.action-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(138, 43, 226, 0.4);
}

.referral-link {
    margin-top: 20px;
    background: rgba(138, 43, 226, 0.1);
    padding: 15px;
    border-radius: 12px;
    border: 1px solid var(--primary);
}

#invite-link {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text);
    padding: 12px;
    border-radius: 8px;
    margin: 10px 0;
    width: 100%;
    border: 1px solid var(--card-border);
}

#copy-invite {
    background-color: var(--secondary);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
    width: 100%;
}

#copy-invite:hover {
    background-color: var(--primary-dark);
}

.wide {
    grid-column: span 2;
}

.transaction-list {
    margin-top: 15px;
}

.transaction-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    padding: 12px 0;
    border-bottom: 1px solid var(--card-border);
    font-weight: bold;
    color: var(--text-secondary);
}

.transaction-item {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.transaction-item:last-child {
    border-bottom: none;
}

footer {
    text-align: center;
    padding: 30px 0 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--card-border);
    margin-top: 20px;
}

#contract-address {
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--accent);
}

/* 移动端适配 */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .dashboard {
        grid-template-columns: 1fr;
    }
    
    .wide {
        grid-column: span 1;
    }
    
    .transaction-header, .transaction-item {
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
        font-size: 0.85rem;
    }
}

/* 加载动画 */
.loader {
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}