/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-gradient: linear-gradient(135deg, #14F195 0%, #9945FF 100%);
    --primary-color: #9945FF;
    --secondary-color: #14F195;
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-card: #242424;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --border-color: #333333;
    --success: #14F195;
    --error: #ff4757;
    --warning: #ffa502;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 12px 48px rgba(153, 69, 255, 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(153, 69, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(20, 241, 149, 0.1) 0%, transparent 50%);
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部样式 */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 0;
    margin-bottom: 30px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.wallet-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.wallet-btn:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 16px rgba(153, 69, 255, 0.3);
    transform: translateY(-2px);
}

.wallet-btn.connected {
    background: var(--primary-gradient);
    border-color: transparent;
}

/* 状态卡片 */
.status-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.status-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.status-label {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.status-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
}

.indicator-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-secondary);
    animation: pulse 2s infinite;
}

.indicator-dot.connected {
    background: var(--success);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 表单卡片 */
.token-form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.token-form-card h2 {
    font-size: 28px;
    margin-bottom: 8px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-description {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 15px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(153, 69, 255, 0.1);
}

.form-group small {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: 500;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

/* 图片上传样式 */
.image-upload-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.image-upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: fit-content;
}

.image-upload-btn:hover {
    border-color: var(--primary-color);
    background: var(--bg-card);
}

.image-preview {
    position: relative;
    width: 200px;
    height: 200px;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid var(--border-color);
    background: var(--bg-secondary);
}

.image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.remove-image-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(255, 71, 87, 0.9);
    border: none;
    color: white;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(4px);
}

.remove-image-btn:hover {
    background: rgba(255, 71, 87, 1);
    transform: scale(1.1);
}

/* 提交按钮 */
.submit-btn {
    width: 100%;
    padding: 16px;
    background: var(--primary-gradient);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    margin-top: 30px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

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

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

/* 历史记录卡片 */
.history-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 30px;
}

.history-card h3 {
    font-size: 22px;
    margin-bottom: 20px;
}

.transaction-item {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    border-left: 4px solid var(--success);
}

.transaction-item h4 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--success);
}

.transaction-detail {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

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

.transaction-detail .label {
    color: var(--text-secondary);
}

.transaction-detail .value {
    color: var(--text-primary);
    font-weight: 600;
    word-break: break-all;
    max-width: 60%;
    text-align: right;
}

.transaction-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    margin-top: 12px;
    transition: opacity 0.3s;
}

.transaction-link:hover {
    opacity: 0.8;
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 30px 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.footer p {
    margin: 5px 0;
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

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

/* 加载模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.loader {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

#loadingText {
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 600;
}

/* Toast 通知 */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    padding: 16px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-weight: 600;
    box-shadow: var(--shadow);
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 999;
    max-width: 400px;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--error);
}

.toast.warning {
    border-left: 4px solid var(--warning);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .logo {
        flex-direction: column;
        gap: 10px;
    }

    .status-card {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .token-form-card {
        padding: 24px 20px;
    }

    .transaction-detail {
        flex-direction: column;
        gap: 5px;
    }

    .transaction-detail .value {
        max-width: 100%;
        text-align: left;
    }

    .toast {
        right: 15px;
        left: 15px;
        bottom: 15px;
    }
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.token-form-card,
.status-card,
.history-card {
    animation: fadeIn 0.5s ease;
}