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

html, body {
    width: 100%;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    -webkit-font-smoothing: antialiased;
}

body {
    padding-bottom: 100px;
}

.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px 15px;
    text-align: center;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header h1 {
    font-size: 18px;
    font-weight: 500;
}

.container {
    padding: 15px;
}

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

.tool-item {
    display: flex;
    align-items: center;
    background: #fff;
    border-radius: 12px;
    padding: 16px;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.tool-item:active {
    transform: scale(0.98);
    box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.tool-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tool-info {
    flex: 1;
    margin-left: 12px;
}

.tool-info h3 {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 4px;
}

.tool-info p {
    font-size: 13px;
    color: #999;
}

.arrow {
    font-size: 24px;
    color: #ccc;
}

.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px;
    text-align: center;
    background: #fff;
    border-top: 1px solid #eee;
}

.footer p {
    font-size: 12px;
    color: #999;
}

.footer a {
    color: #667eea;
    text-decoration: none;
}