/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f4f6f8;
}

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

/* Header */
.header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 15px 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Tool cards */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.tool-card {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.tool-card:hover {
    transform: translateY(-5px);
}

/* Tool container */
.tool-container {
    background: #fff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-top: 30px;
}

.tool-input {
    margin-top: 20px;
}

.tool-buttons {
    margin: 20px 0;
    display: flex;
    gap: 10px;
}

.tool-result {
    margin-top: 20px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 4px;
}

/* Forms */
.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-bottom: 15px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

.btn-primary {
    background-color: #007bff;
    color: #fff;
}

.btn-secondary {
    background-color: #6c757d;
    color: #fff;
}

/* Result styles */
.result-container {
    display: grid;
    gap: 20px;
}

.result-item {
    background: #fff;
    padding: 15px;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.result-item h4 {
    margin-bottom: 10px;
    color: #666;
}

/* Responsive design */
@media (max-width: 768px) {
    .tool-grid {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 10px;
    }
    
    .tool-container {
        padding: 15px;
    }
}