:root {
    --primary-color: #9e3f31;
    --secondary-color: #683119;
    --accent-color: #f3722c;
    --light-color: #fffafa;
    --dark-color: #500000;
    --success-color: #550000;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', 'Noto Sans SC', sans-serif;
}

body {
    background-color: #faf7f5;
    color: var(--dark-color);
    line-height: 1.6;
}

p a {
    color: #9e3f31;
    text-decoration: none;
    transition: var(--transition);
    font-weight: bold;
}

p a:hover {
    text-decoration: underline;
    color: #683119;
}

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

header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fffafa;
    padding: 2rem 0;
    text-align: center;
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

#clt-header {
    color: #d0d0ca;
    font-weight: 700;
    font-size: 0.8rem;
    margin-top: -1.2rem;
    margin-bottom: 0.1rem;
}

.search-container {
    max-width: 600px;
    margin: 0 auto 2rem;
    position: relative;
}

.search-box {
    width: 100%;
    padding: 12px 20px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    box-shadow: var(--box-shadow);
    padding-left: 50px;
}

.search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: #550000;
}

.categories {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 2rem;
}

.category-btn {
    background: #fffafa;
    border: none;
    padding: 8px 16px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.category-btn:hover {
    background: var(--primary-color);
    color: #fffafa;
}

.category-btn.active {
    background: var(--success-color);
    color: #fffafa;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 3rem;
}

.tool-card {
    background: #fffafa;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.tool-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #fffafa;
    padding: 20px;
    text-align: center;
    font-size: 2rem;
}

.tool-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.tool-content h3 {
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.tool-content p {
    color: #6c757d;
    margin-bottom: 15px;
    flex-grow: 1;
}

.tool-link {
    display: block;
    background: var(--primary-color);
    color: #fffafa;
    text-align: center;
    padding: 10px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.tool-link:hover {
    background: var(--secondary-color);
}

footer {
    background: var(--dark-color);
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 2rem;
}

.counter {
    background: white;
    color: var(--dark-color);
    padding: 5px 15px;
    border-radius: 30px;
    display: inline-block;
    margin-bottom: 1rem;
    font-weight: 500;
    box-shadow: var(--box-shadow);
}

@media (max-width: 768px) {
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    header h1 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }

    .categories {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 10px;
    }
}