/* === Calculator Tools Page === */

.calculator-tools-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    background: #f8fafc;
    border-radius: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

.calculator-tools-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.calculator-tools-header h1 {
    font-size: 2.5rem;
    color: #222;
    margin-bottom: 15px;
}

.calculator-tools-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.6;
}

.calculator-category {
    margin-bottom: 2.5rem;
}

.calculator-category h2 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 25px;
    border-left: 5px solid #4285f4;
    padding-left: 10px;
}

/* Common styles for calculator tool pages (copied from image-tools.css) */
.converter-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.upload-section {
    margin-bottom: 2rem;
}

.upload-area {
    border: 2px dashed var(--primary-color);
    border-radius: 1rem;
    padding: 3rem;
    text-align: center;
    background: #f8fafc;
    transition: all 0.3s ease;
}

.upload-area.dragover {
    background: #f1f5f9;
    border-color: var(--secondary-color);
}

.upload-prompt {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.upload-prompt i {
    font-size: 3rem;
    color: var(--primary-color);
}

.upload-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.upload-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.conversion-options {
    background: white;
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.conversion-options label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.conversion-options select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

.convert-btn {
    width: 100%;
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.convert-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.convert-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Preview section */
.preview-section {
    margin-top: 2rem;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.preview-item {
    background: white;
    padding: 1rem;
    border-radius: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.preview-item img {
    width: 100%;
    height: auto;
    border-radius: 0.25rem;
}

/* Responsive design */
@media (max-width: 768px) {
    .calculator-tools-container {
        padding: 1rem 0.5rem;
        margin: 0 0.5rem;
    }

    .calculator-tools-header h1 {
        font-size: 2rem;
    }

    .calculator-tools-header p {
        font-size: 1rem;
    }

    .calculator-category h2 {
        font-size: 1.5rem;
    }

    .converter-main {
        padding: 1rem;
    }

    .upload-area {
        padding: 2rem;
    }

    .upload-prompt i {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .calculator-tools-container {
        padding: 0.5rem;
        margin: 0 0.25rem;
        border-radius: 0.5rem;
    }

    .calculator-tools-header h1 {
        font-size: 1.8rem;
    }

    .calculator-tools-header p {
        font-size: 0.95rem;
    }

    .calculator-category h2 {
        font-size: 1.3rem;
        margin-bottom: 15px;
    }

    .upload-area {
        padding: 1.5rem;
    }

    .conversion-options {
        padding: 1rem;
    }
}