/* Prime Number Checker Tool Styles */

:root {
    --primary-color: #6f42c1;
    --primary-hover: #5a2d91;
    --secondary-color: #1e293b;
    --accent-color: #17a2b8;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --error-color: #dc3545;
    --light-bg: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --gradient-start: #6f42c1;
    --gradient-end: #1e293b;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --transition: all 0.2s ease-in-out;
}

/* Tool Main Container */
.tool-main {
    padding: 2rem 0;
    background: var(--light-bg);
    min-height: calc(100vh - 200px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Tool Header */
.tool-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: var(--border-radius-lg);
    color: white;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.tool-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.1"><circle cx="30" cy="30" r="2"/></g></svg>');
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.tool-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 1rem 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
}

.tool-header h1 i {
    margin-right: 0.75rem;
    font-size: 2.25rem;
}

.tool-header p {
    font-size: 1.125rem;
    margin: 0;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* Tab Navigation */
.tab-container {
    margin-top: 2rem;
}

.tab-nav {
    display: flex;
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 0.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    gap: 0.25rem;
}

.tab-btn {
    background: none;
    border: none;
    padding: 1rem 1.5rem;
    cursor: pointer;
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    justify-content: center;
    font-size: 1rem;
}

.tab-btn:hover {
    color: var(--primary-color);
    background: var(--light-bg);
    transform: translateY(-1px);
}

.tab-btn.active {
    color: white;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    box-shadow: var(--shadow-sm);
}

.tab-btn i {
    font-size: 1.125rem;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Tool Content Layout */
.tool-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

/* Input Section */
.input-section {
    padding: 2rem;
    background: var(--card-bg);
    border-right: 1px solid var(--border-color);
}

.input-group {
    margin-bottom: 2rem;
}

.input-group label {
    display: flex;
    align-items: center;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.input-group label i {
    margin-right: 0.5rem;
    color: var(--primary-color);
    width: 16px;
}

.input-group input,
.input-group textarea,
.input-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: white;
    box-sizing: border-box;
}

.input-group input:focus,
.input-group textarea:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(111, 66, 193, 0.1);
}

/* Input Actions */
.input-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    border: none;
    padding: 0.875rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    min-height: 48px;
}

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

.btn-icon {
    background: var(--light-bg);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    padding: 0.875rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    min-height: 48px;
}

.btn-icon:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(111, 66, 193, 0.05);
}

/* Quick Examples */
.quick-examples {
    margin-top: 2rem;
}

.quick-examples label {
    display: flex;
    align-items: center;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.quick-examples label i {
    margin-right: 0.5rem;
    color: var(--primary-color);
    width: 16px;
}

.example-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.example-btn {
    background: var(--light-bg);
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.example-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

/* Settings */
.check-settings,
.range-settings,
.generate-settings,
.analyze-settings {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--light-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.checkbox-label {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    cursor: pointer;
}

.checkbox-label:last-child {
    margin-bottom: 0;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
    accent-color: var(--primary-color);
}

/* Result Section */
.result-section {
    padding: 2rem;
    background: var(--light-bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.result-container {
    width: 100%;
    max-width: 100%;
}

.result-placeholder {
    color: var(--text-muted);
    text-align: center;
}

.result-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.result-placeholder p {
    font-size: 1.125rem;
    margin: 0;
}

.result-header {
    margin-bottom: 2rem;
}

.result-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-indicator.prime {
    background: var(--success-color);
    box-shadow: 0 0 0 4px rgba(40, 167, 69, 0.2);
}

.status-indicator.composite {
    background: var(--error-color);
    box-shadow: 0 0 0 4px rgba(220, 53, 69, 0.2);
}

.status-indicator.processing {
    background: var(--warning-color);
    box-shadow: 0 0 0 4px rgba(255, 193, 7, 0.2);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.result-details {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    text-align: left;
}

.result-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-align: center;
}

.result-info {
    display: grid;
    gap: 1rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--light-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.info-label {
    font-weight: 500;
    color: var(--text-primary);
}

.info-value {
    font-weight: 600;
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .tool-content {
        grid-template-columns: 1fr;
    }
    
    .input-section {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .tab-nav {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .tab-btn {
        padding: 0.875rem 1rem;
        justify-content: flex-start;
    }
    
    .tool-header h1 {
        font-size: 2rem;
    }
    
    .tool-header h1 i {
        font-size: 1.75rem;
    }
    
    .input-actions {
        flex-direction: column;
    }
    
    .example-buttons {
        flex-direction: column;
    }
    
    .example-btn {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .tool-header {
        padding: 1.5rem 1rem;
        margin-bottom: 2rem;
    }
    
    .tool-header h1 {
        font-size: 1.75rem;
    }
    
    .input-section,
    .result-section {
        padding: 1.5rem;
    }
    
    .result-number {
        font-size: 1.5rem;
    }
}