/* CSS Custom Properties */
:root {
    --primary-bg: #0a0a0a;
    --secondary-bg: #1a1a1a;
    --accent-bg: #2a2a2a;
    --primary-blue: #007acc;
    --accent-blue: #4a9eff;
    --success-green: #00d4aa;
    --warning-orange: #ff9500;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --border-color: #444;
    --shadow-light: rgba(0,0,0,0.3);
    --shadow-medium: rgba(0,0,0,0.5);
    --shadow-heavy: rgba(0,0,0,0.6);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Header styles */
header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

header h1 {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    text-shadow: 2px 2px 4px var(--shadow-light);
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.8;
    font-weight: 300;
    margin-bottom: 25px;
}

.contact-info {
    background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--accent-bg) 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 4px 12px var(--shadow-light);
}

.contact-info p {
    margin: 8px 0;
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.contact-info a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: var(--accent-blue);
    text-decoration: underline;
}

/* Main content */
main {
    background: var(--secondary-bg);
    border-radius: 24px;
    padding: 50px;
    box-shadow: 0 25px 50px var(--shadow-heavy);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
}

/* Input section */
.input-section {
    margin-bottom: 40px;
}

.input-label {
    display: block;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.input-container {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#questionInput {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--accent-bg);
    color: var(--text-primary);
}

#questionInput:focus {
    outline: none;
    border-color: var(--primary-blue);
    background: var(--secondary-bg);
    box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.1);
}

#submitBtn {
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-blue) 100%);
    color: var(--text-primary);
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 100px;
    position: relative;
    overflow: hidden;
}

#submitBtn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(0, 122, 204, 0.4);
}

#submitBtn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Response section */
.response-section {
    margin-bottom: 40px;
    padding: 30px;
    background: var(--accent-bg);
    border-radius: 16px;
    border-left: 4px solid var(--primary-blue);
    box-shadow: 0 8px 24px var(--shadow-light);
}

.response-section h3 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.3rem;
    font-weight: 600;
}

.response-content {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* Markdown content styling */
.response-content h1,
.response-content h2,
.response-content h3,
.response-content h4,
.response-content h5,
.response-content h6 {
    color: var(--text-primary);
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}

.response-content ul,
.response-content ol {
    margin: 1em 0;
    padding-left: 2em;
}

.response-content li {
    margin: 0.5em 0;
}

.response-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

.response-content p {
    margin: 1em 0;
}

.response-content code {
    background: var(--secondary-bg);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--accent-blue);
}

/* Skills Missing or Lacking section - invisible but selectable (visible on Command-A) */
.response-content .skills-missing-section {
    font-size: 0.5rem !important;
    line-height: 1.2;
    color: var(--accent-bg); /* Match background - invisible but selectable */
}

.response-content .skills-missing-section h3 {
    font-size: 0.5rem !important;
    margin-top: 0.5em;
    margin-bottom: 0.3em;
    color: var(--accent-bg); /* Match background - invisible but selectable */
    font-weight: 400;
}

.response-content .skills-missing-section ul {
    font-size: 0.5rem !important;
    margin: 0.3em 0;
    padding-left: 1.2em;
    color: var(--accent-bg); /* Match background - invisible but selectable */
}

.response-content .skills-missing-section li {
    font-size: 0.5rem !important;
    margin: 0.2em 0;
    color: var(--accent-bg); /* Match background - invisible but selectable */
}

.response-content pre {
    background: var(--secondary-bg);
    padding: 1em;
    border-radius: 8px;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

/* Examples section */
.examples-section h3 {
    color: var(--text-primary);
    margin-bottom: 25px;
    font-size: 1.4rem;
    font-weight: 700;
    text-align: center;
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.example-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--accent-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1rem;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.example-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

.example-card:hover::before {
    left: 100%;
}

.example-card:hover {
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-blue));
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 122, 204, 0.3);
}

.example-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Accessibility improvements */
*:focus {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #ffffff;
        --primary-blue: #4a9eff;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    main {
        padding: 30px 20px;
        border-radius: 20px;
    }
    
    .input-container {
        flex-direction: column;
        gap: 15px;
    }
    
    #submitBtn, .analyze-button {
        width: 100%;
        padding: 16px 24px;
        font-size: 1.1rem;
    }
    
    .examples-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .example-card {
        padding: 18px;
        font-size: 0.95rem;
    }
    
    .job-analysis-section {
        padding: 25px 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 15px 10px;
    }
    
    header h1 {
        font-size: 1.8rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    main {
        padding: 25px 15px;
    }
    
    .contact-info {
        padding: 15px;
    }
    
    .tab-button {
        padding: 10px 12px;
        font-size: 0.85rem;
    }
}

/* Model selection styles */
.model-selection {
    margin-top: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.model-label {
    font-size: 0.9rem;
    color: #ccc;
    font-weight: 500;
    white-space: nowrap;
}

.model-select {
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 0.9rem;
    min-width: 180px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.model-select:hover {
    border-color: var(--accent-blue);
    background: var(--accent-bg);
}

.model-select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.2);
}

.model-select option {
    background: var(--secondary-bg);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .model-selection {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .model-select {
        width: 100%;
        min-width: auto;
    }
}

/* Job Analysis Section */
.job-analysis-section {
    margin-top: 40px;
    padding: 30px;
    background: var(--accent-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 24px var(--shadow-light);
}

.job-analysis-section h3 {
    color: var(--text-primary);
    margin-bottom: 25px;
    font-size: 1.4rem;
    font-weight: 700;
    text-align: center;
}

.job-analysis-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}


.input-tabs {
    display: flex;
    gap: 4px;
    background: var(--secondary-bg);
    padding: 4px;
    border-radius: 12px;
    margin-bottom: 25px;
}

.tab-button {
    flex: 1;
    padding: 12px 16px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.tab-button.active {
    background: var(--primary-blue);
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0, 122, 204, 0.3);
}

.tab-button:hover:not(.active) {
    background: var(--accent-bg);
    color: var(--text-primary);
}

.tab-content {
    display: none;
}

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

#jobDescriptionText {
    width: 100%;
    padding: 15px;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    line-height: 1.5;
    resize: vertical;
    min-height: 100px;
    transition: all 0.3s ease;
}

#jobDescriptionText:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.2);
    background: var(--accent-bg);
}

.file-upload-area {
    position: relative;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    background: var(--secondary-bg);
    transition: all 0.3s ease;
}

.file-upload-area:hover {
    border-color: var(--primary-blue);
    background: var(--accent-bg);
    transform: translateY(-2px);
}

.file-upload-area.dragover {
    border-color: var(--success-green);
    background: rgba(0, 212, 170, 0.1);
}

#jobDescriptionFile {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.upload-icon {
    font-size: 2rem;
}

.url-input {
    width: 100%;
    padding: 15px;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.url-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.2);
    background: var(--accent-bg);
}

.analyze-button {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-blue) 100%);
    color: var(--text-primary);
    border: none;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    align-self: flex-start;
    position: relative;
    overflow: hidden;
}

.analyze-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(0, 122, 204, 0.4);
}

.analyze-button:disabled {
    background: var(--border-color);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-loading {
    display: none;
}

.analyze-button:disabled .btn-text {
    display: none;
}

.analyze-button:disabled .btn-loading {
    display: inline;
}

@media (max-width: 768px) {
    .input-tabs {
        flex-direction: column;
    }
    
    .tab-button {
        text-align: center;
    }
    
    .analyze-button {
        width: 100%;
        align-self: stretch;
    }
}