:root {
    --primary-color: #4a6fa5;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --white: #ffffff;
    --black: #000000;
    --gray: #e9ecef;
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;
    --border-radius: 4px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--black);
    background-color: var(--white);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.nav ul {
    display: flex;
    list-style: none;
}

.nav ul li {
    margin-left: 2rem;
}

.nav ul li a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
    font-family: var(--font-primary);
}

.nav ul li a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background-color: var(--white);
    padding: 120px 0 80px;
    text-align: center;
}

.hero-content h2 {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.tagline {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    color: var(--secondary-color);
}

.cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    font-family: var(--font-primary);
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.cta-button:hover {
    background-color: #3a5a8a;
    transform: translateY(-2px);
}

/* Main Content */
.main-content {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.analysis-section {
    background-color: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 40px;
}

.analysis-section h2 {
    font-family: var(--font-primary);
    font-size: 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--dark-color);
}

.disclaimer {
    background-color: #fff3cd;
    border-left: 4px solid var(--warning-color);
    padding: 15px;
    margin-bottom: 2rem;
    border-radius: var(--border-radius);
}

.disclaimer p {
    margin: 0;
    font-size: 0.95rem;
    color: #856404;
}

/* Recording Interface */
.recording-interface {
    text-align: center;
    margin: 2rem 0;
}

.recording-controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.record-button, .stop-button, .analyze-button {
    padding: 12px 25px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    min-width: 150px;
}

.record-button {
    background-color: var(--success-color);
    color: var(--white);
}

.record-button:hover {
    background-color: #218838;
}

.stop-button {
    background-color: var(--danger-color);
    color: var(--white);
}

.stop-button:hover {
    background-color: #c82333;
}

.analyze-button {
    background-color: var(--primary-color);
    color: var(--white);
}

.analyze-button:hover {
    background-color: #3a5a8a;
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.recording-status {
    margin: 2rem 0;
    min-height: 80px;
}

.recording-indicator {
    width: 20px;
    height: 20px;
    background-color: var(--danger-color);
    border-radius: 50%;
    display: inline-block;
    margin-right: 10px;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(220, 53, 69, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(220, 53, 69, 0);
    }
}

.recording-time {
    font-size: 1.5rem;
    font-weight: 600;
    font-family: var(--font-primary);
    margin-top: 1rem;
}

.audio-playback {
    margin-top: 1.5rem;
}

audio {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    display: block;
}

/* Results Section */
.results-section {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-top: 2rem;
}

.results-section h3 {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--dark-color);
}

.results-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 2rem;
}

.condition-interpretation, .recommendations {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: var(--border-radius);
}

.condition-interpretation h4, .recommendations h4 {
    font-family: var(--font-primary);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.result-text {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.confidence-meter {
    display: flex;
    align-items: center;
    margin-top: 1rem;
}

.confidence-bar {
    flex-grow: 1;
    height: 10px;
    background-color: #e9ecef;
    border-radius: 5px;
    margin: 0 10px;
    overflow: hidden;
}

.confidence-level {
    height: 100%;
    background-color: var(--success-color);
    width: 0%;
    transition: width 1s ease;
}

.recommendations-list {
    list-style-type: none;
    padding-left: 0;
}

.recommendations-list li {
    background-color: var(--white);
    padding: 12px 15px;
    margin-bottom: 10px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.analysis-footer {
    text-align: center;
}

/* About Section */
.about-section {
    padding: 60px 0;
    background-color: var(--white);
}

.about-section h2 {
    font-family: var(--font-primary);
    font-size: 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--dark-color);
}

.about-section p {
    max-width: 800px;
    margin: 0 auto 2rem;
    text-align: center;
    font-size: 1.1rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 3rem;
}

.feature {
    text-align: center;
    padding: 20px;
}

.feature h3 {
    font-family: var(--font-primary);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.feature p {
    text-align: left;
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h4 {
    font-family: var(--font-primary);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--light-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid #495057;
    padding-top: 20px;
    text-align: center;
    font-size: 0.9rem;
}

/* Utility Classes */
.hidden {
    display: none;
}

/* Responsive Design */
@media (max-width: 992px) {
    .results-container {
        grid-template-columns: 1fr;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        padding: 1rem 20px;
    }
    
    .logo {
        margin-bottom: 1rem;
    }
    
    .nav ul {
        flex-direction: column;
        text-align: center;
    }
    
    .nav ul li {
        margin: 0.5rem 0;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .tagline {
        font-size: 1rem;
    }
    
    .analysis-section {
        padding: 20px;
    }
    
    .recording-controls {
        flex-direction: column;
        align-items: center;
    }
    
    .record-button, .stop-button, .analyze-button {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .main-content {
        padding: 40px 0;
    }
}

/* Sample Audio Section Styles */
.sample-audio-section {
    margin-top: 40px;
    padding: 30px;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.sample-audio-section h3 {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--primary-color);
    text-align: center;
}

.sample-audio-section p {
    text-align: center;
    margin-bottom: 30px;
    color: var(--secondary-color);
}

.sample-audio-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.sample-option {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 20px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    cursor: pointer;
}

.sample-option:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.sample-option h4 {
    font-family: var(--font-primary);
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.sample-option p {
    font-size: 0.9rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
    text-align: center;
}

.sample-button {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.sample-button:hover {
    background-color: #3a5a8a;
}

.sample-option.selected {
    border: 2px solid var(--primary-color);
    background-color: rgba(74, 111, 165, 0.1);
}

.sample-option.selected .sample-button {
    background-color: var(--success-color);
}

/* Responsive Styles for Sample Audio */
@media (max-width: 768px) {
    .sample-audio-options {
        grid-template-columns: 1fr;
    }
    
    .sample-audio-section {
        padding: 20px;
    }
}