/* Universal box-sizing for easier layout management */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f7f9;
    color: #333;
    line-height: 1.6;
}

.app-header {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.app-header h1 {
    margin: 0;
    font-size: 1.8rem;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-link {
    color: #ecf0f1;
    text-decoration: none;
    margin-left: 1.5rem;
    padding: 0.5rem 1rem;
    transition: color 0.3s, background-color 0.3s;
    border-radius: 5px;
}

.nav-link:hover, .nav-link.active {
    color: #3498db;
    background-color: rgba(52, 152, 219, 0.1);
}

/* Mobile Navigation */
.mobile-nav {
    display: none; /* Hidden by default */
    flex-direction: column;
    background-color: #34495e;
    padding: 1rem;
    position: absolute;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.mobile-nav.active {
    display: flex;
}

.menu-toggle {
    background: none;
    border: none;
    color: #ecf0f1;
    font-size: 1.5rem;
    cursor: pointer;
    display: none; /* Hidden by default, shown on mobile */
}


.container {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

.metrics-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-card {
    background-color: #ffffff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.metric-card:hover {
    transform: translateY(-5px);
}

.metric-card h3 {
    margin-top: 0;
    color: #7f8c8d;
    font-size: 1rem;
}

.metric-card p {
    font-size: 2.2rem; /* Slightly larger for impact */
    font-weight: bold;
    margin: 0.5rem 0 0;
    color: #2c3e50;
}

.chart-panel, .action-panel {
    background-color: #ffffff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
    /* --- NEW/MODIFIED STYLES FOR CHART PANEL --- */
    position: relative; /* Establish positioning context for absolute children if any */
    height: 400px; /* Give the panel a fixed height */
    overflow: hidden; /* Hide anything that might overflow */
    display: flex; /* Use flexbox to help center content vertically */
    flex-direction: column;
    justify-content: center; /* Center vertically */
    align-items: center; /* Center horizontally */
    /* --- END NEW/MODIFIED STYLES --- */
}

.chart-panel h2 {
    margin-top: 0;
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.cta-button {
    background-color: #2ecc71;
    color: #ffffff;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 8px; /* Slightly more rounded */
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    display: block;
    width: 100%;
    text-align: center;
}

.cta-button:hover {
    background-color: #27ae60;
    transform: translateY(-2px);
}

canvas {
    max-width: 100%;
    /* Original height was 300px, let's allow it to take full height of its container now */
    height: 100%; /* Allows canvas to take full height of its flex parent .chart-panel */
    display: block; /* Ensure canvas behaves as a block element */
}

/* Slider Specific Styles */
.slider-container {
    position: relative;
    width: 100%;
    max-width: 100%; /* Ensure it spans full width */
    overflow: hidden;
    margin-bottom: 2rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px; /* Rounded corners for the slider */
}

.slider-wrapper {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slide {
    min-width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #ffffff;
    text-align: center;
    flex-shrink: 0; /* Prevent slides from shrinking */
}

.slide img {
    width: 100%;
    height: 400px; /* Fixed height for slider images */
    object-fit: cover; /* Cover the area, cropping if necessary */
    filter: brightness(60%); /* Darken image for text readability */
}

.slide-content {
    position: absolute;
    padding: 2rem;
    max-width: 80%;
    z-index: 1; /* Ensure text is above image */
}

.slide-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #ecf0f1;
}

.slide-content p {
    font-size: 1.2rem;
    color: #bdc3c7;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: #ffffff;
    border: none;
    padding: 1rem 0.8rem;
    cursor: pointer;
    font-size: 1.5rem;
    z-index: 2;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.slider-btn:hover {
    background-color: rgba(0, 0, 0, 0.7);
}

.slider-btn.prev {
    left: 1rem;
}

.slider-btn.next {
    right: 1rem;
}

.slider-dots {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 2;
}

.dot {
    width: 12px;
    height: 12px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
}

.dot.active {
    background-color: #3498db;
    transform: scale(1.2);
}

/* Footer Specific Styles */
.app-footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 3rem 2rem 1rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    gap: 2rem;
    border-top: 5px solid #3498db; /* Accent color */
}

.footer-section {
    flex: 1;
    min-width: 250px; /* Minimum width for columns before wrapping */
}

.footer-section h3, .footer-section h4 {
    color: #3498db;
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section p, .footer-section ul {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: #bdc3c7;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li a {
    color: #ecf0f1;
    text-decoration: none;
    display: block;
    padding: 0.25rem 0;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: #3498db;
}

.social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-icons a {
    color: #ecf0f1;
    font-size: 1.5rem;
    transition: color 0.3s;
}

.social-icons a:hover {
    color: #3498db;
}

.footer-bottom {
    width: 100%;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: #7f8c8d;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .app-header h1 {
        font-size: 1.6rem;
    }
    .app-header nav .nav-link {
        margin-left: 1rem;
        padding: 0.4rem 0.8rem;
    }
    .slide img {
        height: 350px;
    }
    .slide-content h2 {
        font-size: 2rem;
    }
    .slide-content p {
        font-size: 1.1rem;
    }
    .footer-section {
        min-width: 200px;
    }
}

@media (max-width: 768px) {
    .app-header {
        padding: 1rem 1.5rem;
    }
    .main-nav .nav-link {
        display: none; /* Hide desktop nav links */
    }
    .menu-toggle {
        display: block; /* Show hamburger menu */
    }
    .container {
        padding: 1.5rem;
    }
    .metrics-panel {
        grid-template-columns: 1fr; /* Stack metric cards on smaller screens */
        gap: 1rem;
    }
    .metric-card p {
        font-size: 1.8rem;
    }
    .slide img {
        height: 300px;
    }
    .slide-content h2 {
        font-size: 1.8rem;
    }
    .slide-content p {
        font-size: 1rem;
    }
    .slider-btn {
        padding: 0.8rem 0.6rem;
        font-size: 1.2rem;
    }
    .slider-dots {
        bottom: 0.5rem;
    }
    .app-footer {
        flex-direction: column; /* Stack footer sections vertically */
        align-items: center;
        text-align: center;
        padding: 2rem 1rem 0.5rem;
    }
    .footer-section {
        min-width: 100%;
        margin-bottom: 1.5rem;
    }
    .footer-section:last-of-type {
        margin-bottom: 0;
    }
    .social-icons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .app-header h1 {
        font-size: 1.4rem;
    }
    .container {
        padding: 1rem;
    }
    .metric-card {
        padding: 1rem;
    }
    .metric-card h3 {
        font-size: 0.9rem;
    }
    .metric-card p {
        font-size: 1.5rem;
    }
    .slide img {
        height: 250px;
    }
    .slide-content h2 {
        font-size: 1.5rem;
    }
    .slide-content p {
        font-size: 0.9rem;
    }
    .cta-button {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
    .app-footer {
        padding: 1.5rem 0.5rem 0.5rem;
    }
    .footer-section h3, .footer-section h4 {
        font-size: 1.1rem;
    }
    .footer-section p, .footer-section ul {
        font-size: 0.85rem;
    }
}