/* --- Global Settings & Variables --- */
:root {
    --bg-color: #121212;
    --surface-color: #1e1e1e;
    --primary-color: #007bff;
    --primary-hover-color: #0056b3;
    --text-color: #e0e0e0;
    --text-muted-color: #a0a0a0;
    --border-color: #333;
}

/* --- Base & Typography --- */
body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Poppins', sans-serif;
    margin: 0;
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3rem;
    color: #fff;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #fff;
}

p {
    margin-bottom: 1rem;
    color: var(--text-muted-color);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #fff;
}

/* --- Header & Hero Section --- */
.site-header {
    background-color: var(--surface-color);
    padding: 20px 0;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
    margin: 0;
    padding: 0;
}

.hero {
    text-align: center;
    padding: 80px 0;
}

.hero .subtitle {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 30px;
}

.cta-button {
    background-color: var(--primary-color);
    color: #fff;
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: background-color 0.3s ease, transform 0.2s ease;
    display: inline-block;
}

.cta-button:hover {
    background-color: var(--primary-hover-color);
    transform: translateY(-3px);
    color: #fff;
}

.hero-image-placeholder {
    margin-top: 50px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden; 
    background-color: var(--bg-color);
}

/* --- Features Section --- */
.features-section {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--surface-color);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.feature-icon svg {
    width: 48px;
    height: 48px;
    stroke: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #fff;
}

/* --- How It Works Section --- */
.how-it-works-section {
    background-color: var(--surface-color);
    padding: 80px 0;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.step-card {
    text-align: center;
}

.step-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.step-image-placeholder {
    border: 1px solid var(--border-color);
    height: 200px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background-color: var(--bg-color);
}

.step-image-placeholder a {
    display: block;
    width: 100%;
    height: 100%;
}

/* --- Bottom CTA Section --- */
.cta-bottom-section {
    text-align: center;
    padding: 80px 20px;
}

.cta-bottom-section h2 {
    margin-bottom: 1rem;
}
.cta-bottom-section p {
    margin-bottom: 2rem;
}

/* --- Footer --- */
.site-footer {
    background-color: var(--surface-color);
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
}

.site-footer p {
    margin: 0;
    color: var(--text-muted-color);
}

.responsive-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.lightbox-trigger:hover .responsive-image {
    transform: scale(1.05);
}

/* --- NEW: Lightbox Modal Styles --- */
.lightbox {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    align-items: center;
    justify-content: center;
}

.lightbox-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90vh;
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
}

.lightbox-close:hover,
.lightbox-close:focus {
    color: var(--text-muted-color);
    text-decoration: none;
}


/* --- Responsive Design --- */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    h2 {
        font-size: 2rem;
    }
    .main-nav {
        flex-direction: column;
        gap: 15px;
    }
    .main-nav ul {
        gap: 20px;
    }
}
.version-info {
    font-size: 0.9rem;
    color: var(--text-muted-color);
    margin-top: 15px;
    font-style: italic;
}
/* --- NEW: Feedback Section Styles --- */
.feedback-section {
    background-color: var(--surface-color);
    text-align: center;
    padding: 80px 20px;
}

.feedback-section h2 {
    margin-bottom: 1rem;
}

.feedback-section p {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-info {
    margin-top: 2rem;
    font-size: 1.1rem;
    font-weight: 600;
}