:root {
    --fluent-accent: #87cefa;
    --fluent-accent-light: #87cefa;
    --fluent-bg: #1E1E1E;
    --fluent-card: #252525;
    --fluent-text: #F3F3F3;
    --fluent-text2: #d3d3d3;
    --fluent-text-secondary: #A0A0A0;
    --fluent-border: #3E3E3E;
    --fluent-shadow: rgba(0, 0, 0, 0.3);
}

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

#changing-word {
    transition: opacity 0.3s ease-in-out;
}


body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--fluent-bg);
    color: var(--fluent-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(135, 206, 250, 0.1) 0%, transparent 40%),
                radial-gradient(circle at 80% 70%, rgba(107, 163, 198, 0.1) 0%, transparent 40%);
    z-index: -1;
}

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

.fluent-accent {
    color: var(--fluent-accent);
}

.fluent-add-accent {
    color: var(--fluent-text2);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--fluent-text);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--fluent-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--fluent-text);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--fluent-accent);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.hero {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5rem 5%;
    gap: 3rem;
}

.hero-text {
    flex: 1;
    max-width: 600px;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--fluent-text-secondary);
    margin-bottom: 2rem;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    animation: fadeIn 1.5s ease-out;
}

.screenshot {
    max-width: 100%;
    max-height: 643px;
    border-radius: 8px;
    box-shadow: 0 10px 30px var(--fluent-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.screenshot:hover {
    box-shadow: 13 15px 35px var(--fluent-shadow);
}

.fluent-button {
    display: inline-block;
    background-color: var(--fluent-accent);
    color: rgb(0, 0, 0);
    padding: 0.8rem 1.8rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.fluent-button:hover {
    background-color: var(--fluent-accent-light);
    box-shadow: 0 5px 15px rgba(79, 70, 229, 0.4);
}

.fluent-button.large-button {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.fluent-button-git {
    display: inline-block;
    background-color: transparent;
    color: var(--fluent-accent);
    padding: 0.7rem 1.7rem;
    border: 2px solid var(--fluent-accent);
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.fluent-button-git:hover,
.fluent-button-git:focus {
    background-color: var(--fluent-accent);
    color: #000; 
    box-shadow: 0 5px 15px rgba(79, 70, 229, 0.4);
}

.fluent-button-git svg {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
    vertical-align: middle;
    fill: currentColor;
}

.section {
    padding: 5rem 5%;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 3rem;
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background-color: var(--fluent-card);
    border-radius: 12px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--fluent-border);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px var(--fluent-shadow);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--fluent-accent);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--fluent-text-secondary);
}

.download {
    text-align: center;
    background: linear-gradient(to right, rgba(107, 163, 198, 0.1), rgba(66, 91, 107, 0.05));
    border-radius: 20px;
    margin: 0 5%;
}

.download-content {
    max-width: 600px;
    margin: 0 auto;
}

.small-text {
    font-size: 0.9rem;
    color: var(--fluent-text-secondary);
    margin-top: 1rem;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    color: var(--fluent-text-secondary);
}

.about-content p {
    margin-bottom: 1.5rem;
}

.fluent-footer {
    background-color: var(--fluent-card);
    padding: 3rem 5%;
    margin-top: 5rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-link {
    color: var(--fluent-text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--fluent-text);
}

.footer-copyright {
    text-align: center;
    color: var(--fluent-text-secondary);
    font-size: 0.9rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}