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

:root {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-card: #252525;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #6b6b6b;
    --accent: #3b82f6;
    --border: #333333;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

.navbar {
    position: fixed;
    top: 20px;
    left: 20px;
    right: 20px;
    background-color: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 600;
    transition: color 0.3s ease;
    position: relative;
    font-size: 0.95rem;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

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

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-primary);
    padding: 6rem 2rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
}

.hero-logo {
    width: 60vw;
    max-width: 500px;
    height: auto;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInScale 1s ease-out forwards;
}

.hero-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.3s forwards;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.6s forwards;
}

.about {
    padding: 6rem 2rem;
    background-color: var(--bg-secondary);
}

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

.section-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.about-content {
    background-color: var(--bg-card);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.about-content.visible {
    opacity: 1;
    transform: translateY(0);
}

.about-avatar {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.avatar-img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--accent);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.6s forwards;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer {
    background-color: var(--bg-card);
    color: var(--text-muted);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border);
}

.footer-content p {
    font-size: 0.9rem;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .navbar {
        top: 10px;
        left: 10px;
        right: 10px;
        padding: 0.75rem 1rem;
    }

    .nav-menu {
        gap: 1rem;
    }

    .nav-link {
        font-size: 0.85rem;
    }

    .hero-logo {
        width: 50vw;
        max-width: 250px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .about-content {
        padding: 2rem;
    }

    .avatar-img {
        width: 150px;
        height: 150px;
        animation: fadeInUp 1s ease-out 0.6s forwards;
    }

    .about-text p {
        font-size: 0.95rem;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        top: 5px;
        left: 5px;
        right: 5px;
    }

    .hero-logo {
        width: 120px;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .about-content {
        padding: 1.5rem;
    }

    .about-text p {
        font-size: 0.9rem;
    }
}