body {
    margin: 0;
    font-family: 'Arial', sans-serif;
    color: #fff;
    line-height: 1.6;
    background: url('bg.webp') no-repeat center center fixed;
    background-size: cover;
    scroll-behavior: smooth;
}

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background: rgba(0, 0, 0, 0.8);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-sizing: border-box;
}

.site-header .logo {
    font-size: 1.2rem;
    font-weight: bold;
    color: #fff;
}

.navigation {
    display: flex;
    gap: 20px;
}

.navigation ul {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}

.navigation a {
    text-decoration: none;
    color: #fff;
    font-weight: bold;
    transition: color 0.3s ease;
}

.navigation a:hover {
    color: #00aced;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger div {
    width: 25px;
    height: 3px;
    background: #fff;
    transition: all 0.3s;
}

@media (max-width: 768px) {
    .navigation {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px;
        right: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.9);
        padding: 20px;
        box-sizing: border-box;
        text-align: center;
    }

    .navigation.active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }
}

.intro-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    text-align: center;
    background: rgba(0, 0, 0, 0.6);
    padding: 20px;
    box-sizing: border-box;
}

.intro-section h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.intro-section p {
    font-size: 1rem;
}

@media (max-width: 768px) {
    .intro-section h1 {
        font-size: 1.5rem;
    }

    .intro-section p {
        font-size: 0.9rem;
    }
}

section {
    padding: 40px 20px;
    max-width: 90%;
    margin: 0 auto;
    text-align: center;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 10px;
    margin-bottom: 30px;
    box-sizing: border-box;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}

.portfolio-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.portfolio-item:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
}

.contact-section a {
    color: #00aced;
    text-decoration: none;
}

.contact-section a:hover {
    text-decoration: underline;
}

.site-footer {
    text-align: center;
    padding: 15px;
    background: rgba(0, 0, 0, 0.8);
}

@media (max-width: 320px) {
    .intro-section h1 {
        font-size: 1.3rem;
    }

    .intro-section p {
        font-size: 0.8rem;
    }

    section {
        padding: 20px;
        font-size: 0.9rem;
    }

    .portfolio-item {
        padding: 10px;
    }
}


.profile-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin-bottom: 20px;
}

.download-btn {
    display: inline-block;
    padding: 10px 20px;
    background: #00aced;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s ease;
    margin-top: 20px;
}

.download-btn:hover {
    background: #007bb5;
}