:root {
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.4);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.2);
    --text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: linear-gradient(45deg, 
        #e0d8c5,  /* Soft beige */
        #f4f5f5,  /* Light blue-gray */
        #e0e1e2,  /* Warm beige */
        #e6e7e8   /* Light gray */
    );
    background-size: 400% 400%;
    animation: gradient 20s ease infinite;
    color: #333;
}

@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

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

nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 0;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.15);
}

.nav-button {
    backdrop-filter: blur(16px);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    box-shadow: var(--glass-shadow);
    color: #333;
    font-size: 1.2rem;
    font-weight: 700;
    padding: 1rem 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-shadow: var(--text-shadow);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
    display: inline-block;
}

.nav-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.15);
}

.nav-button.active {
    background: rgba(255, 255, 255, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.7);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3), 
                inset 0 0 10px rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    position: relative;
}

.nav-button.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 30%;
    height: 3px;
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0), 
        rgba(255, 255, 255, 0.8), 
        rgba(255, 255, 255, 0));
    border-radius: 3px;
}

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

.title-section {
    backdrop-filter: blur(16px);
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    border-radius: 15px;
    box-shadow: var(--glass-shadow);
    padding: 1.5rem 2rem;
    flex: 1;
}

h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: var(--text-shadow);
    letter-spacing: -0.5px;
}

.contact-info {
    font-size: 1rem;
    opacity: 0.9;
}

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

.social-icons a {
    color: #333;
    font-size: 1.5rem;
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.8;
}

.social-icons a:hover {
    transform: translateY(-3px);
    opacity: 1;
}

.banner-container {
    position: relative;
    width: 100%;
    height: auto;
    overflow: hidden;
    border-radius: 15px;
    margin: 20px 0;
    backdrop-filter: blur(16px);
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: 0;
}

.banner-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    opacity: 0.5; /* 50% transparent */
    border-radius: 0;
    padding: 20px;
}

.profile-section {
    backdrop-filter: blur(16px);
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    border-radius: 15px;
    box-shadow: var(--glass-shadow);
    padding: 2rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.profile-section h2 {
    margin-bottom: 1rem;
    text-shadow: var(--text-shadow);
}

.profile-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('images/aiprofilesq_2.webp');
    background-size: 100% 100%;
    background-position: center;
    opacity: 0.2;
    z-index: -1;
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        text-align: center;
    }
    
    .nav-button {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
}