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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #fff;
    color: #000;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #fff 0%, #f5f5f5 25%, #fff 50%, #f9f9f9 75%, #fff 100%);
    background-size: 400% 400%;
    animation: gradientWave 20s ease infinite;
    z-index: -1;
}

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

/* Header */
header {
    position: absolute;
    top: 20px;
    right: 30px;
    z-index: 10;
}

.logo {
    height: 50px;
    width: auto;
    cursor: pointer;
}

/* Portfolio Container */
.portfolio-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 120px 40px 80px;
    position: relative;
    z-index: 1;
}

h1 {
    font-size: 3rem;
    margin-bottom: 30px;
    color: #000;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
}

.tab-button {
    background: none;
    border: none;
    color: #999;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    transition: color 0.3s ease;
}

.tab-button:hover {
    color: #e86851;
}

.tab-button.active {
    color: #e86851;
    font-weight: 600;
}

/* Sections */
.section {
    display: none;
    margin-bottom: 60px;
}

.section.active-section {
    display: block;
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #000;
}

.coming-soon {
    font-size: 1.2rem;
    color: #666;
    font-style: italic;
}

.back-link {
    display: inline-block;
    margin-top: 40px;
    color: #e86851;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
}

.back-link:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .portfolio-container {
        padding: 100px 30px 60px;
    }
    
    h1 {
        font-size: 2.5rem;
        margin-bottom: 20px;
    }
    
    .tabs {
        gap: 15px;
    }
    
    .tab-button {
        font-size: 1rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
}