* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 10%;
    background: #1a1a2e;
    color: white;
}
.logo h1 span {
    color: #00d4ff;
}
nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}
nav ul li a {
    color: white;
    text-decoration: none;
    transition: 0.3s;
}
nav ul li a:hover, nav ul li a.active {
    color: #00d4ff;
}
.hero {
    height: 80vh;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    background-color: #0f3460;
}
.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}
.btn {
    display: inline-block;
    background: #00d4ff;
    padding: 12px 30px;
    color: #1a1a2e;
    text-decoration: none;
    margin-top: 20px;
    border-radius: 5px;
}
.portfolio {
    padding: 60px 10%;
}
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.portfolio-item {
    background: #f4f4f4;
    border-radius: 8px;
    overflow: hidden;
    padding: 20px;
}
.portfolio-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
footer {
    background: #1a1a2e;
    color: white;
    text-align: center;
    padding: 40px;
    margin-top: 40px;
}
.container {
    max-width: 1200px;
    margin: auto;
    padding: 20px;
}
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 20px;
    }
    nav ul {
        flex-direction: column;
        text-align: center;
    }
    
    /* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Responsive Images */
img {
    max-width: 100%;
    height: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s;
    font-weight: 600;
}

.btn-primary {
    background: #00d4ff;
    color: #1a1a2e;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,212,255,0.3);
}

/* Responsive Grid */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col {
    flex: 1;
    padding: 0 15px;
}

@media (max-width: 768px) {
    .row {
        flex-direction: column;
    }
    
    .col {
        margin-bottom: 20px;
    }
}

/* Mobile First Approach */
@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* Tablet */
@media (min-width: 577px) and (max-width: 992px) {
    .container {
        padding: 0 30px;
    }
}

/* Desktop */
@media (min-width: 993px) {
    .container {
        padding: 0 40px;
    }
}