/* জেনারেল সেটিংস */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
}

/* নেভিগেশন */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #2c3e50;
    padding: 1rem 5%;
    color: white;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.logo span {
    color: #3498db;
}

.nav-links {
    list-style: none;
    display: flex;
}

.nav-links li {
    margin-left: 20px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: 0.3s;
}

.nav-links a:hover {
    color: #3498db;
}

/* হিরো সেকশন */
.hero {
    height: 90vh;
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://photos.app.goo.gl/FP3jDBua2f83t6et5/1500x800') no-repeat center center/cover;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
}

.hero-content h1 {
    font-size: 3rem;
}

.hero-content span {
    color: #3498db;
}

.btn {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 25px;
    background: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: 0.3s;
}

.btn:hover {
    background: #2980b9;
}

/* অন্যান্য সেকশন */
section {
    padding: 80px 10%;
    text-align: center;
}

.about {
    background: white;
}

.skills {
    background: #ecf0f1;
}

.skill-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.skill-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    font-weight: bold;
}

/* ফুটার */
footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 20px 0;
}