:root{
   --primary-color: #4a6fa5;
   --secondary-color:#166088;
   --accent-color:#4fc3f7;
   --light-color:#f8f9fa;
   --darc-color:#343a40;
   --text-color:#333;
   --text-light:#6c757d;
}
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color:var(--light-color);
}
img{
    max-width: 100%;
    height: auto;
}
a{
    text-decoration: none;
    color: var(--primary-color);
}
ul{
    list-style: none;
}
.btn{
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all o.3s ease;
}
    .btn:hover{
        background-color: var(--secondary-color);
        transform: translateY(-2px);
}
.btn-outline{
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}
.btn-outline:hover{
    background: var(--primary-color);
    color: white;
}
.section-title{
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 0.5rem;
}
.section-title::after{
    content: '';
    position:absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent-color);
}
.grid-container{
    display: grid;
    grid-template-columns: 1fr;
    grid-template-areas: 
    "header"
    "hero"
    "main"
    "sidebar"
    "footer";
    min-height: 100vh;
}
.header{
    grid-area: header;
    background: white;
    box-shadow: 0.2px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}
.logo img{
    height: 50px;
}
.main-nav ul{
    display: flex;
    gap: 1.5rem;
}
.main-nav a{
    color: var(--darc-color);
    font-weight: 500;
    transition: color 0,3s;
}
.main-nav a:hover{
    color: var(--primary-color);
}
.menu-toggle{
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}
.hero{
    grid-area: hero;
    background: linear-gradient(rgba(0,0,0,0.6),rgba(0,0,0,0.6),url(''));
    color: white;
    padding: 5rem 2rem;
    display: flex;
    align-items: center;
}
.hero-content{
    max-width: 600px;
}
.hero h1{
    font-size: 2.5rem;
    margin-bottom: 1rem;
}
.hero p{
    font-size: 1.2rem;
    margin-bottom: 2rem;
}
.main-content{
    grid-area: main;
    padding: 3rem 2rem;
}
.features{
    margin-bottom: 4rem;
}
.features-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px,1fr));
    gap: 2rem;
    margin-top: 2rem;
}
.feature-card{
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0.5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}
.feature-card:hover{
    transform: translateY(-10px);
}
.feature-card img{
    width: 100%;
    height: 200px;
    object-fit:cover;
}
.feature-card h3{
    padding: 1rem 1rem 0;
    color: var(--secondary-color);
}
.feature-card p{
    padding: 1rem 1.5rem;
    color: var(--text-light);
}
.about{
    display: grid;grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}
.about-image img{
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}
.sidebar{
    grid-area: sidebar;
    background: var(--secondary-color);
    color: white;
    padding: 2rem;
}
.sidebar-widget{
    margin-bottom: 2rem;
}
.sidebar-widget h3{
    margin-bottom: 1rem;
    font-size: 1.3rem;
    color: var(--accent-color);
}
.sidebar-widget ul li{
    margin-bottom: 0.5rem;
}
.sidebar-widget a{
    color: white;
    transition: color 0.3s;
}
.sidebar-widget a:hover{
    color: var(--accent-color);
}
.subscribe-form{
    display: flex;
    margin-top: 1rem;
}
.subscribe-form input{
    flex: 1;
    padding: 0.8rem;
    border: none;
    border-radius: 4px 0 0 4px;
}
.subscribe-form button{
    padding: 0.1rem;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}
.footer{
    display: flex;
    background: var(--darc-color);
    color: white;
    padding: 3rem 2rem 1rem;
    justify-content: space-between;
}
.footer-column{
    margin-bottom: 2rem;
    margin: 20px;
}
.footer-column h4{
    margin-bottom: 1.5rem;
    color: var(--accent-color);
}
.footer-column ul li{
    margin-bottom: 0.5rem;
}
.footer-column a{
    color: #ddd;
    transition: color 0.3s;
}
.footer-column a:hover{
    color: var(--accent-color);
}
.footer-bottom{
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    margin-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items:center;
}
.social-links{
    display: flex;
    gap: 1rem;
}