/* Reset base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Arial, sans-serif;
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

/* Header */
header {
    background-color: #1e1e2f;
    color: white;
    padding: 15px 0;
}

header .header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

header .logo {
    height: 50px;
}

header nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

header nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

header nav ul li a:hover {
    color: #ff7f50;
}

/* Hero section */
.hero {
    background: linear-gradient(to right, #4e54c8, #8f94fb);
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero .btn-primary {
    display: inline-block;
    padding: 12px 25px;
    background-color: #ff7f50;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
    transition: background 0.3s;
}

.hero .btn-primary:hover {
    background-color: #e6733c;
}

/* Cards section */
.cards {
    padding: 50px 0;
    text-align: center;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.card {
    background-color: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.card h3 {
    margin-bottom: 10px;
}

.card a {
    display: inline-block;
    margin-top: 15px;
    text-decoration: none;
    color: #4e54c8;
    font-weight: bold;
}

.section-light {
    background-color: #f5f5f5;
    padding: 50px 0;
    text-align: center;
}

.btn-secondary {
    display: inline-block;
    padding: 12px 25px;
    background-color: #4e54c8;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
    transition: background 0.3s;
}

.btn-secondary:hover {
    background-color: #3b3fc1;
}

/* Footer */
footer {
    background-color: #1e1e2f;
    color: white;
    text-align: center;
    padding: 30px 0;
    margin-top: 50px;
}