/* ==============================
   General Reset & Fonts
============================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f2f5;
    color: #333;
    line-height: 1.6;
}

/* ==============================
   Header Section
============================== */
header {
    background: linear-gradient(135deg, #007BFF, #00BFFF);
    color: #fff;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

header h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

header nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 20px;
    font-weight: 600;
    font-size: 1rem;
    transition: 0.3s;
}

header nav a:hover {
    text-decoration: underline;
}

/* ==============================
   Portfolio Section
============================== */
.portfolio {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    padding: 60px 20px;
}

/* ==============================
   Card Design
============================== */
.card {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    width: 300px;
    text-align: center;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-15px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.2);
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card h3 {
    margin: 20px 0 10px;
    font-size: 1.5rem;
    color: #007BFF;
}

.card p {
    padding: 0 20px 20px;
    font-size: 0.95rem;
    color: #555;
}

.card a {
    display: inline-block;
    margin-bottom: 20px;
    padding: 12px 25px;
    background: #007BFF;
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: 0.3s;
}

.card a:hover {
    background: #0056b3;
}

/* ==============================
   Highlight Main Company
============================== */
#main-company .card {
    border: 3px solid #007BFF;
    max-width: 500px;
}

/* ==============================
   Footer Section
============================== */
footer {
    text-align: center;
    padding: 30px 20px;
    background-color: #222;
    color: #fff;
    font-size: 0.95rem;
}

/* ==============================
   Responsive Design
============================== */
@media (max-width: 768px) {
    .portfolio {
        flex-direction: column;
        align-items: center;
    }

    header h1 {
        font-size: 2.2rem;
    }

    header nav a {
        display: block;
        margin: 10px 0;
    }
}