* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background: #f8f9fa;
    color: #333;
    line-height: 1.7;
}

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

/* Hero Banner - Beautiful but not too big */
.hero-banner {
    position: relative;
    margin-bottom: 40px;
    height: 380px;
    overflow: hidden;
    border-radius: 0 0 20px 20px;
}

.hero-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(70%);
}

.hero-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    width: 90%;
    max-width: 900px;
}

.hero-overlay h1 {
    font-size: 2.8rem;
    margin-bottom: 10px;
    text-shadow: 0 3px 10px rgba(0, 0, 0, 0.7);
}

.hero-overlay p {
    font-size: 1.3rem;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

/* Top Header */
.top-header {
    background: linear-gradient(135deg, #006a4e, #007a5a);
    color: white;
    padding: 40px 0;
}

.logo-title h1 {
    font-size: 2.8rem;
    margin-bottom: 8px;
}

.logo-title p {
    font-size: 1.3rem;
    opacity: 0.95;
}

/* Search */
.search-section {
    margin: 40px auto;
    text-align: center;
}

.search-section input {
    width: 100%;
    max-width: 700px;
    padding: 18px 28px;
    font-size: 1.1rem;
    border: 2px solid #ddd;
    border-radius: 50px;
    outline: none;
}

.search-section input:focus {
    border-color: #006a4e;
    box-shadow: 0 0 0 4px rgba(0, 106, 78, 0.1);
}

/* Clean Text-Only Cards */
.internships-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 28px;
    margin: 40px 0;
}

.card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: 0.3s;
    border: 1px solid #eee;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 18px 35px rgba(0, 0, 0, 0.15);
}

.card-header {
    background: #006a4e;
    color: white;
    padding: 22px;
    text-align: center;
    font-weight: 600;
    font-size: 1.35rem;
}

.card-body {
    padding: 28px;
}

.card-title {
    font-size: 1.45rem;
    color: #006a4e;
    margin-bottom: 12px;
    line-height: 1.3;
}

.field {
    color: #555;
    font-size: 0.98rem;
    margin: 12px 0;
}

.apply-btn {
    display: block;
    background: #006a4e;
    color: white;
    text-align: center;
    padding: 15px;
    text-decoration: none;
    border-radius: 10px;
    margin-top: 20px;
    font-weight: 600;
    font-size: 1.05rem;
}

.apply-btn:hover {
    background: #004d39;
}

.whatsapp-float {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background: #25d366;
    color: white;
    width: 65px;
    height: 65px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 35px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    text-decoration: none;
}

footer {
    background: #222;
    color: #ccc;
    text-align: center;
    padding: 50px 20px;
    margin-top: 80px;
}

footer a {
    color: #25d366;
    text-decoration: none;
}

/* Mobile */
@media (max-width: 768px) {
    .hero-banner {
        height: 300px;
    }

    .hero-overlay h1 {
        font-size: 2.2rem;
    }

    .hero-overlay p {
        font-size: 1.1rem;
    }

    .logo-title h1 {
        font-size: 2.2rem;
    }

    .internships-grid {
        grid-template-columns: 1fr;
    }



    /* PROFESSIONAL BOLD NAVIGATION BAR */
    .main-nav {
        background: #ffffff;
        padding: 18px 0;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
        position: sticky;
        top: 0;
        z-index: 1000;
        border-bottom: 3px solid #006a4e;
    }

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

    .nav-logo {
        font-size: 1.85rem;
        font-weight: 800;
        color: #006a4e;
        text-decoration: none;
        letter-spacing: 0.5px;
    }

    .nav-links a {
        margin-left: 40px;
        font-size: 1.1rem;
        font-weight: 700;
        color: #222;
        text-decoration: none;
        padding: 8px 0;
        position: relative;
        transition: all 0.3s;
    }

    .nav-links a:hover {
        color: #006a4e;
    }

    .nav-links a::after {
        content: '';
        position: absolute;
        width: 0;
        height: 3px;
        bottom: 0;
        left: 50%;
        background: #006a4e;
        transition: all 0.3s;
    }

    .nav-links a:hover::after {
        width: 100%;
        left: 0;
    }

    /* Mobile – neat dropdown style */
    @media (max-width: 768px) {
        .main-nav .container {
            flex-direction: column;
            gap: 15px;
        }

        .nav-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }

        .nav-links a {
            margin: 0;
            font-size: 1.15rem;
        }
    }
}