body {
    margin: 0;
    padding: 0;
    background-color: #1e1e1e;
    font-family: 'Segoe UI', sans-serif;
    color: white;
}

/* Container */
.container {
    max-width: 1100px;
    margin: 50px auto;
    padding: 40px;
    background-color: #2e2e2e;
    border-radius: 16px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.6);
    text-align: center;
}

/* Headings */
h1 {
    color: #ffcc00;
    margin-bottom: 10px;
    font-size: 36px;
}

.intro {
    font-size: 18px;
    color: #ccc;
    margin-bottom: 40px;
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 20px;
    margin-bottom: 60px;
}

.skill-card {
    background: linear-gradient(145deg, #3a3a3a, #262626);
    padding: 20px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    color: #ffcc00;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

.skill-card:hover {
    transform: scale(1.05);
    background-color: #ffcc00;
    color: #222;
}

/* Certificate Heading */
.cert-heading {
    margin-top: 60px;
    color: #ffcc00;
    font-size: 32px;
}

/* Certificate Grid */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-top: 25px;
}

/* Certificate Card */
.cert-card {
    background-color: #383838;
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.4);
    transition: transform 0.3s ease, background 0.3s ease;
}

.cert-card:hover {
    transform: translateY(-5px);
    background-color: #ffcc00;
    color: #111;
}

.cert-card img {
    max-width: 100%;
    border-radius: 10px;
    margin-bottom: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.5);
    transition: transform 0.3s ease;
}

.cert-card img:hover {
    transform: scale(1.03);
}

.cert-card p {
    font-weight: bold;
    margin: 0;
    font-size: 16px;
}

/* Home Link */
.back-home {
    margin-top: 40px;
}

.home-link {
    text-decoration: none;
    color: #ffcc00;
    font-weight: bold;
    font-size: 18px;
    padding: 10px 20px;
    border: 2px solid #ffcc00;
    border-radius: 30px;
    transition: background 0.3s ease, color 0.3s ease;
}

.home-link:hover {
    background-color: #ffcc00;
    color: #111;
}