* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
body {
    position: relative;
    background: #f0f2f5;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('images/GitHub__headpic.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.6;
    z-index: -1;
}

/* Container card */
.container {
    background: white;
    padding: 30px 25px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 500px;
}

/* Search bar styling */
.search {
    display: flex;
    gap: 10px;
    flex-wrap: nowrap;
    align-items: center;
}

.search input {
    flex: 1;
    min-width: 0;
    padding: 10px 12px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 6px;
}

/* Search button with icon only */
.searchbtn {
    width: 68px;
    height: 68px;
    background-color: #fff;
    background-image: url('images/search_btn-removebg-preview.png');
    background-size: 60%;
    background-position: center;
    background-repeat: no-repeat;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.searchbtn:hover {
    background-color: #f0f0f0;
    transform: scale(1.05);
}

.searchbtn:active {
    transform: scale(0.95);
}

/* Profile display */
#profile {
    margin-top: 20px;
    text-align: center;
}

#profile img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 15px 0;
    border: 3px solid #040505;
    object-fit: cover;
}

#profile h2 {
    margin-bottom: 10px;
    font-size: 24px;
    color: #333;
}

#profile p {
    margin: 6px 0;
    font-size: 14px;
    color: #555;
}

#profile a {
    display: inline-block;
    margin-top: 15px;
    padding: 10px 20px;
    background:#555;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    transition: background 0.3s ease;
}

#profile a:hover {
    background: #333;
    color: #fff;
}

/* Responsive styles for mobile */
@media (max-width: 768px) {
    body {
        padding: 20px;
    }

    .container {
        padding: 20px 15px;
        width: 100%;
        max-width: 100%;
        box-shadow: none;
        border-radius: 8px;
    }

    .search {
        display: flex;
        gap: 12px;
    }

    .search input,
    .searchbtn {
        width: 10%;
        font-size: 15px;
    }

    /* Center icon-only button */
    .searchbtn {
        height: 44px;
        background-size: 65%;
    }

    #profile img {
        width: 100px;
        height: 100px;
        margin: 10px 0;
    }

    #profile h2 {
        font-size: 20px;
    }

    #profile p {
        font-size: 13px;
    }

    #profile a {
        padding: 8px 16px;
        font-size: 14px;
    }
}
/* Ultra-small devices: 3-inch phones (~240-320px width) */
@media (max-width: 320px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 15px 10px;
        max-width: 100%;
        box-shadow: none;
        border-radius: 6px;
    }

    .search {
        flex-wrap: nowrap;
    }

    .search input {
        font-size: 14px;
        font: 1 1 70%;
    }

    .searchbtn {
        flex: 0 0 30%;
        height: 40px;
        background-size: 55%;
        border-radius: 3px;
    }

    #profile img {
        width: 80px;
        height: 80px;
        margin: 10px 0;
    }

    #profile h2 {
        font-size: 18px;
    }

    #profile p {
        font-size: 12px;
    }

    #profile a {
        padding: 6px 12px;
        font-size: 13px;
    }
}