/* General styling */
body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 50px 0;
    color: #333;
}

.container {
    width: 90%;
    max-width: 900px;
    text-align: center;
}

/* Heading */
h1 {
    color: #fff;
    font-size: 2.2em;
    margin-bottom: 5px;
    text-shadow: 1px 1px 5px rgba(0,0,0,0.3);
}

p {
    color: #eee;
    font-size: 16px;
    margin-bottom: 20px;
}

/* Card style */
.card {
    background: #fff;
    padding: 25px 30px;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.3);
}

/* Table styling */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

th, td {
    padding: 12px 10px;
    border-bottom: 1px solid #eee;
    text-align: center;
}

th {
    background: #764ba2;
    color: #fff;
    font-weight: 500;
    border-radius: 10px 10px 0 0;
}

td input {
    width: 90%;
    padding: 6px 8px;
    border-radius: 8px;
    border: 1px solid #ccc;
    transition: 0.3s;
}

td input:focus {
    border-color: #764ba2;
    box-shadow: 0 0 5px rgba(118,75,162,0.5);
}

/* Remove button */
td button {
    background-color: #ff6b6b;
    color: #fff;
    border: none;
    padding: 5px 8px;
    border-radius: 5px;
    cursor: pointer;
    transition: 0.3s;
}

td button:hover {
    background-color: #e63946;
}

/* Controls */
.controls {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.controls button {
    padding: 12px 20px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-weight: bold;
    color: #fff;
    background: linear-gradient(135deg, #667eea, #764ba2);
    transition: 0.3s;
    font-size: 1em;
}

.controls button:hover {
    background: linear-gradient(135deg, #764ba2, #667eea);
}

/* Result display */
#result {
    margin-top: 25px;
    font-size: 22px;
    font-weight: bold;
    color: #fff;
    padding: 15px;
    border-radius: 15px;
    background: rgba(0,0,0,0.3);
}