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

body {
    font-family: "Segoe UI", Tahoma, sans-serif;
    background: #f7f9fc;
    color: #222;
}

/* Navbar */
.navbar {
    background: #673ab7;
    color: #fff;
    text-align: center;
    padding: 1rem;
    font-size: 1.6rem;
}

/* Container */
.container {
    width: 90%;
    max-width: 800px;
    margin: 2rem auto;
    display: grid;
    gap: 2rem;
}

/* Sections */
section {
    background: #fff;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

h2 {
    margin-bottom: 1rem;
    color: #673ab7;
}

/* Forms */
input {
    width: 100%;
    padding: 0.7rem;
    margin-bottom: 0.7rem;
    border-radius: 8px;
    border: 1px solid #ccc;
}

button {
    padding: 0.7rem 1.2rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.3s;
    margin-bottom: 0.5rem;
}

.btn-primary {
    background: #673ab7;
    color: #fff;
}

.btn-primary:hover {
    background: #5e35b1;
}

.btn-secondary {
    background: #ddd;
}

.btn-secondary:hover {
    background: #bbb;
}

/* Lists */
ul {
    list-style: none;
    padding-left: 0;
}

ul li {
    padding: 0.6rem;
    background: #fafafa;
    margin: 0.4rem 0;
    border-radius: 6px;
    border: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

ul li button {
    margin-left: 10px;
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    background: #4caf50;
    color: #fff;
}

ul li button:hover {
    background: #43a047;
}

/* Responsive */
@media(max-width: 600px) {
    .container {
        width: 95%;
    }

    button {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    ul li {
        flex-direction: column;
        align-items: flex-start;
    }
}