* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f7fb;
    color: #222;
}

a {
    color: #5b3df5;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin-top: 0;
}

.wrap {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
}

.card {
    background: #ffffff;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.error {
    background: #fdecec;
    color: #a12626;
    border: 1px solid #f5c2c2;
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 18px;
}

.btn {
    display: inline-block;
    padding: 12px 16px;
    border: 0;
    border-radius: 10px;
    background: #5b3df5;
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    text-align: center;
}

.btn:hover {
    text-decoration: none;
    opacity: 0.95;
}