body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f8fafc;
    color: #0f172a;
}

header {
    background: #0f172a;
    color: #fff;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 20px;
    font-weight: bold;
}

.container {
    max-width: 420px;
    margin: 60px auto;
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,.08);
}

h2 {
    margin-top: 0;
    text-align: center;
}

input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border-radius: 6px;
    border: 1px solid #cbd5e1;
}

button {
    width: 100%;
    padding: 12px;
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
}

button:hover {
    background: #1e40af;
}

.msg {
    text-align: center;
    margin-bottom: 15px;
    color: #dc2626;
}

.success {
    color: #16a34a;
}

a {
    color: #2563eb;
    text-decoration: none;
    font-size: 14px;
}