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

body {
    font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
    background: #f4f6f9;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.auth-box {
    background: #fff;
    width: 400px;
    padding: 35px 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.auth-box h2 {
    text-align: center;
    margin-bottom: 25px;
    color: #1a1a2e;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    color: #333;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    transition: border 0.2s;
}

.form-group input:focus {
    border-color: #2563eb;
}

.error-text {
    color: #e11d48;
    font-size: 13px;
    margin-top: 4px;
}

.btn-submit {
    width: 100%;
    padding: 11px;
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    transition: background 0.2s;
}

.btn-submit:hover {
    background: #1d4ed8;
}

.auth-footer {
    text-align: center;
    margin-top: 18px;
    font-size: 13px;
    color: #555;
}

.auth-footer a {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
}

.alert-error {
    background: #fee2e2;
    color: #b91c1c;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 16px;
}

@media (max-width: 480px) {
    .auth-box {
        width: 90%;
        padding: 25px 20px;
    }
}

.btn-link {
    background: none;
    border: none;
    color: #2563eb;
    text-decoration: underline;
    cursor: pointer;
    font-size: 13px;
    font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
}

html {
    scrollbar-width: thin;
    scrollbar-color: #2563eb #f4f6f9;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f4f6f9;
}

::-webkit-scrollbar-thumb {
    background: #2563eb;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1d4ed8;
}