@import url('https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap');

:root {
    --brown-dark: #3f2c21;
    --brown: #705a4d;
    --brown-light: #dec1b1;
    --cream-bg: #fffbff;
    --green: #D0D4C4;
    --red: #b3504b;
    --red-light: #f7d5d3;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    margin: 0;
    padding: 0;
    background: var(--cream-bg);
    font-family: "Open Sans", system-ui, sans-serif;
    color: var(--brown-dark);
}

/* Main wrapper for the challenge */
.container {
    width: 26rem;
    max-width: 100%;
    margin: 4rem auto;
    background: #fff;
    padding: 2rem;
    border-radius: 0.5rem;
    border: 0.12rem solid var(--brown-dark);
}

/* Headings & text */
h1 {
    margin: 0 0 0.75rem;
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--brown-dark);
}

h2 {
    margin: 1.5rem 0 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--brown-dark);
}

p {
    margin: 0.4rem 0 1rem;
    color: var(--brown);
    font-size: 0.98rem;
}

/* Form styling */
form {
    margin-top: 1rem;
}

input[type="text"] {
    width: 100%;
    padding: 0.8rem;
    margin: 0.7rem 0;
    border: 0.12rem solid var(--brown-dark); /* sharp */
    border-radius: 0.3rem;
    font-size: 1rem;
    background: #fff;
    color: var(--brown-dark);
    transition: border-color 0.15s ease;
}

input:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 2px rgba(208, 212, 196, 0.6);
}

button {
    width: 100%;
    padding: 0.9rem;
    margin-top: 0.8rem;
    background: var(--brown-dark);
    color: #fff;
    border: 0.12rem solid var(--brown-dark);
    border-radius: 0.3rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.1s ease, border-color 0.1s ease, transform 0.05s ease;
}

button:hover {
    background: var(--brown);
    border-color: var(--brown);
    transform: translateY(-1px);
}

button:active {
    transform: translateY(0);
}

/* Box that shows the file content */
.file-output {
    margin-top: 1.5rem;
    border-radius: 0.3rem;
    border: 0.12rem solid var(--brown-dark);
    background: var(--green);
    padding: 0.9rem;
    max-height: 16rem;
    overflow: auto;
}

.file-output h2 {
    margin-top: 0;
    margin-bottom: 0.6rem;
    font-size: 1rem;
}

.file-output pre {
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: "SF Mono", ui-monospace, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.9rem;
    color: var(--brown-dark);
}

/* Generic flag box */
.flag {
    background: var(--green);
    color: var(--brown-dark);
    padding: 1rem;
    border-radius: 0.3rem;
    margin: 1.4rem 0;
    border: 0.12rem solid var(--brown-dark);
    font-family: "SF Mono", ui-monospace, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.95rem;
}

/* Error messages */
.message {
    margin-top: 1rem;
    padding: 0.7rem 0.9rem;
    border-radius: 0.3rem;
    font-size: 0.9rem;
}

.message--error {
    background: var(--red-light);
    border: 0.12rem solid var(--red);
    color: var(--brown-dark);
}

.message--info {
    background: var(--brown-light);
    border: 0.12rem solid var(--brown-dark);
    color: var(--brown-dark);
}