@font-face {
    font-weight: 300;
    font-family: 'Fira Sans';
    font-style: normal;
    font-display: swap;
    src: url('../fonts/FiraSans-Light.woff2') format('woff2');
}

@font-face {
    font-weight: 400;
    font-family: 'Fira Sans';
    font-style: normal;
    font-display: swap;
    src: url('../fonts/FiraSans-Regular.woff2') format('woff2');
}

@font-face {
    font-weight: 500;
    font-family: 'Fira Sans';
    font-style: normal;
    font-display: swap;
    src: url('../fonts/FiraSans-Medium.woff2') format('woff2');
}

:root {
    --bg-color: #fff;
    --textarea-bg: #f4f6ff;
    --text-color: #000;
    --border-color: transparent;
    --focus-border: #0043fa;
}

[data-theme="dark"] {
    --bg-color: #121212;
    --textarea-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --border-color: #333;
    --focus-border: #0043fa;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Fira Sans', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 12px 40px 20px;
}

@media (max-width: 690px) {
    .container {
        padding: 10px 20px 40px;
    }
}

.textarea {
    width: 100%;
    height: 20000px;
    min-height: 100px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--textarea-bg);
    color: var(--text-color);
    font-size: 16px;
    font-family: 'Fira Sans', sans-serif;
    outline: none;
    resize: vertical;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

.textarea:focus {
    border: 1px solid var(--focus-border);
}