/* ==============================
   Tongnan Font
   ============================== */

@font-face {
    font-family: "TongnanWeb";
    src: url("fonts/TongSquare.woff2") format("woff2");
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}


/* ==============================
   Tongnan text
   ============================== */

.tongnan {
    font-family: "TongnanWeb", sans-serif;
    font-size: 56px;
    line-height: 1.6;
}


/* ==============================
   Basic page
   ============================== */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #f5f5f5;
    color: #222;
    font-family:
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 24px;
}

h1 {
    margin: 0 0 8px;
    font-size: 42px;
}

.subtitle {
    margin: 0 0 40px;
    color: #777;
}

.card {
    background: white;
    padding: 28px;
    margin-bottom: 20px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.label {
    margin-bottom: 14px;
    color: #888;
    font-size: 13px;
    font-weight: bold;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}



/* ==============================
   Input
   ============================== */

textarea {
    width: 100%;
    min-height: 120px;

    padding: 14px;

    border: 1px solid #ddd;
    border-radius: 10px;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Consolas,
        monospace;

    font-size: 18px;
    line-height: 1.5;

    resize: vertical;
}

textarea:focus {
    outline: none;
    border-color: #888;
}

.preview {
    margin-top: 18px;
    padding: 20px;

    min-height: 100px;

    border-radius: 10px;
    background: #fafafa;
}

.source {
    margin-bottom: 12px;

    font-family:
        ui-monospace,
        SFMono-Regular,
        Consolas,
        monospace;

    font-size: 18px;

    color: #777;
}

.description {
    margin-top: 14px;
    color: #777;
    font-size: 14px;
    line-height: 1.7;
}