/* Groove TTS — plain, high contrast, keyboard-visible.
   Same shape as an ordinary page: header, a column of sections, footer. */

:root {
    --bg: #f4f4f4;
    --surface: #ffffff;
    --sunken: #eceaef;
    --ink: #2c3e50;
    --body: #333333;
    --muted: #5f5b66;
    --line: #d8d4de;
    --accent: #b02258;
    --accent-ink: #ffffff;
    --focus: #0b62d6;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #17141c;
        --surface: #201c28;
        --sunken: #2b2534;
        --ink: #f2eff6;
        --body: #d6d0dd;
        --muted: #a49bb0;
        --line: #38313f;
        --accent: #ff8fbd;
        --accent-ink: #17141c;
        --focus: #7fb2ff;
    }
}

* { box-sizing: border-box; }

body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--bg);
    color: var(--body);
}

header {
    background-color: var(--ink);
    color: #ffffff;
    text-align: center;
    padding: 2rem 1rem;
}
header h1 { margin: 0 0 0.5rem; font-size: 2.5rem; }
header p { margin: 0 auto; max-width: 40rem; }

.container { max-width: 800px; margin: 2rem auto; padding: 0 1rem; }

section {
    background: var(--surface);
    padding: 1.5rem 2rem 2rem;
    margin-bottom: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

h2 {
    color: var(--ink);
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.5rem;
    margin: 0.5rem 0 1rem;
}
h3 { color: var(--ink); margin: 1.75rem 0 0.4rem; }
p { margin: 1rem 0; }
ul { margin: 1rem 0 1rem 2rem; padding: 0; }
li { margin-bottom: 0.4rem; }

a { color: var(--accent); }

code {
    font-family: Consolas, "Courier New", monospace;
    background: var(--sunken);
    padding: 0.1em 0.35em;
    border-radius: 4px;
    color: var(--ink);
}
pre {
    background: var(--sunken);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0.8rem 1rem;
    overflow-x: auto;
}
pre code { background: none; padding: 0; font-size: 0.85rem; }

dl { margin: 1rem 0; }
dt { margin-top: 0.9rem; }
dd { margin: 0.2rem 0 0; }

.help { color: var(--muted); font-size: 0.92rem; margin-top: -0.5rem; }

/* ---------- form ---------- */
label {
    display: block;
    font-weight: bold;
    color: var(--ink);
    margin-bottom: 0.25rem;
}

.editor, select {
    font: inherit;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 5px;
    padding: 0.5rem 0.6rem;
    width: 100%;
    max-width: 100%;
}

/* A contenteditable div rather than a textarea: on Chromium, arrowing through a
   textarea makes NVDA re-read the whole field and lose the caret, and this is
   the one control that behaves. It needs role and aria-multiline to be a text
   box at all, and the label has to be attached by id since <label for> only
   binds to real form controls. */
.editor {
    display: block;
    min-height: 8rem;
    max-height: 24rem;
    overflow-y: auto;
    line-height: 1.5;
    white-space: pre-wrap;
    overflow-wrap: break-word;
}

.label {
    display: block;
    font-weight: bold;
    color: var(--ink);
    margin-bottom: 0.25rem;
}

.field { margin: 1rem 0; }

.check { display: flex; align-items: center; gap: 0.5rem; margin: 1rem 0; }
.check input { width: 1.1rem; height: 1.1rem; margin: 0; accent-color: var(--accent); }
.check label { margin: 0; font-weight: normal; }

input[type="range"] { width: 100%; max-width: 24rem; accent-color: var(--accent); }

button {
    font: inherit;
    font-weight: bold;
    color: var(--accent-ink);
    background-color: var(--accent);
    border: none;
    border-radius: 5px;
    padding: 0.7rem 1.4rem;
    cursor: pointer;
}
button:hover { filter: brightness(1.1); }
button[aria-disabled="true"] { opacity: 0.6; cursor: progress; filter: none; }

#reset {
    background: var(--surface);
    color: var(--ink);
    border: 1px solid var(--line);
    font-weight: normal;
    padding: 0.5rem 1rem;
}

details {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0 1rem;
    margin: 1.5rem 0;
}
summary {
    cursor: pointer;
    font-weight: bold;
    color: var(--ink);
    padding: 0.7rem 0;
    margin: 0 -1rem;
    padding-left: 1rem;
}

audio { width: 100%; max-width: 100%; }

#status { font-weight: bold; color: var(--ink); min-height: 1.6rem; }
#status.error { color: var(--accent); }

/* focus is not decoration here */
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

footer {
    text-align: center;
    padding: 1.5rem 1rem;
    background-color: var(--ink);
    color: #ffffff;
}
footer p { margin: 0 auto; max-width: 40rem; font-size: 0.9rem; }