:root {
  --bg: #fbfaf7; --fg: #1d1c1a; --muted: #6b6760; --line: #dcd8cf;
  --field: #ffffff; --accent: #4a3aa8; --accent-fg: #ffffff;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17161a; --fg: #ece9e3; --muted: #a29d94; --line: #34323a;
    --field: #201f24; --accent: #9d8cff; --accent-fg: #15131c;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}
.wrap { max-width: 640px; margin: 0 auto; padding: 48px 16px 64px; }
h1 { font-size: 28px; margin: 0 0 8px; letter-spacing: -0.01em; }
.lede { color: var(--muted); margin: 0 0 28px; }
label { display: block; font-weight: 600; font-size: 14px; margin: 18px 0 6px; }
textarea, input[type="text"] {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--field); color: var(--fg); font: inherit;
}
textarea { resize: vertical; min-height: 110px; }
input#link { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
textarea:focus, input:focus, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}
.count { text-align: right; color: var(--muted); font-size: 13px; margin: 4px 0 0; }
.buttons { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
button {
  font: inherit; font-size: 15px; padding: 9px 14px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--line); background: var(--field); color: var(--fg);
}
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); font-weight: 600; }
button:disabled { opacity: 0.45; cursor: not-allowed; }
.status { min-height: 1.5em; color: var(--muted); font-size: 14px; margin: 12px 0 0; }
details { margin-top: 32px; border-top: 1px solid var(--line); padding-top: 12px; }
summary { cursor: pointer; color: var(--muted); font-size: 14px; }
.hint { color: var(--muted); font-size: 13px; margin: 6px 0 0; }
.said {
  font-size: clamp(22px, 4.5vw, 34px); line-height: 1.35; margin: 0;
  white-space: pre-wrap; overflow-wrap: anywhere;
}
.foot { color: var(--muted); font-size: 14px; margin-top: 32px; }
a { color: var(--accent); }