/* acoustics-psycho.com: shared styles. No inline styles anywhere (the CSP allows only this file). */
:root {
  --bg: #f7f7f5; --fg: #1c1d1f; --mute: #5d6066; --line: #d9dad6; --card: #ffffff; --accent: #2f5fd0; --bad: #b3261e; --ok: #1d7a3a;
  --r: 10px; --font: system-ui, -apple-system, "Segoe UI", Roboto, "Heebo", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111214; --fg: #e8e8e6; --mute: #a2a5ab; --line: #2c2e32; --card: #1a1b1e; --accent: #8fb0ff; --bad: #ff8a80; --ok: #7fd49a; }
}
* { box-sizing: border-box; }
html { background: var(--bg); color: var(--fg); font: 16px/1.55 var(--font); }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; }
a { color: var(--accent); }
header.top, footer.bot { display: flex; align-items: center; gap: 16px; padding: 12px 20px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
footer.bot { border-bottom: 0; border-top: 1px solid var(--line); color: var(--mute); font-size: 14px; margin-top: auto; }
header.top .brand { font-weight: 700; text-decoration: none; color: var(--fg); margin-inline-end: auto; }
header.top nav { display: flex; gap: 14px; flex-wrap: wrap; }
.lang { display: flex; gap: 4px; }
.lang button { font: inherit; font-size: 13px; padding: 2px 8px; border: 1px solid var(--line); background: transparent; color: var(--fg); border-radius: 6px; cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--fg); color: var(--bg); }
main { width: 100%; max-width: 880px; margin: 0 auto; padding: 28px 16px 48px; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 12px; }
h2 { font-size: 19px; margin: 28px 0 10px; }
.lead { color: var(--mute); margin: 0 0 24px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 16px; }
a.card { text-decoration: none; color: inherit; display: block; }
a.card:hover, a.card:focus-visible { border-color: var(--accent); }
a.card h3 { color: var(--accent); }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--mute); font-size: 15px; }
.btn { font: inherit; padding: 8px 14px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: #fff; cursor: pointer; }
.btn.ghost { background: transparent; color: var(--accent); }
.btn:disabled { opacity: .5; cursor: default; }
input[type="email"], input[type="password"], input[type="text"] { font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--fg); width: min(340px, 100%); }
input.code { width: 15ch; font-family: ui-monospace, "JetBrains Mono", Consolas, monospace; letter-spacing: .08em; text-transform: uppercase; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.stack { display: grid; gap: 6px; max-width: 360px; }
.stack .row { margin: 8px 0 0; }
button.link { font: inherit; background: none; border: 0; padding: 0; color: var(--accent); text-decoration: underline; cursor: pointer; }
.card.ask { margin: 12px 0; border-color: var(--accent); }
.card.ask p { color: var(--fg); margin: 0 0 8px; }
.note { font-size: 14px; color: var(--mute); }
.msg { margin: 12px 0; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line); }
.msg.bad { border-color: var(--bad); color: var(--bad); }
.msg.ok { border-color: var(--ok); color: var(--ok); }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: start; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
code.key { font-family: ui-monospace, "JetBrains Mono", Consolas, monospace; font-size: 14px; }
label.chk { display: flex; gap: 10px; align-items: flex-start; margin: 10px 0; }
[hidden] { display: none !important; }