/* Colours follow the visitor's own light/dark setting automatically. */
:root {
  --bg: #f6f4ef;
  --card: #ffffff;
  --ink: #1d1d1b;
  --muted: #6b6a65;
  --line: #e3e0d8;
  --accent: #2f5bea;
  --btn: #2f5bea;
  --btn-ink: #ffffff;
  --up: #1f8a4c;
  --up-bg: #e6f4ec;
  --down: #c2362b;
  --down-bg: #fbe9e7;
  --warn: #a86a00;
  --warn-bg: #fdf3e0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141412; --card: #1e1e1b; --ink: #f1efe9; --muted: #a09e97; --line: #33322e;
    --accent: #8fabff; --btn: #3d6af2; --btn-ink: #ffffff;
    --up: #5fd08f; --up-bg: #183225; --down: #ff7a6e; --down-bg: #3a1c19;
    --warn: #f0b44c; --warn-bg: #3a2c12;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header { padding: 28px 0 8px; }
.logo { font-weight: 800; font-size: 1.15rem; text-decoration: none; color: var(--ink); letter-spacing: -0.01em; }
.logo span { color: var(--accent); }
h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); line-height: 1.15; margin: 28px 0 8px; letter-spacing: -0.02em; }
.lede { color: var(--muted); margin: 0 0 24px; }

form.check { display: flex; gap: 8px; }
form.check input {
  flex: 1; min-width: 0; padding: 14px 16px; font-size: 1.05rem;
  border: 2px solid var(--line); border-radius: 12px; background: var(--card); color: var(--ink);
}
form.check input:focus { outline: none; border-color: var(--accent); }
form.check button {
  padding: 14px 22px; font-size: 1.05rem; font-weight: 700; border: 0; border-radius: 12px;
  background: var(--btn); color: var(--btn-ink); cursor: pointer;
}
form.check button:hover:not(:disabled) { filter: brightness(1.1); }
form.check button:disabled { opacity: .6; cursor: wait; }

.result {
  margin-top: 20px; padding: 20px; border-radius: 14px; border: 1px solid var(--line);
  background: var(--card); display: none;
}
.result.show { display: block; }
.result.up { background: var(--up-bg); border-color: transparent; }
.result.down { background: var(--down-bg); border-color: transparent; }
.result.warn { background: var(--warn-bg); border-color: transparent; }
.verdict { font-size: 1.4rem; font-weight: 800; margin: 0 0 6px; }
.up .verdict { color: var(--up); }
.down .verdict { color: var(--down); }
.warn .verdict { color: var(--warn); }
.meta { color: var(--muted); font-size: .95rem; margin: 0; }
.tip { margin: 10px 0 0; font-size: .95rem; }

.recent { margin-top: 18px; font-size: .92rem; color: var(--muted); }
.recent button {
  background: none; border: 1px solid var(--line); color: var(--ink); border-radius: 999px;
  padding: 4px 12px; margin: 4px 4px 0 0; cursor: pointer; font-size: .9rem;
}

.chips-title { font-size: 1rem; margin: 28px 0 10px; color: var(--muted); font-weight: 600; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips a {
  text-decoration: none; color: var(--ink); background: var(--card);
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: .92rem;
}
.chips a:hover { border-color: var(--accent); color: var(--accent); }

/* Ad boxes stay hidden until AdSense is switched on in app.js */
.ad { margin: 32px 0; min-height: 100px; text-align: center; }
.ad[hidden] { display: none; }

section.content h2 { font-size: 1.3rem; margin: 36px 0 8px; }
section.content p, section.content li { color: var(--ink); }
section.content ol, section.content ul { padding-left: 1.2em; }

footer {
  margin-top: 48px; padding: 24px 0 40px; border-top: 1px solid var(--line);
  color: var(--muted); font-size: .9rem;
}
footer a { color: var(--muted); margin-right: 14px; }

@media (max-width: 480px) {
  form.check { flex-direction: column; }
  form.check button { width: 100%; }
}