:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --ink: #14202e;
  --muted: #56657a;
  --line: #d9e1ec;
  --brand: #0b5cab;
  --brand-ink: #ffffff;
  --scam: #b3261e;
  --careful: #8a5a00;
  --careful-bg: #fff4d6;
  --safe: #1e6b34;
  --focus: #ffb000;
  --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e141c;
    --surface: #16202c;
    --ink: #e8eef6;
    --muted: #a3b1c4;
    --line: #2a3747;
    --brand: #4b9bff;
    --brand-ink: #06121f;
    --careful-bg: #3a2c05;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { font-size: 18px; }
body { margin: 0; overflow-x: hidden; background: var(--bg); color: var(--ink); font-family: -apple-system, "Segoe UI", system-ui, Roboto, sans-serif; line-height: 1.55; }
a { color: var(--brand); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; background: var(--surface); padding: 8px 12px; z-index: 10; }
.muted { color: var(--muted); }
.small { font-size: 0.8rem; }

.top { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 14px 20px; max-width: 1080px; margin: 0 auto; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; color: var(--ink); text-decoration: none; }
.top nav { display: flex; gap: 18px; }
.top nav a { text-decoration: none; font-weight: 600; }

main { max-width: 1080px; margin: 0 auto; padding: 0 20px 40px; }
h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; margin: 24px 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 1.6rem; margin: 0 0 12px; }
h3 { font-size: 1.1rem; margin: 18px 0 8px; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 720px; margin: 0 0 20px; }

.checker { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; box-shadow: 0 8px 30px rgba(10, 30, 60, 0.06); }
textarea, input { width: 100%; font: inherit; font-size: 1.05rem; color: var(--ink); background: var(--bg); border: 2px solid var(--line); border-radius: 10px; padding: 12px 14px; }
textarea { resize: vertical; min-height: 130px; }
textarea:focus, input:focus { border-color: var(--brand); outline: none; }
.checker-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 12px; }
.fine { font-size: 0.85rem; color: var(--muted); margin: 10px 0 0; }

.btn { font: inherit; font-weight: 700; font-size: 1.05rem; border-radius: 10px; padding: 12px 20px; border: 2px solid transparent; cursor: pointer; }
.btn.primary { background: var(--brand); color: var(--brand-ink); }
.btn.secondary { background: var(--ink); color: var(--bg); margin-top: 12px; }
.btn.ghost { background: transparent; color: var(--brand); border-color: var(--brand); }
.btn.ghost-light { background: rgba(255, 255, 255, 0.18); color: #fff; border-color: rgba(255, 255, 255, 0.6); }
.btn.small { font-size: 0.9rem; padding: 8px 14px; }
.btn:disabled { opacity: 0.6; cursor: progress; }

.examples { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 16px 0 8px; color: var(--muted); font-size: 0.9rem; }
.examples button { font: inherit; font-size: 0.9rem; background: var(--surface); color: var(--ink); border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; cursor: pointer; }

.result, .call { margin: 24px 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.call { padding: 20px; }
.verdict { padding: 22px 22px 18px; color: #fff; background: var(--careful); }
.verdict h2 { font-size: 2rem; margin: 0 0 6px; }
.verdict p { font-size: 1.15rem; margin: 0 0 12px; }
.verdict.scam { background: var(--scam); }
.verdict.suspicious { background: var(--careful); }
.verdict.safe { background: var(--safe); }
.call .verdict { border-radius: 10px; margin-top: 16px; }
.result-body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px 32px; padding: 6px 22px 22px; }
.flags, .report { padding-left: 20px; }
.flags li { margin-bottom: 10px; }
.evidence { color: var(--muted); overflow-wrap: anywhere; }
.flags, .official, .verdict p, .warn p { overflow-wrap: anywhere; }
.why { font-size: 0.9rem; color: var(--muted); }
.todo li { margin-bottom: 6px; }
.official { background: var(--careful-bg); border-radius: 10px; padding: 12px 14px; }
.warn { margin-top: 12px; background: var(--bg); border-radius: 10px; padding: 14px; }
.call-start { display: grid; gap: 10px; max-width: 560px; }
.call-start label { font-weight: 700; }
.call-question { font-size: 1.3rem; font-weight: 700; margin: 18px 0 4px; }

.band { margin: 40px 0; }
.recover { margin: 40px 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.chips button { font: inherit; font-size: 0.95rem; background: var(--bg); color: var(--ink); border: 2px solid var(--line); border-radius: 999px; padding: 8px 14px; cursor: pointer; }
.chips button[aria-pressed="true"] { border-color: var(--brand); background: var(--brand); color: var(--brand-ink); }
.plan { border-top: 1px solid var(--line); padding-top: 8px; margin-top: 12px; }
.plan ol li { margin-bottom: 8px; }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.card h3 { margin-top: 0; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.alerts { margin: 40px 0; }
.alerts-list { padding-left: 20px; }
.alerts-list li { margin-bottom: 10px; }
.alerts-list a { font-weight: 700; }

.alexa { display: grid; grid-template-columns: 1.1fr 1fr; gap: 28px; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin: 40px 0; }
.phrases { list-style: none; padding: 0; }
.phrases li { background: var(--bg); border-radius: 10px; padding: 8px 12px; margin-bottom: 8px; font-weight: 600; }
.alexa-img { width: 100%; border-radius: 12px; border: 1px solid var(--line); }

code { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; font-size: 0.9em; word-break: break-all; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; margin-bottom: 10px; }
.faq summary { font-weight: 700; cursor: pointer; }

.doc { max-width: 760px; }
.doc h1 { font-size: 2.2rem; }

.foot { border-top: 1px solid var(--line); padding: 24px 20px 40px; max-width: 1080px; margin: 0 auto; color: var(--muted); font-size: 0.9rem; }

@media (max-width: 820px) {
  .result-body, .alexa { grid-template-columns: minmax(0, 1fr); }
  .cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  html { font-size: 17px; }
  .cards { grid-template-columns: 1fr; }
  .top nav { gap: 12px; font-size: 0.9rem; }
  .checker-row .btn { width: 100%; }
}