@font-face {
  font-family: "Playfair Display";
  font-style: normal;
  font-weight: 600 700;
  font-display: swap;
  src: url("fonts/playfair-display-latin.woff2") format("woff2");
}

@font-face {
  font-family: "Open Sans";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/open-sans-latin.woff2") format("woff2");
}

:root {
  --red: #D92626;
  --red-dark: #B01E1E;
  --ink: #141414;
  --muted: #565656;
  --line: #E3E3E3;
  --bg: #FFFFFF;
  --soft: #F6F6F6;
  --green: #17683A;
  --green-bg: #EAF6EE;
  --warn-bg: #FDECEC;
  --neutral-bg: #F3F3F3;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Open Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
}

.page {
  max-width: 560px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.masthead { text-align: center; margin-bottom: 20px; }
.logo { display: block; margin: 0 auto 4px; width: 120px; height: auto; }
.eyebrow {
  margin: 0 0 4px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--red-dark);
}

h1, h2, .result h2 {
  font-family: "Playfair Display", Georgia, "Times New Roman", serif;
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
}
h1 { font-size: 1.875rem; }
h2 { font-size: 1.25rem; margin-bottom: 6px; }

.card {
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  border-radius: 6px;
  padding: 20px 16px;
  margin-top: 20px;
  background: var(--bg);
}

.hint { margin: 0 0 14px; color: var(--muted); font-size: 0.9375rem; }

label { display: block; font-weight: 600; margin-bottom: 6px; }

.row { display: flex; gap: 8px; }

input[type="text"] {
  flex: 1;
  min-width: 0;
  font: inherit;
  font-size: 1.125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 12px;
  border: 2px solid #8A8A8A;
  border-radius: 6px;
  background: var(--bg);
  color: var(--ink);
}
input[type="text"]::placeholder { text-transform: none; letter-spacing: 0; color: #6B6B6B; }

.btn {
  font: inherit;
  font-weight: 700;
  padding: 12px 20px;
  border: 2px solid var(--red);
  border-radius: 6px;
  background: var(--red);
  color: #fff;
  cursor: pointer;
}
.btn:hover { background: var(--red-dark); border-color: var(--red-dark); }

:focus-visible { outline: 3px solid #1A1A1A; outline-offset: 2px; }
input[type="text"]:focus-visible { outline: 3px solid var(--red); outline-offset: 1px; border-color: var(--ink); }
.btn:focus-visible { outline-color: #1A1A1A; box-shadow: 0 0 0 5px #fff; }

.field-error { margin: 8px 0 0; color: var(--red-dark); font-weight: 600; font-size: 0.9375rem; }

/* Result states */
.result {
  margin-top: 4px;
  padding: 20px 16px;
  border-radius: 6px;
  border: 2px solid var(--line);
  background: var(--neutral-bg);
}
.result:focus { outline: none; }
.result .badge {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
}
.result h2 { font-size: 1.5rem; margin-bottom: 4px; overflow-wrap: anywhere; }
.result .sub { margin: 0 0 14px; color: var(--muted); }
.result.is-valid { background: var(--green-bg); border-color: var(--green); }
.result.is-valid .badge { background: var(--green); }
.result.is-revoked { background: var(--warn-bg); border-color: var(--red); }
.result.is-revoked .badge { background: var(--red-dark); }
.result.is-none .badge { background: #4A4A4A; }

dl { margin: 0; }
.fields > div { padding: 10px 0; border-top: 1px solid rgba(0, 0, 0, 0.12); }
dt { font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); }
dd { margin: 2px 0 0; font-weight: 600; overflow-wrap: anywhere; }
.issuer { margin: 14px 0 0; padding-top: 12px; border-top: 1px solid rgba(0, 0, 0, 0.12); font-weight: 600; }

/* File check */
.drop {
  display: block;
  position: relative;
  margin: 0;
  padding: 28px 16px;
  text-align: center;
  border: 2px dashed #8A8A8A;
  border-radius: 6px;
  background: var(--soft);
  cursor: pointer;
}
.drop:hover, .drop.is-over { border-color: var(--red); background: #FFF5F5; }
.drop:focus-within { outline: 3px solid #1A1A1A; outline-offset: 2px; }
.drop-title { display: block; font-weight: 700; }
.drop-sub { display: block; color: var(--muted); font-size: 0.9375rem; }
.drop input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }

.file-result { margin-top: 14px; padding: 14px; border-radius: 6px; border: 2px solid var(--line); font-weight: 600; }
.file-result.is-match { background: var(--green-bg); border-color: var(--green); color: #0F4A28; }
.file-result.is-mismatch { background: var(--warn-bg); border-color: var(--red); color: #7A1313; }
.file-result .name { display: block; margin-top: 4px; font-weight: 400; font-size: 0.875rem; color: var(--muted); overflow-wrap: anywhere; }

.foot { margin-top: 28px; text-align: center; color: var(--muted); font-size: 0.875rem; }
.foot p { margin: 0 0 4px; }
.foot a { color: var(--red-dark); font-weight: 600; }

[hidden] { display: none !important; }

@media (min-width: 600px) {
  .page { padding-top: 40px; }
  .card, .result { padding: 24px; }
}