:root {
  --wall: #ddd0b6;
  --wall-shadow: #c7b896;

  --paper: #f6f1e4;
  --paper-shadow: rgba(0, 0, 0, 0.18);
  --ink: #2a2620;
  --muted-ink: #8b8069;

  --stamp-yes: #2f7d4f;
  --stamp-no: #a13c2d;
  --stamp-pending: #8b7a3a;

  --card-border: #cfc4a8;
  --link: #9c3b17;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --wall: #100c08;
    --wall-shadow: #000;
    --paper: #e9e2cd;
    --paper-shadow: rgba(0, 0, 0, 0.55);
    --link: #b3491d;
  }
}

:root[data-theme="dark"] {
  --wall: #100c08;
  --wall-shadow: #000;
  --paper: #e9e2cd;
  --paper-shadow: rgba(0, 0, 0, 0.55);
  --link: #b3491d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, var(--wall-shadow) 0%, transparent 60%),
    var(--wall);
  color: var(--ink);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  padding: 2.5rem 1.25rem 3.5rem;
}

main {
  max-width: 22rem;
  width: 100%;
  text-align: center;
}

.question {
  margin: 0 0 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted-ink);
}

/* --- the ticket --- */

.ticket {
  position: relative;
  background: var(--paper);
  padding: 1.5rem 1.5rem 1.75rem;
  text-align: center;
  box-shadow: 0 22px 40px -20px var(--paper-shadow);
}

.ticket-label {
  margin: 0 0 1rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-ink);
}

.ticket-rule {
  border-top: 1px dashed var(--card-border);
  margin: 1.1rem 0;
}

.verdict {
  display: inline-block;
  margin: 0;
  font-weight: 700;
  font-size: clamp(1.7rem, 8vw, 2.35rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.05;
  color: var(--muted-ink);
}

.detail {
  margin: 0.75rem 0 0;
  color: var(--muted-ink);
  font-size: 0.8rem;
  min-height: 1.1rem;
}

/* checking: blinking cursor, undecided ink */
.ticket--loading .verdict {
  color: var(--stamp-pending);
}

.ticket--loading .verdict::after {
  content: "_";
  animation: blink 1s steps(1) infinite;
}

.ticket--unknown .verdict {
  color: var(--stamp-pending);
}

.ticket--yes .verdict {
  color: var(--stamp-yes);
  text-shadow: 1.5px 1.5px 0 rgba(47, 125, 79, 0.25);
}

.ticket--no .verdict {
  color: var(--stamp-no);
}

@keyframes blink {
  50% { opacity: 0; }
}

.tag {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: left;
}

.tag-row {
  display: flex;
  align-items: baseline;
  gap: 0.4em;
  font-size: 0.78rem;
}

.tag-label {
  flex: none;
  color: var(--muted-ink);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.68rem;
}

.leader {
  flex: 1;
  border-bottom: 1px dotted var(--card-border);
  height: 0;
  margin-bottom: 0.2em;
}

.tag-value {
  flex: none;
  max-width: 60%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--ink);
}

.ticket-foot {
  margin: 1.5rem 0 0;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-ink);
}

/* torn perforation along the bottom edge */
.ticket::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -9px;
  height: 18px;
  background:
    linear-gradient(135deg, var(--wall) 50%, transparent 50%) 0 0,
    linear-gradient(-135deg, var(--wall) 50%, transparent 50%) 0 0;
  background-size: 18px 18px;
  background-repeat: repeat-x;
}

.footer {
  margin: 2.25rem 0 0;
  color: var(--muted-ink);
  font-size: 0.68rem;
  line-height: 1.6;
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

/* --- theme toggle --- */

.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon {
  width: 1.15rem;
  height: 1.15rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-moon {
  display: none;
}

:root[data-theme="dark"] .icon-sun {
  display: none;
}

:root[data-theme="dark"] .icon-moon {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun {
    display: none;
  }

  :root:not([data-theme="light"]) .icon-moon {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ticket--loading .verdict::after {
    animation: none;
  }
}