:root {
  --bg: #0e1116;
  --panel: #171c24;
  --panel-2: #1f2630;
  --border: #2a323d;
  --text: #e6edf3;
  --muted: #8b97a6;
  --accent: #37fbf1;
  --accent-2: #5b8cff;
  --good: #3fb950;
  --bad: #f85149;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  background: linear-gradient(180deg, var(--panel), var(--bg));
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 5;
}

.brand { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 26px; }
h1 { font-size: 19px; margin: 0; letter-spacing: .3px; }

.status { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.counter strong { color: var(--text); }

.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot.online { background: var(--good); box-shadow: 0 0 8px var(--good); }
.dot.offline { background: var(--bad); box-shadow: 0 0 8px var(--bad); }

.toolbar {
  display: flex;
  gap: 8px;
  padding: 14px 22px;
  max-width: 920px;
  margin: 0 auto;
  width: 100%;
}
#search {
  flex: 1;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 15px;
  outline: none;
}
#search:focus { border-color: var(--accent-2); }
#clear-search {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 10px;
  padding: 0 14px;
  cursor: pointer;
  font-size: 14px;
}
#clear-search:hover { color: var(--text); }

main {
  max-width: 920px;
  margin: 0 auto;
  padding: 4px 22px 60px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 18px;
}
.card.new { animation: flash 1.4s ease-out; }
@keyframes flash {
  0% { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(55,251,241,.35); background: var(--panel-2); }
  100% { border-color: var(--border); box-shadow: none; background: var(--panel); }
}

.code {
  font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--accent);
  cursor: pointer;
  user-select: all;
  white-space: nowrap;
}
.code.none { color: var(--muted); font-size: 18px; letter-spacing: normal; }
.code:hover { text-decoration: underline; }

.meta { min-width: 0; }
.message {
  font-size: 14px;
  color: var(--text);
  margin: 0 0 5px;
  word-break: break-word;
}
.sub { font-size: 12px; color: var(--muted); display: flex; gap: 10px; flex-wrap: wrap; }
.sub .sender { color: var(--accent-2); }

.actions { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.copy-btn {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 13px;
  cursor: pointer;
}
.copy-btn:hover { border-color: var(--accent-2); }
.time { font-size: 11px; color: var(--muted); }

.empty {
  text-align: center;
  color: var(--muted);
  padding: 60px 20px;
  font-size: 15px;
}
.empty.hidden { display: none; }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--good);
  color: #05210c;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 10px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 560px) {
  .card { grid-template-columns: 1fr auto; }
  .code { font-size: 24px; grid-column: 1 / -1; }
}