:root {
  color-scheme: light dark;
  --b: #e3e3e3;
  --bg: #fafafa;
  --fg: #111;
  --card: #fff;
}
html[data-theme="dark"] {
  color-scheme: dark;
  --b: #333;
  --bg: #111;
  --fg: #eee;
  --card: #1b1b1b;
}
* {
  box-sizing: border-box;
}
body {
  font:
    15px/1.5 -apple-system,
    system-ui,
    sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--fg);
}
header {
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--b);
  position: sticky;
  top: 0;
  background: inherit;
  z-index: 5;
}
header h1 {
  font-size: 16px;
  margin: 0;
}
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}
.composer {
  display: flex;
  gap: 8px;
  border: 1px solid var(--b);
  border-radius: 12px;
  padding: 8px;
  background: var(--card);
  margin-bottom: 14px;
}
.composer textarea {
  flex: 1;
  border: 0;
  resize: none;
  background: transparent;
  color: inherit;
  font: inherit;
  outline: none;
  min-height: 42px;
}
input[type="password"] {
  border: 1px solid var(--b);
  border-radius: 8px;
  padding: 6px 8px;
  background: transparent;
  color: inherit;
  font: inherit;
  width: 130px;
}
button {
  border: 0;
  border-radius: 9px;
  padding: 8px 12px;
  background: #2dd672;
  color: #03150c;
  font-weight: 600;
  cursor: pointer;
}
button.secondary {
  background: #8884;
  color: inherit;
}
.card {
  border: 1px solid var(--b);
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 10px;
  background: var(--card);
}
.card .meta {
  font-size: 12px;
  opacity: 0.55;
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 6px;
}
.card .meta .del {
  margin-left: auto;
  cursor: pointer;
  opacity: 0.6;
}
.card pre {
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
  font: inherit;
}
.tag {
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.toast {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  background: #222;
  color: #fff;
  padding: 8px 14px;
  border-radius: 20px;
  opacity: 0;
  transition: 0.2s;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
}
.modal {
  position: fixed;
  inset: 0;
  background: #0008;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10;
}
.modal.show {
  display: flex;
}
.modal-box {
  background: var(--card);
  border: 1px solid var(--b);
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  max-width: 300px;
}
.modal-box img {
  width: 240px;
  height: 240px;
  image-rendering: pixelated;
}
.modal-box code {
  display: block;
  word-break: break-all;
  font-size: 12px;
  margin: 10px 0;
  opacity: 0.7;
}