:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --text: #12141a;
  --muted: #5c6270;
  --line: #dfe2e8;
  --accent: #1f7a5a;
  --accent-text: #ffffff;
  --danger: #a4243b;
  --danger-bg: #fdeaee;
  --warn-bg: #fff6e0;
  --warn: #8a5a00;
  --radius: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101216;
    --surface: #181b21;
    --text: #e8eaee;
    --muted: #9aa1ad;
    --line: #2a2e37;
    --accent: #3fae86;
    --accent-text: #06110d;
    --danger: #ff8fa3;
    --danger-bg: #2b161c;
    --warn-bg: #2c2313;
    --warn: #ffcf70;
  }
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem;
}

.screen--centred {
  min-height: 100dvh;
  display: grid;
  place-items: center;
}

h1 {
  margin: 0;
  font-size: 1.6rem;
}

h2 {
  font-size: 1.1rem;
  margin: 2rem 0 0.75rem;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

.mono {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 0.82rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.screen--centred .card {
  width: 100%;
  max-width: 24rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.card--user {
  margin-bottom: 1rem;
}

.card--user header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.row-actions {
  margin-left: auto;
  display: flex;
  gap: 0.5rem;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

input[type='text'],
input[type='password'],
input[type='file'] {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  width: 100%;
}

button {
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 0.55rem 0.9rem;
  background: var(--accent);
  color: var(--accent-text);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
}

button.danger {
  background: var(--danger);
  color: #fff;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}

.topbar div {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.banner {
  margin: 1rem 0;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  background: var(--warn-bg);
  color: var(--warn);
  font-size: 0.9rem;
}

.error {
  color: var(--danger);
  background: var(--danger-bg);
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  font-size: 0.9rem;
}

.notice {
  background: var(--surface);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  font-size: 0.9rem;
}

.pill {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
}

.pill--online {
  color: var(--accent);
  border-color: var(--accent);
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 0.75rem;
}

.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem;
  display: flex;
  flex-direction: column;
}

.stat strong {
  font-size: 1.3rem;
}

.stat span {
  color: var(--muted);
  font-size: 0.8rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  overflow-x: auto;
  display: block;
}

th,
td {
  text-align: left;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.row--danger td {
  background: var(--danger-bg);
}

.sticker-form {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 0.75rem;
  align-items: end;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
}

@media (max-width: 40rem) {
  .sticker-form {
    grid-template-columns: 1fr;
  }
}

.sticker-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(8rem, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.sticker-card {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  display: grid;
  gap: 0.35rem;
  justify-items: center;
  text-align: center;
}

.sticker-card img {
  width: 84px;
  height: 84px;
  object-fit: contain;
}

dialog {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  max-width: 32rem;
  padding: 1.5rem;
}

dialog::backdrop {
  background: rgb(0 0 0 / 0.5);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1rem;
}