:root {
  color-scheme: light dark;
  --bg: #f4f5f7;
  --surface: #ffffff;
  --text: #16181d;
  --muted: #5d6470;
  --border: #dde0e6;
  --accent: #2456d6;
  --accent-text: #ffffff;
  --danger: #c4302b;
  --ok: #1d7a46;
  --warn: #9a5b00;
  --radius: 12px;
  --font-ui: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #181b21;
    --text: #e8eaee;
    --muted: #9aa1ad;
    --border: #2b3039;
    --accent: #5b8cff;
    --accent-text: #0b0d12;
    --danger: #ff6b63;
    --ok: #4fc485;
    --warn: #e0a640;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 var(--font-ui);
}

main {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}

.box {
  width: 100%;
  max-width: 720px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 30px rgb(0 0 0 / 0.06);
}

.box.narrow {
  max-width: 420px;
  padding: 28px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.half {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 32px;
}

.half + .half {
  border-left: 1px solid var(--border);
}

@media (max-width: 640px) {
  .split {
    grid-template-columns: 1fr;
  }

  .half + .half {
    border-left: 0;
    border-top: 1px solid var(--border);
  }
}

h2 {
  margin: 0;
  font-size: 1.25rem;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--muted);
}

input {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

input:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button {
  padding: 10px 16px;
  font: inherit;
  font-weight: 600;
  color: var(--accent-text);
  background: var(--accent);
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
}

button:disabled,
input:disabled {
  opacity: 0.6;
  cursor: progress;
}

.half > button {
  margin-top: auto;
}

.password-field {
  position: relative;
  display: block;
}

.password-field input {
  padding-right: 72px;
}

button.toggle-password {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  padding: 4px 10px;
  font-size: 0.8125rem;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 6px;
}

button.toggle-password:hover {
  color: var(--text);
  background: var(--border);
}

button.small {
  padding: 4px 12px;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
}

button.secondary {
  color: var(--text);
  background: transparent;
  border-color: var(--border);
}

button.secondary[aria-pressed="true"] {
  color: var(--warn);
  border-color: currentColor;
}

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

.message,
#status {
  min-height: 1.5em;
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
}

.message:empty {
  display: none;
}

.message.error {
  color: var(--danger);
}

#status.ok {
  color: var(--ok);
}

#status.info {
  color: var(--accent);
}

#status.warn {
  color: var(--warn);
}

#status.error {
  color: var(--danger);
}

#link-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px 20px;
  align-items: center;
  margin: 0 0 24px;
}

dt {
  font-size: 0.875rem;
  color: var(--muted);
}

dd {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.125rem;
  overflow-wrap: anywhere;
}

.password-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

button.reveal {
  padding: 0;
  font: inherit;
  color: inherit;
  text-align: left;
  background: none;
  border: 0;
  border-bottom: 1px dashed var(--muted);
  border-radius: 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.actions button {
  flex: 1 1 auto;
}

#link-form .actions {
  margin-bottom: 0;
}

#link-form .actions button {
  flex: 1 1 0;
}