/* Base shell styles. All styling lives here — CSP forbids inline style/script. */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
}

html {
  color-scheme: dark;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15.5px;
  line-height: 1.45;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 20px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0 20px;
}

.wordmark {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.02em;
}

.wordmark .cursor {
  color: var(--accent);
  animation: blink 1.2s steps(2, start) infinite;
}

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

.label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.display {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 32px;
  letter-spacing: -0.01em;
}

@media (min-width: 720px) {
  .display {
    font-size: 36px;
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 16px;
  padding: 24px;
}

.stack > * + * {
  margin-top: 14px;
}

.field .label {
  display: block;
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  background: var(--raised);
  border: 1px solid var(--hairline);
  border-radius: 9px;
  padding: 10px 12px;
  color: var(--ink);
  font: inherit;
}

.field input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 0;
  border-color: transparent;
}

.btn {
  display: inline-block;
  width: 100%;
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  min-height: 44px; /* touch target per DESIGN */
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.btn:hover {
  filter: brightness(1.06);
}

.btn-quiet {
  background: none;
  border: 0;
  padding: 0;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  cursor: pointer;
}

.btn-quiet:hover {
  color: var(--ink-2);
}

.muted {
  color: var(--ink-2);
}

.errors {
  color: var(--ink-2);
  font-size: 14px;
}

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

.auth {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.auth .card {
  width: 100%;
  max-width: 360px;
}

.auth .wordmark {
  display: block;
  text-align: center;
  margin-bottom: 18px;
  font-size: 17px;
}