:root {
  color-scheme: light;
  --paper: #f2eee4;
  --sheet: #fbf8f1;
  --ink: #11100e;
  --muted: #71695d;
  --accent: #ff3b00;
  --accent-ink: #fff8f2;
  --shadow: #11100e;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", "Roboto Mono", Menlo, Consolas, monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, ui-serif, serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --paper: #141311;
    --sheet: #1b1916;
    --ink: #f2eee4;
    --muted: #a69c8d;
    --accent: #ff5a2a;
    --accent-ink: #1a0a04;
    --shadow: #000;
  }
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 0 20px 80px;
  border-top: 10px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.55;
}

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

.app {
  width: min(640px, 100%);
  margin: 0 auto;
}

.masthead {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: end;
  padding: 34px 0 22px;
  border-bottom: 2px solid var(--ink);
}

.mark {
  display: block;
  width: 64px;
  height: 64px;
  border: 2px solid var(--ink);
}

.wordmark {
  font-family: var(--serif);
  font-size: clamp(2.3rem, 8vw, 3.4rem);
  line-height: 0.9;
  letter-spacing: -0.055em;
}

.wordmark span {
  color: var(--accent);
}

.kicker {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.panel {
  margin-top: 28px;
  padding: 24px;
  border: 2px solid var(--ink);
  background: var(--sheet);
  box-shadow: 6px 6px 0 var(--shadow);
}

.panel[hidden] {
  display: none !important;
}

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

.eyebrow {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

h2 {
  font-size: 1.75rem;
}

p {
  margin: 0;
}

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

.field {
  display: grid;
  gap: 7px;
}

.field span {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

input {
  width: 100%;
  padding: 12px 13px;
  border: 2px solid var(--ink);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.9rem;
}

input::placeholder {
  color: var(--muted);
}

input:focus {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

button {
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 12px 18px;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease, transform 0.12s ease;
}

button:active {
  transform: translate(2px, 2px);
}

button:disabled {
  opacity: 0.55;
  cursor: wait;
}

button.primary {
  background: var(--ink);
  color: var(--paper);
}

button.primary:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

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

button.secondary:hover {
  background: var(--ink);
  color: var(--paper);
}

.list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px dashed var(--muted);
}

.list li:last-child {
  border-bottom: 1px dashed var(--muted);
}

.list .grow {
  min-width: 0;
}

.list strong {
  display: block;
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 600;
}

.list small {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.list .muted {
  font-family: var(--mono);
  font-size: 0.72rem;
}

.list button {
  border: 0;
  padding: 6px 0;
  background: transparent;
  color: var(--accent);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
}

.list button:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.hint {
  padding-top: 12px;
  border-top: 1px dashed var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--accent);
}

.status {
  margin-top: 20px;
  padding: 12px 14px;
  border: 2px solid var(--ink);
  border-left: 8px solid var(--ink);
  background: var(--sheet);
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.5;
}

.status[hidden] {
  display: none !important;
}

.status.success {
  border-left-color: var(--accent);
}

.status.error {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

details {
  padding-top: 14px;
  border-top: 1px dashed var(--muted);
}

summary {
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

summary:hover {
  color: var(--accent);
}

details[open] summary {
  margin-bottom: 14px;
}

.colophon {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 40px;
  padding-top: 14px;
  border-top: 2px solid var(--ink);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.colophon a {
  color: inherit;
}

@media (max-width: 480px) {
  body {
    padding: 0 14px 56px;
    border-top-width: 8px;
  }

  .masthead {
    grid-template-columns: 1fr;
    gap: 14px;
    padding-top: 26px;
  }

  .mark {
    width: 56px;
    height: 56px;
  }

  .panel {
    padding: 18px;
    box-shadow: 4px 4px 0 var(--shadow);
  }

  h2 {
    font-size: 1.5rem;
  }

  .colophon {
    flex-direction: column;
  }
}