:root {
  --paper: #f4efe5;
  --paper-raised: #fbf8f1;
  --ink: #151a24;
  --ink-muted: #535b69;
  --line: #151a24;
  --sky: #98c7eb;
  --sky-soft: #dcecf8;
  --signal: #f0a253;
  --good: #61a57a;
  --font-display: Georgia, "Times New Roman", serif;
  --font-body: Inter, Geist, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-md: 1rem;
  --text-lg: 1.25rem;
  --text-xl: clamp(2.35rem, 9vw, 5.6rem);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: var(--text-md);
  line-height: 1.5;
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: clamp(1rem, 3vw, 2.5rem);
}

.masthead, .foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  border: 2px solid var(--line);
  background: var(--sky);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.12em;
  padding: 0.55rem 0.7rem;
  text-transform: uppercase;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status::before {
  width: 0.6rem;
  height: 0.6rem;
  border: 1px solid var(--line);
  background: var(--good);
  content: "";
}

.stage {
  width: min(100%, 76rem);
  margin: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(19rem, 0.75fr);
  border: 2px solid var(--line);
  background: var(--paper-raised);
}

.intro {
  min-height: 31rem;
  padding: clamp(1.5rem, 5vw, 4.5rem);
  border-right: 2px solid var(--line);
  background: var(--sky-soft);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 3rem;
}

.eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  max-width: 9ch;
  margin: 0.9rem 0 1.25rem;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.91;
}

.dek {
  max-width: 35rem;
  margin: 0;
  color: var(--ink-muted);
  font-size: var(--text-lg);
}

.boundary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
}

.boundary span {
  padding: 0.7rem;
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-align: center;
  text-transform: uppercase;
}

.boundary span:last-child { border-right: 0; }

.auth {
  padding: clamp(1.5rem, 4vw, 3.5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth h2 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
}

.auth-copy {
  margin: 0 0 1.75rem;
  color: var(--ink-muted);
  font-size: var(--text-sm);
}

.field { display: block; margin-top: 1rem; }

.field span {
  display: block;
  margin-bottom: 0.4rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input {
  width: 100%;
  min-height: 3rem;
  border: 1px solid var(--line);
  border-radius: 0;
  background: #fffdf8;
  color: var(--ink);
  font: inherit;
  padding: 0.7rem 0.8rem;
}

input:focus-visible, button:focus-visible, a:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 2px;
}

button {
  width: 100%;
  min-height: 3.15rem;
  margin-top: 1.25rem;
  border: 2px solid var(--line);
  border-radius: 0;
  background: var(--ink);
  color: #ffffff;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

button:hover { background: #293246; }

.error {
  border-left: 0.45rem solid var(--signal);
  background: #fff2e5;
  margin: 0 0 1rem;
  padding: 0.7rem 0.8rem;
  font-size: var(--text-sm);
}

.logout-note { margin-top: 1rem; color: var(--ink-muted); font-size: var(--text-sm); }
.logout-note a { color: var(--ink); text-underline-offset: 0.2em; }

.foot {
  padding-top: 1rem;
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
}

@media (max-width: 760px) {
  .shell { padding: 0.85rem; gap: 1rem; }
  .stage { grid-template-columns: 1fr; }
  .intro { min-height: auto; border-right: 0; border-bottom: 2px solid var(--line); gap: 2rem; }
  .boundary { grid-template-columns: 1fr; }
  .boundary span { border-right: 0; border-bottom: 1px solid var(--line); }
  .boundary span:last-child { border-bottom: 0; }
  .auth { min-height: 25rem; }
  .masthead .status { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
}