/*
  Design Plan:
  - Subject: Platform acceptance fixture for publishing throughput.
  - Idea: A quiet, utilitarian status surface where the single action immediately presents acceptance verification.
  - Colors: Clean neutral field, sharp slate ink, clear cobalt accent.
  - Bold element: Precision layout with strict focus states and instant feedback.
*/

:root {
  --color-ground: #f8fafc;
  --color-surface: #ffffff;
  --color-ink: #0f172a;
  --color-muted: #475569;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;

  --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-2xl: 2rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;

  --radius: 0.375rem;
}

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-ground);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  max-width: 48rem;
  margin: 0 auto;
  padding: var(--space-12) var(--space-6);
  width: 100%;
}

.card {
  background-color: var(--color-surface);
  padding: var(--space-8);
  border-radius: var(--radius);
}

h1 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-3) 0;
  color: var(--color-ink);
  text-wrap: balance;
}

p {
  color: var(--color-muted);
  margin: 0 0 var(--space-6) 0;
  text-wrap: pretty;
}

.action-btn {
  display: inline-block;
  appearance: none;
  border: none;
  background-color: var(--color-accent);
  color: var(--color-surface);
  font-family: inherit;
  font-size: var(--text-base);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius);
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
}

.action-btn:hover {
  background-color: var(--color-accent-hover);
}

.action-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.status-output {
  margin-top: var(--space-6);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-ink);
}