@font-face {
  font-family: "Departure Mono";
  src: url("../fonts/DepartureMono-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

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

:root {
  --color-bg: #ffffff;
  --color-text: #000000;
  --color-muted: #666666;
  --color-border: #000000;
  --color-accent: #000000;
  --font-body: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-ui: "Departure Mono", monospace;
  --border-width: 1px;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  line-height: 1.4;
}

/* ── Header ── */

header {
  padding: 1rem 1.5rem;
  border-bottom: var(--border-width) solid var(--color-border);
}

.logo {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  text-decoration: none;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 400;
}

/* ── Main ── */

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  text-align: center;
}

#quote-container {
  max-width: 640px;
  width: 100%;
}

blockquote {
  font-size: clamp(1.25rem, 4vw, 2.25rem);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

blockquote.visible {
  opacity: 1;
  transform: translateY(0);
}

cite {
  display: block;
  font-family: var(--font-ui);
  font-style: normal;
  font-size: 0.75rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0;
  transition: opacity 0.4s ease 0.15s;
}

cite.visible {
  opacity: 1;
}

/* ── Controls ── */

.controls {
  margin-top: 3rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mode-label {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
}

#shuffle-btn {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: none;
  border: var(--border-width) solid var(--color-border);
  color: var(--color-text);
  padding: 0.4rem 1.2rem;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

#shuffle-btn:hover {
  background-color: var(--color-text);
  color: var(--color-bg);
}

#shuffle-btn:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 2px;
}

/* ── Footer ── */

footer {
  padding: 1rem 1.5rem;
  border-top: var(--border-width) solid var(--color-border);
  text-align: center;
  font-family: var(--font-ui);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
}

footer a {
  color: var(--color-text);
  text-decoration: none;
  border-bottom: var(--border-width) solid var(--color-border);
  padding-bottom: 1px;
  transition: opacity 0.2s ease;
}

footer a:hover {
  opacity: 0.5;
}

footer .subtle {
  margin-top: 0.35rem;
  font-size: 0.55rem;
  color: var(--color-muted);
  opacity: 0.6;
}

/* ── Responsive ── */

@media (max-width: 480px) {
  header {
    padding: 0.75rem 1rem;
  }

  main {
    padding: 2rem 1rem;
  }

  footer {
    padding: 0.75rem 1rem;
  }

  .controls {
    flex-direction: column;
    gap: 0.5rem;
  }
}