:root {
  --bg: #000;
  --panel: #999;
  --panel-dark: #7f7f7f;
  --footer: #ccc;
  --border: #5c5c5c;
  --text: #000;
  --muted: #2b2b2b;
  --button: #bcbcbc;
  --button-hover: #d4d4d4;
  --button-text: #111;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: var(--bg);
  font-family: "Courier New", Courier, monospace;
}

.site-header {
  padding: 1rem 1rem 0;
  display: flex;
  justify-content: center;
}

.header-image {
  width: min(100%, 800px);
  height: auto;
  display: block;
}

.page {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1rem 0 0;
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 1.25rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 0;
  box-shadow: var(--shadow);
}

.controls-panel {
  padding: 1.5rem;
  align-self: start;
  position: sticky;
  top: 1rem;
}

.eyebrow,
.poem-kind {
  margin: 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--muted);
}

h1 {
  margin: 0.35rem 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.1;
  font-weight: normal;
}

.intro {
  margin: 0 0 1.5rem;
  line-height: 1.45;
  color: var(--muted);
  text-align: left;
}

.controls {
  display: grid;
  gap: 1rem;
}

label {
  display: grid;
  gap: 0.45rem;
  font-size: 0.95rem;
}

select,
button {
  border: 1px solid var(--border);
  font: inherit;
}

select {
  padding: 0.8rem 0.95rem;
  background: #d7d7d7;
}

button {
  padding: 0.85rem 1rem;
  background: var(--button);
  color: var(--button-text);
  cursor: pointer;
  transition: background 140ms ease, transform 140ms ease;
}

button:hover {
  background: var(--button-hover);
  transform: translateY(-1px);
}

.poem-panel {
  padding: 1.2rem;
  min-height: 70vh;
}

.poem-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

#copy-button {
  padding-inline: 0.8rem;
  background: #bfbfbf;
  color: var(--text);
}

#copy-button:hover {
  background: #d9d9d9;
}

.poem-output {
  margin: 0;
  white-space: pre-wrap;
  word-break: normal;
  overflow-wrap: anywhere;
  min-height: calc(70vh - 4rem);
  padding: 1.3rem;
  border: 1px solid #7f7f7f;
  background: #bdbdbd;
  font-family: "Courier New", Courier, monospace;
  font-size: 0.98rem;
  line-height: 1.45;
}

.site-footer {
  width: min(1100px, calc(100% - 2rem));
  margin: 0.75rem auto 2rem;
  padding: 0.5rem 1.5rem;
  background: var(--footer);
  color: #333;
  border: 1px solid var(--border);
  font-family: Optima, "Trebuchet MS", Arial, sans-serif;
  font-size: 0.85rem;
  text-align: right;
}

.overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
}

.overlay-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.68);
}

.overlay-panel {
  position: relative;
  width: min(840px, calc(100% - 2rem));
  max-height: calc(100vh - 2rem);
  overflow: auto;
  margin: 1rem auto;
  padding: 1.5rem;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.overlay-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.overlay-header h2 {
  margin: 0;
  font-size: 1.3rem;
  font-weight: normal;
}

.overlay-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.overlay-tab {
  padding: 0.55rem 0.85rem;
  background: #b5b5b5;
}

.overlay-tab.is-active {
  background: #d6d6d6;
}

.overlay-page {
  display: none;
}

.overlay-page.is-active {
  display: block;
}

.overlay-copy p {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  line-height: 1.45;
  text-align: justify;
}

.wordlist {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.45rem;
  margin-top: 1.25rem;
}

.wordlist span {
  display: block;
  padding: 0.45rem 0.5rem;
  border: 1px solid #7b7b7b;
  background: #cfcfcf;
  text-align: center;
  cursor: pointer;
}

.wordlist span:hover,
.wordlist span:focus {
  background: #e0e0e0;
  outline: none;
}

@media (max-width: 860px) {
  .page {
    grid-template-columns: 1fr;
  }

  .controls-panel {
    position: static;
  }

  .poem-panel {
    min-height: auto;
  }

  .poem-output {
    min-height: 28rem;
    font-size: 0.92rem;
  }

  .poem-header,
  .overlay-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .wordlist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer {
    text-align: left;
  }
}