/* Fonts — paths relative to this file in assets/ */
@font-face {
  font-family: 'BerkeleyMono';
  src: url('BerkeleyMono-Regular.woff') format('woff');
  font-weight: normal;
}
@font-face {
  font-family: 'BerkeleyMono';
  src: url('BerkeleyMono-Bold.woff') format('woff');
  font-weight: bold;
}

/* Reset & base */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'BerkeleyMono', monospace;
  background: #1a1a1a;
  color: #e0e0e0;
  min-height: 100vh;
  padding: 2rem;
}

h1 {
  font-size: 1.4rem;
  margin-bottom: 0.3rem;
  color: #fff;
}

.subtitle {
  font-size: 0.8rem;
  color: #888;
  margin-bottom: 2rem;
}

/* Navigation */
.nav-links {
  font-size: 0.75rem;
  margin-bottom: 1rem;
  display: flex;
  gap: 1.5rem;
}
.nav-links a {
  color: #555;
  text-decoration: none;
}
.nav-links a:hover { color: #999; }

/* Mode toggle */
.mode-toggle {
  display: flex;
  gap: 0;
  margin-bottom: 1.5rem;
  border: 1px solid #333;
  border-radius: 4px;
  overflow: hidden;
  width: fit-content;
}

.mode-btn {
  font-family: 'BerkeleyMono', monospace;
  font-size: 0.75rem;
  padding: 0.4rem 1rem;
  border: none;
  background: #222;
  color: #888;
  cursor: pointer;
  transition: all 0.15s;
}
.mode-btn.active { background: #333; color: #fff; }
.mode-btn:hover { color: #fff; }

/* Builder columns */
.builder {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.column {
  flex: 1;
  min-width: 170px;
}

.column-header {
  font-weight: bold;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid #333;
}

.column-header.tense { color: #6ecf8a; }
.column-header.verb { color: #5bb8f0; }
.column-header.pronoun { color: #f0c95b; }
.column-header.preposition { color: #c98af0; }
.column-header.location { color: #f08a6e; }

.word-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

/* Word buttons */
.word-btn {
  font-family: 'BerkeleyMono', monospace;
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid #333;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.word-btn .maori { font-weight: bold; }
.word-btn .english { font-size: 0.7rem; opacity: 0.6; }

.word-btn.tense { background: #1a2e1f; color: #6ecf8a; border-color: #2a4a30; }
.word-btn.tense:hover, .word-btn.tense.selected { background: #6ecf8a; color: #1a1a1a; border-color: #6ecf8a; }

.word-btn.verb { background: #1a2535; color: #5bb8f0; border-color: #2a3a50; }
.word-btn.verb:hover, .word-btn.verb.selected { background: #5bb8f0; color: #1a1a1a; border-color: #5bb8f0; }

.word-btn.pronoun { background: #2e2a1a; color: #f0c95b; border-color: #4a4030; }
.word-btn.pronoun:hover, .word-btn.pronoun.selected { background: #f0c95b; color: #1a1a1a; border-color: #f0c95b; }

.word-btn.preposition { background: #251a35; color: #c98af0; border-color: #3a2a50; }
.word-btn.preposition:hover, .word-btn.preposition.selected { background: #c98af0; color: #1a1a1a; border-color: #c98af0; }

.word-btn.location { background: #2e1f1a; color: #f08a6e; border-color: #4a302a; }
.word-btn.location:hover, .word-btn.location.selected { background: #f08a6e; color: #1a1a1a; border-color: #f08a6e; }

/* Sentence display area */
.sentence-area {
  background: #111;
  border: 1px solid #333;
  border-radius: 6px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.sentence-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #666;
  margin-bottom: 0.5rem;
}

.sentence-display {
  font-size: 1.4rem;
  font-weight: bold;
  min-height: 2.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.sentence-display .slot {
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  border: 1px dashed #444;
  min-width: 3rem;
  text-align: center;
}

.sentence-display .slot.filled.tense { background: #1a2e1f; color: #6ecf8a; border-color: #6ecf8a; border-style: solid; }
.sentence-display .slot.filled.verb { background: #1a2535; color: #5bb8f0; border-color: #5bb8f0; border-style: solid; }
.sentence-display .slot.filled.pronoun { background: #2e2a1a; color: #f0c95b; border-color: #f0c95b; border-style: solid; }
.sentence-display .slot.filled.preposition { background: #251a35; color: #c98af0; border-color: #c98af0; border-style: solid; }
.sentence-display .slot.filled.location { background: #2e1f1a; color: #f08a6e; border-color: #f08a6e; border-style: solid; }

.sentence-display .slot.empty {
  color: #444;
  font-size: 0.8rem;
  font-weight: normal;
}

.translation {
  font-size: 1rem;
  color: #999;
  margin-top: 0.75rem;
  min-height: 1.4rem;
}

/* Controls */
.controls {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.ctrl-btn {
  font-family: 'BerkeleyMono', monospace;
  font-size: 0.8rem;
  padding: 0.5rem 1rem;
  border: 1px solid #444;
  border-radius: 4px;
  background: #222;
  color: #ccc;
  cursor: pointer;
  transition: all 0.15s;
}
.ctrl-btn:hover { background: #333; color: #fff; }
.ctrl-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.ctrl-btn.validate,
.ctrl-btn.check {
  background: #2a3a2a;
  border-color: #4a6a4a;
  color: #8f8;
}
.ctrl-btn.validate:hover,
.ctrl-btn.check:hover { background: #3a5a3a; }

/* Validation / feedback */
.validation-result {
  font-size: 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: 4px;
  margin-bottom: 2rem;
  display: none;
}
.validation-result.valid {
  display: block;
  background: #1a2e1a;
  border: 1px solid #3a5a3a;
  color: #8f8;
}
.validation-result.invalid {
  display: block;
  background: #2e1a1a;
  border: 1px solid #5a3a3a;
  color: #f88;
}

.feedback {
  font-size: 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: 4px;
  margin-bottom: 1.5rem;
  display: none;
}
.feedback.correct {
  display: block;
  background: #1a2e1a;
  border: 1px solid #3a5a3a;
  color: #8f8;
}
.feedback.incorrect {
  display: block;
  background: #2e1a1a;
  border: 1px solid #5a3a3a;
  color: #f88;
}

/* English builder */
.english-builder {
  display: none;
  margin-bottom: 2rem;
}
.english-builder.active { display: block; }
.maori-builder.hidden { display: none; }

.english-input-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.english-select {
  font-family: 'BerkeleyMono', monospace;
  font-size: 0.85rem;
  padding: 0.5rem;
  background: #222;
  color: #e0e0e0;
  border: 1px solid #444;
  border-radius: 4px;
}
.english-select option { background: #222; }

/* Blind mode */
.blind-builder {
  display: none;
  margin-bottom: 2rem;
}
.blind-builder.active { display: block; }

.blind-input {
  font-family: 'BerkeleyMono', monospace;
  font-size: 1.2rem;
  padding: 0.75rem 1rem;
  background: #111;
  color: #fff;
  border: 1px solid #444;
  border-radius: 4px;
  width: 100%;
  max-width: 600px;
}
.blind-input::placeholder { color: #444; }
.blind-input:focus { outline: none; border-color: #888; }

.blind-hint {
  font-size: 0.7rem;
  color: #555;
  margin-top: 0.5rem;
}

.blind-result {
  font-size: 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: 4px;
  margin-top: 1rem;
  display: none;
}
.blind-result.valid {
  display: block;
  background: #1a2e1a;
  border: 1px solid #3a5a3a;
  color: #8f8;
}
.blind-result.invalid {
  display: block;
  background: #2e1a1a;
  border: 1px solid #5a3a3a;
  color: #f88;
}
.blind-result.partial {
  display: block;
  background: #2e2a1a;
  border: 1px solid #5a4a3a;
  color: #f0c95b;
}

/* Grammar notes */
.grammar-note {
  font-size: 0.7rem;
  color: #666;
  margin-top: 1.5rem;
  line-height: 1.6;
  max-width: 700px;
}
.grammar-note strong { color: #999; }

/* Group labels */
.pronoun-group-label,
.location-group-label,
.group-label {
  font-size: 0.65rem;
  color: #555;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.5rem;
  margin-bottom: 0.2rem;
}
.pronoun-group-label:first-child,
.location-group-label:first-child,
.group-label:first-child { margin-top: 0; }

/* Footer */
footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid #333;
  font-size: 0.7rem;
  color: #555;
}