/* LetterFind page styles */

/* ===== Tool-scoped Custom Properties ===== */
.letterfind-root {
  --bg:           #f8fbf7;
  --surface:      #ffffff;
  --surface-alt:  #f3f7f4;
  --border:       #d8e0d9;
  --border-focus: #16735f;
  --accent:       #16735f;
  --accent-dark:  #0f4f43;
  --accent-light: #e4f3ee;
  --secondary:    #d9902f;
  --secondary-soft: #fff1d8;
  --secondary-ink: #614009;
  --text:         #1e2a23;
  --text-muted:   #5f6d65;
  --text-light:   #8f9992;
  --chip-bg:      #f3f7f4;
  --chip-border:  #d8e0d9;
  --chip-hover:   #e4f3ee;
  --danger:       #c0392b;
  --shadow-sm:    0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:    var(--shadow);
  --radius-sm:    4px;
  --radius-md:    8px;
  --radius-lg:    8px;
  --font:         system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono:    ui-monospace, "Cascadia Code", "Consolas", monospace;
  --transition:   0.15s ease;
}

@media (prefers-color-scheme: dark) {
  .letterfind-root {
    --bg:           #141614;
    --surface:      #1d211f;
    --surface-alt:  #252b28;
    --border:       #39413d;
    --border-focus: #4dbb9f;
    --accent:       #4dbb9f;
    --accent-dark:  #95e6d2;
    --accent-light: #17372f;
    --secondary:    #f0b45d;
    --secondary-soft: #3b2b18;
    --secondary-ink: #ffe6ba;
    --text:         #f4f1ea;
    --text-muted:   #b8c0ba;
    --text-light:   #8f9992;
    --chip-bg:      #1d3530;
    --chip-border:  #2f4a45;
    --chip-hover:   #1a3d38;
    --danger:       #ffb0a6;
    --shadow-sm:    0 1px 3px rgba(0,0,0,0.24);
    --shadow-md:    0 4px 12px rgba(0,0,0,0.30);
  }
}

html[data-theme="light"] .letterfind-root {
  --bg:           #f8fbf7;
  --surface:      #ffffff;
  --surface-alt:  #f3f7f4;
  --border:       #d8e0d9;
  --border-focus: #16735f;
  --accent:       #16735f;
  --accent-dark:  #0f4f43;
  --accent-light: #e4f3ee;
  --secondary:    #d9902f;
  --secondary-soft: #fff1d8;
  --secondary-ink: #614009;
  --text:         #1e2a23;
  --text-muted:   #5f6d65;
  --text-light:   #8f9992;
  --chip-bg:      #f3f7f4;
  --chip-border:  #d8e0d9;
  --chip-hover:   #e4f3ee;
  --danger:       #c0392b;
  --shadow-sm:    0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:    var(--shadow);
}

html[data-theme="dark"] .letterfind-root {
  --bg:           #141614;
  --surface:      #1d211f;
  --surface-alt:  #252b28;
  --border:       #39413d;
  --border-focus: #4dbb9f;
  --accent:       #4dbb9f;
  --accent-dark:  #95e6d2;
  --accent-light: #17372f;
  --secondary:    #f0b45d;
  --secondary-soft: #3b2b18;
  --secondary-ink: #ffe6ba;
  --text:         #f4f1ea;
  --text-muted:   #b8c0ba;
  --text-light:   #8f9992;
  --chip-bg:      #1d3530;
  --chip-border:  #2f4a45;
  --chip-hover:   #1a3d38;
  --danger:       #ffb0a6;
  --shadow-sm:    0 1px 3px rgba(0,0,0,0.24);
  --shadow-md:    0 4px 12px rgba(0,0,0,0.30);
}

/* ===== Layout ===== */
.word-unscrambler-shell {
  display: grid;
  gap: 1.5rem;
  align-items: start;
  padding: 1rem 0 2.5rem;
  margin: 0;
}

.page-wrap {
  width: 100%;
  min-width: 0;
}

/* ===== Header ===== */
.letterfind-local-header {
  display: flex;
  align-items: center;
  min-height: 3rem;
  margin-bottom: 0.9rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-alt);
}

.tagline {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* ===== Tool Card ===== */
.letterfind-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1rem, 4vw, 1.5rem);
  box-shadow: var(--shadow-md);
  min-width: 0;
  position: relative;
  overflow: clip;
}

/* ===== Main Input ===== */
.main-input-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
  min-width: 0;
}

#letter-input {
  flex: 1;
  min-width: 0;
  font-size: 1.35rem;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  text-transform: uppercase;
}

#letter-input::placeholder {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: normal;
  text-transform: none;
  color: var(--text-light);
  font-family: var(--font);
}

#letter-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.btn-primary {
  padding: 14px 22px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition);
  letter-spacing: 0.01em;
  min-width: 0;
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  padding: 14px 16px;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
  min-width: 0;
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: var(--accent-light);
}


/* ===== Quick Actions ===== */
.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.btn-mini {
  min-height: 44px;
  border: 1px solid var(--chip-border);
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--accent-dark);
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 12px;
  transition: all var(--transition);
}

.btn-mini:hover {
  border-color: var(--accent);
  background: var(--chip-hover);
  transform: translateY(-1px);
}

.btn-mini.active {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}
/* ===== Wildcard hint ===== */
.wildcard-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 8px;
  overflow-wrap: anywhere;
}

.wildcard-hint.warning {
  color: var(--danger);
  font-weight: 600;
}

.wildcard-hint code {
  font-family: var(--font-mono);
  background: var(--surface-alt);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.8em;
  color: var(--accent-dark);
}

/* ===== Example Chips ===== */
.example-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 16px;
  min-width: 0;
}

.example-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-right: 2px;
}

.example-chip {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 5px 10px;
  min-height: 44px;
  background: var(--chip-bg);
  border: 1px solid var(--chip-border);
  border-radius: 999px;
  cursor: pointer;
  color: var(--accent-dark);
  transition: all var(--transition);
  max-width: 100%;
}

.example-chip:hover {
  background: var(--chip-hover);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.example-chip:active {
  transform: translateY(0);
}

/* ===== Filter Panel ===== */
.filter-panel {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-top: 18px;
  min-width: 0;
}

.filter-toggle {
  background: none;
  border: none;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 0 2px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.filter-toggle:hover {
  color: var(--accent-dark);
}

.filter-toggle .arrow {
  transition: transform var(--transition);
  font-style: normal;
  display: inline-block;
}

.filter-toggle.open .arrow {
  transform: rotate(90deg);
}

.filter-body {
  display: none;
  margin-top: 14px;
}

.filter-body.open {
  display: block;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  min-width: 0;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.filter-group label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.filter-input {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: 0.9rem;
  font-family: var(--font);
  color: var(--text);
  transition: border-color var(--transition);
  min-width: 0;
  width: 100%;
}

.filter-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 16%, transparent);
}

.filter-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.filter-hint code {
  font-family: var(--font-mono);
  background: var(--surface-alt);
  border-radius: 3px;
  padding: 1px 4px;
}

/* ===== Length Toggles ===== */
.length-group {
  grid-column: 1 / -1;
}

.length-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
}

.len-btn {
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.82rem;
  font-weight: 500;
  font-family: var(--font);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.len-btn:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.len-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.len-btn[data-len="5"].active,
#btn-five-letter.active {
  background: var(--secondary);
  border-color: var(--secondary);
  color: var(--pointer-ink, #252826);
}

/* ===== Sort Controls ===== */
.sort-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.sort-select {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: 0.9rem;
  font-family: var(--font);
  color: var(--text);
  cursor: pointer;
  transition: border-color var(--transition);
  min-width: 0;
  width: 100%;
}

.sort-select:focus {
  outline: none;
  border-color: var(--border-focus);
}

/* ===== Results Area ===== */
.results-area {
  margin-top: 1rem;
  min-width: 0;
}

#results-summary {
  min-height: 1.75rem;
}

.results-summary {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  font-weight: 500;
}

.results-summary strong {
  color: var(--accent-dark);
  font-size: 1rem;
}

.results-empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  overflow-wrap: anywhere;
}

.results-empty .empty-icon {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.results-empty p {
  font-size: 1rem;
  line-height: 1.5;
}

.results-empty p + p {
  margin-top: 6px;
  font-size: 0.88rem;
  color: var(--text-light);
}

.results-placeholder {
  text-align: center;
  padding: 36px 20px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-alt);
  color: var(--text-muted);
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

/* ===== Length Groups ===== */
.length-group-section {
  margin-bottom: 20px;
}

.length-group-header {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.length-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.length-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 400;
}

.word-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
}

.word-chip {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 5px 11px;
  background: var(--chip-bg);
  border: 1px solid var(--chip-border);
  border-radius: 6px;
  color: var(--accent-dark);
  cursor: default;
  transition: all var(--transition);
  position: relative;
  text-transform: uppercase;
  max-width: 100%;
  overflow-wrap: anywhere;
}

.word-chip:hover {
  background: var(--chip-hover);
  border-color: var(--accent);
  transform: translateY(-1px);
}


.word-score {
  margin-left: 6px;
  border-left: 1px solid rgba(31, 92, 80, 0.22);
  padding-left: 6px;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: normal;
}

/* Tooltip on hover */
.word-chip[data-len]:hover::after {
  content: attr(data-len) " letters";
  position: absolute;
  bottom: calc(100% + 5px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.75);
  color: #fff;
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: normal;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  z-index: 10;
}

/* ===== How It Works Section ===== */
.info-section {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  min-width: 0;
}

.info-section h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  min-width: 0;
}

.info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  min-width: 0;
}

.info-card h3 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent-dark);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.info-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.info-card code {
  font-family: var(--font-mono);
  background: var(--surface-alt);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.85em;
  color: var(--accent-dark);
}

/* .site-footer is styled by the site-wide styles.css */

/* ===== Spinner (for future async use) ===== */
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .page-wrap {
    padding-inline: 0;
  }

  .letterfind-local-header h1 { font-size: 1.4rem; }

  .tagline {
    font-size: 0.86rem;
    overflow-wrap: anywhere;
  }

  .main-input-row {
    flex-wrap: wrap;
  }

  #letter-input {
    flex-basis: 100%;
    font-size: 1.15rem;
    padding: 12px 14px;
    width: 100%;
  }

  .btn-primary, .btn-secondary, .btn-mini {
    flex: 1 1 calc(50% - 5px);
    min-width: 0;
    text-align: center;
    padding-inline: 12px;
  }

  .wildcard-hint {
    line-height: 1.55;
  }

  .letterfind-card {
    padding: 16px;
  }

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

  .len-btn {
    padding: 4px 10px;
    font-size: 0.8rem;
  }

  .word-chip {
    font-size: 0.8rem;
    padding: 4px 9px;
  }

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

@media (max-width: 380px) {
  .page-wrap {
    padding-inline: 0;
  }

  .letterfind-card {
    padding: 14px;
  }

  .btn-primary, .btn-secondary, .btn-mini {
    flex-basis: 100%;
  }

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

@media (min-width: 960px) {
  .word-unscrambler-shell {
    grid-template-columns: minmax(0, 1fr) 180px;
  }

  .word-unscrambler-shell .ad-slot-sidebar {
    align-self: start;
  }
}