/* ============================================================
   SOLVER PAGE STYLES
   Pattern matching interface
   ============================================================ */

.solver-hero {
  background: linear-gradient(135deg, var(--ink) 0%, #2a2a2a 100%);
  color: var(--paper);
  padding: var(--space-2xl) 0;
  text-align: center;
}

.solver-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-sm);
}

.solver-subtitle {
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  margin-bottom: var(--space-2xl);
}

.solver-form-wrapper {
  max-width: 600px;
  margin: 0 auto;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: var(--space-xl);
}

.solver-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  text-align: left;
}

.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.9);
}

.solver-input {
  padding: 0.9rem 1.2rem;
  font-size: 1rem;
  font-family: var(--font-body);
  background: rgba(255,255,255,0.95);
  border: 2px solid transparent;
  border-radius: 8px;
  color: var(--ink);
  transition: all 0.2s;
}

.solver-input:focus {
  outline: none;
  background: white;
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.pattern-input {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.pattern-input-wrapper {
  position: relative;
}

.pattern-length {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.85rem;
  color: var(--ink-soft);
  background: white;
  padding: 0.2em 0.6em;
  border-radius: 4px;
}

.input-hint {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
}

.solver-select {
  padding: 0.9rem 1.2rem;
  font-size: 1rem;
  background: rgba(255,255,255,0.95);
  border: 2px solid transparent;
  border-radius: 8px;
  color: var(--ink);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%234a4a4a' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 3rem;
}

.advanced-options {
  background: rgba(0,0,0,0.2);
  border-radius: 8px;
  padding: var(--space-md);
}

.advanced-options summary {
  cursor: pointer;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  padding: var(--space-sm);
  list-style: none;
  position: relative;
  padding-left: 1.5rem;
}

.advanced-options summary::before {
  content: '▸';
  position: absolute;
  left: 0;
  transition: transform 0.2s;
}

.advanced-options[open] summary::before {
  transform: rotate(90deg);
}

.advanced-content {
  padding-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  color: rgba(255,255,255,0.8);
}

.solver-submit {
  padding: 1rem 2rem;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.quick-examples {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,0.1);
}

.quick-examples h3 {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-md);
}

.example-chips {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.example-chip {
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  color: rgba(255,255,255,0.9);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}

.example-chip:hover {
  background: rgba(255,255,255,0.2);
  border-color: var(--accent);
}

/* Results Section */
.solver-results {
  padding: var(--space-2xl) 0;
  background: var(--paper-warm);
  min-height: 300px;
}

.solver-results[hidden] {
  display: none;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.results-header h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
}

.result-count {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--space-md);
}

.result-card {
  background: var(--paper);
  border: 2px solid var(--cream);
  border-radius: 8px;
  padding: var(--space-md);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.result-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.result-word {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.result-confidence {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.confidence-bar {
  width: 60px;
  height: 4px;
  background: var(--cream);
  border-radius: 2px;
  overflow: hidden;
}

.confidence-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  transition: width 0.3s;
}

.confidence-percent {
  font-size: 0.75rem;
  color: var(--ink-soft);
  font-weight: 600;
}

.result-clues {
  font-size: 0.8rem;
  color: var(--ink-soft);
  font-style: italic;
  line-height: 1.4;
}

.copy-btn {
  margin-top: var(--space-sm);
  padding: 0.3rem 0.8rem;
  background: var(--paper-warm);
  border: 1px solid var(--cream);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover {
  background: var(--ink);
  color: var(--paper);
}

.no-results {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--ink-soft);
}

.no-results svg {
  opacity: 0.3;
  margin-bottom: var(--space-md);
}

.no-results h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--ink);
  margin-bottom: var(--space-sm);
}

/* How to Use */
.how-to-use {
  padding: var(--space-2xl) 0;
  background: var(--paper);
}

.how-to-use h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  text-align: center;
  margin-bottom: var(--space-xl);
}

.instructions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  max-width: 900px;
  margin: 0 auto var(--space-2xl);
}

.instruction {
  text-align: center;
}

.instruction-number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: var(--paper);
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin: 0 auto var(--space-md);
}

.instruction h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
}

.instruction p {
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.6;
}

.pattern-examples {
  max-width: 600px;
  margin: 0 auto;
  background: var(--paper-warm);
  border-radius: 8px;
  padding: var(--space-lg);
}

.pattern-examples h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: var(--space-md);
}

.examples-table {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.example-row {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-sm);
  background: var(--paper);
  border-radius: 6px;
}

.example-row code {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 80px;
}

.example-row span {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

/* Popular Searches */
.popular-searches {
  padding: var(--space-2xl) 0;
  background: var(--paper-warm);
  border-top: 1px solid var(--cream);
}

.popular-searches h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  text-align: center;
  margin-bottom: var(--space-xl);
}

.popular-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  max-width: 900px;
  margin: 0 auto;
}

.popular-card {
  background: var(--paper);
  border: 1px solid var(--cream);
  border-radius: 8px;
  padding: var(--space-md);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: all 0.2s;
}

.popular-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.popular-title {
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--space-xs);
}

.popular-desc {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

/* Responsive */
@media (max-width: 768px) {
  .instructions-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .results-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }

  .example-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }
}