/* Concrete Calculator Pro - Stylesheet */

:root {
  --cc-primary: #e85d04;
  --cc-primary-dark: #c44d00;
  --cc-bg: #0f0f0f;
  --cc-surface: #1a1a1a;
  --cc-surface2: #242424;
  --cc-border: #333;
  --cc-text: #f0f0f0;
  --cc-text-muted: #888;
  --cc-highlight: #fff7f0;
  --cc-radius: 12px;
  --cc-font: 'Georgia', serif;
  --cc-mono: 'Courier New', monospace;
}

.ccpro-wrapper {
  font-family: var(--cc-font);
  background: var(--cc-bg);
  color: var(--cc-text);
  border-radius: var(--cc-radius);
  padding: 32px;
  max-width: 860px;
  margin: 24px auto;
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
  border: 1px solid var(--cc-border);
}

.ccpro-header {
  text-align: center;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--cc-border);
  padding-bottom: 20px;
}

.ccpro-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--cc-primary);
  margin: 0 0 6px 0;
  letter-spacing: -0.02em;
}

.ccpro-subtitle {
  color: var(--cc-text-muted);
  font-size: 0.95rem;
  margin: 0;
  font-family: sans-serif;
}

/* Tabs */
.ccpro-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.ccpro-tab {
  background: var(--cc-surface);
  border: 1px solid var(--cc-border);
  color: var(--cc-text-muted);
  padding: 9px 18px;
  border-radius: 8px;
  cursor: pointer;
  font-family: sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.ccpro-tab:hover {
  border-color: var(--cc-primary);
  color: var(--cc-primary);
}

.ccpro-tab.active {
  background: var(--cc-primary);
  border-color: var(--cc-primary);
  color: #fff;
  font-weight: 700;
}

/* Unit toggle */
.ccpro-unit-toggle {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
  font-family: sans-serif;
  font-size: 0.88rem;
  color: var(--cc-text-muted);
}

.ccpro-unit-toggle label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  color: var(--cc-text);
}

.ccpro-unit-toggle input[type="radio"] {
  accent-color: var(--cc-primary);
}

/* Panels */
.ccpro-panel {
  display: none;
}

.ccpro-panel.active {
  display: block;
}

/* Form Grid */
.ccpro-form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.ccpro-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ccpro-field label {
  font-size: 0.82rem;
  color: var(--cc-text-muted);
  font-family: sans-serif;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ccpro-field input[type="number"] {
  background: var(--cc-surface2);
  border: 1px solid var(--cc-border);
  color: var(--cc-text);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--cc-mono);
  transition: border-color 0.2s;
  width: 100%;
  box-sizing: border-box;
}

.ccpro-field input[type="number"]:focus {
  border-color: var(--cc-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(232, 93, 4, 0.15);
}

/* Price row */
.ccpro-price-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0;
  flex-wrap: wrap;
  font-family: sans-serif;
  font-size: 0.9rem;
  color: var(--cc-text-muted);
}

.ccpro-price-row input[type="number"] {
  background: var(--cc-surface2);
  border: 1px solid var(--cc-border);
  color: var(--cc-text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.95rem;
  width: 100px;
  font-family: var(--cc-mono);
}

.ccpro-price-row select {
  background: var(--cc-surface2);
  border: 1px solid var(--cc-border);
  color: var(--cc-text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-family: sans-serif;
}

/* Calculate Button */
.ccpro-btn {
  background: var(--cc-primary);
  color: #fff;
  border: none;
  padding: 13px 36px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  font-family: sans-serif;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  letter-spacing: 0.04em;
  display: block;
}

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

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

/* Results */
.ccpro-results {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--cc-border);
  animation: ccpro-fadein 0.4s ease;
}

@keyframes ccpro-fadein {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.ccpro-results-title {
  font-size: 1.2rem;
  color: var(--cc-primary);
  margin: 0 0 16px 0;
}

.ccpro-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.ccpro-result-card {
  background: var(--cc-surface);
  border: 1px solid var(--cc-border);
  border-radius: 10px;
  padding: 14px 16px;
  text-align: center;
}

.ccpro-result-card.highlight {
  background: rgba(232, 93, 4, 0.1);
  border-color: var(--cc-primary);
}

.ccpro-result-label {
  font-size: 0.72rem;
  color: var(--cc-text-muted);
  font-family: sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 6px;
}

.ccpro-result-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--cc-text);
  font-family: var(--cc-mono);
}

.ccpro-result-card.highlight .ccpro-result-value {
  color: var(--cc-primary);
}

.ccpro-note {
  font-size: 0.78rem;
  color: var(--cc-text-muted);
  font-family: sans-serif;
  margin-top: 16px;
  line-height: 1.5;
}

/* Unit label badges */
.ccpro-unit-label,
.ccpro-unit-label-small {
  font-size: 0.72rem;
  background: var(--cc-surface2);
  border: 1px solid var(--cc-border);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--cc-text-muted);
  font-family: sans-serif;
  margin-left: 4px;
}

/* Error state */
.ccpro-error {
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.4);
  color: #fca5a5;
  padding: 10px 14px;
  border-radius: 8px;
  font-family: sans-serif;
  font-size: 0.88rem;
  margin-top: 12px;
}

/* Responsive */
@media (max-width: 600px) {
  .ccpro-wrapper {
    padding: 20px 16px;
  }
  .ccpro-tabs {
    gap: 4px;
  }
  .ccpro-tab {
    padding: 7px 12px;
    font-size: 0.8rem;
  }
  .ccpro-form-grid {
    grid-template-columns: 1fr 1fr;
  }
  .ccpro-results-grid {
    grid-template-columns: 1fr 1fr;
  }
  .ccpro-title {
    font-size: 1.5rem;
  }
}