/* ==========================================================================
   ذَرّة | ZARRA — Reaction Classification & Predictor Module Styles
   تصنيف التفاعلات الكيميائية ومسرح النمذجة والتنبؤ بالنواتج
   ========================================================================== */

.rx-types-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

/* شريط تبويبات الأنماط */
.rx-nav-tabs {
  display: flex;
  gap: var(--spacing-sm);
  border-bottom: 2px solid var(--color-border-soft);
  padding-bottom: 2px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.rx-tab-btn {
  background: transparent;
  border: none;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-text-muted);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}

.rx-tab-btn:hover {
  color: var(--color-primary);
}

.rx-tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* البطاقات الرئيسية */
.rx-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.rx-card:hover {
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-md);
}

/* أزرار اختيار نوع التفاعل */
.rx-type-selector-pills {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
}

.rx-type-pill {
  background: #fff;
  border: 1.5px solid var(--color-border-soft);
  border-radius: var(--radius-full);
  padding: 8px 16px;
  font-weight: 700;
  font-size: var(--font-size-xs);
  color: var(--color-text-main);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.rx-type-pill:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.rx-type-pill.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(233, 75, 103, 0.25);
}

/* مسرح إعادة الترتيب البصري */
.rx-visual-theater {
  background: linear-gradient(135deg, #0f172a, #1e293b);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.5);
  margin-bottom: var(--spacing-lg);
}

.rx-general-formula-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  padding: 4px 16px;
  font-family: var(--font-chem-code);
  font-size: 1.1rem;
  font-weight: 700;
  color: #38bdf8;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-md);
}

.rx-particles-stage {
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
  min-height: 120px;
}

.rx-particle-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.rx-ball {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-chem-code);
  font-weight: 800;
  font-size: 1.2rem;
  color: #fff;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4), inset -3px -3px 6px rgba(0, 0, 0, 0.4), inset 3px 3px 6px rgba(255, 255, 255, 0.3);
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.rx-ball-a { background: #ef4444; }
.rx-ball-b { background: #3b82f6; }
.rx-ball-c { background: #10b981; }
.rx-ball-d { background: #f59e0b; }

.rx-sign {
  font-size: 1.8rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.6);
}

.rx-arrow {
  font-size: 2.2rem;
  color: #38bdf8;
  animation: floatArrow 2s infinite ease-in-out;
}

@keyframes floatArrow {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(-8px); }
}

.rx-equation-box {
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: center;
}

.rx-equation-text {
  font-family: var(--font-chem-code);
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  direction: ltr;
  display: inline-block;
}

/* شبكة التنبؤ بالنواتج */
.predictor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}

@media (max-width: 992px) {
  .predictor-grid {
    grid-template-columns: 1fr;
  }
}

.reactants-preset-btn {
  background: #fff;
  border: 1.5px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-family: var(--font-chem-code);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 8px;
}

.reactants-preset-btn:hover {
  border-color: var(--color-primary);
  background: rgba(233, 75, 103, 0.03);
}

.reactants-preset-btn.active {
  border-color: var(--color-primary);
  background: rgba(233, 75, 103, 0.08);
  color: var(--color-primary);
}

.prediction-result-panel {
  background: var(--color-bg-surface-soft);
  border-radius: var(--radius-xl);
  border: 2px dashed var(--color-border-accent);
  padding: var(--spacing-xl);
  text-align: center;
}