/* ============================================================
   CALCULATOR.CSS — Interactive Calculator Sidebar Styles
   ============================================================ */

/* ============================================================
   CALCULATOR WRAPPER
   ============================================================ */
.calculator-sidebar {
  width: 100%;
}

.calc-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
}

.calc-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

/* ============================================================
   CALCULATOR HEADER
   ============================================================ */
.calc-header {
  padding: var(--space-xl) var(--space-xl) var(--space-lg);
  border-bottom: 1px solid var(--border);
  background: rgba(37, 211, 102, 0.04);
}

.calc-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.calc-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.calc-title-icon {
  font-size: 1.25rem;
}

.calc-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.calc-reset-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
}

.calc-reset-btn:hover {
  color: var(--error);
  border-color: var(--error);
  background: rgba(239, 68, 68, 0.05);
}

/* ============================================================
   CALCULATOR BODY
   ============================================================ */
.calc-body {
  padding: var(--space-lg) var(--space-xl);
  max-height: calc(100vh - 250px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.calc-body::-webkit-scrollbar {
  width: 4px;
}

.calc-body::-webkit-scrollbar-track {
  background: transparent;
}

.calc-body::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
}

/* ============================================================
   CALCULATOR SECTIONS
   ============================================================ */
.calc-section {
  margin-bottom: var(--space-lg);
}

.calc-section-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.calc-section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ============================================================
   CHANNEL COUNTERS
   ============================================================ */
.channel-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.channel-row:last-child {
  border-bottom: none;
}

.channel-row-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

.channel-row-icon svg {
  width: 18px;
  height: 18px;
}

.channel-row-info {
  flex: 1;
  min-width: 0;
}

.channel-row-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.channel-row-note {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.channel-counter {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.counter-btn {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  line-height: 1;
}

.counter-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.counter-btn:hover.increment {
  border-color: rgba(37, 211, 102, 0.5);
  color: var(--primary);
  background: rgba(37, 211, 102, 0.06);
}

.counter-btn.disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.counter-btn.disabled:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
  color: var(--text-secondary);
}

.counter-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  min-width: 20px;
  text-align: center;
  transition: all var(--transition-fast);
}

.counter-value.updated {
  color: var(--primary);
  transform: scale(1.2);
}

.channel-row-price {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: right;
  min-width: 55px;
  flex-shrink: 0;
}

.channel-row-price.has-cost {
  color: var(--primary);
  font-weight: 600;
}

/* ============================================================
   CONFIGURATION OPTIONS
   ============================================================ */
.config-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.config-radio {
  position: relative;
}

.config-radio input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.config-radio-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.config-radio input:checked + .config-radio-label {
  border-color: rgba(37, 211, 102, 0.5);
  background: rgba(37, 211, 102, 0.06);
}

.config-radio-label:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.02);
}

.config-radio-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  transition: all var(--transition-fast);
}

.config-radio input:checked + .config-radio-label .config-radio-dot {
  border-color: var(--primary);
  background: rgba(37, 211, 102, 0.1);
}

.config-radio input:checked + .config-radio-label .config-radio-dot::after {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

.config-radio-content {
  flex: 1;
}

.config-radio-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.config-radio-note {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* EXTRAS checkboxes */
.config-extras {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding-top: var(--space-sm);
  transition: all var(--transition-base);
}

.config-extras.hidden {
  display: none;
}

.config-extra-item {
  position: relative;
}

.config-extra-item input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.config-extra-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.8rem;
}

.config-extra-item input:checked + .config-extra-label {
  border-color: rgba(37, 211, 102, 0.4);
  background: rgba(37, 211, 102, 0.05);
  color: var(--text-primary);
}

.config-extra-item.featured input:checked + .config-extra-label {
  border-color: rgba(102, 126, 234, 0.5);
  background: rgba(102, 126, 234, 0.07);
}

.config-extra-label:hover {
  background: rgba(255, 255, 255, 0.03);
}

.config-extra-checkbox {
  width: 16px;
  height: 16px;
  border-radius: 3px;
  border: 2px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.config-extra-item input:checked + .config-extra-label .config-extra-checkbox {
  background: var(--primary);
  border-color: var(--primary);
}

.config-extra-item.featured input:checked + .config-extra-label .config-extra-checkbox {
  background: #667eea;
  border-color: #667eea;
}

.config-extra-checkbox::after {
  content: '';
  width: 0;
  height: 0;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(0);
  transition: transform var(--transition-fast);
}

.config-extra-item input:checked + .config-extra-label .config-extra-checkbox::after {
  width: 4px;
  height: 7px;
  transform: rotate(45deg) scale(1);
}

.config-extra-text {
  flex: 1;
  color: inherit;
}

.config-extra-price {
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}

.config-extra-item.featured .config-extra-price { color: #8B7CF7; }

/* ============================================================
   SUMMARY / TOTALS
   ============================================================ */
.calc-summary {
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
}

.calc-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 0;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.calc-summary-row .label { flex: 1; }
.calc-summary-row .value {
  font-weight: 600;
  color: var(--text-primary);
  text-align: right;
}

.calc-summary-row.hidden {
  display: none;
}

.calc-divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-sm) 0;
}

.calc-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
}

.calc-total-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
}

.calc-total-value {
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--primary);
  transition: all var(--transition-fast);
}

/* Plan recommendation card */
.calc-plan-rec {
  background: var(--gradient-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
}

.calc-plan-rec-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.calc-plan-rec-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.calc-plan-rec-price {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.calc-plan-rec-channels {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* First Month Summary */
.calc-first-month {
  background: linear-gradient(135deg, rgba(37,211,102,0.08) 0%, rgba(15,52,96,0.15) 100%);
  border: 1px solid rgba(37, 211, 102, 0.25);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
}

.calc-first-month-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.calc-first-month-breakdown {
  margin-bottom: var(--space-sm);
}

.calc-first-month-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-secondary);
  padding: 3px 0;
}

.calc-first-month-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-sm);
  border-top: 1px solid rgba(37, 211, 102, 0.2);
  margin-top: var(--space-xs);
}

.calc-first-month-total-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
}

.calc-first-month-total-value {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--primary);
  transition: all var(--transition-fast);
}

/* ============================================================
   CALCULATOR ACTIONS
   ============================================================ */
.calc-actions {
  padding: var(--space-md) var(--space-xl) var(--space-xl);
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.btn-calc-whatsapp {
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  transition: all var(--transition-base);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}

.btn-calc-whatsapp:hover {
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
  transform: translateY(-2px);
}

.btn-calc-pdf {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  transition: all var(--transition-base);
}

.btn-calc-pdf:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

/* ============================================================
   VALUE ANIMATION
   ============================================================ */
@keyframes valueUpdate {
  0% { transform: scale(1); }
  30% { transform: scale(1.15); color: var(--primary); }
  100% { transform: scale(1); }
}

.value-updating {
  animation: valueUpdate 0.3s ease;
}

/* ============================================================
   MOBILE CALCULATOR FLOATING BUTTON
   Visibility controlled by responsive.css
   ============================================================ */
.calc-fab {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: calc(var(--z-sticky) + 1);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  padding: var(--space-md) var(--space-2xl);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
  transition: all var(--transition-base);
  align-items: center;
  gap: var(--space-sm);
}

.calc-fab:hover {
  transform: translateX(-50%) translateY(-3px);
  box-shadow: 0 12px 40px rgba(37, 211, 102, 0.6);
}

/* ============================================================
   TOTAL ANIMATION
   ============================================================ */
.calc-animated-number {
  font-variant-numeric: tabular-nums;
}