/* ═══════════════════════════════════════════════════════════
   Subscriber Milestone Calculator — Page-Specific CSS
   Uses shared component classes + CSS variables only.
   ═══════════════════════════════════════════════════════════ */

/* ── Input Section ── */
.smc-section-title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin: 0 0 var(--space-4) 0;
}

.smc-input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.smc-required {
  color: var(--color-danger);
  font-weight: 600;
}

.smc-optional {
  color: var(--color-gray-400);
  font-size: var(--font-size-xs);
  font-weight: 400;
}

.smc-calculate-btn {
  margin-top: var(--space-6);
  width: 100%;
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
}

/* ── Advanced Toggle ── */
.smc-advanced {
  margin-top: var(--space-4);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.smc-advanced__toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-600);
  cursor: pointer;
  list-style: none;
  transition: color 150ms ease;
}

.smc-advanced__toggle:hover {
  color: var(--color-primary);
}

.smc-advanced__toggle::-webkit-details-marker {
  display: none;
}

.smc-advanced__toggle i {
  color: var(--color-primary);
}

.smc-advanced__body {
  padding: var(--space-4);
  border-top: 1px solid var(--color-gray-200);
  background: var(--color-gray-50);
}

.smc-advanced__hint {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--space-4);
}

/* ── Results Section ── */
.smc-results {
  margin-top: var(--space-6);
}

/* ── Summary Card ── */
.smc-summary-card {
  margin-bottom: var(--space-4);
}

.smc-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.smc-summary-stat {
  text-align: center;
}

.smc-summary-stat__label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.smc-summary-stat__value {
  display: block;
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-gray-900);
}

.smc-summary-stat__value--grade {
  font-size: 2rem;
}

.smc-summary-stat__value--highlight {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
}

/* ── Progress Bar ── */
.smc-next-progress {
  border-top: 1px solid var(--color-gray-100);
  padding-top: var(--space-4);
}

.smc-next-progress__info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  font-weight: 500;
}

.smc-next-progress__bar {
  height: 12px;
  background: var(--color-gray-100);
  border-radius: 6px;
  overflow: hidden;
}

.smc-next-progress__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
  border-radius: 6px;
  transition: width 600ms ease;
}

.smc-next-progress__eta {
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  text-align: center;
}

/* ── Tabs ── */
.smc-tabs {
  margin-bottom: var(--space-4);
}

.smc-tab-panel {
  display: none;
}

.smc-tab-panel--active {
  display: block;
}

/* ── Roadmap ── */
.smc-roadmap-legend {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.smc-legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.smc-legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.smc-legend-dot--passed {
  background: var(--color-success);
}

.smc-legend-dot--next {
  background: var(--color-primary);
}

.smc-legend-dot--future {
  background: var(--color-gray-300);
}

/* ── Roadmap Items ── */
.smc-roadmap-item {
  display: flex;
  gap: var(--space-4);
  position: relative;
  padding-bottom: var(--space-6);
}

.smc-roadmap-item:last-child {
  padding-bottom: 0;
}

.smc-roadmap-item__line {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  flex-shrink: 0;
  width: 40px;
}

.smc-roadmap-item__line::after {
  content: '';
  position: absolute;
  top: 40px;
  bottom: -24px;
  width: 2px;
  background: var(--color-gray-200);
}

.smc-roadmap-item:last-child .smc-roadmap-item__line::after {
  display: none;
}

.smc-roadmap-item--passed .smc-roadmap-item__line::after {
  background: var(--color-success);
}

.smc-roadmap-item__dot {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 3px solid var(--color-gray-300);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.smc-roadmap-item--passed .smc-roadmap-item__dot {
  background: var(--color-success);
  border-color: var(--color-success);
  color: var(--color-white);
}

.smc-roadmap-item--next .smc-roadmap-item__dot {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
  animation: smc-pulse 2s ease-in-out infinite;
}

@keyframes smc-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15); }
  50% { box-shadow: 0 0 0 8px rgba(79, 70, 229, 0.08); }
}

.smc-roadmap-item__content {
  flex: 1;
  min-width: 0;
}

.smc-roadmap-item__header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-1);
}

.smc-roadmap-item__count {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.smc-roadmap-item__reward {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin: var(--space-1) 0 var(--space-2);
}

.smc-roadmap-item__reward i {
  margin-right: var(--space-1);
  color: var(--color-gray-400);
  font-size: var(--font-size-xs);
}

.smc-roadmap-item--passed .smc-roadmap-item__content {
  opacity: 0.6;
}

.smc-roadmap-item__projections {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.smc-roadmap-item__proj {
  display: flex;
  flex-direction: column;
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  min-width: 140px;
}

.smc-roadmap-item__proj-label {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.smc-roadmap-item__proj-date {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-800);
}

.smc-roadmap-item__proj-days {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

.smc-roadmap-item__no-data {
  font-size: var(--font-size-sm);
  color: var(--color-gray-400);
  font-style: italic;
}

/* ── What-If Planner ── */
.smc-whatif-intro {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--space-4);
}

.smc-whatif-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.smc-whatif-slider label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-1);
}

.smc-range {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--color-gray-200);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.smc-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 2px solid var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: transform 150ms ease;
}

.smc-range::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.smc-range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: 2px solid var(--color-white);
  box-shadow: var(--shadow-sm);
}

.smc-whatif-comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-4);
  align-items: start;
}

.smc-whatif-col__title {
  font-family: var(--font-display);
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-gray-700);
  margin-bottom: var(--space-3);
  text-align: center;
}

.smc-whatif-col--scenario .smc-whatif-col__title {
  color: var(--color-primary);
}

.smc-whatif-divider {
  display: flex;
  align-items: center;
  padding-top: var(--space-8);
  color: var(--color-gray-300);
  font-size: var(--font-size-xl);
}

.smc-whatif-milestone {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-3);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
  text-align: center;
}

.smc-whatif-milestone__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--font-size-base);
  color: var(--color-gray-800);
}

.smc-whatif-milestone__date {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin-top: var(--space-1);
}

.smc-whatif-milestone__date--none {
  color: var(--color-gray-400);
  font-style: italic;
}

.smc-whatif-milestone__diff {
  font-size: var(--font-size-xs);
  font-weight: 600;
  margin-top: var(--space-1);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
}

.smc-whatif-milestone__diff--faster {
  color: var(--color-success);
  background: rgba(16, 185, 129, 0.1);
}

.smc-whatif-milestone__diff--slower {
  color: var(--color-danger);
  background: rgba(239, 68, 68, 0.1);
}

.smc-whatif-empty {
  text-align: center;
  color: var(--color-gray-400);
  font-style: italic;
  padding: var(--space-6) 0;
}

/* ── Share Card ── */
.smc-share-intro {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--space-4);
}

.smc-share-preview {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-gray-200);
  margin-bottom: var(--space-4);
}

.smc-share-preview canvas {
  display: block;
  width: 100%;
  height: auto;
}

.smc-share-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
}

/* ── Tips Card ── */
.smc-tips-card {
  margin-top: var(--space-4);
}

.smc-tips-card .smc-section-title i {
  color: var(--color-warning);
  margin-right: var(--space-2);
}

.smc-tips-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.smc-tips-list li {
  position: relative;
  padding: var(--space-3) 0 var(--space-3) var(--space-6);
  font-size: var(--font-size-sm);
  color: var(--color-gray-700);
  border-bottom: 1px solid var(--color-gray-100);
}

.smc-tips-list li:last-child {
  border-bottom: none;
}

.smc-tips-list li::before {
  content: '\f0eb';
  font-family: 'Font Awesome 5 Free';
  font-weight: 900;
  position: absolute;
  left: 0;
  color: var(--color-warning);
  font-size: var(--font-size-sm);
}

/* ══════════════════════════════════════════════════════════
   MOBILE RESPONSIVE
   ══════════════════════════════════════════════════════════ */
@media (max-width: 767px) {
  .smc-input-grid {
    grid-template-columns: 1fr;
  }

  .smc-summary-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }

  .smc-summary-stat__value {
    font-size: var(--font-size-lg);
  }

  .smc-summary-stat__value--grade {
    font-size: var(--font-size-xl);
  }

  .smc-summary-stat__value--highlight {
    font-size: var(--font-size-base);
  }

  .smc-roadmap-item__projections {
    flex-direction: column;
    gap: var(--space-2);
  }

  .smc-roadmap-item__proj {
    min-width: 0;
  }

  .smc-whatif-comparison {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .smc-whatif-divider {
    justify-content: center;
    padding: 0;
    transform: rotate(90deg);
  }

  .smc-roadmap-legend {
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  .smc-share-actions {
    flex-direction: column;
  }

  .smc-share-actions .button {
    width: 100%;
  }

  .smc-roadmap-item__dot {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-xs);
  }

  .smc-roadmap-item__line {
    width: 32px;
  }

  .smc-roadmap-item__line::after {
    top: 32px;
  }

  .smc-roadmap-item__count {
    font-size: var(--font-size-base);
  }
}

@media (max-width: 480px) {
  .smc-summary-grid {
    grid-template-columns: 1fr 1fr;
  }

  .smc-tabs .tabs__item {
    font-size: var(--font-size-xs);
    padding: var(--space-2) var(--space-3);
  }
}