/* ============================================
   SPRINT RANK — CALCULATOR SYSTEM STYLES
   Glassmorphism | Premium Forms | Results Animation
   ============================================ */

/* ── Calculator Hub Hero ── */
.calc-hero {
  padding-top: 140px;
  padding-bottom: 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 50% 30%, rgba(47, 47, 228, 0.08) 0%, transparent 60%);
}

.calc-title {
  font-size: clamp(32px, 5vw, 56px);
  margin-bottom: 12px;
}

.calc-subtitle {
  max-width: 600px;
  margin: 0 auto 32px;
  color: var(--text-muted);
  font-size: 16px;
}

/* ── Search & Filter Controls ── */
.calc-controls {
  max-width: 900px;
  margin: 0 auto 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.calc-search-box {
  position: relative;
  width: 100%;
}

.calc-search-input {
  width: 100%;
  padding: 16px 24px 16px 52px;
  border-radius: var(--radius-full);
  background: rgba(17, 16, 36, 0.6);
  border: 1px solid var(--border);
  color: #fff;
  font-size: 16px;
  transition: all var(--transition-base);
}

.calc-search-input:focus {
  outline: none;
  background: rgba(22, 19, 46, 0.8);
  border-color: var(--blue-light);
  box-shadow: var(--shadow-glow);
}

.calc-search-box svg {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  width: 20px;
  height: 20px;
  pointer-events: none;
}

/* ── Filter Pills ── */
.calc-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.calc-filter-pill {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  background: var(--overlay-subtle);
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.calc-filter-pill:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.calc-filter-pill.active {
  background: var(--blue);
  border-color: var(--blue-light);
  color: #fff;
  box-shadow: 0 0 16px rgba(47, 47, 228, 0.35);
}

/* ── Calculator Grid ── */
.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}

.calc-card {
  cursor: pointer;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.calc-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

.calc-card-icon {
  width: 44px;
  height: 44px;
  font-size: 22px;
  background: var(--overlay-medium);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.calc-card:hover .calc-card-icon {
  background: rgba(47, 47, 228, 0.15);
  box-shadow: 0 0 15px rgba(47, 47, 228, 0.15);
}

.calc-card-category {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  color: var(--blue-light);
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.calc-card-title {
  font-size: 16px;
  color: var(--text-primary);
  font-weight: 600;
}

/* ── Interactive Expand Panel ── */
.calc-detail-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(8, 6, 22, 0.85);
  backdrop-filter: blur(12px);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.calc-detail-overlay.open {
  display: flex;
}

.calc-modal {
  width: 100%;
  max-width: 860px;
  max-height: 90vh;
  overflow-y: auto;
  border-radius: var(--radius-lg);
  position: relative;
  animation: modal-enter 0.4s var(--ease-out);
  scrollbar-width: thin;
}

@keyframes modal-enter {
  from { opacity: 0; transform: scale(0.96) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.calc-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--overlay-subtle);
  border: 1px solid var(--border);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 10;
}

.calc-modal-close:hover {
  background: var(--overlay-strong);
  color: var(--text-primary);
  transform: rotate(90deg);
}

.calc-modal-inner {
  padding: 40px;
}

.calc-modal-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.calc-modal-icon {
  font-size: 32px;
  width: 60px;
  height: 60px;
  background: rgba(47, 47, 228, 0.15);
  border: 1px solid var(--border-blue);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.calc-modal-title {
  font-size: 24px;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.calc-modal-category {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  color: var(--blue-light);
}

/* ── Split Panel Layout ── */
.calc-split-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

@media (max-width: 768px) {
  .calc-split-container {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .calc-modal-inner {
    padding: 24px;
  }
}

/* ── Input Panel Styles ── */
.calc-form-group {
  margin-bottom: 24px;
}

.calc-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.calc-input-wrapper {
  position: relative;
  width: 100%;
}

.calc-input {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: rgba(8, 6, 22, 0.5);
  border: 1px solid var(--border);
  color: #fff;
  font-size: 15px;
  transition: all var(--transition-base);
}

.calc-input:focus {
  outline: none;
  border-color: var(--blue-light);
  box-shadow: 0 0 12px rgba(47, 47, 228, 0.15);
  background: rgba(8, 6, 22, 0.7);
}

.calc-btn-calculate {
  width: 100%;
  margin-top: 16px;
  padding: 14px;
}

/* ── Results Panel Styles ── */
.calc-results-panel {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  height: 100%;
}

.calc-results-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.calc-results-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.calc-result-item {
  background: var(--overlay-subtle);
  border: 1px solid var(--border);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calc-result-label {
  font-size: 13px;
  color: var(--text-muted);
}

.calc-result-value {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-sans);
}

/* ── Red Opportunity Cost Hook ── */
.calc-opp-cost-card {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.08) 0%, rgba(239, 68, 68, 0.03) 100%);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-top: auto;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.05);
}

.calc-opp-cost-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--red);
}

.calc-opp-cost-header {
  color: var(--red);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.calc-opp-cost-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.calc-opp-cost-text strong {
  color: var(--red);
  font-weight: 700;
}

.calc-modal-cta {
  margin-top: 24px;
  width: 100%;
}