/* ============================================
   Bitcoin Net Worth Calculator - Styles
   ============================================ */

/* --- Calculator Hero --- */
.calc-hero {
  position: relative;
  padding: 158px 24px 48px;
  text-align: center;
  z-index: 1;
}

.calc-hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: 100px;
  background: rgba(247, 147, 26, 0.1);
  border: 1px solid rgba(247, 147, 26, 0.25);
  color: var(--accent-orange);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
  animation: fadeInDown 0.8s ease;
}

.calc-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.calc-hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 620px;
  margin: 0 auto;
  animation: fadeInUp 0.8s ease 0.2s both;
}

/* --- Calculator Section --- */
.calc-section {
  position: relative;
  z-index: 1;
  padding: 0 0 80px;
}

.calc-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  align-items: start;
}

/* --- Input Column --- */
.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.calc-group-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.calc-group-title svg {
  color: var(--accent-orange);
}

.calc-group-liabilities .calc-group-title svg {
  color: #f87171;
}

/* --- Category Cards --- */
.calc-category {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s;
}

.calc-category:hover {
  border-color: var(--border-color);
}

.calc-category-btc {
  border-color: rgba(247, 147, 26, 0.25);
  background: linear-gradient(135deg, rgba(247, 147, 26, 0.03), var(--bg-card));
}

.calc-category-btc:hover {
  border-color: rgba(247, 147, 26, 0.4);
}

.calc-category-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.2s;
  font-family: var(--font-main);
}

.calc-category-header:hover {
  background: rgba(255, 255, 255, 0.02);
}

.calc-category-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.calc-category-icon {
  font-size: 1.2rem;
}

.calc-category-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.calc-category-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.calc-category-total {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.calc-chevron {
  color: var(--text-muted);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  flex-shrink: 0;
}

.calc-category.open .calc-chevron {
  transform: rotate(180deg);
}

/* Collapsible body */
.calc-category-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              padding 0.3s ease;
  padding: 0 20px;
}

.calc-category.open .calc-category-body {
  max-height: 500px;
  padding: 0 20px 20px;
}

/* --- Input Fields --- */
.calc-field {
  margin-bottom: 14px;
}

.calc-field:last-child {
  margin-bottom: 0;
}

.calc-field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.calc-input-wrap {
  display: flex;
  align-items: center;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.calc-input-wrap:focus-within {
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 3px rgba(247, 147, 26, 0.1);
}

.calc-input-btc:focus-within {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.calc-input-prefix {
  padding: 10px 0 10px 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-muted);
  user-select: none;
}

.calc-input-btc .calc-input-prefix {
  color: var(--accent-orange);
}

.calc-input-wrap input {
  flex: 1;
  padding: 10px 14px 10px 8px;
  background: none;
  border: none;
  outline: none;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  width: 100%;
}

.calc-input-wrap input::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}

/* Remove number spinners */
.calc-input-wrap input::-webkit-outer-spin-button,
.calc-input-wrap input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.calc-input-wrap input[type=number] {
  -moz-appearance: textfield;
}

/* BTC hint */
.calc-field-hint {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.calc-hint-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-orange);
  animation: btcPulse 2s ease-in-out infinite;
}

/* --- Results Panel --- */
.calc-results {
  position: sticky;
  top: 100px;
}

.calc-results-inner {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.calc-results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.calc-results-header h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}

.calc-live-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  color: #4ade80;
  background: rgba(74, 222, 128, 0.08);
  padding: 4px 10px;
  border-radius: 100px;
  letter-spacing: 0.3px;
}

.calc-live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4ade80;
  animation: btcPulse 2s ease-in-out infinite;
}

/* Net Worth */
.calc-net-worth {
  text-align: center;
  padding: 20px 0;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(247, 147, 26, 0.05), rgba(255, 215, 0, 0.03));
  border: 1px solid rgba(247, 147, 26, 0.1);
}

.calc-net-worth-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}

.calc-net-worth-value {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.calc-net-worth-value.negative {
  background: linear-gradient(135deg, #f87171, #ef4444);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* BTC Denomination */
.calc-btc-worth {
  text-align: center;
  padding: 14px 0;
}

.calc-btc-worth-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 500;
}

.calc-btc-worth-value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-gold);
}

/* Totals */
.calc-totals {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.calc-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calc-total-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.calc-total-value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
}

.calc-total-assets .calc-total-value {
  color: #4ade80;
}

.calc-total-liabilities .calc-total-value {
  color: #f87171;
}

/* Allocation Bar */
.calc-allocation {
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.calc-allocation-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.calc-allocation-pct {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent-orange);
}

.calc-allocation-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 100px;
  overflow: hidden;
}

.calc-allocation-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
  border-radius: 100px;
  transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Asset Breakdown */
.calc-breakdown {
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.calc-breakdown-title {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.calc-breakdown-bar {
  display: flex;
  height: 12px;
  border-radius: 100px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
}

.calc-breakdown-segment {
  height: 100%;
  transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  min-width: 0;
}

.calc-breakdown-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.calc-legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.calc-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  flex-shrink: 0;
}

/* --- Projection Section --- */
.calc-projection {
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--border-subtle);
}

.calc-projection-header {
  text-align: center;
  margin-bottom: 36px;
}

.calc-projection-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 800;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.calc-projection-title svg {
  color: var(--accent-orange);
}

.calc-projection-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
}

.calc-projection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.calc-proj-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: border-color 0.3s, transform 0.3s;
}

.calc-proj-card:hover {
  border-color: var(--border-color);
  transform: translateY(-3px);
}

.calc-proj-target {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.calc-proj-price {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.calc-proj-btc-value {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.calc-proj-net-worth {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.calc-proj-change {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.78rem;
  background: rgba(74, 222, 128, 0.1);
  color: #4ade80;
}

.calc-proj-change .arrow {
  font-size: 0.7rem;
}

/* Empty projection prompt */
.calc-proj-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 24px;
  background: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
}

.calc-proj-empty-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: 0.4;
  font-family: var(--font-display);
  font-weight: 800;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.calc-proj-empty p {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 400px;
  margin: 0 auto;
  line-height: 1.6;
}

.calc-projection-disclaimer {
  text-align: center;
  margin-top: 24px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
}

/* --- Responsive --- */
@media (max-width: 968px) {
  .calc-hero {
    padding-top: 138px;
  }

  .calc-layout {
    grid-template-columns: 1fr;
  }

  .calc-results {
    position: static;
  }

  .calc-projection-grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }
}

@media (max-width: 768px) {
  .calc-hero {
    padding-top: 120px;
  }

  .calc-hero-title {
    font-size: 1.8rem;
  }

  .calc-hero-subtitle {
    font-size: 0.95rem;
  }

  .calc-net-worth-value {
    font-size: 1.8rem;
  }

  .calc-results-inner {
    padding: 20px;
  }

  .calc-proj-card {
    padding: 18px 14px;
  }

  .calc-proj-price {
    font-size: 1rem;
  }

  .calc-proj-net-worth {
    font-size: 1.1rem;
  }
}

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

  .calc-category-name {
    font-size: 0.88rem;
  }

  .calc-category-total {
    font-size: 0.82rem;
  }
}