/* ============================================
   Bitcoin DCA Calculator - Styles
   ============================================ */

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

.dca-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;
}

.dca-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;
}

.dca-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;
}

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

.dca-layout {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* --- Cards --- */
.dca-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  animation: fadeInUp 0.6s ease both;
}

.dca-card:nth-child(2) { animation-delay: 0.1s; }
.dca-card:nth-child(3) { animation-delay: 0.2s; }

.dca-card-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.dca-card-title svg {
  color: var(--accent-orange);
}

/* --- Form Grid --- */
.dca-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.dca-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.dca-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.dca-input-prefix {
  position: absolute;
  left: 14px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  pointer-events: none;
  z-index: 1;
}

.dca-input-wrap input[type="number"],
.dca-input-wrap input[type="month"],
.dca-input-wrap select {
  width: 100%;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font-main);
  transition: border-color 0.3s, box-shadow 0.3s;
  -moz-appearance: textfield;
}

.dca-input-wrap input[type="number"] {
  padding-left: 32px;
}

.dca-input-wrap input::-webkit-outer-spin-button,
.dca-input-wrap input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.dca-input-wrap input:focus,
.dca-input-wrap select:focus {
  outline: none;
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 3px rgba(247, 147, 26, 0.15);
}

.dca-input-wrap select {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' stroke='%238b949e' stroke-width='2' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3 4.5l3 3 3-3'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.dca-input-wrap select option {
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* --- Calculate Button --- */
.dca-btn {
  width: 100%;
  padding: 14px 24px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-gold));
  color: #000;
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-display);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  letter-spacing: 0.5px;
}

.dca-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(247, 147, 26, 0.3);
}

.dca-btn:active {
  transform: translateY(0);
}

/* --- Results Grid --- */
.dca-results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.dca-stat {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}

.dca-stat-highlight {
  border-color: rgba(247, 147, 26, 0.3);
}

.dca-stat-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.dca-stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
}

.dca-stat-value.green { color: #3fb950; }
.dca-stat-value.red { color: #f85149; }
.dca-stat-value.btc-accent { color: var(--accent-orange); }

.dca-stat-highlight .dca-stat-value {
  color: var(--accent-orange);
}

/* --- Results Bottom Row --- */
.dca-results-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.dca-stat-inline {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dca-stat-inline .dca-stat-label {
  margin-bottom: 0;
  font-size: 0.8rem;
}

.dca-stat-inline .dca-stat-value {
  font-size: 1.1rem;
}

/* --- Chart --- */
.dca-chart-wrap {
  position: relative;
  height: 360px;
}

/* --- Disclaimer --- */
.dca-disclaimer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 32px;
  opacity: 0.7;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .dca-hero {
    padding: 140px 16px 32px;
  }

  .dca-card {
    padding: 20px 18px;
  }

  .dca-form-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .dca-results-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .dca-results-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .dca-stat-value {
    font-size: 1.1rem;
  }

  .dca-chart-wrap {
    height: 280px;
  }
}

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

  .dca-stat-inline {
    flex-direction: column;
    text-align: center;
    gap: 6px;
  }
}