/*
  Purpose: Component styles for tabs, inputs, buttons, cards, badges, upsell.
  Dependencies: base.css variables, animations.css keyframes
*/
.exchange-tabs {
  display: flex;
  gap: 10px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 18px;
}

.tab {
  background: transparent;
  border: none;
  color: var(--dim);
  padding: 14px 12px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: 0.15s ease;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  min-width: 140px;
}

.tab.active {
  color: var(--white);
  border-bottom-color: var(--green);
}

.seg-row {
  display: flex;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.seg-control {
  display: flex;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.seg-btn {
  background: transparent;
  border: none;
  color: var(--dim);
  padding: 10px 16px;
  cursor: pointer;
  transition: 0.15s ease;
}

.seg-btn.active.long {
  background: rgba(0, 229, 160, 0.15);
  color: var(--green);
}

.seg-btn.active.short {
  background: rgba(255, 61, 90, 0.15);
  color: var(--red);
}

.seg-btn.active.isolated {
  background: rgba(77, 158, 255, 0.15);
  color: var(--blue);
}

.seg-btn.active.cross {
  background: rgba(255, 201, 64, 0.12);
  color: var(--yellow);
}

.input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
  margin-bottom: 18px;
  justify-items: start;
}

.input-field {
  display: grid;
  gap: 6px;
  font-size: 12px;
  color: var(--dim);
  max-width: 200px;
  width: 100%;
}

.input-field input {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--white);
  padding: 12px 16px;
  height: 48px;
  transition: 0.15s ease;
}

.input-field input:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.12);
}

.input-field input.invalid {
  border-color: var(--red);
  animation: shake 0.4s ease;
}

.fee-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px;
  background: rgba(19, 22, 32, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 18px;
}

.fee-label {
  display: grid;
  gap: 4px;
}

.fee-inputs {
  display: flex;
  gap: 10px;
}

.fee-inputs label {
  display: grid;
  gap: 4px;
  font-size: 12px;
  color: var(--dim);
}

.fee-inputs input {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--white);
  padding: 8px 10px;
  width: 110px;
}

.calc-btn {
  width: 100%;
  border: none;
  border-radius: 12px;
  background: var(--green);
  color: #020202;
  padding: 14px;
  font-weight: 700;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: 0.15s ease;
}

.calc-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  transform: translateX(-120%);
}

.calc-btn:hover::before {
  animation: shimmer 1.2s ease;
}

.pill {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--bg3);
  border: 1px solid var(--border);
  font-size: 12px;
}

.formula-toggle {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--white);
  padding: 12px;
  border-radius: 10px;
  cursor: pointer;
}

.formula-body {
  margin-top: 16px;
  display: none;
  gap: 16px;
}

.formula-body.visible {
  display: grid;
}

.formula-block {
  background: rgba(10, 12, 18, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
}

.formula-block pre {
  white-space: pre-wrap;
  font-size: 12px;
  color: var(--dim);
  margin-top: 8px;
}

.upsell-card {
  display: none;
  margin-top: 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  background: radial-gradient(circle at left, rgba(0, 229, 160, 0.15), transparent 55%), var(--bg2);
  gap: 20px;
  align-items: center;
  grid-template-columns: 1.2fr 0.6fr;
}

.upsell-card.visible {
  display: grid;
}

.upsell-title {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 1px;
}

@media (max-width: 900px) {
  .exchange-tabs {
    flex-wrap: wrap;
  }

  .tab {
    flex: 1 1 45%;
    min-width: 0;
    text-align: center;
  }

  .seg-row {
    flex-direction: column;
  }

  .seg-control {
    width: 100%;
  }

  .seg-btn {
    flex: 1 1 auto;
    text-align: center;
  }

  .input-grid {
    grid-template-columns: 1fr;
  }

  .input-field {
    max-width: none;
  }

  .fee-row {
    flex-direction: column;
    align-items: stretch;
  }

  .fee-inputs {
    width: 100%;
  }

  .fee-inputs label {
    flex: 1 1 50%;
  }

  .fee-inputs input {
    width: 100%;
  }
}

@media (max-width: 600px) {
  .tab {
    padding: 12px 8px;
    font-size: 12px;
  }

  .seg-btn {
    padding: 10px 12px;
  }

  .calc-btn {
    padding: 16px;
  }
}

@media (min-width: 1200px) {
  .upsell-card.visible {
    position: fixed;
    top: 220px;
    right: 40px;
    width: 320px;
    margin-top: 0;
    grid-template-columns: 1fr;
    z-index: 3;
  }

  .upsell-right {
    justify-items: start;
  }
}

.upsell-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.upsell-right {
  display: grid;
  gap: 10px;
  justify-items: end;
}

.upsell-right .price {
  font-size: 28px;
  font-weight: 700;
}

.upsell-btn {
  background: var(--green);
  color: #020202;
  padding: 10px 16px;
  border-radius: 10px;
  font-weight: 700;
}

@media (max-width: 900px) {
  .input-grid {
    grid-template-columns: 1fr;
  }

  .fee-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .fee-inputs {
    width: 100%;
    flex-direction: column;
  }

  .fee-inputs input {
    width: 100%;
  }
}

@media (max-width: 600px) {
  .upsell-card {
    grid-template-columns: 1fr;
  }

  .upsell-right {
    justify-items: start;
  }
}