/* Unit Converter Modal Styles */
:root {
  --converter-dark-bg: #141414;
  --converter-dark-secondary: #1e1e1e;
  --converter-dark-tertiary: #2a2a2a;
  --converter-accent: #4CAF50;
  --converter-accent-hover: #388E3C;
  --converter-text: #ffffff;
  --converter-text-secondary: #aaaaaa;
  --converter-border: #333333;
  --converter-shadow: rgba(0, 0, 0, 0.5);
}

/* Unit Converter Button */
.unit-converter-button {
  background: linear-gradient(135deg, #96009b, #96009b);
  color: white !important;
  border: none;
  border-radius: 12px;
  padding: 8px 15px;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 4px 0 #610064, 0 6px 15px rgba(0, 0, 0, 0.2);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-decoration: none;
  display: inline-block;
  text-align: center;
  margin: 0 5px;
}

.unit-converter-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 0 #610064, 0 8px 20px rgba(0, 0, 0, 0.3);
}

.unit-converter-button:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 #610064, 0 3px 10px rgba(0, 0, 0, 0.2);
}

/* Unit Converter Modal */
.unit-converter-modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.7);
  animation: fadeIn 0.3s ease-in-out;
}

.unit-converter-modal.visible {
  display: flex;
  justify-content: center;
  align-items: center;
}

.unit-converter-modal.closing {
  animation: fadeOut 0.3s ease-in-out;
}

.unit-converter-content {
  background-color: var(--converter-dark-bg);
  margin: 0;
  padding: 20px;
  border: none;
  width: 94%;
  max-width: 900px;
  border-radius: 26px;
  box-shadow: 0 4px 8px var(--converter-shadow);
  color: var(--converter-text);
  animation: popOut 0.4s ease-out;
  box-sizing: border-box;
  max-height: 85vh;
  overflow-y: hidden;
}

.unit-converter-content.animating {
  overflow: hidden;
}

.unit-converter-modal.closing .unit-converter-content {
  animation: popIn 0.3s ease-in;
}

.unit-converter-modal.visible .unit-converter-content {
  overflow-y: auto;
}

.unit-converter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.unit-converter-title {
  font-size: 22px;
  font-weight: bold;
  color: var(--converter-text);
  margin: 0;
}

.unit-converter-close {
  color: var(--converter-text-secondary);
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.2s ease;
}

.unit-converter-close:hover {
  color: var(--converter-text);
}

.unit-converter-body {
  display: flex;
  flex-direction: column;
  gap: 15px;
  width: 100%;
}

/* Converter Controls */
.converter-controls {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

/* Tabs for different converter types */
.converter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
  justify-content: center;
  max-width: 100%;
}

.converter-tab-btn {
  background: var(--converter-dark-tertiary);
  color: var(--converter-text);
  border: none;
  border-radius: 16px;
  padding: 8px 10px;
  font-size: 12px;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 4px 0 #1a1a1a, 0 6px 15px rgba(0, 0, 0, 0.2);
  transition: all 0.2s ease;
  min-width: 65px;
  text-align: center;
  white-space: nowrap;
  flex: 0 1 auto;
  margin: 0 2px 8px 2px;
}

.converter-tab-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 0 #1a1a1a, 0 8px 20px rgba(0, 0, 0, 0.3);
}

.converter-tab-btn.active {
  background: var(--converter-accent);
  box-shadow: 0 4px 0 var(--converter-accent-hover), 0 6px 15px rgba(0, 0, 0, 0.2);
}

/* Converter pages */
.converter-pages {
  display: flex;
  flex-direction: column;
  gap: 15px;
  width: 100%;
}

.converter-page {
  display: none;
}

.converter-page.active {
  display: block;
}

/* Input group */
.converter-input-group {
  display: flex;
  flex-direction: row;
  gap: 20px;
  width: 100%;
  box-sizing: border-box;
  align-items: center;
  justify-content: space-between;
}

/* Each input container holds the input field and the unit selector below it */
.converter-input-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-sizing: border-box;
  min-width: 0;
  width: 100%;
}

.converter-input-container label {
  font-size: 14px;
  color: var(--converter-text-secondary);
  margin-bottom: 5px;
}

/* Input above, select below layout */
.converter-input-with-select {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  box-sizing: border-box;
}

/* Large input field for values */
.converter-input {
  width: 100%;
  padding: 0 15px;
  border: 1px solid var(--converter-border);
  border-radius: 12px;
  background-color: var(--converter-dark-secondary);
  color: var(--converter-text);
  font-size: 18px;
  line-height: 46px;
  transition: border-color 0.3s ease, color 0.2s ease;
  box-sizing: border-box;
  height: 46px;
  text-align: center;
  flex: 1;
}

.converter-input:focus {
  outline: none;
  border-color: var(--converter-accent);
}

/* Integrated stepper wrapper */
.converter-input-wrapper {
  position: relative;
  width: 100%;
  display: flex;
  align-items: stretch;
  border: 1px solid var(--converter-border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--converter-dark-secondary);
  height: 46px;
}

.converter-input-wrapper:focus-within {
  border-color: #ffffff;
  box-shadow: 0 0 0 0.1px rgba(255, 255, 255, 0.5);
}

.converter-input-wrapper .converter-input {
  border: none;
  border-radius: 0;
  background: transparent;
  padding-right: 12px;
}

.converter-input-wrapper .converter-input:focus {
  border: none;
  outline: none;
}

.converter-stepper-panel {
  width: 52px;
  display: flex;
  flex-direction: column;
  border-left: 1px solid #2a2a2a;
  background: #1a1a1a;
  height: 46px;
}

.converter-stepper-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--converter-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease, transform 0.08s ease;
  padding: 0;
}

.converter-stepper-btn:first-child {
  border-bottom: 1px solid #2a2a2a;
}

.converter-stepper-btn:last-child {
}

.converter-stepper-btn:hover {
  background: #1f1f1f;
  border-color: #3a3a3a;
}

.converter-stepper-btn:active {
  transform: translateY(1px);
}

.converter-stepper-btn svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

/* Hide native steppers */
.converter-input[type="number"] {
  -moz-appearance: textfield;
}
.converter-input[type="number"]::-webkit-inner-spin-button,
.converter-input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Unit selector below input */
.converter-select {
  width: 100%;
  padding: 10px 15px;
  border: 1px solid var(--converter-border);
  border-radius: 12px;
  background-color: var(--converter-dark-secondary);
  color: var(--converter-text);
  font-size: 14px;
  transition: border-color 0.3s ease;
  box-sizing: border-box;
  height: 40px;
  text-overflow: ellipsis;
  appearance: none;
  padding-right: 30px;
}

.converter-select:focus {
  outline: none;
  border-color: var(--converter-accent);
}

.converter-select-hidden {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

.converter-dropdown {
  position: relative;
  width: 100%;
}

.converter-dropdown-toggle {
  width: 100%;
  background: #111111;
  border: 1px solid #2a2a2a;
  border-radius: 12px;
  color: var(--converter-text);
  font-size: 14px;
  padding: 10px 14px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.converter-dropdown-toggle:hover {
  background: #1a1a1a;
  border-color: #3a3a3a;
}

.converter-dropdown-toggle .converter-chevron {
  display: inline-flex;
  width: 18px;
  height: 18px;
  align-items: center;
  justify-content: center;
  color: #888;
  transition: transform 0.18s ease, color 0.18s ease;
}

.converter-dropdown.open .converter-dropdown-toggle .converter-chevron {
  transform: rotate(180deg);
  color: #bbb;
}

.converter-dropdown-options {
  position: fixed;
  top: 0;
  left: 0;
  background: #111111;
  border: 1px solid #2a2a2a;
  border-radius: 14px;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px) scale(0.98);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
  z-index: 9999;
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 6px;
}

.converter-dropdown.open .converter-dropdown-options {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.converter-dropdown-option {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--converter-text);
  text-align: left;
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.16s ease, color 0.16s ease;
  margin: 0;
}

.converter-dropdown-option:hover {
  background: #1c1c1c;
  color: #ffffff;
}

.converter-dropdown-option.active {
  background: #1f1f1f;
  border: 1px solid #3a3a3a;
}

/* Swap button */
.swap-units-btn {
  align-self: center;
  background-color: var(--converter-dark-tertiary);
  border: none;
  border-radius: 50%;
  min-width: 40px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.3s ease;
  padding: 0;
  margin: 0;
  flex-shrink: 0;
}

.swap-units-btn svg {
  width: 20px;
  height: 20px;
  fill: var(--converter-text);
}

.swap-units-btn:hover {
  background-color: var(--converter-accent);
  transform: scale(1.1);
}

/* Responsive adjustments */
@media screen and (max-width: 600px) {
  .converter-input-group {
    flex-direction: column;
    gap: 15px;
  }
  
  .converter-input-container {
    max-width: 100%;
  }
  
  .swap-units-btn {
    margin: 0;
    transform: rotate(90deg);
  }
  
  .swap-units-btn:hover {
    transform: rotate(90deg) scale(1.1);
  }
}

/* Common unit info */
.common-units-container {
  margin-top: 15px;
  background-color: var(--converter-dark-secondary);
  border-radius: 12px;
  padding: 15px;
  box-sizing: border-box;
  width: 100%;
}

.common-units-title {
  font-size: 16px;
  margin-bottom: 10px;
  color: var(--converter-text-secondary);
}

.common-units-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
  gap: 10px;
}

.common-unit-item {
  background-color: var(--converter-dark-tertiary);
  border-radius: 8px;
  padding: 10px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.common-unit-item:hover {
  background-color: var(--converter-accent);
}

.common-unit-value {
  font-weight: bold;
  font-size: 14px;
  margin-bottom: 4px;
}

.common-unit-name {
  font-size: 12px;
  color: var(--converter-text-secondary);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

@keyframes popOut {
  0% {
    opacity: 0;
    transform: scale(0.8) translateY(20px);
  }
  80% {
    transform: scale(1.02) translateY(-5px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes popIn {
  0% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(0.8);
  }
}

/* Responsive adjustments */
@media screen and (max-width: 600px) {
  .unit-converter-content {
    width: 95%;
    margin: 5% auto;
    padding: 15px;
  }
  
  .converter-tabs {
    overflow-x: auto;
    padding-bottom: 5px;
    justify-content: flex-start;
    flex-wrap: wrap;
  }
  
  .converter-tab-btn {
    font-size: 11px;
    padding: 6px 8px;
    min-width: 60px;
  }
  
  .converter-input-with-select {
    flex-direction: column;
    gap: 5px;
    width: 100%;
  }
  
  .converter-input {
    flex: 0 0 45px; /* Fixed height, adjust width on mobile */
    width: 100%;
    min-width: unset;
    max-width: 100%;
    min-height: 45px;
  }
  
  .converter-select {
    flex: 0 0 45px; /* Fixed height, adjust width on mobile */
    width: 100%;
    min-width: unset;
    max-width: 100%;
    min-height: 45px;
  }
  
  .common-units-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}