:root {
  /* Common Tokens */
  --jsl-radius-xl: 32px;
  --jsl-radius-lg: 20px;
  --jsl-radius-md: 12px;
  --jsl-transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --jsl-shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.jsl-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1.5rem;
  min-height: 400px;
}

/* Light Theme */
.theme-light .jsl-container,
.jsl-container:not(.theme-dark) {
  --jsl-card-bg: #fff;
  --jsl-text-main: #0f172a;
  --jsl-text-muted: #64748b;
  --jsl-accent: #2563eb;
  --jsl-accent-soft: #eff6ff;
  --jsl-input-bg: #f8fafc;
  --jsl-border: #e2e8f0;
}

/* Dark Theme */
.theme-dark .jsl-container {
  --jsl-card-bg: #1e293b;
  --jsl-text-main: #f8fafc;
  --jsl-text-muted: #94a3b8;
  --jsl-accent: #10b981;
  --jsl-accent-soft: rgba(16, 185, 129, 0.1);
  --jsl-input-bg: rgba(15, 23, 42, 0.4);
  --jsl-border: rgba(255, 255, 255, 0.1);
  --jsl-glass-blur: blur(16px);
}

.jsl-card {
  width: 100%;
  max-width: 900px;
  background: var(--jsl-card-bg);
  backdrop-filter: var(--jsl-glass-blur);
  border: 1px solid var(--jsl-border);
  border-radius: var(--jsl-radius-xl);
  box-shadow: var(--jsl-shadow-xl);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
}

@media (max-width: 768px) {
  .jsl-card {
    grid-template-columns: 1fr;
  }
}

.jsl-content-panel {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.jsl-visual-panel {
  padding: 2.5rem;
  background: var(--jsl-accent-soft);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  border-left: 1px solid var(--jsl-border);
}

@media (max-width: 768px) {
  .jsl-visual-panel {
    border-left: none;
    border-top: 1px solid var(--jsl-border);
  }
}

.jsl-grid-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

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

.jsl-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.jsl-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--jsl-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* High-end Styled Input & Select */
.jsl-input, .jsl-select {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--jsl-input-bg);
  border: 2px solid transparent;
  border-radius: var(--jsl-radius-md);
  color: var(--jsl-text-main);
  font-size: 1rem;
  font-weight: 600;
  transition: var(--jsl-transition);
  outline: none;
}

.jsl-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='Length 19 9l-7 7-7-7' /%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1.25rem;
  padding-right: 3rem;
}

.jsl-input:focus, .jsl-select:focus {
  border-color: var(--jsl-accent);
  background: var(--jsl-card-bg);
}

/* Visualization */
.jsl-tank {
  width: 140px;
  height: 200px;
  border: 3px solid var(--jsl-text-main);
  border-top: none;
  border-radius: 0 0 32px 32px;
  position: relative;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.05);
}

.jsl-liquid {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  transition: height 1s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.jsl-liquid-water {
  background: #3b82f6;
  opacity: 0.7;
}

.jsl-liquid-alcohol {
  background: var(--jsl-accent);
}

.jsl-stats-compact {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

.jsl-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.75rem;
  border-bottom: 1px dashed var(--jsl-border);
}

.jsl-stat-l {
  font-size: 0.875rem;
  color: var(--jsl-text-muted);
  font-weight: 500;
}

.jsl-stat-v {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--jsl-accent);
}

/* Toggle repositioned inside card */
.jsl-card-header {
  grid-column: 1 / -1;
  padding: 1rem 2.5rem;
  background: rgba(0,0,0,0.03);
  display: flex;
  justify-content: flex-end;
  border-bottom: 1px solid var(--jsl-border);
}

.jsl-mini-toggle {
  display: flex;
  background: var(--jsl-input-bg);
  padding: 0.25rem;
  border-radius: 99px;
  gap: 0.25rem;
}

.jsl-mini-btn {
  padding: 0.4rem 0.8rem;
  border-radius: 99px;
  border: none;
  background: transparent;
  color: var(--jsl-text-muted);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 700;
  transition: var(--jsl-transition);
}

.jsl-mini-btn.active {
  background: var(--jsl-accent);
  color: white;
}