.str {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 1.5rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: var(--shadow-base);
  box-sizing: border-box;
}

.str-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.str-h {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-base);
  margin: 0;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-base) 0%, color-mix(in srgb, var(--text-base) 70%, var(--accent)) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.str-body {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.str-inputs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.str-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.str-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-base);
  opacity: 0.5;
}

.str-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.str-input {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  background: var(--bg-page);
  color: var(--text-base);
  font-size: 0.875rem;
  font-weight: 500;
  box-sizing: border-box;
  width: 100%;
  transition: all 0.2s;
}

.str-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 15%, transparent);
  background: var(--bg-surface);
}

.str-input-unit {
  position: absolute;
  right: 0.85rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-base);
  opacity: 0.4;
  pointer-events: none;
}

select.str-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='none' stroke='%23888888' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M1 1l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2.2rem;
}

.str-visualizer-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .str-visualizer-container {
    grid-template-columns: 1.5fr 1fr;
  }
}

.str-vis-block {
  display: flex;
  flex-direction: column;
  background: color-mix(in srgb, var(--bg-page) 40%, var(--bg-surface));
  border: 1px solid var(--border-color);
  border-radius: 1.25rem;
  overflow: hidden;
  padding: 1rem;
  align-items: center;
  justify-content: center;
  min-height: 160px;
}

.str-svg {
  display: block;
  max-width: 100%;
}

.str-results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.str-result-card {
  display: flex;
  gap: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 1.25rem;
  padding: 1.25rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
  align-items: center;
}

.str-result-bespoke {
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border-color));
  background: color-mix(in srgb, var(--accent) 3%, var(--bg-surface));
  box-shadow: 0 4px 16px color-mix(in srgb, var(--accent) 5%, transparent);
}

.str-result-icon {
  width: 44px;
  height: 44px;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-base);
  background: color-mix(in srgb, var(--text-base) 8%, var(--bg-page));
  flex-shrink: 0;
}

.str-result-bespoke .str-result-icon {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--bg-surface));
}

.str-result-icon svg {
  width: 22px;
  height: 22px;
}

.str-result-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}

.str-result-title {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-base);
  opacity: 0.45;
}

.str-result-value {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-base);
  margin-top: 0.25rem;
}

.str-result-desc {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-base);
  opacity: 0.6;
  margin-top: 0.15rem;
}

.str-result-split-values {
  display: flex;
  gap: 1.5rem;
  margin-top: 0.35rem;
}

.str-split-item {
  display: flex;
  flex-direction: column;
}

.str-split-lbl {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-base);
  opacity: 0.4;
}

.str-split-val {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--text-base);
  margin-top: 0.1rem;
}