.atron-tools {
  --atron-accent: #16877f;
  --atron-accent-contrast: #fff;
  --atron-surface: #fff;
  --atron-surface-alt: #f4f7f7;
  --atron-text: inherit;
  --atron-muted: #66777b;
  --atron-border: #d4dddd;
  --atron-warning: #a66300;
  --atron-error: #b6372e;
  --atron-radius: .35rem;
  --atron-shadow: 0 1rem 2.5rem rgb(0 0 0 / .08);
  color: var(--atron-text);
  font: inherit;
  line-height: 1.45;
}
.atron-tools, .atron-tools * { box-sizing: border-box; }
.atron-tools__nav { display: flex; gap: .5rem; margin: 0 0 1rem; padding: .35rem; border: 1px solid var(--atron-border); border-radius: var(--atron-radius); background: var(--atron-surface-alt); }
.atron-tools__tab { flex: 1; cursor: pointer; padding: .8rem 1rem; border: 0; border-radius: calc(var(--atron-radius) - .1rem); background: transparent; color: var(--atron-muted); font: inherit; font-weight: 750; }
.atron-tools__tab:hover { color: var(--atron-accent); }
.atron-tools__tab[aria-selected="true"] { background: var(--atron-accent); color: var(--atron-accent-contrast); box-shadow: 0 .3rem 1rem rgb(0 0 0 / .1); }
.atron-tools__panel[hidden] { display: none !important; }
.atron-tools .atron-calculator { --atron-accent: inherit; --atron-accent-contrast: inherit; --atron-surface: inherit; --atron-surface-alt: inherit; --atron-text: inherit; --atron-muted: inherit; --atron-border: inherit; --atron-warning: inherit; --atron-error: inherit; --atron-radius: inherit; --atron-shadow: inherit; }

.atron-dose { color: var(--atron-text); font: inherit; line-height: 1.45; }
.atron-dose, .atron-dose * { box-sizing: border-box; }
.atron-dose__shell { overflow: hidden; border: 1px solid var(--atron-border); border-radius: var(--atron-radius); background: var(--atron-surface); box-shadow: var(--atron-shadow); }
.atron-dose__header { display: flex; align-items: end; justify-content: space-between; gap: 1.5rem; padding: 1.5rem; border-bottom: 1px solid var(--atron-border); }
.atron-dose__eyebrow { margin: 0 0 .25rem; color: var(--atron-accent); font-size: .75rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.atron-dose__title { margin: 0; font-size: clamp(1.5rem,3vw,2.25rem); line-height: 1.1; }
.atron-dose__intro { max-width: 46rem; margin: .5rem 0 0; color: var(--atron-muted); font-size: .95rem; }
.atron-dose button, .atron-dose input, .atron-dose select { font: inherit; }
.atron-dose__reset { cursor: pointer; flex: none; padding: .65rem .9rem; border: 1px solid var(--atron-border); border-radius: var(--atron-radius); background: var(--atron-surface); color: inherit; font-weight: 650; }
.atron-dose__reset:hover { border-color: var(--atron-accent); }
.atron-dose__workspace { display: grid; grid-template-columns: minmax(0,1.55fr) minmax(19rem,.85fr); }
.atron-dose__fields { min-width: 0; }
.atron-dose__selectors { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; padding: 1rem 1.25rem; border-bottom: 1px solid var(--atron-border); background: var(--atron-surface-alt); }
.atron-dose__selector--wide { grid-column: 1/-1; }
.atron-dose__selector label { display: block; margin-bottom: .25rem; font-size: .78rem; font-weight: 750; }
.atron-dose__selector select { width: 100%; min-height: 2.5rem; padding: .4rem .55rem; border: 1px solid var(--atron-border); border-radius: var(--atron-radius); background: var(--atron-surface); color: inherit; }
.atron-dose__section-title { margin: 0; padding: .65rem 1.25rem; border-bottom: 1px solid var(--atron-border); color: var(--atron-accent); font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.atron-dose__grid { display: grid; grid-template-columns: 1fr 1fr; }
.atron-dose__field { display: grid; grid-template-columns: 2rem minmax(0,1fr) auto; gap: .7rem; align-items: center; min-height: 5.3rem; padding: .8rem 1rem; border-right: 1px solid var(--atron-border); border-bottom: 1px solid var(--atron-border); }
.atron-dose__field--no-badge { grid-template-columns: 2rem minmax(0,1fr); }
.atron-dose__field:nth-child(even) { border-right: 0; }
.atron-dose__field.is-imposed { background: color-mix(in srgb,var(--atron-accent) 7%,var(--atron-surface)); }
.atron-dose__field.is-calculated, .atron-dose__field.is-inactive { background: var(--atron-surface-alt); }
.atron-dose__field.is-inactive { opacity: .65; }
.atron-dose__index { align-self: start; color: var(--atron-muted); font-size: .68rem; font-weight: 700; }
.atron-dose__control label { display: block; margin-bottom: .25rem; font-size: .84rem; font-weight: 700; }
.atron-dose__value { display: flex; align-items: baseline; gap: .45rem; }
.atron-dose__value input { min-width: 0; width: 100%; padding: .2rem 0; border: 0; border-bottom: 2px solid transparent; outline: 0; background: transparent; color: inherit; font-family: ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size: 1.2rem; font-weight: 700; }
.atron-dose__value input:focus { border-bottom-color: var(--atron-accent); }
.atron-dose__value input[readonly] { color: var(--atron-muted); }
.atron-dose__value span { color: var(--atron-muted); font-size: .7rem; white-space: nowrap; }
.atron-dose__range { display: block; min-height: 1em; margin-top: .3rem; color: var(--atron-muted); font-size: .65rem; }
.atron-dose__badge { min-width: 5.8rem; padding: .42rem .55rem; border: 1px solid var(--atron-border); border-radius: var(--atron-radius); color: var(--atron-muted); background: var(--atron-surface); text-align: center; font-size: .7rem; font-weight: 750; }
.atron-dose__field.is-imposed .atron-dose__badge { border-color: var(--atron-accent); background: var(--atron-accent); color: var(--atron-accent-contrast); }
.atron-dose__results { display: flex; flex-direction: column; min-width: 0; padding: 1.5rem; border-left: 1px solid var(--atron-border); background: var(--atron-surface-alt); }
.atron-dose__status { display: flex; align-items: center; gap: .55rem; color: var(--atron-muted); font-size: .75rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.atron-dose__dot { width: .55rem; height: .55rem; border-radius: 50%; background: var(--atron-accent); box-shadow: 0 0 0 5px color-mix(in srgb,var(--atron-accent) 15%,transparent); }
.atron-dose__status.is-warning .atron-dose__dot { background: var(--atron-warning); box-shadow: 0 0 0 5px color-mix(in srgb,var(--atron-warning) 15%,transparent); }
.atron-dose__summary { padding: 2.2rem 0 1.25rem; border-bottom: 1px solid var(--atron-border); }
.atron-dose__summary span, .atron-dose__group-title { display: block; margin-bottom: .45rem; color: var(--atron-muted); font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.atron-dose__summary strong { display: block; color: var(--atron-accent); font-family: ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size: clamp(1.4rem,2.8vw,2.1rem); }
.atron-dose__metrics { display: grid; gap: .55rem; padding: 1.15rem 0; border-bottom: 1px solid var(--atron-border); }
.atron-dose__metric { display: flex; justify-content: space-between; gap: 1rem; font-size: .78rem; }
.atron-dose__metric span { color: var(--atron-muted); }.atron-dose__metric strong { text-align: right; font-family: ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; }
.atron-dose__range-status { margin: 1rem 0 0; padding: .75rem; border-left: 3px solid var(--atron-accent); color: var(--atron-accent); font-size: .78rem; font-weight: 700; }
.atron-dose__warnings { margin: .8rem 0 0; padding: .75rem; border-left: 3px solid var(--atron-warning); color: var(--atron-warning); font-size: .76rem; }
.atron-dose__note { margin: auto 0 0; padding-top: 1rem; color: var(--atron-muted); font-size: .68rem; }
@media(max-width:900px){.atron-dose__workspace{grid-template-columns:1fr}.atron-dose__results{min-height:22rem;border-top:1px solid var(--atron-border);border-left:0}}
@media(max-width:650px){.atron-tools__nav,.atron-dose__header{align-items:stretch;flex-direction:column}.atron-dose__selectors,.atron-dose__grid{grid-template-columns:1fr}.atron-dose__selector--wide{grid-column:auto}.atron-dose__field{border-right:0}.atron-dose__field:nth-child(even){border-right:0}}