:root {
  color-scheme: light;
  --navy: #083b5c;
  --navy-deep: #052b44;
  --teal: #0d8f91;
  --teal-dark: #087173;
  --teal-soft: #e8f7f6;
  --ink: #172b3a;
  --muted: #5d6e79;
  --line: #c9d7dd;
  --surface: #ffffff;
  --page: #f4f8f8;
  --warning: #7c4a08;
  --warning-soft: #fff2d8;
  --danger: #a52a2a;
  --danger-soft: #fff0f0;
  --shadow: 0 16px 40px rgba(8, 59, 92, 0.09);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--page); }

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  line-height: 1.5;
}

button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  padding: .75rem 1rem;
  color: white;
  background: var(--navy);
  border-radius: .5rem;
}
.skip-link:focus { top: 1rem; }

.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.header-inner {
  width: min(100% - 2rem, 960px);
  min-width: 0;
  margin: 0 auto;
  padding: .8rem 0;
  display: flex;
  gap: .75rem;
  align-items: center;
  justify-content: space-between;
}
.brand { color: var(--navy); text-decoration: none; display: inline-flex; align-items: center; gap: .65rem; min-width: 0; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 2.45rem;
  height: 2.45rem;
  flex: 0 0 auto;
  border-radius: .8rem 1.2rem .8rem .35rem;
  color: white;
  background: linear-gradient(135deg, var(--navy), var(--teal));
  font-weight: 900;
  font-size: 1.25rem;
}
.brand strong, .brand small { display: block; }
.brand strong { letter-spacing: .05em; }
.brand small { color: var(--muted); font-size: .75rem; white-space: nowrap; }
.header-info { width: auto; flex: 0 0 auto; }

.local-strip {
  padding: .55rem 1rem;
  color: var(--navy-deep);
  background: #dff2f1;
  border-bottom: 1px solid #aad7d6;
  text-align: center;
  font-size: .875rem;
  font-weight: 650;
}

main {
  width: min(100% - 2rem, 960px);
  min-width: 0;
  min-height: calc(100vh - 13rem);
  margin: 0 auto;
  padding: 2rem 0 3rem;
}
main:focus { outline: none; }

.eyebrow {
  margin: 0 0 .35rem;
  color: var(--teal-dark);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
h1, h2, h3 { margin-top: 0; color: var(--navy-deep); line-height: 1.15; overflow-wrap: anywhere; }
h1 { margin-bottom: .65rem; font-size: clamp(2rem, 7vw, 3.2rem); letter-spacing: -.035em; }
h2 { font-size: clamp(1.35rem, 4vw, 2rem); }
h3 { font-size: 1.05rem; }
p { overflow-wrap: anywhere; }
.lead { max-width: 44rem; margin: 0 0 1.5rem; color: var(--muted); font-size: 1.02rem; }
.muted { color: var(--muted); }
.fine { color: var(--muted); font-size: .86rem; }
.stack > * + * { margin-top: 1rem; }
.stack-small > * + * { margin-top: .6rem; }

.button {
  min-height: 44px;
  width: 100%;
  padding: .72rem 1rem;
  border: 2px solid var(--navy);
  border-radius: .7rem;
  color: white;
  background: var(--navy);
  font-weight: 750;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
}
.button:hover { background: var(--navy-deep); border-color: var(--navy-deep); }
.button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible, a:focus-visible {
  outline: 3px solid #58d6d2;
  outline-offset: 3px;
}
.button-secondary { color: var(--navy); background: white; }
.button-secondary:hover { color: white; }
.button-quiet { color: var(--navy); background: transparent; border-color: transparent; }
.button-quiet:hover { color: var(--navy-deep); background: var(--teal-soft); border-color: var(--teal-soft); }
.button-danger { color: var(--danger); background: white; border-color: #d99393; }
.button-danger:hover { color: white; background: var(--danger); border-color: var(--danger); }
.button-inline { width: auto; }
.link-button {
  min-height: 44px;
  padding: .55rem .25rem;
  border: 0;
  color: var(--teal-dark);
  background: transparent;
  font-weight: 750;
  text-decoration: underline;
  text-underline-offset: .2em;
  cursor: pointer;
}
.actions { display: grid; gap: .65rem; margin-top: 1.25rem; }
.actions-inline { display: flex; flex-wrap: wrap; gap: .4rem .85rem; align-items: center; }

.empty-state, .panel, .recipe-card, .result-card, .component-card, .preview-card, details.help {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.empty-state { padding: 1.35rem; max-width: 40rem; }
.empty-state p { margin: .25rem 0 1.1rem; color: var(--muted); }
.library-header { margin-bottom: 1.5rem; }
.library-grid { display: grid; gap: 1rem; }
.recipe-card { padding: 1.15rem; }
.recipe-card h2 { margin-bottom: .35rem; font-size: 1.25rem; }
.recipe-card .status { margin: .55rem 0; font-weight: 750; }
.status-complete { color: var(--teal-dark); }
.status-incomplete { color: var(--warning); }
.card-actions { display: flex; flex-wrap: wrap; gap: .25rem .75rem; margin-top: .8rem; border-top: 1px solid var(--line); padding-top: .65rem; }

.stepper { display: flex; gap: .5rem; margin: 1rem 0 1.5rem; }
.step {
  flex: 1;
  padding: .5rem;
  border-radius: 999px;
  color: var(--muted);
  background: #e6edef;
  font-size: .78rem;
  font-weight: 750;
  text-align: center;
}
.step[aria-current="step"] { color: white; background: var(--navy); }
.panel { padding: 1.2rem; }
.field { min-width: 0; }
.field + .field { margin-top: 1rem; }
.field label, .field legend { display: block; margin-bottom: .35rem; font-weight: 750; color: var(--navy-deep); }
.field small { display: block; margin-top: .35rem; color: var(--muted); }
input, select, textarea {
  width: 100%;
  min-width: 0;
  min-height: 46px;
  padding: .72rem .8rem;
  border: 1.5px solid #9fb7c2;
  border-radius: .65rem;
  color: var(--ink);
  background: white;
}
textarea { min-height: 6rem; resize: vertical; }
fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
.quantity-unit { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(6.5rem, .8fr); gap: .6rem; }
.checkbox-row { display: flex; gap: .65rem; align-items: flex-start; margin-top: .7rem; }
.checkbox-row input { width: 1.25rem; height: 1.25rem; min-height: auto; flex: 0 0 auto; margin-top: .1rem; }
.checkbox-row label { margin: 0; font-weight: 650; }
.field-error { margin: .4rem 0 0; color: var(--danger); font-size: .9rem; font-weight: 650; }
.field-note { padding: .7rem .8rem; border-radius: .65rem; background: var(--teal-soft); color: var(--navy-deep); }

.workspace-grid { display: grid; gap: 1rem; align-items: start; }
.component-list { display: grid; gap: .75rem; }
.component-card { padding: .9rem; box-shadow: none; }
.component-card h3 { margin-bottom: .25rem; }
.component-card p { margin: .2rem 0; color: var(--muted); }
.component-card .component-cost { color: var(--teal-dark); font-weight: 750; }
.component-card .component-error { color: var(--warning); font-weight: 700; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: .75rem; margin-bottom: .8rem; }
.section-head h2 { margin: 0; }
details.help { margin-top: 1rem; padding: .85rem 1rem; box-shadow: none; }
details.help summary { min-height: 44px; display: flex; align-items: center; color: var(--teal-dark); font-weight: 750; cursor: pointer; }
details.help p { margin: .5rem 0; color: var(--muted); }

.preview-card, .result-card { padding: 1.15rem; }
.preview-card { background: var(--navy-deep); color: white; }
.preview-card h2, .preview-card h3 { color: white; }
.preview-card .eyebrow { color: #80ebe6; }
.preview-card .muted { color: #d0e0e6; }
.money { margin: .2rem 0; font-size: clamp(1.8rem, 8vw, 2.8rem); font-weight: 850; letter-spacing: -.03em; overflow-wrap: anywhere; }
.metric-grid { display: grid; gap: .75rem; margin: 1rem 0; }
.metric {
  min-width: 0;
  padding: .9rem;
  border: 1px solid var(--line);
  border-radius: .75rem;
  background: #f8fbfb;
}
.metric span { display: block; color: var(--muted); font-size: .86rem; }
.metric strong { display: block; margin-top: .2rem; color: var(--navy-deep); font-size: 1.35rem; overflow-wrap: anywhere; }
.result-complete { border-top: .4rem solid var(--teal); }
.result-incomplete { border-top: .4rem solid #d28b1f; }
.missing-list { margin: .75rem 0; padding: 0; list-style: none; }
.missing-list li { margin-top: .55rem; padding: .75rem; border-radius: .7rem; background: var(--warning-soft); }
.missing-list strong, .missing-list span { display: block; }
.scope-box { margin-top: 1rem; padding: 1rem; border-radius: .8rem; background: var(--teal-soft); }
.scope-box p { margin: .35rem 0; }
.comparison { margin: 1rem 0; padding: 1rem; border-left: 4px solid var(--teal); background: #f2fbfa; }
.comparison p { margin: .3rem 0; }

dialog {
  width: min(100% - 1.5rem, 34rem);
  max-height: min(90vh, 46rem);
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: 1rem;
  color: var(--ink);
  background: white;
  box-shadow: 0 24px 80px rgba(4, 28, 44, .32);
  overflow: auto;
}
dialog::backdrop { background: rgba(3, 25, 40, .7); }
.modal-inner { padding: 1.25rem; }
.modal-inner h2 { margin-bottom: .55rem; }
.modal-inner > p { color: var(--muted); }
.privacy-note { padding: 1rem; border-radius: .8rem; background: var(--teal-soft); color: var(--navy-deep); }

.toast {
  position: fixed;
  z-index: 90;
  left: 50%;
  bottom: 1rem;
  width: min(calc(100% - 2rem), 32rem);
  transform: translate(-50%, 150%);
  padding: .85rem 1rem;
  border-radius: .7rem;
  color: white;
  background: var(--navy-deep);
  box-shadow: var(--shadow);
  transition: transform .2s ease;
}
.toast.visible { transform: translate(-50%, 0); }
.site-footer { padding: 1.5rem 1rem 2rem; color: var(--muted); text-align: center; font-size: .82rem; }
.noscript { margin: 1rem; padding: 1rem; border: 2px solid var(--danger); background: var(--danger-soft); }

@media (min-width: 42rem) {
  .actions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .library-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .panel, .preview-card, .result-card { padding: 1.5rem; }
}

@media (min-width: 52rem) {
  .workspace-grid { grid-template-columns: minmax(0, 1.45fr) minmax(18rem, .85fr); }
  .preview-card { position: sticky; top: 1rem; }
  .library-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 31rem) {
  .header-inner { align-items: flex-start; }
  .header-info { max-width: 9.5rem; font-size: .78rem; padding: .45rem; }
  .brand small { white-space: normal; }
  .quantity-unit { grid-template-columns: minmax(0, 1fr); }
  main { width: min(100% - 1rem, 960px); padding-top: 1.25rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}