:root {
  color-scheme: light;
  --bg: #f2f6f7;
  --surface: #ffffff;
  --surface-soft: #f7fafb;
  --ink: #10252c;
  --muted: #5d737b;
  --line: #d9e4e7;
  --line-strong: #bdced3;
  --teal: #0f766e;
  --teal-dark: #0a5954;
  --teal-soft: #e3f3f0;
  --navy: #0b2a32;
  --amber: #a15c09;
  --amber-soft: #fdf2df;
  --red: #a92f24;
  --red-soft: #fbe9e7;
  --green: #176b4d;
  --green-soft: #e5f4ec;
  --blue: #2457a7;
  --shadow: 0 14px 34px rgba(13, 42, 50, 0.07);
  --radius: 18px;
  font-family:
    "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial,
    sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 88% 0%, rgba(15, 118, 110, 0.09), transparent 34rem),
    var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.site-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.4rem clamp(1.2rem, 4vw, 3.5rem) 2.8rem;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.05), transparent 55%),
    var(--navy);
  color: #f3fbfa;
}

.brand {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  max-width: 760px;
}

.brand-mark {
  flex: 0 0 auto;
  width: 3.2rem;
  height: 3.2rem;
  color: #8ce0d3;
}

.brand-mark svg {
  width: 100%;
  height: 100%;
}

.eyebrow {
  margin-bottom: 0.3rem;
  color: var(--teal);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-header .eyebrow {
  color: #8ce0d3;
}

h1 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.tagline {
  max-width: 610px;
  margin-top: 0.65rem;
  color: #b8d3d5;
  font-size: 0.98rem;
}

.header-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.7rem;
  flex: 0 0 auto;
}

.status-chip,
.customer-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  color: #d9eeee;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

.status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #d7a740;
  box-shadow: 0 0 0 3px rgba(215, 167, 64, 0.14);
}

.status-chip.online .status-dot {
  background: #66d9a6;
  box-shadow: 0 0 0 3px rgba(102, 217, 166, 0.14);
}

.status-chip.offline .status-dot {
  background: #ef8b7e;
  box-shadow: 0 0 0 3px rgba(239, 139, 126, 0.14);
}

main {
  width: min(1240px, calc(100% - 2.4rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 1.4rem;
  align-items: start;
  min-width: 0;
}

.workspace > *,
.secondary-grid > * {
  min-width: 0;
}

.panel {
  min-width: 0;
  padding: 1.45rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.panel-heading h2 {
  font-size: 1.22rem;
  letter-spacing: -0.02em;
}

.panel-count {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
}

.field {
  margin: 0 0 1.15rem;
  padding: 0;
  border: 0;
}

.field-label,
.field legend {
  display: block;
  margin-bottom: 0.45rem;
  padding: 0;
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 700;
}

.readonly-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-soft);
  font-size: 0.9rem;
  font-weight: 600;
}

.readonly-note {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 500;
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
  padding: 0.3rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-soft);
}

.segment {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.segment input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segment span {
  width: 100%;
  padding: 0.5rem 0.7rem;
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
  text-align: center;
  transition: background 140ms ease, color 140ms ease, box-shadow 140ms ease;
}

.segment input:checked + span {
  background: var(--surface);
  color: var(--teal-dark);
  box-shadow: 0 2px 7px rgba(13, 42, 50, 0.09);
}

.segment input:focus-visible + span {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

input[type="datetime-local"],
select,
input[type="number"] {
  width: 100%;
  min-height: 2.55rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  font-size: 0.88rem;
}

input:focus,
select:focus {
  border-color: var(--teal);
  outline: 2px solid rgba(15, 118, 110, 0.16);
}

input:disabled {
  background: var(--surface-soft);
  color: var(--muted);
}

#requested-at {
  margin-top: 0.6rem;
}

.hint,
.fine-print {
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.items-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.45rem;
}

.item-rows {
  display: grid;
  gap: 0.55rem;
}

.item-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 6.2rem 2.2rem;
  gap: 0.45rem;
  align-items: center;
}

.item-row .remove-item {
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1;
}

.item-row .remove-item:hover {
  border-color: #e5b5ae;
  background: var(--red-soft);
  color: var(--red);
}

.ghost {
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  color: var(--teal-dark);
  font-size: 0.78rem;
  font-weight: 700;
}

.ghost:hover {
  border-color: var(--teal);
  background: var(--teal-soft);
}

.ghost.small {
  padding: 0.3rem 0.55rem;
  font-size: 0.72rem;
}

.primary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  width: 100%;
  min-height: 2.9rem;
  margin-top: 0.2rem;
  border: 0;
  border-radius: 11px;
  background: var(--teal);
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(15, 118, 110, 0.22);
  transition: background 140ms ease, transform 140ms ease;
}

.primary:hover {
  background: var(--teal-dark);
}

.primary:active {
  transform: translateY(1px);
}

.primary:disabled {
  cursor: wait;
  opacity: 0.75;
}

.spinner {
  display: none;
  width: 1rem;
  height: 1rem;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

.primary.loading .spinner {
  display: inline-block;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.form-error {
  margin-top: 0.85rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid #ecc4be;
  border-radius: 10px;
  background: var(--red-soft);
  color: var(--red);
  font-size: 0.82rem;
}

.result-panel {
  min-height: 480px;
}

.order-id {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 360px;
  padding: 2rem;
  text-align: center;
}

.empty-icon {
  width: 4.4rem;
  height: 4.4rem;
  margin-bottom: 1rem;
  color: #a8c2c6;
}

.empty-icon svg {
  width: 100%;
  height: 100%;
}

.empty-state h3 {
  margin-bottom: 0.4rem;
  font-size: 1.1rem;
}

.empty-state p {
  max-width: 420px;
  color: var(--muted);
  font-size: 0.88rem;
}

.result-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.85rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.32rem 0.65rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.status-badge.fulfilled {
  background: var(--green-soft);
  color: var(--green);
}

.status-badge.partial {
  background: var(--amber-soft);
  color: var(--amber);
}

.status-badge.unfulfillable {
  background: var(--red-soft);
  color: var(--red);
}

.result-time {
  color: var(--muted);
  font-size: 0.76rem;
}

.summary {
  margin-bottom: 1.15rem;
  color: #29464e;
  font-size: 0.94rem;
  line-height: 1.6;
}

.allocation-list {
  display: grid;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.allocation-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--surface-soft);
}

.allocation-card header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0.95rem;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.allocation-card h3 {
  font-size: 0.94rem;
}

.allocation-meta {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.cold-badge {
  flex: 0 0 auto;
  padding: 0.22rem 0.5rem;
  border-radius: 999px;
  background: #e8f1fb;
  color: var(--blue);
  font-size: 0.66rem;
  font-weight: 700;
  white-space: nowrap;
}

.allocation-table {
  width: 100%;
  border-collapse: collapse;
}

.allocation-table th,
.allocation-table td {
  padding: 0.5rem 0.95rem;
  border-bottom: 1px solid rgba(217, 228, 231, 0.7);
  font-size: 0.78rem;
  text-align: left;
}

.allocation-table th {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.allocation-table td:last-child,
.allocation-table th:last-child {
  text-align: right;
}

.allocation-cost {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 0.95rem;
  color: var(--muted);
  font-size: 0.76rem;
}

.allocation-cost strong {
  color: var(--ink);
}

.totals {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--teal-soft);
}

.totals span {
  color: var(--teal-dark);
  font-size: 0.82rem;
  font-weight: 600;
}

.totals strong {
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.alert {
  margin-bottom: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid #ecc4be;
  border-radius: 12px;
  background: var(--red-soft);
  color: var(--red);
  font-size: 0.82rem;
}

.alert strong {
  display: block;
  margin-bottom: 0.3rem;
}

.alert ul {
  margin: 0.3rem 0 0;
  padding-left: 1.1rem;
}

details {
  margin-top: 0.65rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
}

details[open] {
  background: var(--surface-soft);
}

summary {
  padding: 0.8rem 0.95rem;
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
}

details > div {
  padding: 0 0.95rem 0.95rem;
}

.factor-list,
.assumption-list {
  margin: 0;
  padding-left: 1.1rem;
  color: #36545c;
  font-size: 0.82rem;
}

.factor-list li,
.assumption-list li {
  margin-bottom: 0.45rem;
}

.exclusion-box {
  margin-top: 0.7rem;
  padding: 0.7rem 0.8rem;
  border-left: 3px solid #d6a13c;
  background: var(--amber-soft);
  color: #71470a;
  font-size: 0.78rem;
}

.cost-table,
.alt-table {
  width: 100%;
  border-collapse: collapse;
}

.cost-table th,
.cost-table td,
.alt-table th,
.alt-table td {
  padding: 0.5rem 0.4rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.76rem;
  text-align: left;
}

.cost-table th,
.alt-table th {
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.cost-table td:last-child,
.cost-table th:last-child,
.alt-table td:last-child,
.alt-table th:last-child {
  text-align: right;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.55rem 0.45rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.78rem;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

.data-table tr:last-child td {
  border-bottom: 0;
}

.data-table.compact th,
.data-table.compact td {
  padding: 0.42rem 0.4rem;
  font-size: 0.72rem;
}

.table-scroll {
  max-width: 100%;
  overflow-x: auto;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.42rem;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
}

.tag.cold {
  background: #e8f1fb;
  color: var(--blue);
}

.tag.yes {
  background: var(--green-soft);
  color: var(--green);
}

.tag.no {
  background: #f1f3f4;
  color: #7a898d;
}

.secondary-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 1.4rem;
  margin-top: 1.4rem;
  align-items: start;
  min-width: 0;
}

.insights-panel {
  margin-top: 1.4rem;
}

.caveat {
  max-width: 330px;
  color: var(--muted);
  font-size: 0.72rem;
  text-align: right;
}

.insights-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.7rem;
  margin-bottom: 1rem;
}

.insight-card {
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--teal);
  border-radius: 10px;
  background: var(--surface-soft);
  color: #33535b;
  font-size: 0.8rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  width: min(1240px, calc(100% - 2.4rem));
  margin: 0 auto;
  padding: 0 0 2rem;
  color: var(--muted);
  font-size: 0.72rem;
}

@media (max-width: 980px) {
  .workspace,
  .secondary-grid {
    grid-template-columns: 1fr;
  }

  .result-panel {
    min-height: 0;
  }

  .site-header {
    flex-direction: column;
    gap: 1.2rem;
  }

  .header-meta {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding: 1.6rem 1.1rem 1.9rem;
  }

  main {
    width: calc(100% - 1.4rem);
    padding-top: 1rem;
  }

  .panel {
    padding: 1.1rem;
    border-radius: 14px;
  }

  .brand {
    gap: 0.7rem;
  }

  .brand-mark {
    width: 2.4rem;
    height: 2.4rem;
  }

  .item-row {
    grid-template-columns: minmax(0, 1fr) 5.1rem 2rem;
  }

  .allocation-card header {
    flex-direction: column;
    gap: 0.4rem;
  }

  .site-footer {
    flex-direction: column;
    width: calc(100% - 1.4rem);
    padding-bottom: 1.4rem;
  }

  .caveat {
    max-width: none;
    text-align: left;
  }
}