:root {
  color-scheme: light;
  --ink: #182230;
  --muted: #667285;
  --soft-muted: #8995a6;
  --line: #dce3ec;
  --line-strong: #c8d2df;
  --paper: #ffffff;
  --canvas: #f7f9fb;
  --navy: #12385a;
  --blue: #1c6ea4;
  --blue-soft: #e9f3fb;
  --green: #167052;
  --green-soft: #e6f5ef;
  --amber: #99600d;
  --amber-soft: #fff5df;
  --red: #a23a3a;
  --red-soft: #fff0f0;
  --shadow: 0 8px 28px rgba(19, 45, 74, 0.07);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--canvas);
}

button,
input,
select,
textarea {
  font: inherit;
}

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

button {
  cursor: pointer;
}

button:disabled,
select:disabled,
input:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

button:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(28, 110, 164, 0.3);
  outline-offset: 2px;
}

a {
  color: var(--blue);
}

code {
  padding: 0.1rem 0.3rem;
  border-radius: 0.35rem;
  color: var(--navy);
  background: #eef3f7;
  font-size: 0.9em;
}

.page-shell {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 40px;
}

.site-header {
  margin-bottom: 18px;
}

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

h1 {
  margin-bottom: 0;
  color: var(--navy);
  font-size: clamp(1.9rem, 5vw, 2.45rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

h2 {
  margin-bottom: 0;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

h3 {
  margin-bottom: 0;
  font-size: 0.98rem;
}

.config-status {
  margin-bottom: 18px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.7);
  font-size: 0.86rem;
}

.config-status.error {
  border-color: #f0c4c4;
  color: var(--red);
  background: var(--red-soft);
}

.app-grid {
  display: grid;
  gap: 18px;
}

.panel {
  border: 1px solid rgba(200, 210, 223, 0.8);
  border-radius: 14px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.calculator-panel,
.result-panel {
  padding: clamp(16px, 3vw, 24px);
}

.panel-heading,
.section-label-row,
.verification-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.panel-heading {
  margin-bottom: 18px;
}

.result-heading {
  align-items: center;
}

.field-stack {
  display: grid;
  gap: 12px;
}

.selection-fields {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.object-fields {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.field {
  min-width: 0;
}

.field label {
  display: block;
  margin-bottom: 5px;
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 750;
}

.field input,
.field select,
textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  color: var(--ink);
  background: #fbfcfd;
}

.field input,
.field select {
  min-height: 41px;
  padding: 0 12px;
}

.field input:focus,
.field select:focus,
textarea:focus {
  border-color: var(--blue);
  background: #fff;
  outline: none;
}

.field-help,
.section-caption,
.panel-intro,
.action-status {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.field-help {
  min-height: 1.1em;
  margin: 5px 0 0;
}

.form-divider {
  height: 1px;
  margin: 18px 0 16px;
  background: var(--line);
}

.section-label-row {
  align-items: baseline;
  margin-bottom: 15px;
}

.section-caption {
  margin-bottom: 0;
  text-align: right;
}

.assumptions-details {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.custom-filament-price {
  margin-top: 10px;
}

.sliced-file-import {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.sliced-file-import label {
  display: block;
  margin-bottom: 5px;
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 750;
}

.sliced-file-import input {
  width: 100%;
  min-height: 41px;
  padding: 7px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  color: var(--ink);
  background: #fbfcfd;
}

.sliced-file-import input:focus {
  border-color: var(--blue);
  background: #fff;
  outline: none;
}

.sliced-file-import .action-status {
  margin-bottom: 0;
}

.assumptions-details summary,
.import-panel > summary {
  padding: 14px 0;
  cursor: pointer;
  color: var(--navy);
  font-size: 0.84rem;
  font-weight: 750;
  list-style-position: inside;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.button {
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid transparent;
  border-radius: 9px;
  font-size: 0.84rem;
  font-weight: 800;
  transition: border-color 120ms ease, background 120ms ease, transform 120ms ease;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.primary-button {
  color: #fff;
  background: var(--navy);
}

.primary-button:hover:not(:disabled) {
  background: #0d2c48;
}

.secondary-button {
  border-color: var(--line-strong);
  color: var(--navy);
  background: #fff;
}

.secondary-button:hover:not(:disabled) {
  border-color: var(--blue);
  background: var(--blue-soft);
}

.text-button {
  padding: 8px 5px;
  border: 0;
  color: var(--muted);
  background: transparent;
  font-size: 0.84rem;
  font-weight: 700;
}

.text-button:hover {
  color: var(--navy);
}

.action-status {
  min-height: 1.2em;
  margin: 9px 0 0;
}

.action-status.success {
  color: var(--green);
}

.action-status.error {
  color: var(--red);
}

.result-hero {
  padding: 24px;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(135deg, #12385a, #1b6b91);
}

.result-label,
.meta-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.result-label {
  color: rgba(255, 255, 255, 0.7);
}

.result-hero > strong {
  display: block;
  margin: 8px 0 20px;
  font-size: clamp(2.7rem, 8vw, 4rem);
  letter-spacing: -0.06em;
  line-height: 0.95;
}

.per-piece-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.86rem;
}

.per-piece-line strong {
  color: #fff;
  font-size: 1.15rem;
}

.result-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 14px 0 20px;
}

.result-meta > div {
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfcfd;
}

.meta-label {
  margin-bottom: 6px;
  color: var(--soft-muted);
  letter-spacing: 0.07em;
}

.result-meta strong {
  font-size: 0.95rem;
}

.breakdown-section {
  padding-top: 2px;
}

.breakdown-section .section-label-row {
  margin-bottom: 10px;
}

.breakdown-list {
  margin: 0;
}

.breakdown-row {
  position: relative;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.88rem;
}

.breakdown-row dt {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
}

.breakdown-row dd {
  margin: 0;
  color: var(--ink);
  font-weight: 750;
  white-space: nowrap;
}

.breakdown-row:last-child {
  border-bottom: 0;
}

.info-tooltip {
  display: inline-grid;
  width: 17px;
  height: 17px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--blue);
  background: #fff;
  font-size: 0.68rem;
  font-weight: 850;
  line-height: 1;
}

.info-tooltip:hover {
  border-color: var(--blue);
  background: var(--blue-soft);
  transform: none;
}

.cost-tooltip {
  position: absolute;
  z-index: 2;
  top: calc(100% - 3px);
  right: 0;
  width: min(340px, calc(100vw - 48px));
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  color: var(--ink);
  background: #fff;
  box-shadow: 0 8px 20px rgba(19, 45, 74, 0.14);
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.45;
}

.assumptions-details {
  margin-top: 18px;
}

.assumptions-text {
  padding: 0 0 4px 22px;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.55;
}

.assumptions-text p {
  margin-bottom: 7px;
}

.result-actions {
  margin-top: 22px;
}

.panel-intro {
  max-width: 760px;
  margin-bottom: 16px;
}

.import-panel {
  overflow: hidden;
}

.import-panel > summary {
  padding: 20px 24px;
  list-style-position: outside;
}

.import-content {
  padding: 0 24px 24px;
}

textarea {
  display: block;
  min-height: 150px;
  resize: vertical;
  padding: 13px 14px;
  color: var(--ink);
  background: #fbfcfd;
  line-height: 1.5;
}

.import-actions {
  margin-top: 12px;
}

.verification-panel {
  margin-top: 22px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbfcfd;
}

.verification-header {
  align-items: center;
  margin-bottom: 16px;
}

.verification-badge {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--green);
  background: var(--green-soft);
  font-size: 0.75rem;
  font-weight: 750;
}

.verification-badge.warning {
  color: var(--amber);
  background: var(--amber-soft);
}

.verification-body {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.verification-value {
  padding: 12px;
  border-radius: 9px;
  background: #fff;
}

.verification-value span {
  display: block;
  margin-bottom: 5px;
  color: var(--soft-muted);
  font-size: 0.72rem;
}

.verification-value strong {
  display: block;
  color: var(--navy);
  font-size: 1rem;
}

.verification-explanation {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.5;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 560px) {
  .page-shell {
    width: min(100% - 24px, 760px);
    padding-top: 24px;
  }

  .calculator-panel,
  .result-panel {
    padding: 20px 16px;
  }

  .section-caption {
    display: none;
  }

  .selection-fields,
  .object-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .result-hero {
    padding: 20px;
  }

  .result-meta,
  .verification-body {
    grid-template-columns: 1fr;
  }

  .verification-explanation {
    grid-column: auto;
  }

  .result-actions,
  .import-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .text-button {
    width: auto;
    justify-self: start;
  }

  .import-panel > summary {
    padding: 18px 16px;
  }

  .import-content {
    padding: 0 16px 20px;
  }
}