@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=IBM+Plex+Mono:wght@400;500&display=swap");

:root {
  --bg: #f2eee5;
  --bg-deep: #d6d4cb;
  --panel: rgba(255, 251, 243, 0.96);
  --ink: #182022;
  --muted: #596265;
  --accent: #0b6e4f;
  --accent-deep: #114f3d;
  --accent-soft: #d7efe5;
  --soil: #9b6b43;
  --steel: #3a596a;
  --water: #2f8fda;
  --line: rgba(24, 32, 34, 0.16);
  --shadow: 0 3px 12px rgba(24, 32, 34, 0.06);
}

* { box-sizing: border-box; }

html { min-width: 320px; }

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: clip;
  color: var(--ink);
  background: linear-gradient(180deg, #f7f5ef 0%, var(--bg) 100%);
  font: 15px/1.45 "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
}

a { color: var(--accent-deep); }

:focus-visible {
  outline: 3px solid #176cb0;
  outline-offset: 2px;
}

.topbar {
  position: sticky;
  z-index: 10;
  top: 0;
  display: flex;
  min-height: 62px;
  align-items: center;
  gap: 20px;
  padding: 8px max(20px, calc((100vw - 2160px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(255, 251, 243, 0.97);
  box-shadow: 0 2px 8px rgba(24, 32, 34, 0.06);
}

.brand {
  flex: 0 0 auto;
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.brand span { color: var(--accent); }

.topbar-links {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  gap: 18px;
  min-width: 0;
}

.topbar-links a {
  font-size: 13px;
  text-decoration: none;
}

.service-pill {
  flex: 0 0 auto;
  padding: 5px 10px;
  border: 1px solid #c5a04e;
  border-radius: 999px;
  background: #fff5d9;
  color: #694b0a;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.service-pill.is-online {
  border-color: #80b99f;
  background: #e1f3e9;
  color: #15533e;
}

.service-pill.is-offline {
  border-color: #d89a92;
  background: #fff0ed;
  color: #8b2922;
}

.action-button,
.secondary-button,
.phase-select,
.quick-editor-field input,
.quick-editor-field select,
.contact-field input,
.contact-field textarea {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

.action-button,
.secondary-button { cursor: pointer; }

.action-button {
  flex: 0 0 auto;
  padding: 8px 14px;
  border-color: var(--accent-deep);
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.action-button:hover { background: var(--accent-deep); }

.secondary-button {
  padding: 7px 10px;
  background: #fff;
  color: var(--ink);
  font-size: 13px;
}

.secondary-button:hover { border-color: #7f9890; background: #f6faf7; }

.secondary-button:disabled {
  cursor: default;
  opacity: 0.5;
}

.validation-notice {
  display: flex;
  align-items: baseline;
  gap: 6px;
  min-height: 34px;
  margin: 0;
  padding: 6px 22px;
  border-bottom: 1px solid #d5b966;
  background: #fff4d8;
  color: #5a3a00;
  font-size: 12px;
  line-height: 1.4;
}

.validation-notice strong { white-space: nowrap; }

.workspace {
  display: grid;
  width: 100%;
  max-width: 2200px;
  grid-template-columns: minmax(400px, 440px) minmax(0, 1fr);
  align-items: start;
  gap: 16px;
  margin: 0 auto;
  padding: 12px 20px 24px;
}

.panel,
.report-card,
.contact-card-panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel { padding: 14px; }

.editor-panel {
  position: sticky;
  top: 110px;
  max-height: calc(100vh - 124px);
  overflow: auto;
  overscroll-behavior: contain;
}

.panel-heading,
.canvas-section-heading,
.result-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}

.editor-heading { align-items: start; }

.panel-kicker {
  margin: 0 0 3px;
  color: var(--muted);
  font: 500 10px/1.3 "IBM Plex Mono", "SFMono-Regular", monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1, h2, h3, p { overflow-wrap: anywhere; }

.panel h1,
.panel h2 {
  margin: 0;
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.panel h3 { font-size: 15px; line-height: 1.3; }

.panel-note,
.result-status,
.report-note {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.panel-note { margin: 10px 0; }

.input-download { flex: 0 0 auto; }

.quick-editor-shell { margin-top: 10px; }

.editor-tabs {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  margin: 0 0 10px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #eeece5;
  scrollbar-width: thin;
}

.editor-tab {
  flex: 1 0 auto;
  min-height: 34px;
  padding: 6px 9px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: #4e595b;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
}

.editor-tab[aria-selected="true"] {
  background: #fff;
  color: var(--accent-deep);
  box-shadow: 0 1px 3px rgba(24, 32, 34, 0.12);
  font-weight: 700;
}

.editor-tab-panel[hidden] { display: none; }

.quick-editor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 9px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.66);
}

.quick-editor-field {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.quick-editor-field span,
.quick-editor-note {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.3;
}

.quick-editor-field input,
.quick-editor-field select {
  width: 100%;
  min-width: 0;
  padding: 6px 8px;
  background: #fffefa;
  color: var(--ink);
  font-size: 13px;
}

.quick-editor-field input::placeholder { color: #879092; }

.quick-editor-field:has(input[placeholder="K0"]),
.quick-editor-field:has(input[placeholder="bp1 mm"]),
.quick-editor-field:has(input[placeholder="k1"]) { grid-column: 1 / -1; }

.quick-editor-actions {
  display: flex;
  min-width: 0;
  align-items: center;
  align-self: end;
  gap: 5px;
  flex-wrap: wrap;
}

.quick-editor-actions .secondary-button {
  min-height: 30px;
  padding: 5px 7px;
  font-size: 11px;
}

.quick-editor-note {
  grid-column: 1 / -1;
  margin: 2px 0 0;
}

.ec7-factor-block {
  display: grid;
  min-width: 0;
  grid-column: 1 / -1;
  gap: 7px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.ec7-factor-block h3 { margin: 0; }

.ec7-factor-table-shell { max-width: 100%; }

.ec7-factor-table { min-width: 430px; }

.ec7-factor-input { display: block; min-width: 88px; }

.ec7-factor-input input {
  width: 100%;
  min-height: 32px;
  padding: 5px 7px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fffefa;
  color: var(--ink);
  font: inherit;
  font-size: 12px;
}

.ec7-factor-block .quick-editor-actions { justify-self: start; }

.project-input {
  display: block;
  width: 100%;
  min-height: 60vh;
  resize: vertical;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffefa;
  color: var(--ink);
  font: 12px/1.5 "IBM Plex Mono", "SFMono-Regular", monospace;
  tab-size: 2;
}

.project-input[hidden] { display: none; }

.canvas-pane {
  display: grid;
  min-width: 0;
  gap: 12px;
}

.canvas-toolbar {
  display: flex;
  min-width: 0;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(255, 251, 243, 0.88);
}

.phase-control {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
}

.phase-select {
  min-width: 190px;
  padding: 6px 30px 6px 9px;
  background: #fff;
  color: var(--ink);
  font-size: 13px;
}

.result-status {
  margin: 0;
  text-align: right;
}

.status-error { color: #9b2226; font-weight: 500; }

.canvas-visual-row {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(340px, 0.72fr) minmax(0, 1.28fr);
  align-items: stretch;
  gap: 12px;
}

.preview-panel,
.plots-panel { min-width: 0; }

.canvas-section-heading { min-height: 38px; margin-bottom: 6px; }

.demo-result-label {
  padding: 4px 7px;
  border: 1px solid #c5a04e;
  border-radius: 6px;
  background: #fff4d8;
  color: #694b0a;
  font-size: 11px;
  font-weight: 700;
  text-align: right;
}

.geometry-shell { min-width: 0; }

.geometry-figure { min-width: 0; }

.geometry-svg {
  display: block;
  width: 100%;
  height: auto;
  min-height: 520px;
  border: 1px solid rgba(24, 32, 34, 0.1);
  border-radius: 8px;
  background: #fdfbf6;
}

.geometry-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  margin: 8px 2px 0;
  padding: 0;
  color: var(--muted);
  font-size: 11px;
  list-style: none;
}

.geometry-legend li { min-width: 0; }

.snapshot-details {
  margin-top: 8px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.snapshot-details summary { padding: 7px 2px; cursor: pointer; }

.snapshot-grid,
.result-shell,
.report-shell,
.contact-shell { display: grid; min-width: 0; gap: 10px; }

.snapshot-grid { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

.snapshot-card,
.result-card,
.reaction-row,
.report-card,
.contact-card-panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.snapshot-card,
.report-card,
.contact-card-panel { padding: 11px; }

.snapshot-card strong,
.result-card h3,
.report-card h3,
.contact-card-panel h3 { display: block; margin: 0 0 5px; }

.snapshot-card p,
.result-card p,
.reaction-row p,
.report-card p,
.contact-card-panel p { margin: 0; color: var(--muted); font-size: 13px; }

.snapshot-grid { padding-bottom: 10px; }

.depth-plot-grid {
  display: grid;
  min-width: 0;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 8px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

.plot-empty { margin: 12px 0; color: var(--muted); font-size: 12px; }

.json-editor-note { margin: 0 0 8px; color: var(--muted); font-size: 12px; }

.depth-plot-card {
  min-width: 0;
  padding: 7px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffefa;
}

.depth-plot-card h3 {
  min-height: 32px;
  margin: 0 0 3px;
  font-size: 12px;
  line-height: 1.25;
}

.additional-plot-card summary {
  min-height: 32px;
  color: var(--ink);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.25;
}

.plot-svg {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(24, 32, 34, 0.08);
  border-radius: 5px;
  background: linear-gradient(180deg, #fff, #f7f5ef);
}

.empty-plots {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.empty-plots[hidden] { display: none; }

.result-panel { padding: 12px; }

.result-toolbar { align-items: start; margin-bottom: 10px; }

.result-view-toolbar {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8f7f2;
}

.export-actions {
  display: flex;
  justify-content: end;
  gap: 6px;
  flex-wrap: wrap;
}

.result-shell { grid-template-columns: minmax(0, 1fr); }

.result-grid {
  display: grid;
  min-width: 0;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px;
}

.result-card {
  overflow: hidden;
  padding: 10px;
}

.result-card-wide { grid-column: 1 / -1; }

.result-grid .result-card:first-child {
  background: linear-gradient(145deg, rgba(215, 239, 229, 0.84), #fff);
}

.result-card p + .table-shell,
.result-card p + .result-meta-list { margin-top: 8px; }

.result-meta-list {
  display: grid;
  gap: 4px;
  margin: 8px 0 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 12px;
}

.deformed-svg {
  display: block;
  width: min(100%, 260px);
  height: auto;
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fffefa;
}

.table-shell {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  white-space: nowrap;
}

th, td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th { background: #f0eee7; font-weight: 700; }

.reaction-list,
.report-list { display: grid; gap: 7px; }

.reaction-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 9px;
}

.reaction-row strong { display: block; }

.report-shell,
.contact-shell { grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr)); }

.contact-form { display: grid; gap: 10px; margin-top: 10px; }

.contact-field { display: grid; gap: 4px; }

.contact-field span,
.contact-consent span { color: var(--muted); font-size: 12px; }

.contact-field input,
.contact-field textarea {
  width: 100%;
  padding: 7px 9px;
  background: #fffefa;
  color: var(--ink);
}

.contact-field textarea { min-height: 7rem; resize: vertical; }

.contact-consent { display: flex; align-items: center; gap: 7px; }

.contact-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.contact-actions a { font-weight: 700; text-decoration: none; }

.contact-turnstile { min-height: 36px; }

@media (min-width: 1800px) {
  .workspace { gap: 20px; padding-right: 24px; padding-left: 24px; }
  .canvas-visual-row { grid-template-columns: minmax(420px, 0.78fr) minmax(0, 1.22fr); }
  .depth-plot-grid { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }
}

@media (max-width: 1099px) {
  .workspace { grid-template-columns: minmax(0, 1fr); }
  .editor-panel { position: static; max-height: none; overflow: visible; }
  .canvas-visual-row { grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); }
}

@media (max-width: 899px) {
  .topbar { position: relative; flex-wrap: wrap; gap: 8px 12px; padding: 9px 12px; }
  .brand { flex: 1 1 220px; font-size: 15px; }
  .topbar-links { order: 3; flex: 1 1 100%; gap: 16px; }
  .service-pill { margin-left: auto; }
  .topbar > .action-button { padding: 7px 10px; }
  .validation-notice { display: block; padding: 8px 12px; }
  .validation-notice strong { white-space: normal; }
  .validation-notice span { display: block; }
  .workspace { gap: 10px; padding: 10px; }
  .canvas-visual-row { grid-template-columns: minmax(0, 1fr); }
  .geometry-svg { width: min(100%, 600px); margin: 0 auto; }
  .geometry-svg { min-height: 0; }
  .depth-plot-grid { grid-template-columns: minmax(0, 1fr); }
  .canvas-toolbar { align-items: start; flex-direction: column; }
  .result-status { text-align: left; }
}

@media (max-width: 560px) {
  .workspace { padding: 8px; }
  .panel { padding: 10px; }
  .panel h1, .panel h2 { font-size: 17px; }
  .panel-note { font-size: 12px; }
  .editor-heading { align-items: center; }
  .input-download { max-width: 145px; white-space: normal; line-height: 1.2; }
  .editor-tabs { margin-right: -3px; }
  .quick-editor-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; padding: 8px; }
  .quick-editor-actions .secondary-button { flex: 1 1 auto; }
  .phase-control { width: 100%; align-items: start; flex-direction: column; gap: 4px; }
  .phase-select { width: 100%; }
  .canvas-toolbar { padding: 8px; }
  .canvas-section-heading { align-items: start; }
  .depth-plot-grid { grid-template-columns: minmax(0, 1fr); }
  .depth-plot-card h3 { min-height: 0; }
  .result-toolbar { align-items: start; flex-direction: column; }
  .export-actions { justify-content: start; }
  .export-actions .secondary-button { flex: 1 1 140px; }
  .snapshot-grid,.result-grid { grid-template-columns: minmax(0, 1fr); }
  .result-card-wide { grid-column: auto; }
  .geometry-legend { display: grid; grid-template-columns: 1fr; }
}

@media print {
  .topbar, .validation-notice, .editor-panel, .canvas-toolbar, .export-actions { display: none !important; }
  .workspace { display: block; max-width: none; padding: 0; }
  .panel, .report-card, .contact-card-panel { box-shadow: none; break-inside: avoid; }
}

.phase-alert {
  margin: 0 0 10px;
  padding: 10px 12px;
  border: 1px solid #b42318;
  border-left-width: 5px;
  border-radius: 8px;
  background: #fdecea;
  color: #5c1411;
  line-height: 1.45;
}

.phase-alert strong { color: #8a1c14; }

.ec7-verification h4 { margin: 12px 0 5px; }