style.css

/* --- Construction theme tokens --- */
:root {
  --bg: #0f172a; /* slate-900 */
  --panel: #111827; /* gray-900 */
  --panel-2: #1f2937; /* gray-800 */
  --text: #e5e7eb; /* gray-200 */
  --muted: #9ca3af; /* gray-400 */
  --accent: #f97316; /* safety orange */
  --accent-2: #2563eb; /* blueprint blue */
  --ok: #22c55e;
  --warn: #f59e0b;
  --ring: rgba(249, 115, 22, 0.35);
  --shadow: 0 10px 20px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family:
    "Oswald",
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    sans-serif;
  line-height: 1.45;
  margin: 0;
}

/* --- Page shell --- */
.wrapper {
  max-width: 960px;
  margin: 32px auto;
  padding: 0 16px 40px;
}

/* --- Header row with unit toggle --- */
.header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

/* Top bar with subtle “caution tape” accent */
.site-header {
  position: relative;
  background: var(--panel);
  border: 1px solid #222;
  border-radius: 14px;
  padding: 18px 20px 12px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}
.site-header .title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.site-header .sub {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
  overflow-wrap: break-word;
}
@media (max-width: 400px) {
  .site-header .sub {
    font-size: 0.75em;
  }
}
.header-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  flex-shrink: 0;
}

.offline-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  color: #f87171;
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.3);
  border-radius: 99px;
}
.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -10px;
  height: 10px;
  border-radius: 0 0 14px 14px;
  background: repeating-linear-gradient(
    -45deg,
    var(--accent) 0 12px,
    #111827 12px 24px
  );
}

/* --- Panel / card --- */
.card {
  background: var(--panel-2);
  border: 1px solid #23272f;
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 18px;
  margin-top: 22px;
}

/* --- Form controls --- */
label {
  font-size: 13px;
  color: var(--muted);
  display: block;
  margin-bottom: 6px;
}

input[type="text"],
input[type="number"],
select {
  width: 100%;
  background: #0b1020;
  color: var(--text);
  border: 1px solid #24304a;
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
  font-family: inherit;
  font-size: 16px; /* prevents iOS auto-zoom on focus */
  transition:
    box-shadow 0.15s ease,
    border-color 0.15s ease,
    transform 0.02s ease;
}
input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--ring);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(180deg, var(--accent), #ea580c);
  color: #111;
  border: 1px solid #9a3a07;
  border-radius: 12px;
  padding: 12px 16px;
  min-height: 44px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 0.06s ease,
    filter 0.15s ease,
    box-shadow 0.15s ease;
  box-shadow: 0 6px 18px rgba(249, 115, 22, 0.25);
  margin-top: 12px;
}
.btn:hover {
  filter: brightness(1.05);
}
.btn:active {
  transform: translateY(1px);
}

/* --- Section layout --- */

/* --- Notes / results area --- */
.note {
  background: #0b1020;
  border: 1px solid #24304a;
  border-radius: 12px;
  padding: 12px;
  min-height: 56px;
  color: var(--text);
  font-size: 14px;
}

/* Results base */
.results {
  border: 1px solid #24304a;
  border-radius: 12px;
  padding: 12px;
  margin-top: 14px;
  font-size: 14px;
}

/* Results / Notes states */
.results-pass,
.note.result-pass {
  background: #e9f5e9; /* light green */
  color: #111827; /* dark text */
  border-left: 4px solid #28a745;
}

.results-warn {
  background: #fff7e6; /* light amber */
  color: #111827;
  border-left: 4px solid #ffc107;
}

.results-fail,
.note.result-fail {
  background: #fcebea; /* light red */
  color: #111827;
  border-left: 4px solid #dc3545;
}

.site-footer {
  margin-top: 24px;
  padding: 16px 0 8px;
  border-top: 1px solid #1f2937;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}
.disclaimer {
  font-style: italic;
  margin: 0 0 4px;
}

/* --- Overload Advisor --- */
.overload-advisor {
  margin-top: 10px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.55);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  font-size: 13px;
}
.oa-heading {
  margin: 0 0 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: #c2410c;
}
.oa-body {
  margin: 0;
  color: #374151;
  line-height: 1.5;
}

/* --- Support Comparison table --- */
#supportComparison {
  margin-top: 16px;
}
.sc-heading {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--muted);
}
.sc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.sc-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  padding: 0 8px 6px;
  border-bottom: 1px solid #23272f;
}
.sc-table td {
  padding: 7px 8px;
  border-bottom: 1px solid #1f2937;
  color: var(--text);
}
.sc-table tbody tr:last-child td {
  border-bottom: none;
}
.sc-current td {
  background: rgba(249, 115, 22, 0.07);
}
.sc-current td:first-child {
  font-weight: 700;
  color: var(--accent);
}
.sc-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 7px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 700;
}
.sc-pass {
  background: rgba(34, 197, 94, 0.15);
  color: #22c55e;
}
.sc-warn {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
}
.sc-fail {
  background: rgba(220, 53, 69, 0.15);
  color: #f87171;
}
.sc-table tbody tr {
  transition: background 0.15s ease;
}
.sc-table tbody tr:hover td {
  background: rgba(255, 255, 255, 0.05);
}
.sc-table tbody tr.sc-current td,
.sc-table tbody tr.sc-current:hover td {
  background: rgba(249, 115, 22, 0.07);
}
.sf-hint {
  font-size: 11px;
  color: var(--muted);
}

/* --- Result explanation block --- */
.result-explanation {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(0, 0, 0, 0.12);
  font-size: 13px;
  line-height: 1.5;
}
.re-title {
  margin: 0 0 5px;
  font-weight: 600;
}
.re-sub {
  margin: 0 0 4px;
  color: #374151;
}
.re-list {
  margin: 4px 0 0 18px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.re-list li {
  color: #374151;
  line-height: 1.4;
}

.subtitle {
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
}

/* --- Tiny helpers --- */
.row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.row > * {
  flex: 1;
}

/* --- Distribution / Support two-column grid --- */
.conditions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}
.conditions-grid select {
  width: 100%;
  box-sizing: border-box;
}
@media (max-width: 600px) {
  .conditions-grid {
    grid-template-columns: 1fr;
  }
}
.hr {
  height: 1px;
  background: #1f2937;
  border: 0;
  margin: 16px 0;
}
.small {
  font-size: 12px;
  color: var(--muted);
}

/* Fieldset tidy */
.filters {
  margin: 12px 0;
  border: 1px solid #24304a;
  border-radius: 12px;
  padding: 10px 12px;
}
.filters legend {
  color: var(--muted);
  font-size: 12px;
  padding: 0 6px;
}
.filters label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-right: 12px;
  margin-bottom: 4px;
  min-height: 44px;
  padding: 0 4px;
}

/* --- Disabled button state --- */
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  filter: none;
  box-shadow: none;
  transform: none;
}

/* --- Step headers --- */
.step-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 24px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid #23272f;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.step-header:first-of-type {
  margin-top: 4px;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: #111;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  transition: background 0.3s ease, color 0.3s ease;
}
.step-num.inactive {
  background: var(--muted);
  color: #1f2937;
}

/* --- Step section locking --- */
.step-section {
  transition: opacity 0.3s ease;
}
.step-section.locked {
  opacity: 0.4;
  pointer-events: none;
}

/* --- Inline field errors --- */
.inline-error {
  font-size: 12px;
  color: #f87171;
  margin-top: 6px;
}


/* --- Load item edit mode --- */
.load-item-edit {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  min-width: 0;
}
.load-item-qty-input {
  width: 80px;
  padding: 4px 8px;
  font-size: 13px;
  border-radius: 6px;
  flex-shrink: 0;
}
.btn-edit {
  background: none;
  border: none;
  color: var(--accent-2);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  padding: 0 4px;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: color 0.15s ease;
}
.btn-edit:hover {
  color: #93c5fd;
}
.btn-confirm {
  background: none;
  border: none;
  color: var(--ok);
  font-family: inherit;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  flex-shrink: 0;
  transition: color 0.15s ease;
}
.btn-confirm:hover {
  color: #4ade80;
}

/* --- Secondary button (blueprint blue) --- */
.btn-secondary {
  background: linear-gradient(180deg, var(--accent-2), #1d4ed8);
  border-color: #1e3a8a;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.25);
  color: #fff;
}

/* --- Add-to-load row --- */
.row-add {
  align-items: flex-end;
}
.add-btn-col {
  display: flex;
  align-items: flex-end;
}
.add-btn-col .btn {
  width: 100%;
  margin-top: 0;
}
.unit-toggle-col {
  flex: none;
  display: flex;
  align-items: flex-end;
}

/* --- Load items list --- */
#loadItems {
  margin: 14px 0 6px;
  border: 1px solid #24304a;
  border-radius: 12px;
  padding: 10px 12px;
  background: #0b1020;
}
#loadItems {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid #23272f;
}

.load-items-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}
.load-empty {
  margin: 0;
  padding: 14px 8px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  line-height: 1.5;
}
.btn-ghost {
  background: none;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  padding: 0 8px;
  min-height: 44px;
  border-radius: 6px;
  transition: color 0.15s ease;
  display: inline-flex;
  align-items: center;
}
.btn-ghost:hover {
  color: var(--text);
}
.load-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.load-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  background: #111827;
  border-radius: 8px;
  padding: 6px 10px;
  min-height: 44px;
}
.btn-remove {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  line-height: 1;
  /* minimum 44×44px touch target */
  min-width: 44px;
  min-height: 44px;
  padding: 0 8px;
  border-radius: 4px;
  transition: color 0.15s ease;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-remove:hover {
  color: #dc3545;
}

/* --- Custom materials section --- */
.custom-materials {
  margin-top: 4px;
  background: rgba(249, 115, 22, 0.04);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  padding: 0 10px;
}
.custom-materials summary {
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
  padding: 0 2px;
  min-height: 44px;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.15s ease;
}
.custom-materials summary:hover {
  color: var(--text);
}
.custom-materials summary::before {
  content: "+";
  font-weight: 700;
  font-size: 14px;
  transition: transform 0.2s ease;
  display: inline-block;
}
.custom-materials[open] summary::before {
  transform: rotate(45deg);
}
.custom-materials form {
  margin-top: 10px;
}
textarea {
  width: 100%;
  background: #0b1020;
  color: var(--text);
  border: 1px solid #24304a;
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
  resize: vertical;
  min-height: 60px;
  font-family: inherit;
  font-size: 16px; /* prevents iOS auto-zoom on focus */
  transition:
    box-shadow 0.15s ease,
    border-color 0.15s ease;
}
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--ring);
}
.custom-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.custom-material-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  background: #0b1020;
  border: 1px solid #24304a;
  border-radius: 8px;
  padding: 6px 10px;
}

/* --- Unit toggle --- */
.unit-toggle {
  display: flex;
  background: #0b1020;
  border: 1px solid #24304a;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}
.unit-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  /* minimum 44px height touch target */
  min-height: 44px;
  padding: 5px 14px;
  cursor: pointer;
  transition:
    background 0.15s ease,
    color 0.15s ease;
}
.unit-btn.active {
  background: var(--accent);
  color: #fff;
}

/* --- Load Summary card --- */
.load-summary {
  margin-top: 16px;
  padding: 12px 14px;
  background: #0b1020;
  border: 1px solid #24304a;
  border-radius: 12px;
}
.load-summary-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--accent);
  margin-bottom: 10px;
}
.load-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  margin-bottom: 6px;
}
.load-summary-label {
  color: var(--muted);
}
.load-summary-row strong,
.load-summary-row span:last-child {
  color: var(--text);
}
.gauge-track-wrap {
  margin-top: 8px;
}

/* --- Weight gauge bar --- */
.gauge-track {
  height: 10px;
  background: #1f2937;
  border-radius: 99px;
  overflow: hidden;
}
.gauge-bar {
  height: 100%;
  width: 0%;
  border-radius: 99px;
  transition:
    width 0.3s ease,
    background 0.3s ease;
}
.gauge-bar.gauge-idle {
  background: transparent;
}
.gauge-bar.gauge-ok {
  background: var(--ok);
}
.gauge-bar.gauge-warn {
  background: var(--warn);
}
.gauge-bar.gauge-fail {
  background: #dc3545;
}

/* --- Distribution field hint --- */
.field-hint {
  font-size: 11px;
  color: var(--muted);
  margin-top: 5px;
  min-height: 14px;
  line-height: 1.4;
}

/* --- Presets section --- */
.presets {
  margin-top: 4px;
  background: rgba(249, 115, 22, 0.04);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  padding: 0 10px;
}
.presets summary {
  cursor: pointer;
  font-size: 13px;
  color: var(--muted);
  padding: 0 2px;
  min-height: 44px;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.15s ease;
}
.presets summary:hover {
  color: var(--text);
}
.presets summary::before {
  content: "◈";
  font-weight: 700;
  font-size: 13px;
  transition: opacity 0.2s ease;
  display: inline-block;
}
.presets[open] summary::before {
  opacity: 0.6;
}
.preset-save {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  margin-top: 10px;
}
.preset-save input {
  flex: 1;
}
.preset-save .btn {
  margin-top: 0;
  white-space: nowrap;
}
.preset-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.preset-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  background: #0b1020;
  border: 1px solid #24304a;
  border-radius: 8px;
  padding: 6px 10px;
  min-height: 44px;
}
.preset-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* --- Calculation history --- */
.history-heading {
  font-size: 14px;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 6px;
  padding-top: 14px;
  border-top: 1px solid #23272f;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.history-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
  background: #0b1020;
  border-radius: 8px;
  padding: 6px 10px;
  gap: 8px;
  min-height: 44px;
  transition: background 0.15s ease;
}
.history-item:hover {
  background: rgba(255, 255, 255, 0.05);
}
.history-item .history-status {
  font-weight: 700;
  flex-shrink: 0;
}
.history-item .history-status.pass {
  color: var(--ok);
}
.history-item .history-status.warn {
  color: var(--warn);
}
.history-item .history-status.fail {
  color: #f87171;
}
.history-item .history-detail {
  flex: 1;
  overflow-wrap: break-word;
  word-break: break-word;
}
.history-item .history-time {
  flex-shrink: 0;
  color: #4b5563;
}

/* --- Copy result button --- */
.btn-copy {
  margin-top: 10px;
  font-size: 13px;
  padding: 8px 14px;
}
.btn-copy:not(.btn-outline) {
  color: #fff;
}
.btn-outline {
  background: transparent;
  border: 1px solid #374151;
  color: var(--muted);
  box-shadow: none;
}
.btn-outline:hover {
  border-color: #4b5563;
  color: var(--text);
}

/* --- Mobile overrides --- */
@media (max-width: 480px) {
  .wrapper {
    margin: 12px auto;
    padding: 0 10px 20px;
  }

  .site-header {
    padding: 14px 14px 10px;
  }

  /* Stack other flex rows vertically; keep quantity+add-button row horizontal */
  .row:not(.row-add) {
    flex-direction: column;
    gap: 10px;
  }

  /* Preset save: stack input above button */
  .preset-save {
    flex-direction: column;
  }
  .preset-save .btn {
    width: 100%;
  }

  /* Full-width Add to Load and action buttons */
  .row-add {
    flex-direction: column;
  }
  .row-add > * {
    width: 100%;
  }
  .unit-toggle-col {
    width: auto;
    align-self: flex-start;
  }
  .add-btn-col {
    width: 100%;
  }
  .action-row {
    flex-direction: column;
  }
  .action-row .btn {
    width: 100%;
  }
}

/* --- Material action buttons (detail + favorite) --- */
.material-actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
}
.btn-star {
  background: none;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 0 6px;
  border-radius: 4px;
  transition: color 0.15s ease;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-star:hover {
  color: var(--warn);
}
.btn-star.is-favorite {
  color: var(--warn);
}

/* --- Action row (Calculate + Share side by side) --- */
.action-row {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}
.action-row .btn {
  margin-top: 0;
  flex: 1;
}

/* --- QR / share section --- */
#qrSection {
  margin-top: 12px;
  background: #0b1020;
  border: 1px solid #24304a;
  border-radius: 12px;
  padding: 12px;
}
.qr-url {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.qr-url-text {
  font-size: 11px;
  color: var(--muted);
  word-break: break-all;
  flex: 1;
}
.qr-img {
  display: block;
  width: 150px;
  height: 150px;
  border-radius: 8px;
}

/* --- Modal overlay --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 100;
}
.modal-box {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  width: calc(100% - 32px);
  max-width: 420px;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 16px 0;
}
.modal-title {
  font-size: 16px;
  font-weight: 700;
  color: #111827;
  margin: 0;
}
.modal-body {
  padding: 12px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.modal-row {
  display: flex;
  gap: 12px;
  font-size: 13px;
  color: #1f2937;
}
.modal-label {
  color: #6b7280;
  flex-shrink: 0;
  width: 100px;
}

/* --- Tooltip / popover --- */
.tooltip-wrap {
  position: relative;
}
.label-row {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-bottom: 6px;
}
.label-row label {
  margin-bottom: 0;
}
.tooltip-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 50%;
  margin: -13px -6px; /* collapse visual gap; tap area stays 44px */
}
.tooltip-btn-inner {
  width: 16px;
  height: 16px;
  border: 1px solid #4b5563;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  color: var(--muted);
  line-height: 1;
  pointer-events: none;
  flex-shrink: 0;
  transition:
    background 0.15s ease,
    color 0.15s ease,
    border-color 0.15s ease;
}
.tooltip-btn:hover .tooltip-btn-inner,
.tooltip-btn[aria-expanded="true"] .tooltip-btn-inner {
  background: #374151;
  color: var(--text);
  border-color: #6b7280;
}
.tooltip-popover {
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  width: min(280px, calc(100vw - 32px));
  background: #111827;
  border: 1px solid #374151;
  border-radius: 12px;
  padding: 12px;
  z-index: 50;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}
.tip-right .tooltip-popover {
  left: auto;
  right: 0;
}
.tip-heading {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin: 0 0 8px;
}
.tip-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-top: 1px solid #1f2937;
}
.tip-item:first-of-type {
  border-top: none;
  padding-top: 0;
}
.tip-svg {
  width: 80px;
  height: auto;
  flex-shrink: 0;
}
.tip-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding-top: 2px;
}
.tip-label {
  font-size: 12px;
  font-weight: 700;
}
.tip-ok {
  color: var(--ok);
}
.tip-warn {
  color: var(--warn);
}
.tip-fail {
  color: #f87171;
}
.tip-desc {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.4;
}
.tip-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tip-list li {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}
.tip-list li strong {
  color: var(--text);
}
.tip-note {
  font-size: 11px;
  color: #4b5563;
  font-style: italic;
  margin: 8px 0 0;
}

/* --- Load Fingerprint card --- */
#loadFingerprint {
  margin-top: 16px;
}
.fingerprint-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 16px;
  font-family: "Oswald", system-ui, sans-serif;
  color: #111827;
}
.fingerprint-status {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
}
.fingerprint-status-pass {
  background: #dcfce7;
}
.fingerprint-status-warn {
  background: #fef9c3;
}
.fingerprint-status-fail {
  background: #fee2e2;
}
.fingerprint-status-label {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #111827;
}
.fingerprint-status-pct {
  font-size: 13px;
  color: #374151;
}
.fingerprint-bar {
  display: flex;
  height: 30px;
  border-radius: 6px;
  overflow: hidden;
  gap: 2px;
  margin-bottom: 6px;
}
.fingerprint-segment {
  display: flex;
  align-items: center;
  padding: 0 6px;
  font-size: 10px;
  font-weight: 600;
  color: #fff;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 4px;
}
.fingerprint-seg-rigid {
  background: #3b82f6;
}
.fingerprint-seg-loose {
  background: #f59e0b;
}
.fingerprint-seg-stackable {
  background: #14b8a6;
}
.fingerprint-legend {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.fingerprint-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.fingerprint-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}
.fingerprint-legend-label {
  font-size: 11px;
  color: #6b7280;
}
.fingerprint-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  padding: 10px 0;
  border-top: 1px solid #e5e7eb;
}
.fingerprint-summary-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.fingerprint-summary-label {
  font-size: 10px;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.fingerprint-summary-value {
  font-size: 14px;
  font-weight: 700;
  color: #111827;
}
.fingerprint-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid #e5e7eb;
}
.fingerprint-timestamp {
  font-size: 11px;
  color: #6b7280;
}
.fingerprint-watermark {
  font-size: 10px;
  font-weight: 600;
  color: #d1d5db;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* --- Print styles --- */
@media print {
  body {
    background: white;
    color: black;
  }
  .site-header::after {
    display: none;
  }
  .site-header,
  .card {
    background: white;
    box-shadow: none;
    border: 1px solid #ccc;
  }
  /* Hide the form card, show only results panel */
  main {
    display: none;
  }
  #resultsPanel {
    display: block !important;
  }
  .results {
    display: block !important;
  }
  .results-pass {
    background: #e9f5e9;
    color: black;
  }
  .results-warn {
    background: #fff7e6;
    color: black;
  }
  .results-fail {
    background: #fcebea;
    color: black;
  }
  .btn-copy,
  .unit-toggle {
    display: none;
  }
}

/* --- Details expand/collapse animation --- */
.details-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease, opacity 0.25s ease;
  opacity: 0;
}
details[open] .details-body {
  grid-template-rows: 1fr;
  opacity: 1;
}
.details-inner {
  overflow: hidden;
  min-height: 0;
}