.scr-shell {
  width: min(1080px, calc(100% - 32px));
  margin: 24px auto 60px;
  color: #0f172a;
}

.scr-shell .calc-card {
  box-shadow: 0 18px 34px -30px rgba(15, 23, 42, 0.7);
}

.scr-hero {
  position: static;
  overflow: visible;
}

.scr-hero-head {
  margin-bottom: 12px;
}

.scr-hero code {
  border-radius: 6px;
  border: 1px solid #dbe5f4;
  background: #ffffff;
  padding: 0 6px;
  font-size: 0.9em;
}

.scr-shell .calc-page-intro {
  width: 100%;
  max-width: none;
}

.scr-form {
  display: grid;
  gap: 12px;
}

.scr-field-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 2px 0 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #475569;
}

.scr-input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 8px;
}

.scr-input-row input,
.scr-advanced-grid input,
.scr-advanced-grid select {
  min-height: 48px;
  border: 1px solid #b8c8e1;
  border-radius: 12px;
  background: #ffffff;
  color: #0f172a;
  font-size: 18px;
  padding: 0 14px;
}

.scr-input-row input {
  letter-spacing: 0.12em;
  font-weight: 700;
  text-transform: uppercase;
}

.scr-input-row input:focus,
.scr-advanced-grid input:focus,
.scr-advanced-grid select:focus {
  border-color: #2563eb;
  box-shadow: 0 18px 34px -30px rgba(15, 23, 42, 0.7);
  outline: none;
}

.scr-advanced-grid input:focus,
.scr-advanced-grid select:focus {
  border-color: #2f6fdf;
  box-shadow: 0 18px 34px -30px rgba(15, 23, 42, 0.7);
}

.scr-btn {
  min-height: 48px;
  border-radius: 12px;
  border: 1px solid #9eb0cc;
  padding: 0 18px;
  white-space: nowrap;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.14s ease, border-color 0.14s ease, box-shadow 0.14s ease;
}

#scr-solve-btn {
  min-width: 116px;
}

.scr-btn:hover,
.scr-btn:focus-visible {
  transform: translateY(-1px);
}

.scr-btn-primary {
  border-color: #1b56c0;
  background: #1b56c0;
  color: #ffffff;
}

.scr-btn-primary:hover,
.scr-btn-primary:focus-visible {
  border-color: #255ac4;
  background: #255ac4;
  box-shadow: 0 18px 34px -30px rgba(15, 23, 42, 0.7);
}

.scr-btn-ghost {
  border-color: #b8c8e1;
  background: #ffffff;
  color: #1e293b;
}

.scr-btn-ghost:hover,
.scr-btn-ghost:focus-visible {
  border-color: #2563eb;
}

.scr-validation {
  margin: 0;
  font-size: 13px;
  color: #b91c1c;
  font-weight: 600;
  display: none;
}

.scr-validation:not(:empty) {
  display: block;
}

.scr-results-card > h2 {
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.2;
  font-weight: 600;
  color: #151a1f;
}

.scr-settings {
  border: 0;
  border-radius: 0;
  background: transparent;
  padding: 0;
}

.scr-settings > summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
  color: #4b535d;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.1;
  border: 0;
  background: transparent;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.scr-settings > summary::-webkit-details-marker {
  display: none;
}

.scr-settings > summary::after {
  content: '▾';
  font-size: 13px;
  line-height: 1;
  color: #64748b;
  transition: transform 0.16s ease;
}

.scr-settings[open] > summary::after {
  transform: rotate(180deg);
}

.scr-settings > summary:focus,
.scr-settings > summary:focus-visible {
  outline: none;
  box-shadow: 0 18px 34px -30px rgba(15, 23, 42, 0.7);
}

.scr-settings > summary::selection {
  background: transparent;
  color: inherit;
}

.scr-settings-panel {
  position: static;
  margin-top: 8px;
  border: 1px solid #dbe5f4;
  border-radius: 12px;
  background: #fcfdff;
  box-shadow: 0 18px 34px -30px rgba(15, 23, 42, 0.7);
  padding: 12px;
}

.scr-settings:not([open]) .scr-settings-panel {
  display: none;
}

.scr-advanced-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  align-items: start;
}

.scr-advanced-grid label {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.scr-advanced-grid label > span {
  font-size: 13px;
  color: #334155;
  font-weight: 600;
}

.scr-advanced-grid input,
.scr-advanced-grid select {
  width: 100%;
  min-height: 38px;
  border-radius: 10px;
  border: 1px solid #c8d3e7;
  background: #ffffff;
  color: #0f172a;
  font-size: 14px;
  padding: 0 10px;
  box-sizing: border-box;
  min-width: 0;
}

.scr-advanced-grid select {
  -webkit-appearance: none;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--rp-select-chevron-color, #334155) 50%),
    linear-gradient(135deg, var(--rp-select-chevron-color, #334155) 50%, transparent 50%);
  background-position:
    calc(100% - var(--rp-select-chevron-right, 18px)) 50%,
    calc(100% - var(--rp-select-chevron-right-inner, 13px)) 50%;
  background-size:
    var(--rp-select-chevron-size, 5px) var(--rp-select-chevron-size, 5px),
    var(--rp-select-chevron-size, 5px) var(--rp-select-chevron-size, 5px);
  background-repeat: no-repeat;
  padding-right: var(--rp-select-padding-right, 36px);
  cursor: pointer;
}

.scr-result-summary {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.scr-kpi {
  background: #ffffff;
  border: 1px solid #dbe5f4;
  border-radius: 10px;
  padding: 10px 12px;
}

.scr-result-summary .scr-kpi h3 {
  margin: 0;
  font-size: 12px;
  line-height: 1.2;
  color: #667085;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.scr-kpi p {
  margin: 6px 0 0;
  font-size: 28px;
  line-height: 1;
  color: #101828;
  font-weight: 700;
  word-break: break-word;
}

.scr-kpi-wide {
  grid-column: span 1;
}

.scr-results-wrap {
  margin-top: 14px;
  border: 1px solid #d8e0ee;
  border-radius: 12px;
  background: #fff;
  overflow: hidden;
}

.scr-results-scroll {
  overflow: auto;
  max-height: 520px;
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scrollbar-color: #9aa8c0 #f8fafc;
}

.scr-results-scroll::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

.scr-results-scroll::-webkit-scrollbar-track {
  background: #f8fafc;
  border-left: 1px solid #e2e8f0;
  border-top: 1px solid #e2e8f0;
}

.scr-results-scroll::-webkit-scrollbar-thumb {
  background-color: #9aa8c0;
  border: 3px solid #f8fafc;
  border-radius: 999px;
}

.scr-results-scroll::-webkit-scrollbar-thumb:hover {
  background-color: #7f8ea9;
}

.scr-results-scroll::-webkit-scrollbar-corner {
  background: #f8fafc;
}

.scr-results-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
}

.scr-results-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  text-align: left;
  background: #f8fafc;
  color: #475569;
  font-size: 18px;
  font-weight: 700;
  padding: 12px 14px;
  border-bottom: 1px solid #d8e0ee;
  text-transform: none;
  letter-spacing: 0;
}

.scr-results-table tbody td {
  font-size: 16px;
  padding: 11px 14px;
  color: #0f172a;
  border-bottom: 1px solid #e2e8f0;
  white-space: nowrap;
  text-align: left;
}

.scr-results-table tbody tr:nth-child(even) td {
  background: #fcfdff;
}

.scr-results-table tbody tr:last-child td {
  border-bottom: 0;
}

.scr-results-table td:nth-child(1) {
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.scr-results-table td:nth-child(2),
.scr-results-table td:nth-child(3),
.scr-results-table td:nth-child(4) {
  font-variant-numeric: tabular-nums;
}

.scr-word-cell {
  cursor: help;
}

.scr-word-char-blank {
  color: #1b56c0;
}

.scr-word-cell:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.35);
  outline-offset: -2px;
}

.scr-definition-popover {
  position: fixed;
  z-index: 9999;
  max-width: min(360px, calc(100vw - 20px));
  border: 1px solid rgba(15, 23, 42, 0.24);
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.96);
  color: #f8fafc;
  padding: 10px 11px;
  box-shadow: 0 18px 34px -30px rgba(15, 23, 42, 0.7);
  font-size: 13px;
  line-height: 1.5;
  pointer-events: none;
}

.scr-definition-popover strong {
  display: block;
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #cbd5e1;
}

.scr-definition-popover > span {
  display: block;
}

.scr-definition-sections {
  display: grid;
  gap: 8px;
}

.scr-definition-section + .scr-definition-section {
  border-top: 1px solid rgba(203, 213, 225, 0.25);
  padding-top: 7px;
}

.scr-definition-section h4 {
  margin: 0 0 4px;
  font-size: 11px;
  line-height: 1.2;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #cbd5e1;
}

.scr-definition-section ul {
  margin: 0;
  padding-left: 16px;
}

.scr-definition-section li {
  margin: 0;
}

@media (max-width: 980px) {
  .scr-shell {
    width: calc(100% - 24px);
  }

  .scr-input-row {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .scr-btn-ghost {
    grid-column: 1 / -1;
  }

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

  .scr-result-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .scr-kpi-wide {
    grid-column: 1 / -1;
  }
}

@media (max-width: 620px) {
  .scr-shell {
    margin-top: 20px;
    margin-bottom: 42px;
  }

  .scr-input-row {
    grid-template-columns: 1fr;
  }

  .scr-btn {
    width: 100%;
  }

  .scr-advanced-grid {
    grid-template-columns: 1fr;
  }

  .scr-result-summary {
    grid-template-columns: 1fr;
  }

  .scr-results-table {
    min-width: 0;
    width: 100%;
    table-layout: fixed;
  }

  .scr-results-table th,
  .scr-results-table td {
    white-space: normal;
    overflow-wrap: anywhere;
  }
}