:root {
  --bg: #f7f3ec;
  --panel: #fffaf2;
  --ink: #22201c;
  --muted: #6f675d;
  --line: #ded3c2;
  --accent: #176b62;
  --accent-strong: #0f524b;
  --danger: #b54132;
  --success-bg: #e9f4ee;
  --warning-bg: #fff4dc;
  --danger-bg: #f9e8e3;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--ink);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background: var(--bg);
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  display: grid;
  min-height: 100vh;
  align-items: start;
  justify-items: center;
  padding: 40px 18px;
}

.upload-panel {
  width: min(100%, 760px);
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.eyebrow {
  margin: 0;
  color: var(--accent-strong);
  font-size: 0.875rem;
  font-weight: 700;
}

.intro-block {
  display: grid;
  gap: 10px;
  margin-bottom: 26px;
}

.product-version {
  margin: 0;
  color: var(--accent-strong);
  font-size: 0.875rem;
  font-weight: 800;
  line-height: 1.35;
}

h1 {
  margin: 0;
  font-size: 3rem;
  line-height: 1.05;
}

.lead {
  max-width: 100%;
  margin: 0;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.6;
}

.upload-form {
  display: grid;
  gap: 16px;
}

.drop-zone {
  display: grid;
  gap: 18px;
  min-height: 172px;
  align-content: center;
  justify-items: center;
  padding: 28px;
  border: 2px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: #fffdf9;
  cursor: pointer;
  transition:
    border-color 160ms ease,
    background 160ms ease,
    color 160ms ease;
}

.drop-zone:hover,
.drop-zone:focus-within,
.drop-zone[data-active="true"] {
  border-color: var(--accent);
  color: var(--accent-strong);
  background: #f1faf6;
}

.drop-zone[data-has-file="true"] {
  align-content: start;
  gap: 20px;
  border-style: solid;
  color: var(--accent-strong);
  background: #f1faf6;
}

.drop-zone input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.drop-message {
  display: grid;
  gap: 8px;
  justify-items: center;
  text-align: center;
}

.drop-title {
  font-size: 1.18rem;
  line-height: 1.35;
  font-weight: 800;
}

.drop-detail {
  font-size: 1rem;
  line-height: 1.45;
  text-align: center;
}

.drop-file-summary {
  width: min(100%, 520px);
  margin-top: 0;
  padding-top: 16px;
  border-top: 1px solid rgba(23, 107, 98, 0.16);
}

.status {
  min-height: 52px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: #fffdf9;
  font-size: 1rem;
  line-height: 1.45;
}

.status[hidden] {
  display: none;
}

.status[data-state="success"] {
  border-color: rgba(23, 107, 98, 0.35);
  color: var(--accent-strong);
  background: var(--success-bg);
}

.status[data-state="pending"] {
  border-color: rgba(23, 107, 98, 0.26);
  color: var(--accent-strong);
  background: #f1faf6;
}

.status[data-state="warning"] {
  border-color: rgba(181, 112, 32, 0.38);
  color: #7a4a14;
  background: var(--warning-bg);
}

.status[data-state="error"] {
  border-color: rgba(181, 65, 50, 0.35);
  color: var(--danger);
  background: var(--danger-bg);
}

.size-warning {
  min-height: 0;
  padding: 0 0 0 12px;
  border: 0;
  border-left: 3px solid rgba(181, 112, 32, 0.42);
  border-radius: 0;
  color: #7a4a14;
  background: transparent;
  font-weight: 700;
}

.file-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content max-content;
  gap: 16px 28px;
  margin: 0;
  text-align: left;
}

.file-summary[hidden] {
  display: none;
}

.file-summary div {
  min-width: 0;
  padding: 0;
}

.file-summary dt {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 700;
}

.file-summary dd {
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 800;
}

.diagnosis-results {
  display: grid;
  gap: 18px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.diagnosis-results[hidden] {
  display: none;
}

.section-heading {
  display: grid;
  gap: 8px;
}

.section-subheading {
  display: grid;
  gap: 6px;
}

.section-heading .eyebrow {
  margin: 0;
}

h2,
h3 {
  margin: 0;
  line-height: 1.25;
}

h2 {
  font-size: 1.45rem;
}

h3 {
  color: var(--ink);
  font-size: 1rem;
}

.diagnosis-block {
  display: grid;
  gap: 10px;
}

.replacement-panel {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.download-panel {
  gap: 14px;
}

.replacement-rule-builder {
  display: grid;
  gap: 16px;
}

.local-font-panel {
  display: grid;
  gap: 10px 12px;
  position: relative;
}

.local-font-panel[hidden] {
  display: none;
}

.local-font-panel .field-helper {
  margin: 0;
}

.size-confirmation {
  padding: 12px 14px;
  border: 1px solid rgba(181, 112, 32, 0.38);
  border-radius: 8px;
  color: #7a4a14;
  background: var(--warning-bg);
}

.size-confirmation[hidden] {
  display: none;
}

.size-confirmation label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.45;
}

.size-confirmation input {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  accent-color: var(--accent);
  flex: 0 0 auto;
}

.replacement-controls {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
  gap: 18px;
}

.replacement-controls > label,
.target-font-control {
  display: grid;
  gap: 10px;
  color: var(--accent-strong);
  font-size: 1rem;
  font-weight: 800;
}

.control-label {
  color: var(--accent-strong);
}

.font-input-mode {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
}

.font-input-mode label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 1rem;
}

.font-input-mode input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.field-helper {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.field-helper[data-state="success"] {
  color: var(--accent-strong);
}

.field-helper[data-state="pending"] {
  color: var(--accent-strong);
}

.field-helper[data-state="error"] {
  color: var(--danger);
}

.replacement-controls select,
.replacement-controls input {
  min-width: 0;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fffdf9;
}

.replacement-controls select[hidden],
.replacement-controls input[hidden] {
  display: none;
}

.replacement-controls select:disabled,
.replacement-controls input:disabled {
  color: var(--muted);
  background: #f4eee4;
}

.replacement-controls .font-input-mode input {
  min-width: auto;
  min-height: auto;
  padding: 0;
  border: 0;
  background: transparent;
}

.replacement-controls > button,
.replacement-action-row > button,
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.replacement-controls > button,
.replacement-action-row > button {
  min-height: 46px;
  padding: 12px 16px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: #fff;
  background: var(--accent);
  cursor: pointer;
  font-weight: 800;
}

.action-row button {
  min-height: 46px;
  padding: 12px 16px;
  border: 1px solid rgba(23, 107, 98, 0.42);
  border-radius: 8px;
  color: var(--accent-strong);
  background: #fffdf9;
  cursor: pointer;
  font-weight: 800;
}

.replacement-controls > button {
  justify-self: start;
}

.replacement-controls > button,
.replacement-action-row > button {
  justify-self: start;
  min-width: 160px;
  justify-content: center;
}

.action-row .download-button {
  flex: 1 1 280px;
  min-height: 64px;
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
  font-size: 1.08rem;
}

.replacement-controls > button:hover:not(:disabled),
.replacement-controls > button:focus-visible:not(:disabled),
.replacement-action-row > button:hover:not(:disabled),
.replacement-action-row > button:focus-visible:not(:disabled) {
  background: var(--accent-strong);
}

.action-row button:hover:not(:disabled),
.action-row button:focus-visible:not(:disabled) {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.action-row .download-button:hover:not(:disabled),
.action-row .download-button:focus-visible:not(:disabled) {
  background: var(--accent-strong);
}

.replacement-controls > button:disabled,
.replacement-action-row > button:disabled,
.action-row button:disabled {
  border-color: var(--line);
  color: var(--muted);
  background: #f4eee4;
  cursor: not-allowed;
}

.replacement-action-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 10px 12px;
}

.replacement-action-row > button,
.replacement-status {
  flex: 1 1 100%;
  width: 100%;
}

.replacement-rule-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  list-style: none;
  overflow: hidden;
}

.replacement-rule-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
  min-height: 44px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(222, 211, 194, 0.78);
  color: var(--muted);
  background: #fff;
}

.replacement-rule-list li:last-child {
  border-bottom: 0;
}

.replacement-rule-list .empty-state {
  display: block;
  color: var(--muted);
  font-weight: 600;
}

.replacement-rule-content {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.replacement-rule-list li > span,
.replacement-rule-title {
  min-width: 0;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.replacement-rule-effective,
.replacement-rule-impact {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 400;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.replacement-rule-effective {
  color: var(--accent-strong);
}

.replacement-rule-list strong {
  color: var(--ink);
}

.replacement-rule-list button {
  min-width: 40px;
  min-height: 32px;
  border: 1px solid rgba(181, 65, 50, 0.35);
  border-radius: 8px;
  color: var(--danger);
  background: #fffdf9;
  cursor: pointer;
  font-weight: 800;
}

.replacement-rule-list button:hover,
.replacement-rule-list button:focus-visible {
  background: var(--danger-bg);
}

.replacement-rule-list button:disabled {
  color: var(--muted);
  background: #f4eee4;
  cursor: not-allowed;
}

.replacement-impact-summary {
  margin: 0;
  color: var(--accent-strong);
  font-weight: 400;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.replacement-impact-summary[hidden] {
  display: none;
}

.replacement-warning-list {
  margin-top: 2px;
}

.replacement-status {
  display: inline-flex;
  align-items: center;
  width: auto;
  max-width: 100%;
  min-height: 0;
  padding: 0;
  border: 0;
  color: var(--muted);
  background: transparent;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.4;
}

.replacement-status[data-state="success"],
.replacement-status[data-state="pending"] {
  color: var(--accent-strong);
  background: transparent;
}

.replacement-status[data-state="error"] {
  color: var(--danger);
  background: transparent;
}

.replacement-status[hidden] {
  display: none;
}

.result-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.plain-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.5;
}

.plain-list[hidden],
.user-checklist-section[hidden] {
  display: none;
}

.plain-list li::marker {
  color: var(--accent);
}

.font-selection-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
}

.font-selection-actions button {
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid rgba(23, 107, 98, 0.42);
  border-radius: 8px;
  color: var(--accent-strong);
  background: #fffdf9;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 800;
}

.font-selection-actions button:hover:not(:disabled),
.font-selection-actions button:focus-visible:not(:disabled) {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.font-selection-actions button:disabled {
  border-color: var(--line);
  color: var(--muted);
  background: #f4eee4;
  cursor: not-allowed;
}

.font-selection-actions .field-helper {
  flex: 1 1 240px;
}

.font-result-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  list-style: none;
  overflow: hidden;
}

.font-result-list li {
  display: grid;
  min-width: 0;
  padding: 0;
  border-bottom: 1px solid rgba(222, 211, 194, 0.78);
  background: #fff;
}

.font-result-list li:last-child {
  border-bottom: 0;
}

.font-result-list li[data-state="added"] {
  background: #fbf7ef;
  color: var(--muted);
}

.font-choice {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  min-height: 58px;
  padding: 14px 16px;
  cursor: pointer;
}

.font-choice input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--accent);
}

.font-choice:has(input:disabled) {
  cursor: not-allowed;
}

.font-result-content {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.font-result-main {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.font-result-name {
  min-width: 0;
  color: var(--ink);
  font-weight: 800;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.font-result-note {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  min-height: 22px;
  padding: 3px 7px;
  border: 1px solid rgba(111, 103, 93, 0.24);
  border-radius: 999px;
  color: var(--muted);
  background: #fffdf9;
  font-size: 0.875rem;
  line-height: 1.2;
  white-space: nowrap;
}

.font-result-meta {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.font-result-warning {
  padding-left: 10px;
  border-left: 3px solid rgba(181, 112, 32, 0.42);
  color: #7a4a14;
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.location-summary {
  display: grid;
  gap: 8px;
  margin: 0;
}

.location-summary div {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(222, 211, 194, 0.78);
}

.location-summary div:last-child {
  border-bottom: 0;
}

.location-summary dt {
  color: var(--accent-strong);
  font-size: 0.875rem;
  font-weight: 800;
}

.location-summary dd {
  margin: 0;
  color: var(--muted);
  overflow-wrap: anywhere;
  line-height: 1.5;
}

@media (max-width: 560px) {
  .app-shell {
    align-items: start;
    padding-top: 18px;
  }

  .upload-panel {
    padding: 22px;
  }

  h1 {
    font-size: 2.3rem;
  }

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

  .replacement-controls {
    grid-template-columns: 1fr;
  }

  .replacement-controls > button {
    width: 100%;
  }

  .replacement-action-row > button,
  .replacement-status {
    width: 100%;
  }

  .font-selection-actions button,
  .action-row button {
    width: 100%;
  }

  .location-summary div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}