:root {
  --color-bg: #090b10;
  --color-surface: #121722;
  --color-surface-strong: #1a2230;
  --color-border: #2b3445;
  --color-text: #f4f7fb;
  --color-muted: #9aa7ba;
  --color-accent: #36c5f0;
  --color-danger: #ff6b7a;
  --radius: 8px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
  --focus: 0 0 0 3px rgba(54, 197, 240, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  min-height: 100vh;
  margin: 0;
}

button,
input {
  font: inherit;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.field input {
  width: 100%;
  min-height: 44px;
  color: var(--color-text);
  background: var(--color-surface-strong);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px 12px;
}

.field input:focus {
  border-color: var(--color-accent);
  box-shadow: var(--focus);
  outline: none;
}

.button {
  min-height: 44px;
  color: #031018;
  background: var(--color-accent);
  border: 0;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}

.button:focus-visible {
  box-shadow: var(--focus);
  outline: none;
}

.form-error {
  color: var(--color-danger);
  margin: 0;
}

.app-header {
  min-height: 64px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 0 28px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.app-brand,
.app-nav a {
  color: var(--color-text);
  text-decoration: none;
}

.app-brand {
  color: var(--color-accent);
  font-size: 1.1rem;
  font-weight: 800;
}

.app-page-title {
  color: var(--color-text);
  font-size: 1.2rem;
  font-weight: 800;
}

.app-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
}

.app-nav form {
  margin: 0;
}

.app-nav a {
  color: var(--color-muted);
  font-weight: 700;
}

.app-nav button {
  color: var(--color-muted);
  background: none;
  border: 0;
  padding: 0;
  font-weight: 700;
  cursor: pointer;
}

.page-shell {
  width: min(100%, 1600px);
  margin: 0 auto;
  padding: 32px 28px;
}

.page-title {
  margin: 0;
  font-size: 1.8rem;
  line-height: 1.2;
}

.page-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: start;
  gap: 24px;
}

.document-column {
  display: grid;
  gap: 24px;
}

.panel {
  min-height: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px;
}

.panel-header {
  margin-bottom: 18px;
  font-weight: 800;
}

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

.dropzone {
  min-height: 160px;
  display: grid;
  place-items: center;
  gap: 6px;
  color: var(--color-muted);
  background: var(--color-surface-strong);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  cursor: pointer;
}

.dropzone input {
  width: 100%;
}

.dropzone span {
  color: var(--color-text);
  font-weight: 800;
}

.dropzone.is-dragover {
  border-color: var(--color-accent);
  box-shadow: var(--focus);
}

.document-list {
  display: grid;
  gap: 10px;
}

.document-list-title {
  font-weight: 800;
}

.document-list-panel {
  min-height: auto;
}

.document-list ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.document-list li,
.document-list p {
  color: var(--color-muted);
  margin: 0;
  overflow-wrap: anywhere;
}

.document-choice {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.scan-form {
  display: grid;
  gap: 14px;
}

.structured-result {
  margin: 0;
  padding: 0;
  list-style: none;
}

.structured-result li {
  display: grid;
  grid-template-columns: 64px minmax(220px, 1fr) 24px minmax(120px, 1fr);
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
}

.result-code {
  color: var(--color-accent);
  font-weight: 800;
}

.result-label,
.result-arrow {
  color: var(--color-muted);
}

.result-value {
  color: var(--color-text);
  overflow-wrap: anywhere;
}

.structured-result li.is-low-confidence span {
  color: var(--color-danger);
}

.status-message {
  color: var(--color-accent);
  margin: 0;
}

.status-muted {
  color: var(--color-muted);
  margin: 0;
}

.message-box {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 20;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
  font-weight: 800;
}

@media (max-width: 760px) {
  .page-grid {
    grid-template-columns: 1fr;
  }
}