:root {
  color-scheme: dark;
  --bg: #0d1117;
  --panel: #141a22;
  --panel-strong: #19212c;
  --line: #2b3543;
  --text: #edf2f7;
  --muted: #a6b3c2;
  --soft: #7f8da0;
  --accent: #41d6b3;
  --accent-strong: #26b394;
  --warn: #f4c95d;
  --danger: #ef767a;
  --shadow: rgba(0, 0, 0, 0.35);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(65, 214, 179, 0.08), transparent 32rem),
    linear-gradient(180deg, #10161f 0%, var(--bg) 42%);
  color: var(--text);
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.brand-lockup {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.brand-logo {
  width: clamp(74px, 10vw, 118px);
  aspect-ratio: 1;
  border: 1px solid rgba(237, 242, 247, 0.18);
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.42);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 10px;
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.subtitle {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.6;
}

.guardrail,
.api-panel,
.case-panel,
.tool-nav,
.tool-panel,
.result-card,
.history-card {
  border: 1px solid var(--line);
  background: rgba(20, 26, 34, 0.86);
  box-shadow: 0 24px 70px var(--shadow);
}

.header-controls {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.language-control {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.language-toggle {
  display: grid;
  grid-template-columns: repeat(2, minmax(42px, 1fr));
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel-strong);
  padding: 4px;
  gap: 4px;
}

.language-option {
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  min-height: 30px;
  padding: 0 12px;
  font-weight: 800;
}

.language-option[aria-pressed="true"] {
  border-color: rgba(65, 214, 179, 0.72);
  background: rgba(65, 214, 179, 0.14);
  color: var(--accent);
  box-shadow: 0 0 18px rgba(65, 214, 179, 0.18);
}

.guardrail {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border-left: 4px solid var(--warn);
  border-radius: 8px;
  margin-bottom: 24px;
  padding: 14px 18px;
}

.guardrail-copy {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.guardrail h2 {
  flex: 0 0 auto;
  margin-bottom: 0;
  font-size: 1rem;
  white-space: nowrap;
}

.guardrail p {
  min-width: 0;
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.35;
}

.manual-button {
  flex: 0 0 auto;
  border: 1px solid rgba(65, 214, 179, 0.55);
  border-radius: 8px;
  background: rgba(65, 214, 179, 0.1);
  color: var(--accent);
  min-height: 40px;
  padding: 9px 14px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 800;
  white-space: nowrap;
}

.manual-button:hover {
  background: rgba(65, 214, 179, 0.16);
}

.api-panel {
  border-radius: 8px;
  margin-bottom: 24px;
  padding: 18px;
}

.api-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.api-heading h2 {
  margin-bottom: 0;
}

.api-status {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(15, 21, 29, 0.78);
  color: var(--muted);
  padding: 9px 12px;
  font-size: 0.86rem;
  white-space: nowrap;
}

.api-status.active {
  border-color: rgba(65, 214, 179, 0.55);
  color: var(--accent);
}

.api-grid {
  display: grid;
  grid-template-columns: minmax(130px, 0.25fr) minmax(180px, 0.3fr) minmax(280px, 1fr) auto;
  gap: 14px;
  align-items: end;
}

.mode-toggle {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #0f151d;
  color: var(--muted);
  padding: 0 12px 0 5px;
}

.mode-toggle[aria-pressed="true"] {
  border-color: rgba(65, 214, 179, 0.7);
  color: var(--accent);
}

.toggle-knob {
  position: relative;
  width: 44px;
  height: 28px;
  border-radius: 999px;
  background: rgba(127, 141, 160, 0.25);
}

.toggle-knob::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform 160ms ease, background 160ms ease;
}

.mode-toggle[aria-pressed="true"] .toggle-knob::after {
  transform: translateX(16px);
  background: var(--accent);
}

.api-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.api-note {
  margin: 12px 0 0;
  color: var(--soft);
  font-size: 0.86rem;
  line-height: 1.45;
}

.case-panel {
  border-radius: 8px;
  margin-bottom: 24px;
  padding: 18px;
}

.case-header,
.mini-card-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.case-header h2,
.mini-card-header h3 {
  margin-bottom: 0;
}

.case-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.case-subgrid {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: 14px;
  margin-top: 16px;
}

.mini-card {
  border: 1px solid rgba(92, 107, 125, 0.45);
  border-radius: 8px;
  background: rgba(25, 33, 44, 0.72);
  padding: 14px;
}

.progress-list,
.evidence-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.progress-item {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--muted);
  font-size: 0.86rem;
}

.progress-item.done {
  border-color: rgba(65, 214, 179, 0.55);
  color: var(--text);
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.evidence-grid input,
.evidence-grid textarea,
.evidence-grid select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0f151d;
  color: var(--text);
  padding: 10px 11px;
}

.evidence-grid textarea {
  grid-column: 1 / -1;
  min-height: 76px;
  resize: vertical;
}

.evidence-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(15, 21, 29, 0.78);
  padding: 10px;
}

.evidence-item strong {
  display: block;
  margin-bottom: 4px;
}

.evidence-item span,
.evidence-item p {
  color: var(--soft);
  font-size: 0.82rem;
}

.evidence-item p {
  margin: 6px 0 0;
  line-height: 1.45;
}

.validation-box {
  border: 1px solid rgba(244, 201, 93, 0.45);
  border-radius: 8px;
  margin-top: 16px;
  background: rgba(244, 201, 93, 0.08);
  padding: 12px 14px;
  color: var(--muted);
  line-height: 1.55;
}

.manual-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.manual-nav,
.manual-content {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(20, 26, 34, 0.86);
  box-shadow: 0 24px 70px var(--shadow);
}

.manual-nav {
  position: sticky;
  top: 20px;
  display: grid;
  gap: 6px;
  padding: 14px;
}

.manual-nav a {
  border-radius: 8px;
  color: var(--muted);
  padding: 10px 12px;
  text-decoration: none;
  font-size: 0.9rem;
}

.manual-nav a:hover {
  background: rgba(65, 214, 179, 0.08);
  color: var(--accent);
}

.manual-content {
  padding: 28px;
}

.manual-content section {
  border-bottom: 1px solid rgba(92, 107, 125, 0.35);
  padding: 0 0 26px;
  margin-bottom: 26px;
}

.manual-content section:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.manual-content h2 {
  color: var(--text);
  margin-bottom: 12px;
}

.manual-content h3 {
  margin-bottom: 8px;
}

.manual-content p,
.manual-content li {
  color: var(--muted);
  line-height: 1.65;
}

.manual-content code {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0f151d;
  color: var(--accent);
  padding: 2px 6px;
}

.manual-tool {
  border: 1px solid rgba(92, 107, 125, 0.45);
  border-radius: 8px;
  background: rgba(15, 21, 29, 0.55);
  margin: 12px 0;
  padding: 14px;
}

.manual-content table {
  border-collapse: collapse;
  width: 100%;
  margin: 12px 0 20px;
  font-size: 0.9rem;
}

.manual-content th,
.manual-content td {
  border: 1px solid var(--line);
  padding: 8px 12px;
  text-align: left;
  color: var(--muted);
}

.manual-content th {
  background: rgba(15, 21, 29, 0.7);
  color: var(--text);
  font-weight: 700;
}

.manual-content h3 {
  color: var(--text);
  font-size: 1rem;
  margin: 20px 0 8px;
}

.site-footer {
  display: grid;
  justify-items: center;
  gap: 8px;
  border-top: 1px solid rgba(92, 107, 125, 0.35);
  margin-top: 34px;
  padding: 24px 0 6px;
  text-align: center;
}

.site-footer a {
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.site-footer p {
  margin-bottom: 0;
  color: var(--soft);
  font-size: 0.88rem;
}

.workspace {
  display: grid;
  grid-template-columns: 310px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.tool-nav,
.tool-panel {
  border-radius: 8px;
}

.tool-nav {
  position: sticky;
  top: 20px;
  padding: 14px;
  background: rgba(42, 53, 67, 0.92);
  border-color: rgba(92, 107, 125, 0.72);
}

.tool-nav-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  padding: 8px 8px 14px;
  color: var(--text);
  font-weight: 700;
}

.tool-nav-header small {
  color: var(--soft);
  font-size: 0.76rem;
  font-weight: 600;
}

.tool-tabs {
  display: grid;
  gap: 8px;
}

.tab-button {
  width: 100%;
  min-height: 54px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  padding: 10px 12px;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.tab-button:hover {
  border-color: rgba(65, 214, 179, 0.35);
  background: rgba(65, 214, 179, 0.06);
  color: var(--text);
}

.tab-button[aria-selected="true"] {
  border-color: rgba(65, 214, 179, 0.7);
  background: rgba(65, 214, 179, 0.12);
  color: var(--text);
}

.tab-button span {
  display: block;
  color: var(--soft);
  font-size: 0.74rem;
  font-weight: 700;
}

.tab-button strong {
  display: block;
  margin-top: 3px;
  font-size: 0.92rem;
}

.tool-panel {
  padding: 24px;
}

.tool-heading {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.tool-heading h2 {
  margin-bottom: 8px;
  font-size: clamp(1.65rem, 4vw, 2.5rem);
  letter-spacing: 0;
}

.tool-heading p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.55;
}

.tool-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.icon-button,
.text-button,
.primary-button,
.secondary-button {
  border-radius: 8px;
  border: 1px solid var(--line);
  color: var(--text);
  background: var(--panel-strong);
  min-height: 40px;
  padding: 0 14px;
}

.icon-button:hover,
.text-button:hover,
.secondary-button:hover {
  border-color: rgba(65, 214, 179, 0.6);
}

.primary-button {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
  color: #06120f;
  font-weight: 800;
}

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

.tool-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

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

.form-field.full {
  grid-column: 1 / -1;
}

.form-field label {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
}

.form-field small {
  color: var(--soft);
  line-height: 1.45;
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0f151d;
  color: var(--text);
  padding: 12px 13px;
  outline: none;
}

.form-field textarea {
  min-height: 118px;
  resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(65, 214, 179, 0.12);
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.result-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  gap: 18px;
}

.result-card,
.history-card {
  border-radius: 8px;
  overflow: hidden;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid var(--line);
  padding: 14px 16px;
}

.result-header h3 {
  margin-bottom: 0;
  font-size: 1rem;
}

.result-header span {
  color: var(--soft);
  font-size: 0.82rem;
}

pre {
  min-height: 460px;
  max-height: 620px;
  margin: 0;
  overflow: auto;
  padding: 18px;
  color: #dce6ef;
  white-space: pre-wrap;
  word-wrap: break-word;
  line-height: 1.55;
}

.history-list {
  display: grid;
  gap: 10px;
  max-height: 620px;
  overflow: auto;
  padding: 14px;
}

.history-empty {
  color: var(--soft);
  font-size: 0.92rem;
  line-height: 1.5;
}

.history-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(15, 21, 29, 0.78);
  padding: 12px;
}

.history-item button {
  width: 100%;
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0;
  text-align: left;
}

.history-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.9rem;
}

.history-item span {
  color: var(--soft);
  font-size: 0.78rem;
}

@media (max-width: 980px) {
  .app-shell {
    padding: 18px;
  }

  .topbar,
  .brand-lockup,
  .tool-heading {
    flex-direction: column;
  }

  .header-controls {
    justify-content: flex-start;
  }

  .workspace,
  .result-layout,
  .case-grid,
  .case-subgrid,
  .api-grid,
  .manual-layout {
    grid-template-columns: 1fr;
  }

  .manual-nav {
    position: static;
  }

  .guardrail {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .guardrail-copy {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .case-header {
    flex-direction: column;
  }

  .case-actions,
  .api-actions {
    justify-content: flex-start;
  }

  .api-heading {
    flex-direction: column;
  }

  .tool-nav {
    position: static;
  }

  .tool-form {
    grid-template-columns: 1fr;
  }

  pre {
    min-height: 360px;
  }
}

@media (max-width: 560px) {
  .app-shell {
    padding: 12px;
  }

  .tool-panel {
    padding: 16px;
  }

  .tool-actions,
  .form-actions {
    width: 100%;
  }

  .icon-button,
  .text-button,
  .primary-button,
  .secondary-button {
    flex: 1;
  }
}