.model-page-head {
  max-width: 1180px;
}

.model-page-head .lead {
  max-width: 780px;
}

.model-status-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.model-status-card {
  position: relative;
  min-height: 190px;
  padding: 22px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(248, 244, 237, 0.84);
  overflow: hidden;
}

.model-status-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  background: var(--muted);
  opacity: 0.28;
}

.model-status-card[data-tone="success"]::after {
  background: #526a50;
  opacity: 1;
}

.model-status-card[data-tone="warning"]::after,
.model-status-card[data-tone="loading"]::after {
  background: var(--copper);
  opacity: 1;
}

.model-status-card[data-tone="error"]::after {
  background: var(--wine);
  opacity: 1;
}

.model-status-index {
  color: var(--copper);
  font: 400 20px/1 var(--serif);
}

.model-status-card small,
.model-status-card strong {
  display: block;
}

.model-status-card small {
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.model-status-card strong {
  margin-bottom: 12px;
  font: 400 clamp(24px, 2.6vw, 38px)/1.05 var(--serif);
  letter-spacing: -0.03em;
}

.model-status-card p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}

.model-center-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(300px, 0.58fr);
  gap: 0;
  margin-top: 28px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.model-setup {
  min-width: 0;
  border-right: 1px solid var(--line);
  background: rgba(248, 244, 237, 0.88);
}

.model-section-heading {
  padding: clamp(28px, 4vw, 52px);
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 28px;
  border-bottom: 1px solid var(--line);
}

.model-section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(40px, 4.8vw, 66px);
}

.model-config-summary {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.setup-step {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.setup-step-number {
  padding: 28px 18px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font: 400 34px/1 var(--serif);
  transition: color 0.28s ease, background 0.28s ease;
}

.setup-step.is-complete .setup-step-number {
  color: var(--paper-light);
  background: var(--wine);
}

.setup-step-content {
  min-width: 0;
  padding: 30px clamp(24px, 4vw, 48px) 38px;
}

.setup-step-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 28px;
}

.setup-step-head h3 {
  margin-bottom: 8px;
  font: 400 clamp(26px, 3vw, 40px)/1.15 var(--serif);
  letter-spacing: -0.03em;
}

.setup-step-head p {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.72;
}

.connection-badge,
.step-state,
.engine-state-badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.connection-badge i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.connection-badge[data-tone="success"] {
  color: #526a50;
  border-color: rgba(82, 106, 80, 0.38);
}

.connection-badge[data-tone="warning"],
.connection-badge[data-tone="loading"] {
  color: var(--warn);
  border-color: rgba(122, 77, 33, 0.35);
}

.connection-badge[data-tone="error"] {
  color: var(--wine);
  border-color: rgba(91, 24, 32, 0.36);
}

.gateway-address-line {
  margin-top: 24px;
  padding: 17px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.gateway-address-line span {
  min-width: 0;
}

.gateway-address-line small,
.gateway-address-line strong {
  display: block;
}

.gateway-address-line small {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 8px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.gateway-address-line strong {
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--ink-soft);
  font: 400 14px/1.4 var(--sans);
  white-space: nowrap;
}

.inline-guidance {
  margin: 16px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--copper);
  color: var(--muted);
  background: rgba(177, 138, 85, 0.08);
  font-size: 12px;
  line-height: 1.65;
}

.provider-list {
  margin-top: 24px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.provider-row {
  position: relative;
  min-height: 88px;
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto 24px;
  gap: 16px;
  align-items: center;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: color 0.24s ease, background 0.24s ease;
}

.provider-row:hover {
  background: rgba(18, 17, 15, 0.035);
}

.provider-row:has(input:checked) {
  color: var(--paper-light);
  background: var(--wine);
}

.provider-row input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.provider-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid currentColor;
  color: var(--wine);
  font: 700 10px/1 var(--sans);
  letter-spacing: 0.08em;
}

.provider-row:has(input:checked) .provider-mark {
  color: var(--paper-light);
}

.provider-identity {
  min-width: 0;
}

.provider-identity strong,
.provider-identity code {
  display: block;
}

.provider-identity strong {
  margin-bottom: 6px;
  font-size: 14px;
}

.provider-identity code {
  overflow: hidden;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.provider-row:has(input:checked) .provider-identity code,
.provider-row:has(input:checked) .provider-ready {
  color: rgba(248, 244, 237, 0.68);
}

.provider-ready {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #526a50;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.provider-ready i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.provider-select-indicator {
  color: var(--copper);
  font-size: 20px;
}

.provider-row:has(input:checked) .provider-select-indicator {
  color: var(--paper-light);
}

.provider-row:has(input:checked) .provider-select-indicator::before {
  content: "●";
}

.provider-row:has(input:checked) .provider-select-indicator {
  font-size: 0;
}

.provider-row:has(input:checked) .provider-select-indicator::before {
  font-size: 16px;
}

.provider-empty {
  margin-top: 24px;
  min-height: 150px;
  padding: 26px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  align-items: center;
  border: 1px solid var(--line);
  background: rgba(18, 17, 15, 0.025);
}

.provider-empty-mark {
  color: var(--wine);
  font: 400 58px/1 var(--serif);
}

.provider-empty strong {
  display: block;
  margin-bottom: 8px;
  font: 400 25px/1.2 var(--serif);
}

.provider-empty p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

.provider-loading {
  grid-template-columns: auto 1fr;
}

.provider-loading > i {
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-top-color: var(--wine);
  border-radius: 50%;
  animation: provider-spin 0.9s linear infinite;
}

.model-enable-row {
  margin-top: 24px;
  padding: 20px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: center;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: color 0.24s ease, background 0.24s ease;
}

.model-enable-row > input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.model-enable-row > span:last-child strong,
.model-enable-row > span:last-child small {
  display: block;
}

.model-enable-row > span:last-child small {
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.model-enable-control {
  width: 48px;
  height: 25px;
  padding: 3px;
  border: 1px solid var(--line);
  background: rgba(18, 17, 15, 0.06);
}

.model-enable-control i {
  display: block;
  width: 17px;
  height: 17px;
  background: var(--muted);
  transition: transform 0.28s cubic-bezier(0.2, 0.72, 0.2, 1), background 0.28s ease;
}

.model-enable-row:has(input:checked) {
  color: var(--paper-light);
  background: var(--wine);
}

.model-enable-row:has(input:checked) .model-enable-control {
  border-color: rgba(248, 244, 237, 0.42);
  background: rgba(248, 244, 237, 0.12);
}

.model-enable-row:has(input:checked) .model-enable-control i {
  transform: translateX(23px);
  background: var(--paper-light);
}

.model-enable-row:has(input:checked) > span:last-child small {
  color: rgba(248, 244, 237, 0.7);
}

.model-enable-row.is-disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

.model-test-result {
  margin-top: 14px;
  padding: 16px;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 14px;
  align-items: center;
  border: 1px solid var(--line);
  background: rgba(18, 17, 15, 0.025);
}

.model-test-icon {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  color: var(--copper);
  font: 400 17px/1 var(--serif);
}

.model-test-result strong,
.model-test-result p {
  display: block;
}

.model-test-result strong {
  margin-bottom: 5px;
  font-size: 12px;
}

.model-test-result p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.model-test-result[data-state="success"] {
  border-color: rgba(82, 106, 80, 0.38);
  background: rgba(82, 106, 80, 0.06);
}

.model-test-result[data-state="success"] .model-test-icon {
  color: #526a50;
  border-color: rgba(82, 106, 80, 0.42);
}

.model-test-result[data-state="error"] {
  border-color: rgba(91, 24, 32, 0.35);
  background: rgba(91, 24, 32, 0.055);
}

.model-test-result[data-state="error"] .model-test-icon {
  color: var(--wine);
  border-color: rgba(91, 24, 32, 0.4);
}

.model-test-result[data-state="loading"] .model-test-icon {
  animation: test-pulse 1.2s ease-in-out infinite;
}

.model-step-actions {
  margin-top: 20px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.advanced-settings {
  border-bottom: 1px solid var(--line);
}

.advanced-settings summary {
  padding: 22px clamp(24px, 4vw, 48px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  cursor: pointer;
  list-style: none;
  background: var(--paper-deep);
}

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

.advanced-settings summary small,
.advanced-settings summary strong {
  display: block;
}

.advanced-settings summary small {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 8px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.advanced-settings summary strong {
  font: 400 21px/1.2 var(--serif);
}

.advanced-settings summary b {
  font-size: 22px;
  font-weight: 400;
  transition: transform 0.28s ease;
}

.advanced-settings[open] summary b {
  transform: rotate(45deg);
}

.advanced-settings-body {
  padding: 30px clamp(24px, 4vw, 48px) 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  border-top: 1px solid var(--line);
}

.advanced-note {
  grid-column: 1 / -1;
  padding: 17px 18px;
  border-left: 2px solid var(--wine);
  background: rgba(91, 24, 32, 0.05);
}

.advanced-note strong {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
}

.advanced-note p {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}

.model-explainer {
  min-width: 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--paper-light);
  background: var(--wine-dark);
}

.model-explainer-sticky {
  position: sticky;
  top: 112px;
  padding: clamp(30px, 4vw, 52px);
}

.model-explainer .eyebrow {
  color: var(--copper);
}

.model-explainer h2 {
  margin-bottom: 34px;
  font-size: clamp(38px, 4.2vw, 58px);
}

.gateway-flow {
  display: grid;
  gap: 0;
}

.gateway-flow-node {
  padding: 18px;
  display: grid;
  grid-template-columns: 34px 1fr;
  column-gap: 12px;
  border: 1px solid rgba(248, 244, 237, 0.2);
  background: rgba(248, 244, 237, 0.035);
}

.gateway-flow-node.is-gateway {
  border-color: rgba(177, 138, 85, 0.62);
  background: rgba(177, 138, 85, 0.1);
}

.gateway-flow-node span {
  grid-row: 1 / 3;
  color: var(--copper);
  font: 400 20px/1 var(--serif);
}

.gateway-flow-node strong {
  font-size: 13px;
}

.gateway-flow-node p {
  margin: 6px 0 0;
  color: rgba(248, 244, 237, 0.62);
  font-size: 11px;
  line-height: 1.55;
}

.gateway-flow-arrow {
  min-height: 62px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  color: var(--copper);
  font-family: var(--serif);
}

.gateway-flow-arrow small {
  color: rgba(248, 244, 237, 0.45);
  font: 700 8px/1.4 var(--sans);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.data-boundary-compact {
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid rgba(248, 244, 237, 0.2);
}

.data-boundary-compact h3 {
  margin: 20px 0 7px;
  color: var(--copper);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.data-boundary-compact p {
  margin: 0;
  color: rgba(248, 244, 237, 0.62);
  font-size: 11px;
  line-height: 1.65;
}

.ai-engine-panel {
  margin: 0 0 22px;
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid var(--line);
  background: rgba(248, 244, 237, 0.88);
  box-shadow: var(--shadow);
}

.engine-panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
}

.ai-engine-panel h2 {
  margin-bottom: 10px;
  font-family: var(--serif);
  font-size: clamp(38px, 4vw, 56px);
}

.engine-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 26px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.engine-option {
  position: relative;
}

.engine-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.engine-option span {
  min-height: 170px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}

.engine-option b {
  margin-bottom: auto;
  color: var(--copper);
  font: 400 24px/1 var(--serif);
}

.engine-option strong,
.engine-option small {
  display: block;
}

.engine-option strong {
  margin-bottom: 8px;
  font: 400 24px/1.2 var(--serif);
}

.engine-option small {
  color: var(--muted);
  line-height: 1.55;
}

.engine-option input:checked + span {
  color: var(--paper-light);
  background: var(--wine);
}

.engine-option input:checked + span b {
  color: var(--paper-light);
}

.engine-option input:checked + span small {
  color: rgba(248, 244, 237, 0.7);
}

.engine-option.disabled span {
  cursor: not-allowed;
  opacity: 0.5;
}

.ai-engine-footer {
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 18px;
}

.ai-engine-footer label {
  flex: 1;
  color: var(--ink-soft);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ai-engine-footer select {
  margin-top: 8px;
}

.ai-notice {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 80;
  max-width: min(680px, calc(100% - 28px));
  padding: 14px 18px;
  border: 1px solid rgba(248, 244, 237, 0.2);
  color: var(--paper-light);
  background: var(--ink);
  box-shadow: 0 18px 60px rgba(18, 17, 15, 0.32);
  opacity: 0;
  transform: translate(-50%, 18px);
  pointer-events: none;
  text-align: center;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.ai-notice.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.ai-notice[data-type="success"] {
  background: #364a38;
}

.ai-notice[data-type="warning"] {
  background: var(--warn);
}

@keyframes provider-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes test-pulse {
  0%,
  100% {
    opacity: 0.55;
  }
  50% {
    opacity: 1;
  }
}

@media (max-width: 1080px) {
  .model-status-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .model-center-layout {
    grid-template-columns: 1fr;
  }

  .model-explainer {
    border-top: 0;
  }

  .model-explainer-sticky {
    position: static;
  }

  .gateway-flow {
    grid-template-columns: 1fr 72px 1fr 72px 1fr;
    align-items: stretch;
  }

  .gateway-flow-arrow {
    min-height: auto;
    transform: rotate(-90deg);
  }

  .gateway-flow-arrow small {
    display: none;
  }
}

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

  .model-status-card {
    min-height: 142px;
  }

  .model-section-heading,
  .setup-step-head,
  .engine-panel-heading,
  .gateway-address-line,
  .model-step-actions,
  .ai-engine-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .model-section-heading {
    display: flex;
  }

  .setup-step {
    grid-template-columns: 58px minmax(0, 1fr);
  }

  .setup-step-number {
    padding: 24px 10px;
    font-size: 25px;
  }

  .setup-step-content {
    padding: 24px 18px 30px;
  }

  .connection-badge,
  .step-state,
  .engine-state-badge {
    width: max-content;
  }

  .gateway-address-line strong {
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .provider-row {
    grid-template-columns: 42px minmax(0, 1fr) 22px;
  }

  .provider-ready {
    display: none;
  }

  .advanced-settings-body,
  .engine-options {
    grid-template-columns: 1fr;
  }

  .gateway-flow {
    grid-template-columns: 1fr;
  }

  .gateway-flow-arrow {
    min-height: 54px;
    transform: none;
  }

  .gateway-flow-arrow small {
    display: block;
  }

  .model-step-actions .primary,
  .model-step-actions .ghost {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .model-status-card {
    padding: 18px;
  }

  .provider-row {
    min-height: 82px;
    padding: 12px;
    gap: 12px;
  }

  .provider-mark {
    width: 38px;
    height: 38px;
  }

  .model-enable-row {
    grid-template-columns: 1fr;
  }

  .model-enable-control {
    margin-bottom: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .provider-loading > i,
  .model-test-result[data-state="loading"] .model-test-icon {
    animation: none;
  }
}