:root {
  --bg: #eef2f6;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-solid: #ffffff;
  --ink: #17202a;
  --muted: #5c6b7c;
  --line: #d6dee8;
  --brand: #0f766e;
  --brand-strong: #0a5f59;
  --blue: #2563eb;
  --accent: #b45309;
  --danger: #b91c1c;
  --shadow: 0 18px 45px rgba(24, 39, 75, 0.14);
  --soft-shadow: 0 10px 24px rgba(24, 39, 75, 0.1);
}

body.dark {
  --bg: #111827;
  --surface: rgba(31, 41, 55, 0.88);
  --surface-solid: #1f2937;
  --ink: #eef2f7;
  --muted: #aeb9c7;
  --line: #374151;
  --brand: #2dd4bf;
  --brand-strong: #14b8a6;
  --blue: #60a5fa;
  --accent: #fbbf24;
  --danger: #fb7185;
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.32);
  --soft-shadow: 0 10px 24px rgba(0, 0, 0, 0.24);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 8%, rgba(37, 99, 235, 0.14), transparent 26%),
    linear-gradient(135deg, #eef2f6 0%, #f8fafc 46%, #e8edf3 100%);
  color: var(--ink);
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
}

body.auth-locked {
  overflow: hidden;
}

body.dark {
  background:
    radial-gradient(circle at 12% 8%, rgba(45, 212, 191, 0.12), transparent 26%),
  linear-gradient(135deg, #101827 0%, #111827 48%, #182033 100%);
}

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

.auth-screen {
  align-items: center;
  background: rgba(15, 23, 42, 0.38);
  backdrop-filter: blur(2px);
  display: grid;
  height: 100vh;
  inset: 0;
  min-height: 100vh;
  overflow: auto;
  padding: 24px;
  place-items: center;
  position: fixed;
  width: 100vw;
  z-index: 50;
}

.auth-panel {
  background: var(--surface-solid);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.3);
  display: grid;
  gap: 16px;
  left: auto;
  max-width: 420px;
  padding: 28px;
  position: relative;
  top: auto;
  width: min(100%, 420px);
}

.auth-brand {
  align-items: center;
  background: #0f172a;
  border-radius: 14px;
  color: #ffffff;
  display: grid;
  font-size: 15px;
  font-weight: 900;
  height: 52px;
  letter-spacing: 0;
  place-items: center;
  width: 52px;
}

.auth-panel h1 {
  font-size: 28px;
}

.auth-error {
  color: var(--danger);
  font-weight: 700;
  margin: 0;
  min-height: 20px;
}

body:not(.auth-locked) .auth-screen {
  display: none;
}

body.auth-locked .app-shell {
  filter: blur(7px);
  pointer-events: none;
  transform: scale(0.995);
  user-select: none;
}

.app-shell {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr) minmax(380px, 42vw);
  min-height: 100vh;
}

.rail {
  align-items: center;
  background: rgba(15, 23, 42, 0.94);
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 10px;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 5;
}

.brand-mark {
  align-items: center;
  background: #f8fafc;
  border-radius: 16px;
  color: #0f172a;
  display: grid;
  font-size: 13px;
  font-weight: 900;
  height: 48px;
  letter-spacing: 0;
  place-items: center;
  width: 48px;
}

.rail-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  color: #cbd5e1;
  min-height: 48px;
  padding: 0;
  width: 48px;
}

.rail-btn.active,
.rail-btn:hover {
  background: rgba(45, 212, 191, 0.18);
  border-color: rgba(45, 212, 191, 0.52);
  color: #ffffff;
  transform: translateY(-1px);
}

.workspace {
  padding: 24px;
}

.topbar {
  align-items: center;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  margin-bottom: 18px;
}

.top-actions {
  align-items: center;
  display: flex;
  gap: 10px;
}

.auth-user-pill:empty {
  display: none;
}

.eyebrow {
  color: var(--brand);
  font-size: 13px;
  font-weight: 800;
  margin: 0 0 4px;
  text-transform: uppercase;
}

h1,
h2 {
  letter-spacing: 0;
  margin: 0;
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 19px;
}

.status-pill,
.icon-btn {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--soft-shadow);
  color: var(--muted);
  padding: 9px 13px;
  white-space: nowrap;
}

.hero-console {
  align-items: center;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.95), rgba(37, 99, 235, 0.86)),
    #0f766e;
  border-radius: 22px;
  box-shadow: var(--shadow);
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  margin-bottom: 16px;
  overflow: hidden;
  padding: 24px;
  position: relative;
}

.hero-console .eyebrow {
  color: rgba(255, 255, 255, 0.78);
}

.hero-console h2 {
  font-size: 26px;
  max-width: 680px;
}

.hero-copy {
  color: rgba(255, 255, 255, 0.82);
  margin: 8px 0 0;
  max-width: 640px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.hero-tags span {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: #f8fafc;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.02em;
  padding: 8px 12px;
}

.machine-card {
  align-items: center;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 18px;
  display: flex;
  gap: 12px;
  min-width: 210px;
  padding: 16px;
}

.machine-card small {
  color: rgba(255, 255, 255, 0.75);
  display: block;
  margin-top: 4px;
}

.machine-light {
  animation: pulse 1.6s infinite;
  background: #34d399;
  border-radius: 999px;
  box-shadow: 0 0 0 8px rgba(52, 211, 153, 0.16);
  height: 14px;
  width: 14px;
}

.steps-strip,
.signal-dashboard {
  display: grid;
  gap: 12px;
  margin-bottom: 16px;
}

.steps-strip {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.step {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--muted);
  display: flex;
  gap: 9px;
  padding: 12px;
}

.step span {
  align-items: center;
  background: #e5e7eb;
  border-radius: 999px;
  color: #334155;
  display: grid;
  font-size: 12px;
  font-weight: 800;
  height: 26px;
  place-items: center;
  width: 26px;
}

.step.active {
  border-color: rgba(15, 118, 110, 0.45);
  color: var(--ink);
}

.step.active span {
  background: var(--brand);
  color: #ffffff;
}

.signal-dashboard {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metric-tile {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--soft-shadow);
  padding: 16px;
}

.metric-label {
  color: var(--muted);
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
}

.metric-tile strong {
  font-size: 28px;
}

.panel,
.result-panel {
  backdrop-filter: blur(14px);
  background: var(--surface);
  border: 1px solid var(--line);
}

.panel {
  border-radius: 18px;
  box-shadow: var(--soft-shadow);
  margin-bottom: 16px;
  padding: 16px;
}

.setup-panel {
  align-items: end;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(160px, 1fr) minmax(160px, 1fr) minmax(180px, 1fr) auto;
}

.hidden {
  display: none !important;
}

.siemens-config {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(15, 118, 110, 0.08));
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: 16px;
  grid-column: 1 / -1;
  margin-top: 4px;
  padding: 14px 16px 16px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.siemens-config-head {
  align-items: center;
  display: flex;
  gap: 10px;
  justify-content: flex-start;
  margin-bottom: 14px;
}

.siemens-config-head strong,
.siemens-config-head small {
  display: block;
}

.siemens-config-head strong {
  color: var(--ink);
  font-size: 16px;
}

.siemens-config-head small {
  color: var(--muted);
  margin-top: 4px;
}

.catalog-guide {
  color: var(--blue) !important;
  font-weight: 700;
}

.siemens-config-grid {
  align-items: end;
  display: grid;
  gap: 12px 14px;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
}

.siemens-config .field {
  gap: 5px;
}

.siemens-config input {
  min-height: 42px;
}

.catalog-warning {
  align-items: flex-start;
  background:
    linear-gradient(135deg, rgba(127, 29, 29, 0.18), rgba(239, 68, 68, 0.16)),
    repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.09) 0 10px, rgba(255, 255, 255, 0.02) 10px 20px);
  border: 3px solid rgba(220, 38, 38, 1);
  border-radius: 12px;
  color: var(--danger);
  display: grid;
  gap: 6px;
  margin-top: 14px;
  padding: 14px 16px;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

.catalog-warning strong {
  color: #7f1d1d;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.catalog-warning p {
  margin: 0;
  line-height: 1.4;
}

.siemens-config-alert {
  border-color: rgba(220, 38, 38, 0.92) !important;
  background: linear-gradient(180deg, rgba(255, 239, 239, 0.96), rgba(255, 255, 255, 0.9));
  box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.14), 0 18px 36px rgba(127, 29, 29, 0.12);
}

.siemens-config-alert .catalog-guide,
.siemens-config-alert .siemens-config-head strong,
.siemens-config-alert .siemens-config-head small {
  color: #7f1d1d !important;
}

.field-error {
  border-color: var(--danger) !important;
  background: rgba(255, 245, 245, 0.98) !important;
  box-shadow: 0 0 0 5px rgba(220, 38, 38, 0.2) !important;
}

@keyframes siemens-panel-alert {
  0%, 100% {
    border-color: rgba(220, 38, 38, 0.92);
    box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.12), 0 18px 36px rgba(127, 29, 29, 0.1);
  }
  50% {
    border-color: rgba(127, 29, 29, 1);
    box-shadow: 0 0 0 6px rgba(220, 38, 38, 0.26), 0 18px 42px rgba(127, 29, 29, 0.2);
  }
}

@keyframes catalog-alert-blink {
  0%, 100% {
    border-color: rgba(220, 38, 38, 1);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.22), 0 0 20px rgba(220, 38, 38, 0.18);
  }
  50% {
    border-color: rgba(127, 29, 29, 1);
    box-shadow: 0 0 0 6px rgba(220, 38, 38, 0.34), 0 0 30px rgba(220, 38, 38, 0.28);
  }
}

@keyframes field-alert-blink {
  0%, 100% {
    border-color: rgba(220, 38, 38, 0.98);
    box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.18);
  }
  50% {
    border-color: rgba(127, 29, 29, 0.98);
    box-shadow: 0 0 0 6px rgba(220, 38, 38, 0.32);
  }
}

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

.panel-heading {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin-bottom: 14px;
}

.button-group {
  display: flex;
  gap: 8px;
}

.field {
  display: grid;
  gap: 6px;
}

.toggle-field {
  margin-bottom: 8px;
}

.checkbox-label {
  align-items: center;
  color: var(--ink);
  display: inline-flex;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--brand);
  width: 18px;
  height: 18px;
}

label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

input,
select,
textarea {
  background: var(--surface-solid);
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  padding: 11px 12px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
  width: 100%;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.13);
  outline: none;
}

textarea {
  line-height: 1.48;
  min-height: 190px;
  resize: vertical;
}

button {
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 800;
  min-height: 42px;
  padding: 9px 14px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

button:hover {
  transform: translateY(-1px);
}

button.primary {
  background: var(--brand);
  box-shadow: 0 12px 24px rgba(15, 118, 110, 0.22);
  color: #ffffff;
}

.link-button {
  align-items: center;
  border-radius: 12px;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 42px;
  padding: 9px 14px;
  text-decoration: none;
}

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

button.secondary,
.chip {
  background: var(--surface-solid);
  background: color-mix(in srgb, var(--surface-solid) 80%, var(--line));
  border-color: var(--line);
  color: var(--ink);
}

.rows {
  display: grid;
  gap: 10px;
}

.io-row {
  align-items: center;
  background: var(--surface-solid);
  border: 1px solid var(--line);
  border-radius: 14px;
  display: grid;
  gap: 8px;
  grid-template-columns: 72px minmax(0, 1fr) 40px;
  padding: 8px;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.io-row:hover {
  border-color: rgba(15, 118, 110, 0.42);
  transform: translateX(2px);
}

.io-row input {
  border: 0;
  box-shadow: none;
  padding: 8px;
}

.io-row input:first-child {
  background: rgba(15, 118, 110, 0.1);
  color: var(--brand);
  font-weight: 900;
  text-align: center;
}

.remove-btn {
  background: #fff1f2;
  border-color: #fecdd3;
  color: var(--danger);
  min-height: 36px;
  padding: 0;
}

body.dark .remove-btn {
  background: rgba(185, 28, 28, 0.18);
  border-color: rgba(251, 113, 133, 0.28);
}

.quick-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.chip {
  border-radius: 999px;
  min-height: 36px;
  padding: 8px 12px;
}

.result-panel {
  border-radius: 0;
  border-width: 0 0 0 1px;
  height: 100vh;
  overflow: auto;
  padding: 24px;
  position: sticky;
  top: 0;
}

.code-toolbar {
  align-items: center;
  background: #0b1220;
  border-radius: 14px 14px 0 0;
  display: flex;
  gap: 8px;
  padding: 12px 14px;
}

.dot {
  border-radius: 999px;
  height: 11px;
  width: 11px;
}

.red {
  background: #fb7185;
}

.amber {
  background: #fbbf24;
}

.green {
  background: #34d399;
}

.code-title {
  color: #94a3b8;
  font-size: 13px;
  margin-left: 6px;
}

pre {
  background: #111827;
  border-radius: 0 0 14px 14px;
  color: #e5e7eb;
  margin: 0;
  min-height: 420px;
  overflow: auto;
  padding: 16px;
  white-space: pre-wrap;
}

.warnings {
  color: var(--accent);
  font-size: 14px;
  line-height: 1.5;
  margin-top: 16px;
}

.warnings p {
  background: rgba(180, 83, 9, 0.1);
  border: 1px solid rgba(180, 83, 9, 0.18);
  border-radius: 12px;
  margin: 8px 0;
  padding: 10px 12px;
}

.compile-banner {
  align-items: start;
  border-radius: 14px;
  display: grid;
  gap: 4px;
  margin-top: 14px;
  padding: 14px 16px;
}

.compile-banner strong {
  font-size: 15px;
  letter-spacing: 0.01em;
}

.compile-banner span,
.compile-banner small {
  line-height: 1.45;
}

.compile-banner-success {
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.18), rgba(16, 185, 129, 0.12));
  border: 1px solid rgba(16, 185, 129, 0.34);
  color: #065f46;
  box-shadow: 0 12px 26px rgba(5, 150, 105, 0.12);
}

.compile-banner-pending {
  background: linear-gradient(135deg, rgba(180, 83, 9, 0.16), rgba(245, 158, 11, 0.12));
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #92400e;
  box-shadow: 0 12px 26px rgba(180, 83, 9, 0.12);
}

.compile-banner-error {
  background: linear-gradient(135deg, rgba(220, 38, 38, 0.14), rgba(254, 226, 226, 0.92));
  border: 1px solid rgba(220, 38, 38, 0.34);
  color: #991b1b;
  box-shadow: 0 12px 26px rgba(220, 38, 38, 0.14);
}

.compile-banner-alert {
  border-width: 2px;
}

.compile-banner-alert strong {
  letter-spacing: 0.04em;
}

@keyframes compile-error-blink {
  0%, 100% {
    border-color: rgba(220, 38, 38, 0.98);
    box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.18), 0 12px 26px rgba(220, 38, 38, 0.14);
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.16), rgba(254, 226, 226, 0.96));
  }
  50% {
    border-color: rgba(127, 29, 29, 1);
    box-shadow: 0 0 0 7px rgba(220, 38, 38, 0.28), 0 16px 34px rgba(127, 29, 29, 0.22);
    background: linear-gradient(135deg, rgba(185, 28, 28, 0.24), rgba(254, 202, 202, 0.98));
  }
}

.project-summary {
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.16), rgba(37, 99, 235, 0.12));
  border: 1px solid rgba(15, 118, 110, 0.24);
  border-radius: 18px;
  margin-bottom: 16px;
  padding: 18px;
}

.summary-label {
  color: var(--muted);
  display: block;
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.project-summary strong {
  display: block;
  font-size: 26px;
}

.project-summary small {
  color: var(--muted);
  display: block;
  margin-top: 6px;
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline-item {
  align-items: flex-start;
  background: var(--surface-solid);
  border: 1px solid var(--line);
  border-radius: 16px;
  display: grid;
  gap: 12px;
  grid-template-columns: 18px minmax(0, 1fr);
  padding: 14px;
}

.timeline-item > span {
  background: #cbd5e1;
  border-radius: 999px;
  height: 14px;
  margin-top: 3px;
  width: 14px;
}

.timeline-item.active {
  border-color: rgba(15, 118, 110, 0.42);
}

.timeline-item.active > span {
  background: var(--brand);
  box-shadow: 0 0 0 6px rgba(15, 118, 110, 0.12);
}

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

.timeline-item p {
  color: var(--muted);
  margin: 0;
}

.internal-shell {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(260px, 340px) minmax(0, 1fr);
  min-height: 100vh;
  padding: 24px;
}

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

.project-card {
  background: var(--surface-solid);
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink);
  cursor: pointer;
  padding: 12px;
  text-align: left;
}

.project-card strong,
.project-card small {
  color: inherit;
}

body.dark .project-card,
body.dark .project-card strong,
body.dark .project-card small {
  color: #f8fafc !important;
}

.project-card.active,
.project-card:hover {
  border-color: rgba(15, 118, 110, 0.55);
  transform: translateY(-1px);
}

.split-workbench {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
}

.data-view {
  background: var(--surface-solid);
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink);
  margin: 0;
  max-height: 460px;
  overflow: auto;
  padding: 14px;
  white-space: pre-wrap;
}

.flash {
  animation: flash 0.45s ease;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.72;
    transform: scale(0.86);
  }
}

@keyframes flash {
  0% {
    box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.45);
  }

  100% {
    box-shadow: 0 0 0 18px rgba(45, 212, 191, 0);
  }
}

@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 64px 1fr;
  }

  .siemens-config-grid {
    grid-template-columns: repeat(2, minmax(160px, 1fr));
  }

  .result-panel {
    border-left: 0;
    border-top: 1px solid var(--line);
    grid-column: 2;
    height: auto;
    position: static;
  }
}

@media (max-width: 760px) {
  .app-shell {
    display: block;
  }

  .rail {
    bottom: 0;
    flex-direction: row;
    height: 64px;
    justify-content: center;
    left: 0;
    padding: 8px;
    position: fixed;
    right: 0;
    top: auto;
  }

  .brand-mark {
    display: none;
  }

  .rail-btn {
    height: 46px;
    width: 64px;
  }

  .workspace,
  .result-panel {
    padding: 16px;
  }

  .result-panel {
    padding-bottom: 86px;
  }

  .topbar,
  .panel-heading,
  .hero-console {
    align-items: flex-start;
    flex-direction: column;
  }

  .setup-panel,
  .grid,
  .internal-shell,
  .split-workbench,
  .signal-dashboard,
  .steps-strip {
    grid-template-columns: 1fr;
  }

  .siemens-config-grid {
    grid-template-columns: 1fr;
  }

  .machine-card {
    width: 100%;
  }
}