:root {
  --ink: #17212b;
  --muted: #52616f;
  --line: #d9e0e7;
  --paper: #ffffff;
  --wash: #f7f9fb;
  --faint: #eef1f4;
  --blue: #1e6f9f;
  --blue-soft: #e8f3f8;
  --green: #28775c;
  --green-soft: #e9f5f0;
  --amber: #8a5a0a;
  --amber-soft: #fff3d8;
  --red: #a2403d;
  --violet: #6552a0;
  --shadow: 0 16px 38px rgba(23, 33, 43, 0.08);
  --radius: 8px;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(232, 243, 248, 0.78), rgba(247, 249, 251, 0) 360px),
    var(--wash);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.45;
}

a { color: var(--blue); text-underline-offset: 3px; }
code { font-family: var(--mono); background: #eef2f5; border-radius: 5px; padding: 1px 5px; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  min-height: 64px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  padding: 10px 28px;
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 900;
  text-decoration: none;
}

.brand img {
  width: 74px;
  height: 28px;
  object-fit: contain;
}

.primary-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  justify-content: center;
}

.primary-nav a {
  border-radius: 6px;
  color: #334150;
  font-size: 14px;
  font-weight: 900;
  padding: 8px 10px;
  text-decoration: none;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  background: var(--blue-soft);
  color: var(--blue);
  outline: none;
}

.user-chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  padding: 6px 10px;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-shell,
.doc-shell {
  max-width: 1220px;
  margin: 0 auto;
  padding: 28px;
}

.workspace-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 12px 0 24px;
}

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

.portal-overview {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  padding: 18px 0 0;
}

.overview-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  padding: 14px;
}

.overview-item strong {
  display: block;
  margin: 2px 0 6px;
  font-size: 19px;
}

.overview-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.overview-label {
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

h1 {
  max-width: 860px;
  margin: 0 0 10px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 12px;
  font-size: 24px;
}

h3 { margin: 0 0 6px; }

.lead {
  max-width: 840px;
  margin: 0;
  color: #334150;
  font-size: 18px;
}

.page-card,
.editor-panel,
.doc {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 14px;
  padding: 22px 0;
}

label span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #cbd5df;
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  padding: 10px 11px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(30, 111, 159, 0.12);
  outline: none;
}

textarea {
  resize: vertical;
}

.search {
  flex: 1;
  max-width: 540px;
}

.view-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 40px;
  border: 1px solid #b9c7d4;
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  padding: 8px 12px;
  text-decoration: none;
}

.button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.button.compact {
  min-height: 34px;
  padding: 6px 10px;
}

.button.primary {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.button.quiet {
  border-color: transparent;
  background: transparent;
  color: var(--blue);
}

.button.danger {
  border-color: #e3b4b2;
  background: #fff5f4;
  color: #a53732;
}

.filter-chip {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 900;
  padding: 7px 10px;
}

.filter-chip.is-active {
  border-color: var(--blue);
  background: var(--blue-soft);
  color: var(--blue);
}

.login-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(100%, 440px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
  padding: 24px;
}

.login-panel .brand {
  margin-bottom: 28px;
}

.login-panel h1 {
  font-size: clamp(32px, 7vw, 44px);
}

.login-form {
  margin-top: 22px;
}

.login-error {
  border: 1px solid #efc6c4;
  border-radius: 6px;
  background: #fff0ef;
  color: var(--red);
  font-weight: 800;
  padding: 10px 12px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 440px);
  gap: 18px;
  align-items: start;
}

.section-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.section-title h2 {
  margin: 0;
}

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

.page-card {
  display: grid;
  gap: 10px;
  padding: 16px;
  box-shadow: 0 1px 0 rgba(23, 33, 43, 0.02);
}

.page-card:hover {
  border-color: #b7c9d6;
  box-shadow: 0 8px 24px rgba(23, 33, 43, 0.06);
}

.page-card h3 {
  font-size: 18px;
}

.page-card p {
  margin: 0;
  color: var(--muted);
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #f7fafc;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  padding: 4px 8px;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.editor-panel {
  padding: 16px;
  box-shadow: var(--shadow);
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.panel-title h2 {
  margin: 0;
}

form {
  display: grid;
  gap: 12px;
}

.drop-zone {
  display: grid;
  border: 1px dashed #aebdca;
  border-radius: var(--radius);
  background: linear-gradient(180deg, #ffffff, #f8fbfd);
  cursor: pointer;
  padding: 14px;
}

.drop-zone input {
  margin-top: 8px;
}

.drop-zone.is-dragging {
  border-color: var(--blue);
  background: var(--blue-soft);
}

.drop-zone.is-disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.form-status {
  min-height: 22px;
  margin: 0;
  color: var(--muted);
  font-weight: 800;
}

.inline-copy {
  border: 0;
  background: transparent;
  color: var(--blue);
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  padding: 0 0 0 8px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.help-panel {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  gap: 18px;
  border-top: 1px solid var(--line);
  margin-top: 26px;
  padding: 24px 0 4px;
}

.steps {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.68);
  color: #334150;
  padding: 13px 14px;
}

.steps strong {
  display: block;
  color: var(--ink);
  margin-bottom: 4px;
}

.doc {
  padding: clamp(18px, 4vw, 42px);
}

.doc h1 {
  font-size: clamp(32px, 5vw, 56px);
}

.doc h2 {
  border-top: 1px solid var(--line);
  margin-top: 28px;
  padding-top: 20px;
}

.doc p,
.doc li {
  color: #2f3d4c;
}

.artifact-view {
  overflow: hidden;
}

.artifact-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 14px;
  min-height: 48px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  padding: 8px 18px;
  backdrop-filter: blur(10px);
}

.back-button {
  min-height: 34px;
  padding: 6px 10px;
}

.back-button::before {
  content: "<";
  font-family: var(--mono);
}

.artifact-brand {
  min-width: max-content;
}

.artifact-title {
  overflow: hidden;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

.doc-shell > .page-actions {
  margin: 12px 0 18px;
  justify-content: flex-start;
}

.artifact-shell {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  height: calc(100vh - 65px);
  min-height: 620px;
}

.artifact-shell.single {
  display: block;
  height: calc(100vh - 49px);
  min-height: 0;
}

.artifact-metadata {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: end;
  border-bottom: 1px solid var(--line);
  background: var(--wash);
  padding: 18px 28px;
}

.artifact-metadata h1 {
  max-width: 980px;
  margin-bottom: 8px;
  font-size: clamp(24px, 3vw, 42px);
  line-height: 1.05;
}

.artifact-metadata .lead {
  max-width: 980px;
  font-size: 15px;
}

.artifact-frame {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
}

.back-link {
  display: inline-flex;
  margin-bottom: 14px;
  font-weight: 900;
}

@media (max-width: 900px) {
  .topbar {
    align-items: flex-start;
    grid-template-columns: 1fr;
  }

  .top-actions {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .workspace-head,
  .layout,
  .artifact-metadata,
  .help-panel {
    grid-template-columns: 1fr;
  }

  .portal-overview {
    grid-template-columns: 1fr;
  }

  .primary-nav {
    justify-content: flex-start;
  }

  .head-actions {
    justify-content: flex-start;
  }

  .artifact-bar {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .artifact-bar .page-actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }

  .artifact-brand span {
    display: none;
  }

  .artifact-title {
    display: none;
  }

  .toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .search {
    max-width: none;
  }

  .view-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 620px) {
  .app-shell,
  .doc-shell {
    padding: 18px 14px;
  }

  .topbar {
    padding: 10px 14px;
  }

  .primary-nav {
    width: 100%;
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 2px;
  }

  .workspace-head {
    padding-top: 4px;
  }

  .section-title {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .artifact-shell {
    height: calc(100vh - 105px);
  }

  .artifact-shell.single {
    height: calc(100vh - 49px);
  }

  .artifact-metadata {
    padding: 14px;
  }
}