:root {
  color-scheme: light;
  --paper: #fbf4d1;
  --paper-deep: #efd98a;
  --surface: #fffdf4;
  --surface-muted: #fff6cf;
  --ink: #19150c;
  --ink-soft: #443923;
  --ink-muted: #74684d;
  --line: rgba(25, 21, 12, 0.14);
  --line-strong: rgba(25, 21, 12, 0.27);
  --accent: #8f5900;
  --accent-strong: #653e00;
  --accent-contrast: #ffffff;
  --accent-soft: rgba(178, 116, 13, 0.15);
  --blueprint: #285f79;
  --clay: #a24728;
  --danger: #973333;
  --danger-soft: #f3dddd;
  --shadow: 0 12px 34px rgba(48, 39, 13, 0.1), 0 1px 0 rgba(48, 39, 13, 0.05);
  --radius: 8px;
  --page-max: 1180px;
  --font-display: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --font-ui: Bahnschrift, "Segoe UI", sans-serif;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --paper: #15130b;
  --paper-deep: #211d11;
  --surface: #252014;
  --surface-muted: #1e1a0d;
  --ink: #f7f0dc;
  --ink-soft: #ded1aa;
  --ink-muted: #ab9c74;
  --line: rgba(247, 240, 220, 0.13);
  --line-strong: rgba(247, 240, 220, 0.27);
  --accent: #f0bd4e;
  --accent-strong: #ffe08a;
  --accent-contrast: #201500;
  --accent-soft: rgba(240, 189, 78, 0.16);
  --blueprint: #7db8c9;
  --clay: #e08a52;
  --danger: #ec8d8d;
  --danger-soft: rgba(228, 141, 141, 0.14);
  --shadow: 0 18px 46px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top right, color-mix(in srgb, var(--accent-soft) 55%, transparent), transparent 30rem),
    radial-gradient(circle at bottom left, color-mix(in srgb, var(--clay) 10%, transparent), transparent 26rem),
    var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.5;
}

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem clamp(1rem, 4vw, 2rem);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  text-decoration: none;
}

.brand__mark {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--blueprint));
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  font-size: 0.92rem;
}

.nav a,
.nav__button {
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
}

.nav a:hover,
.nav__button:hover {
  color: var(--ink);
}

.main {
  width: min(var(--page-max), calc(100vw - 1.5rem));
  margin: 0 auto;
  padding: clamp(1rem, 4vw, 2.25rem) 0 3rem;
}

.workspace {
  display: grid;
  gap: 1rem;
}

.workspace--split {
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  align-items: start;
}

.profile-keys-page {
  max-width: 58rem;
  margin: 0 auto;
}

.public-home {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(19rem, 1.14fr);
  gap: clamp(1rem, 4vw, 2rem);
  align-items: center;
  min-height: min(42rem, calc(100vh - 8rem));
}

.public-home__copy {
  display: grid;
  gap: 1rem;
}

.public-home__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.25rem;
}

.public-home__signals {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.2rem;
}

.public-home__signals span {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  color: var(--ink-soft);
  padding: 0.38rem 0.65rem;
  font-size: 0.84rem;
  font-weight: 800;
}

.public-preview {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--surface), color-mix(in srgb, var(--surface-muted) 70%, var(--paper)));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.public-preview__bar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.65rem;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 0.85rem 1rem;
  color: var(--ink-soft);
}

.public-preview__icon {
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 8px;
}

.public-preview__bar span:last-child {
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.25rem 0.55rem;
  font-size: 0.78rem;
  font-weight: 800;
}

.public-preview__grid {
  display: grid;
  grid-template-columns: minmax(10rem, 0.72fr) minmax(0, 1.28fr);
  gap: 0.75rem;
  padding: clamp(0.9rem, 3vw, 1.25rem);
}

.public-preview__topic,
.public-preview__note {
  display: grid;
  gap: 0.28rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: color-mix(in srgb, var(--surface) 84%, var(--paper-deep));
  padding: 0.85rem;
}

.public-preview__topic.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.public-preview__topic span {
  color: var(--ink-muted);
  font-size: 0.86rem;
}

.public-preview__note {
  grid-row: span 2;
  align-content: start;
  color: var(--ink-soft);
  font-family: "Cascadia Code", Consolas, monospace;
  min-height: 16rem;
}

.panel,
.empty-state,
.topic-card,
.key-card,
.user-row,
.preview-panel,
.editor {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel {
  padding: clamp(1.1rem, 4vw, 1.8rem);
}

.intro-panel {
  position: sticky;
  top: 5.5rem;
}

.eyebrow {
  margin: 0 0 0.45rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.05;
}

h1 {
  font-size: clamp(2rem, 6vw, 3.6rem);
}

h2 {
  font-size: clamp(1.4rem, 4vw, 2rem);
}

h3 {
  font-size: 1.2rem;
}

.lead {
  margin: 0.9rem 0 0;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.quick-create,
.key-form {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.35rem;
}

label {
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  min-height: 2.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: color-mix(in srgb, var(--surface) 92%, var(--paper-deep));
  color: var(--ink);
  padding: 0.72rem 0.8rem;
  outline: none;
}

textarea {
  min-height: 58vh;
  resize: vertical;
  font-family: "Cascadia Code", Consolas, monospace;
  line-height: 1.55;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 23%, transparent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.65rem;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0.62rem 0.95rem;
  font-weight: 700;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
}

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

.btn-secondary {
  border-color: var(--line-strong);
  background: var(--surface);
  color: var(--ink);
}

.btn-danger {
  border-color: color-mix(in srgb, var(--danger) 48%, transparent);
  background: var(--danger-soft);
  color: var(--danger);
}

.topic-stack {
  display: grid;
  gap: 1rem;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.topic-list,
.key-list,
.user-list {
  display: grid;
  gap: 0.75rem;
}

.key-overview-panel {
  display: grid;
  gap: 1rem;
}

.topic-card {
  display: grid;
  gap: 0.4rem;
  padding: 1rem;
  text-decoration: none;
  transition: transform 140ms ease, border-color 140ms ease;
}

.topic-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.topic-card--deleted {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  opacity: 0.86;
}

.topic-card--deleted:hover {
  border-color: var(--line);
  transform: none;
}

.topic-card--deleted > div {
  display: grid;
  gap: 0.4rem;
}

.topic-card__title {
  font-weight: 800;
}

.topic-card__excerpt,
.topic-card__meta,
.key-card span,
.key-card small,
.user-row span,
.user-row small {
  color: var(--ink-muted);
}

.topic-card__excerpt {
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.empty-state {
  padding: 1.2rem;
}

.deleted-section {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.editor-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(19rem, 0.75fr);
  gap: 1rem;
  align-items: start;
}

.editor,
.preview-panel {
  padding: clamp(0.9rem, 3vw, 1.3rem);
}

.editor {
  display: flex;
  flex-direction: column;
}

.editor__header,
.preview-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.editor__status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex: 0 0 auto;
}

.back-link {
  color: var(--ink-soft);
  text-decoration: none;
}

.live-pill,
.badge {
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.28rem 0.6rem;
  font-size: 0.78rem;
  font-weight: 800;
}

.mode-button {
  min-height: 2.05rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--ink-soft);
  padding: 0.22rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 800;
}

.mode-button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.title-input {
  min-height: 3.35rem;
  margin-bottom: 0.7rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.12;
  resize: none;
}

.toolbar {
  position: sticky;
  top: 4.65rem;
  z-index: 12;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  padding: 0.45rem;
  backdrop-filter: blur(16px);
}

.tool-button {
  width: 2.55rem;
  height: 2.55rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-muted);
  color: var(--ink);
  font-weight: 800;
}

.editor-shell.is-focus-mode {
  grid-template-columns: minmax(0, 1fr);
}

.editor-shell.is-focus-mode .preview-panel {
  display: none;
}

.editor-shell.is-focus-mode [data-note-markdown] {
  min-height: calc(100vh - 18rem);
}

.markdown-preview {
  min-height: 18rem;
  color: var(--ink-soft);
  overflow-wrap: anywhere;
}

.markdown-preview h1,
.markdown-preview h2,
.markdown-preview h3 {
  margin: 1rem 0 0.4rem;
}

.markdown-preview p,
.markdown-preview ul {
  margin: 0.55rem 0;
}

.markdown-preview code,
.secret-box code {
  border-radius: 5px;
  background: var(--surface-muted);
  padding: 0.15rem 0.28rem;
  font-family: "Cascadia Code", Consolas, monospace;
}

.config-examples {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.45rem;
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
}

.config-examples__head {
  margin-bottom: 0;
}

.tab-list {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.45rem;
}

.tab-button {
  flex: 0 0 auto;
  min-height: 2.35rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-muted);
  color: var(--ink-soft);
  padding: 0.5rem 0.8rem;
  font-weight: 800;
}

.tab-button:hover,
.tab-button.is-active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.tab-button:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 28%, transparent);
  outline-offset: 2px;
}

.code-panel {
  display: grid;
  gap: 0.45rem;
}

.code-panel__file {
  color: var(--ink-muted);
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.82rem;
}

.code-panel pre {
  max-width: 100%;
  margin: 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface-muted) 72%, var(--surface));
  padding: 0.9rem;
}

.code-panel code {
  color: var(--ink-soft);
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.55;
  white-space: pre;
}

.remote-banner,
.offline-banner,
.secret-box {
  display: grid;
  gap: 0.7rem;
  margin-top: 1rem;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 0.9rem;
  background: var(--surface-muted);
}

.delete-action {
  display: flex;
  justify-content: flex-end;
  margin-top: 1rem;
}

.remote-banner {
  grid-template-columns: 1fr auto;
  align-items: center;
  border-color: var(--clay);
}

.offline-banner {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  border-color: var(--blueprint);
  background: color-mix(in srgb, var(--blueprint) 9%, var(--surface));
}

.offline-banner strong,
.offline-banner span {
  display: block;
}

.offline-banner span {
  color: var(--ink-muted);
}

.conflict-panel {
  display: grid;
  gap: 0.85rem;
  margin-top: 1rem;
  border: 1px solid color-mix(in srgb, var(--clay) 56%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--clay) 7%, var(--surface));
  padding: 1rem;
}

.conflict-panel__head {
  margin-bottom: 0;
}

.conflict-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.conflict-grid section {
  display: grid;
  gap: 0.45rem;
}

.conflict-grid textarea {
  min-height: 11rem;
  resize: vertical;
}

.conflict-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.secret-box {
  border-style: solid;
  border-color: var(--accent);
}

.check-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.check-row label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.check-row input {
  width: auto;
  min-height: 0;
}

.key-card,
.user-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
}

.key-card > div,
.user-row > div:first-child {
  display: grid;
  gap: 0.22rem;
}

.key-card.is-inactive {
  opacity: 0.62;
}

.user-row__actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.status-banner {
  margin-bottom: 1rem;
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 0.85rem 1rem;
  box-shadow: var(--shadow);
}

.copy-toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 30;
  transform: translateY(0.5rem);
  border-radius: 6px;
  background: var(--ink);
  color: var(--paper);
  padding: 0.7rem 0.9rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms ease, transform 150ms ease;
}

.copy-toast.is-visible {
  transform: translateY(0);
  opacity: 1;
}

.undo-toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 45;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 0.75rem;
  align-items: center;
  width: min(34rem, calc(100vw - 2rem));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 0.85rem;
}

.undo-toast strong,
.undo-toast span {
  display: block;
}

.undo-toast span {
  color: var(--ink-muted);
}

.toast-dismiss {
  width: 2.4rem;
  height: 2.4rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-muted);
  color: var(--ink-soft);
  font-size: 1.35rem;
  line-height: 1;
}

.has-modal {
  overflow: hidden;
}

.confirm-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.confirm-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 12, 6, 0.48);
  backdrop-filter: blur(4px);
}

.confirm-modal__panel {
  position: relative;
  display: grid;
  gap: 0.65rem;
  width: min(28rem, 100%);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: clamp(1rem, 4vw, 1.35rem);
}

.confirm-modal__panel p {
  margin: 0;
  color: var(--ink-soft);
}

.confirm-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.6rem;
  margin-top: 0.35rem;
}

.center-page {
  display: grid;
  min-height: 65vh;
  place-items: center;
}

.admin-page {
  display: grid;
  gap: 1rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 900px) {
  .workspace--split,
  .editor-shell,
  .public-home,
  .public-preview__grid {
    grid-template-columns: 1fr;
  }

  .intro-panel,
  .preview-panel {
    position: static;
  }
}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.25rem;
  }

  .section-head,
  .config-examples__head,
  .key-card,
  .topic-card--deleted,
  .user-row,
  .remote-banner,
  .offline-banner,
  .confirm-modal__actions,
  .undo-toast {
    align-items: stretch;
    flex-direction: column;
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
  }

  .public-home {
    min-height: auto;
  }

  .public-home__actions {
    width: 100%;
  }

  textarea {
    min-height: 52vh;
  }

  .editor-shell {
    --mobile-keyboard-inset: 0px;
    --mobile-toolbar-height: 3.7rem;
  }

  .editor__header {
    align-items: flex-start;
  }

  .editor__status {
    align-items: flex-end;
    flex-direction: column;
  }

  .toolbar {
    order: 11;
    top: auto;
    bottom: calc(env(safe-area-inset-bottom) + 0.75rem);
    flex-wrap: nowrap;
    justify-content: flex-start;
    margin-top: 0.65rem;
    margin-bottom: 0;
    overflow-x: auto;
    box-shadow: var(--shadow);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .toolbar::-webkit-scrollbar {
    display: none;
  }

  .tool-button {
    flex: 0 0 3rem;
    width: 3rem;
    max-width: none;
  }

  [data-note-markdown] {
    order: 10;
    padding-bottom: calc(var(--mobile-toolbar-height) + 1.1rem);
  }

  .remote-banner {
    order: 12;
  }

  .conflict-panel {
    order: 13;
  }

  .editor-shell.is-mobile-editing .editor {
    padding-bottom: calc(var(--mobile-toolbar-height) + 1.25rem);
  }

  .editor-shell.is-mobile-editing .toolbar {
    position: fixed;
    right: 0.75rem;
    bottom: calc(var(--mobile-keyboard-inset) + env(safe-area-inset-bottom) + 0.55rem);
    left: 0.75rem;
    z-index: 60;
    margin: 0;
  }

  .conflict-grid,
  .conflict-actions {
    grid-template-columns: 1fr;
  }

  .conflict-actions {
    flex-direction: column;
  }
}