:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --canvas: #f4f7f7;
  --surface: #ffffff;
  --surface-subtle: #edf2f2;
  --surface-raised: #ffffff;
  --text: #152122;
  --text-muted: #5e6b6d;
  --border: #d3dddd;
  --border-strong: #aebcbc;
  --accent: #087e78;
  --accent-hover: #056b66;
  --accent-soft: #d9f0ee;
  --accent-contrast: #ffffff;
  --danger: #b64a43;
  --danger-hover: #9d3c36;
  --danger-soft: #f8e4e1;
  --warning: #8a6213;
  --warning-soft: #f7ecd3;
  --success: #26744f;
  --success-soft: #dff0e7;
  --shadow: 0 10px 30px rgb(35 58 60 / 10%);
  --dialog-shadow: 0 24px 70px rgb(16 31 33 / 24%);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --canvas: #101617;
  --surface: #171e1f;
  --surface-subtle: #202829;
  --surface-raised: #1b2324;
  --text: #edf4f3;
  --text-muted: #a6b4b4;
  --border: #344142;
  --border-strong: #536263;
  --accent: #69cbc5;
  --accent-hover: #83d8d3;
  --accent-soft: #173c3a;
  --accent-contrast: #0b2422;
  --danger: #ff9288;
  --danger-hover: #ffaaa2;
  --danger-soft: #482927;
  --warning: #e1bd70;
  --warning-soft: #40351e;
  --success: #76c99a;
  --success-soft: #1d3d2e;
  --shadow: 0 12px 34px rgb(0 0 0 / 24%);
  --dialog-shadow: 0 26px 80px rgb(0 0 0 / 54%);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--canvas);
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--canvas);
  color: var(--text);
  font-size: 1rem;
  line-height: 1.5;
}

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

button,
input,
select,
textarea {
  letter-spacing: 0;
}

button,
a,
input,
select {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

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

h1,
h2,
h3 {
  line-height: 1.15;
  letter-spacing: 0;
}

h1 {
  margin-bottom: 0.75rem;
  font-size: 2.25rem;
}

h2 {
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

h3 {
  margin-bottom: 0.4rem;
  font-size: 1.1rem;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 0.9rem;
  border-radius: 6px;
  background: var(--text);
  color: var(--canvas);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.site-header {
  width: min(100% - 2rem, 1180px);
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 750;
  text-decoration: none;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--surface);
  color: var(--accent);
  font-size: 1.15rem;
  font-weight: 800;
}

.site-header-actions,
.workspace-actions,
.button-row,
.form-actions,
.dialog-footer {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.header-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 0.75rem;
  border-radius: 6px;
  color: var(--text-muted);
  font-weight: 650;
  text-decoration: none;
}

.header-link:hover {
  background: var(--surface-subtle);
  color: var(--text);
}

.theme-control {
  display: inline-grid;
  grid-template-columns: repeat(3, auto);
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface-subtle);
}

.theme-control button {
  min-height: 36px;
  padding: 0 0.65rem;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.theme-control button[aria-pressed="true"] {
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 1px 3px rgb(20 40 42 / 12%);
}

.button,
.icon-text-button,
.text-button {
  min-height: 44px;
  border-radius: 7px;
  font-weight: 700;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  border: 1px solid transparent;
  text-decoration: none;
}

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

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

.button-secondary {
  border-color: var(--border);
  background: var(--surface);
  color: var(--text);
}

.button-secondary:hover,
.button-quiet:hover {
  border-color: var(--border-strong);
  background: var(--surface-subtle);
}

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

.button-danger {
  border-color: var(--danger);
  background: var(--danger);
  color: #ffffff;
}

.button-danger:hover {
  border-color: var(--danger-hover);
  background: var(--danger-hover);
}

.button-wide {
  width: 100%;
}

.icon-text-button,
.text-button {
  border: 0;
  background: transparent;
  color: var(--accent);
}

.icon-text-button {
  padding: 0 0.5rem;
}

.text-button {
  min-height: 32px;
  padding: 0 0.25rem;
  font-size: 0.88rem;
}

.field {
  display: grid;
  gap: 0.4rem;
}

.field label,
.choice-group legend {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
}

.field label span {
  color: var(--text-muted);
  font-weight: 550;
}

.field input,
.field select,
.page-size select {
  width: 100%;
  min-height: 46px;
  padding: 0.68rem 0.78rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface);
  color: var(--text);
}

.field input:hover,
.field select:hover,
.page-size select:hover {
  border-color: var(--border-strong);
}

.field input:focus,
.field select:focus,
.page-size select:focus {
  border-color: var(--accent);
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.field-help {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.84rem;
}

.field-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.label-help-group {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.tooltip-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.tooltip-trigger {
  width: 1.35rem;
  min-width: 1.35rem;
  height: 1.35rem;
  min-height: 1.35rem;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1;
}

.tooltip-trigger:hover,
.tooltip-trigger:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.tooltip-bubble {
  position: absolute;
  z-index: 20;
  bottom: calc(100% + 0.55rem);
  left: 50%;
  width: max-content;
  max-width: min(18rem, calc(100vw - 3rem));
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface-raised);
  color: var(--text);
  box-shadow: var(--shadow);
  font-size: 0.82rem;
  font-weight: 550;
  line-height: 1.35;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 0.25rem);
  transition: opacity 120ms ease, transform 120ms ease;
}

.tooltip-bubble::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  width: 0.6rem;
  height: 0.6rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface-raised);
  transform: translate(-50%, -50%) rotate(45deg);
}

.tooltip-wrapper:hover .tooltip-bubble,
.tooltip-wrapper:focus-within .tooltip-bubble {
  opacity: 1;
  transform: translate(-50%, 0);
}

.input-action {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.6rem;
}

.slug-input,
.number-input {
  min-height: 46px;
  display: grid;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--surface);
  overflow: hidden;
}

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

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

.slug-input > span,
.number-input > span {
  padding: 0 0.75rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.slug-input input,
.number-input input {
  min-width: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.slug-input:focus-within,
.number-input:focus-within {
  border-color: var(--accent);
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.slug-input input:focus,
.number-input input:focus {
  outline: 0;
}

.eyebrow,
.section-kicker {
  margin-bottom: 0.45rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.status-message {
  min-height: 1.35rem;
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.status-message[data-tone="error"] {
  color: var(--danger);
}

.status-message[data-tone="success"] {
  color: var(--success);
}

.status-message[data-tone="warning"] {
  color: var(--warning);
}

.site-footer {
  width: min(100% - 2rem, 1180px);
  min-height: 68px;
  margin: 2rem auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.88rem;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--text-muted);
}

.dialog {
  width: min(calc(100% - 2rem), 640px);
  max-height: calc(100dvh - 2rem);
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-raised);
  color: var(--text);
  box-shadow: var(--dialog-shadow);
}

.dialog::backdrop {
  background: rgb(6 15 16 / 55%);
  backdrop-filter: blur(3px);
}

.dialog-layout {
  max-height: calc(100dvh - 2rem);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.dialog-header,
.dialog-footer {
  padding: 1rem 1.2rem;
  background: var(--surface);
}

.dialog-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
}

.dialog-header h2 {
  margin-bottom: 0;
}

.dialog-content {
  padding: 1.2rem;
  overflow: auto;
}

.dialog-content > * + * {
  margin-top: 1rem;
}

.dialog-footer {
  justify-content: flex-end;
  border-top: 1px solid var(--border);
}

.dialog-spacer {
  flex: 1;
}

.confirm-dialog {
  width: min(calc(100% - 2rem), 480px);
}

.danger-text {
  color: var(--danger);
}

.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: 720px) {
  h1 {
    font-size: 1.85rem;
  }

  .site-header {
    min-height: 64px;
    align-items: flex-start;
    padding: 0.8rem 0;
  }

  .site-header-actions {
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .header-link {
    display: none;
  }

  .theme-control button {
    min-height: 34px;
    padding: 0 0.5rem;
    font-size: 0.76rem;
  }

  .site-footer {
    padding: 1rem 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .input-action {
    grid-template-columns: 1fr;
  }

  .dialog {
    width: 100%;
    max-width: none;
    max-height: 100dvh;
    margin: auto 0 0;
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
    border-radius: 8px 8px 0 0;
  }

  .dialog-layout {
    max-height: 100dvh;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}