:root {
  /* Colors */
  --color-primary: #141414;
  --color-primary-active: #262626;
  --color-ink: #141414;
  --color-body: #262626;
  --color-muted: #707070;
  --color-hairline: #e0e0e0;
  --color-border-strong: #adadad;
  --color-canvas: #ffffff;
  --color-surface-soft: #f3f3f3;
  --color-surface-strong: #e9e9e9;
  --color-surface-dark: #141414;
  --color-surface-dark-elevated: #262626;
  --color-signature-coral: #303030;
  --color-signature-forest: #262626;
  --color-signature-cream: #f3f3f3;
  --color-signature-peach: #ededed;
  --color-signature-mint: #e9e9e9;
  --color-signature-yellow: #e7e7e7;
  --color-signature-mustard: #d6d6d6;
  /* Extra card tints, kept at the same lightness as the signature set so the
     homepage can give every feature its own colour without one shouting. */
  --color-signature-sky: #f3f3f3;
  --color-signature-lilac: #ececec;
  --color-signature-sage: #e6e6e6;
  --color-signature-blush: #f0f0f0;
  --color-on-primary: #ffffff;
  --color-on-dark: #ffffff;
  --color-link: #141414;
  --color-link-active: #262626;
  --color-info-border: #141414;

  /* Radius */
  --radius-xs: 16px;
  --radius-sm: 16px;
  --radius-md: 24px;
  --radius-lg: 24px;
  --radius-pill: 9999px;
  --radius-full: 9999px;

  /* Spacing */
  --space-xxs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 48px;
  --space-section: 80px;

  --font-display: "Saans", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-text: "Saans", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--color-canvas);
  color: var(--color-body);
  font-family: var(--font-text);
  font-size: 14px;
  line-height: 1.25;
  -webkit-text-size-adjust: 100%;
}

a { color: var(--color-link); text-decoration: none; }
a:active { color: var(--color-link-active); }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-xxl);
}

/* Top nav */
.top-nav {
  height: 64px;
  padding-top: env(safe-area-inset-top);
  height: calc(64px + env(safe-area-inset-top));
  background: var(--color-canvas);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-hairline);
}

.top-nav .container {
  display: flex;
  align-items: center;
  width: 100%;
}

.top-nav__brand {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  color: var(--color-ink);
}

.top-nav__account {
  margin-left: auto;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-sm);
  background: var(--color-canvas);
  color: var(--color-ink);
  padding: 8px 12px;
  font: inherit;
  cursor: pointer;
}

/* Hero */
.hero-band {
  background: var(--color-canvas);
  padding: var(--space-section) 0;
  text-align: left;
}

.hero-band h1 {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-ink);
  max-width: 780px;
  margin: 0 0 var(--space-lg);
}

.hero-band p {
  font-size: 18px;
  color: var(--color-body);
  max-width: 620px;
  margin: 0;
}

/* Section rhythm helpers */
section {
  padding: var(--space-section) 0;
}

.section-title {
  font-family: var(--font-text);
  font-size: 24px;
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: 0.12px;
  color: var(--color-ink);
  margin: 0 0 var(--space-lg);
}

/* Demo grid */
.demo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.demo-grid-card {
  position: relative;
  display: block;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  color: var(--color-ink);
}

.demo-grid-card h3 {
  font-size: 16px;
  font-weight: 500;
  margin: 0 0 var(--space-xs);
  padding-right: 64px;
}

.demo-grid-card p {
  font-size: 14px;
  color: var(--color-body);
  margin: 0;
}

.demo-grid-card.is-hidden { display: none; }

.surface-peach { background: var(--color-signature-peach); }
.surface-mint { background: var(--color-signature-mint); }
.surface-cream { background: var(--color-signature-cream); }
.surface-yellow { background: var(--color-signature-yellow); }
.surface-mustard { background: var(--color-signature-mustard); }
.surface-sky { background: var(--color-signature-sky); }
.surface-lilac { background: var(--color-signature-lilac); }
.surface-sage { background: var(--color-signature-sage); }
.surface-blush { background: var(--color-signature-blush); }
.surface-canvas { background: var(--color-canvas); border: 1px solid var(--color-hairline); }

/* Stat tiles (API usage page) */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.stat-tile {
  background: var(--color-surface-soft);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.stat-tile__label {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 4px;
}

.stat-tile__value {
  font-size: 24px;
  font-weight: 500;
  color: var(--color-ink);
}

/* Feature card: optional square image + inline edit */
.demo-grid-card__link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}

.demo-grid-card__link[hidden] { display: none; }

.demo-grid-card__image {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background: rgba(255, 255, 255, 0.4);
}

.demo-grid-card__text { min-width: 0; }

.demo-grid-card__actions {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
}

.feature-pin-slot:empty { display: none; }

.feature-pin,
.feature-star,
.feature-edit {
  width: 26px;
  height: 26px;
  padding: 0;
  border: none;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.55);
  color: var(--color-ink);
  font-size: 13px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

/* The feature currently on the dashboard: the one dark button in the row,
   so it reads as "this one" at a glance across the grid. */
.feature-pin.is-active {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

/* Icon-only, so the em-relative size and inline nudge both go. */
.feature-pin .icon,
.feature-star .icon,
.feature-edit .icon {
  width: 15px;
  height: 15px;
  vertical-align: baseline;
  margin: 0;
}

.feature-star.is-favorited {
  background: var(--color-signature-yellow);
  color: var(--color-ink);
}

/* An active chip inverts to the dark primary, so its star has to follow. */
#favorites-filter.is-active .icon { color: var(--color-on-primary); }

.demo-grid-card__edit-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.demo-grid-card__edit-form[hidden] { display: none; }

.demo-grid-card__edit-form input[type="text"],
.demo-grid-card__edit-form textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 6px 8px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-xs);
  font-size: 13px;
  font-family: inherit;
  background: var(--color-canvas);
  color: var(--color-ink);
}

.demo-grid-card__edit-form textarea {
  resize: vertical;
  min-height: 48px;
}

.demo-grid-card__edit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.demo-grid-card__edit-actions button {
  border: 1px solid var(--color-hairline);
  background: var(--color-canvas);
  border-radius: var(--radius-xs);
  padding: 5px 10px;
  font-size: 12px;
  cursor: pointer;
}

.demo-grid-card__edit-actions .is-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

/* Private-page login */
.login-page {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.login-card {
  width: 100%;
  max-width: 380px;
  padding: var(--space-xl);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-lg);
}

.login-card h1 {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  color: var(--color-ink);
  margin: 0 0 var(--space-sm);
}

.login-card p {
  font-size: 14px;
  color: var(--color-muted);
  margin: 0 0 var(--space-lg);
}

.login-card label { display: block; margin-bottom: var(--space-xs); }

.login-card input {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-hairline);
  font-size: 16px;
  margin-bottom: var(--space-md);
}

.login-card input:focus {
  outline: none;
  border-color: var(--color-info-border);
}

.login-card button {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-signature-coral);
  color: var(--color-on-primary);
  font-size: 16px;
  cursor: pointer;
  margin-bottom: var(--space-md);
}

.login-card button:disabled { opacity: 0.6; }
.login-card > a { display: block; text-align: center; }

.login-card .login-card__error {
  color: var(--color-signature-coral);
  font-size: 13px;
  margin-bottom: var(--space-md);
}

body.is-guest #folder-add,
body.is-guest .feature-edit,
body.is-guest .feature-pin-slot,
body.is-guest .feature-folder__tools { display: none; }
body.is-guest #add-form,
body.is-guest .pm-table .cell-btn.is-danger { display: none; }

/* Feature search + favorites */
.feature-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.search-input-wrap {
  position: relative;
  flex: 1;
  min-width: 180px;
}

.search-input-wrap input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px 10px 34px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-ink);
  background: var(--color-canvas);
}

.search-input-wrap input:focus {
  outline: none;
  border-color: var(--color-info-border);
}

.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  /* .icon's vertical-align is for inline flow; inside this absolute overlay
     the translate does the centring instead. */
  transform: translateY(-50%);
  vertical-align: baseline;
  width: 16px;
  height: 16px;
  opacity: 0.55;
  pointer-events: none;
  color: var(--color-ink);
}

#favorites-filter.is-active {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

/* --- UI icon set (public/icons/ui-icons.svg, injected by js/icons.js) --- */

/* Every icon in the set is stroked in currentColor, so an icon takes the
   colour of whatever it sits in and sizes with the text. */
.icon {
  width: 1.25em;
  height: 1.25em;
  vertical-align: -0.2em;
  flex: none;
}

/* A button with both an icon and a label needs the gap; icon-only buttons set
   their own size and would gain a stray one. */
.chip-toggle .icon,
.btn-refresh .icon {
  margin-right: 5px;
}

/* The brand mark in the nav, tinted by the nav's text colour. */
.top-nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.brand-mark {
  width: 24px;
  height: 24px;
  flex: none;
}

.top-nav__back { opacity: 0.55; }

/* --- feature folders (home.js) --- */

.feature-sections {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.folder-create {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin: calc(var(--space-sm) * -1) 0 var(--space-lg);
}

.folder-create[hidden] { display: none; }

.folder-create input {
  flex: 1 1 220px;
  min-width: 0;
  padding: 8px 12px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 14px;
  color: var(--color-ink);
  background: var(--color-canvas);
}

.folder-create input:focus { outline: none; border-color: var(--color-info-border); }

.folder-error {
  margin: calc(var(--space-sm) * -1) 0 var(--space-md);
  font-size: 13px;
  color: var(--color-signature-coral);
}

.feature-folder {
  /* It's a <section>, and the site-wide `section { padding: 96px 0 }` page
     rhythm would otherwise put a screen of air between every folder. */
  padding: 0;
  border-radius: var(--radius-lg);
  transition: background-color 0.12s, box-shadow 0.12s;
}

.feature-folder[hidden],
.feature-folder.is-filtered-out { display: none; }

.feature-folder__head {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
  min-height: 32px;
}

.feature-folder__toggle {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  min-width: 0;
  padding: 4px 8px 4px 4px;
  border: none;
  border-radius: var(--radius-sm);
  background: none;
  font: inherit;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-ink);
  cursor: pointer;
  text-align: left;
}

.feature-folder__toggle:hover:not(:disabled) { background: var(--color-surface-soft); }
.feature-folder__toggle:disabled { cursor: default; }
.feature-folder__toggle:focus-visible { outline: 2px solid var(--color-info-border); outline-offset: 1px; }

.feature-folder__toggle .icon {
  width: 18px;
  height: 18px;
  vertical-align: baseline;
  transition: transform 0.15s;
  opacity: 0.6;
}

.feature-folder.is-unfiled .feature-folder__toggle .icon { display: none; }

.feature-folder__name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.feature-folder__count {
  flex: none;
  padding: 1px 8px;
  border-radius: var(--radius-pill);
  background: var(--color-surface-strong);
  font-size: 12px;
  font-weight: 500;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

.feature-folder__rename {
  min-width: 0;
  width: 220px;
  max-width: 60vw;
  padding: 4px 8px;
  border: 1px solid var(--color-info-border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 16px;
  color: var(--color-ink);
}

.feature-folder__tools {
  display: flex;
  gap: 2px;
  margin-left: auto;
}

.feature-folder__tool {
  width: 28px;
  height: 28px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--color-muted);
  cursor: pointer;
}

.feature-folder__tool:hover { background: var(--color-surface-soft); color: var(--color-ink); }
.feature-folder__tool .icon { width: 16px; height: 16px; vertical-align: baseline; }
.feature-folder__tool.is-up .icon { transform: rotate(180deg); }
.feature-folder__tool.is-remove:hover { color: var(--color-signature-coral); }

/* Collapsed: chevron points right, grid and empty hint go. A search with
   matches inside forces it open without saving that. */
.feature-folder.is-collapsed:not(.is-force-open) .feature-folder__toggle .icon { transform: rotate(-90deg); }
.feature-folder.is-collapsed:not(.is-force-open) > .demo-grid,
.feature-folder.is-collapsed:not(.is-force-open) > .feature-folder__empty { display: none; }

.feature-folder > .demo-grid:empty { display: none; }

.feature-folder__empty {
  margin: 0;
  padding: var(--space-md);
  border: 1px dashed var(--color-hairline);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
}

.feature-folder__empty[hidden] { display: none; }

/* Drag-and-drop: every folder lights up as a place to drop while a card is
   in the air, and the one under the pointer lights up more. */
.feature-sections.is-dragging .feature-folder {
  box-shadow: 0 0 0 1px var(--color-hairline);
}

.feature-folder.is-drop-target {
  background: var(--color-surface-soft);
  box-shadow: 0 0 0 2px var(--color-info-border) !important;
}

/* Dropping into a collapsed folder is fine — the grid just stays shut. */
.demo-grid-card.is-dragging { opacity: 0.4; }
.demo-grid-card[draggable="true"] { cursor: grab; }
.demo-grid-card[draggable="true"] a { cursor: pointer; }

.edit-folder-label {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 12px;
  color: var(--color-muted);
}

.edit-folder {
  flex: 1;
  min-width: 0;
  padding: 5px 8px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-xs);
  font: inherit;
  font-size: 13px;
  color: var(--color-ink);
  background: var(--color-canvas);
}

/* Heatmap */
.heatmap-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.heatmap-meta {
  font-size: 13px;
  color: var(--color-muted);
  margin-top: var(--space-xxs);
}

.btn-refresh {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border: none;
  border-radius: var(--radius-md);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}

.btn-refresh:active { background: var(--color-primary-active); }
.btn-refresh:disabled { opacity: 0.5; }

.market-block { margin-bottom: var(--space-xl); }

.market-block h2 {
  font-size: 18px;
  font-weight: 500;
  margin: 0 0 var(--space-sm);
  color: var(--color-ink);
}

.market-block__change {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
}

.market-block__change.is-up { color: var(--color-signature-coral); }
.market-block__change.is-down { color: var(--color-link); }

.heatmap-grid {
  position: relative;
  width: 100%;
}

.heatmap-tile {
  position: absolute;
  box-sizing: border-box;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  overflow: hidden;
  color: #ffffff;
  padding: 4px;
  text-align: center;
  cursor: pointer;
}

.heatmap-tile__name {
  font-size: 12px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.heatmap-tile__rate { font-size: 12px; }

.heatmap-tooltip {
  position: fixed;
  z-index: 100;
  pointer-events: none;
  background: var(--color-surface-dark);
  color: var(--color-on-dark);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.5;
  max-width: 220px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.heatmap-tooltip strong { font-weight: 500; }

.heatmap-empty,
.heatmap-closed {
  color: var(--color-muted);
  font-size: 14px;
}

/* Chart controls */
.chart-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.chart-controls__group {
  display: flex;
  gap: var(--space-xxs);
}

/* Without this, `el.hidden = true` does nothing here: the display above wins
   over the UA default [hidden] { display: none } by specificity. */
.chart-controls__group[hidden] { display: none; }

.chip-toggle {
  background: var(--color-canvas);
  color: var(--color-body);
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}

.chip-toggle.is-active {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

/* Footer */
.footer {
  background: var(--color-canvas);
  padding: var(--space-xl) 0 calc(var(--space-xl) + env(safe-area-inset-bottom));
  color: var(--color-body);
  border-top: 1px solid var(--color-hairline);
}

.footer__legal {
  font-size: 13px;
  color: var(--color-muted);
}

/* Data table (editable balance history / orders) */
.data-table-wrap { margin-top: var(--space-xxl); }
.section-block { margin-top: var(--space-xxl); }

.data-table-scroll {
  overflow-x: auto;
  border: 1px solid var(--color-hairline);
  border-radius: var(--radius-md);
  max-height: 420px;
  overflow-y: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  white-space: nowrap;
}

.data-table th,
.data-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--color-hairline);
  text-align: right;
}

.data-table th:first-child,
.data-table td:first-child { text-align: left; }

.data-table thead th {
  position: sticky;
  top: 0;
  background: var(--color-surface-soft);
  color: var(--color-ink);
  font-weight: 500;
  z-index: 1;
}

.data-table input {
  width: 100%;
  min-width: 90px;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  padding: 4px 6px;
  font-size: 13px;
  text-align: right;
  background: transparent;
  color: var(--color-ink);
}

.data-table input:focus {
  border-color: var(--color-info-border);
  background: var(--color-canvas);
  outline: none;
}

.data-table .cell-btn {
  border: 1px solid var(--color-hairline);
  background: var(--color-canvas);
  border-radius: var(--radius-xs);
  padding: 4px 8px;
  font-size: 12px;
  cursor: pointer;
  margin-left: 4px;
}

.data-table .cell-btn.is-dirty { border-color: var(--color-primary); font-weight: 500; }
.data-table .cell-btn.is-danger { color: var(--color-signature-coral); }

.data-table td.source-manual { color: var(--color-signature-coral); }
.data-table td.source-auto { color: var(--color-muted); }

/* Responsive */
@media (max-width: 1024px) {
  .demo-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .container { padding: 0 var(--space-lg); }
  .hero-band h1 { font-size: 32px; }
  .demo-grid { grid-template-columns: 1fr; }
}