/* Variant 3 — "Шалфей" (sage).
   A sage ground and a deep teal accent, one typeface (Commissioner), soft
   corners and almost no shadow. Its side panel is a table of contents: every
   topic opens into its decks, under it, so the whole hierarchy is one list
   that scrolls on its own beside the cards. */
:root[data-variant="sage"] {
  --bg: #eef1ec;
  --panel: #f4f6f2;
  --surface: #ffffff;
  --line: #dde2da;
  --line-soft: #ecefe9;
  --ink: #16201b;
  --ink-soft: #34413a;
  --muted: #5e6b63;
  --placeholder: #8c978f;

  --accent: #0f6e63;
  --accent-hover: #0a5249;
  --accent-soft: #ddefea;
  --accent-ink: #0a5249;
  --on-accent: #ffffff;

  --chip: #edf0ea;
  --chip-ink: #3e4a43;
  --dash: #b7c0b8;

  --row-edit: #eaf5f2;
  --seg-on: #ffffff;
  --seg-shadow: 0 1px 2px rgba(22, 32, 27, 0.08);
  --menu-shadow: 0 12px 40px rgba(22, 32, 27, 0.14);

  --danger: #a5381f;
  --ok: #17724f;
  --pending: #b7c0b8;

  --radius: 12px;
  --radius-lg: 18px;
  --radius-pill: 999px;
  --border-w: 1px;
  --shadow-btn: none;
  --shadow-card: 0 1px 2px rgba(22, 32, 27, 0.05);

  --font-display: Commissioner, "Noto Sans Armenian", system-ui, sans-serif;
  --font-body: Commissioner, "Noto Sans Armenian", system-ui, sans-serif;
  --h1-size: clamp(26px, 3vw, 32px);
  --h1-weight: 700;
  --h1-spacing: -0.01em;
  --label-spacing: 0.06em;
  --label-transform: uppercase;

  --art-bg: #ffffff;
  --art-ink: #16201b;
}

@media (prefers-color-scheme: dark) {
  :root[data-variant="sage"]:not([data-theme="light"]) {
    --bg: #0f1412;
    --panel: #141a17;
    --surface: #1a211e;
    --line: #2a332e;
    --line-soft: #222a26;
    --ink: #e6ece8;
    --ink-soft: #c6cfca;
    --muted: #97a39c;
    --placeholder: #7a8680;

    --accent: #5cc8b7;
    --accent-hover: #8fe0d3;
    --accent-soft: #183430;
    --accent-ink: #8fe0d3;
    --on-accent: #0a1f1b;

    --chip: #252e2a;
    --chip-ink: #c6cfca;
    --dash: #4a5550;

    --row-edit: #17302b;
    --seg-on: #2e3833;
    --seg-shadow: none;
    --menu-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);

    --danger: #f08b70;
    --ok: #5fbe86;
    --pending: #4a5550;

    --shadow-card: none;
    --art-bg: #1a211e;
    --art-ink: #e6ece8;
  }
}

:root[data-variant="sage"][data-theme="dark"] {
  --bg: #0f1412;
  --panel: #141a17;
  --surface: #1a211e;
  --line: #2a332e;
  --line-soft: #222a26;
  --ink: #e6ece8;
  --ink-soft: #c6cfca;
  --muted: #97a39c;
  --placeholder: #7a8680;

  --accent: #5cc8b7;
  --accent-hover: #8fe0d3;
  --accent-soft: #183430;
  --accent-ink: #8fe0d3;
  --on-accent: #0a1f1b;

  --chip: #252e2a;
  --chip-ink: #c6cfca;
  --dash: #4a5550;

  --row-edit: #17302b;
  --seg-on: #2e3833;
  --seg-shadow: none;
  --menu-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);

  --danger: #f08b70;
  --ok: #5fbe86;
  --pending: #4a5550;

  --shadow-card: none;
  --art-bg: #1a211e;
  --art-ink: #e6ece8;
}

/* --- the contents tree ------------------------------------------------- */

/* One panel on every page that has one: the topics, with the decks of those
   that are open under them. The decks panel of the other variants is not
   needed — the tree holds them. */
[data-variant="sage"] .side-rail > .pane-topics {
  display: flex;
}

[data-variant="sage"] .side-rail > .level-decks {
  display: none;
}

/* The panel and the cards each scroll on their own. */
@media (min-width: 901px) {
  [data-variant="sage"] .shell {
    height: calc(100vh - 65px);
    min-height: 0;
    overflow: hidden;
  }

  [data-variant="sage"] .sidebar,
  [data-variant="sage"] .content {
    overflow: auto;
  }

  /* The cards' column scrolls itself, under the top bar: the review bar
     sticks to the column's own top. */
  [data-variant="sage"] .review-bar {
    top: 0;
  }

  [data-variant="sage"] .side-rail > .level-topics {
    width: 300px;
    padding: 18px 12px;
  }
}

[data-variant="sage"] .sidebar {
  background: var(--panel);
}

/* In the narrow screen's drawer the tree is the drawer's one panel, down to
   its foot, rather than a strip of colour over the drawer's own. */
@media (max-width: 900px) {
  [data-variant="sage"] .side-rail > .level-topics {
    flex-grow: 1;
  }
}

[data-variant="sage"] .side-link {
  min-height: 44px;
  border-radius: 12px;
}

/* A topic's row: the twisty, then the topic. The twisty sits over the row's
   left edge, so the link starts after it. */
[data-variant="sage"] .side-item > .side-link {
  padding-left: 40px;
}

[data-variant="sage"] .side-item > button.side-twisty {
  display: inline-flex;
  left: 4px;
  z-index: 1;
  border-color: transparent;
  background: transparent;
  color: var(--muted);
  box-shadow: none;
}

[data-variant="sage"] .side-item > button.side-twisty:hover:not(:disabled) {
  background: var(--chip);
  color: var(--ink);
}

[data-variant="sage"] .side-glyph {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

/* The decks, hung from their topic by a rule, the way a contents page sets
   off a chapter's sections. */
/* The tree folds a topic's decks open and shut (`.fold`). */
[data-variant="sage"] .side-fold:not(.open) {
  display: grid;
}

[data-variant="sage"] .side-children {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 2px 0 8px 27px;
  padding-left: 12px;
  border-left: 1.5px solid var(--line);
}

[data-variant="sage"] .side-link.side-child {
  min-height: 36px;
  padding: 0 10px;
  border-radius: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

[data-variant="sage"] .side-link.side-child:hover {
  color: var(--ink);
}

/* The deck at hand: its own ground and a heavier face, nothing at the edge —
   the topic's rule already runs down that side. */
[data-variant="sage"] .side-link.side-child.active {
  background: var(--surface);
  color: var(--accent-ink);
}

[data-variant="sage"] .side-link.side-child.add {
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

[data-variant="sage"] .side-children .side-link.skeleton {
  min-height: 36px;
}

/* --- chrome ------------------------------------------------------------- */

[data-variant="sage"] .topbar {
  padding: 8px 20px;
}

[data-variant="sage"] .brand {
  font-weight: 700;
  font-size: 19px;
}

[data-variant="sage"] button.search-trigger,
[data-variant="sage"] .card-search input,
[data-variant="sage"] select.switcher,
[data-variant="sage"] .profile-link,
[data-variant="sage"] .btn-link,
[data-variant="sage"] .seg {
  border-color: transparent;
  background-color: var(--panel);
}

[data-variant="sage"] .seg {
  background: var(--panel);
}

[data-variant="sage"] button.btn-link:hover:not(:disabled),
[data-variant="sage"] button.profile-link,
[data-variant="sage"] button.profile-link:hover:not(:disabled) {
  background-color: var(--panel);
}

[data-variant="sage"] .avatar {
  width: 34px;
  height: 34px;
  border-radius: 9px;
}

[data-variant="sage"] .content {
  padding: 24px 32px 48px;
  gap: 18px;
}

/* --- surfaces ------------------------------------------------------------ */

[data-variant="sage"] .row.editing,
[data-variant="sage"] .row.adding {
  box-shadow: none;
  background: var(--row-edit);
}

[data-variant="sage"] .row {
  border-bottom-color: var(--line-soft);
}

[data-variant="sage"] .row-title,
[data-variant="sage"] .card-side.front {
  font-family: var(--font-body);
  font-weight: 600;
}

[data-variant="sage"] .glyph {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-family: var(--font-body);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
}

[data-variant="sage"] .topic-name {
  font-size: 20px;
  font-weight: 700;
}

[data-variant="sage"] span.tag-chip,
[data-variant="sage"] button.tag-chip {
  border-radius: 10px;
}

/* --- login: one centred card, no split panel ----------------------------- */

[data-variant="sage"] .login {
  position: relative;
  flex-direction: column;
  align-items: center;
  padding: 88px 20px 48px;
}

[data-variant="sage"] .login-col {
  order: 2;
  width: min(520px, 100%);
  padding: 0;
}

/* The bar belongs to the page, not to the column the card sits in — pin it to
   the top so the chips and the card stay centred under it. */
[data-variant="sage"] .login-bar {
  position: absolute;
  top: 28px;
  left: clamp(20px, 4vw, 40px);
  right: clamp(20px, 4vw, 40px);
}

[data-variant="sage"] .login-body {
  padding: 24px 0 0;
}

[data-variant="sage"] .login-form {
  width: 100%;
  padding: 36px;
  border-radius: 24px;
  background: var(--surface);
  box-shadow:
    0 1px 2px rgba(22, 32, 27, 0.06),
    0 12px 40px rgba(22, 32, 27, 0.08);
}

[data-variant="sage"] .login-intro {
  text-align: center;
  align-items: center;
}

/* The art panel becomes the row of sample chips above the card. */
[data-variant="sage"] .login-art {
  order: 1;
  position: static;
  flex-grow: 0;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 0;
  padding: 24px 0 0;
  background: transparent;
  border-radius: 0;
  overflow: visible;
}

[data-variant="sage"] .art-card {
  position: static;
  width: auto;
  height: auto;
  gap: 0;
  padding: 0 16px;
  min-height: 40px;
  border-radius: 12px;
  transform: none;
  box-shadow: none;
  background: #e1e7fb;
}

[data-variant="sage"] .art-card b {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  color: #243c9e;
}

[data-variant="sage"] .art-card.two {
  background: #fbe4da;
}

[data-variant="sage"] .art-card.two b {
  color: #9a3f1e;
}

[data-variant="sage"] .art-card.three {
  background: #f6ebcb;
}

[data-variant="sage"] .art-card.three b {
  color: #7a5a0e;
}

[data-variant="sage"] .art-card span {
  display: none;
}

[data-variant="sage"] .login-art p {
  flex-basis: 100%;
  margin: 0;
  max-width: none;
  text-align: center;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--muted);
}

@media (max-width: 900px) {
  [data-variant="sage"] .login-art {
    display: flex;
  }
}