/* ============================================================
   theblockchainoracle — components
   Depends on tokens.css. Class prefix: .tbo-
   Use BEM-ish: .tbo-component[__element][--modifier]
   ============================================================ */

* { box-sizing: border-box; }

/* ---------- Layout ---------- */
.tbo-container {
  max-width: var(--tbo-container);
  margin-inline: auto;
  padding-inline: var(--tbo-gutter);
}
.tbo-container--narrow { max-width: 760px; }
.tbo-container--wide   { max-width: 1440px; }

.tbo-stack       { display: flex; flex-direction: column; gap: var(--tbo-space-4); }
.tbo-stack--sm   { gap: var(--tbo-space-2); }
.tbo-stack--lg   { gap: var(--tbo-space-7); }
.tbo-row         { display: flex; gap: var(--tbo-space-4); align-items: center; }
.tbo-row--wrap   { flex-wrap: wrap; }
.tbo-row--between{ justify-content: space-between; }

.tbo-grid        { display: grid; gap: var(--tbo-space-6); }
.tbo-grid--2     { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tbo-grid--3     { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.tbo-grid--4     { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 760px) {
  .tbo-grid--2, .tbo-grid--3, .tbo-grid--4 { grid-template-columns: 1fr; }
}

/* ---------- Type ---------- */
.tbo-display-xl,
.tbo-display-l,
.tbo-display-m,
.tbo-display-s {
  font-family: var(--tbo-font-display);
  font-weight: var(--tbo-fw-medium);
  line-height: var(--tbo-lh-display);
  letter-spacing: var(--tbo-tracking-display);
  color: var(--tbo-fg);
  margin: 0;
}
.tbo-display-xl { font-size: var(--tbo-fs-display-xl); }
.tbo-display-l  { font-size: var(--tbo-fs-display-l); }
.tbo-display-m  { font-size: var(--tbo-fs-display-m); }
.tbo-display-s  { font-size: var(--tbo-fs-display-s); }

.tbo-h1, .tbo-h2, .tbo-h3, .tbo-h4 {
  font-family: var(--tbo-font-display);
  font-weight: var(--tbo-fw-semi);
  line-height: var(--tbo-lh-heading);
  letter-spacing: var(--tbo-tracking-heading);
  color: var(--tbo-fg);
  margin: 0;
}
.tbo-h1 { font-size: var(--tbo-fs-h1); }
.tbo-h2 { font-size: var(--tbo-fs-h2); }
.tbo-h3 { font-size: var(--tbo-fs-h3); }
.tbo-h4 { font-size: var(--tbo-fs-h4); }

.tbo-lede {
  font-size: var(--tbo-fs-body-l);
  line-height: 1.5;
  color: var(--tbo-fg-muted);
  letter-spacing: -0.01em;
  margin: 0;
}
.tbo-body  { font-size: var(--tbo-fs-body);  margin: 0; }
.tbo-body-s{ font-size: var(--tbo-fs-body-s); color: var(--tbo-fg-muted); margin: 0; }

.tbo-eyebrow {
  font-family: var(--tbo-font-mono);
  font-size: var(--tbo-fs-micro);
  letter-spacing: var(--tbo-tracking-caption);
  text-transform: uppercase;
  color: var(--tbo-fg-muted);
  margin: 0;
}
.tbo-mono {
  font-family: var(--tbo-font-mono);
  font-size: var(--tbo-fs-caption);
  letter-spacing: 0;
  color: var(--tbo-fg-muted);
}

.tbo-link {
  color: var(--tbo-fg);
  text-decoration: underline;
  text-decoration-color: var(--tbo-border-strong);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: text-decoration-color var(--tbo-dur) var(--tbo-ease);
}
.tbo-link:hover { text-decoration-color: var(--tbo-accent); color: var(--tbo-accent); }

/* ---------- Buttons ---------- */
.tbo-btn {
  --_bg: var(--tbo-fg);
  --_fg: var(--tbo-surface);
  --_bd: var(--tbo-fg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--tbo-space-2);
  height: 44px;
  padding: 0 20px;
  background: var(--_bg);
  color: var(--_fg);
  border: 1px solid var(--_bd);
  border-radius: var(--tbo-radius-2);
  font-family: var(--tbo-font-display);
  font-weight: var(--tbo-fw-medium);
  font-size: var(--tbo-fs-body-s);
  letter-spacing: -0.005em;
  line-height: 1;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--tbo-dur-fast) var(--tbo-ease),
              background var(--tbo-dur) var(--tbo-ease),
              border-color var(--tbo-dur) var(--tbo-ease),
              color var(--tbo-dur) var(--tbo-ease);
  white-space: nowrap;
}
.tbo-btn:active { transform: translateY(1px); }
.tbo-btn:disabled { opacity: 0.45; cursor: not-allowed; }

.tbo-btn--sm { height: 32px; padding: 0 14px; font-size: var(--tbo-fs-caption); }
.tbo-btn--lg { height: 52px; padding: 0 28px; font-size: var(--tbo-fs-body); }

.tbo-btn--primary   { /* default already primary */ }
.tbo-btn--primary:hover { background: var(--tbo-accent); border-color: var(--tbo-accent); }

.tbo-btn--secondary {
  --_bg: transparent;
  --_fg: var(--tbo-fg);
  --_bd: var(--tbo-border-strong);
}
.tbo-btn--secondary:hover { --_bg: var(--tbo-ink-06); --_bd: var(--tbo-fg); }

.tbo-btn--ghost {
  --_bg: transparent;
  --_fg: var(--tbo-fg);
  --_bd: transparent;
}
.tbo-btn--ghost:hover { --_bg: var(--tbo-ink-06); }

.tbo-btn--accent  { --_bg: var(--tbo-accent); --_bd: var(--tbo-accent); --_fg: var(--tbo-bone); }
.tbo-btn--danger  { --_bg: var(--tbo-danger); --_bd: var(--tbo-danger); --_fg: var(--tbo-bone); }

/* ---------- Form controls ---------- */
.tbo-field { display: flex; flex-direction: column; gap: var(--tbo-space-2); }
.tbo-label {
  font-family: var(--tbo-font-mono);
  font-size: var(--tbo-fs-micro);
  text-transform: uppercase;
  letter-spacing: var(--tbo-tracking-caption);
  color: var(--tbo-fg-muted);
}
.tbo-input,
.tbo-textarea,
.tbo-select {
  appearance: none;
  width: 100%;
  font-family: var(--tbo-font-body);
  font-size: var(--tbo-fs-body);
  color: var(--tbo-fg);
  background: var(--tbo-surface);
  border: 1px solid var(--tbo-border-strong);
  border-radius: var(--tbo-radius-2);
  padding: 12px 14px;
  line-height: 1.4;
  transition: border-color var(--tbo-dur) var(--tbo-ease),
              box-shadow var(--tbo-dur) var(--tbo-ease);
}
.tbo-input:focus,
.tbo-textarea:focus,
.tbo-select:focus {
  outline: none;
  border-color: var(--tbo-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tbo-accent) 18%, transparent);
}
.tbo-textarea { min-height: 120px; resize: vertical; }
.tbo-select {
  background-image:
    linear-gradient(45deg, transparent 50%, var(--tbo-fg) 50%),
    linear-gradient(135deg, var(--tbo-fg) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  padding-right: 36px;
}
.tbo-checkbox, .tbo-radio {
  appearance: none;
  width: 18px; height: 18px;
  border: 1px solid var(--tbo-border-strong);
  background: var(--tbo-surface);
  cursor: pointer;
  position: relative;
  transition: background var(--tbo-dur) var(--tbo-ease), border-color var(--tbo-dur) var(--tbo-ease);
}
.tbo-checkbox { border-radius: 4px; }
.tbo-radio    { border-radius: 999px; }
.tbo-checkbox:checked,
.tbo-radio:checked { background: var(--tbo-fg); border-color: var(--tbo-fg); }
.tbo-checkbox:checked::after {
  content: ""; position: absolute; left: 5px; top: 1px;
  width: 5px; height: 10px;
  border-right: 2px solid var(--tbo-bone);
  border-bottom: 2px solid var(--tbo-bone);
  transform: rotate(45deg);
}
.tbo-radio:checked::after {
  content: ""; position: absolute; inset: 4px;
  border-radius: 999px; background: var(--tbo-bone);
}

/* ---------- Badge / Pill ---------- */
.tbo-badge {
  display: inline-flex; align-items: center; gap: 6px;
  height: 22px; padding: 0 10px;
  font-family: var(--tbo-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--tbo-ink-06);
  color: var(--tbo-fg);
  border-radius: var(--tbo-radius-pill);
}
.tbo-badge--accent  { background: color-mix(in srgb, var(--tbo-accent) 14%, transparent); color: var(--tbo-accent); }
.tbo-badge--success { background: color-mix(in srgb, var(--tbo-success) 14%, transparent); color: var(--tbo-success); }
.tbo-badge--warning { background: color-mix(in srgb, var(--tbo-warning) 22%, transparent); color: #6b4f10; }
.tbo-badge--danger  { background: color-mix(in srgb, var(--tbo-danger) 14%, transparent); color: var(--tbo-danger); }
.tbo-badge--solid   { background: var(--tbo-fg); color: var(--tbo-surface); }
.tbo-badge--dot::before {
  content: ""; width: 6px; height: 6px; border-radius: 999px;
  background: currentColor;
}

/* ---------- Card ---------- */
.tbo-card {
  background: var(--tbo-surface);
  border: 1px solid var(--tbo-border);
  border-radius: var(--tbo-radius-3);
  padding: var(--tbo-space-6);
  display: flex;
  flex-direction: column;
  gap: var(--tbo-space-4);
}
.tbo-card--quiet  { background: transparent; }
.tbo-card--accent { border-color: var(--tbo-accent); }
.tbo-card--ink    { background: var(--tbo-ink); color: var(--tbo-bone); border-color: transparent; }
.tbo-card--ink .tbo-eyebrow,
.tbo-card--ink .tbo-body-s { color: rgba(244,241,234,0.6); }

.tbo-card__header { display: flex; align-items: baseline; justify-content: space-between; gap: var(--tbo-space-4); }
.tbo-card__title  { font-family: var(--tbo-font-display); font-weight: var(--tbo-fw-semi); font-size: var(--tbo-fs-h3); letter-spacing: var(--tbo-tracking-heading); line-height: 1.2; margin: 0; }
.tbo-card__footer { display: flex; align-items: center; justify-content: space-between; gap: var(--tbo-space-3); border-top: 1px solid var(--tbo-border); padding-top: var(--tbo-space-4); }

/* Stat card */
.tbo-stat {
  display: flex; flex-direction: column; gap: 6px;
  padding: var(--tbo-space-5);
  background: var(--tbo-surface);
  border: 1px solid var(--tbo-border);
  border-radius: var(--tbo-radius-3);
}
.tbo-stat__label {
  font-family: var(--tbo-font-mono);
  font-size: var(--tbo-fs-micro);
  text-transform: uppercase;
  letter-spacing: var(--tbo-tracking-caption);
  color: var(--tbo-fg-muted);
}
.tbo-stat__value {
  font-family: var(--tbo-font-display);
  font-weight: var(--tbo-fw-medium);
  font-size: 44px;
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--tbo-fg);
  font-feature-settings: "tnum" 1;
}
.tbo-stat__delta {
  font-family: var(--tbo-font-mono);
  font-size: var(--tbo-fs-caption);
  color: var(--tbo-success);
}
.tbo-stat__delta--down { color: var(--tbo-danger); }

/* Feature card — for product features */
.tbo-feature {
  display: flex; gap: var(--tbo-space-5);
  padding: var(--tbo-space-6);
  background: var(--tbo-surface);
  border: 1px solid var(--tbo-border);
  border-radius: var(--tbo-radius-3);
}
.tbo-feature__mark { width: 56px; height: 56px; flex: 0 0 56px; }
.tbo-feature__body { display: flex; flex-direction: column; gap: 6px; }

/* ---------- Table ---------- */
.tbo-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--tbo-fs-body-s);
  background: var(--tbo-surface);
}
.tbo-table th,
.tbo-table td { padding: 14px 16px; text-align: left; }
.tbo-table thead th {
  font-family: var(--tbo-font-mono);
  font-weight: 500;
  font-size: var(--tbo-fs-micro);
  text-transform: uppercase;
  letter-spacing: var(--tbo-tracking-caption);
  color: var(--tbo-fg-muted);
  border-bottom: 1px solid var(--tbo-border-strong);
}
.tbo-table tbody tr + tr td { border-top: 1px solid var(--tbo-border); }
.tbo-table tbody tr:hover { background: var(--tbo-ink-06); }
.tbo-table--num td:last-child,
.tbo-table--num th:last-child { text-align: right; font-variant-numeric: tabular-nums; }

/* ---------- Navigation / Header ---------- */
.tbo-nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--tbo-space-5) 0;
  border-bottom: 1px solid var(--tbo-border);
}
.tbo-nav__brand {
  display: flex; align-items: center; gap: var(--tbo-space-3);
  text-decoration: none; color: var(--tbo-fg);
}
.tbo-nav__brand img,
.tbo-nav__brand svg { width: 28px; height: 28px; }
.tbo-nav__brand-text {
  font-family: var(--tbo-font-display);
  font-weight: var(--tbo-fw-medium);
  font-size: var(--tbo-fs-body-l);
  letter-spacing: -0.02em;
}
.tbo-nav__links { display: flex; gap: var(--tbo-space-6); align-items: center; }
.tbo-nav__link {
  color: var(--tbo-fg);
  text-decoration: none;
  font-size: var(--tbo-fs-body-s);
  font-weight: 500;
  opacity: 0.7;
  transition: opacity var(--tbo-dur) var(--tbo-ease);
}
.tbo-nav__link:hover,
.tbo-nav__link[aria-current="page"] { opacity: 1; }

/* ---------- Footer ---------- */
.tbo-footer {
  border-top: 1px solid var(--tbo-border);
  padding: var(--tbo-space-9) 0;
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: var(--tbo-space-8);
}
.tbo-footer__col { display: flex; flex-direction: column; gap: var(--tbo-space-2); }

/* ---------- Tabs ---------- */
.tbo-tabs { display: inline-flex; border-bottom: 1px solid var(--tbo-border); gap: 0; }
.tbo-tab {
  padding: 12px 16px;
  font-family: var(--tbo-font-display);
  font-weight: 500;
  font-size: var(--tbo-fs-body-s);
  color: var(--tbo-fg-muted);
  background: none; border: none; cursor: pointer;
  border-bottom: 1px solid transparent;
  margin-bottom: -1px;
  transition: color var(--tbo-dur) var(--tbo-ease), border-color var(--tbo-dur) var(--tbo-ease);
}
.tbo-tab:hover { color: var(--tbo-fg); }
.tbo-tab[aria-selected="true"] { color: var(--tbo-fg); border-bottom-color: var(--tbo-fg); }

/* ---------- Divider / Section eyebrow ---------- */
.tbo-divider { height: 1px; background: var(--tbo-border); border: 0; margin: 0; }
.tbo-section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: var(--tbo-space-4);
  padding-bottom: var(--tbo-space-4);
  border-bottom: 1px solid var(--tbo-border);
  margin-bottom: var(--tbo-space-6);
}

/* ---------- Code ---------- */
.tbo-code {
  font-family: var(--tbo-font-mono);
  font-size: 13px;
  background: var(--tbo-ink);
  color: var(--tbo-bone);
  padding: var(--tbo-space-5);
  border-radius: var(--tbo-radius-3);
  overflow: auto;
  line-height: 1.55;
}
.tbo-code--inline {
  display: inline;
  padding: 2px 6px;
  font-size: 0.92em;
  background: var(--tbo-ink-06);
  color: var(--tbo-fg);
  border-radius: var(--tbo-radius-1);
}

/* ---------- Avatar / Mark slot ---------- */
.tbo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  border-radius: var(--tbo-radius-2);
  background: var(--tbo-surface);
  box-shadow: var(--tbo-shadow-1);
}
.tbo-mark img, .tbo-mark svg { width: 72%; height: 72%; }
.tbo-mark--sm { width: 32px; height: 32px; }
.tbo-mark--lg { width: 72px; height: 72px; }

/* ---------- Banner / Callout ---------- */
.tbo-callout {
  display: flex; gap: var(--tbo-space-4);
  padding: var(--tbo-space-5);
  border: 1px solid var(--tbo-border-strong);
  border-left: 3px solid var(--tbo-accent);
  border-radius: var(--tbo-radius-2);
  background: var(--tbo-surface);
}
.tbo-callout__body { display: flex; flex-direction: column; gap: 4px; }