/* Reusable Signoff baseline patterns (customer-workspace-v2 / Direction A) */

.os-prose {
  max-width: var(--os-prose-max);
}

.os-readable {
  max-width: var(--os-readable-max, 760px);
  margin-left: auto;
  margin-right: auto;
}

.os-split {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: flex-start;
}

.os-split__main {
  flex: 100 1 520px;
  min-width: 0;
  display: grid;
  gap: 22px;
}

.os-split__side {
  flex: 1 1 316px;
  min-width: 0;
  display: grid;
  gap: 18px;
}

.os-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.os-panel__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--hairline);
}

.os-panel__title {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.os-panel__meta {
  font-size: 12.5px;
  color: var(--ink-4);
}

.os-panel__action {
  margin-left: auto;
  font-size: 13px;
  font-weight: 500;
}

.os-panel__body {
  padding: 18px 20px;
}

/* Section labels — calm uppercase heads (read views) */
.os-block {
  margin-bottom: 28px;
}

.os-block-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.os-block-head h2,
.os-block-head h3,
.os-section-label {
  margin: 0;
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-4);
}

.os-quiet {
  color: var(--ink-4);
  font-size: 13px;
}

.os-metric-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 0 0 22px;
}

.os-metric {
  background: var(--surface);
  padding: 12px 16px;
  box-shadow: 0 0 0 0.5px var(--border);
}

.os-metric__label {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-4);
  font-weight: 500;
}

.os-metric__value {
  margin-top: 4px;
  font-size: 14px;
  font-weight: 500;
}

.os-metric__value--mono {
  font-family: var(--font-mono);
}

.os-metric__value--danger {
  color: var(--danger-ink);
}

/* Tabs — segmented or underline */
.os-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.os-tab {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 12px;
  border-radius: 6px;
  border: 0;
  background: transparent;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-3);
  cursor: pointer;
  text-decoration: none;
}

.os-tab:hover {
  background: var(--surface-3);
  text-decoration: none;
  color: var(--ink);
}

.os-tab.is-active,
.os-tab[aria-current="page"] {
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
  font-weight: 600;
}

.os-tabs--underline {
  gap: 0;
  border-bottom: 1px solid var(--border);
}

.os-tabs--underline .os-tab {
  height: auto;
  padding: 10px 14px;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: var(--ink-3);
  font-weight: 500;
}

.os-tabs--underline .os-tab:hover {
  background: transparent;
  color: var(--ink);
}

.os-tabs--underline .os-tab.is-active,
.os-tabs--underline .os-tab[aria-current="page"] {
  background: transparent;
  color: var(--ink);
  box-shadow: none;
  font-weight: 600;
}

.os-tabs--underline .os-tab.is-active::after,
.os-tabs--underline .os-tab[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -1px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px 2px 0 0;
}

.os-tab__count {
  font-family: var(--font-mono);
  font-size: 11.5px;
  opacity: 0.7;
}

.os-seg {
  display: inline-flex;
  background: var(--surface-3);
  border-radius: 8px;
  padding: 3px;
}

.os-seg button,
.os-seg__btn {
  border: 0;
  background: transparent;
  padding: 6px 12px;
  border-radius: 6px;
  font: inherit;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-3);
  cursor: pointer;
}

.os-seg button.on,
.os-seg button.is-active,
.os-seg__btn.on,
.os-seg__btn.is-active {
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

/* Compact empty / quiet absence — prefer over giant empty cards */
.os-empty-frame {
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 20px 18px;
  text-align: left;
  background: transparent;
}

.os-empty-frame h2,
.os-empty-frame .os-empty-title {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.os-empty-frame p,
.os-empty-frame .os-empty-text {
  margin: 5px 0 0;
  font-size: 13px;
  color: var(--ink-3);
}

.os-empty-quiet {
  padding: 10px 0;
  color: var(--ink-4);
  font-size: 13.5px;
  border-top: 1px solid var(--border);
}

.os-empty--compact {
  padding: 14px 0;
  text-align: left;
  border: 0;
  border-top: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  color: var(--ink-4);
  font-size: 13.5px;
}

.os-mono {
  font-family: var(--font-mono);
}

.os-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: var(--surface-3);
  color: var(--ink-3);
  font-size: 11.5px;
  font-weight: 600;
  flex: none;
}

.os-avatar--accent {
  background: var(--accent-soft);
  color: var(--accent);
}

.os-avatar--lg {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  font-size: 15px;
}

.os-avatar--round {
  border-radius: 50%;
}

/* Status — restrained chips */
.os-status {
  display: inline-block;
  font-size: 11px;
  font-weight: 650;
  padding: 2px 7px;
  border-radius: 999px;
  line-height: 1.3;
  background: var(--muted-bg);
  color: var(--muted-ink);
}

.os-status--ok {
  background: var(--ok-bg);
  color: var(--ok-ink);
}

.os-status--warn {
  background: var(--warn-bg);
  color: var(--warn-ink);
}

.os-status--danger {
  background: var(--danger-bg);
  color: var(--danger-ink);
}

.os-status--info {
  background: var(--info-bg);
  color: var(--info-ink);
}

.os-status--accent {
  background: var(--accent-soft);
  color: var(--accent);
}

/* Attention callout — only when something needs action */
.os-attention {
  background: var(--warn-bg);
  border: 1px solid var(--warn-bd);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.os-attention__label {
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--warn-ink);
  margin-bottom: 4px;
}

.os-attention__title {
  font-weight: 600;
  color: var(--ink);
}

.os-attention__sub {
  color: var(--ink-3);
  font-size: 13px;
  margin-top: 2px;
}

.os-attention__actions {
  margin-left: auto;
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* Menus / intentional add actions */
.os-add {
  position: relative;
}

.os-add__btn .os-add__chev {
  font-size: 10px;
  margin-left: 2px;
  opacity: 0.85;
}

.os-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 220px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
  padding: 6px;
  z-index: 20;
}

.os-menu[hidden] {
  display: none !important;
}

.os-add.is-open .os-menu {
  display: block;
}

.os-menu__hint {
  margin: 0;
  font-size: 11.5px;
  color: var(--ink-4);
  padding: 4px 10px 6px;
}

.os-menu__item {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 9px 10px;
  border-radius: 7px;
  font: inherit;
  font-size: 13.5px;
  cursor: pointer;
  color: var(--ink-2);
  text-decoration: none;
}

.os-menu__item:hover {
  background: var(--surface-3);
  color: var(--ink);
  text-decoration: none;
}

.os-menu__sep {
  height: 1px;
  background: var(--border);
  margin: 4px 6px;
}

.os-linkish {
  border: 0;
  background: transparent;
  padding: 0;
  font: inherit;
  color: var(--accent);
  font-weight: 550;
  font-size: 13px;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.os-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
}

.os-fact dt {
  font-size: 11.5px;
  color: var(--ink-4);
  margin-bottom: 2px;
}

.os-fact dd {
  margin: 0;
  color: var(--ink-2);
}

@media (max-width: 720px) {
  .os-page-actions {
    width: 100%;
  }

  .os-page-actions .btn.primary,
  .os-page-actions .os-button-primary,
  .os-page-actions .os-btn-primary {
    flex: 1 1 auto;
  }

  .os-facts {
    grid-template-columns: 1fr;
  }

  .os-attention {
    flex-wrap: wrap;
  }

  .os-attention__actions {
    margin-left: 0;
    width: 100%;
  }
}