/* =============================================================================
   Heliotec design-system components + style-guide page chrome.
   All values reference tokens from tokens.css — no hard-coded hex here.
   ============================================================================= */

/* --- Page chrome ---------------------------------------------------------- */
.ds-board {
  /* Ambient background reproduced from the source HTML prototype: a dark base
     (--ds-bg = #0a0d1a) with two soft, fixed radial "glow" blobs below. */
  background: var(--ds-bg);
  color: var(--ds-text);
  font-family: var(--ds-font);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  margin: 0;
  position: relative;
  overflow-x: hidden;
}
.ds-board::before {
  content: "";
  position: fixed;
  top: -20%;
  left: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(90, 60, 180, 0.18), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.ds-board::after {
  content: "";
  position: fixed;
  top: 10%;
  right: -10%;
  width: 50%;
  height: 70%;
  background: radial-gradient(ellipse at center, rgba(40, 80, 200, 0.15), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.ds-page { max-width: 1280px; margin: 0 auto; padding: 56px 48px 96px; position: relative; z-index: 1; }
.ds-header { margin-bottom: 12px; }
.ds-header h1 { font-size: 32px; font-weight: 700; letter-spacing: -0.8px; margin: 0 0 8px; }
.ds-header p { color: var(--ds-text-dim); font-size: 16px; margin: 0; max-width: 760px; line-height: 1.5; }
.ds-section { margin-top: 56px; }
.ds-section > h2 { font-size: var(--ds-fs-section); font-weight: var(--ds-fw-section); letter-spacing: -0.5px; margin: 0 0 6px; }
.ds-section > .ds-sub { color: var(--ds-text-dim); font-size: 14px; margin: 0 0 18px; }
.ds-eyebrow { font-size: var(--ds-fs-eyebrow); font-weight: 600; letter-spacing: 1.4px; color: var(--ds-text-muted); text-transform: uppercase; margin: 22px 0 12px; }
.ds-card { background: var(--ds-surface); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border: 1px solid var(--ds-border); border-radius: var(--ds-radius-lg); }

/* --- Colour swatches ------------------------------------------------------ */
.ds-swatch-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.ds-swatch__chip { height: 76px; border-radius: 12px; border: 1px solid var(--ds-border-strong); }
.ds-swatch__name { font-size: 13px; font-weight: 600; margin-top: 8px; }
.ds-swatch__meta { font-size: 12px; color: var(--ds-text-muted); }

/* --- Brand palette ramps -------------------------------------------------- */
.ds-ramp-grid { display: flex; gap: 12px; flex-wrap: wrap; }
.ds-ramp { width: 156px; border-radius: 12px; overflow: hidden; border: 1px solid var(--ds-border-strong); }
.ds-ramp__head { padding: 16px 14px 20px; }
.ds-ramp__role { font-size: 10px; text-transform: uppercase; letter-spacing: 1px; opacity: 0.75; }
.ds-ramp__name { font-size: 13px; font-weight: 700; letter-spacing: 0.4px; margin-top: 2px; }
.ds-ramp__hex { font-size: 11px; opacity: 0.85; margin-top: 2px; }
.ds-ramp__var { font-size: 10.5px; opacity: 0.75; margin-top: 3px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.ds-ramp__cell { padding: 8px 14px; display: flex; flex-direction: column; gap: 1px; }
.ds-ramp__cellhex { font-size: 10.5px; }
.ds-ramp__cellvar { font-size: 9.5px; opacity: 0.7; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

/* --- Typography specimens ------------------------------------------------- */
.ds-type-list { display: flex; flex-direction: column; }
.ds-type-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 16px 0; border-bottom: 1px solid var(--ds-border); }
.ds-type-row:last-child { border-bottom: none; }
.ds-type-row .ds-type-spec { font-size: 12px; color: var(--ds-text-muted); white-space: nowrap; }

/* --- Spacing & radius ----------------------------------------------------- */
.ds-scale-cols { display: flex; gap: 80px; flex-wrap: wrap; }
.ds-radius-row { display: flex; gap: 16px; align-items: flex-end; }
.ds-radius-tile { width: 76px; height: 76px; background: rgba(234, 246, 114, 0.12); border: 1px solid rgba(234, 246, 114, 0.5); }
.ds-radius-label { font-size: 12px; color: var(--ds-text-muted); margin-top: 8px; }
.ds-space-row { display: flex; align-items: center; gap: 14px; margin-bottom: 10px; }
.ds-space-bar { height: 18px; background: var(--ds-accent); border-radius: 3px; }
.ds-space-label { font-size: 12px; color: var(--ds-text-dim); }

/* --- Iconography ---------------------------------------------------------- */
.ds-icon-row { display: flex; gap: 16px; flex-wrap: wrap; }
.ds-icon-tile { display: flex; flex-direction: column; align-items: center; gap: 10px; width: 120px; }
.ds-icon-tile .ds-icon-box { width: 56px; height: 56px; border-radius: 12px; background: var(--ds-surface); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); border: 1px solid var(--ds-border); display: flex; align-items: center; justify-content: center; color: var(--ds-text-dim); font-size: 22px; }
.ds-icon-tile span { font-size: 12px; color: var(--ds-text-muted); }

/* --- Component demo layout ------------------------------------------------ */
.ds-demo { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start; }
.ds-demo--stack { flex-direction: column; }
.ds-usage { font-size: 12px; color: var(--ds-text-muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; margin: 6px 0 0; }

/* =============================================================================
   Components
   ============================================================================= */

/* CountChip */
.ds-count-chip { display: inline-flex; align-items: center; padding: 1px 8px; border-radius: var(--ds-radius-pill); background: rgba(255, 255, 255, 0.06); font-size: var(--ds-fs-eyebrow); font-weight: 600; color: var(--ds-text-muted); }
.ds-count-chip--active { background: rgba(234, 246, 114, 0.16); color: var(--ds-accent); }

/* Status dot helpers */
.ds-dot--alert { background: var(--ds-alert); }
.ds-dot--warning { background: var(--ds-warning); }
.ds-dot--positive { background: var(--ds-positive); }

/* RagPill */
.ds-rag-pill { display: inline-flex; align-items: center; gap: 8px; padding: 5px 11px 5px 8px; border-radius: var(--ds-radius-pill); font-size: var(--ds-fs-eyebrow); font-weight: 600; letter-spacing: 1.2px; text-transform: uppercase; }
.ds-rag-pill__dot { width: 7px; height: 7px; border-radius: 50%; }
.ds-rag-pill--alert { background: rgba(255, 106, 97, 0.12); color: var(--ds-alert-soft); }
.ds-rag-pill--alert .ds-rag-pill__dot { background: var(--ds-alert); }
.ds-rag-pill--warning { background: rgba(243, 168, 38, 0.12); color: var(--ds-warning-soft); }
.ds-rag-pill--warning .ds-rag-pill__dot { background: var(--ds-warning); }
.ds-rag-pill--positive { background: rgba(108, 212, 116, 0.10); color: var(--ds-positive-soft); }
.ds-rag-pill--positive .ds-rag-pill__dot { background: var(--ds-positive); }
.ds-rag-pill--grey { background: rgba(255, 255, 255, 0.05); color: var(--ds-text-muted); }
.ds-rag-pill--grey .ds-rag-pill__dot { background: var(--ds-tech); }

/* FilterPill */
.ds-filter-pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px 6px 10px; border-radius: var(--ds-radius-pill); background: rgba(255, 255, 255, 0.03); border: 1px solid var(--ds-border-strong); color: var(--ds-text-dim); font-size: 12.5px; font-weight: 500; }
.ds-filter-pill--active { background: rgba(234, 246, 114, 0.08); border-color: rgba(234, 246, 114, 0.3); color: var(--ds-accent); }
.ds-filter-pill__dot { width: 7px; height: 7px; border-radius: 50%; }

/* DropdownControl */
.ds-dropdown { display: inline-flex; align-items: center; gap: 10px; padding: 8px 14px 8px 16px; border-radius: var(--ds-radius-md); background: rgba(255, 255, 255, 0.03); border: 1px solid var(--ds-border-strong); font-size: var(--ds-fs-secondary); }
.ds-dropdown__kicker { font-size: var(--ds-fs-eyebrow); letter-spacing: 1px; text-transform: uppercase; color: var(--ds-text-muted); }
.ds-dropdown__value { font-weight: 500; color: var(--ds-text); }
.ds-dropdown__caret { font-size: 9px; color: var(--ds-text-dim); transition: transform 0.15s; }

/* DropdownControl — interactive variant (menu wired up by dropdown_control.js) */
.ds-dropdown--interactive { position: relative; display: inline-block; padding: 0; border: 0; background: transparent; }
.ds-dropdown__trigger { display: inline-flex; align-items: center; gap: 10px; padding: 8px 14px 8px 16px; border-radius: var(--ds-radius-md); background: rgba(255, 255, 255, 0.03); border: 1px solid var(--ds-border-strong); font-size: var(--ds-fs-secondary); font-family: var(--ds-font); color: var(--ds-text); cursor: pointer; transition: background 0.15s, border-color 0.15s; }
.ds-dropdown__trigger:hover { background: rgba(255, 255, 255, 0.07); border-color: var(--ds-border-strong); }
.ds-dropdown__trigger:focus-visible { outline: 2px solid var(--ds-accent); outline-offset: 2px; }
/* When open, lift the whole control into its own stacking context above sibling
   cards/charts so the menu is unambiguously on top for paint AND hit-testing. */
.ds-dropdown--interactive.is-open { z-index: 1000; }
.ds-dropdown--interactive.is-open .ds-dropdown__caret { transform: rotate(180deg); }
.ds-dropdown__menu { position: absolute; top: calc(100% + 6px); right: 0; min-width: 100%; max-height: 320px; overflow-y: auto; margin: 0; padding: 6px; list-style: none; z-index: 40; background: var(--ds-surface-card-solid); border: 1px solid var(--ds-border-strong); border-radius: var(--ds-radius-md); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45); display: none; }
.ds-dropdown--interactive.is-open .ds-dropdown__menu { display: block; }
.ds-dropdown__item { padding: 8px 12px; border-radius: var(--ds-radius-sm); font-size: var(--ds-fs-secondary); color: var(--ds-text-dim); white-space: nowrap; cursor: pointer; }
.ds-dropdown__item:hover, .ds-dropdown__item.is-active { background: rgba(255, 255, 255, 0.07); color: var(--ds-text); }
.ds-dropdown__item.is-selected { color: var(--ds-accent); background: rgba(234, 246, 114, 0.08); }

/* MultiSelect — searchable multi-select (e.g. Carbon page site switcher).
   Behaviour wired up by multi_select.js; emits ds:multiselect-change. */
.ds-multiselect { position: relative; display: inline-block; }
.ds-multiselect.is-open { z-index: 1000; }
.ds-multiselect__trigger { display: inline-flex; align-items: center; gap: 10px; max-width: 360px; padding: 9px 14px; border-radius: var(--ds-radius-md); background: rgba(255, 255, 255, 0.03); border: 1px solid var(--ds-border-strong); font-size: var(--ds-fs-secondary); font-family: var(--ds-font); color: var(--ds-text); cursor: pointer; transition: background 0.15s, border-color 0.15s; }
.ds-multiselect__trigger:hover { background: rgba(255, 255, 255, 0.07); border-color: var(--ds-border-strong); }
.ds-multiselect__trigger:focus-visible { outline: 2px solid var(--ds-accent); outline-offset: 2px; }
.ds-multiselect__kicker { font-size: var(--ds-fs-eyebrow); letter-spacing: 1.1px; text-transform: uppercase; color: var(--ds-text-muted); }
.ds-multiselect__value { font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ds-multiselect__caret { margin-left: 2px; font-size: 9px; color: var(--ds-text-dim); transition: transform 0.18s; }
.ds-multiselect.is-open .ds-multiselect__caret { transform: rotate(180deg); }
.ds-multiselect__menu { position: absolute; top: calc(100% + 6px); right: 0; min-width: 320px; z-index: 40; padding: 8px; background: var(--ds-surface-card-solid); border: 1px solid var(--ds-border-strong); border-radius: var(--ds-radius-lg); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.55); display: none; }
.ds-multiselect.is-open .ds-multiselect__menu { display: block; }
.ds-multiselect__search { padding: 2px 2px 8px; }
.ds-multiselect__search-input { width: 100%; padding: 9px 11px; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--ds-border-strong); border-radius: var(--ds-radius-sm); color: var(--ds-text); font-family: var(--ds-font); font-size: var(--ds-fs-secondary); outline: none; }
.ds-multiselect__search-input:focus { border-color: var(--ds-accent); }
.ds-multiselect__search-input::placeholder { color: var(--ds-text-muted); }
.ds-multiselect__count { padding: 2px 6px 8px; font-size: var(--ds-fs-eyebrow); letter-spacing: 1.2px; text-transform: uppercase; color: var(--ds-text-muted); font-weight: 600; }
.ds-multiselect__list { max-height: 340px; overflow-y: auto; display: flex; flex-direction: column; gap: 2px; }
.ds-multiselect__item { display: flex; align-items: center; gap: 11px; width: 100%; padding: 7px 10px; border: none; border-radius: var(--ds-radius-sm); background: transparent; font-family: var(--ds-font); font-size: var(--ds-fs-secondary); color: var(--ds-text); text-align: left; cursor: pointer; }
.ds-multiselect__item:hover { background: rgba(255, 255, 255, 0.05); }
.ds-multiselect__item.is-selected { background: rgba(234, 246, 114, 0.06); }
.ds-multiselect__dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.ds-multiselect__dot--alert { background: var(--ds-alert); box-shadow: 0 0 6px var(--ds-alert); }
.ds-multiselect__dot--warning { background: var(--ds-warning); box-shadow: 0 0 6px var(--ds-warning); }
.ds-multiselect__dot--positive { background: var(--ds-positive); box-shadow: 0 0 6px var(--ds-positive); }
.ds-multiselect__dot--grey { background: var(--ds-text-muted); }
.ds-multiselect__dot--all { background: var(--ds-accent); box-shadow: 0 0 6px rgba(234, 246, 114, 0.4); }
.ds-multiselect__text { display: flex; flex-direction: column; gap: 2px; flex: 1; min-width: 0; }
.ds-multiselect__name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ds-multiselect__item.is-selected .ds-multiselect__name { color: var(--ds-accent); }
.ds-multiselect__sub { font-size: 11px; color: var(--ds-text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ds-multiselect__check { width: 14px; height: 14px; flex: none; color: var(--ds-accent); opacity: 0; }
.ds-multiselect__item.is-selected .ds-multiselect__check { opacity: 1; }
.ds-multiselect__item--disabled { opacity: 0.4; cursor: not-allowed; }
.ds-multiselect__item--disabled:hover { background: transparent; }
.ds-multiselect__empty { padding: 16px 12px; text-align: center; font-size: var(--ds-fs-secondary); color: var(--ds-text-muted); }

/* AiBadge */
.ds-ai-badge { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 7px; background: rgba(234, 246, 114, 0.13); border: 1px solid rgba(234, 246, 114, 0.25); color: var(--ds-accent); font-size: 13px; }

/* MetricBlock */
.ds-metric { display: flex; flex-direction: column; gap: 10px; min-width: 280px; }
.ds-metric__top { display: flex; align-items: flex-start; gap: 12px; }
.ds-metric__value { font-size: var(--ds-fs-metric); font-weight: var(--ds-fw-metric); letter-spacing: -1.3px; line-height: 1.05; }
.ds-metric__unit { font-size: 0.4em; font-weight: 500; letter-spacing: 0; color: var(--ds-text-muted); margin-left: 6px; }
.ds-metric__chip { align-self: center; padding: 5px 11px; border-radius: var(--ds-radius-pill); background: rgba(234, 246, 114, 0.08); border: 1px solid rgba(234, 246, 114, 0.18); color: var(--ds-accent); font-size: var(--ds-fs-secondary); font-weight: 500; }
.ds-metric__label { font-size: var(--ds-fs-body); color: var(--ds-text-dim); }
.ds-metric__label strong { color: var(--ds-text); font-weight: 500; }
.ds-metric__delta { display: inline-flex; align-items: center; gap: 7px; font-size: 14px; font-weight: 500; }
.ds-metric__glyph { font-size: 10px; }
.ds-delta--down { color: var(--ds-positive); }
.ds-delta--up { color: var(--ds-alert); }
/* Unchanged vs previous period (no colour / no direction) */
.ds-delta--neutral { color: var(--ds-text-muted); }
/* No comparable previous period — muted, no arrow */
.ds-delta--none { color: var(--ds-text-muted); font-style: italic; }

/* Loading state — a small spinner replaces the number while a metric tile refetches
   (e.g. changing the header Period filter on the Site / Carbon pages). The value text
   goes transparent and a ring spins where it was; the chip/delta hide so stale figures
   don't linger. The spinner fades in over ~0.25s so a fast response shows only a faint
   hint rather than a hard flash. */
.ds-metric.is-loading .ds-metric__value {
  color: transparent;
  position: relative;
}
.ds-metric.is-loading .ds-metric__value::after {
  content: '';
  position: absolute;
  left: 2px;
  top: 50%;
  width: 22px;
  height: 22px;
  margin-top: -11px;
  border: 2px solid var(--ds-border-strong);
  border-top-color: var(--ds-text-dim);
  border-radius: 50%;
  animation: ds-metric-spin 0.7s linear infinite, ds-metric-spin-in 0.25s ease-out;
}
.ds-metric.is-loading .ds-metric__chip,
.ds-metric.is-loading .ds-metric__delta {
  visibility: hidden;
}
@keyframes ds-metric-spin {
  to { transform: rotate(360deg); }
}
@keyframes ds-metric-spin-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* StatusBar (proportional RAG segments — e.g. Sites by status).
   Display-only by default; interactive (clickable/filtering) styling is
   dormant under .ds-status-bar--interactive until the page-wide filtering
   pattern is decided. */
.ds-status-bar { display: flex; height: 56px; border-radius: var(--ds-radius-md); overflow: hidden; gap: 2px; }
.ds-status-bar__seg { display: flex; align-items: center; justify-content: center; gap: 10px; min-width: 0; padding: 0 12px; border: 0; font-family: var(--ds-font); color: var(--ds-bg); transition: filter 0.15s, opacity 0.15s; }
.ds-status-bar--interactive .ds-status-bar__seg { cursor: pointer; }
.ds-status-bar--interactive .ds-status-bar__seg:hover { filter: brightness(1.08); }
.ds-status-bar--interactive .ds-status-bar__seg:focus-visible { outline: 2px solid var(--ds-text); outline-offset: -3px; }
.ds-status-bar__num { font-size: 22px; font-weight: 700; letter-spacing: -0.5px; line-height: 1; }
.ds-status-bar__name { font-size: var(--ds-fs-meta); font-weight: 600; letter-spacing: 1.6px; text-transform: uppercase; opacity: 0.85; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ds-status-bar__seg--alert { background: var(--ds-alert); }
.ds-status-bar__seg--warning { background: var(--ds-warning); }
.ds-status-bar__seg--positive { background: var(--ds-positive); }
.ds-status-bar__seg--grey { background: var(--ds-tech); color: var(--ds-text); }
/* Selected/filter state (dormant) — page toggles .has-filter on the bar +
   .is-active on a seg once interactive filtering is enabled. */
.ds-status-bar--interactive.has-filter .ds-status-bar__seg:not(.is-active) { opacity: 0.4; }
.ds-status-bar--interactive .ds-status-bar__seg.is-active { outline: 2px solid var(--ds-text); outline-offset: -3px; }
/* Empty state — no live status data */
.ds-status-bar__placeholder { display: flex; align-items: center; height: 56px; padding: 0 16px; border-radius: var(--ds-radius-md); border: 1px dashed var(--ds-border-strong); color: var(--ds-text-muted); font-size: var(--ds-fs-secondary); }

/* InsightCard (translucent; lightbulb + impact header row, no accent bar) */
.ds-insight-card { position: relative; border: 1px solid var(--ds-border); border-radius: var(--ds-radius-lg); overflow: hidden; width: 100%; }
.ds-insight-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--ds-accent), transparent); opacity: 0.3; z-index: 1; }
.ds-insight-card__body { background: var(--ds-surface); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.ds-insight-card__top { display: flex; align-items: center; gap: 8px; min-height: 22px; }
.ds-insight-card__icon { color: var(--ds-accent); flex: none; line-height: 0; }
.ds-insight-card__kicker { font-size: 12px; font-weight: 600; letter-spacing: 0.2px; color: var(--ds-accent); }
.ds-insight-card__impact { margin-left: auto; font-size: 18px; font-weight: 700; letter-spacing: -0.4px; color: var(--ds-accent); }
.ds-insight-card__unit { font-size: 12px; color: var(--ds-text-muted); margin-left: 3px; }
.ds-insight-card__headline { font-size: 14px; font-weight: 600; line-height: 1.35; }
.ds-insight-card__text { font-size: 12.5px; color: var(--ds-text-dim); line-height: 1.45; }
.ds-insight-card__action { font-size: 13px; font-weight: 500; color: var(--ds-positive); }

/* EventCard (translucent, left status accent) */
.ds-event-card { border-radius: var(--ds-radius-md); overflow: hidden; width: 340px; }
.ds-event-card__body { background: var(--ds-surface); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border: 1px solid var(--ds-border); border-left: 3px solid var(--ds-alert); padding: 14px 16px 12px; display: flex; flex-direction: column; gap: 10px; }
.ds-event-card--alert .ds-event-card__body { border-left-color: var(--ds-alert); }
.ds-event-card--warning .ds-event-card__body { border-left-color: var(--ds-warning); }
.ds-event-card--positive .ds-event-card__body { border-left-color: var(--ds-positive); }
.ds-event-card__top { display: flex; align-items: center; justify-content: space-between; }
.ds-event-card__badge { font-size: 10px; font-weight: 600; letter-spacing: 1.3px; text-transform: uppercase; }
.ds-event-card--alert .ds-event-card__badge { color: var(--ds-alert-soft); }
.ds-event-card--warning .ds-event-card__badge { color: var(--ds-warning-soft); }
.ds-event-card__time { font-size: 11px; color: var(--ds-text-muted); }
.ds-event-card__headline { font-size: 13.5px; font-weight: 500; line-height: 1.35; }
.ds-event-card__bottom { display: flex; align-items: flex-end; justify-content: space-between; gap: 10px; }
.ds-event-card__stats { display: flex; gap: 12px; }
.ds-stat { display: flex; flex-direction: column; font-size: 11px; color: var(--ds-text-dim); }
.ds-stat strong { font-size: 12.5px; font-weight: 600; color: var(--ds-text); }
.ds-stat--cost strong { color: var(--ds-accent); }
.ds-label-pill { display: inline-flex; align-items: center; gap: 5px; padding: 4px 9px; border-radius: var(--ds-radius-pill); border: 1px solid var(--ds-border-strong); font-size: 10.5px; font-weight: 500; color: var(--ds-text-muted); white-space: nowrap; }
.ds-label-pill__dot { width: 6px; height: 6px; border-radius: 50%; }
.ds-label-pill--empty { border-style: dashed; }

/* Bars (shared by equipment & device rows) */
.ds-bar-track { height: 10px; background: rgba(255, 255, 255, 0.05); border-radius: 5px; overflow: hidden; }
.ds-bar-track--sm { height: 6px; border-radius: 3px; }
.ds-bar-fill { height: 100%; background: var(--ds-voltage); border-radius: inherit; }

/* SiteTableRow */
.ds-site-row { display: grid; grid-template-columns: 96px minmax(180px, 1fr) repeat(5, 130px); gap: 24px; align-items: center; padding: 18px 28px; background: var(--ds-surface); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); border: 1px solid var(--ds-border); border-radius: var(--ds-radius-md); }
.ds-site-row__name { font-size: 14px; font-weight: 500; }
.ds-site-row__addr { font-size: 12px; color: var(--ds-text-muted); margin-top: 3px; }
.ds-site-row__num { text-align: right; font-size: 13.5px; font-weight: 500; }

/* EquipmentGroupRow */
.ds-equip-row { display: grid; grid-template-columns: 220px 1fr 160px 22px; gap: 24px; align-items: center; padding: 18px 24px; background: var(--ds-surface); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); border: 1px solid var(--ds-border); border-radius: var(--ds-radius-md); }
.ds-equip-row__name { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 600; letter-spacing: -0.2px; }
.ds-equip-row__bar { display: flex; flex-direction: column; gap: 8px; }
.ds-equip-row__pct { font-size: 11px; font-weight: 500; color: var(--ds-text-dim); }
.ds-equip-row__vals { text-align: right; }
.ds-equip-row__cost { font-size: 19px; font-weight: 700; letter-spacing: -0.4px; }
.ds-equip-row__kwh { font-size: 12px; color: var(--ds-text-muted); }
.ds-equip-row__chev { color: var(--ds-text-muted); }

/* DeviceRow */
.ds-device-row { display: grid; grid-template-columns: 188px 1fr 160px 22px; gap: 24px; align-items: center; padding: 11px 12px; border-radius: var(--ds-radius-sm); background: rgba(0, 0, 0, 0.14); }
.ds-device-row__name { display: flex; align-items: center; gap: 9px; font-size: 13.5px; font-weight: 500; }
.ds-device-row__dot { width: 6px; height: 6px; border-radius: 50%; background: rgba(74, 82, 242, 0.65); }
.ds-device-row__vals { text-align: right; }
.ds-device-row__cost { font-size: 13.5px; font-weight: 600; }
.ds-device-row__kwh { font-size: 11px; color: var(--ds-text-muted); margin-left: 7px; }
.ds-device-row__chev { color: var(--ds-text-muted); text-align: center; }

/* =============================================================================
   Interaction states — CSS only. These define how interactive components look
   on hover / focus / active / selected / disabled. Actual behaviour (opening
   menus, filtering, selecting) lives in the product, not in this reference.
   Paired `.is-hover` / `.is-selected` / `.is-disabled` classes let the style
   guide show each state statically. `:focus-visible` styles apply once the app
   makes the element focusable.
   ============================================================================= */
.ds-filter-pill,
.ds-dropdown,
.ds-insight-card,
.ds-event-card,
.ds-site-row,
.ds-equip-row,
.ds-device-row {
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}

.ds-filter-pill:hover,
.ds-filter-pill.is-hover { background: rgba(255, 255, 255, 0.07); border-color: var(--ds-border-strong); color: var(--ds-text); }
.ds-filter-pill.is-selected { background: rgba(234, 246, 114, 0.08); border-color: rgba(234, 246, 114, 0.3); color: var(--ds-accent); }

.ds-dropdown:hover,
.ds-dropdown.is-hover { background: rgba(255, 255, 255, 0.07); }

.ds-insight-card:hover .ds-insight-card__body,
.ds-insight-card.is-hover .ds-insight-card__body,
.ds-event-card:hover .ds-event-card__body,
.ds-event-card.is-hover .ds-event-card__body { background: var(--ds-surface-hover); }
.ds-insight-card__action:hover { text-decoration: underline; }

.ds-site-row:hover,
.ds-site-row.is-hover,
.ds-equip-row:hover,
.ds-equip-row.is-hover,
.ds-device-row:hover,
.ds-device-row.is-hover { background: var(--ds-surface-hover); }

.ds-site-row.is-selected,
.ds-equip-row.is-selected,
.ds-device-row.is-selected { border-color: rgba(234, 246, 114, 0.4); box-shadow: inset 0 0 0 1px rgba(234, 246, 114, 0.25); }

.ds-filter-pill:active,
.ds-dropdown:active,
.ds-site-row:active,
.ds-equip-row:active,
.ds-device-row:active { transform: translateY(1px); }

.ds-filter-pill:focus-visible,
.ds-dropdown:focus-visible,
.ds-insight-card:focus-visible,
.ds-event-card:focus-visible,
.ds-site-row:focus-visible,
.ds-equip-row:focus-visible,
.ds-device-row:focus-visible { outline: 2px solid var(--ds-accent); outline-offset: 2px; }

.is-disabled,
[aria-disabled="true"] { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

/* Portal — Site Performance table + EPC band.
   Shared across portal pages (Overview, Carbon, Site Overview); lifted here from
   the page <style> blocks so the "Site Performance" table is a single reusable
   component. Token-driven; not ds-prefixed (legacy portal class names kept so
   existing markup/JS is unchanged). */
.perf-card { position: relative; overflow: hidden; background: var(--ds-surface-card); border: 1px solid var(--ds-border); border-radius: var(--ds-radius-xl); }
.perf-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--ds-accent), transparent); opacity: 0.3; z-index: 1; }
.perf-card__header { display: flex; align-items: center; justify-content: space-between; gap: var(--ds-space-4); padding: 20px 28px; border-bottom: 1px solid var(--ds-border); flex-wrap: wrap; }
.perf-card__title { font-size: var(--ds-fs-panel); font-weight: var(--ds-fw-panel); letter-spacing: -0.3px; color: var(--ds-text); }
.perf-card__sub { font-size: var(--ds-fs-secondary); color: var(--ds-text-muted); margin-top: 4px; }
.perf-card__controls { display: flex; align-items: center; gap: var(--ds-space-2); flex-wrap: wrap; }
.perf-filters { display: flex; align-items: center; gap: var(--ds-space-2); flex-wrap: wrap; }
.perf-card__divider { width: 1px; height: 22px; background: var(--ds-border-strong); margin: 0 4px; }
.perf-card__table-wrap { overflow-x: auto; }

.perf-table { width: 100%; border-collapse: collapse; min-width: 920px; }
.perf-th { text-align: left; padding: 12px 12px; font-size: var(--ds-fs-eyebrow); font-weight: 500; text-transform: uppercase; letter-spacing: 0.6px; color: var(--ds-text-muted); background: rgba(255, 255, 255, 0.015); border-bottom: 1px solid var(--ds-border); white-space: nowrap; cursor: pointer; user-select: none; }
.perf-th:first-child { padding-left: 20px; }
.perf-th:last-child { padding-right: 20px; }
.perf-th--num { text-align: right; }
.perf-th:hover { color: var(--ds-text-dim); }
.perf-th.sort-active { color: var(--ds-text); }
.perf-th.sort-active .sort-indicator { color: var(--ds-accent); }

.perf-table tbody tr { border-bottom: 1px solid var(--ds-border); transition: background 0.12s; cursor: pointer; }
.perf-table tbody tr:last-child { border-bottom: none; }
.perf-table tbody tr:hover { background: rgba(255, 255, 255, 0.025); }
.perf-table td { padding: 16px 12px; font-size: 14px; vertical-align: middle; color: var(--ds-text); }
.perf-table td:first-child { padding-left: 20px; }
.perf-table td:last-child { padding-right: 20px; }
.perf-table td.num { text-align: right; }

.perf-site__name { color: var(--ds-text); font-weight: 500; font-size: 13.5px; }
.perf-site__addr { color: var(--ds-text-muted); font-size: 12px; margin-top: 3px; }
.perf-site__reason { font-style: italic; }
.perf-cell__primary--empty { color: var(--ds-text-muted); font-weight: 400; }
/* Shown in place of rows when a status filter matches no sites for the month.
   JS sets an inline height equal to three normal rows; min-height is a fallback. */
.perf-empty-cell { text-align: center; vertical-align: middle; min-height: 198px; color: var(--ds-text-dim); font-size: 13px; }

.perf-cell { display: inline-flex; flex-direction: column; align-items: flex-end; gap: 3px; font-variant-numeric: tabular-nums; }
.perf-cell__primary { color: var(--ds-text); font-weight: 500; font-size: 13.5px; }
.perf-cell__sub { color: var(--ds-text-muted); font-size: 11px; }
.perf-change { display: inline-flex; align-items: center; gap: 3px; font-size: 11px; color: var(--ds-text-muted); font-variant-numeric: tabular-nums; }
.perf-change--up { color: var(--ds-alert); }
.perf-change--down { color: var(--ds-positive); }
.perf-change--flat { color: var(--ds-text-muted); }

.perf-card__footer { display: flex; justify-content: space-between; align-items: center; padding: 16px 28px; border-top: 1px solid var(--ds-border); font-size: 12px; color: var(--ds-text-muted); }

/* EPC asset rating band pill — used via templates/client/_epc_band_pill.html and
   rendered inline by the Overview / Carbon site tables. Colours follow GOV.UK. */
.epc-band { display: inline-block; border-radius: 4px; font-weight: 700; line-height: 1; text-align: center; letter-spacing: 0.5px; }
.epc-band-sm { padding: 2px 8px; font-size: 11px; min-width: 24px; }
.epc-band-lg { padding: 8px 16px; font-size: 22px; min-width: 44px; margin-top: 2px; }

/* TopBar — full-bleed, sharp-cornered portal header (logo · tenant · nav). Mirrors the
   prototype's nav.topbar. Used by the client portal base (templates/client/base_client.html)
   and showcased via the portal_topbar inclusion tag on /design-guide/. */
.ds-topbar { position: relative; z-index: 10; display: flex; align-items: center; padding: 20px 48px; background: rgba(8, 10, 22, 0.85); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); border-bottom: 1px solid var(--ds-border); border-radius: 0; }
.ds-topbar__brand { display: flex; align-items: center; gap: 20px; }
.ds-topbar__logo { height: 32px; width: auto; object-fit: contain; display: block; }
.ds-topbar__wordmark { font-size: 22px; font-weight: 700; letter-spacing: -0.5px; color: var(--ds-energy); }
.ds-topbar__divider { width: 1px; height: 22px; background: var(--ds-border-strong); }
.ds-topbar__tenant { font-size: 15px; font-weight: 500; color: var(--ds-text); letter-spacing: -0.1px; }
.ds-topbar__nav { margin-left: auto; display: flex; gap: 32px; align-items: center; }
.ds-topbar__link { font-size: 14px; color: var(--ds-text-dim); text-decoration: none; padding: 4px 0; position: relative; white-space: nowrap; transition: color 0.2s; cursor: pointer; }
.ds-topbar__link:hover { color: var(--ds-text); }
.ds-topbar__link--active { color: var(--ds-text); font-weight: 500; }
.ds-topbar__link--active::after { content: ''; position: absolute; bottom: -6px; left: 0; right: 0; height: 2px; background: var(--ds-energy); border-radius: 1px; box-shadow: 0 0 8px rgba(234, 246, 114, 0.35); }
@media (max-width: 900px) {
  .ds-topbar { padding: 18px 20px; flex-wrap: wrap; }
  .ds-topbar__nav { gap: 16px; margin-top: 12px; margin-left: 0; width: 100%; overflow-x: auto; }
}