.home-page-header { min-height: 3.6rem; align-items: center; }
.home-hero { display: grid; gap: var(--space-1); }
.home-hero h1 { margin: 0; font-size: clamp(1.45rem, 2.5vw, 2.15rem); line-height: 1.1; letter-spacing: -.035em; }
.home-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(12, minmax(0, 1fr)); }
.overview-card { display: grid; min-height: 10.5rem; padding: var(--space-4); gap: var(--space-3); grid-column: span 3; align-content: space-between; }
.overview-card-heading { display: flex; align-items: center; gap: var(--space-2); color: var(--text-secondary); font-weight: 800; }
.utility-icon { display: grid; width: 2.9rem; height: 2.9rem; place-items: center; border-radius: 1rem; background: var(--glass-control); box-shadow: inset 0 1px 0 var(--glass-highlight); }
.overview-card .utility-icon { width: 2.25rem; height: 2.25rem; border-radius: var(--radius-sm); }
.overview-card.energy .utility-icon { color: var(--volt-energy-strong); }
.overview-card.water .utility-icon { color: var(--volt-water-strong); }
.overview-card.total .utility-icon, .overview-card.status .utility-icon { color: var(--volt-accent-strong); }
.overview-card .metric-value { font-size: clamp(1.6rem, 2.6vw, 2.35rem); }
.overview-card-meta { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); }
.overview-card-meta > span:first-child { color: var(--volt-accent-strong); font-weight: 850; }
.overview-card.status > strong { font-size: var(--font-size-lg); }
.overview-card.status p { display: -webkit-box; margin: 0; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.overview-card .text-button { justify-self: start; }
.home-chart-card { display: grid; min-height: 21rem; gap: var(--space-4); grid-column: span 8; }
.home-distribution-card { display: grid; min-height: 21rem; gap: var(--space-4); grid-column: span 4; align-content: start; }
.home-bar-chart { min-height: 13rem; }
.home-bar-chart .chart-bar { max-width: 2rem; flex-basis: 2rem; border-radius: .45rem .45rem .12rem .12rem; }
.distribution-chart { display: grid; width: 8.5rem; aspect-ratio: 1; margin: 0 auto; place-items: center; border-radius: 50%; background: conic-gradient(var(--volt-accent) 0 var(--energy-share, 50%), var(--volt-water) var(--energy-share, 50%) 100%); }
.distribution-chart::after { width: 62%; aspect-ratio: 1; border-radius: 50%; background: var(--glass-3); box-shadow: inset 0 1px 0 var(--glass-border); content: ""; }
.compact-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.compact-list li { padding: var(--space-2); }
.latest-card, .next-actions-card, .volt-tip-card { display: grid; min-height: 14rem; gap: var(--space-4); grid-column: span 4; align-content: start; }
.next-actions-card { align-content: start; }
.action-row { display: grid; width: 100%; padding: var(--space-3); align-items: center; gap: var(--space-3); border: 0; border-radius: var(--radius-md); background: color-mix(in srgb, var(--glass-control) 70%, transparent); color: var(--text-primary); font: inherit; text-align: left; cursor: pointer; grid-template-columns: auto 1fr auto; }
.action-row > span:nth-child(2) { display: grid; gap: var(--space-1); }
.action-row small { color: var(--text-secondary); }
.action-row:hover { background: var(--glass-control); }
.volt-tip-card { background: linear-gradient(135deg, color-mix(in srgb, var(--volt-accent) 17%, var(--glass-3)), var(--glass-3)); }
.mini-list { display: grid; margin: 0; padding: 0; gap: var(--space-2); list-style: none; }
.mini-list-item { display: flex; padding: var(--space-3); align-items: center; justify-content: space-between; gap: var(--space-3); border-radius: var(--radius-md); background: color-mix(in srgb, var(--glass-control) 70%, transparent); }
.mini-list-item small { display: block; color: var(--text-secondary); }

.analytics-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(12, minmax(0, 1fr)); }
.analytics-metric { display: grid; min-height: 7.25rem; padding: var(--space-3); gap: var(--space-1); grid-column: span 3; align-content: space-between; }
.chart-card { display: grid; min-height: 24rem; gap: var(--space-5); grid-column: span 8; }
.comparison-card { display: grid; gap: var(--space-4); grid-column: span 4; align-content: start; }
.bar-chart { display: flex; min-height: 14rem; padding-top: var(--space-4); align-items: end; justify-content: stretch; gap: clamp(.25rem, 1vw, .75rem); border-bottom: 1px solid var(--glass-border-strong); }
.chart-bar { position: relative; display: grid; min-width: 0; height: max(.35rem, var(--bar-height, 0%)); flex: 1; border-radius: var(--radius-pill) var(--radius-pill) .15rem .15rem; background: linear-gradient(180deg, var(--volt-accent), color-mix(in srgb, var(--volt-accent) 42%, transparent)); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .4); }
.chart-bar[data-type="water"] { background: linear-gradient(180deg, var(--volt-water), color-mix(in srgb, var(--volt-water) 42%, transparent)); }
.chart-bar span { position: absolute; right: 50%; bottom: -1.65rem; color: var(--text-tertiary); font-size: .62rem; transform: translateX(50%); white-space: nowrap; }
.line-chart-host { display: block; min-width: 0; min-height: 15rem; }
.line-chart { --line-color: var(--volt-accent); display: grid; width: 100%; min-width: 0; gap: var(--space-3); }
.line-chart[data-type="water"] { --line-color: var(--volt-water); }
.line-chart-svg { display: block; width: 100%; height: auto; min-height: 15rem; overflow: visible; }
.line-chart-grid-line { stroke: color-mix(in srgb, var(--glass-border-strong) 74%, transparent); stroke-width: 1; }
.line-chart-y-label, .line-chart-x-label { fill: var(--text-tertiary); font-size: .68rem; }
.line-chart-average { stroke: color-mix(in srgb, var(--text-secondary) 70%, transparent); stroke-width: 1.25; stroke-dasharray: 5 5; }
.line-chart-average-label, .line-chart-extreme-label { fill: var(--text-secondary); font-size: .68rem; font-weight: 800; }
.line-chart-area { fill: color-mix(in srgb, var(--line-color) 14%, transparent); }
.line-chart-path { fill: none; stroke: var(--line-color); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.line-chart-point { fill: var(--glass-3); stroke: var(--line-color); stroke-width: 2; }
.line-chart-point.peak { fill: var(--line-color); stroke-width: 2.5; }
.line-chart-point.min { stroke-width: 3; }
.line-chart-legend { display: grid; gap: var(--space-2); grid-template-columns: repeat(3, minmax(0, 1fr)); }
.line-chart-legend span { display: grid; padding: var(--space-2); gap: .15rem; border-radius: var(--radius-sm); background: color-mix(in srgb, var(--glass-control) 72%, transparent); color: var(--text-secondary); font-size: .72rem; }
.line-chart-legend strong { color: var(--text-primary); font-size: .68rem; text-transform: uppercase; letter-spacing: .04em; }
.line-chart-empty { display: grid; min-height: 14rem; place-items: center; color: var(--text-secondary); text-align: center; }
.comparison-list { display: grid; margin: 0; padding: 0; gap: var(--space-3); list-style: none; }
.comparison-list li { display: grid; padding: var(--space-3); gap: var(--space-1); border-radius: var(--radius-md); background: color-mix(in srgb, var(--glass-control) 72%, transparent); }
.comparison-list small { color: var(--text-secondary); }

.reading-summary { display: grid; gap: var(--space-4); grid-template-columns: repeat(4, minmax(0, 1fr)); }
.reading-summary .card { display: grid; min-height: 8rem; gap: var(--space-2); align-content: space-between; }
.reading-layout { display: grid; gap: var(--space-4); grid-template-columns: minmax(0, 1.55fr) minmax(17rem, .45fr); }
.reading-list { display: grid; margin: 0; padding: 0; gap: var(--space-2); list-style: none; }
.reading-item { padding: var(--space-4); border: 1px solid var(--glass-border); border-radius: var(--radius-md); background: color-mix(in srgb, var(--glass-control) 72%, transparent); }
.reading-item small { display: block; color: var(--text-secondary); }
.reading-guide { display: grid; gap: var(--space-4); align-content: start; }
.reading-guide ol { display: grid; margin: 0; padding-left: 1.35rem; gap: var(--space-3); color: var(--text-secondary); }

.alerts-list { display: grid; gap: var(--space-3); }
.alert-item { padding: var(--space-4); align-items: flex-start; border: 1px solid var(--glass-border); border-radius: var(--radius-md); background: color-mix(in srgb, var(--glass-control) 72%, transparent); }
.alert-copy { display: grid; gap: var(--space-1); }
.alert-copy p { margin: 0; color: var(--text-secondary); }
.alert-icon { display: grid; width: 2.5rem; height: 2.5rem; flex: 0 0 auto; place-items: center; border-radius: var(--radius-sm); background: var(--volt-accent-soft); color: var(--volt-accent-strong); }

.reports-empty-page { min-height: 60vh; }

.user-directory-stats { display: grid; gap: var(--space-4); grid-template-columns: repeat(3, minmax(0, 1fr)); }
.user-directory-stats .card { display: grid; min-height: 7.5rem; gap: var(--space-2); align-content: space-between; }
.user-directory { display: grid; gap: var(--space-4); align-content: start; }
.user-directory-list { display: grid; gap: var(--space-2); }
.user-account-item { display: grid; padding: var(--space-4); align-items: center; gap: var(--space-4); border: 1px solid var(--glass-border); border-radius: var(--radius-md); background: color-mix(in srgb, var(--glass-control) 72%, transparent); grid-template-columns: minmax(13rem, 1.4fr) minmax(17rem, 1fr) auto; }
.user-account-identity, .user-account-metadata span { display: grid; gap: var(--space-1); }
.user-account-identity small, .user-account-metadata small { color: var(--text-secondary); }
.user-account-identity small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-account-metadata { display: grid; gap: var(--space-4); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.user-account-metadata strong { font-size: var(--font-size-sm); }

.settings-layout { display: grid; gap: var(--space-4); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.settings-group { display: grid; gap: var(--space-4); align-content: start; }
.settings-group.wide { grid-column: 1 / -1; }
.cycle-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cycle-grid fieldset { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.theme-choices { display: grid; gap: var(--space-3); grid-template-columns: repeat(3, minmax(0, 1fr)); }
.theme-choice { display: grid; min-height: 7rem; padding: var(--space-3); place-items: center; gap: var(--space-2); border: 1px solid var(--glass-border-strong); border-radius: var(--radius-md); background: var(--glass-control); color: var(--text-secondary); font-weight: 800; }
.theme-choice[aria-pressed="true"] { border-color: var(--volt-accent); color: var(--volt-accent-strong); box-shadow: 0 0 0 2px color-mix(in srgb, var(--volt-accent) 18%, transparent); }
.theme-swatch { width: 100%; height: 2.7rem; border-radius: var(--radius-sm); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .55); }
.theme-swatch.system { background: linear-gradient(90deg, #f7fbf9 50%, #0a1c16 50%); }
.theme-swatch.light { background: linear-gradient(145deg, #ffffff, #dcece7); }
.theme-swatch.dark { background: linear-gradient(145deg, #17372d, #04100c); }
.appearance-settings { gap: var(--space-5); }
.accent-settings { display: grid; padding-top: var(--space-4); gap: var(--space-3); border-top: 1px solid var(--glass-border); }
.accent-settings h3 { margin: 0 0 var(--space-1); }
.accent-choices { display: grid; gap: var(--space-2); grid-template-columns: repeat(3, minmax(0, 1fr)); }
.accent-choice { display: flex; min-height: 3.2rem; padding: var(--space-2); align-items: center; gap: var(--space-2); border: 1px solid var(--glass-border-strong); border-radius: var(--radius-sm); background: var(--glass-control); color: var(--text-secondary); font-size: var(--font-size-xs); font-weight: 800; }
.accent-choice[aria-pressed="true"] { border-color: var(--volt-accent); color: var(--text-primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--volt-accent) 20%, transparent); }
.accent-swatch { width: 1.45rem; height: 1.45rem; flex: 0 0 auto; border: 2px solid rgba(255, 255, 255, .6); border-radius: 50%; box-shadow: 0 2px 8px rgba(0, 0, 0, .14); }
.accent-swatch.emerald { background: #00a878; }
.accent-swatch.azure { background: #2f8df4; }
.accent-swatch.violet { background: #8057df; }
.accent-swatch.amber { background: #dc9212; }
.accent-swatch.coral { background: #e66558; }
.accent-swatch.teal { background: #009e9a; }

.help-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(3, minmax(0, 1fr)); }
.help-topic { display: grid; min-height: 11rem; gap: var(--space-3); align-content: space-between; }
.faq-list { display: grid; gap: var(--space-2); }
.faq-list details { padding: var(--space-4); border: 1px solid var(--glass-border); border-radius: var(--radius-md); background: color-mix(in srgb, var(--glass-control) 70%, transparent); }
.faq-list summary { cursor: pointer; font-weight: 800; }
.faq-list p { margin-bottom: 0; color: var(--text-secondary); }

.reading-flow { display: grid; gap: var(--space-4); }
.reading-stepper { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-2); }
.reading-step { display: grid; gap: var(--space-1); color: var(--text-tertiary); font-size: .68rem; text-align: center; }
.reading-step::before { height: .3rem; border-radius: var(--radius-pill); background: color-mix(in srgb, var(--text-tertiary) 16%, transparent); content: ""; }
.reading-step[data-active="true"], .reading-step[data-complete="true"] { color: var(--volt-accent-strong); }
.reading-step[data-active="true"]::before, .reading-step[data-complete="true"]::before { background: var(--volt-accent); }
.reading-type-grid { display: grid; gap: var(--space-3); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.reading-type-option { display: grid; min-height: 8rem; padding: var(--space-4); place-items: center; gap: var(--space-2); border: 1px solid var(--glass-border-strong); border-radius: var(--radius-md); background: var(--glass-control); color: var(--text-primary); font-weight: 850; }
.reading-type-option[aria-pressed="true"] { border-color: var(--volt-accent); box-shadow: 0 0 0 2px color-mix(in srgb, var(--volt-accent) 20%, transparent); }
.capture-zone { display: grid; min-height: 12rem; padding: var(--space-5); place-items: center; align-content: center; gap: var(--space-3); border: 1px dashed var(--glass-border-strong); border-radius: var(--radius-lg); background: color-mix(in srgb, var(--glass-1) 72%, transparent); text-align: center; }
.meter-preview { width: 100%; max-height: 17rem; object-fit: contain; border-radius: var(--radius-md); background: #020806; }
.file-input { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }

@media (max-width: 1199px) {
  .analytics-metric { grid-column: span 6; }
  .chart-card { grid-column: span 7; }
  .comparison-card { grid-column: span 5; }
  .overview-card { grid-column: span 6; }
  .home-chart-card { grid-column: span 7; }
  .home-distribution-card { grid-column: span 5; }
  .latest-card, .next-actions-card { grid-column: span 6; }
  .volt-tip-card { grid-column: 1 / -1; }
}

@media (max-width: 767px) {
  .home-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-3); }
  .analytics-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-2); }
  .overview-card { min-width: 0; min-height: 9.4rem; padding: var(--space-3); grid-column: auto; }
  .overview-card .metric-value { font-size: clamp(1.35rem, 7vw, 1.8rem); }
  .overview-card .status-pill { display: none; }
  .analytics-metric { min-width: 0; min-height: 6.6rem; padding: var(--space-3); gap: var(--space-1); grid-column: auto; }
  .analytics-metric .metric-value { font-size: clamp(1.3rem, 6vw, 1.8rem); }
  .analytics-metric .metric-caption, .analytics-metric .metric-delta { font-size: .7rem; }
  .home-chart-card, .home-distribution-card, .latest-card, .next-actions-card, .volt-tip-card, .chart-card, .comparison-card { min-width: 0; grid-column: 1 / -1; }
  .home-chart-card { min-height: 18rem; }
  .home-bar-chart .chart-bar { max-width: 1.4rem; flex-basis: 1.4rem; }
  .line-chart-svg { min-height: 12.5rem; }
  .line-chart-legend { grid-template-columns: 1fr; gap: var(--space-1); }
  .line-chart-legend span { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-2); }
  .line-chart-y-label, .line-chart-x-label { font-size: .62rem; }
  .reading-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .reading-layout, .settings-layout, .help-grid { grid-template-columns: 1fr; }
  .settings-group.wide { grid-column: auto; }
  .cycle-grid { grid-template-columns: 1fr; }
  .theme-choices { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .theme-choice { min-height: 5.6rem; padding: var(--space-2); font-size: var(--font-size-xs); }
  .accent-choices { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .user-directory-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-2); }
  .user-directory-stats .card { min-height: 6.7rem; padding: var(--space-3); }
  .user-directory-stats .metric-value { font-size: 1.7rem; }
  .user-account-item { align-items: start; grid-template-columns: 1fr auto; }
  .user-account-metadata { grid-column: 1 / -1; grid-row: 2; }
}

@media (max-width: 430px) {
  .reading-summary { grid-template-columns: 1fr 1fr; gap: var(--space-2); }
  .reading-summary .card { min-height: 7rem; padding: var(--space-3); }
  .reading-summary .metric-value { font-size: 1.45rem; }
  .utility-card-details { gap: var(--space-2); }
  .reading-type-grid { grid-template-columns: 1fr; }
}