/* Scoped planner styles; shared navigation and scene retain the master shell. */
.battery-page { padding: 28px 0 64px; }
.battery-page h1, .battery-page h2 { color: var(--color-text-bright); font-family: var(--font-heading); line-height: 1.2; }
.battery-page h1 { font-size: clamp(2.1rem, 4.3vw, 3.5rem); letter-spacing: -.035em; margin: 16px 0 24px; max-width: 900px; }
.battery-page h2 { font-size: clamp(1.4rem, 2.2vw, 1.9rem); margin: 0 0 18px; }
.battery-page p { margin-bottom: 18px; }
.battery-page a { text-decoration: underline; text-underline-offset: 3px; }
.battery-breadcrumbs { display: flex; gap: 10px; flex-wrap: wrap; font-size: .85rem; }
.battery-hero { padding: 40px 0; max-width: 950px; }
.battery-lead { color: var(--color-text-bright); font-size: 1.2rem; }
.battery-page .section-tag { color: var(--color-text-secondary); background: var(--surface-2); border-color: var(--color-border-light); }
.battery-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-bottom: 28px; }
.battery-card { min-width: 0; padding: 26px; margin: 0; background: var(--surface-1); border: 1px solid var(--color-border-light); border-radius: var(--border-radius-md); }
.battery-card legend, .battery-modes legend { padding: 0 8px; font-weight: 600; font-size: 1.1rem; color: var(--color-text-bright); }
.battery-card p { font-size: .94rem; }
.battery-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.battery-field { margin-bottom: 12px; }
.battery-field label { display: block; font-size: .9rem; color: var(--color-text-bright); margin-bottom: 8px; }
.battery-field input[type="number"] { width: 100%; min-height: 46px; padding: 10px; border: 1px solid var(--color-border-light); border-radius: var(--border-radius-sm); color: var(--color-text-bright); background: var(--color-dark); font: inherit; }
.battery-field input[type="range"] { width: 100%; min-height: 44px; accent-color: var(--color-accent); }
.battery-page input:focus-visible, .battery-page summary:focus-visible, .battery-page a:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 4px; }
.battery-field small { display: block; margin-top: 8px; font-size: .8rem; line-height: 1.5; color: var(--color-text-secondary); }
.battery-modes { display: flex; flex-wrap: wrap; gap: 18px; padding: 20px; border: 1px solid var(--color-border-light); border-radius: var(--border-radius-md); margin: 0 0 32px; }
.battery-modes label { display: block; flex: 1 1 260px; padding: 14px; cursor: pointer; color: var(--color-text-bright); background: var(--surface-2); border-radius: var(--border-radius-sm); }
.battery-modes input { width: 20px; height: 20px; vertical-align: middle; margin-right: 8px; accent-color: var(--color-accent); }
.battery-modes label:has(input:checked) { outline: 2px solid var(--color-accent); }
.battery-modes span { display: block; margin: 6px 0 0 32px; font-size: .85rem; color: var(--color-text-secondary); }
.battery-notice { padding: 22px; border: 2px solid var(--color-accent); background: var(--surface-2); color: var(--color-text-bright); border-radius: var(--border-radius-md); }
.battery-page [hidden] { display: none !important; }
.battery-results { padding: 22px 0 40px; }
.battery-summary { color: var(--color-text-bright); }
.battery-result.battery-selected { border: 2px solid var(--color-accent); }
.battery-page .battery-big { font-size: clamp(2rem, 3.4vw, 3rem); font-weight: 700; color: var(--color-accent); margin-bottom: 4px; }
.battery-result dl { margin: 20px 0 0; }
.battery-result dt { font-size: .87rem; color: var(--color-text-secondary); padding-top: 14px; border-top: 1px solid var(--color-border-light); }
.battery-result dd { color: var(--color-text-bright); font-weight: 600; margin: 4px 0 14px; }
.battery-table-wrap { overflow-x: auto; }
.battery-page table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
.battery-page caption { text-align: left; font-size: .9rem; margin-bottom: 16px; }
.battery-page th, .battery-page td { padding: 12px; text-align: left; border-bottom: 1px solid var(--color-border-light); }
.battery-page thead { color: var(--color-text-bright); background: var(--surface-2); }
.battery-current-day { background: var(--surface-2); font-weight: 700; }
.battery-method { border-top: 1px solid var(--color-border-light); padding-top: 32px; }
.battery-method details { margin: 24px 0; border: 1px solid var(--color-border-light); padding: 20px; border-radius: var(--border-radius-md); }
.battery-method summary { cursor: pointer; color: var(--color-text-bright); font-weight: 600; }
.battery-method details p:first-of-type { margin-top: 20px; }
.battery-small { margin-top: 16px; font-size: .85rem; }
.battery-site .hamburger span { background: var(--color-text-bright); }
@media(max-width: 800px) { .battery-grid { grid-template-columns: 1fr; } }
@media(max-width: 540px) {
 .battery-fields { grid-template-columns: 1fr; gap: 8px; }
 .battery-card { padding: 20px; }
 .battery-site .nav-container { padding: 0 16px; gap: 8px; }
 .battery-site .nav-logo .logo-word { font-size: 1rem; letter-spacing: .2em; }
 .battery-site .theme-toggle { margin: 0 0 0 auto; flex-shrink: 0; }
 .battery-site .hamburger { flex-shrink: 0; }
 .battery-page th, .battery-page td { padding: 10px 7px; font-size: .85rem; }
}
/* Input explanations work with pointer hover, keyboard focus and a touch toggle. */
.battery-help { display: inline-block; position: relative; margin: 0 0 7px; }
.battery-help button { width: 28px; height: 28px; border: 1px solid var(--color-border-light); border-radius: 50%; background: var(--surface-2); color: var(--color-text-bright); cursor: help; font: inherit; font-weight: 700; }
.battery-help button:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 3px; }
.battery-help [role="tooltip"] { display: none; position: absolute; left: 0; top: calc(100% + 7px); width: min(300px, 72vw); padding: 14px; z-index: 5; color: var(--color-text-bright); background: var(--surface-2); border: 1px solid var(--color-accent); border-radius: var(--border-radius-sm); font-size: .85rem; line-height: 1.5; box-shadow: 0 8px 22px rgba(0,0,0,.25); }
.battery-help:hover [role="tooltip"], .battery-help:focus-within [role="tooltip"], .battery-help.is-open [role="tooltip"] { display: block; }
.battery-wide { grid-column: 1 / -1; }
.battery-generator-inputs { margin-bottom: 28px; }
.battery-generator-toggle { color: var(--color-text-bright); display: block; padding: 12px 0 20px; }
.battery-generator-toggle input { width: 20px; height: 20px; vertical-align: middle; margin-right: 10px; }
#battery-generator-results { margin: 0 0 32px; }

.battery-help [role="tooltip"] { background: var(--color-dark); }

.battery-field select { width:100%; min-height:46px; padding:10px; font:inherit; color:var(--color-text-bright); background:var(--color-dark); border:1px solid var(--color-border-light); border-radius:var(--border-radius-sm); }

.battery-modes p { flex-basis:100%; margin:0; }
.battery-modes a { flex:1 1 240px; display:block; padding:14px; background:var(--surface-2); border:1px solid var(--color-border-light); border-radius:var(--border-radius-sm); font-weight:600; }
#battery-shift-result, #battery-outage-result { scroll-margin-top:110px; }