/* Battery Health Checker — tool UI (uses design-system tokens only) */

/* Full-width centered hero, matching tool content width */
.bv-intro {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-8) var(--space-7);
  text-align: center;
}
.bv-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-glow);
  pointer-events: none;
}
.bv-intro .container { position: relative; }
.bv-intro .section-head {
  max-width: none;
  width: 100%;
  margin: 0 auto var(--space-5);
  text-align: center;
}
.bv-intro .section-head h1 {
  margin-top: var(--space-7);
  margin-bottom: var(--space-4);
}
.bv-intro .section-head p.lead,
.bv-intro .lead {
  font-size: var(--fs-lg);
  margin: 0 auto;
  max-width: 46rem;
  color: var(--text-secondary);
}

.bv-section { padding-block: 0 var(--space-9); }
.bv-trust {
  padding-block: var(--space-2) var(--space-4);
}
.bv-trust .trust-split {
  padding-block: var(--space-3) var(--space-4);
}
.bv-trust .trust-stat:nth-child(2) { --trust-tint: #19d132; }
.bv-trust .trust-stat:nth-child(2) .stat-value { color: #19d132; }
.bv-note { font-size: var(--fs-sm); color: var(--tool-muted); margin-top: var(--space-4); }
.bv-msg {
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--border);
  border-left: 4px solid var(--s0);
  background: var(--bg-secondary);
  border-radius: var(--radius-input);
  font-size: var(--fs-sm);
}
.bv-msg strong { color: var(--tool-text); }

.bv-health-cta {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}
.bv-health-btn {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 0;
  cursor: pointer;
  padding: 16px 22px;
  border-radius: var(--radius-card);
  background: var(--tool-primary);
  color: var(--tool-primary-text);
  font: 800 var(--fs-lg) var(--tool-font);
  letter-spacing: -0.01em;
  box-shadow: 0 8px 24px color-mix(in srgb, var(--tool-primary) 28%, transparent);
  transition: transform var(--duration-fast), opacity var(--duration-fast);
}
.bv-health-btn:hover { opacity: 0.94; transform: translateY(-1px); }
.bv-health-btn:focus-visible { outline: 2px solid var(--tool-primary); outline-offset: 3px; }
.bv-health-lead {
  margin: var(--space-3) 0 var(--space-5);
  font-size: var(--fs-sm);
  color: var(--tool-muted);
  text-align: center;
  max-width: none;
  width: 100%;
}
.bv-health-panel { margin-top: var(--space-2); }
.bv-health-panel[hidden] { display: none; }

.bv-log-section {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}
.bv-logbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin: 0 0 var(--space-3);
  flex-wrap: wrap;
}
.bv-logbar h3 { font-size: var(--fs-base); }
.bv-btns { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.bv-btn { padding: 0.5rem 0.95rem; }
.bv-log {
  max-height: 260px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  background: var(--bg-card);
}
.bv-log table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.bv-log th,
.bv-log td {
  text-align: left;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.bv-log th {
  position: sticky;
  top: 0;
  background: var(--bg-secondary);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--tool-muted);
}
.bv-log tr:last-child td { border-bottom: 0; }
.bv-log td.e { white-space: normal; }

/* Report / analyze */
.bv-os { display: inline-flex; gap: 4px; margin-bottom: var(--space-3); flex-wrap: wrap; }
.bv-os button {
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--tool-muted);
  font: 700 var(--fs-xs) var(--tool-font);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
}
.bv-os button[aria-pressed="true"] {
  border-color: var(--tool-primary);
  color: var(--tool-text);
  background: var(--bg-secondary);
}
.bv-how { font-size: var(--fs-sm); color: var(--tool-muted); margin-bottom: var(--space-3); }
.bv-code {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  justify-content: space-between;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  padding: 10px 14px;
  margin-bottom: var(--space-3);
}
.bv-code code {
  font-family: 'Courier New', monospace;
  font-size: var(--fs-sm);
  overflow-wrap: anywhere;
  color: var(--tool-text);
}
.bv-steps {
  margin: 0 0 var(--space-4);
  padding-left: 1.25rem;
  font-size: var(--fs-sm);
  color: var(--tool-muted);
  line-height: 1.55;
}
.bv-steps li { margin-bottom: 6px; }
.bv-steps li:last-child { margin-bottom: 0; }
.bv-steps strong,
.bv-steps code { color: var(--tool-text); }
.bv-steps code {
  font-family: 'Courier New', monospace;
  font-size: 0.92em;
  background: var(--bg-secondary);
  padding: 1px 6px;
  border-radius: 6px;
}
.bv-steps--simple {
  list-style: none;
  counter-reset: bvstep;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.bv-steps--simple li {
  counter-increment: bvstep;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: 0;
  padding: var(--space-4);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-input);
  color: var(--tool-text);
  font-size: var(--fs-sm);
}
.bv-steps--simple li::before {
  content: counter(bvstep);
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-primary);
  color: var(--on-accent);
  font-size: var(--fs-xs);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.bv-step-copy span { flex: 1 1 auto; min-width: 8rem; }
.bv-step-copy .bv-btn { flex-shrink: 0; }
.bv-code[hidden],
.bv-how[hidden] { display: none !important; }
.bv-analyze-row { margin-top: var(--space-4); align-items: center; }
.bv-analyze-main {
  min-width: 200px;
  padding: 0.75rem 1.4rem;
  font-size: var(--fs-base);
  font-weight: 800;
}
.bv-results { margin-top: var(--space-6); }
.bv-health {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-5);
  align-items: center;
  margin-bottom: var(--space-5);
}
.bv-ring {
  --p: 0;
  --c: var(--s1);
  width: 148px;
  height: 148px;
  border-radius: 50%;
  background: conic-gradient(var(--c) calc(var(--p) * 1%), var(--bg-secondary) 0);
  display: grid;
  place-items: center;
}
.bv-ring div {
  width: 112px;
  height: 112px;
  border-radius: 50%;
  background: var(--bg-card);
  display: grid;
  place-items: center;
  text-align: center;
}
.bv-ring b { font-size: 2rem; line-height: 1; color: var(--tool-text); }
.bv-ring small {
  display: block;
  font-size: var(--fs-xs);
  color: var(--tool-muted);
  margin-top: 2px;
}
.bv-verdict h3 { font-size: var(--fs-xl); margin-bottom: var(--space-2); }
.bv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: var(--space-3);
}
.bv-details {
  margin-top: var(--space-5);
  border: 1px solid var(--border);
  background: var(--bg-card);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.bv-details h3 {
  font-size: var(--fs-base);
  margin: 0;
  padding: var(--space-4);
  border-bottom: 1px solid var(--border);
}
.bv-details-table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.bv-details-table th,
.bv-details-table td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.bv-details-table th {
  width: 42%;
  font-weight: 700;
  color: var(--tool-muted);
  background: var(--bg-secondary);
}
.bv-details-table tr:last-child th,
.bv-details-table tr:last-child td { border-bottom: 0; }
.bv-details-table td.muted { color: var(--tool-muted); }
.bv-details-note {
  margin: 0;
  padding: 10px 14px;
  font-size: var(--fs-xs);
  color: var(--tool-muted);
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}
.bv-chart {
  margin-top: var(--space-5);
  border: 1px solid var(--border);
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: var(--space-4);
}
.bv-chart h3 { font-size: var(--fs-base); margin-bottom: var(--space-3); }
.bv-chart svg { width: 100%; height: auto; display: block; }
.bv-err { margin-top: var(--space-4); }

.prose code {
  font-family: 'Courier New', monospace;
  font-size: 0.92em;
  background: var(--bg-secondary);
  padding: 1px 6px;
  border-radius: 6px;
  overflow-wrap: anywhere;
}

/* Live gauge — hero battery + metric strip */
.bv-live {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-panel);
  background:
    radial-gradient(ellipse 80% 60% at 20% 40%, color-mix(in srgb, #19d132 10%, transparent), transparent 70%),
    var(--bg-card);
}
.bv-gauge {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto auto;
  column-gap: var(--space-7);
  row-gap: var(--space-2);
  align-items: center;
  justify-items: stretch;
  max-width: 920px;
  margin-inline: auto;
  width: 100%;
  border: 0;
  background: transparent;
  padding: 0;
}
.bv-bat {
  grid-column: 1;
  grid-row: 1 / 3;
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 520px;
  --bv-good: #19d132;
  --bv-mid: #f5a300;
  --bv-low: #ff2d2d;
}
.bv-bat-body {
  position: relative;
  flex: 1;
  height: 112px;
  border: 4px solid var(--tool-text);
  border-radius: 20px;
  padding: 6px;
  overflow: hidden;
  background: var(--bg-secondary);
}
.bv-bat-cap {
  width: 12px;
  height: 42px;
  background: var(--tool-text);
  border-radius: 0 7px 7px 0;
  flex-shrink: 0;
}
.bv-fill {
  height: 100%;
  width: 0;
  border-radius: 12px;
  background: var(--bv-color, var(--bv-good));
  transition: width 0.6s var(--ease-out), background 0.3s;
}
.bv-bat.charging .bv-fill {
  background-image: linear-gradient(
    110deg,
    rgba(255, 255, 255, 0) 28%,
    rgba(255, 255, 255, 0.55) 50%,
    rgba(255, 255, 255, 0) 72%
  );
  background-size: 200% 100%;
  background-color: var(--bv-color, var(--bv-good));
  box-shadow: inset 0 0 18px rgba(25, 209, 50, 0.45);
  animation: bv-shine 1.8s linear infinite;
}
@keyframes bv-shine {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}
.bv-bolt {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.bv-bat.charging .bv-bolt { display: flex; }
.bv-pct {
  grid-column: 2;
  grid-row: 1;
  align-self: end;
  font-size: clamp(2.75rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin: 0;
  color: var(--tool-text);
  text-align: left;
  min-width: 5.5ch;
}
.bv-state {
  grid-column: 2;
  grid-row: 2;
  align-self: start;
  margin: 0;
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--tool-muted);
  text-align: left;
}

.bv-tiles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  max-width: 920px;
  margin-inline: auto;
  width: 100%;
  border-top: 1px solid var(--border);
  padding-top: var(--space-5);
}
.bv-tile {
  background: transparent;
  border: 0;
  border-right: 1px solid var(--border);
  border-radius: 0;
  padding: var(--space-2) var(--space-4);
  text-align: center;
}
.bv-tile:last-child { border-right: 0; }
.bv-tile .l {
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--tool-muted);
}
.bv-tile .v {
  font-size: var(--fs-xl);
  font-weight: 800;
  margin-top: 6px;
  line-height: 1.15;
  color: var(--bv-tc, var(--tool-text));
  overflow-wrap: anywhere;
}
.bv-tile:nth-child(1) { --bv-tc: #19d132; }
.bv-tile:nth-child(2) { --bv-tc: var(--s2); }
.bv-tile:nth-child(3) { --bv-tc: var(--s4); }
.bv-tile:nth-child(4) { --bv-tc: #f5a300; }
.bv-tile .s { font-size: var(--fs-xs); color: var(--tool-muted); margin-top: 4px; }

@media (max-width: 820px) {
  .bv-gauge {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    row-gap: var(--space-3);
  }
  .bv-bat {
    grid-column: 1;
    grid-row: 1;
    max-width: 100%;
  }
  .bv-pct {
    grid-column: 1;
    grid-row: 2;
    text-align: center;
    align-self: center;
  }
  .bv-state {
    grid-column: 1;
    grid-row: 3;
    text-align: center;
    align-self: center;
  }
  .bv-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4) 0; }
  .bv-tile:nth-child(2) { border-right: 0; }
  .bv-tile:nth-child(1),
  .bv-tile:nth-child(2) {
    border-bottom: 1px solid var(--border);
    padding-bottom: var(--space-4);
  }
  .bv-tile:nth-child(3),
  .bv-tile:nth-child(4) { padding-top: var(--space-4); }
}
@media (max-width: 520px) {
  .bv-live { padding: var(--space-5) var(--space-4); }
  .bv-tiles { grid-template-columns: 1fr; gap: 0; }
  .bv-tile {
    border-right: 0;
    border-bottom: 1px solid var(--border);
    padding-block: var(--space-4);
  }
  .bv-tile:last-child { border-bottom: 0; }
  .bv-tile:nth-child(1),
  .bv-tile:nth-child(2) { border-bottom: 1px solid var(--border); padding-bottom: var(--space-4); }
  .bv-health {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }
  .bv-details-table th { width: 48%; }
}