.seikai-page {
  --seikai-border: color-mix(in srgb, var(--ink) 16%, transparent);
  --seikai-soft: color-mix(in srgb, var(--accent-2) 7%, var(--paper));
  max-width: 76rem;
}

.seikai-lead {
  max-width: 48rem;
  margin: 1rem 0 1.2rem;
  font-size: 1rem;
  line-height: 1.75;
}

.seikai-policy {
  margin: 0 0 1rem;
  padding: .85rem 1rem;
  border-left: 3px solid var(--accent-2);
  background: var(--seikai-soft);
}

.seikai-policy strong,
.seikai-policy p { display: block; margin: 0; }
.seikai-policy p { margin-top: .25rem; color: var(--muted); font-size: .82rem; line-height: 1.65; }

.seikai-panel {
  margin: 1rem 0;
  padding: 1.1rem;
  border: 1px solid var(--seikai-border);
  background: var(--paper);
  border-radius: 8px;
}

.seikai-panel > h2,
.seikai-panel > h3 { margin-top: 0; }
.seikai-panel-intro { margin-top: -.3rem; color: var(--muted); line-height: 1.6; }
.seikai-target-note { margin: -.4rem 0 .75rem; color: var(--muted); font-size: .78rem; line-height: 1.5; }

.seikai-gate {
  display: grid;
  gap: .45rem;
  padding: .9rem;
  border-left: 3px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, var(--paper));
}
.seikai-gate[hidden],
#ocrReaderPanel[hidden] { display: none !important; }

.seikai-gate p,
.seikai-gate small { margin: 0; }
.seikai-gate small { color: var(--muted); line-height: 1.5; }

.seikai-actions,
.seikai-mode-actions,
.seikai-manual-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem;
}

.seikai-actions { margin-top: .8rem; }
.seikai-actions button,
.seikai-actions label,
.seikai-mode-actions button,
.seikai-manual-row button { min-height: 44px; }

.seikai-file-input {
  display: grid;
  gap: .35rem;
  padding: .75rem;
  border: 1px dashed var(--seikai-border);
  background: color-mix(in srgb, var(--paper) 88%, var(--accent-2));
}

.seikai-file-input span { font-weight: 800; }
.seikai-file-input small { color: var(--muted); line-height: 1.5; }

.ocr-mode-note { display: grid; gap: .2rem; margin-top: .75rem; padding: .7rem .8rem; border-left: 3px solid var(--accent-2); background: color-mix(in srgb, var(--accent-2) 6%, var(--paper)); }
.ocr-mode-note strong { color: var(--accent-2); font-size: .78rem; }
.ocr-mode-note span { color: var(--muted); font-size: .7rem; line-height: 1.6; }

.seikai-status {
  flex: 1 1 16rem;
  min-height: 1.5rem;
  color: var(--muted);
  line-height: 1.5;
}

.seikai-observation-grid,
.seikai-result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
  margin-top: 1rem;
}

.seikai-observation-card,
.seikai-result-card {
  min-width: 0;
  padding: .85rem;
  border: 1px solid var(--seikai-border);
  background: color-mix(in srgb, var(--paper) 94%, var(--accent-2));
}

.seikai-observation-card.is-review {
  border-left: 3px solid #b77820;
  background: color-mix(in srgb, #f2c46d 10%, var(--paper));
}

.seikai-card-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .55rem;
}

.seikai-card-heading strong { overflow-wrap: anywhere; }
.seikai-card-heading small { color: var(--muted); white-space: nowrap; }
.seikai-observation-card img { display: block; width: 100%; max-height: 12rem; object-fit: contain; margin-bottom: .6rem; background: #fff; }
.seikai-observation-card label { display: grid; gap: .25rem; margin-top: .55rem; font-size: .78rem; font-weight: 800; }
.seikai-observation-card input[type="text"],
.seikai-observation-card input[type="number"] { width: 100%; min-height: 44px; padding: .55rem .65rem; border: 1px solid var(--seikai-border); background: var(--paper); color: var(--ink); font: inherit; }
.seikai-check-row { display: flex !important; grid-template-columns: none !important; align-items: center; gap: .45rem !important; }
.seikai-check-row input { width: 1.1rem; height: 1.1rem; }
.seikai-candidate-list { margin: .5rem 0 0; padding-left: 1.1rem; color: var(--muted); font-size: .76rem; line-height: 1.55; }
.seikai-observation-warning { margin: .55rem 0 0; padding: .5rem .6rem; border-left: 3px solid #b77820; background: color-mix(in srgb, #f2c46d 12%, var(--paper)); color: var(--ink); font-size: .78rem; line-height: 1.5; }
.seikai-power-list { display: grid; gap: .6rem; margin-top: .7rem; }
.seikai-power-row { display: grid; grid-template-columns: minmax(0, 1fr); align-items: end; padding: .5rem .6rem; border: 1px solid var(--seikai-border); background: color-mix(in srgb, var(--paper) 96%, var(--accent-2)); }
.seikai-power-row.is-review { border-left: 3px solid #b77820; background: color-mix(in srgb, #f2c46d 8%, var(--paper)); }
.seikai-power-row input[aria-invalid="true"] { border-color: #b77820; box-shadow: 0 0 0 2px color-mix(in srgb, #b77820 18%, transparent); }
.seikai-power-row-heading { display: flex; align-items: baseline; justify-content: space-between; gap: .5rem; }
.seikai-power-row-heading small { color: var(--muted); font-size: .7rem; }
.seikai-power-row label { margin-top: .3rem !important; }

.seikai-manual-row { margin-top: 1rem; }
.seikai-manual-row label { flex: 1 1 18rem; display: grid; gap: .25rem; font-size: .78rem; font-weight: 800; }
.seikai-manual-row input { min-height: 44px; padding: .55rem .65rem; border: 1px solid var(--seikai-border); background: var(--paper); color: var(--ink); font: inherit; }

.seikai-target-table-wrap { overflow-x: auto; margin-top: .85rem; }
.seikai-target-table { width: 100%; min-width: 36rem; border-collapse: collapse; }
.seikai-target-table th,
.seikai-target-table td { padding: .6rem .55rem; border-bottom: 1px solid var(--seikai-border); text-align: left; vertical-align: middle; }
.seikai-target-table th { font-size: .76rem; color: var(--muted); }
.seikai-target-table th:first-child { width: 28%; }
.seikai-target-table th:nth-child(2) { width: 54%; }
.seikai-target-stats { display: flex; flex-wrap: wrap; gap: .35rem .45rem; }
.seikai-target-stat { display: inline-flex; align-items: baseline; gap: .25rem; padding: .25rem .4rem; border: 1px solid var(--seikai-border); background: color-mix(in srgb, var(--paper) 94%, var(--accent-2)); white-space: nowrap; }
.seikai-target-stat span { color: var(--muted); font-size: .72rem; }
.seikai-target-stat strong { font-size: .85rem; }
.seikai-target-stats.is-empty { color: var(--muted); font-size: .78rem; }
.seikai-target-table select { min-width: 4rem; min-height: 44px; padding: .35rem; font: inherit; }
.seikai-mode-actions { margin-top: .9rem; }
.seikai-mode-actions button[aria-pressed="true"] { outline: 3px solid color-mix(in srgb, var(--accent-2) 30%, transparent); outline-offset: 1px; }
.seikai-mode-help { margin: .65rem 0 0; color: var(--muted); font-size: .78rem; line-height: 1.65; }

.seikai-result-card { display: grid; gap: .5rem; }
.seikai-result-card.is-possible { border-left: 3px solid var(--accent-2); }
.seikai-result-card.is-blocked { border-left: 3px solid var(--accent); }
.seikai-result-card p { margin: 0; line-height: 1.55; }
.seikai-result-card ul { margin: 0; padding-left: 1.15rem; color: var(--muted); line-height: 1.55; }
.seikai-result-group { grid-column: 1 / -1; }
.seikai-route-variants { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; }
.seikai-route-section { display: grid; gap: .45rem; min-width: 0; padding: .7rem; border: 1px solid var(--seikai-border); background: color-mix(in srgb, var(--paper) 96%, var(--accent-2)); }
.seikai-route-section.is-possible { border-left: 3px solid var(--accent-2); }
.seikai-route-section.is-blocked { border-left: 3px solid var(--accent); }
.seikai-route-heading { display: flex; align-items: baseline; justify-content: space-between; gap: .5rem; }
.seikai-route-heading strong { overflow-wrap: anywhere; }
.seikai-plan-list { margin: 0 !important; padding-left: 1.2rem !important; }
.seikai-plan-list li + li { margin-top: .35rem; }
.seikai-minimum-source-summary { display: block; color: var(--muted); font-size: .76rem; line-height: 1.45; }
.seikai-result-missing { color: #8a5200; font-size: .82rem; }
.seikai-route { display: block; overflow-wrap: anywhere; font-size: .82rem; line-height: 1.5; }
.seikai-route-node,
.seikai-route-ingredients,
.seikai-route-source { display: inline-flex; align-items: center; flex-wrap: wrap; gap: .28rem; vertical-align: middle; }
.seikai-route-node { max-width: 100%; }
.seikai-route-arrow,
.seikai-route-join { color: var(--muted); font-weight: 800; }
.seikai-route-source { max-width: 100%; padding: .2rem .3rem; border: 1px solid var(--seikai-border); background: color-mix(in srgb, var(--paper) 96%, var(--accent-2)); }
.seikai-route-thumb-button { display: inline-flex; flex: 0 0 auto; padding: 0; border: 1px solid var(--seikai-border); border-radius: 4px; background: #fff; cursor: zoom-in; }
.seikai-route-thumb-button:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent-2) 45%, transparent); outline-offset: 2px; }
.seikai-route-thumb { width: 2.7rem; height: 2.25rem; flex: 0 0 auto; border: 1px solid var(--seikai-border); border-radius: 4px; object-fit: cover; background: #fff; }
.seikai-route-source-text { display: grid; min-width: 0; }
.seikai-route-source-text strong,
.seikai-route-source-text small { overflow-wrap: anywhere; }
.seikai-route-source-text small { color: var(--muted); font-size: .7rem; }
.seikai-badge { display: inline-block; width: fit-content; padding: .2rem .45rem; border: 1px solid var(--seikai-border); color: var(--muted); font-size: .7rem; font-weight: 800; }
.seikai-badge.is-ok { color: var(--accent-2); border-color: color-mix(in srgb, var(--accent-2) 45%, transparent); }
.seikai-badge.is-warning { color: #8a5200; border-color: #b77820; }
.seikai-empty { margin: .8rem 0 0; color: var(--muted); }
.seikai-notes { margin-top: 1rem; }
.seikai-notes p { line-height: 1.65; }
.seikai-lightbox-open { overflow: hidden; }
.seikai-image-lightbox[hidden] { display: none !important; }
.seikai-image-lightbox { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; padding: 1rem; background: color-mix(in srgb, var(--ink) 74%, transparent); }
.seikai-image-lightbox-panel { position: relative; display: grid; gap: .65rem; width: min(94vw, 72rem); max-height: 94vh; padding: 1rem; border: 1px solid var(--seikai-border); border-radius: 8px; background: var(--paper); box-shadow: 0 1rem 3rem color-mix(in srgb, var(--ink) 35%, transparent); }
.seikai-image-lightbox-panel p { margin: 0; padding-right: 3rem; color: var(--muted); font-size: .82rem; }
.seikai-image-lightbox-image { display: block; width: 100%; max-height: 78vh; object-fit: contain; background: #fff; }
.seikai-image-lightbox-close { position: absolute; top: .65rem; right: .65rem; min-width: 44px; min-height: 44px; padding: .3rem .55rem; border: 1px solid var(--seikai-border); border-radius: 6px; background: var(--paper); color: var(--ink); font: inherit; font-weight: 800; cursor: pointer; }
.seikai-image-lightbox-close:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent-2) 45%, transparent); outline-offset: 2px; }

@media (max-width: 640px) {
  .seikai-page { width: auto; }
  .seikai-panel { padding: .85rem; }
  .seikai-observation-grid,
  .seikai-result-grid { grid-template-columns: 1fr; }
  .seikai-route-variants { grid-template-columns: 1fr; }
  .seikai-actions > *,
  .seikai-mode-actions > * { flex: 1 1 100%; }
  .seikai-actions button,
  .seikai-mode-actions button { width: 100%; }
  .seikai-status { flex-basis: 100%; }
  .seikai-observation-card img { max-height: 10rem; }
  .seikai-route-thumb { width: 2.35rem; height: 2rem; }
  .seikai-card-heading { align-items: flex-start; flex-wrap: wrap; }
  .seikai-card-heading small { white-space: normal; }
  .seikai-power-row-heading { align-items: flex-start; }
}