:root {
  color-scheme: light;
  --navy: #12345b;
  --blue: #255f93;
  --ink: #172536;
  --muted: #637286;
  --line: #d9e2ec;
  --panel: #ffffff;
  --page: #eef3f7;
  --input: #f8fafc;
  --green: #16845b;
  --green-soft: #e8f7f0;
  --yellow: #c58900;
  --yellow-soft: #fff5d6;
  --red: #c3262f;
  --red-soft: #ffebed;
  --shadow: 0 6px 22px rgba(19, 52, 91, 0.08);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--page); }

body {
  margin: 0;
  min-width: 320px;
  background: var(--page);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.45;
}

button, input, select, textarea { font: inherit; }

button, input, select, textarea { min-height: 44px; }

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(37, 95, 147, 0.28);
  outline-offset: 2px;
}

.app-shell {
  width: min(100%, 760px);
  margin: 0 auto;
  padding: max(16px, env(safe-area-inset-top)) 14px max(28px, env(safe-area-inset-bottom));
}

.app-header,
.section-heading,
.stock-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.app-header { margin-bottom: 10px; }

.eyebrow {
  margin: 0 0 2px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

h1, h2, p { margin-top: 0; }

h1 {
  margin-bottom: 0;
  color: var(--navy);
  font-size: clamp(1.65rem, 7vw, 2.15rem);
  line-height: 1.1;
}

h2 {
  margin-bottom: 0;
  color: var(--navy);
  font-size: 1.08rem;
}

.section-heading p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.save-status {
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 700;
}

.toolbar {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.button {
  border: 1px solid #b9c8d7;
  border-radius: 11px;
  background: #fff;
  color: var(--navy);
  cursor: pointer;
  font-weight: 750;
  padding: 9px 12px;
}

.button.primary {
  border-color: var(--navy);
  background: var(--navy);
  color: #fff;
}

.panel,
.stock-card,
.time-panel {
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel, .time-panel { padding: 14px; }

.section-heading { margin-bottom: 12px; }
.section-heading.compact { margin-bottom: 9px; }

.date-field {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.date-field input {
  width: 145px;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--input);
  padding: 6px 8px;
  color: var(--ink);
}

.permission-group {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
  margin: 0 0 12px;
  padding: 0;
  border: 0;
}

.permission-group legend {
  grid-column: 1 / -1;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 750;
}

.permission input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.permission span {
  display: grid;
  min-height: 44px;
  place-items: center;
  border: 2px solid transparent;
  border-radius: 11px;
  background: var(--input);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.86rem;
  font-weight: 800;
}

.permission.green input:checked + span { border-color: var(--green); background: var(--green-soft); color: #07583c; }
.permission.yellow input:checked + span { border-color: var(--yellow); background: var(--yellow-soft); color: #795300; }
.permission.red input:checked + span { border-color: var(--red); background: var(--red-soft); color: #8e151d; }

.form-grid,
.stock-grid,
.discovery-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.span-2 { grid-column: 1 / -1; }

.field,
.compact-field {
  display: grid;
  gap: 5px;
}

.field > span,
.compact-field > span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 750;
}

.field input,
.field select,
.field textarea,
.compact-field select {
  width: 100%;
  border: 1px solid #cbd6e2;
  border-radius: 10px;
  background: var(--input);
  color: var(--ink);
  padding: 9px 10px;
}

.field textarea { resize: vertical; }

.red-rule {
  margin-bottom: 12px;
  border: 2px solid var(--red);
  border-radius: 14px;
  background: var(--red-soft);
  color: #991b23;
  font-size: 1.02rem;
  font-weight: 900;
  padding: 13px 14px;
  text-align: center;
}

.time-strip {
  display: grid;
  grid-auto-columns: minmax(116px, 1fr);
  grid-auto-flow: column;
  gap: 7px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.time-step {
  display: grid;
  gap: 3px;
  min-height: 64px;
  align-content: center;
  border-left: 4px solid #9eb6ce;
  border-radius: 9px;
  background: #f4f7fa;
  padding: 8px 9px;
}

.time-step.decision { border-left-color: var(--blue); background: #edf5fc; }
.time-step strong { color: var(--navy); font-size: 0.83rem; }
.time-step span { color: var(--muted); font-size: 0.8rem; }

.count-badge,
.ban-badge {
  flex: 0 0 auto;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 850;
  padding: 5px 9px;
}

.count-badge { background: #dceaf7; color: var(--navy); }
.ban-badge { background: var(--red-soft); color: var(--red); }

.stock-list { display: grid; gap: 10px; margin-bottom: 12px; }
.stock-card { overflow: hidden; margin-bottom: 0; }

.stock-card-header {
  border-bottom: 1px solid var(--line);
  background: var(--navy);
  color: #fff;
  padding: 9px 11px;
}

.stock-number { font-size: 1rem; }

.status-field {
  grid-template-columns: auto 118px;
  align-items: center;
}

.status-field > span { color: #dbe8f5; }
.status-field select { min-height: 36px; padding: 5px 8px; background: #fff; color: var(--navy); }

.stock-grid { padding: 11px; }

.zone {
  border-radius: 11px;
  padding: 8px;
}

.zone input,
.zone textarea { background: rgba(255,255,255,0.75); }
.zone-low { background: var(--green-soft); }
.zone-high { background: var(--yellow-soft); }
.zone-invalid { background: var(--red-soft); }
.zone-low > span { color: #0b6a48; }
.zone-high > span { color: #815800; }
.zone-invalid > span { color: #9a1c24; }

.check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.check-grid label,
.toggle-field {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 9px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--input);
  padding: 8px 10px;
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 700;
}

input[type="checkbox"] {
  width: 21px;
  min-height: 21px;
  height: 21px;
  margin: 0;
  accent-color: var(--blue);
}

.discovery-list { display: grid; gap: 8px; margin-top: 12px; }

.discovery-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 5px 10px;
  border: 1px solid #efc1c5;
  border-radius: 11px;
  background: #fff8f8;
  padding: 10px;
}

.discovery-item strong { color: var(--navy); }
.discovery-meta, .discovery-logic { color: var(--muted); font-size: 0.8rem; }
.discovery-logic { grid-column: 1 / -1; margin: 0; }
.restriction { color: var(--red); font-size: 0.78rem; font-weight: 900; }

.delete-button {
  align-self: start;
  min-height: 34px;
  border: 0;
  background: transparent;
  color: var(--red);
  cursor: pointer;
  font-weight: 800;
}

.empty-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  text-align: center;
}

.app-footer {
  color: var(--muted);
  font-size: 0.78rem;
  padding: 5px 2px;
  text-align: center;
}

.toast {
  position: fixed;
  right: 14px;
  bottom: max(18px, env(safe-area-inset-bottom));
  left: 14px;
  z-index: 20;
  max-width: 540px;
  margin: 0 auto;
  border-radius: 11px;
  background: rgba(18, 52, 91, 0.94);
  color: #fff;
  opacity: 0;
  padding: 10px 13px;
  pointer-events: none;
  text-align: center;
  transform: translateY(10px);
  transition: 180ms ease;
}

.toast.show { opacity: 1; transform: translateY(0); }

body.screenshot-mode { background: #fff; }
body.screenshot-mode .app-shell { width: min(100%, 700px); padding-top: 12px; }
body.screenshot-mode .hide-in-screenshot,
body.screenshot-mode #discoverySection { display: none !important; }
body.screenshot-mode .save-status { display: none; }
body.screenshot-mode .panel,
body.screenshot-mode .stock-card,
body.screenshot-mode .time-panel { box-shadow: none; }
body.screenshot-mode input,
body.screenshot-mode select,
body.screenshot-mode textarea {
  appearance: none;
  border-color: transparent;
  background: transparent;
  color: var(--ink);
  opacity: 1;
  pointer-events: none;
}
body.screenshot-mode .date-field span { display: none; }
body.screenshot-mode .permission span { cursor: default; }
body.screenshot-mode #appTitle { cursor: pointer; }

@media (min-width: 650px) {
  .toolbar { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .stock-list { grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: start; }
  .stock-grid { grid-template-columns: 1fr; }
  .stock-grid .span-2 { grid-column: 1; }
  .status-field { grid-template-columns: 1fr; gap: 2px; }
}

@media (max-width: 390px) {
  .app-shell { padding-right: 10px; padding-left: 10px; }
  .permission span { font-size: 0.76rem; }
  .check-grid { grid-template-columns: 1fr; }
  .date-field { align-items: flex-end; flex-direction: column; gap: 2px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}