:root {
  --bg: #1b1f27;
  --surface: #232833;
  --surface-2: #2b3140;
  --surface-3: #323a4a;
  --border: #3a4150;
  --border-soft: #2e3542;
  --accent: #f0a202;
  --accent-dim: #8a5f14;
  --accent-2: #5b8ac4;
  --text: #ece9e2;
  --text-dim: #9aa3b2;
  --text-faint: #6b7280;
  --good: #4cae7d;
  --mid: #e0a83e;
  --bad: #e2574c;
  --radius: 14px;
  --radius-sm: 9px;
  font-size: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: contain;
}

body {
  padding-bottom: env(safe-area-inset-bottom);
}

.mono {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* ---------- App bar ---------- */
.appbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: linear-gradient(180deg, var(--bg) 70%, rgba(27,31,39,0.85) 100%);
  padding: calc(env(safe-area-inset-top) + 14px) 16px 0 16px;
  backdrop-filter: blur(6px);
}

.appbar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand .plate {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 700;
  font-size: 1.28rem;
  letter-spacing: 0.02em;
  color: var(--text);
}

.brand .sub {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.tick-rule {
  height: 6px;
  margin: 12px 0 10px 0;
  background-image: repeating-linear-gradient(
    90deg,
    var(--accent) 0px,
    var(--accent) 2px,
    transparent 2px,
    transparent 10px
  );
  background-position: left center;
  background-size: 10px 2px;
  background-repeat: repeat-x;
  background-position-y: 50%;
  opacity: 0.85;
  position: relative;
}
.tick-rule::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 1px;
  background: var(--border);
  transform: translateY(-50%);
  z-index: -1;
}

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
  cursor: pointer;
}
.icon-btn:active { background: var(--surface-2); }

/* ---------- Search ---------- */
.search-wrap {
  padding: 2px 16px 10px 16px;
}
.search-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.95rem;
  padding: 10px 12px;
  outline: none;
}
.search-input::placeholder { color: var(--text-faint); }
.search-input:focus { border-color: var(--accent-dim); }

/* ---------- Category chips ---------- */
.cat-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 16px 12px 16px;
  scrollbar-width: none;
}
.cat-scroll::-webkit-scrollbar { display: none; }

.cat-chip {
  flex: none;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  cursor: pointer;
  white-space: nowrap;
}
.cat-chip.active {
  background: var(--accent);
  color: #24160a;
  border-color: var(--accent);
  font-weight: 600;
}
.cat-chip .count {
  opacity: 0.65;
  margin-left: 4px;
}

/* ---------- List ---------- */
.list-wrap {
  padding: 4px 16px 90px 16px;
}

.list-header-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 4px 8px 4px;
  color: var(--text-faint);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.list-header-row .lh-name { flex: 1; }
.list-header-row .lh-price { width: 108px; text-align: right; }

.item-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 12px 12px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.item-row:active {
  background: var(--surface-2);
  border-color: var(--border);
}

.item-name {
  flex: 1;
  min-width: 0;
}
.item-name .sku {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.28;
  display: block;
  overflow-wrap: break-word;
}
.item-name .cat-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.63rem;
  color: var(--accent-2);
  letter-spacing: 0.06em;
  margin-top: 2px;
  display: block;
}

.item-prices {
  flex: none;
  width: 108px;
  text-align: right;
}
.item-prices .p-excl {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--accent);
  display: block;
  line-height: 1.35;
}
.item-prices .p-incl {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  color: var(--text-dim);
  display: block;
}

.empty-state {
  text-align: center;
  color: var(--text-faint);
  padding: 60px 20px;
  font-size: 0.9rem;
}
.empty-state .big {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.05rem;
  color: var(--text-dim);
  margin-bottom: 6px;
  display: block;
}

/* ---------- FAB upload ---------- */
.fab {
  position: fixed;
  right: 18px;
  bottom: calc(18px + env(safe-area-inset-bottom));
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #24160a;
  border: none;
  border-radius: 999px;
  padding: 13px 18px 13px 15px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 0.88rem;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
  cursor: pointer;
}
.fab:active { transform: scale(0.97); }

/* ---------- Detail sheet ---------- */
.sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10,12,16,0.6);
  z-index: 40;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.sheet-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.sheet {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 41;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-radius: 20px 20px 0 0;
  max-height: 86vh;
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform 0.24s cubic-bezier(.2,.9,.3,1);
  padding-bottom: calc(24px + env(safe-area-inset-bottom));
}
.sheet.open { transform: translateY(0); }

.sheet-grip {
  width: 40px;
  height: 4px;
  background: var(--border);
  border-radius: 4px;
  margin: 10px auto 6px auto;
}

.sheet-head {
  padding: 6px 20px 14px 20px;
  border-bottom: 1px solid var(--border-soft);
}
.sheet-head .cat-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--accent-2);
  text-transform: uppercase;
}
.sheet-head h2 {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.2rem;
  margin: 4px 0 0 0;
  line-height: 1.3;
}

.gauge-block {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-soft);
}
.gauge-num {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
}
.gauge-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  text-transform: uppercase;
}

.field-list {
  padding: 6px 20px 10px 20px;
}
.field-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px dashed var(--border-soft);
  gap: 12px;
}
.field-row:last-child { border-bottom: none; }
.field-row .flabel {
  font-size: 0.82rem;
  color: var(--text-dim);
  flex: none;
}
.field-row .fvalue {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  text-align: right;
}
.field-row.highlight .fvalue { color: var(--accent); }

.sheet-close-area {
  padding: 4px 20px 0 20px;
}
.close-btn {
  width: 100%;
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 0.88rem;
  cursor: pointer;
}

/* ---------- Upload modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(10,12,16,0.65);
  z-index: 50;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-backdrop.open { display: flex; }

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 380px;
  padding: 22px 20px;
}
.modal h3 {
  font-family: "Space Grotesk", sans-serif;
  margin: 0 0 6px 0;
  font-size: 1.1rem;
}
.modal p {
  color: var(--text-dim);
  font-size: 0.85rem;
  line-height: 1.5;
  margin: 0 0 16px 0;
}
.modal input[type=file] {
  width: 100%;
  color: var(--text-dim);
  font-size: 0.82rem;
  margin-bottom: 12px;
}
.modal input[type=password] {
  width: 100%;
  box-sizing: border-box;
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.88rem;
  font-family: "Inter", sans-serif;
  margin-bottom: 16px;
}
.modal .btn-row {
  display: flex;
  gap: 10px;
}
.modal button {
  flex: 1;
  padding: 11px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 0.88rem;
  cursor: pointer;
  font-family: "Inter", sans-serif;
  font-weight: 600;
}
.modal .btn-cancel {
  background: transparent;
  color: var(--text-dim);
}
.modal .btn-confirm {
  background: var(--accent);
  color: #24160a;
  border-color: var(--accent);
}
.modal .status-msg {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  margin-top: 12px;
  min-height: 18px;
}
.modal .status-msg.ok { color: var(--good); }
.modal .status-msg.err { color: var(--bad); }

.modal .btn-download {
  width: 100%;
  margin-top: 4px;
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent-dim);
  background: transparent;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.86rem;
  cursor: pointer;
}
.modal .btn-download:active { background: rgba(240,162,2,0.1); }

.toast {
  position: fixed;
  left: 50%;
  bottom: 90px;
  transform: translateX(-50%);
  background: var(--surface-3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 0.82rem;
  z-index: 60;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-6px);
}

@media (min-width: 720px) {
  .list-wrap { max-width: 640px; margin: 0 auto; }
  .appbar-row, .search-wrap, .cat-scroll { max-width: 640px; margin: 0 auto; width: 100%; }
  .sheet { left: 50%; transform: translate(-50%, 100%); max-width: 480px; border-radius: 20px; bottom: 24px; max-height: 80vh; }
  .sheet.open { transform: translate(-50%, 0); }
}