:root {
  --bg: #f4f1ec;
  --bg-2: #ebe6de;
  --ink: #1c1a17;
  --muted: #7a746b;
  --line: rgba(28, 26, 23, 0.1);
  --card: #fffcf7;
  --accent: #2f4a3a;
  --accent-2: #c45c26;
  --warn: #8a4b1f;
  --ok: #2f5d3a;
  --radius: 18px;
  --shadow: 0 18px 50px rgba(28, 26, 23, 0.07);
  --font: "Manrope", "Helvetica Neue", sans-serif;
  --serif: "Instrument Serif", Georgia, serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, #fff8ef 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #e7efe8 0%, transparent 45%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  line-height: 1.5;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}

.top, .shell, .foot { position: relative; z-index: 1; }

.top {
  max-width: 1120px;
  margin: 0 auto;
  padding: 42px 24px 12px;
  display: grid;
  gap: 18px;
}

.brand {
  display: flex;
  gap: 16px;
  align-items: center;
}

.mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background:
    linear-gradient(145deg, var(--accent) 0 48%, transparent 48% 52%, var(--accent-2) 52%);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.25);
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 11px;
  color: var(--muted);
  font-weight: 600;
}

h1 {
  margin: 2px 0 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  letter-spacing: -0.03em;
  line-height: 0.95;
}

.lede {
  max-width: 46ch;
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 12px 24px 64px;
  display: grid;
  grid-template-columns: 1.05fr 1.2fr;
  gap: 18px;
}

.panel {
  background: color-mix(in srgb, var(--card) 92%, white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  animation: rise 700ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.person-panel { grid-column: 1; }
.goods-panel { grid-column: 2; grid-row: 1 / span 2; }
.action-panel { grid-column: 1; }
.result-panel { grid-column: 1 / -1; }

.panel:nth-child(2) { animation-delay: 80ms; }
.panel:nth-child(3) { animation-delay: 140ms; }
.panel:nth-child(4) { animation-delay: 200ms; }

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel-head h2 {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.panel-head p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.panel-head.row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin-bottom: 16px;
}
.panel-head:not(.row) { margin-bottom: 16px; }

.tabs {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  background: rgba(28,26,23,0.05);
}
.tab {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  font-size: 0.84rem;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
}
.tab.active {
  background: var(--card);
  color: var(--ink);
  box-shadow: 0 1px 0 rgba(28,26,23,0.06);
}

.drop {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 320px;
  border: 1.5px dashed color-mix(in srgb, var(--ink) 22%, transparent);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.55), rgba(255,255,255,0.15));
  overflow: hidden;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}
.drop.compact { min-height: 240px; }
.drop:hover, .drop:focus-within, .drop.dragover {
  border-color: var(--accent);
  background: color-mix(in srgb, #e7efe8 55%, white);
}
.drop.dragover { transform: scale(0.995); }
.drop img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-height: inherit;
}
.drop-empty {
  display: grid;
  gap: 6px;
  text-align: center;
  padding: 24px;
}
.drop-title { font-weight: 700; letter-spacing: -0.02em; }
.drop-sub { color: var(--muted); font-size: 0.9rem; }
.chip {
  position: absolute;
  top: 12px;
  right: 12px;
  border: 0;
  background: rgba(255,252,247,0.92);
  color: var(--ink);
  border-radius: 999px;
  padding: 8px 12px;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(28,26,23,0.08);
}
.hint {
  min-height: 1.2em;
  margin: 10px 0 0;
  color: var(--warn);
  font-size: 0.86rem;
}

.catalog {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  max-height: 520px;
  overflow: auto;
  padding-right: 4px;
}
.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  cursor: pointer;
  text-align: left;
  padding: 0;
  font: inherit;
  color: inherit;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(28,26,23,0.08); }
.card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 35%, transparent);
}
.card img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  display: block;
  background: #ddd;
}
.card .cap {
  padding: 10px 12px 12px;
  font-size: 0.86rem;
  font-weight: 600;
}

.actions {
  display: grid;
  gap: 10px;
}
.btn {
  appearance: none;
  border: 0;
  border-radius: 12px;
  font: inherit;
  font-weight: 700;
  padding: 14px 18px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 120ms ease, background 160ms ease, opacity 160ms ease;
}
.btn:active { transform: scale(0.985); }
.btn.primary {
  background: var(--ink);
  color: #fff7ef;
}
.btn.primary:hover { background: #2c2925; }
.btn.primary:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  transform: none;
}
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 10px 14px;
  font-size: 0.9rem;
}
.btn.ghost:hover { background: rgba(28,26,23,0.04); }

.status {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  min-height: 1.4em;
}
.status.busy { color: var(--accent); }
.status.err { color: #8f2f2a; }
.status.ok { color: var(--ok); }

.rules {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.rules li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.88rem;
}
.rules li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--accent-2);
}

.compare {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: #111;
  user-select: none;
  touch-action: none;
  aspect-ratio: 3 / 4;
  max-height: 78vh;
}
.compare img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #161411;
  pointer-events: none;
}
.compare-before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 50%;
  overflow: hidden;
  border-right: 1px solid rgba(255,255,255,0.55);
}
.compare-before img {
  width: var(--compare-w, 100%);
  height: 100%;
  max-width: none;
  object-fit: contain;
}
.compare-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 36px;
  transform: translateX(-50%);
  cursor: ew-resize;
  display: grid;
  place-items: center;
}
.compare-handle span {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #fff7ef;
  box-shadow: 0 8px 22px rgba(0,0,0,0.28);
  position: relative;
}
.compare-handle span::before,
.compare-handle span::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 0;
  height: 0;
  border-style: solid;
  transform: translateY(-50%);
}
.compare-handle span::before {
  left: 9px;
  border-width: 5px 6px 5px 0;
  border-color: transparent #1c1a17 transparent transparent;
}
.compare-handle span::after {
  right: 9px;
  border-width: 5px 0 5px 6px;
  border-color: transparent transparent transparent #1c1a17;
}
.compare-labels {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}
.compare-labels span {
  background: rgba(20,18,15,0.55);
  color: #fff7ef;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 10px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
}

.result-tools { display: flex; gap: 8px; }

.foot {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px 36px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.82rem;
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #b0a89c;
}
.dot.on { background: var(--ok); }
.dot.off { background: #a33; }

.loader {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(800px 400px at 50% 40%, rgba(255, 248, 239, 0.55), transparent 70%),
    rgba(28, 26, 23, 0.42);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: fadeIn 220ms ease both;
}
.loader[hidden] { display: none; }
.loader-card {
  width: min(360px, 100%);
  background: color-mix(in srgb, var(--card) 94%, white);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 28px 80px rgba(28, 26, 23, 0.22);
  padding: 32px 28px 26px;
  text-align: center;
  display: grid;
  gap: 10px;
  justify-items: center;
  animation: rise 420ms cubic-bezier(0.16, 1, 0.3, 1) both;
}
.loader-ring {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    conic-gradient(from 0deg, var(--accent) 0 35%, transparent 35% 100%);
  mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
  animation: spin 0.9s linear infinite;
  margin-bottom: 6px;
}
.loader-ring span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent-2) 18%, transparent);
}
.loader-title {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.65rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.loader-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  min-height: 1.4em;
}
.loader-bar {
  width: 100%;
  height: 4px;
  border-radius: 999px;
  background: rgba(28, 26, 23, 0.08);
  overflow: hidden;
  margin-top: 6px;
}
.loader-bar i {
  display: block;
  height: 100%;
  width: 28%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  animation: barSlide 1.6s ease-in-out infinite;
}
.loader-time {
  margin: 2px 0 0;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.btn.loading {
  pointer-events: none;
  gap: 10px;
}
.btn.loading::before {
  content: "";
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid rgba(255, 247, 239, 0.25);
  border-top-color: #fff7ef;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes barSlide {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(420%); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .person-panel, .goods-panel, .action-panel, .result-panel { grid-column: 1; }
  .goods-panel { grid-row: auto; }
  .drop, .drop.compact { min-height: 240px; }
  .panel-head.row { flex-direction: column; align-items: start; }
}