:root {
  color-scheme: light;
  --bg: #f5efe3;
  --grid: rgba(24, 33, 47, 0.035);
  --panel: #fffaf1;
  --panel-strong: #ffffff;
  --line: #dfd4c1;
  --text: #18212f;
  --muted: #687386;
  --accent: #0f766e;
  --accent-strong: #0d9488;
  --accent-soft: #d8f3ed;
  --warn: #9a5b00;
  --warn-soft: #fff1cf;
  --danger: #b42335;
  --danger-soft: #ffe2e6;
  --shadow: 0 24px 70px rgba(72, 55, 38, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    linear-gradient(180deg, var(--grid) 1px, transparent 1px),
    radial-gradient(circle at 14% 0%, rgba(255, 255, 255, 0.9), transparent 28rem),
    var(--bg);
  background-size: 28px 28px, 28px 28px, auto, auto;
  color: var(--text);
  font-family: Inter, Manrope, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  min-height: 42px;
  border: 1px solid rgba(15, 118, 110, 0.28);
  border-radius: 999px;
  padding: 0.68rem 1rem;
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
  font-weight: 900;
}

button:hover {
  background: var(--accent-strong);
}

input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.72rem 0.85rem;
  background: rgba(255, 255, 255, 0.78);
  color: var(--text);
  outline: none;
}

button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(15, 118, 110, 0.3);
  outline-offset: 2px;
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
}

.hidden {
  display: none !important;
}

.login-view {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.login-card {
  width: min(440px, 100%);
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 250, 241, 0.92);
  box-shadow: var(--shadow);
}

.login-card h1,
.topbar h1,
.card h2 {
  margin: 0;
}

.login-card p {
  color: var(--muted);
  line-height: 1.5;
}

.login-card label {
  display: block;
  margin: 1.4rem 0 0.45rem;
  color: var(--muted);
}

.login-card button {
  width: 100%;
  margin-top: 1rem;
}

.shell {
  width: min(1780px, calc(100vw - 40px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.topbar,
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.topbar {
  margin-bottom: 1.2rem;
}

.topbar h1 {
  font-size: clamp(2rem, 4.5vw, 3.6rem);
  letter-spacing: -0.07em;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.35rem;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.summary-grid {
  display: grid;
  grid-template-columns: minmax(420px, 1.6fr) repeat(3, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 250, 241, 0.92);
  box-shadow: 0 14px 42px rgba(72, 55, 38, 0.1);
  padding: 1.2rem;
}

.upload-form,
.album-form {
  display: grid;
  gap: 0.7rem;
  margin-top: 1rem;
}

.upload-form {
  grid-template-columns: 1fr auto;
}

.album-form {
  grid-template-columns: 0.8fr 1.2fr 0.9fr auto;
}

.stat-card span,
.stat-card small,
.status-text,
.error-text {
  color: var(--muted);
}

.stat-card strong {
  display: block;
  margin-top: 0.8rem;
  font-size: clamp(1.7rem, 2.5vw, 2.4rem);
  letter-spacing: -0.05em;
}

.stat-card small {
  display: block;
  margin-top: 0.45rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.layout {
  display: grid;
  grid-template-columns: minmax(420px, 0.38fr) minmax(720px, 1fr);
  gap: 1rem;
  align-items: start;
}

.side-panel {
  display: grid;
  gap: 1rem;
}

.ghost-btn {
  border: 1px solid var(--line);
  background: var(--panel-strong);
  color: var(--text);
}

.ghost-btn:hover {
  background: var(--accent-soft);
}

.mapping-list,
.unknown-list {
  display: grid;
  gap: 0.55rem;
  margin-top: 1rem;
}

.mapping-row,
.unknown-row {
  display: grid;
  grid-template-columns: minmax(118px, 0.8fr) minmax(0, 1.2fr) minmax(150px, 0.9fr) auto;
  gap: 0.55rem;
  align-items: center;
  padding: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.54);
}

.unknown-row {
  grid-template-columns: minmax(118px, 0.8fr) minmax(0, 0.8fr) minmax(0, 1.2fr) minmax(150px, 0.9fr) auto;
}

.upc-code {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  overflow-wrap: anywhere;
}

.muted {
  color: var(--muted);
}

.danger-btn {
  border-color: rgba(180, 35, 53, 0.2);
  background: var(--danger-soft);
  color: var(--danger);
}

.danger-btn:hover {
  background: rgba(255, 139, 139, 0.2);
}

.tree-card {
  min-height: 620px;
}

.tree-root {
  margin-top: 1rem;
}

.empty-tree {
  display: grid;
  min-height: 420px;
  place-items: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 18px;
}

.node {
  margin: 0.45rem 0;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.58);
  overflow: hidden;
}

.node summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.85rem 1rem;
  cursor: pointer;
  list-style: none;
}

.node summary::-webkit-details-marker {
  display: none;
}

.node summary::before {
  content: "+";
  display: inline-grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 7px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 900;
}

.node[open] > summary::before {
  content: "-";
}

.node-title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 800;
}

.node-money {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 800;
}

.node-meta {
  color: var(--muted);
  font-size: 0.84rem;
}

.children {
  padding: 0 0.75rem 0.75rem 2rem;
}

.album.needs-artist > summary {
  background: var(--warn-soft);
}

.album.needs-artist > summary .node-title {
  color: var(--warn);
}

.store-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  margin: 0.45rem 0;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
}

.error-text {
  color: var(--danger);
  min-height: 1.2em;
}

@media (max-width: 1180px) {
  .summary-grid,
  .layout {
    grid-template-columns: 1fr;
  }

  .upload-form,
  .album-form,
  .mapping-row,
  .unknown-row {
    grid-template-columns: 1fr;
  }
}