:root {
  color-scheme: light;
  --ink: #111;
  --paper: #fff;
  --line: #e4e4e4;
  --muted: #767676;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

header.site {
  padding: 2.5rem 1.5rem 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--line);
}

header.site h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

header.site p {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2.5rem;
}

.card {
  cursor: pointer;
  border: none;
  background: none;
  text-align: left;
  padding: 0;
  font: inherit;
}

.card .thumb {
  width: 100%;
  aspect-ratio: 4 / 5;
  background: #f5f5f5;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card .thumb.empty {
  color: #bbb;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.card h2 {
  margin: 0.9rem 0 0.2rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.card .price {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.card .status {
  display: inline-block;
  margin-top: 0.35rem;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 4rem 0;
  font-size: 0.9rem;
}

/* modal */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.97);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  overflow-y: auto;
  padding: 2rem 1.25rem 4rem;
  z-index: 50;
}

.overlay[hidden] {
  display: none;
}

.modal {
  max-width: 640px;
  width: 100%;
}

.modal .close {
  display: block;
  margin-left: auto;
  background: none;
  border: none;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--muted);
  padding: 0.5rem;
}

.modal img {
  width: 100%;
  display: block;
  margin-bottom: 0.75rem;
  background: #f5f5f5;
}

.modal h2 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 1rem 0 0.25rem;
}

.modal .desc {
  color: #333;
  line-height: 1.6;
  font-size: 0.92rem;
  white-space: pre-wrap;
}

.bid-box {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}

.bid-box .current {
  font-size: 1.4rem;
  font-weight: 600;
}

.bid-box .current small {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

form.bid-form {
  display: grid;
  gap: 0.6rem;
  margin-top: 1.25rem;
  max-width: 360px;
}

input,
textarea {
  font: inherit;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--ink);
}

button.primary {
  font: inherit;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: var(--paper);
  border: none;
  cursor: pointer;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

button.primary:hover {
  opacity: 0.85;
}

button.primary:disabled {
  opacity: 0.4;
  cursor: default;
}

.msg {
  font-size: 0.82rem;
  min-height: 1.1em;
}

.msg.error {
  color: #b3261e;
}

.msg.ok {
  color: #1a7a3d;
}

.bid-history {
  margin-top: 1.25rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.bid-history li {
  display: flex;
  justify-content: space-between;
  padding: 0.25rem 0;
  border-bottom: 1px solid var(--line);
}

footer.site {
  text-align: center;
  color: var(--muted);
  font-size: 0.75rem;
  padding: 2rem 1rem 3rem;
}