:root {
  --bg: #0a0d13;
  --bg-soft: #111725;
  --card: #171f31;
  --card-2: #202b40;
  --text: #eef4ff;
  --muted: #97a6c0;
  --line: #2b3650;
  --accent: #2eb2ff;
  --accent-2: #1f8fd9;
  --danger: #ff5e7d;
  --ok: #46d39a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 500px at 90% -10%, rgba(46, 178, 255, 0.18), transparent 60%),
    radial-gradient(800px 440px at -10% 100%, rgba(70, 211, 154, 0.12), transparent 60%),
    var(--bg);
  color: var(--text);
  font: 400 15px/1.4 "Segoe UI", Tahoma, sans-serif;
}

.app {
  width: min(980px, calc(100vw - 32px));
  margin: 22px auto;
}

.card {
  background: linear-gradient(180deg, var(--card), var(--card-2));
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 1.6rem;
}

h2 {
  font-size: 1.2rem;
}

h3 {
  font-size: 1rem;
  margin-bottom: 10px;
}

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

.stack {
  display: grid;
  gap: 10px;
}

.panel {
  display: grid;
  gap: 12px;
}

.hidden {
  display: none;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}

label {
  color: #dbe6fd;
  font-size: 0.9rem;
}

input,
button {
  font: inherit;
}

input {
  width: 100%;
  color: var(--text);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
}

input:focus {
  outline: 2px solid rgba(46, 178, 255, 0.35);
  border-color: var(--accent);
}

.btn {
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px 14px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  color: #03131f;
  font-weight: 700;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
  font-weight: 600;
}

.field-row {
  display: grid;
  gap: 6px;
}

.key-dropdown {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #121a2a;
  padding: 8px 10px;
}

.key-dropdown summary {
  cursor: pointer;
  color: #dbe6fd;
  font-weight: 600;
  list-style: none;
}

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

.key-dropdown summary::after {
  content: " +";
  color: var(--muted);
}

.key-dropdown[open] summary::after {
  content: " -";
}

.key-dropdown-content {
  margin-top: 10px;
  display: grid;
  gap: 6px;
}

.inline {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.key-inline {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 8px;
}

.message {
  min-height: 20px;
  color: var(--muted);
  font-size: 0.92rem;
}

.message.error {
  color: var(--danger);
}

.message.ok {
  color: var(--ok);
}

.results {
  display: grid;
  gap: 8px;
  max-height: 420px;
  overflow: auto;
}

.result-item {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 10px;
  align-items: center;
  background: #131b2b;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
  cursor: pointer;
}

.result-item img {
  width: 62px;
  height: 88px;
  border-radius: 8px;
  object-fit: cover;
  background: #0c1019;
}

.result-item.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(46, 178, 255, 0.32);
}

.title {
  font-weight: 700;
}

.meta {
  color: var(--muted);
  font-size: 0.86rem;
}

.selected-item {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px;
  border-radius: 10px;
  border: 1px dashed var(--line);
}

.selected-item img {
  width: 54px;
  height: 76px;
  border-radius: 8px;
  object-fit: cover;
}

.poster-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.poster-count {
  font-size: 0.76rem;
  color: #b6d8f6;
  border: 1px solid #355172;
  background: #122035;
  border-radius: 999px;
  padding: 3px 9px;
  white-space: nowrap;
}

.poster-url-inline {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.poster-grid {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 6px;
  border: 1px dashed var(--line);
  border-radius: 10px;
  min-height: 96px;
  scrollbar-width: thin;
}

.poster-option {
  flex: 0 0 58px;
  height: 84px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #131b2b;
  padding: 2px;
  cursor: pointer;
}

.poster-option img {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  object-fit: cover;
  background: #0c1019;
}

.poster-option.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(46, 178, 255, 0.38);
  transform: translateY(-1px);
}

.poster-grid .muted {
  padding: 8px 4px;
}

.posted-list {
  display: grid;
  gap: 8px;
}

.posted-card {
  background: #131b2b;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
}

.posted-card .links {
  margin-top: 6px;
  display: grid;
  gap: 2px;
  color: var(--muted);
  font-size: 0.85rem;
  word-break: break-all;
}

@media (max-width: 720px) {
  .app {
    width: calc(100vw - 20px);
    margin: 10px auto;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .inline {
    grid-template-columns: 1fr;
  }

  .key-inline {
    grid-template-columns: 1fr 1fr;
  }

  .poster-url-inline {
    grid-template-columns: 1fr;
  }

  .result-item {
    grid-template-columns: 52px 1fr;
  }

  .result-item img {
    width: 52px;
    height: 74px;
  }

  .selected-item {
    flex-direction: column;
    align-items: flex-start;
  }
}