:root {
  color-scheme: only light;
  --bg-top: #f7fbff;
  --bg-bottom: #e8f1ff;
  --card-bg: #ffffff;
  --text-main: #0f172a;
  --text-muted: #334155;
  --accent: #0057d9;
  --accent-soft: #d9e8ff;
  --border: #d5e1f2;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text-main);
  background: linear-gradient(160deg, var(--bg-top), var(--bg-bottom));
  overflow-x: hidden;
}

.page {
  min-height: 100dvh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 1rem;
}

.panel {
  width: min(860px, 100%);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1rem;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.1);
}

.badge {
  display: inline-block;
  margin: 0;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: rgba(11, 96, 255, 0.12);
  color: var(--accent);
  font-weight: 700;
}

.panel-header {
  margin-bottom: 1rem;
}

h1 {
  margin: 0.5rem 0 0.25rem;
  font-size: clamp(1.4rem, 4vw, 2rem);
}

.helper,
p {
  margin: 0.1rem 0 0;
  color: var(--text-muted);
  line-height: 1.55;
}

.block {
  margin-top: 1rem;
  padding: 0.9rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fbfdff;
}

label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.row {
  display: flex;
  gap: 0.55rem;
  align-items: center;
}

.row.secondary {
  margin-top: 0.6rem;
  justify-content: space-between;
}

input {
  flex: 1;
  border: 1px solid #bfd0ec;
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
  font-size: 1rem;
}

button {
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  padding: 0.65rem 0.9rem;
  font-weight: 700;
}

button.secondary-btn {
  background: #e6edf8;
  color: #1f2937;
}

.message {
  min-height: 1.2rem;
  margin-top: 0.45rem;
  font-size: 0.92rem;
}

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

.hidden {
  display: none;
}

.results {
  margin-top: 1rem;
  display: grid;
  gap: 0.8rem;
}

.result-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.9rem;
  overflow: hidden;
}

.result-head {
  display: flex;
  gap: 0.8rem;
}

.result-image {
  width: 88px;
  height: 88px;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid #d6e2f2;
  background: #f1f5f9;
}

.line {
  margin: 0.25rem 0;
  color: #1f2937;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.emph {
  font-weight: 800;
  font-style: italic;
}

.copy-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 0.35rem;
  margin: 0.18rem 0;
}

.copy-text {
  min-width: 0;
  flex: initial;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.copy-btn {
  background: var(--accent-soft);
  color: #1b3f82;
  padding: 0.25rem 0.55rem;
  font-size: 0.8rem;
  flex: 0 0 auto;
}

.stock-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.stock-table th,
.stock-table td {
  border: 1px solid #dae5f4;
  padding: 0.4rem;
  text-align: left;
}

.stock-note {
  margin-top: 0.45rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.api-ref {
  margin-top: 1rem;
  font-size: 0.83rem;
}

code {
  font-size: 0.88rem;
  word-break: break-all;
}

@media (max-width: 640px) {
  .page {
    padding: 0.65rem;
  }

  .panel {
    padding: 0.75rem;
  }

  .block {
    padding: 0.7rem;
  }

  .row {
    flex-direction: column;
    align-items: stretch;
  }

  .result-head {
    flex-direction: column;
    gap: 0.45rem;
  }

  .result-card {
    padding: 0.7rem;
  }

  .result-image {
    width: 84px;
    height: 84px;
  }

  .copy-line {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.18rem;
    margin: 0.1rem 0;
  }

  .copy-text {
    width: 100%;
    flex: initial;
  }

  .copy-btn {
    align-self: flex-start;
    padding: 0.2rem 0.52rem;
    font-size: 0.78rem;
  }

  .line {
    margin: 0.12rem 0;
  }

  .api-ref code {
    overflow-wrap: anywhere;
  }
}