* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface-hover: #22263a;
  --border: #2a2e45;
  --accent: #f4840a;
  --accent-dim: rgba(244, 132, 10, 0.15);
  --text: #e8eaf0;
  --text-muted: #8890a8;
  --success: #3ecf8e;
  --success-dim: rgba(62, 207, 142, 0.15);
  --radius: 10px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

/* ── Header ── */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 24px 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-logo svg {
  width: 32px;
  height: 32px;
  fill: var(--accent);
  flex-shrink: 0;
}

header h1 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
}

header h1 span {
  color: var(--accent);
}

.header-meta {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 0.85rem;
}


.toolbar {
  padding: 24px 32px 0;
  max-width: 1200px;
  margin: 0 auto;
}

.search-wrap {
  position: relative;
  max-width: 440px;
}

.search-wrap svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  stroke: var(--text-muted);
  pointer-events: none;
}

#search {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px 10px 38px;
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}

#search::placeholder {
  color: var(--text-muted);
}

#search:focus {
  border-color: var(--accent);
}

main {
  padding: 24px 32px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

#snippet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.2s, transform 0.15s;
}

.card:hover {
  transform: translateY(-2px);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.card-description {
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.5;
  flex: 1;
}

.btn-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  width: 100%;
}

.btn-copy svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  flex-shrink: 0;
}

.btn-copy:hover {
  background: var(--accent);
  color: #fff;
}

.btn-copy.copied {
  background: var(--success-dim);
  color: var(--success);
  border-color: var(--success);
}

#empty {
  display: none;
  grid-column: 1 / -1;
  text-align: center;
  padding: 64px 20px;
  color: var(--text-muted);
}

#empty svg {
  width: 48px;
  height: 48px;
  stroke: var(--border);
  margin-bottom: 12px;
}

#empty p {
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  header,
  .toolbar,
  main {
    padding-left: 16px;
    padding-right: 16px;
  }
}