:root {
  --bg: #f4f8ff;
  --surface: #ffffff;
  --surface-soft: #eef4ff;
  --text: #172033;
  --text-muted: #4f5f83;
  --accent: #0066cc;
  --accent-strong: #004f9f;
  --warning: #8a4f00;
  --warning-bg: #fff4dd;
  --ok: #125f3b;
  --ok-bg: #e7f8ef;
  --border: #dbe6ff;
  --shadow: 0 12px 30px rgba(16, 40, 88, 0.1);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI Variable", "Microsoft YaHei UI", "Trebuchet MS", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 10%, #dcecff 0 13%, transparent 42%),
    radial-gradient(circle at 88% 2%, #ffe7cf 0 10%, transparent 39%),
    linear-gradient(160deg, #f6f9ff 0%, #f0f6ff 42%, #fff8f0 100%);
}

.bg-orb {
  position: fixed;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  filter: blur(56px);
  z-index: -1;
}

.bg-orb-left {
  left: -80px;
  top: 120px;
  background: rgba(0, 102, 204, 0.22);
}

.bg-orb-right {
  right: -120px;
  top: 42px;
  background: rgba(255, 138, 43, 0.28);
}

.shell {
  width: min(1080px, 92vw);
  margin: 34px auto 56px;
}

.hero {
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.95), rgba(236, 245, 255, 0.9));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 28px 28px 24px;
  animation: rise-in 0.45s ease-out;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.77rem;
}

h1 {
  margin: 8px 0 10px;
  font-size: clamp(1.6rem, 2.8vw, 2.3rem);
}

.hero-subtitle {
  margin: 0;
  color: var(--text-muted);
  max-width: 58ch;
  line-height: 1.56;
}

.controls {
  margin-top: 18px;
  display: grid;
  gap: 12px;
}

.search-box {
  display: grid;
  gap: 8px;
  font-weight: 600;
}

.search-box span {
  font-size: 0.95rem;
}

.search-box input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  font-size: 1rem;
  padding: 12px 14px;
  box-shadow: inset 0 1px 2px rgba(11, 37, 84, 0.04);
}

.search-box input:focus {
  outline: 2px solid rgba(0, 102, 204, 0.24);
  border-color: #9ac8fb;
}

.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.category-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  border-radius: 999px;
  font-weight: 600;
  padding: 8px 14px;
  cursor: pointer;
  transition: all 0.18s ease;
}

.category-btn:hover {
  border-color: #93bfff;
  color: var(--accent-strong);
}

.category-btn.active {
  background: linear-gradient(120deg, #0070e2, #0058b6);
  border-color: transparent;
  color: #ffffff;
}

.global-message {
  margin-top: 14px;
  border: 1px solid #ffd8a6;
  background: #fff6e8;
  color: #734200;
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 0.95rem;
}

.card-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: 0 8px 18px rgba(18, 38, 84, 0.08);
  display: grid;
  gap: 12px;
  animation: rise-in 0.34s ease-out;
}

.card-head {
  display: grid;
  gap: 6px;
}

.card-title {
  margin: 0;
  font-size: 1.08rem;
}

.card-desc {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.45;
  font-size: 0.94rem;
}

.chip {
  width: fit-content;
  font-size: 0.78rem;
  font-weight: 700;
  color: #0f4f88;
  background: var(--surface-soft);
  border: 1px solid #cfe1ff;
  border-radius: 999px;
  padding: 3px 9px;
}

.card-actions {
  display: flex;
  gap: 8px;
}

.open-btn,
.copy-btn {
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-weight: 700;
  padding: 9px 12px;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.open-btn {
  background: linear-gradient(120deg, #006fdf, #0050a8);
  color: #fff;
}

.copy-btn {
  background: #ebf2ff;
  color: #1f3b66;
}

.open-btn:hover,
.copy-btn:hover {
  transform: translateY(-1px);
}

.open-btn:disabled {
  opacity: 0.65;
  cursor: progress;
}

.card-status {
  margin: 0;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  line-height: 1.4;
  padding: 7px 10px;
}

.card-status.idle {
  display: none;
}

.card-status.ok {
  background: var(--ok-bg);
  color: var(--ok);
  border: 1px solid #b9ebd1;
}

.card-status.warn {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid #ffdba8;
}

.fallback {
  border-top: 1px dashed #d5e1fb;
  padding-top: 10px;
  display: grid;
  gap: 8px;
}

.fallback-title {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: #33476f;
}

.fallback-command {
  margin: 0;
  background: #f4f7ff;
  border: 1px solid #d6e3fe;
  border-radius: 8px;
  padding: 7px 9px;
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.fallback-steps {
  margin: 0;
  padding-left: 18px;
  color: #4a5f89;
  font-size: 0.9rem;
  line-height: 1.45;
}

.compat-note {
  margin: 0;
  font-size: 0.84rem;
  color: #5b6f95;
}

.empty-state {
  border: 1px dashed #cfdfff;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.75);
  padding: 20px;
  color: #4f6290;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(9px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(1080px, 94vw);
    margin-top: 20px;
  }

  .hero {
    padding: 22px 18px 18px;
  }

  .card-actions {
    flex-wrap: wrap;
  }

  .open-btn,
  .copy-btn {
    width: 100%;
  }
}