:root {
  --bg: #eef2f0;
  --bg-panel: #ffffff;
  --ink: #12201a;
  --ink-muted: #5a6b62;
  --line: #d5ddd8;
  --accent: #1f6b4f;
  --accent-soft: #e3f2eb;
  --shadow: 0 16px 36px rgba(18, 32, 26, 0.08);
  --font: "Manrope", "Segoe UI", sans-serif;
  --serif: "Source Serif 4", Georgia, serif;
  --radius: 18px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
}

.catalog-atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 420px at 10% -10%, rgba(31, 107, 79, 0.14), transparent 58%),
    radial-gradient(720px 380px at 95% 0%, rgba(47, 110, 145, 0.12), transparent 55%),
    linear-gradient(180deg, #f7faf8 0%, #eef2f0 45%, #e7ece9 100%);
}

.catalog-shell {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.catalog-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  animation: rise 0.55s ease both;
}

.catalog-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.catalog-brand img {
  border-radius: 10px;
}

.catalog-kicker {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.catalog-brand h1 {
  margin: 0.1rem 0 0;
  font-family: var(--serif);
  font-size: clamp(1.9rem, 4vw, 2.55rem);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.version-badge {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.68rem;
  letter-spacing: 0.02em;
  text-transform: none;
  vertical-align: middle;
}

.catalog-nav {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.catalog-nav a {
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.catalog-nav a.catalog-login {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.catalog-nav a:hover {
  background: #fff;
  border-color: #b9c6bf;
  transform: translateY(-1px);
}

.catalog-nav a.catalog-login:hover {
  background: #185a42;
  border-color: #185a42;
  color: #fff;
}

.catalog-lede {
  margin: 0 0 1.35rem;
  max-width: 34rem;
  color: var(--ink-muted);
  font-size: 1.05rem;
  line-height: 1.5;
  animation: rise 0.65s ease both;
  animation-delay: 0.05s;
}

.tool-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.tool-grid li {
  animation: rise 0.7s ease both;
}

.tool-grid li:nth-child(1) { animation-delay: 0.08s; }
.tool-grid li:nth-child(2) { animation-delay: 0.14s; }
.tool-grid li:nth-child(3) { animation-delay: 0.2s; }
.tool-grid li:nth-child(4) { animation-delay: 0.26s; }
.tool-grid li:nth-child(5) { animation-delay: 0.32s; }

.tool-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  padding: 1.05rem 1.15rem;
  text-decoration: none;
  color: inherit;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.tool-card:hover {
  transform: translateY(-2px);
  border-color: #b7c8bf;
  box-shadow: 0 22px 48px rgba(18, 32, 26, 0.12);
}

.tool-logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  flex-shrink: 0;
}

.tool-copy h2 {
  margin: 0 0 0.3rem;
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.tool-copy p {
  margin: 0;
  color: var(--ink-muted);
  line-height: 1.45;
  font-size: 0.95rem;
}

.tool-open {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.8;
}

.tool-card:hover .tool-open {
  opacity: 1;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 640px) {
  .catalog-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .tool-card {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "logo copy"
      "open open";
  }

  .tool-logo { grid-area: logo; }
  .tool-copy { grid-area: copy; }
  .tool-open {
    grid-area: open;
    justify-self: start;
    margin-top: 0.15rem;
  }
}