:root {
  --ink: #0b1e3d;
  --muted: #5c6d87;
  --brand: #00629b;
  --border: #c7d9ea;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(0, 98, 155, 0.13), transparent 30%),
    radial-gradient(circle at 85% 10%, rgba(92, 203, 161, 0.16), transparent 26%),
    linear-gradient(180deg, #f8fbfe 0%, #edf4f8 100%);
}

.site-header,
main {
  width: min(1120px, calc(100% - 3rem));
  margin: 0 auto;
}

.site-header { padding: 1.6rem 0 1.35rem; }

.eyebrow,
.tool-label {
  margin: 0;
  color: #35648e;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }
h1 { margin: 0.25rem 0 0.25rem; font-size: clamp(1.8rem, 3vw, 2.5rem); line-height: 1.05; letter-spacing: -0.035em; }
.intro { margin-bottom: 0; color: var(--muted); font-size: 0.96rem; line-height: 1.45; }

main { padding-bottom: 4rem; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 1rem; margin-bottom: 1rem; }
h2 { margin-bottom: 0; font-size: 1.4rem; }
.tool-count { margin-bottom: 0.12rem; color: var(--muted); font-size: 0.88rem; }

.tool-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1.2rem; }
.tool-card {
  position: relative;
  display: block;
  min-height: 330px;
  overflow: hidden;
  border: 1px solid rgba(166, 195, 220, 0.9);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 16px 32px rgba(8, 34, 74, 0.1);
  color: inherit;
  text-decoration: none;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.tool-card:hover,
.tool-card:focus-visible { transform: translateY(-4px); box-shadow: 0 22px 42px rgba(8, 34, 74, 0.16); outline: none; }
.preview-frame { height: 210px; overflow: hidden; background: #edf4f8; border-bottom: 1px solid var(--border); }
.preview-frame iframe {
  width: 1000px;
  height: 620px;
  border: 0;
  pointer-events: none;
  transform: scale(0.52);
  transform-origin: top left;
}
.tool-copy { padding: 1.15rem 1.2rem 1.25rem; }
.tool-copy h3 { margin: 0.42rem 0 0.85rem; font-size: 1.28rem; }
.open-tool { color: var(--brand); font-size: 0.9rem; font-weight: 700; }
.tool-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: end;
  padding: 1.5rem;
  background: linear-gradient(155deg, rgba(0, 98, 155, 0.97), rgba(8, 34, 74, 0.97));
  color: #fff;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.tool-overlay p { margin-bottom: 1rem; font-size: 1rem; line-height: 1.5; }
.tool-overlay span { font-weight: 700; }
.tool-card:hover .tool-overlay,
.tool-card:focus-visible .tool-overlay { opacity: 1; transform: translateY(0); }

@media (max-width: 620px) {
  .site-header, main { width: min(100% - 2rem, 1120px); }
  .site-header { padding-top: 1.2rem; }
  .section-heading { align-items: start; }
  .preview-frame { height: 185px; }
  .preview-frame iframe { transform: scale(0.46); }
  .tool-card { min-height: 305px; }
  .tool-overlay { position: relative; inset: auto; opacity: 1; transform: none; min-height: 130px; padding: 1.15rem 1.2rem; }
  .tool-copy { padding-bottom: 0.8rem; }
}