* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font:
    17px/1.6 system-ui,
    -apple-system,
    'Segoe UI',
    sans-serif;
  color: #1a1f2b;
  background: #fff;
}
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88em;
  background: #eef1f6;
  padding: 0.05rem 0.3rem;
  border-radius: 4px;
}
a {
  color: #1a56c4;
}

.hero {
  background: linear-gradient(180deg, #0f1420 0%, #18223a 100%);
  color: #e8edf7;
  padding: 3.5rem 1.5rem 3rem;
  text-align: center;
}
.kicker {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: #8fa7d6;
  margin: 0 0 1rem;
}
.hero h1 {
  font-size: clamp(1.6rem, 4.5vw, 2.6rem);
  line-height: 1.2;
  max-width: 46rem;
  margin: 0 auto 1rem;
}
.hero h1 em {
  color: #7fb0ff;
  font-style: normal;
}
.hero .sub {
  max-width: 44rem;
  margin: 0 auto 1.6rem;
  color: #b9c4da;
}
.cta {
  display: flex;
  gap: 0.7rem;
  justify-content: center;
  flex-wrap: wrap;
}
.button {
  display: inline-block;
  background: #1a56c4;
  color: #fff;
  text-decoration: none;
  padding: 0.6rem 1.2rem;
  border-radius: 9px;
  font-weight: 600;
}
.button.ghost {
  background: transparent;
  border: 1px solid #44537a;
  color: #d7e0f2;
}
.button:hover {
  filter: brightness(1.1);
}

main {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1rem 1.5rem 3rem;
}
section {
  margin-top: 2.8rem;
}
h2 {
  font-size: 1.35rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  margin: 1.2rem 0;
}
.card {
  border: 1px solid #e0e5ec;
  border-radius: 12px;
  padding: 1rem 1.1rem;
  background: #fafbfd;
}
.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
}
.card p {
  font-size: 0.92rem;
  color: #3e4657;
}
.links a {
  margin-right: 0.7rem;
  font-weight: 600;
  font-size: 0.9rem;
}
.hint {
  color: #4a5262;
  font-size: 0.95rem;
}

.table-wrap {
  overflow-x: auto;
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.93rem;
}
th,
td {
  border: 1px solid #dbe1ea;
  padding: 0.55rem 0.7rem;
  text-align: left;
  vertical-align: top;
}
thead th {
  background: #eef2f8;
}
tbody th {
  background: #f7f9fc;
  white-space: nowrap;
}

.compare {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
}
.pane {
  border-radius: 12px;
  padding: 1rem 1.2rem;
}
.pane.pdf {
  background: #faf4f0;
  border: 1px solid #e8d8cd;
}
.pane.wdf {
  background: #f0f6f1;
  border: 1px solid #cfe3d3;
}
.pane h3 {
  margin-top: 0;
}
.pane p {
  font-size: 0.93rem;
}

.transcript {
  background: #0f1420;
  color: #d6dbe6;
  border-radius: 10px;
  padding: 1rem 1.2rem;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.82rem;
  line-height: 1.55;
}

footer {
  border-top: 1px solid #e0e5ec;
  padding: 1.4rem 1.5rem 2.5rem;
  color: #5b6472;
  font-size: 0.88rem;
  text-align: center;
}