:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --ink: #12141a;
  --muted: #5c6474;
  --line: #e3e7f0;
  --blue: #1c54e3;
  --blue-dark: #143db0;
  --blue-soft: #e8eefc;
  --max: 1120px;
  --header: 68px;
  --radius: 16px;
  --font: "Outfit", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header) + 12px); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); }
.skip {
  position: absolute;
  left: -999px;
}
.skip:focus {
  left: 8px;
  top: 8px;
  z-index: 50;
  background: var(--blue);
  color: #fff;
  padding: 8px 12px;
  border-radius: 8px;
}

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header);
  background: rgba(244, 246, 251, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  height: var(--header);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.02em;
  font-size: 1.15rem;
}
.brand img {
  width: 44px;
  height: 44px;
  padding: 0;
}
.nav {
  display: flex;
  align-items: center;
  gap: 8px 18px;
}
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}
.nav a:hover,
.nav a[aria-current="page"] { color: var(--ink); }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--blue);
  color: #fff !important;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 10px 16px;
  border-radius: 999px;
}
.btn:hover { background: var(--blue-dark); }
.btn-ghost {
  background: var(--blue-soft);
  color: var(--blue) !important;
}
.btn-ghost:hover { background: #d7e1fa; }
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; }
.btn.soon {
  background: transparent;
  color: var(--muted) !important;
  border: 1px dashed var(--line);
  cursor: default;
  pointer-events: none;
}

.menu { display: none; }
.menu summary {
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  color: var(--blue);
  padding: 8px 4px;
}
.menu summary::-webkit-details-marker { display: none; }
.menu nav {
  position: absolute;
  right: 20px;
  top: var(--header);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  min-width: 180px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 12px 30px rgba(18, 20, 26, 0.08);
}
.menu nav a { padding: 8px 10px; border-radius: 8px; }
.menu nav .btn { margin-top: 6px; }

.hero {
  padding: 64px 0 28px;
}
.hero-grid {
  display: block;
  max-width: 40rem;
  margin-inline: 0;
  text-align: start;
}
.kicker {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 12px;
}
h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.3rem);
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin: 0 0 16px;
  font-weight: 650;
}
h2 {
  font-size: clamp(1.5rem, 2.6vw, 1.9rem);
  letter-spacing: -0.03em;
  margin: 0 0 10px;
  font-weight: 650;
}
h3 { margin: 0 0 6px; font-size: 1.15rem; font-weight: 650; }
.lede {
  color: var(--muted);
  font-size: 1.12rem;
  max-width: 38rem;
  margin: 0 0 24px;
}
section { padding: 48px 0 16px; }
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin-bottom: 22px;
}
.section-head p { margin: 0; color: var(--muted); max-width: 36rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}
.card img,
.card .cover {
  width: 100%;
  height: 168px;
  object-fit: cover;
  background: #eef1f7;
}
.card img.icon {
  object-fit: contain;
  object-position: center;
  padding: 16px;
}
.card img.icon-aipong {
  background: #ffd84c;
}
.card img.icon-voicebirdy {
  background: #77ccd6;
}
.card-body {
  padding: 16px 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.card-body p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  flex: 1;
}
.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--blue);
  background: var(--blue-soft);
  padding: 4px 8px;
  border-radius: 999px;
  width: fit-content;
}
.tag.paid { color: #8a5a00; background: #fff3d6; }

.prose {
  max-width: 40rem;
  color: var(--muted);
}
.prose p { margin: 0 0 14px; }
.about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 280px);
  align-items: start;
  gap: 28px 40px;
  text-align: start;
}
.about-art {
  margin: 0;
  max-width: 280px;
  width: 100%;
}
.about-art img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  background: #e6efec;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 18px;
}
.contact-card h2 {
  margin: 0 0 6px;
  font-size: 1.15rem;
  font-weight: 650;
}
.contact-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.contact-card p { margin: 0; color: var(--muted); }
.contact-card a { font-weight: 600; }

footer {
  margin-top: 56px;
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--ink); }

@media (max-width: 1080px) {
  .nav-desktop { display: none; }
  .menu { display: block; position: relative; }
}

@media (max-width: 900px) {
  .grid,
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding-top: 36px; }
  .about-split { grid-template-columns: 1fr; }
  .about-art { max-width: 220px; }
}

@media (max-width: 620px) {
  .wrap { width: calc(100% - 28px); }
  .grid,
  .contact-grid { grid-template-columns: 1fr; }
  .section-head { display: block; }
}