/* INAVI landing — about, platforms layout, legal, contact, footer. */

/* ===== About ===== */
#about {
  background: var(--panel);
  padding: 88px 0;
  border-top: 1px solid var(--hairline);
}
.tiles {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 42px;
}
.tile {
  background: var(--tile-bg);
  border: 1px solid var(--tile-brd);
  border-radius: 16px;
  padding: 26px;
}
.tile .ico {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  background: var(--pc-chip);
  color: var(--pc);
}
.tile .ico svg {
  width: 25px;
  height: 25px;
}
.tile h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 6px;
}
.tile p {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== Platforms ===== */
#platforms {
  background: var(--sec-plat);
  padding: 82px 0 56px;
}
.plat-help {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--text-muted);
}
.plat {
  margin-top: 18px;
}
.prow {
  display: flex;
  gap: 48px;
  align-items: center;
  padding: 44px 0;
  border-top: 1px solid var(--hairline-strong);
}
.prow:last-child {
  border-bottom: 1px solid var(--hairline-strong);
}
.prow--rev {
  flex-direction: row-reverse;
}
.pcol {
  flex: 1;
}
.prank {
  font: 600 14px var(--font-mono);
  color: var(--pc);
  letter-spacing: 0.04em;
}
.pbrand {
  margin-top: 8px;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-strong);
}
.pdomain {
  margin-top: 2px;
  font: 13px var(--font-mono);
  color: var(--pc);
}
.pcol p {
  margin-top: 14px;
  font-size: 15px;
  color: var(--text-body);
  max-width: 420px;
}
.pgo {
  display: inline-block;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--pc);
  text-decoration: none;
  border-bottom: 1.5px solid var(--pc-link);
  padding-bottom: 2px;
}

/* ===== Legal + trust ===== */
#legal {
  background: var(--panel);
  padding: 64px 0;
  border-top: 1px solid var(--hairline);
}
.legal-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}
.disc {
  border-left: 3px solid var(--btn-bg);
  padding: 4px 0 4px 26px;
}
.disc h3 {
  margin-bottom: 10px;
  font: 600 12px var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.disc p {
  font-size: 14.5px;
  color: var(--text-body);
}
.trust {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.trust b {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-strong);
}
.trust p {
  margin-top: 4px;
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Contact ===== */
#contact {
  position: relative;
  overflow: hidden;
  background: var(--contact-sec);
  padding: 24px 0 88px;
}
.contact-card {
  position: relative;
  overflow: hidden;
  margin-top: 24px;
  border-radius: 22px;
  background: var(--contact-card-bg);
  border: 1px solid var(--contact-card-brd);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 80px 40px;
  text-align: center;
}
.contact-blob {
  position: absolute;
  width: 380px;
  height: 380px;
  right: -100px;
  top: -140px;
  border-radius: 999px;
  background: radial-gradient(circle, var(--contact-blob), transparent 68%);
  animation: drift 16s ease-in-out infinite;
  pointer-events: none;
}
.contact-inner {
  position: relative;
  z-index: 1;
}
.contact-inner h2 {
  color: var(--contact-strong);
}
.contact-inner p {
  margin: 14px 0 24px;
  font-size: 16px;
  color: var(--contact-body);
}
.mail {
  font-size: clamp(20px, 4vw, 28px);
  font-weight: 700;
  color: var(--contact-strong);
  text-decoration: none;
  border-bottom: 2px solid var(--contact-email-brd);
}

/* ===== Footer ===== */
footer {
  border-top: 1px solid var(--divider);
  background: var(--footer-bg);
  padding: 30px clamp(20px, 4vw, 48px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition:
    background-color 0.4s ease,
    border-color 0.4s ease;
}
footer .nav-logo img {
  opacity: 0.8;
}
footer span {
  font-size: 13px;
  color: var(--text-muted);
}