* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #10202f;
  background:
    linear-gradient(135deg, rgba(246, 249, 251, 0.94), rgba(231, 241, 248, 0.88)),
    url("../assets/aidbro-logo.svg") center 18% / min(480px, 72vw) no-repeat;
}

.welcome-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 18px;
}

.hero {
  width: min(980px, 100%);
  min-height: min(620px, calc(100vh - 64px));
  display: grid;
  grid-template-columns: minmax(220px, 0.85fr) minmax(280px, 1.35fr);
  align-items: center;
  gap: 44px;
  padding: clamp(28px, 5vw, 64px);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(31, 65, 94, 0.12);
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(27, 58, 83, 0.16);
}

.brand-panel {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  padding: clamp(18px, 4vw, 44px);
  background: #ffffff;
  border: 1px solid rgba(31, 65, 94, 0.1);
  border-radius: 8px;
}

.brand-logo {
  width: min(260px, 100%);
  height: auto;
  display: block;
}

.welcome-content {
  max-width: 590px;
}

.eyebrow {
  margin: 0 0 12px;
  color: #0b7a75;
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: #123451;
  font-size: clamp(54px, 8vw, 96px);
  line-height: 0.95;
  letter-spacing: 0;
}

.subtitle {
  margin: 18px 0 0;
  color: #1d5e84;
  font-size: clamp(26px, 4.5vw, 48px);
  font-weight: 700;
}

.powered {
  margin: 32px 0 0;
  color: #263847;
  font-size: clamp(18px, 2.4vw, 26px);
  font-weight: 600;
}

.contact {
  width: fit-content;
  margin: 24px 0 0;
  padding: 13px 18px;
  color: #ffffff;
  background: #0b7a75;
  border-radius: 8px;
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 700;
}

.contact span {
  font-weight: 500;
}

.address {
  max-width: 480px;
  margin: 20px 0 0;
  color: #34495a;
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.45;
  font-style: normal;
  font-weight: 600;
}

.whatsapp-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 10;
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  background: #25d366;
  border-radius: 50%;
  box-shadow: 0 14px 34px rgba(21, 88, 57, 0.28);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 18px 42px rgba(21, 88, 57, 0.34);
}

.whatsapp-float:focus-visible {
  outline: 3px solid #123451;
  outline-offset: 4px;
}

.whatsapp-float img {
  width: 34px;
  height: 34px;
  display: block;
}

@media (max-width: 760px) {
  body {
    background:
      linear-gradient(135deg, rgba(246, 249, 251, 0.96), rgba(231, 241, 248, 0.92)),
      url("../assets/aidbro-logo.svg") center 9% / min(300px, 74vw) no-repeat;
  }

  .welcome-page {
    padding: 18px;
  }

  .hero {
    min-height: calc(100vh - 36px);
    grid-template-columns: 1fr;
    gap: 28px;
    text-align: center;
  }

  .brand-panel {
    width: min(240px, 70vw);
    justify-self: center;
  }

  .welcome-content {
    max-width: none;
  }

  .contact {
    margin-inline: auto;
  }

  .address {
    margin-inline: auto;
  }

  .whatsapp-float {
    right: 18px;
    bottom: 18px;
    width: 58px;
    height: 58px;
  }

  .whatsapp-float img {
    width: 31px;
    height: 31px;
  }
}