/* GLOBAL */
body {
  margin: 0;
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: linear-gradient(135deg, #FF9ACB, #FFD88B, #99F2C8, #9AD0FF);
  background-size: 400% 400%;
  animation: gradientShift 12s infinite alternate;
  color: #333;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

h1, h2, h3, h4 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700; /* bold title effect */
  margin: 0;
}

a { text-decoration: none; color: inherit; }

/* HEADER */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 40px;
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.55);
  backdrop-filter: blur(8px);
  z-index: 10;
  border-radius: 0 0 18px 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 52px;
  height: 52px;
  border-radius: 12px;
}

.brand-name {
  font-size: 24px;
  font-weight: 700;
}

nav a {
  margin-left: 22px;
  font-weight: 600;
}

/* HERO */
.hero {
  display: flex;
  justify-content: space-between;
  padding: 80px 40px;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.tag {
  background: #ffdedd;
  padding: 6px 14px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 14px;
}

.hero-content {
  max-width: 580px;
}

.hero h1 {
  font-size: 46px;
  margin-top: 16px;
}

.subtitle {
  margin: 18px 0;
  font-size: 18px;
  line-height: 1.6;
}

.hero-buttons {
  margin: 20px 0 30px;
  display: flex;
  gap: 14px;
}

.btn {
  padding: 14px 24px;
  border-radius: 16px;
  font-weight: 600;
}

.primary {
  background: #FF8F7A;
  color: #fff;
}

.secondary {
  background: #FFE8C8;
}

.preview-features {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.preview-card {
  display: flex;
  gap: 12px;
  background: #fff;
  padding: 14px 18px;
  border-radius: 18px;
  align-items: center;
  flex: 1 1 220px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.08);
}

.icon {
  font-size: 28px;
}

/* HERO IMAGE */
.hero-image img {
  width: 320px;
  border-radius: 22px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.16);
}

/* FEATURES */
.features {
  padding: 60px 40px;
}

.features h2 {
  font-size: 36px;
  margin-bottom: 30px;
}

.feature-grid {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.feature-box {
  background: #fff;
  padding: 28px;
  border-radius: 18px;
  flex: 1 1 260px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

.icon-large {
  font-size: 40px;
}

/* ABOUT SECTIONS */
.about-app,
.about-company {
  background: rgba(255,255,255,0.75);
  padding: 50px 40px;
  border-radius: 24px;
  margin: 40px;
  backdrop-filter: blur(6px);
}

.about-app h2,
.about-company h2 {
  font-size: 32px;
  margin-bottom: 16px;
}

.about-app p,
.about-company p {
  font-size: 18px;
  line-height: 1.7;
}

/* FOOTER */
.footer {
  text-align: center;
  padding: 26px;
  margin-top: 40px;
  background: rgba(255,255,255,0.65);
  backdrop-filter: blur(6px);
}

html {
  scroll-padding-top: 100px; /* fix header overlap */
  scroll-behavior: smooth;
}

.google-play-btn img {
  height: 52px;
  border-radius: 12px;
  transition: transform .2s;
}

.google-play-btn img:hover {
  transform: scale(1.05);
}