/* ---- Reset + Base ---- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  color: #333;
  background: #f7f7f7;
  line-height: 1.6;
}

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

/* ---- Buttons ---- */
.btn-primary {
  background: #61dafb;
  color: #fff;
  padding: 0.8rem 1.8rem;
  border-radius: 8px;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
  display: inline-block;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.btn-secondary {
  background: #333;
  color: #fff;
  padding: 0.8rem 1.8rem;
  border-radius: 8px;
  font-weight: 600;
  display: inline-block;
  margin-left: 1rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* ---- Hero Section ---- */
.hero {
  position: relative;
  text-align: center;
  padding: 8rem 2rem 6rem;
  background: linear-gradient(135deg,#61dafb33,#fefefe);
  overflow: hidden;
}

.hero-bg svg {
  position: absolute;
  width: 300px;
  height: 300px;
  animation: float 10s infinite ease-in-out alternate;
  z-index: 0;
  opacity: 0.15;
}

.blob1 { top: -50px; left: -50px; }
.blob2 { top: 80px; left: 60%; animation-duration: 15s; }

@keyframes float {
  0% { transform: translateY(0px) rotate(0deg);}
  50% { transform: translateY(20px) rotate(20deg);}
  100% { transform: translateY(0px) rotate(0deg);}
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.5rem;
  margin-bottom: 2rem;
}

.hero-buttons a {
  margin: 0.5rem;
}

.logo {
  width: 250px;
  height: auto;
  display: block;
  margin: 0 auto 1.5rem;
}

/* ---- Features Section ---- */
.features {
  background: linear-gradient(135deg, #fefefe 0%, #f0f8ff 100%);
  padding: 6rem 2rem;
  clip-path: polygon(0 50px, 100% 0, 100% 100%, 0% 100%);
}

.features .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(250px,1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.card {
  background: #fff;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.card h3 {
  margin-bottom: 1rem;
}

/* Animate cards on scroll */
.card.animate {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.8s ease-out;
}

.card.animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Usage Section ---- */
.usage {
  background: #f0f8ff;
  padding: 6rem 2rem;
}

.usage h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.usage .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(250px,1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* ---- Download Section ---- */
.download {
  text-align: center;
  padding: 6rem 2rem;
  background: #fff;
}

.download p {
  margin-bottom: 2rem;
  font-size: 1.2rem;
}

.logo-container {
  text-align: center; /* or flex: left-align if you want top-left */
  margin-bottom: 2rem;
}

/* ---- Footer ---- */
footer {
  text-align: center;
  padding: 2rem;
  background: #333;
  color: #fff;
}