/* ===== COLOR SCHEME ===== */
:root {
  --yellow: #ffd60a;
  --white: #ffffff;
  --grey: #2e2e2e;
  --black: #000000;
}

/* ===== BASE ===== */
body {
  font-family: 'Poppins', sans-serif;
  background-color: var(--white);
  color: var(--grey);
  margin: 0;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ===== HEADER ===== */
header {
  background-color: var(--black);
  color: var(--yellow);
  text-align: center;
  padding: 2rem 1rem;
  position: relative;
}

.fade-in { animation: fadeIn 1.5s ease-in-out; }
.fade-in-delay { animation: fadeIn 2s ease-in-out 0.5s both; }

/* ===== NAV ===== */
nav {
  background: var(--grey);
  text-align: center;
  padding: 0.8rem 0;
}
nav a {
  color: var(--white);
  text-decoration: none;
  margin: 0 15px;
  font-weight: bold;
  transition: color 0.3s;
}
nav a:hover { color: var(--yellow); }

/* ===== HERO ===== */
#hero {
  background: linear-gradient(120deg, var(--yellow), #fff6b3);
  color: var(--black);
  text-align: center;
  padding: 4rem 1rem;
  position: relative;
  overflow: hidden;
  animation: gradientShift 8s infinite alternate ease-in-out;
}
#hero h2 {
  font-size: 1.8rem;
  height: 50px;
  margin-bottom: 0.5rem;
  border-right: 3px solid var(--black);
  white-space: nowrap;
  overflow: hidden;
}
#hero .btn {
  display: inline-block;
  margin-top: 1.2rem;
  background: var(--black);
  color: var(--white);
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 0 10px rgba(0,0,0,0.3);
  transition: all 0.3s;
}
#hero .btn:hover {
  background: var(--grey);
  transform: scale(1.05);
}
.pulse {
  animation: pulse 2s infinite;
}

/* ===== SECTIONS ===== */
.section {
  padding: 2.5rem 1.5rem;
  max-width: 900px;
  margin: auto;
  text-align: center;
}
.section h3 {
  color: var(--black);
  border-left: 5px solid var(--yellow);
  padding-left: 10px;
  margin-bottom: 1rem;
  text-align: left;
}
.slide-up {
  opacity: 0;
  transform: translateY(40px);
  animation: slideUp 1s ease-out forwards;
}

/* ===== DOWNLOADS ===== */
.download-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}
.download-btn {
  display: inline-block;
  background: var(--grey);
  color: var(--white);
  text-decoration: none;
  padding: 0.8rem 1.2rem;
  border-radius: 8px;
  font-weight: bold;
  transition: all 0.3s ease;
}
.download-btn:hover {
  background: var(--black);
  color: var(--yellow);
  transform: translateY(-3px);
}

/* ===== FLOATING SHAPES ===== */
.floating-shapes .shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.15;
  animation: float 10s infinite ease-in-out;
  z-index: 0;
}
.floating-shapes .yellow {
  background: var(--yellow);
  width: 100px;
  height: 100px;
  top: 15%;
  left: 10%;
}
.floating-shapes .grey {
  background: var(--grey);
  width: 120px;
  height: 120px;
  top: 60%;
  left: 75%;
  animation-delay: 3s;
}
.floating-shapes .white {
  background: var(--white);
  width: 80px;
  height: 80px;
  top: 40%;
  left: 50%;
  animation-delay: 6s;
}

/* ===== FOOTER ===== */
footer {
  background: var(--black);
  color: var(--white);
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
  font-size: 0.9rem;
}

/* ===== KEYFRAMES ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0% { box-shadow: 0 0 10px rgba(255, 214, 10, 0.4); }
  50% { box-shadow: 0 0 20px rgba(255, 214, 10, 0.8); }
  100% { box-shadow: 0 0 10px rgba(255, 214, 10, 0.4); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(15deg); }
}
@keyframes gradientShift {
  0% { background: linear-gradient(120deg, var(--yellow), #fff6b3); }
  100% { background: linear-gradient(120deg, #fff6b3, var(--yellow)); }
}