:root {
  --color-garden-green: #4CAF50;
  --color-leaf-green: #8BC34A;
  --color-soft-mint: #E8F5E9;
  --color-cream: #FDFDF9;
  --color-white: #FFFFFF;
  --color-dark-green: #1B5E20;
  --color-text-main: #2C3E2D;
  --color-text-muted: #4A634D;
  --shadow-subtle: 0 8px 24px rgba(27, 94, 32, 0.08);
  --shadow-hover: 0 16px 32px rgba(27, 94, 32, 0.15);
  --border-radius-card: 24px;
  --border-radius-button: 30px;
  --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Nunito', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--color-cream);
  color: var(--color-text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

html {
  scroll-behavior: smooth;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--color-dark-green);
  font-weight: 800;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.5rem;
  line-height: 1.2;
}

h2 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

a {
  color: var(--color-garden-green);
  text-decoration: none;
  transition: var(--transition-smooth);
}

a:hover {
  color: var(--color-dark-green);
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(253, 253, 249, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  padding: 1rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-smooth);
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-dark-green);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--color-dark-green);
  font-weight: 700;
}

.nav-links a:hover {
  color: var(--color-garden-green);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-dark-green);
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-block;
  background-color: var(--color-garden-green);
  color: var(--color-white);
  padding: 1rem 2rem;
  border-radius: var(--border-radius-button);
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
  box-shadow: 0 4px 10px rgba(76, 175, 80, 0.3);
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
}

.btn:hover {
  background-color: var(--color-leaf-green);
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(76, 175, 80, 0.4);
}

/* Sections */
section {
  padding: 6rem 5%;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 8rem;
  position: relative;
  background: linear-gradient(135deg, var(--color-soft-mint) 0%, var(--color-cream) 100%);
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero .subtitle {
  font-size: 1.4rem;
  margin-bottom: 2.5rem;
}

.floating-element {
  position: absolute;
  opacity: 0.8;
  z-index: 1;
  animation: float 6s ease-in-out infinite;
}

.el-1 { top: 20%; left: 10%; font-size: 3rem; animation-delay: 0s; }
.el-2 { top: 15%; right: 15%; font-size: 4rem; animation-delay: 1s; }
.el-3 { bottom: 25%; left: 15%; font-size: 3.5rem; animation-delay: 2s; }
.el-4 { bottom: 20%; right: 10%; font-size: 3rem; animation-delay: 3s; }

@keyframes float {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

/* About Section */
.about {
  background-color: var(--color-white);
  text-align: center;
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.skills-list {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.skill-tag {
  background-color: var(--color-soft-mint);
  color: var(--color-dark-green);
  padding: 0.8rem 1.5rem;
  border-radius: var(--border-radius-button);
  font-weight: 700;
  box-shadow: var(--shadow-subtle);
}

/* Cards (Learning & Features) */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-card);
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-subtle);
  transition: var(--transition-smooth);
  border: 2px solid transparent;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-soft-mint);
}

.card-icon {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  display: inline-block;
}

/* App Showcase */
.showcase {
  background-color: var(--color-soft-mint);
  text-align: center;
}

.phone-mockup {
  width: 300px;
  height: 600px;
  background-color: #222;
  border-radius: 40px;
  margin: 0 auto;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  border: 8px solid #fff;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.phone-mockup:hover {
  transform: scale(1.02);
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, #87CEEB 0%, #E8F5E9 100%);
  display: flex;
  flex-direction: column;
  padding: 2rem 1rem;
}

.game-title {
  font-size: 1.8rem;
  color: var(--color-dark-green);
  font-weight: 900;
  margin-top: 2rem;
}

.game-elements {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 3rem;
}

.game-el {
  background: rgba(255, 255, 255, 0.8);
  border-radius: 15px;
  padding: 1rem;
  font-size: 2.5rem;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  animation: bounce 2s infinite alternate;
}

.game-el:nth-child(even) {
  animation-delay: 1s;
}

@keyframes bounce {
  from { transform: translateY(0); }
  to { transform: translateY(-10px); }
}

/* Privacy & Contact */
.privacy, .contact {
  text-align: center;
  background-color: var(--color-white);
}

.contact {
  background-color: var(--color-soft-mint);
}

.contact-email {
  font-size: 1.5rem;
  font-weight: 800;
  margin-top: 2rem;
  display: inline-block;
  background-color: var(--color-white);
  padding: 1rem 2rem;
  border-radius: var(--border-radius-button);
  box-shadow: var(--shadow-subtle);
}

/* Footer */
footer {
  background-color: var(--color-dark-green);
  color: var(--color-soft-mint);
  text-align: center;
  padding: 4rem 5% 2rem;
}

.footer-logo {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  list-style: none;
  margin: 2rem 0;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--color-white);
  opacity: 0.8;
}

.footer-links a:hover {
  opacity: 1;
}

.copyright {
  opacity: 0.6;
  font-size: 0.9rem;
  margin-top: 2rem;
}

/* Privacy Policy Page specifics */
.policy-header {
  background-color: var(--color-soft-mint);
  padding: 8rem 5% 4rem;
  text-align: center;
}

.policy-content {
  background-color: var(--color-white);
  padding: 4rem 5%;
}

.policy-container {
  max-width: 800px;
  margin: 0 auto;
}

.policy-container h2 {
  text-align: left;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-size: 1.8rem;
}

.policy-container ul {
  margin-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
}

.policy-container li {
  margin-bottom: 0.5rem;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Responsive */
@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  
  .menu-toggle {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--color-white);
    flex-direction: column;
    align-items: center;
    padding-top: 3rem;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  }
  
  .nav-links.active {
    left: 0;
  }
  
  .floating-element {
    display: none;
  }
}