:root {
  /* App Palette */
  --orange: #FE7D55;
  --cyan: #4CC9F0;
  --lime: #BEE11E;
  --pink: #F72585;
  --purple: #7209B7;
  --yellow: #FFD166;
  --baby-pink: #FF99C8;
  --background: #FFF9FC;
  --text-black: #1D1D1D;
  --text-grey: #636E72;
  --surface: #FFFFFF;
  
  /* Neobrutalist Shadow */
  --pop-shadow: 4px 4px 0px rgba(29, 29, 29, 0.1);
  --pop-shadow-large: 6px 6px 0px rgba(29, 29, 29, 0.15);
  
  --grad: linear-gradient(135deg, var(--orange) 0%, var(--pink) 100%);
}

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

body {
  font-family: 'Fredoka', cursive;
  background-color: var(--background);
  color: var(--text-black);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(at 0% 0%, rgba(254, 125, 85, 0.1) 0, transparent 40%),
    radial-gradient(at 100% 100%, rgba(247, 37, 133, 0.1) 0, transparent 40%);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

header {
  padding: 2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-black);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.5px;
}

nav a {
  text-decoration: none;
  color: var(--text-black);
  font-weight: 700;
  margin-left: 2rem;
  opacity: 0.6;
  transition: 0.2s;
}

nav a:hover {
  opacity: 1;
  color: var(--orange);
}

.nav-cta {
  background: var(--orange);
  color: white !important;
  padding: 0.8rem 1.5rem;
  border-radius: 20px;
  opacity: 1 !important;
  box-shadow: var(--pop-shadow);
}

/* Hero Section */
.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4rem 0;
  gap: 4rem;
}

.hero-content {
  flex: 1;
  text-align: left;
}

.hero-content h1 {
  font-size: 4.5rem;
  line-height: 1;
  margin-bottom: 2rem;
  font-weight: 800;
  letter-spacing: -2px;
}

.hero-content p {
  font-size: 1.4rem;
  margin-bottom: 3rem;
  font-weight: 500;
  color: var(--text-grey);
}

.cta-group {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.btn {
  padding: 1.2rem 2.5rem;
  border-radius: 28px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
  transition: 0.2s;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 2.5px solid var(--text-black);
}

.btn-primary {
  background: var(--orange);
  color: white;
  box-shadow: var(--pop-shadow);
}

.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--text-black);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text-black);
  box-shadow: var(--pop-shadow);
}

.btn-secondary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--text-black);
}

/* Phone Mockup */
.mockup-container {
  flex: 0.8;
  display: flex;
  justify-content: center;
}

.phone-mockup {
  width: 280px;
  height: 580px;
  background: var(--text-black);
  border-radius: 44px;
  padding: 12px;
  box-shadow: var(--pop-shadow-large);
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--background);
  border-radius: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  border: 2px solid var(--text-black);
}

/* Features Section */
.features-section {
  padding: 6rem 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
}

.feature-card {
  background: var(--surface);
  padding: 3rem;
  border-radius: 35px;
  border: 2.5px solid var(--text-black);
  box-shadow: var(--pop-shadow);
  text-align: center;
  transition: 0.2s;
}

.feature-card:nth-child(1) { border-color: var(--orange); }
.feature-card:nth-child(2) { border-color: var(--cyan); }
.feature-card:nth-child(3) { border-color: var(--lime); }

.feature-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0px rgba(29, 29, 29, 0.2);
}

.feature-icon {
  font-size: 3.5rem;
  margin-bottom: 2rem;
}

.feature-card h3 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.feature-card p {
  color: var(--text-grey);
  font-weight: 500;
}

/* Interactive Vibe Check */
.vibe-check-card {
  margin-top: 4rem;
  background: var(--surface);
  border-radius: 40px;
  padding: 5rem;
  border: 3px solid var(--text-black);
  box-shadow: var(--pop-shadow-large);
  text-align: center;
}

.vibe-input-group {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

input {
  padding: 1.4rem 2.5rem;
  border-radius: 28px;
  border: 2.5px solid var(--text-black);
  background: var(--background);
  font-family: inherit;
  font-size: 1.2rem;
  width: 300px;
  outline: none;
  transition: 0.2s;
}

input:focus {
  border-color: var(--orange);
  transform: translateY(-2px);
}

.check-btn {
  padding: 1.4rem 3.5rem;
  border-radius: 28px;
  background: var(--orange);
  border: 2.5px solid var(--text-black);
  color: white;
  font-weight: 800;
  cursor: pointer;
  font-size: 1.2rem;
  box-shadow: var(--pop-shadow);
  transition: 0.2s;
}

.check-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--text-black);
}

/* Loading Psychology Simulation */
.loading-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: var(--background);
  z-index: 1000;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.spinner {
  width: 100px;
  height: 100px;
  border: 10px solid var(--text-black);
  border-top: 10px solid var(--orange);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Footer Section */
footer {
  margin-top: 10rem;
  padding: 6rem 0;
  border-top: 3px solid var(--text-black);
  text-align: left;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 6rem;
}

.footer-col h4 {
  font-size: 1.4rem;
  margin-bottom: 2rem;
  font-weight: 800;
  text-transform: uppercase;
}

.footer-col li {
  margin-bottom: 1rem;
}

.footer-col a {
  text-decoration: none;
  color: var(--text-black);
  font-weight: 600;
  opacity: 0.6;
  transition: 0.2s;
}

.footer-col a:hover {
  opacity: 1;
  color: var(--orange);
}

@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
  }
  .hero-content h1 {
    font-size: 3.5rem;
  }
  .hero-content {
    text-align: center;
  }
  .cta-group {
    justify-content: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 4rem;
  }
  .phone-mockup {
    display: none;
  }
}