@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Dynamic Health Palette based on app UI screenshots */
  --primary-color: #1DA85F; /* Vibrant Green */
  --primary-color-dark: #15854b;
  --primary-color-light: #e8f7ef;
  --secondary-color: #F37021; /* Vibrant Orange */
  --secondary-color-dark: #d95d18;
  --secondary-color-light: #fef0e8;
  
  --bg-color: #F8FAFC; /* Light gray-blue app background */
  --surface-color: #FFFFFF;
  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.4);
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
  --shadow-hero: 0 30px 60px -15px rgba(29, 168, 95, 0.2);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  
  --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition-speed: 0.3s;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Base Typo */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-speed) ease;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Utilities */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.text-center { text-align: center; }
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }

.tagline {
  display: inline-block;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--primary-color);
  background: var(--primary-color-light);
  padding: 8px 16px;
  border-radius: var(--radius-xl);
  margin-bottom: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  transition: transform var(--transition-speed), box-shadow var(--transition-speed), background-color var(--transition-speed);
  border: none;
}

.btn-primary {
  background-color: var(--primary-color);
  color: #fff;
  box-shadow: 0 8px 20px rgba(29, 168, 95, 0.3);
}

.btn-primary:hover {
  background-color: var(--primary-color-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(29, 168, 95, 0.4);
}

.btn-secondary {
  background-color: var(--surface-color);
  color: var(--text-primary);
  border: 1px solid #E5E7EB;
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: #F9FAFB;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }

/* =========================================================================
   HEADER & NAVIGATION
   ========================================================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition-speed), box-shadow var(--transition-speed), padding var(--transition-speed);
  padding: 20px 0;
}

.header.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  padding: 15px 0;
  border-bottom: 1px solid var(--glass-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  height: 48px;
  width: 48px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: var(--shadow-sm);
}

.logo-text {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--primary-color);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-weight: 600;
  color: var(--text-primary);
  position: relative;
  font-size: 1.05rem;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 3px;
  bottom: -6px;
  left: 0;
  background-color: var(--primary-color);
  transition: width var(--transition-speed) ease;
  border-radius: 10px;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--primary-color);
}

.mobile-only { display: none; }
.mobile-menu {
  display: none;
  background: var(--surface-color);
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  padding: 20px;
  box-shadow: var(--shadow-md);
  flex-direction: column;
  gap: 15px;
  border-top: 1px solid #E5E7EB;
}

.mobile-menu.active {
  display: flex;
}

/* =========================================================================
   HERO SECTION
   ========================================================================= */
.hero {
  padding-top: 160px;
  padding-bottom: 100px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-color) 0%, var(--primary-color-light) 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero-title {
  font-size: 4.5rem;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 40px;
  font-weight: 400;
  max-width: 500px;
  color: var(--text-secondary);
}

.hero-ctas {
  display: flex;
  gap: 20px;
  align-items: center;
  margin-bottom: 60px;
}

.store-badge {
  display: inline-block;
  height: 55px;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.store-badge img {
  height: 100%;
}

.store-badge:hover:not(.disabled) {
  transform: translateY(-4px);
  filter: brightness(1.05);
}

.store-badge.disabled {
  position: relative;
  cursor: not-allowed;
  opacity: 0.8;
  filter: grayscale(0.5);
}

.coming-soon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.85);
  color: white;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 30px;
  background: var(--surface-color);
  padding: 24px 36px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  display: inline-flex;
}

.stat-item h4 {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 4px;
  letter-spacing: -0.5px;
}

.stat-item p {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.stat-divider {
  width: 1px;
  height: 50px;
  background-color: #E5E7EB;
}

.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
}

.blob-shape {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 550px;
  height: 550px;
  background: var(--primary-color);
  border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  opacity: 0.12;
  z-index: 0;
  animation: blobFloat 12s ease-in-out infinite alternate;
}

@keyframes blobFloat {
  0% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
  100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; transform: translate(-50%, -50%) rotate(15deg) scale(1.05); }
}

.hero-phone {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 320px;
  border-radius: 42px;
  border: 8px solid #000;
  background: #000; /* Bezels */
}

.frame-shadow {
  box-shadow: var(--shadow-hero);
}

.glass-card {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  padding: 16px 24px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-md);
  z-index: 20;
}

.glass-card .emoji {
  font-size: 1.8rem;
}

.glass-card strong {
  display: block;
  font-size: 1.05rem;
  color: var(--text-primary);
  font-weight: 700;
}

.glass-card small {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
}

.floating-card-1 {
  top: 15%;
  left: -40px;
  animation: float 5s ease-in-out infinite;
}

.floating-card-2 {
  bottom: 15%;
  right: -40px;
  animation: float 6s ease-in-out infinite reverse;
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-18px); }
  100% { transform: translateY(0px); }
}

/* Responsive basics for Hero & Header */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 80px;
  }
  
  .hero-subtitle {
    margin: 0 auto 40px;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .hero-title {
    font-size: 3.5rem;
  }
  
  .desktop-only { display: none; }
  .mobile-only { display: block; }
  .nav-links { display: none; }
  
  .menu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 10px;
  }
  
  .menu-toggle span {
    display: block;
    width: 28px;
    height: 3px;
    background-color: var(--text-primary);
    transition: 0.3s;
    border-radius: 3px;
  }
  
  .floating-card-1 { left: 0; }
  .floating-card-2 { right: 0; }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.8rem;
  }
  .hero-stats {
    flex-direction: column;
    gap: 15px;
    padding: 20px;
    width: 100%;
  }
  .stat-divider {
    width: 50px;
    height: 1px;
  }
}

/* =========================================================================
   FEATURES & INTRO SECTIONS
   ========================================================================= */
.bg-light {
  background-color: var(--primary-color-light);
}
.bg-secondary-light {
  background-color: var(--secondary-color-light) !important;
}
.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.intro {
  padding: 100px 0;
}
.intro-text {
  font-size: 1.25rem;
  max-width: 800px;
  margin-top: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.feature-split {
  padding: 120px 0;
  overflow: hidden;
}
.split-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.feature-split.reverse .split-container {
  direction: rtl;
}
.feature-split.reverse .split-content,
.feature-split.reverse .split-image {
  direction: ltr;
}

.split-content h2 {
  font-size: 3rem;
  margin-bottom: 24px;
  letter-spacing: -1px;
}
.split-content p {
  font-size: 1.15rem;
  margin-bottom: 35px;
  color: var(--text-secondary);
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.feature-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
}
.check-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: bold;
}

.split-image {
  position: relative;
  display: flex;
  justify-content: center;
}
.image-backdrop {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 450px;
  height: 450px;
  background-color: var(--primary-color-light);
  border-radius: 50%;
  z-index: 0;
}
.feature-phone {
  position: relative;
  z-index: 10;
  max-width: 300px;
  border-radius: 42px;
  border: 8px solid #000;
  background: #000;
}

@media (max-width: 1024px) {
  .split-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 70px;
  }
  .feature-split.reverse .split-container {
    direction: ltr;
  }
  .feature-list {
    align-items: flex-start;
    text-align: left;
    display: inline-flex;
  }
  .split-content h2 {
    font-size: 2.5rem;
  }
}

@media (max-width: 640px) {
  .image-backdrop {
    width: 300px;
    height: 300px;
  }
  .feature-phone {
    max-width: 250px;
  }
}

/* =========================================================================
   MYTH BUSTER SECTION
   ========================================================================= */
.myth-buster {
  background-color: var(--primary-color-dark);
  padding: 100px 0;
}
.tagline-white {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}
.text-white { color: white !important; }
.section-title {
  font-size: 2.8rem;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.section-subtitle {
  font-size: 1.15rem;
  max-width: 600px;
  margin-bottom: 60px;
  opacity: 0.95;
  line-height: 1.6;
}

.myths-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.myth-card {
  background: var(--surface-color);
  padding: 30px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}
.myth-card:hover {  
  transform: translateY(-8px);
  box-shadow: 0 25px 30px rgba(0,0,0,0.15);
}

.myth-header {
  font-weight: 800;
  text-transform: uppercase;
  color: #EF4444; /* Red for myth */
  font-size: 0.85rem;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.fact-header {
  font-weight: 800;
  text-transform: uppercase;
  color: var(--primary-color);
  font-size: 0.85rem;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.myth-card p {
  font-size: 1.1rem;
  color: var(--text-primary);
  font-weight: 700;
  margin-bottom: 0;
  line-height: 1.4;
}
.myth-card .fact-text {
  color: var(--text-secondary);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
}
.mt-3 { margin-top: 24px; }

/* Dual Phones layout */
.dual-phones {
  position: relative;
  height: 550px;
  width: 100%;
}
.phone-back {
  position: absolute;
  right: 15%;
  top: 0;
  transform: scale(0.9);
  opacity: 0.8;
  filter: blur(1px);
  z-index: 1;
  transition: 0.5s;
}
.phone-front {
  position: absolute;
  left: 15%;
  top: 50px;
  z-index: 10;
  transition: 0.5s;
}

.dual-phones:hover .phone-back {
  transform: scale(0.95) translate(-10px, -10px);
  filter: blur(0);
}

@media (max-width: 992px) {
  .myths-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }
  .dual-phones {
    height: 450px;
  }
  .phone-back {
    right: 5%;
  }
  .phone-front {
    left: 5%;
  }
}
@media (max-width: 640px) {
  .dual-phones {
    height: 380px;
  }
  .section-title {
    font-size: 2.2rem;
  }
}

/* =========================================================================
   CTA & FOOTER
   ========================================================================= */
.cta-section {
  background-color: var(--primary-color-light);
  padding: 100px 0;
  border-top: 1px solid rgba(29, 168, 95, 0.1);
}
.cta-title {
  font-size: 3.5rem;
  letter-spacing: -1px;
  margin-bottom: 20px;
}
.cta-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin-bottom: 40px;
}
.justify-center {
  justify-content: center;
}

.footer {
  background-color: #111827; /* Dark footer */
  color: white;
  padding: 80px 0 30px;
}
.footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}
.footer-brand .logo-text {
  color: white;
}
.footer-brand .logo img {
  border: 2px solid rgba(255,255,255,0.1);
}
.text-secondary-color {
  color: #9CA3AF;
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-links-group h4 {
  color: white;
  font-size: 1.1rem;
  margin-bottom: 20px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.footer-links-group a {
  display: block;
  color: #9CA3AF;
  margin-bottom: 12px;
  font-size: 0.95rem;
}
.footer-links-group a:hover {
  color: var(--primary-color);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #6B7280;
  font-size: 0.9rem;
}

@media (max-width: 992px) {
  .cta-title {
    font-size: 2.8rem;
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 640px) {
  .cta-title {
    font-size: 2.2rem;
  }
  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-brand .logo {
    justify-content: center;
  }
}