/* Sugar Bubble Landing Page Styles */

/* ============================================
   DESIGN SYSTEM - CSS CUSTOM PROPERTIES
   ============================================ */

:root {
  /* Candy-Themed Color Palette */
  --color-primary: #FF1B8D;
  --color-primary-light: #FF5FA8;
  --color-secondary: #9D4EDD;
  --color-secondary-light: #C77DFF;
  --color-accent: #3BCEDF;
  --color-accent-light: #5DFDFF;
  --color-yellow: #FFD60A;
  --color-orange: #FF6D00;

  /* Neutrals */
  --color-white: #FFFFFF;
  --color-off-white: #FFF8F8;
  --color-light-gray: #F4F4F9;
  --color-gray: #9CA3AF;
  --color-dark: #1F2937;
  --color-darker: #111827;

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #FF1B8D 0%, #9D4EDD 50%, #3BCEDF 100%);
  --gradient-candy: linear-gradient(120deg, #FF5FA8 0%, #C77DFF 100%);
  --gradient-blue: linear-gradient(120deg, #3BCEDF 0%, #5DFDFF 100%);
  --gradient-purple: linear-gradient(120deg, #9D4EDD 0%, #C77DFF 100%);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  --shadow-glow: 0 0 32px rgba(255, 27, 141, 0.3);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  line-height: 1.6;
  background: var(--color-off-white);
  overflow-x: hidden;
}

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

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

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-darker);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-dark);
}

p {
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
  color: var(--color-dark);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-2xl) 0;
}

.text-center {
  text-align: center;
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   HEADER
   ============================================ */

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-sm) 0;
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  background: var(--gradient-candy);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
}

.nav {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-link {
  color: var(--color-dark);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-candy);
  transition: width var(--transition-fast);
}

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

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

/* Hamburger Menu Button */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
  transition: transform var(--transition-fast);
}

.hamburger:hover {
  transform: scale(1.1);
}

.hamburger span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}


/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
  text-align: center;
}

.btn-primary {
  background: var(--gradient-candy);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-primary:active {
  transform: translateY(0) scale(1);
}

.app-badge {
  height: 50px;
  transition: transform var(--transition-normal);
  cursor: pointer;
}

.app-badge:hover {
  transform: translateY(-4px) scale(1.05);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  background: var(--gradient-hero);
  padding: var(--spacing-2xl) 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0) translateX(0);
  }

  50% {
    transform: translateY(-20px) translateX(10px);
  }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text {
  color: var(--color-white);
}

.hero-text h1 {
  color: var(--color-white);
  background: none;
  -webkit-text-fill-color: var(--color-white);
  margin-bottom: var(--spacing-md);
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.hero-text .subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-off-white);
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  margin-top: var(--spacing-md);
}

.hero-image {
  position: relative;
  animation: float-gentle 4s ease-in-out infinite;
}

@keyframes float-gentle {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-15px);
  }
}

.hero-image img {
  border-radius: 36px;
  box-shadow: var(--shadow-lg);
  filter: drop-shadow(0 10px 40px rgba(0, 0, 0, 0.3));
}

/* ============================================
   HOW IT WORKS SECTION
   ============================================ */

.how-it-works {
  background: var(--color-white);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

.section-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
  font-size: 1.125rem;
  color: var(--color-gray);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.step-card {
  background: var(--color-light-gray);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.step-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-candy);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.step-card:hover::before {
  transform: scaleX(1);
}

.step-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  background: var(--color-white);
}

.step-icon {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--spacing-md);
  border-radius: var(--radius-md);
  transition: transform var(--transition-normal);
}

.step-card:hover .step-icon {
  transform: scale(1.1) rotate(5deg);
}

.step-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.step-card p {
  color: var(--color-gray);
  font-size: 1rem;
}

/* ============================================
   WHY LOVE IT SECTION
   ============================================ */

.why-love-it {
  background: linear-gradient(180deg, var(--color-white) 0%, var(--color-light-gray) 100%);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.comparison-column {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.comparison-column:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.column-header {
  text-align: center;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-light-gray);
}

.column-header h3 {
  font-size: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.kids-column .column-header h3 {
  color: var(--color-primary);
}

.parents-column .column-header h3 {
  color: var(--color-secondary);
}

.feature-item {
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.feature-item:hover {
  background: var(--color-light-gray);
}

.feature-item h4 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.kids-column .feature-item h4 {
  color: var(--color-primary);
}

.parents-column .feature-item h4 {
  color: var(--color-secondary);
}

.feature-item p {
  color: var(--color-gray);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta-section {
  background: var(--gradient-hero);
  color: var(--color-white);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 10s ease-in-out infinite;
}

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

.cta-section h2 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.cta-section p {
  font-size: 1.25rem;
  color: var(--color-off-white);
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  align-items: center;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  background: var(--color-darker);
  color: var(--color-gray);
  padding: var(--spacing-lg) 0;
}

.footer-content {
  text-align: center;
}

.footer-links {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
}

.footer-link {
  color: var(--color-gray);
  transition: color var(--transition-fast);
  font-size: 0.95rem;
}

.footer-link:hover {
  color: var(--color-white);
}

.footer-divider {
  border: none;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: var(--spacing-sm) 0;
}

.copyright {
  font-size: 0.875rem;
  color: var(--color-gray);
}

.category-note {
  font-size: 0.875rem;
  color: var(--color-gray);
  margin-top: var(--spacing-xs);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 968px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-buttons {
    justify-content: center;
    flex-direction: column;
  }

  .comparison-grid {
    grid-template-columns: 1fr;
  }

  /* Mobile Navigation */
  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 280px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 5rem 2rem 2rem;
    gap: var(--spacing-md);
    box-shadow: -4px 0 16px rgba(0, 0, 0, 0.1);
    transition: right var(--transition-normal);
    z-index: 1000;
  }

  .nav.active {
    right: 0;
  }

  .nav-link {
    font-size: 1.125rem;
    padding: var(--spacing-sm) 0;
  }

  .nav .btn {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 640px) {
  .section {
    padding: var(--spacing-xl) 0;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .footer-links {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .hero-image img {
    border-radius: 22px;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }
}