/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* OnePrep-Inspired Vibrant Colors */
  --primary: #4A90E2;
  --primary-dark: #357ABD;
  --primary-light: #6BA3E8;
  --secondary: #FFCC80;
  --accent-pink: #FF9F9F;
  --accent-green: #9FE8A3;
  --accent-purple: #B8A3FF;
  --accent-orange: #FFB87A;
  --accent-blue: #9FD4FF;
}

/* Dark Theme (Default) - Inverse of Light */
:root,
[data-theme="dark"] {
  --text-primary: #FFFFFF;
  --text-secondary: #FFFFFF;
  --text-light: #FFFFFF;
  --bg-primary: #0D0D0D;
  --bg-secondary: #1A1A1A;
  --bg-tertiary: #252525;
  --bg-gradient: linear-gradient(135deg, #0D0D0D 0%, #1A1A1A 50%, #0F1419 100%);
  --card-bg: #1A1A1A;
  --border-color: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.6);
}

/* Light Theme - Modern & Vibrant */
[data-theme="light"] {
  --text-primary: #1B1B1B;
  --text-secondary: #4A4A4A;
  --text-light: #6B6B6B;
  --bg-primary: #FFFFFF;
  --bg-secondary: #FAFAFA;
  --bg-tertiary: #F5F5F5;
  --bg-gradient: linear-gradient(135deg, #FAF8F5 0%, #FFFFFF 50%, #F0F8FF 100%);
  --card-bg: #FFFFFF;
  --border-color: rgba(0, 0, 0, 0.1);
  --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 24px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.18);
}

/* 2016 Theme (Instagram-inspired) */
[data-theme="y2016"] {
  --text-primary: #4A4A4A;
  --text-secondary: #6B6B6B;
  --text-light: #888888;
  --bg-primary: #FAF8F5;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F5F3F0;
  --bg-gradient: linear-gradient(135deg, #FAF8F5 0%, #FFFFFF 50%, #FAF8F5 100%);
  --card-bg: #FFFFFF;
  --border-color: rgba(64, 93, 230, 0.2);
  --primary: #405DE6;
  --primary-dark: #2E4BC4;
  --primary-light: #5B7AED;
}

/* Shared Variables */
:root {
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;
  
  /* Typography - Bold & Playful */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;
  --font-size-3xl: 48px;
  --font-size-4xl: 64px;
  --font-size-5xl: 80px;
  
  /* Border Radius - More Organic */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-blob: 60% 40% 30% 70% / 60% 30% 70% 40%;
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
  font-weight: 300;
}

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

.hero .container {
  padding-left: 0;
  padding-right: 0;
}

.navbar .container {
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

/* Navigation - Cleaner */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  background: var(--bg-primary);
  backdrop-filter: none;
  border-bottom: none;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.navbar .container {
  position: relative;
}

.navbar::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0.5px;
  background: var(--text-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.navbar.scrolled::after {
  opacity: 1;
}

[data-theme="light"] .navbar {
  background: var(--bg-primary);
}

[data-theme="y2016"] .navbar {
  background: var(--bg-primary);
}

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

.logo {
  display: flex;
  align-items: center;
  position: relative;
  text-decoration: none;
  color: var(--text-primary);
  font-size: var(--font-size-xl);
  transition: var(--transition);
  margin-left: -96px;
  overflow: visible;
  z-index: 1001;
}

.logo:hover {
  /* Removed zoom effect */
}

.logo-img {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  object-fit: contain;
  display: block;
}

.logo-hat {
  position: absolute;
  z-index: 10;
  cursor: pointer;
  opacity: 1;
  transition: transform 0.3s ease;
  image-rendering: auto;
  -ms-interpolation-mode: bicubic;
  transform: translateZ(0) scale(1);
  will-change: transform;
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  filter: none;
  object-fit: contain;
  max-width: none;
  max-height: none;
}

.logo-hat.initial-load {
  /* Animation removed - logo appears immediately */
  opacity: 1;
}

.logo-hat:hover {
  /* Removed zoom effect */
}

/* Camo Cap Hat Positioning - Default */
.logo-hat {
  display: none; /* Hide logo hat to prevent it appearing above main text */
}

@keyframes hatPutOn {
  0% {
    opacity: 0;
    transform: translateY(-25px) translateX(-15px) rotate(-12deg) scale(0.35) translateZ(0);
  }
  50% {
    opacity: 1;
    transform: translateY(3px) translateX(0) rotate(3deg) scale(0.45) translateZ(0);
  }
  100% {
    opacity: 1;
    transform: translateY(0) translateX(0) rotate(0deg) scale(0.5) translateZ(0);
  }
}

@keyframes hatPutOnCamocap {
  0% {
    opacity: 0;
    transform: translateY(-25px) translateX(-15px) rotate(-20deg) scale(0.35);
  }
  50% {
    opacity: 1;
    transform: translateY(3px) translateX(0) rotate(-5deg) scale(0.54);
  }
  100% {
    opacity: 1;
    transform: translateY(0) translateX(0) rotate(-8deg) scale(0.5);
  }
}


@keyframes hatFloatIn {
  0% {
    opacity: 0;
    transform: translateY(-30px) translateX(-20px) rotate(-15deg) scale(0.5) translateZ(0);
  }
  60% {
    opacity: 1;
    transform: translateY(2px) translateX(0) rotate(2deg) scale(0.5) translateZ(0);
  }
  100% {
    opacity: 1;
    transform: translateY(0) translateX(0) rotate(0deg) scale(0.5) translateZ(0);
  }
}

@keyframes hatFloatInCamocap {
  0% {
    opacity: 0;
    transform: translateY(-30px) translateX(-20px) rotate(-23deg) scale(0.5) translateZ(0);
  }
  60% {
    opacity: 1;
    transform: translateY(2px) translateX(0) rotate(-8deg) scale(0.5) translateZ(0);
  }
  100% {
    opacity: 1;
    transform: translateY(0) translateX(0) rotate(-8deg) scale(0.5) translateZ(0);
  }
}


.logo-text {
  font-size: 32px;
  letter-spacing: -0.5px;
  position: relative;
  z-index: 1;
  padding-left: 4px;
  font-weight: 300;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-left: auto;
  margin-right: -120px;
}

.nav-links a,
.nav-app-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 300;
  font-size: var(--font-size-base);
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a::after {
  display: none;
}

.nav-links a:hover::after {
  display: none;
}

.auth-toggle {
  display: flex;
  align-items: center;
  margin-left: var(--spacing-xs);
}

.auth-toggle-container {
  background: white;
  border-radius: 20px;
  padding: 4px;
  display: flex;
  align-items: center;
  position: relative;
  cursor: pointer;
  min-width: 160px;
  height: 36px;
  border: none;
  outline: none;
}

[data-theme="dark"] .auth-toggle-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

.auth-toggle-tab {
  position: absolute;
  left: 4px;
  top: 4px;
  width: calc(50% - 4px);
  height: calc(100% - 8px);
  background: black;
  border-radius: 16px;
  transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
}

/* Disable transition on initial load to prevent flicker */
.auth-toggle-container:not(.initialized) .auth-toggle-tab {
  transition: none;
}

[data-theme="dark"] .auth-toggle-tab {
  background: var(--text-primary);
}

.auth-toggle-container.logged-in .auth-toggle-tab {
  left: calc(50% + 2px);
}

.auth-toggle-option {
  flex: 1;
  text-align: center;
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--text-primary);
  z-index: 2;
  position: relative;
  transition: color 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.auth-toggle-option.active {
  color: white;
}

[data-theme="dark"] .auth-toggle-option {
  color: var(--text-secondary);
}

[data-theme="dark"] .auth-toggle-option.active {
  color: black;
}

.auth-toggle-container:hover {
  opacity: 0.9;
}

/* Auth Modal */
.auth-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  align-items: center;
  justify-content: center;
}

.auth-modal.active {
  display: flex;
}

.auth-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.auth-modal-content {
  position: relative;
  background: var(--bg-primary);
  border-radius: 24px;
  padding: var(--spacing-xl);
  max-width: 400px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  z-index: 10001;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.auth-modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: none;
  border: none;
  font-size: 32px;
  color: var(--text-secondary);
  cursor: pointer;
  line-height: 1;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
}

.auth-modal-close:hover {
  color: var(--text-primary);
}

.auth-modal-title {
  font-size: var(--font-size-2xl);
  font-weight: 300;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
  text-align: center;
}

.auth-form-container {
  width: 100%;
}

.auth-form-group {
  margin-bottom: var(--spacing-md);
}

.auth-form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.auth-form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  transition: border-color 0.2s ease;
  box-sizing: border-box;
}

.auth-form-group input:focus {
  outline: none;
  border-color: var(--primary);
}

.auth-form-group input::placeholder {
  color: var(--text-light);
}

.auth-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.auth-form #auth-submit-btn {
  width: 100%;
  margin-top: var(--spacing-md);
}

.auth-form button[type="submit"] {
  width: 100%;
  margin-top: var(--spacing-md);
}

/* Auth Page Styles */
.auth-page {
  padding: calc(var(--spacing-2xl) + 100px) 0 var(--spacing-2xl);
  min-height: calc(100vh - 100px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-page-content {
  max-width: 400px;
  width: 100%;
  margin: 0 auto;
}

.auth-page-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.auth-page-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.auth-page-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: var(--font-size-base);
}

.auth-page-footer a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 700; /* Bold */
}

/* Dark theme: white text */
[data-theme="dark"] .auth-page-footer a {
  color: white;
}

/* Light theme: black text */
[data-theme="light"] .auth-page-footer a {
  color: black;
}

.auth-page-footer a:hover {
  text-decoration: none;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
  border-radius: 2px;
}

/* Buttons - More Playful */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border-radius: 16px;
  text-decoration: none;
  font-weight: 500;
  text-align: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  cursor: pointer;
  font-size: var(--font-size-base);
  letter-spacing: -0.2px;
  position: relative;
  overflow: hidden;
  transform: translateY(0);
}

.btn-primary {
  background: white;
  color: black;
  box-shadow: 0 4px 14px 0 rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
  /* No hover animation */
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 10px 0 rgba(74, 144, 226, 0.3);
}

.btn-primary:focus {
  outline: 2px solid black;
  outline-offset: 2px;
}

[data-theme="dark"] .btn-primary {
  background: white;
  color: black;
  box-shadow: 0 4px 14px 0 rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .btn-primary:hover {
  /* No hover animation */
}

[data-theme="light"] .btn-primary {
  background: white;
  color: black;
  box-shadow: 0 4px 14px 0 rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .btn-primary:hover {
  /* No hover animation */
}

.btn-secondary {
  background: white;
  color: black;
  border: 2px solid white;
  position: relative;
  overflow: hidden;
}

.btn-secondary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  transition: left 0.3s ease;
  z-index: -1;
}

.btn-secondary:hover {
  /* No hover animation */
}

.btn-secondary:hover::before {
  /* No hover animation */
}

.btn-secondary:active {
  transform: translateY(0) scale(0.98);
}

.btn-secondary:focus {
  outline: 2px solid black;
  outline-offset: 2px;
}

.btn-large {
  padding: 20px 40px;
  font-size: var(--font-size-lg);
  border-radius: 20px;
  font-weight: 500;
  min-width: 180px;
  width: auto;
}

.btn-large:hover {
  /* No hover animation */
}

.btn-large:active {
  transform: translateY(-1px) scale(0.97);
}

.btn:disabled,
.btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  pointer-events: none;
}

.btn:disabled:hover,
.btn[disabled]:hover {
  transform: none;
  box-shadow: inherit;
}

/* Hero Section - Bold & Playful */
.hero {
  padding: var(--spacing-2xl) 0;
  padding-top: calc(var(--spacing-2xl) + 100px);
  margin-top: 80px;
  background: var(--bg-primary);
  position: relative;
  overflow: visible;
  transition: background 0.3s ease;
}

.floating-hats {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* Hats positioned relative to text - some above, some below */
/* Hats on edges can be above text */
.hat-1,
.hat-6,
.hat-9 {
  z-index: 3; /* Above text */
}

/* Hat-4 is centered (50%) and at 30vh - likely intersects with subtitle "Master A1" */
/* Make it above subtitle but we need to check which hats intersect which text */
.hat-4 {
  z-index: 4; /* Above subtitle text */
}

/* Hat-3 is at 34% and 25vh - might also intersect subtitle */
.hat-3 {
  z-index: 4; /* Above subtitle text */
}

/* Z-index is set dynamically based on hat position relative to text */
/* Opacity is also set dynamically by JavaScript based on position */

.floating-hat {
  position: absolute;
  width: 180px;
  height: 180px;
  opacity: 0;
  image-rendering: auto;
  /* Animation will set position and transform */
  will-change: transform, opacity, left;
}

/* Opacity is set dynamically by JavaScript based on hat position relative to text */
/* All hats start with opacity 0, animation sets it to 1, then JS adjusts based on position */

.hat-1 {
  animation: hatFlyUp1 0.9s linear forwards;
  animation-delay: 0.1s;
  /* Ensure animation runs */
  animation-fill-mode: both;
}

.hat-2 {
  animation: hatFlyUp2 0.9s linear forwards;
  animation-delay: 0.2s;
  animation-fill-mode: both;
}

.hat-3 {
  animation: hatFlyUp3 0.9s linear forwards;
  animation-delay: 0.3s;
  animation-fill-mode: both;
}

.hat-4 {
  animation: hatFlyUp4 0.9s linear forwards;
  animation-delay: 0.4s;
  animation-fill-mode: both;
}

.hat-5 {
  animation: hatFlyUp5 0.9s linear forwards;
  animation-delay: 0.5s;
  animation-fill-mode: both;
}

.hat-6 {
  animation: hatFlyUp6 0.9s linear forwards;
  animation-delay: 0.6s;
  animation-fill-mode: both;
}

.hat-7 {
  animation: hatFlyUp7 0.9s linear forwards;
  animation-delay: 0.7s;
  animation-fill-mode: both;
}

.hat-8 {
  animation: hatFlyUp8 0.9s linear forwards;
  animation-delay: 0.8s;
  animation-fill-mode: both;
}

.hat-9 {
  animation: hatFlyUp9 0.9s linear forwards;
  animation-delay: 0.9s;
  animation-fill-mode: both;
}

@keyframes hatFlyUp1 {
  0% {
    opacity: 0;
    left: var(--random-left, 2%);
    transform: translateY(100vh) rotate(0deg) scale(0.3);
  }
  15% {
    opacity: 0.5;
    left: var(--random-left, 2%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 5vh)) * 0.3)) rotate(var(--rotation-25, 151.25deg)) scale(1.2);
  }
  30% {
    opacity: 0.9;
    left: var(--random-left, 2%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 5vh)) * 0.5)) rotate(var(--rotation-40, 453.75deg)) scale(1.5);
  }
  50% {
    opacity: 1;
    left: var(--random-left, 2%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 5vh)) * 0.75)) rotate(var(--rotation-50, 302.5deg)) scale(1.5);
  }
  75% {
    opacity: 1;
    left: var(--random-left, 2%);
    transform: translateY(var(--random-top, 5vh)) rotate(var(--random-rotation, 245deg)) scale(1.5);
  }
  100% {
    opacity: 1;
    left: var(--random-left, 2%);
    transform: translateY(var(--random-top, 5vh)) rotate(var(--random-rotation, 245deg)) scale(1.5);
  }
}

@keyframes hatFlyUp2 {
  0% {
    opacity: 0;
    left: var(--random-left, 18%);
    transform: translateY(100vh) rotate(0deg) scale(0.3);
  }
  15% {
    opacity: 0.3;
    left: var(--random-left, 18%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 15vh)) * 0.3)) rotate(var(--rotation-25, -121.25deg)) scale(1.2);
  }
  30% {
    opacity: 0.5;
    left: var(--random-left, 18%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 15vh)) * 0.5)) rotate(var(--rotation-40, -363.75deg)) scale(1.5);
  }
  50% {
    opacity: 1;
    left: var(--random-left, 18%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 15vh)) * 0.75)) rotate(var(--rotation-50, -242.5deg)) scale(1.5);
  }
  75% {
    opacity: 1;
    left: var(--random-left, 18%);
    transform: translateY(var(--random-top, 15vh)) rotate(var(--random-rotation, -125deg)) scale(1.5);
  }
  100% {
    opacity: 1;
    left: var(--random-left, 18%);
    transform: translateY(var(--random-top, 15vh)) rotate(var(--random-rotation, -125deg)) scale(1.5);
  }
}

@keyframes hatFlyUp3 {
  0% {
    opacity: 0;
    left: var(--random-left, 34%);
    transform: translateY(100vh) rotate(0deg) scale(0.3);
  }
  15% {
    opacity: 0.5;
    left: var(--random-left, 34%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 25vh)) * 0.3)) rotate(var(--rotation-25, 170deg)) scale(1.2);
  }
  30% {
    opacity: 0.9;
    left: var(--random-left, 34%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 25vh)) * 0.5)) rotate(var(--rotation-40, 510deg)) scale(1.5);
  }
  50% {
    opacity: 1;
    left: var(--random-left, 34%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 25vh)) * 0.75)) rotate(var(--rotation-50, 340deg)) scale(1.5);
  }
  75% {
    opacity: 1;
    left: var(--random-left, 34%);
    transform: translateY(var(--random-top, 25vh)) rotate(var(--random-rotation, 320deg)) scale(1.5);
  }
  100% {
    opacity: 1;
    left: var(--random-left, 34%);
    transform: translateY(var(--random-top, 25vh)) rotate(var(--random-rotation, 320deg)) scale(1.5);
  }
}

@keyframes hatFlyUp4 {
  0% {
    opacity: 0;
    left: var(--random-left, 50%);
    transform: translateY(100vh) rotate(0deg) scale(0.3);
  }
  15% {
    opacity: 0.8;
    left: var(--random-left, 50%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 30vh)) * 0.3)) rotate(var(--rotation-25, -101.25deg)) scale(1.4);
  }
  30% {
    opacity: 0.9;
    left: var(--random-left, 50%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 30vh)) * 0.5)) rotate(var(--rotation-40, -303.75deg)) scale(1.5);
  }
  50% {
    opacity: 1;
    left: var(--random-left, 50%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 30vh)) * 0.75)) rotate(var(--rotation-50, -202.5deg)) scale(1.5);
  }
  75% {
    opacity: 1;
    left: var(--random-left, 50%);
    transform: translateY(var(--random-top, 30vh)) rotate(var(--random-rotation, -45deg)) scale(1.5);
  }
  100% {
    opacity: 1;
    left: var(--random-left, 50%);
    transform: translateY(var(--random-top, 30vh)) rotate(var(--random-rotation, -45deg)) scale(1.5);
  }
}

@keyframes hatFlyUp5 {
  0% {
    opacity: 0;
    left: var(--random-left, 66%);
    transform: translateY(100vh) rotate(0deg) scale(0.3);
  }
  15% {
    opacity: 0.3;
    left: var(--random-left, 66%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 35vh)) * 0.3)) rotate(var(--rotation-25, 108.75deg)) scale(1.2);
  }
  30% {
    opacity: 0.5;
    left: var(--random-left, 66%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 35vh)) * 0.5)) rotate(var(--rotation-40, 326.25deg)) scale(1.5);
  }
  50% {
    opacity: 1;
    left: var(--random-left, 66%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 35vh)) * 0.75)) rotate(var(--rotation-50, 217.5deg)) scale(1.5);
  }
  75% {
    opacity: 1;
    left: var(--random-left, 66%);
    transform: translateY(var(--random-top, 35vh)) rotate(var(--random-rotation, 75deg)) scale(1.5);
  }
  100% {
    opacity: 1;
    left: var(--random-left, 66%);
    transform: translateY(var(--random-top, 35vh)) rotate(var(--random-rotation, 75deg)) scale(1.5);
  }
}

@keyframes hatFlyUp6 {
  0% {
    opacity: 0;
    left: var(--random-left, 82%);
    transform: translateY(100vh) rotate(0deg) scale(0.3);
  }
  15% {
    opacity: 0.5;
    left: var(--random-left, 82%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 20vh)) * 0.3)) rotate(var(--rotation-25, -162.5deg)) scale(1.2);
  }
  30% {
    opacity: 0.9;
    left: var(--random-left, 82%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 20vh)) * 0.5)) rotate(var(--rotation-40, -487.5deg)) scale(1.5);
  }
  50% {
    opacity: 1;
    left: var(--random-left, 82%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 20vh)) * 0.75)) rotate(var(--rotation-50, -325deg)) scale(1.5);
  }
  75% {
    opacity: 1;
    left: var(--random-left, 82%);
    transform: translateY(var(--random-top, 20vh)) rotate(var(--random-rotation, -290deg)) scale(1.5);
  }
  100% {
    opacity: 1;
    left: var(--random-left, 82%);
    transform: translateY(var(--random-top, 20vh)) rotate(var(--random-rotation, -290deg)) scale(1.5);
  }
}

@keyframes hatFlyUp7 {
  0% {
    opacity: 0;
    left: var(--random-left, 10%);
    transform: translateY(100vh) rotate(0deg) scale(0.3);
  }
  15% {
    opacity: 0.3;
    left: var(--random-left, 10%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 45vh)) * 0.3)) rotate(var(--rotation-25, 128.75deg)) scale(1.2);
  }
  30% {
    opacity: 0.5;
    left: var(--random-left, 10%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 45vh)) * 0.5)) rotate(var(--rotation-40, 386.25deg)) scale(1.5);
  }
  50% {
    opacity: 1;
    left: var(--random-left, 10%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 45vh)) * 0.75)) rotate(var(--rotation-50, 257.5deg)) scale(1.5);
  }
  75% {
    opacity: 1;
    left: var(--random-left, 10%);
    transform: translateY(var(--random-top, 45vh)) rotate(var(--random-rotation, 155deg)) scale(1.5);
  }
  100% {
    opacity: 1;
    left: var(--random-left, 10%);
    transform: translateY(var(--random-top, 45vh)) rotate(var(--random-rotation, 155deg)) scale(1.5);
  }
}

@keyframes hatFlyUp8 {
  0% {
    opacity: 0;
    left: var(--random-left, 26%);
    transform: translateY(100vh) rotate(0deg) scale(0.3);
  }
  15% {
    opacity: 0.3;
    left: var(--random-left, 26%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 50vh)) * 0.3)) rotate(var(--rotation-25, -140deg)) scale(1.2);
  }
  30% {
    opacity: 0.5;
    left: var(--random-left, 26%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 50vh)) * 0.5)) rotate(var(--rotation-40, -420deg)) scale(1.5);
  }
  50% {
    opacity: 1;
    left: var(--random-left, 26%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 50vh)) * 0.75)) rotate(var(--rotation-50, -280deg)) scale(1.5);
  }
  75% {
    opacity: 1;
    left: var(--random-left, 26%);
    transform: translateY(var(--random-top, 50vh)) rotate(var(--random-rotation, -200deg)) scale(1.5);
  }
  100% {
    opacity: 1;
    left: var(--random-left, 26%);
    transform: translateY(var(--random-top, 50vh)) rotate(var(--random-rotation, -200deg)) scale(1.5);
  }
}

@keyframes hatFlyUp9 {
  0% {
    opacity: 0;
    left: var(--random-left, 90%);
    transform: translateY(100vh) rotate(0deg) scale(0.3);
  }
  15% {
    opacity: 0.5;
    left: var(--random-left, 90%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 55vh)) * 0.3)) rotate(var(--rotation-25, 112.5deg)) scale(1.2);
  }
  30% {
    opacity: 0.9;
    left: var(--random-left, 90%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 55vh)) * 0.5)) rotate(var(--rotation-40, 337.5deg)) scale(1.5);
  }
  50% {
    opacity: 1;
    left: var(--random-left, 90%);
    transform: translateY(calc(100vh - (100vh - var(--random-top, 55vh)) * 0.75)) rotate(var(--rotation-50, 225deg)) scale(1.5);
  }
  75% {
    opacity: 1;
    left: var(--random-left, 90%);
    transform: translateY(var(--random-top, 55vh)) rotate(var(--random-rotation, 90deg)) scale(1.5);
  }
  100% {
    opacity: 1;
    left: var(--random-left, 90%);
    transform: translateY(var(--random-top, 55vh)) rotate(var(--random-rotation, 90deg)) scale(1.5);
  }
}

/* Remove blue gradient decoration from hero section */
.hero::before {
  display: none;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 2;
  max-width: 100%;
  margin: 0;
  width: 100%;
  padding: 0;
}

.hero-text {
  text-align: center;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.hero-title {
  font-size: 340px;
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  letter-spacing: -4px;
  text-align: center;
  position: relative;
  text-shadow: 
    0 0 20px rgba(0, 0, 0, 0.5),
    0 0 40px rgba(0, 0, 0, 0.3);
  mix-blend-mode: screen;
}

[data-theme="light"] .hero-title {
  text-shadow: 
    0 0 10px rgba(0, 0, 0, 0.1),
    0 0 20px rgba(0, 0, 0, 0.05);
}

.hero-title::before {
  content: "You.";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  font-size: inherit;
  font-weight: inherit;
  font-style: normal;
  letter-spacing: inherit;
  line-height: inherit;
  text-align: inherit;
  color: var(--bg-primary);
  opacity: 0.5;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: -1;
}

.hero-title::after {
  content: "En español.";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  font-size: inherit;
  font-weight: inherit;
  font-style: italic;
  letter-spacing: inherit;
  line-height: 1.1;
  text-align: inherit;
  color: var(--bg-primary);
  opacity: 0.5;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: -1;
  transform: translateY(calc(1em * 1.1));
}

.hero-title em {
  font-weight: 300;
  font-style: italic;
}

.hero-spacing {
  display: inline-block;
  width: 0.3em;
}

.hero-title em {
  font-weight: 300;
  font-style: italic;
}

.hero-spacing {
  display: inline-block;
  width: 0.3em;
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  font-weight: 300;
  letter-spacing: -0.5px;
  text-align: center;
  position: relative;
  z-index: 3;
  text-shadow: 
    0 0 15px rgba(0, 0, 0, 0.4),
    0 0 30px rgba(0, 0, 0, 0.2);
  mix-blend-mode: screen;
}

[data-theme="light"] .hero-subtitle {
  color: black;
  text-shadow: 
    0 0 8px rgba(0, 0, 0, 0.1),
    0 0 15px rgba(0, 0, 0, 0.05);
  mix-blend-mode: normal;
}

.hero-subtitle::before {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  font-size: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  line-height: inherit;
  text-align: inherit;
  color: var(--bg-primary);
  opacity: 0.4;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: -1;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--text-light);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
  max-width: 100%;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  text-shadow: 
    0 0 10px rgba(0, 0, 0, 0.3),
    0 0 20px rgba(0, 0, 0, 0.2);
  mix-blend-mode: screen;
}

.hero-description::before {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  font-size: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  line-height: inherit;
  text-align: inherit;
  color: var(--bg-primary);
  opacity: 0.4;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: -1;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin: 0 auto;
  padding: 0;
  max-width: 100%;
}

.hero-note {
  color: var(--text-light);
  font-size: var(--font-size-sm);
  font-weight: 300;
  text-align: center;
  margin-top: var(--spacing-lg);
}

.hero-image {
  display: none;
}

.hero-placeholder {
  display: none;
}

/* Section Styles - Bolder */
section {
  padding: var(--spacing-2xl) 0;
  position: relative;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 300;
  text-align: center;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  letter-spacing: -1.5px;
}

.section-subtitle {
  font-size: var(--font-size-xl);
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 300;
}

/* Features Section - Playful Cards */
/* Adaptive Learning Section */
.adaptive-section {
  padding: var(--spacing-2xl) 0;
  background: var(--bg-primary);
}

.feedback-section {
  padding: calc(var(--spacing-2xl) * 1.5) 0;
}

.adaptive-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.adaptive-content.text-right {
  grid-template-columns: 1fr 1fr;
}

.adaptive-content.text-right .adaptive-text {
  order: 2;
  text-align: right;
}

.adaptive-content.text-right .adaptive-header {
  justify-content: flex-end;
}

.adaptive-content.text-right .adaptive-description {
  text-align: right;
  margin-left: auto;
  margin-right: 0;
  max-width: none;
}

.adaptive-content.text-right .adaptive-visual {
  order: 1;
}

.adaptive-content.center {
  grid-template-columns: 1fr;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

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

.adaptive-content.center .adaptive-header {
  justify-content: center;
}

.adaptive-content.center .adaptive-description {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
  max-width: 700px;
}

.adaptive-text {
  text-align: left;
}

.adaptive-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.adaptive-icon {
  font-size: 24px;
}

.adaptive-label {
  color: var(--primary);
  font-weight: 600;
  font-size: var(--font-size-base);
}

.adaptive-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.adaptive-description {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  max-width: 500px;
}

.adaptive-visual {
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Community Avatars */
.community-avatars {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 400px;
}

.community-avatar {
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background-size: cover;
  background-position: center;
  border: 3px solid var(--card-bg);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: transform 0.3s ease, z-index 0.3s ease, box-shadow 0.3s ease;
  transform: translate(-50%, -50%);
  transform-origin: center;
}

.community-avatar:hover {
  transform: translate(-50%, -50%) scale(1.08);
  z-index: 1000;
  box-shadow: var(--shadow-xl);
}

/* Winner Profile Picture */
#winner-profile-picture img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary-color);
  box-shadow: var(--shadow-sm);
}

#winner-profile-picture span {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

/* Story Challenge Styles */
.challenge-examples {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  width: 100%;
  max-width: 900px;
}

.challenge-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.challenge-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.challenge-icon {
  font-size: 32px;
  margin-bottom: var(--spacing-xs);
}

.challenge-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.challenge-description {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Reading Demo Styles */
.reading-demo-container {
  width: 100%;
  max-width: 470px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.reading-demo {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.reading-card {
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 24px;
  padding: var(--spacing-xl);
  width: 100%;
  max-width: 420px;
  max-height: 450px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.reading-content {
  font-size: var(--font-size-xl);
  line-height: 1.9;
  color: var(--text-primary);
  overflow-y: auto;
  padding-right: var(--spacing-sm);
  text-align: left;
  flex: 1;
}

.reading-content::-webkit-scrollbar {
  width: 8px;
}

.reading-content::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

.reading-content::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
}

.reading-content::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}

@media (max-width: 768px) {
  .reading-card {
    max-width: 360px;
    max-height: 400px;
    padding: var(--spacing-lg);
  }
  
  .reading-content {
    font-size: var(--font-size-lg);
  }
}

@media (max-width: 480px) {
  .reading-card {
    max-width: 330px;
    max-height: 360px;
    padding: var(--spacing-md);
  }
  
  .reading-content {
    font-size: var(--font-size-base);
  }
}

/* Flashcard Demo Styles */
.flashcard-demo-container {
  width: 100%;
  max-width: 470px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.flashcard-deck {
  position: relative;
  width: 100%;
  max-width: 420px;
  height: 450px;
  perspective: 1000px;
  margin-top: 20px;
}


.flashcard-item {
  position: absolute;
  width: 100%;
  height: 100%;
  cursor: grab;
  user-select: none;
  transition: transform 0.3s ease-out, opacity 0.3s ease-out, z-index 0.3s ease-out;
  transform-origin: center;
  will-change: transform;
  border-radius: 20px;
  overflow: hidden;
}

.flashcard-item:nth-child(1) {
  z-index: 10;
  transform: translateY(0) scale(1) rotate(0deg);
  opacity: 1;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.flashcard-item:nth-child(2) {
  z-index: 9;
  transform: translateY(12px) translateX(4px) scale(0.96) rotate(2deg);
  opacity: 0.9;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
}

.flashcard-item:nth-child(3) {
  z-index: 8;
  transform: translateY(24px) translateX(-3px) scale(0.92) rotate(-2deg);
  opacity: 0.8;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.flashcard-item:nth-child(4) {
  z-index: 7;
  transform: translateY(36px) translateX(2px) scale(0.88) rotate(1deg);
  opacity: 0.7;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.flashcard-item:nth-child(5) {
  z-index: 6;
  transform: translateY(48px) translateX(-1px) scale(0.84) rotate(-1deg);
  opacity: 0.6;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.flashcard-item.dragging {
  cursor: grabbing;
  transition: none;
  z-index: 20;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.flashcard-item.swiping-left {
  transform: translateX(-100%) rotate(-10deg);
  opacity: 0;
}

.flashcard-item.swiping-right {
  transform: translateX(100%) rotate(10deg);
  opacity: 0;
}

.flashcard {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.6s ease-in-out;
  cursor: pointer;
}

.flashcard.flipped {
  transform: rotateY(180deg);
}

.flashcard.flipped .flashcard-front {
  pointer-events: none;
}

.flashcard-front,
.flashcard-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
}

.flashcard-front {
  border-radius: 20px;
  overflow: hidden;
}

.flashcard-back {
  border-radius: 20px;
  overflow: hidden;
}

.flashcard-back {
  transform: rotateY(180deg);
}

.flashcard-image-container {
  width: 100%;
  height: 60%;
  overflow: hidden;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px 20px 0 0;
}

.flashcard-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px 20px 0 0;
  user-select: none;
  -webkit-user-drag: none;
  -khtml-user-drag: none;
  -moz-user-drag: none;
  -o-user-drag: none;
  user-drag: none;
  pointer-events: none;
}

.flashcard-word-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  position: relative;
}

.flashcard-word {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
}

.flashcard-audio-btn {
  background: transparent;
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 20px;
  padding: 0;
  flex-shrink: 0;
  box-shadow: none;
  outline: none;
  position: relative;
  z-index: 10;
  color: var(--text-primary);
}

.flashcard-audio-btn:hover {
  background: transparent;
  transform: scale(1.1);
  opacity: 0.8;
}

.flashcard-audio-btn:active {
  transform: scale(0.95);
  opacity: 0.6;
}

.flashcard-audio-btn:focus {
  outline: none;
  box-shadow: none;
}

.flashcard-back {
  padding: var(--spacing-xl);
  justify-content: center;
  gap: var(--spacing-lg);
}

/* Hide any audio buttons on the back of flashcards - multiple selectors for maximum coverage */
/* NEVER show pronunciation button on the back - multiple selectors for maximum coverage */
.flashcard-back .flashcard-audio-btn,
.flashcard-back button.flashcard-audio-btn,
.flashcard-back [class*="audio"],
.flashcard-back [aria-label*="pronunciation"],
.flashcard-back [aria-label*="Play pronunciation"],
.flashcard-back button[aria-label*="pronunciation"],
.flashcard-back button[aria-label*="Play"],
.flashcard-back * .flashcard-audio-btn,
.flashcard.flipped .flashcard-back .flashcard-audio-btn,
.flashcard.flipped .flashcard-back button {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
  position: absolute !important;
  left: -9999px !important;
  width: 0 !important;
  height: 0 !important;
  z-index: -9999 !important;
}

/* Pronunciation button should always be visible on the front face, even when flipped */
.flashcard-front .flashcard-audio-btn {
  opacity: 1;
  visibility: visible;
  display: flex;
}

.flashcard-translation {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--primary);
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.flashcard-example {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.flashcard-example-spanish {
  font-size: var(--font-size-lg);
  color: var(--text-primary);
  font-style: italic;
  margin: 0;
}

.flashcard-example-english {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  margin: 0;
}

/* Responsive Styles */
@media (max-width: 768px) {
  .adaptive-visual {
    height: 450px;
  }
  
  .flashcard-deck {
    max-width: 360px;
    height: 400px;
  }
  
  .flashcard-word {
    font-size: var(--font-size-2xl);
  }
  
  .flashcard-translation {
    font-size: var(--font-size-xl);
  }
}

@media (max-width: 480px) {
  .adaptive-visual {
    height: 400px;
  }
  
  .flashcard-deck {
    max-width: 330px;
    height: 360px;
  }
  
  .flashcard-word {
    font-size: var(--font-size-xl);
  }
}

.features {
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
  padding: var(--spacing-2xl) 0;
}

/* When features is combined with adaptive-section, use the same background */
.adaptive-section.features {
  background: var(--bg-primary);
}

.features-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.features-content.text-right {
  grid-template-columns: 1fr 1fr;
}

.features-content.text-right .features-text {
  order: 2;
  text-align: right;
}

.features-content.text-right .features-visual {
  order: 1;
}

.features-text {
  text-align: left;
}

.features-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.features-content.text-right .features-header {
  justify-content: flex-end;
}

.features-title-large {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.features-description-large {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  max-width: 500px;
}

.features-content.text-right .features-description-large {
  margin-left: auto;
}

.features-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Pronunciation Demo Styles */
.pronunciation-demo-container {
  width: 100%;
  max-width: 470px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.pronunciation-demo {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pronunciation-card {
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 24px;
  padding: var(--spacing-2xl);
  width: 100%;
  max-width: 420px;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pronunciation-word {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 0;
}

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

.pronunciation-play-btn,
.pronunciation-practice-btn {
  background: var(--primary);
  border: none;
  border-radius: 50%;
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 32px;
  padding: 0;
  box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
  color: white;
}

.pronunciation-play-btn:hover,
.pronunciation-practice-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(74, 144, 226, 0.4);
}

.pronunciation-play-btn:active,
.pronunciation-practice-btn:active {
  transform: scale(0.95);
}

.pronunciation-practice-btn.listening {
  background: #ff4444;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 4px 12px rgba(255, 68, 68, 0.3);
  }
  50% {
    box-shadow: 0 4px 20px rgba(255, 68, 68, 0.6);
  }
}

.pronunciation-user-text {
  width: 100%;
  text-align: center;
  margin-top: 0;
  padding: var(--spacing-xs);
  background: var(--bg-tertiary);
  border-radius: 12px;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-style: italic;
}

.pronunciation-user-text::before {
  content: 'You said: ';
  font-size: var(--font-size-sm);
  opacity: 0.7;
}

.pronunciation-feedback {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  margin-top: 0;
}

.pronunciation-waveform {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  width: 100%;
}

.waveform-bar {
  width: 8px;
  background: var(--primary);
  border-radius: 4px;
  height: 20px;
  opacity: 0.4;
  transition: height 0.3s ease, opacity 0.3s ease;
}

.waveform-bar:nth-child(1) { height: 15px; }
.waveform-bar:nth-child(2) { height: 30px; }
.waveform-bar:nth-child(3) { height: 40px; }
.waveform-bar:nth-child(4) { height: 30px; }
.waveform-bar:nth-child(5) { height: 15px; }

.pronunciation-waveform.playing .waveform-bar {
  opacity: 1;
}

.pronunciation-feedback-text {
  font-size: var(--font-size-base);
  color: var(--text-secondary);
  text-align: center;
  min-height: 24px;
  transition: color 0.3s ease;
}

.pronunciation-accuracy {
  width: 100%;
  height: 28px;
  background: var(--bg-tertiary);
  border-radius: 16px;
  overflow: visible;
  position: relative;
  margin-top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pronunciation-accuracy-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 16px;
  transition: width 0.5s ease;
  width: 0%;
  z-index: 0;
  pointer-events: none;
}

.pronunciation-accuracy-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--text-primary);
  z-index: 2;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  white-space: nowrap;
  width: 100%;
  text-align: center;
}

@keyframes waveformPulse {
  0%, 100% {
    transform: scaleY(0.5);
    opacity: 0.4;
  }
  50% {
    transform: scaleY(1.2);
    opacity: 1;
  }
}

@media (max-width: 768px) {
  .pronunciation-card {
    max-width: 300px;
    padding: var(--spacing-xl);
  }
  
  .pronunciation-word {
    font-size: var(--font-size-3xl);
  }
  
  .pronunciation-play-btn,
  .pronunciation-practice-btn {
    width: 60px;
    height: 60px;
    font-size: 28px;
  }
  
  .pronunciation-buttons {
    gap: var(--spacing-sm);
  }
}

/* Remove decorative gradient for consistent background */
.features::before {
  display: none;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.feature-card {
  background: var(--card-bg);
  padding: var(--spacing-lg);
  border-radius: var(--radius-xl);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .feature-card {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.2);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-pink), var(--accent-orange), var(--accent-green));
  transform: scaleX(0);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.08);
  border-color: var(--primary-light);
}

[data-theme="dark"] .feature-card:hover {
  border-color: var(--primary);
  box-shadow: 0 12px 28px rgba(74, 144, 226, 0.4), 0 4px 8px rgba(0, 0, 0, 0.3);
}

[data-theme="light"] .feature-card:hover {
  border-color: var(--primary-light);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15), 0 4px 8px rgba(0, 0, 0, 0.1);
}

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

.feature-icon {
  font-size: 56px;
  margin-bottom: var(--spacing-md);
  display: inline-block;
  transition: var(--transition-bounce);
}

.feature-card:hover .feature-icon {
  transform: scale(1.2) rotate(5deg);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: 300;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.feature-description {
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: var(--font-size-base);
}

/* How It Works Section */
.how-it-works {
  background: var(--bg-primary);
}

.steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 900px;
  margin: 0 auto var(--spacing-xl);
}

.step {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
  padding: var(--spacing-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  transition: var(--transition);
  border: 2px solid var(--border-color);
}

.step:hover {
  border-color: var(--primary-light);
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

[data-theme="dark"] .step:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(74, 144, 226, 0.2);
}

[data-theme="light"] .step:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
}

.step-number {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  font-weight: 300;
  box-shadow: var(--shadow-md);
  transition: var(--transition-bounce);
}

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

.step-content {
  flex: 1;
}

.step-title {
  font-size: var(--font-size-xl);
  font-weight: 300;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.step-description {
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: var(--font-size-base);
}

.cta-center {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* Community Section - Stats */
.community {
  padding: calc(var(--spacing-2xl) * 2) 0;
  color: white;
}

[data-theme="dark"] .community {
  background: linear-gradient(135deg, #1A2B3D 0%, #2D1B3D 100%);
}

[data-theme="light"] .community {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
}

[data-theme="y2016"] .community {
  background: linear-gradient(135deg, #E8F0F8 0%, #F0E8F8 100%);
  color: var(--text-primary);
}

.community .section-title {
  color: white;
}

[data-theme="y2016"] .community .section-title {
  color: var(--text-primary);
}

.community .section-subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-xl);
  font-weight: 500;
}

[data-theme="y2016"] .community .section-subtitle {
  color: var(--text-secondary);
}

.community-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.stat-card {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  text-align: center;
  border: 2px solid rgba(255, 255, 255, 0.2);
  transition: var(--transition-bounce);
}

[data-theme="light"] .stat-card,
[data-theme="y2016"] .stat-card {
  background: rgba(74, 144, 226, 0.1);
  border-color: rgba(74, 144, 226, 0.2);
  color: var(--text-primary);
}

[data-theme="light"] .stat-card .stat-number,
[data-theme="y2016"] .stat-card .stat-number {
  color: var(--text-primary);
}

[data-theme="light"] .stat-card .stat-label,
[data-theme="y2016"] .stat-card .stat-label {
  color: var(--text-secondary);
}

.stat-card:hover {
  transform: translateY(-8px) scale(1.05);
  background: rgba(255, 255, 255, 0.25);
  box-shadow: var(--shadow-xl);
}

[data-theme="dark"] .stat-card:hover {
  background: rgba(255, 255, 255, 0.25);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6);
}

[data-theme="light"] .stat-card:hover,
[data-theme="y2016"] .stat-card:hover {
  background: rgba(74, 144, 226, 0.15);
  box-shadow: var(--shadow-xl);
}

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: 300;
  margin-bottom: var(--spacing-xs);
  letter-spacing: -2px;
}

.stat-label {
  font-size: var(--font-size-lg);
  font-weight: 500;
  opacity: 0.9;
}

/* Get Started Section */
.pricing {
  background: var(--bg-primary);
}

.pricing-card {
  max-width: 700px;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--card-bg) 0%, var(--bg-secondary) 100%);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-xl);
  text-align: center;
  border: 2px solid var(--primary-light);
  position: relative;
  overflow: hidden;
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(74, 144, 226, 0.1) 0%, transparent 70%);
  animation: rotate 30s linear infinite;
}

[data-theme="dark"] .pricing-card::before {
  background: radial-gradient(circle, rgba(74, 144, 226, 0.15) 0%, transparent 70%);
}

[data-theme="light"] .pricing-card::before {
  background: radial-gradient(circle, rgba(74, 144, 226, 0.1) 0%, transparent 70%);
}

.pricing-header {
  margin-bottom: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.pricing-title {
  font-size: var(--font-size-3xl);
  font-weight: 300;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
  letter-spacing: -1px;
}

.pricing-subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  font-weight: 500;
}

.pricing-features {
  margin: var(--spacing-lg) 0;
  text-align: left;
  position: relative;
  z-index: 1;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.feature-list li {
  padding: var(--spacing-xs) 0;
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  font-weight: 500;
}

.feature-list-scattered {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  position: relative;
  padding: 0;
  margin: 0;
  align-items: start;
}

.feature-list-scattered li {
  padding: var(--spacing-xs) 0;
  color: var(--text-secondary);
  font-size: 1.35rem;
  font-weight: 500;
  transform: rotate(var(--rotation)) translate(var(--translate-x), var(--translate-y));
  position: relative;
  white-space: nowrap;
  margin-top: var(--vertical-offset);
}

.feature-list-scattered li:nth-child(1) {
  --rotation: 3.5deg;
  --translate-x: 12px;
  --translate-y: -3px;
  --vertical-offset: -15px;
}

.feature-list-scattered li:nth-child(2) {
  --rotation: -2.8deg;
  --translate-x: -8px;
  --translate-y: 5px;
  --vertical-offset: 20px;
}

.feature-list-scattered li:nth-child(3) {
  --rotation: 4.2deg;
  --translate-x: 18px;
  --translate-y: -2px;
  --vertical-offset: -10px;
}

.feature-list-scattered li:nth-child(4) {
  --rotation: -3.5deg;
  --translate-x: -5px;
  --translate-y: 4px;
  --vertical-offset: 25px;
}

.feature-list-scattered li:nth-child(5) {
  --rotation: 2.3deg;
  --translate-x: 15px;
  --translate-y: -4px;
  --vertical-offset: -20px;
}

.feature-list-scattered li:nth-child(6) {
  --rotation: -4.1deg;
  --translate-x: -10px;
  --translate-y: 3px;
  --vertical-offset: 15px;
}

.pricing-cta {
  margin-top: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.pricing-note {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-light);
  font-weight: 500;
}

/* FAQ Section - Playful */
.faq {
  background: var(--bg-secondary);
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--border-color);
  transition: var(--transition);
}

.faq-item:hover {
  /* No hover animation */
}

[data-theme="dark"] .faq-item:hover {
  /* No hover animation */
}

[data-theme="light"] .faq-item:hover {
  /* No hover animation */
}

.faq-question {
  width: 100%;
  padding: var(--spacing-md);
  background: none;
  border: none;
  text-align: left;
  font-size: var(--font-size-lg);
  font-weight: 400;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: var(--radius-md);
}

.faq-question:hover {
  color: var(--primary);
  background: rgba(74, 144, 226, 0.05);
}

[data-theme="dark"] .faq-question:hover {
  background: rgba(74, 144, 226, 0.1);
}

.faq-icon {
  font-size: var(--font-size-2xl);
  color: var(--primary);
  transition: var(--transition-bounce);
  font-weight: 300;
}

.faq-item[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item[aria-expanded="true"] .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 var(--spacing-md) var(--spacing-md);
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: var(--font-size-base);
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

/* Theme Selector */
.theme-selector {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.theme-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: left;
  position: relative;
  overflow: hidden;
}

.theme-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  transition: left 0.3s ease;
  z-index: -1;
}

.theme-btn:hover {
  /* No hover animation */
}

.theme-btn:hover::before {
  /* No hover animation */
}

.theme-btn.active {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  border-color: var(--primary);
  box-shadow: none;
}

.theme-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.theme-btn span {
  font-size: var(--font-size-base);
}

.theme-btn[data-theme="light"].active {
  background: white;
  color: #1B1B1B;
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: none;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.footer-logo .logo-img {
  filter: brightness(0) invert(1);
}

.footer-tagline {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.footer-title {
  font-size: var(--font-size-lg);
  font-weight: 300;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.3px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--text-primary);
  transform: translateX(4px);
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.social-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
  font-weight: 500;
}

.social-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
  .btn {
    padding: 14px 28px;
    font-size: var(--font-size-base);
  }

  .btn-large {
    padding: 18px 32px;
    font-size: var(--font-size-base);
  }

  .btn:hover {
    /* No hover animation */
  }

  .btn-large:hover {
    /* No hover animation */
  }
  :root {
    --font-size-5xl: 48px;
    --font-size-4xl: 40px;
    --font-size-3xl: 36px;
    --font-size-2xl: 28px;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
  }
  
  .nav-links {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: 220px;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .community-stats {
    grid-template-columns: 1fr;
  }
  
  .step {
    flex-direction: column;
    text-align: center;
  }
  
  .step-number {
    align-self: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  section {
    padding: var(--spacing-xl) 0;
  }
  
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .hero-title {
    font-size: 160px;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .pricing-card {
    padding: var(--spacing-lg);
  }
}

/* Mobile Menu Active State */
.nav-links.active {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--card-bg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  border-top: 1px solid var(--border-color);
}

/* Fade-in Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

    padding: 0 var(--spacing-sm);
  }
  
  section {
    padding: var(--spacing-xl) 0;
  }
  
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .hero-title {
    font-size: 160px;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .pricing-card {
    padding: var(--spacing-lg);
  }
}

/* Mobile Menu Active State */
.nav-links.active {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--card-bg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  border-top: 1px solid var(--border-color);
}

/* Fade-in Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.theme-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: left;
  position: relative;
  overflow: hidden;
}

.theme-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  transition: left 0.3s ease;
  z-index: -1;
}

.theme-btn:hover {
  /* No hover animation */
}

.theme-btn:hover::before {
  /* No hover animation */
}

.theme-btn.active {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: white;
  border-color: var(--primary);
  box-shadow: none;
}

.theme-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.theme-btn span {
  font-size: var(--font-size-base);
}

.theme-btn[data-theme="light"].active {
  background: white;
  color: #1B1B1B;
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: none;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.footer-logo .logo-img {
  filter: brightness(0) invert(1);
}

.footer-tagline {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.footer-title {
  font-size: var(--font-size-lg);
  font-weight: 300;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.3px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--text-primary);
  transform: translateX(4px);
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.social-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
  font-weight: 500;
}

.social-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
  .btn {
    padding: 14px 28px;
    font-size: var(--font-size-base);
  }

  .btn-large {
    padding: 18px 32px;
    font-size: var(--font-size-base);
  }

  .btn:hover {
    /* No hover animation */
  }

  .btn-large:hover {
    /* No hover animation */
  }
  :root {
    --font-size-5xl: 48px;
    --font-size-4xl: 40px;
    --font-size-3xl: 36px;
    --font-size-2xl: 28px;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
  }
  
  .nav-links {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: 220px;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn {
    width: 100%;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .community-stats {
    grid-template-columns: 1fr;
  }
  
  .step {
    flex-direction: column;
    text-align: center;
  }
  
  .step-number {
    align-self: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  section {
    padding: var(--spacing-xl) 0;
  }
  
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .hero-title {
    font-size: 160px;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .pricing-card {
    padding: var(--spacing-lg);
  }
}

/* Mobile Menu Active State */
.nav-links.active {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--card-bg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  border-top: 1px solid var(--border-color);
}

/* Fade-in Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

    padding: 0 var(--spacing-sm);
  }
  
  section {
    padding: var(--spacing-xl) 0;
  }
  
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .hero-title {
    font-size: 160px;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .pricing-card {
    padding: var(--spacing-lg);
  }
}

/* Mobile Menu Active State */
.nav-links.active {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--card-bg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  border-top: 1px solid var(--border-color);
}

/* Fade-in Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}