/* ==========================================================================
   CSS Styles for Xizerexu - Sleep Optimization Guides
   Using BEM methodology with properties in alphabetical order
   ========================================================================== */

/* Imports and Fonts
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&family=Roboto+Slab:wght@400;500;600;700&display=swap');
@import url('https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.0/font/bootstrap-icons.css');

/* CSS Variables
   ========================================================================== */
:root {
  /* Colors */
  --color-background: #E6E8FA;
  --color-primary: #4831D4;
  --color-secondary: #8478F0;
  --color-text: #1F2937;
  --color-text-light: #4B5563;
  --color-white: #FFFFFF;
  --color-error: #EF4444;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  
  /* Typography */
  --font-body: 'Poppins', sans-serif;
  --font-heading: 'Roboto Slab', serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-xs: 0.75rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing */
  --spacing-0: 0;
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;
  --spacing-32: 8rem;
  
  /* Borders */
  --border-radius-none: 0;
  --border-radius-sm: 0.125rem;
  --border-radius-md: 0.25rem;
  --border-radius-lg: 0.5rem;
  --border-radius-xl: 1rem;
  --border-radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms;
  --transition-normal: 300ms;
  --transition-slow: 500ms;
  
  /* Breakpoints */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
  
  /* Container widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Base Styles
   ========================================================================== */
*, 
*::before, 
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  background-color: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  min-height: 100vh;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-4);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--spacing-4);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-normal) ease;
}

a:hover, 
a:focus {
  color: var(--color-secondary);
  text-decoration: underline;
}

a:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
}

button:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

ul, ol {
  margin-bottom: var(--spacing-4);
  padding-left: var(--spacing-6);
}

li {
  margin-bottom: var(--spacing-2);
}

/* Skip to content
   ========================================================================== */
.skip-to-content {
  background-color: var(--color-primary);
  border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
  color: var(--color-white);
  left: 0;
  opacity: 0;
  padding: var(--spacing-3) var(--spacing-4);
  position: absolute;
  text-decoration: none;
  top: -4rem;
  transform: translateY(-100%);
  transition: transform var(--transition-normal) ease;
  z-index: 1000;
}

.skip-to-content:focus {
  opacity: 1;
  outline: none;
  top: 0;
  transform: translateY(0);
}

/* Container
   ========================================================================== */
.container {
  margin-left: auto;
  margin-right: auto;
  max-width: var(--container-xl);
  padding-left: var(--spacing-4);
  padding-right: var(--spacing-4);
  width: 100%;
}

/* Buttons
   ========================================================================== */
.btn {
  align-items: center;
  background-color: var(--color-primary);
  border: 2px solid transparent;
  border-radius: var(--border-radius-md);
  color: var(--color-white);
  cursor: pointer;
  display: inline-flex;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  gap: var(--spacing-2);
  justify-content: center;
  line-height: 1;
  padding: var(--spacing-3) var(--spacing-6);
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-normal) ease;
  white-space: nowrap;
}

.btn:hover, 
.btn:focus {
  background-color: var(--color-secondary);
  color: var(--color-white);
  text-decoration: none;
}

.btn--secondary {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--secondary:hover, 
.btn--secondary:focus {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn--sm {
  font-size: var(--font-size-sm);
  padding: var(--spacing-2) var(--spacing-4);
}

.btn--lg {
  font-size: var(--font-size-lg);
  padding: var(--spacing-4) var(--spacing-8);
}

/* Header
   ========================================================================== */
.header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-md);
  left: 0;
  padding: var(--spacing-4) 0;
  position: sticky;
  right: 0;
  top: 0;
  transition: all var(--transition-normal) ease;
  width: 100%;
  z-index: 100;
}

.header__container {
  align-items: center;
  display: flex;
  gap: var(--spacing-6);
  justify-content: space-between;
}

.header__logo {
  display: block;
  height: auto;
  width: 150px;
}

.header__logo:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: var(--spacing-2);
}

.header__logo img {
  display: block;
  height: auto;
  width: 100%;
}

/* Navigation
   ========================================================================== */
.nav {
  display: flex;
  justify-content: flex-end;
}

.nav__toggle {
  align-items: center;
  background: none;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  font-size: var(--font-size-2xl);
  height: 44px;
  justify-content: center;
  padding: 0;
  width: 44px;
}

@media (min-width: 1024px) {
  .nav__toggle {
    display: none;
  }
}

.nav__menu {
  align-items: center;
  background-color: var(--color-white);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
  height: 100vh;
  left: 0;
  list-style: none;
  margin: 0;
  padding: var(--spacing-16) var(--spacing-8);
  position: fixed;
  top: 0;
  transform: translateX(-100%);
  transition: transform var(--transition-normal) ease;
  width: 100%;
  z-index: 200;
}

.nav__menu.is-active {
  transform: translateX(0);
}

@media (min-width: 1024px) {
  .nav__menu {
    background-color: transparent;
    flex-direction: row;
    gap: var(--spacing-8);
    height: auto;
    margin: 0;
    padding: 0;
    position: static;
    transform: none;
    width: auto;
  }
}

.nav__link {
  color: var(--color-text);
  display: block;
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-2);
  position: relative;
  text-decoration: none;
  transition: color var(--transition-normal) ease;
}

@media (min-width: 1200px) {
  .nav__link {
    font-size: var(--font-size-lg);
  }
}

.nav__link:hover, 
.nav__link:focus {
  color: var(--color-primary);
  text-decoration: none;
}

.nav__link::after {
  background-color: var(--color-primary);
  bottom: 0;
  content: '';
  height: 2px;
  left: 0;
  position: absolute;
  transform: scaleX(0);
  transition: transform var(--transition-normal) ease;
  width: 100%;
}

.nav__link:hover::after, 
.nav__link:focus::after, 
.nav__link.is-active::after {
  transform: scaleX(1);
}

.nav__close {
  color: var(--color-text);
  font-size: var(--font-size-2xl);
  position: absolute;
  right: var(--spacing-4);
  top: var(--spacing-4);
}

@media (min-width: 1024px) {
  .nav__close {
    display: none;
  }
}

.nav__backdrop {
  background-color: rgba(0, 0, 0, 0.5);
  height: 100vh;
  left: 0;
  opacity: 0;
  pointer-events: none;
  position: fixed;
  top: 0;
  transition: opacity var(--transition-normal) ease;
  width: 100vw;
  z-index: 199;
}

.nav__backdrop.is-active {
  opacity: 1;
  pointer-events: all;
}

@media (min-width: 1024px) {
  .nav__backdrop {
    display: none;
  }
}

/* Hero Section
   ========================================================================== */
.hero {
  padding: var(--spacing-12) 0;
  position: relative;
}

@media (min-width: 768px) {
  .hero {
    padding: var(--spacing-20) 0;
  }
}

.hero__container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}

@media (min-width: 768px) {
  .hero__container {
    align-items: center;
    flex-direction: row;
  }
}

.hero__content {
  flex: 1;
}

@media (min-width: 768px) {
  .hero__content {
    max-width: 50%;
  }
}

.hero__title {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-4);
}

@media (min-width: 768px) {
  .hero__title {
    font-size: var(--font-size-5xl);
  }
}

.hero__subtitle {
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-6);
}

@media (min-width: 768px) {
  .hero__subtitle {
    font-size: var(--font-size-xl);
  }
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
}

.hero__image {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  flex: 1;
  overflow: hidden;
}

.hero__image img {
  display: block;
  height: auto;
  object-fit: cover;
  width: 100%;
}

/* About Section
   ========================================================================== */
.about {
  background-color: var(--color-white);
  padding: var(--spacing-16) 0;
}

.about__container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}

@media (min-width: 768px) {
  .about__container {
    align-items: center;
    flex-direction: row-reverse;
  }
}

.about__content {
  flex: 1;
}

@media (min-width: 768px) {
  .about__content {
    max-width: 50%;
  }
}

.about__title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-4);
}

.about__text {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-6);
}

.about__image {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  flex: 1;
  overflow: hidden;
}

.about__image img {
  display: block;
  height: auto;
  object-fit: cover;
  width: 100%;
}

/* Features Section
   ========================================================================== */
.features {
  background: linear-gradient(to bottom, var(--color-background), var(--color-white));
  padding: var(--spacing-16) 0;
}

.features__title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-8);
  text-align: center;
}

.features__subtitle {
  color: var(--color-text-light);
  margin: 0 auto var(--spacing-12);
  max-width: 800px;
  text-align: center;
}

.features__grid {
  display: grid;
  gap: var(--spacing-6);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .features__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  padding: var(--spacing-6);
  transition: transform var(--transition-normal) ease, box-shadow var(--transition-normal) ease;
}

.feature:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.feature__icon {
  align-items: center;
  background-color: var(--color-secondary);
  border-radius: var(--border-radius-md);
  color: var(--color-white);
  display: flex;
  font-size: var(--font-size-2xl);
  height: 60px;
  justify-content: center;
  margin-bottom: var(--spacing-4);
  width: 60px;
}

.feature__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-2);
}

.feature__text {
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* Pricing Section
   ========================================================================== */
.pricing {
  background: linear-gradient(to bottom, var(--color-white), var(--color-background));
  padding: var(--spacing-16) 0;
}

.pricing__title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-8);
  text-align: center;
}

.pricing__subtitle {
  color: var(--color-text-light);
  margin: 0 auto var(--spacing-12);
  max-width: 800px;
  text-align: center;
}

.pricing__grid {
  display: grid;
  gap: var(--spacing-6);
  grid-template-columns: 1fr;
  margin-bottom: var(--spacing-12);
}

@media (min-width: 640px) {
  .pricing__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .pricing__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pricing__card {
  background-color: var(--color-white);
  border: 2px solid transparent;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  transition: transform var(--transition-normal) ease, box-shadow var(--transition-normal) ease, border-color var(--transition-normal) ease;
}

.pricing__card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.pricing__card--featured {
  border-color: var(--color-primary);
  transform: scale(1.05);
}

@media (max-width: 1023px) {
  .pricing__card--featured {
    transform: none;
  }
}

.pricing__card--featured:hover {
  transform: scale(1.05) translateY(-5px);
}

@media (max-width: 1023px) {
  .pricing__card--featured:hover {
    transform: translateY(-5px);
  }
}

.pricing__badge {
  background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  left: 50%;
  padding: var(--spacing-2) var(--spacing-6);
  position: absolute;
  text-align: center;
  top: var(--spacing-4);
  transform: translateX(-50%);
  z-index: 10;
}

.pricing__badge::after {
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 8px solid var(--color-primary);
  bottom: -8px;
  content: '';
  left: 50%;
  position: absolute;
  transform: translateX(-50%);
}

.pricing__header {
  background: linear-gradient(135deg, var(--color-background), var(--color-white));
  padding: var(--spacing-8) var(--spacing-6) var(--spacing-6);
  text-align: center;
}

.pricing__card--featured .pricing__header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-white);
  margin-top: var(--spacing-8);
}

.pricing__name {
  color: inherit;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-4);
}

.pricing__price {
  align-items: baseline;
  display: flex;
  justify-content: center;
}

.pricing__amount {
  font-family: var(--font-heading);
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  line-height: 1;
}

.pricing__currency {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-left: var(--spacing-1);
}

.pricing__period {
  color: inherit;
  font-size: var(--font-size-base);
  margin-left: var(--spacing-1);
  opacity: 0.8;
}

.pricing__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: var(--spacing-6);
}

.pricing__features {
  flex: 1;
  list-style: none;
  margin: 0 0 var(--spacing-8) 0;
  padding: 0;
}

.pricing__feature {
  align-items: flex-start;
  display: flex;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.pricing__feature:last-child {
  margin-bottom: 0;
}

.pricing__feature-icon {
  color: var(--color-success);
  flex-shrink: 0;
  font-size: var(--font-size-lg);
  margin-top: 2px;
}

.pricing__feature span {
  color: var(--color-text-light);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
}

.pricing__btn {
  margin-top: auto;
  width: 100%;
}

.pricing__card--featured .pricing__btn {
  background-color: var(--color-white);
  color: var(--color-primary);
}

.pricing__card--featured .pricing__btn:hover,
.pricing__card--featured .pricing__btn:focus {
  background-color: var(--color-background);
  color: var(--color-primary);
}

.pricing__guarantee {
  align-items: center;
  background-color: var(--color-white);
  border: 2px solid var(--color-success);
  border-radius: var(--border-radius-lg);
  display: flex;
  gap: var(--spacing-4);
  margin: 0 auto;
  max-width: 600px;
  padding: var(--spacing-6);
}

.pricing__guarantee-icon {
  color: var(--color-success);
  flex-shrink: 0;
  font-size: var(--font-size-3xl);
}

.pricing__guarantee-content {
  flex: 1;
}

.pricing__guarantee-title {
  color: var(--color-text);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-2);
}

.pricing__guarantee-text {
  color: var(--color-text-light);
  font-size: var(--font-size-base);
  margin: 0;
}

/* Nutrition Section
   ========================================================================== */
.nutrition {
  background-color: var(--color-white);
  padding: var(--spacing-16) 0;
}

.nutrition__title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-8);
  text-align: center;
}

.nutrition__subtitle {
  color: var(--color-text-light);
  margin: 0 auto var(--spacing-12);
  max-width: 800px;
  text-align: center;
}

.nutrition__grid {
  display: grid;
  gap: var(--spacing-8);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .nutrition__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.nutrition__item {
  align-items: flex-start;
  display: flex;
  gap: var(--spacing-4);
}

.nutrition__icon {
  align-items: center;
  background-color: var(--color-primary);
  border-radius: var(--border-radius-md);
  color: var(--color-white);
  display: flex;
  flex-shrink: 0;
  font-size: var(--font-size-xl);
  height: 50px;
  justify-content: center;
  width: 50px;
}

.nutrition__content h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-2);
}

.nutrition__content p {
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* Testimonials Section
   ========================================================================== */
.testimonials {
  background: linear-gradient(to bottom, var(--color-white), var(--color-background));
  padding: var(--spacing-16) 0;
}

.testimonials__title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-8);
  text-align: center;
}

.testimonials__subtitle {
  color: var(--color-text-light);
  margin: 0 auto var(--spacing-12);
  max-width: 800px;
  text-align: center;
}

.testimonials__grid {
  display: grid;
  gap: var(--spacing-6);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .testimonials__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .testimonials__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  padding: var(--spacing-6);
}

.testimonial__content {
  color: var(--color-text-light);
  flex-grow: 1;
  font-style: italic;
  margin-bottom: var(--spacing-4);
  position: relative;
}

.testimonial__content::before {
  color: var(--color-secondary);
  content: '"';
  font-family: var(--font-heading);
  font-size: var(--font-size-5xl);
  left: -10px;
  line-height: 1;
  opacity: 0.3;
  position: absolute;
  top: -10px;
}

.testimonial__author {
  align-items: center;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  gap: var(--spacing-3);
  padding-top: var(--spacing-4);
}

.testimonial__avatar {
  border-radius: 50%;
  height: 50px;
  overflow: hidden;
  width: 50px;
}

.testimonial__avatar img {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.testimonial__info {
  display: flex;
  flex-direction: column;
}

.testimonial__name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin: 0;
}

.testimonial__title {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin: 0;
}

/* FAQ Section
   ========================================================================== */
.faq {
  background-color: var(--color-background);
  padding: var(--spacing-16) 0;
}

.faq__title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-8);
  text-align: center;
}

.faq__subtitle {
  color: var(--color-text-light);
  margin: 0 auto var(--spacing-12);
  max-width: 800px;
  text-align: center;
}

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

.faq__item {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  margin-bottom: var(--spacing-4);
}

.faq__question {
  align-items: center;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  justify-content: space-between;
  padding: var(--spacing-4) 0;
  text-align: left;
  width: 100%;
}

.faq__question:focus {
  outline: none;
}

.faq__icon {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
  transition: transform var(--transition-normal) ease;
}

.faq__item.is-active .faq__icon {
  transform: rotate(180deg);
}

.faq__answer {
  color: var(--color-text-light);
  display: none;
  padding: 0 0 var(--spacing-4);
}

.faq__item.is-active .faq__answer {
  display: block;
}

/* Stats Section
   ========================================================================== */
.stats {
  background-color: var(--color-white);
  padding: var(--spacing-16) 0;
}

.stats__title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-8);
  text-align: center;
}

.stats__subtitle {
  color: var(--color-text-light);
  margin: 0 auto var(--spacing-12);
  max-width: 800px;
  text-align: center;
}

.stats__grid {
  display: grid;
  gap: var(--spacing-6);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .stats__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat {
  background-color: var(--color-background);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-6);
  text-align: center;
}

.stat__value {
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  line-height: 1;
  margin-bottom: var(--spacing-2);
}

.stat__label {
  color: var(--color-text);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  margin: 0;
}

/* Contact Section
   ========================================================================== */
.contact {
  background: linear-gradient(to bottom, var(--color-white), var(--color-background));
  padding: var(--spacing-16) 0;
}

.contact__title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-8);
  text-align: center;
}

.contact__subtitle {
  color: var(--color-text-light);
  margin: 0 auto var(--spacing-12);
  max-width: 800px;
  text-align: center;
}

.contact__container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}

@media (min-width: 768px) {
  .contact__container {
    flex-direction: row;
  }
}

.contact__info {
  flex: 1;
}

@media (min-width: 768px) {
  .contact__info {
    max-width: 40%;
  }
}

.contact__text {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-6);
}

.contact__item {
  align-items: center;
  display: flex;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-4);
}

.contact__icon {
  color: var(--color-primary);
  font-size: var(--font-size-xl);
}

.contact__label {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
  margin: 0;
}

.contact__form {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  flex: 1;
  padding: var(--spacing-8);
}

.form__group {
  margin-bottom: var(--spacing-4);
}

.form__label {
  color: var(--color-text);
  display: block;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-2);
}

.form__input,
.form__textarea {
  background-color: var(--color-background);
  border: 1px solid #E2E8F0;
  border-radius: var(--border-radius-md);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  padding: var(--spacing-3);
  transition: border-color var(--transition-normal) ease, box-shadow var(--transition-normal) ease;
  width: 100%;
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(72, 49, 212, 0.2);
  outline: none;
}

.form__textarea {
  min-height: 150px;
  resize: vertical;
}

.form__checkbox {
  align-items: flex-start;
  display: flex;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-6);
}

.form__checkbox-input {
  appearance: none;
  background-color: var(--color-background);
  border: 2px solid #E2E8F0;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  flex-shrink: 0;
  height: 20px;
  margin-top: 3px;
  position: relative;
  transition: all var(--transition-normal) ease;
  width: 20px;
}

.form__checkbox-input:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.form__checkbox-input:checked::after {
  border-bottom: 2px solid var(--color-white);
  border-right: 2px solid var(--color-white);
  content: '';
  display: block;
  height: 10px;
  left: 6px;
  position: absolute;
  top: 2px;
  transform: rotate(45deg);
  width: 5px;
}

.form__checkbox-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(72, 49, 212, 0.2);
  outline: none;
}

.form__checkbox-label {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

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

.form__error {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-1);
}

/* Footer
   ========================================================================== */
.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-12) 0 var(--spacing-6);
}

.footer__container {
  display: grid;
  gap: var(--spacing-8);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .footer__container {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .footer__container .footer__bottom {
    grid-column: span 4;
  }
}

.footer__logo {
  display: block;
  margin-bottom: var(--spacing-4);
  width: 150px;
}

.footer__logo img {
  filter: brightness(10);
}

.footer__about {
  margin-bottom: var(--spacing-4);
  opacity: 0.8;
}

.footer__heading {
  color: var(--color-white);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-4);
}

.footer__nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer__nav-item {
  margin-bottom: var(--spacing-2);
}

.footer__nav-link {
  color: var(--color-white);
  opacity: 0.8;
  text-decoration: none;
  transition: opacity var(--transition-normal) ease;
}

.footer__nav-link:hover, 
.footer__nav-link:focus {
  opacity: 1;
  text-decoration: underline;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  margin-top: var(--spacing-12);
  padding-top: var(--spacing-6);
}

@media (min-width: 768px) {
  .footer__bottom {
    align-items: center;
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__copyright {
  font-size: var(--font-size-sm);
  opacity: 0.8;
}

.footer__policies {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
}

.footer__policy-link {
  color: var(--color-white);
  font-size: var(--font-size-sm);
  opacity: 0.8;
  text-decoration: none;
  transition: opacity var(--transition-normal) ease;
}

.footer__policy-link:hover, 
.footer__policy-link:focus {
  opacity: 1;
  text-decoration: underline;
}

/* Cookie Consent
   ========================================================================== */
.cookie-consent {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  bottom: var(--spacing-4);
  box-shadow: var(--shadow-xl);
  display: none;
  left: var(--spacing-4);
  max-width: 400px;
  padding: var(--spacing-6);
  position: fixed;
  right: var(--spacing-4);
  z-index: 1000;
}

@media (min-width: 640px) {
  .cookie-consent {
    left: var(--spacing-4);
    max-width: 400px;
    right: auto;
  }
}

.cookie-consent.is-active {
  display: block;
}

.cookie-consent__title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-3);
}

.cookie-consent__text {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-4);
}

.cookie-consent__actions {
  display: flex;
  gap: var(--spacing-3);
}

/* Back to Top
   ========================================================================== */
.back-to-top {
  align-items: center;
  background-color: var(--color-primary);
  border-radius: 50%;
  bottom: var(--spacing-6);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
  display: flex;
  font-size: var(--font-size-xl);
  height: 50px;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  position: fixed;
  right: var(--spacing-6);
  transition: all var(--transition-normal) ease;
  width: 50px;
  z-index: 99;
}

.back-to-top.is-active {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover, 
.back-to-top:focus {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

/* Thank You Page
   ========================================================================== */
.thank-you {
  align-items: center;
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 300px);
  padding: var(--spacing-16) 0;
  text-align: center;
}

.thank-you__icon {
  color: var(--color-success);
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-6);
}

.thank-you__title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-4);
}

.thank-you__text {
  color: var(--color-text-light);
  margin: 0 auto var(--spacing-8);
  max-width: 600px;
}

/* Policy Pages
   ========================================================================== */
.policy {
  background-color: var(--color-white);
  padding: var(--spacing-16) 0;
}

.policy__container {
  max-width: 800px;
}

.policy__title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-8);
}

.policy__date {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-8);
}

.policy__section {
  margin-bottom: var(--spacing-8);
}

.policy__section-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-4);
}

.policy__text {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-4);
}

.policy__list {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-4);
  padding-left: var(--spacing-6);
}

.policy__list-item {
  margin-bottom: var(--spacing-2);
}

.policy__table {
  border-collapse: collapse;
  border-spacing: 0;
  margin-bottom: var(--spacing-6);
  width: 100%;
}

.policy__table th,
.policy__table td {
  border: 1px solid rgba(0, 0, 0, 0.1);
  padding: 0.5rem 0.75rem;
}

/* Utility Classes
   ========================================================================== */
.text-center {
  text-align: center;
}

.mb-0 {
  margin-bottom: 0;
}

.mb-4 {
  margin-bottom: var(--spacing-4);
}

.mb-8 {
  margin-bottom: var(--spacing-8);
}

.visually-hidden {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}