/* Variables */
:root {
  /* Colors */
  --color-bg: #0F172A;
  --color-accent: #F59E0B;
  --color-accent-light: #FBBF24;
  --color-accent-dark: #D97706;
  --color-text: #FFFFFF;
  --color-text-secondary: rgba(255, 255, 255, 0.7);
  --color-text-tertiary: rgba(255, 255, 255, 0.5);
  --color-card-bg: rgba(30, 41, 59, 0.7);
  --color-card-hover: rgba(30, 41, 59, 0.9);
  --color-input-bg: rgba(15, 23, 42, 0.7);
  --color-input-border: rgba(255, 255, 255, 0.2);
  --color-input-focus: rgba(245, 158, 11, 0.5);
  --color-success: #10B981;
  --color-error: #EF4444;

  /* Typography */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Open Sans', sans-serif;
  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem;  /* 36px */
  --font-size-5xl: 3rem;     /* 48px */
  --font-size-6xl: 3.75rem;  /* 60px */
  --line-height-tight: 1.1;
  --line-height-normal: 1.5;
  --line-height-loose: 1.75;

  /* Spacing */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  --spacing-4xl: 6rem;     /* 96px */

  /* Shadows */
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.3);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.1);

  /* Border Radius */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 1rem;       /* 16px */
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;

  /* Z-index */
  --z-below: -1;
  --z-normal: 1;
  --z-above: 10;
  --z-header: 100;
  --z-overlay: 200;
  --z-modal: 300;
  --z-toast: 400;
  --z-tooltip: 500;
  
  /* Breakpoints */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}

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

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
}

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

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

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

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-light);
}

ul, ol {
  list-style-position: inside;
  margin-bottom: var(--spacing-md);
}

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

button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
}

/* Accessibility */
.skip-link {
  background-color: var(--color-accent);
  color: var(--color-bg);
  font-weight: 600;
  left: -9999px;
  padding: var(--spacing-md);
  position: absolute;
  top: var(--spacing-sm);
  z-index: var(--z-header);
}

.skip-link:focus {
  left: var(--spacing-sm);
}

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

/* Responsive Container */
.container {
  margin: 0 auto;
  max-width: 1200px;
  padding: 0 var(--spacing-lg);
  width: 100%;
}

/* Buttons */
.btn {
  align-items: center;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  display: inline-flex;
  font-size: var(--font-size-base);
  font-weight: 600;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  position: relative;
  text-align: center;
  transition: all var(--transition-normal);
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-bg);
}

.btn--primary:hover, 
.btn--primary:focus {
  background-color: var(--color-accent-light);
  color: var(--color-bg);
  transform: translateY(-2px);
}

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

.btn--secondary:hover, 
.btn--secondary:focus {
  background-color: rgba(245, 158, 11, 0.1);
  border-color: var(--color-accent-light);
  color: var(--color-accent-light);
  transform: translateY(-2px);
}

.btn--full {
  width: 100%;
}

/* Header & Navigation */
.header {
  backdrop-filter: blur(8px);
  background-color: rgba(15, 23, 42, 0.8);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  width: 100%;
  z-index: var(--z-header);
}

.header__container {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1200px;
  padding: 0 var(--spacing-lg);
  width: 100%;
}

.logo {
  display: block;
  position: relative;
}

.logo::after {
  background-color: var(--color-accent);
  bottom: -4px;
  content: '';
  height: 2px;
  left: 0;
  position: absolute;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
  width: 100%;
}

.logo:hover::after {
  transform: scaleX(1);
}

.nav__menu {
  display: none;
  list-style: none;
  margin: 0;
}

.nav__toggle {
  align-items: center;
  display: flex;
  height: 40px;
  justify-content: center;
  width: 40px;
}

.nav__toggle-icon {
  background-color: var(--color-text);
  height: 2px;
  position: relative;
  transition: background-color var(--transition-fast);
  width: 24px;
}

.nav__toggle-icon::before,
.nav__toggle-icon::after {
  background-color: var(--color-text);
  content: '';
  height: 2px;
  left: 0;
  position: absolute;
  transition: transform var(--transition-normal);
  width: 24px;
}

.nav__toggle-icon::before {
  top: -8px;
}

.nav__toggle-icon::after {
  bottom: -8px;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon {
  background-color: transparent;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon::before {
  transform: rotate(45deg) translate(6px, 6px);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon::after {
  transform: rotate(-45deg) translate(6px, -6px);
}

@media (min-width: 768px) {
  .nav__toggle {
    display: none;
  }
  
  .nav__menu {
    align-items: center;
    display: flex;
    gap: var(--spacing-lg);
  }
  
  .nav__link {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
  }
  
  .nav__link::after {
    background-color: var(--color-accent);
    bottom: 0;
    content: '';
    height: 2px;
    left: 0;
    position: absolute;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transition-normal);
    width: 100%;
  }
  
  .nav__link:hover,
  .nav__link:focus {
    color: var(--color-accent);
  }
  
  .nav__link:hover::after,
  .nav__link:focus::after {
    transform: scaleX(1);
  }
  
  .nav__link--highlighted {
    background-color: var(--color-accent);
    border-radius: var(--radius-md);
    color: var(--color-bg);
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .nav__link--highlighted::after {
    display: none;
  }
  
  .nav__link--highlighted:hover,
  .nav__link--highlighted:focus {
    background-color: var(--color-accent-light);
    color: var(--color-bg);
    transform: translateY(-2px);
  }
}

/* Mobile Navigation */
@media (max-width: 767px) {
  .nav__toggle[aria-expanded="true"] + .nav__menu {
    background-color: var(--color-bg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    left: 0;
    padding: var(--spacing-xl);
    position: absolute;
    right: 0;
    top: 100%;
  }
  
  .nav__item {
    text-align: center;
    width: 100%;
  }
  
  .nav__link {
    color: var(--color-text);
    display: block;
    font-size: var(--font-size-lg);
    padding: var(--spacing-md);
    width: 100%;
  }
  
  .nav__link--highlighted {
    background-color: var(--color-accent);
    border-radius: var(--radius-md);
    color: var(--color-bg);
  }
}

/* Section Styles */
.section-title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-xl);
  position: relative;
  text-align: center;
}

.section-title::after {
  background-color: var(--color-accent);
  bottom: -10px;
  content: '';
  height: 3px;
  left: 50%;
  position: absolute;
  transform: translateX(-50%);
  width: 60px;
}

.section-title--light::after {
  background-color: var(--color-text);
}

/* Hero Section */
.hero {
  align-items: center;
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 80px);
  overflow: hidden;
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.hero__content {
  max-width: 700px;
  padding: 0 var(--spacing-lg);
  position: relative;
  text-align: center;
  z-index: var(--z-normal);
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

.hero__slogan {
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-style: italic;
  margin-bottom: var(--spacing-xl);
}

.hero__cta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.hero__visual {
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
  z-index: var(--z-below);
}

.hero__shape {
  background: radial-gradient(circle, var(--color-accent) 0%, rgba(245, 158, 11, 0) 70%);
  border-radius: 50%;
  opacity: 0.2;
  position: absolute;
}

.hero__shape--1 {
  height: 400px;
  left: -200px;
  top: -100px;
  width: 400px;
}

.hero__shape--2 {
  bottom: -100px;
  height: 300px;
  right: -150px;
  width: 300px;
}

.hero__image {
  height: 100%;
  object-fit: cover;
  opacity: 0.1;
  width: 100%;
}

@media (min-width: 768px) {
  .hero {
    flex-direction: row;
    justify-content: space-between;
  }
  
  .hero__content {
    text-align: left;
  }
  
  .hero__title {
    font-size: var(--font-size-5xl);
  }
  
  .hero__cta {
    flex-direction: row;
  }
  
  .hero__shape--1 {
    height: 600px;
    left: -300px;
    top: -200px;
    width: 600px;
  }
  
  .hero__shape--2 {
    bottom: -150px;
    height: 500px;
    right: -250px;
    width: 500px;
  }
}

/* Mission Section */
.mission {
  padding: var(--spacing-3xl) 0;
}

.mission .container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.mission__content {
  max-width: 600px;
}

.mission__text {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
}

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

.mission__value {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.mission__icon {
  color: var(--color-accent);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

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

.mission__visual {
  display: none;
}

@media (min-width: 768px) {
  .mission .container {
    flex-direction: row;
  }
  
  .mission__values {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .mission__visual {
    display: block;
    flex: 1;
  }
  
  .mission__image {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    height: 100%;
    object-fit: cover;
  }
}

/* Timeline Section */
.timeline {
  background-color: rgba(30, 41, 59, 0.5);
  padding: var(--spacing-3xl) 0;
}

.timeline__container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.timeline__item {
  align-items: flex-start;
  display: flex;
  gap: var(--spacing-lg);
  position: relative;
}

.timeline__item:not(:last-child)::after {
  background-color: var(--color-accent);
  bottom: -var(--spacing-xl);
  content: '';
  height: calc(100% - 60px);
  left: 25px;
  position: absolute;
  top: 60px;
  width: 2px;
}

.timeline__icon {
  align-items: center;
  background-color: var(--color-accent);
  border-radius: 50%;
  color: var(--color-bg);
  display: flex;
  flex-shrink: 0;
  font-size: var(--font-size-xl);
  height: 50px;
  justify-content: center;
  position: relative;
  width: 50px;
  z-index: var(--z-normal);
}

.timeline__content {
  padding-bottom: var(--spacing-lg);
}

.timeline__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.timeline__item[data-step]::before {
  background-color: var(--color-bg);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  content: attr(data-step);
  font-size: var(--font-size-xs);
  font-weight: 700;
  height: 24px;
  left: -12px;
  line-height: 20px;
  position: absolute;
  text-align: center;
  top: -12px;
  width: 24px;
}

@media (min-width: 768px) {
  .timeline__container {
    position: relative;
  }
  
  .timeline__container::before {
    background-color: var(--color-accent);
    content: '';
    height: 2px;
    left: 0;
    position: absolute;
    top: 25px;
    width: 100%;
  }
  
  .timeline__item {
    flex-direction: column;
    width: 18%;
  }
  
  .timeline__container {
    flex-direction: row;
    justify-content: space-between;
  }
  
  .timeline__item:not(:last-child)::after {
    display: none;
  }
  
  .timeline__icon {
    margin-bottom: var(--spacing-md);
  }
  
  .timeline__content {
    text-align: center;
  }
}

/* Services Section */
.services {
  padding: var(--spacing-3xl) 0;
}

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

.service-card {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
}

.service-card__icon {
  align-items: center;
  background-color: rgba(245, 158, 11, 0.1);
  border-radius: 50%;
  color: var(--color-accent);
  display: flex;
  font-size: var(--font-size-2xl);
  height: 60px;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  width: 60px;
}

.service-card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

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

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

/* Use Cases Section */
.use-cases {
  padding: var(--spacing-3xl) 0;
}

.use-cases__slider {
  margin-bottom: var(--spacing-xl);
  overflow: hidden;
  position: relative;
}

.use-case {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.use-case__content {
  padding: var(--spacing-xl);
}

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

.use-case__description {
  margin-bottom: var(--spacing-md);
}

.use-case__results {
  list-style: none;
  margin-bottom: 0;
}

.use-case__results li {
  align-items: center;
  display: flex;
  margin-bottom: var(--spacing-sm);
}

.use-case__results li::before {
  color: var(--color-accent);
  content: '→';
  display: inline-block;
  font-weight: bold;
  margin-right: var(--spacing-sm);
}

.use-case__visual {
  height: 200px;
  overflow: hidden;
  width: 100%;
}

.use-case__image {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.use-cases__controls {
  align-items: center;
  display: flex;
  justify-content: center;
}

.use-cases__control {
  align-items: center;
  background-color: transparent;
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  color: var(--color-accent);
  display: flex;
  height: 40px;
  justify-content: center;
  transition: all var(--transition-normal);
  width: 40px;
}

.use-cases__control:hover,
.use-cases__control:focus {
  background-color: var(--color-accent);
  color: var(--color-bg);
}

.use-cases__indicators {
  display: flex;
  gap: var(--spacing-sm);
  margin: 0 var(--spacing-md);
}

.use-cases__indicator {
  background-color: var(--color-text-tertiary);
  border-radius: var(--radius-full);
  cursor: pointer;
  height: 8px;
  transition: all var(--transition-normal);
  width: 8px;
}

.use-cases__indicator.active,
.use-cases__indicator:hover {
  background-color: var(--color-accent);
  transform: scale(1.2);
}

@media (min-width: 768px) {
  .use-case {
    flex-direction: row;
  }
  
  .use-case__content {
    flex: 1;
  }
  
  .use-case__visual {
    flex: 1;
    height: auto;
  }
}

/* Industries Section */
.industries {
  background-color: rgba(30, 41, 59, 0.5);
  padding: var(--spacing-3xl) 0;
}

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

.industry-card {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  padding: var(--spacing-xl);
  position: relative;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.industry-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
}

.industry-card::before {
  background-color: var(--color-accent);
  content: '';
  height: 4px;
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
}

.industry-card__icon {
  align-items: center;
  background-color: rgba(245, 158, 11, 0.1);
  border-radius: 50%;
  color: var(--color-accent);
  display: flex;
  font-size: var(--font-size-2xl);
  height: 60px;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  width: 60px;
}

.industry-card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.industry-card__highlights {
  list-style: none;
  margin-top: var(--spacing-md);
}

.industry-card__highlights li {
  align-items: center;
  display: flex;
  margin-bottom: var(--spacing-sm);
}

.industry-card__highlights li::before {
  color: var(--color-accent);
  content: '•';
  display: inline-block;
  font-size: var(--font-size-xl);
  line-height: 1;
  margin-right: var(--spacing-sm);
}

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

/* Results Section */
.results {
  padding: var(--spacing-3xl) 0;
}

.results__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.results__text {
  max-width: 800px;
  text-align: center;
  margin: 0 auto;
}

.results__intro {
  font-size: var(--font-size-xl);
}

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

.metric-card {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  text-align: center;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.metric-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
}

.metric-card__value {
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.metric-card__value::after {
  content: '%';
}

.metric-card:nth-child(4) .metric-card__value::after {
  content: '+';
}

.metric-card__label {
  font-size: var(--font-size-base);
}

.results__visual {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  height: 400px;
  margin: 0 auto;
  max-width: 800px;
  overflow: hidden;
}

.results__image {
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

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

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

/* Team Section */
.team {
  background-color: rgba(30, 41, 59, 0.5);
  padding: var(--spacing-3xl) 0;
}

.team__grid {
  display: grid;
  gap: var(--spacing-2xl);
  grid-template-columns: 1fr;
}

.team-member {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: center;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.team-member:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
}

.team-member__photo {
  height: 250px;
  overflow: hidden;
  position: relative;
  width: 100%;
}

.team-member__image {
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.team-member__name {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-xs);
  padding-top: var(--spacing-lg);
}

.team-member__role {
  color: var(--color-accent);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-md);
}

.team-member__bio {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  margin-bottom: var(--spacing-lg);
  padding: 0 var(--spacing-lg);
}

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

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

/* FAQ Section */
.faq {
  padding: var(--spacing-3xl) 0;
}

.faq__grid {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: 1fr;
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-item__question {
  align-items: center;
  background-color: transparent;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  font-size: var(--font-size-lg);
  justify-content: space-between;
  padding: var(--spacing-lg);
  text-align: left;
  width: 100%;
}

.faq-item__icon {
  color: var(--color-accent);
  font-size: var(--font-size-xl);
  transition: transform var(--transition-normal);
}

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

.faq-item__answer {
  background-color: rgba(15, 23, 42, 0.05);
  display: none;
  padding: 0;
}

.faq-item__question[aria-expanded="true"] + .faq-item__answer {
  display: block;
}

.faq-item__answer p {
  margin-bottom: 0;
  padding: var(--spacing-lg);
}

/* Roadmap Section */
.roadmap {
  background-color: rgba(30, 41, 59, 0.5);
  padding: var(--spacing-3xl) 0;
}

.roadmap__visual {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  margin: 0 auto;
  max-width: 800px;
  position: relative;
}

.roadmap__node {
  align-items: flex-start;
  display: flex;
  gap: var(--spacing-lg);
  position: relative;
}

.roadmap__node:not(:last-child)::after {
  background-color: var(--color-text);
  bottom: -var(--spacing-xl);
  content: '';
  height: calc(100% - 60px);
  left: 25px;
  opacity: 0.3;
  position: absolute;
  top: 60px;
  width: 2px;
}

.roadmap__icon {
  align-items: center;
  background-color: var(--color-text);
  border-radius: 50%;
  color: var(--color-bg);
  display: flex;
  flex-shrink: 0;
  font-size: var(--font-size-xl);
  height: 50px;
  justify-content: center;
  position: relative;
  width: 50px;
  z-index: var(--z-normal);
}

.roadmap__content {
  padding-bottom: var(--spacing-lg);
}

.roadmap__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.roadmap__node[data-step]::before {
  background-color: var(--color-bg);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  content: attr(data-step);
  font-size: var(--font-size-xs);
  font-weight: 700;
  height: 24px;
  left: -12px;
  line-height: 20px;
  position: absolute;
  text-align: center;
  top: -12px;
  width: 24px;
}

@media (min-width: 768px) {
  .roadmap__visual {
    flex-direction: row;
    justify-content: space-between;
  }
  
  .roadmap__visual::before {
    background-color: var(--color-text);
    content: '';
    height: 2px;
    left: 0;
    opacity: 0.3;
    position: absolute;
    top: 25px;
    width: 100%;
  }
  
  .roadmap__node {
    flex-direction: column;
    text-align: center;
    width: 18%;
  }
  
  .roadmap__node:not(:last-child)::after {
    display: none;
  }
  
  .roadmap__icon {
    margin: 0 auto var(--spacing-md);
  }
}

/* Contact Section */
.contact {
  padding: var(--spacing-3xl) 0;
}

.contact__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.contact__info {
  max-width: 500px;
}

.contact__intro {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

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

.contact__icon {
  color: var(--color-accent);
  font-size: var(--font-size-xl);
  margin-top: var(--spacing-xs);
}

.contact__form-container {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-lg);
  max-width: 600px;
  padding: var(--spacing-xl);
  width: 100%;
}

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

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.form-control {
  background-color: var(--color-input-bg);
  border: 1px solid var(--color-input-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  padding: var(--spacing-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}

.form-control:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-input-focus);
  outline: none;
}

.error-message {
  color: var(--color-error);
  display: block;
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

@media (min-width: 768px) {
  .contact__content {
    flex-direction: row;
  }
  
  .contact__info {
    flex: 1;
  }
  
  .contact__form-container {
    flex: 1;
  }
}

/* Footer */
.footer {
  background-color: rgba(15, 23, 42, 0.8);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer__main {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer__brand {
  text-align: center;
}

.footer__logo {
  display: inline-block;
  margin-bottom: var(--spacing-md);
}

.footer__slogan {
  color: var(--color-text-secondary);
  font-family: var(--font-heading);
  font-style: italic;
}

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

.footer__nav-title {
  color: var(--color-accent);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
}

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

.footer__nav-list li {
  margin-bottom: var(--spacing-sm);
}

.footer__nav-list a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer__nav-list a:hover {
  color: var(--color-text);
}

.footer__nav-placeholder {
  color: var(--color-text-tertiary);
  cursor: default;
}

.footer__bottom {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  padding-top: var(--spacing-xl);
}

.footer__timeline {
  display: none;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.footer__timeline::before {
  background-color: rgba(0, 0, 0, 0.1);
  content: '';
  height: 1px;
  left: 0;
  position: absolute;
  top: 5px;
  width: 100%;
}

.footer__timeline-node {
  position: relative;
  text-align: center;
  width: 100px;
}

.footer__timeline-dot {
  background-color: var(--color-accent);
  border-radius: 50%;
  display: block;
  height: 10px;
  margin: 0 auto var(--spacing-sm);
  position: relative;
  width: 10px;
  z-index: var(--z-normal);
}

.footer__timeline-label {
  color: var(--color-text-secondary);
  display: block;
  font-size: var(--font-size-sm);
}

.footer__timeline-node::before {
  color: var(--color-accent);
  content: attr(data-year);
  font-size: var(--font-size-sm);
  font-weight: 600;
  left: 50%;
  position: absolute;
  top: -30px;
  transform: translateX(-50%);
}

.footer__copyright {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
  text-align: center;
}

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

@media (min-width: 768px) {
  .footer__main {
    flex-direction: row;
  }
  
  .footer__brand {
    text-align: left;
    width: 25%;
  }
  
  .footer__nav {
    grid-template-columns: repeat(3, 1fr);
    width: 75%;
  }
}

/* Back to Top Button */
.back-to-top {
  align-items: center;
  background-color: var(--color-accent);
  border-radius: 50%;
  bottom: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  color: var(--color-bg);
  display: flex;
  height: 50px;
  justify-content: center;
  opacity: 0;
  position: fixed;
  right: var(--spacing-lg);
  transition: all var(--transition-normal);
  visibility: hidden;
  width: 50px;
  z-index: var(--z-overlay);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover,
.back-to-top:focus {
  background-color: var(--color-accent-light);
  color: var(--color-bg);
  transform: translateY(-5px);
}

/* Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .hero__shape {
    display: none;
  }
}

@media (prefers-color-scheme: light) {
  :root {
    --color-bg: #F8FAFC;
    --color-text: #0F172A;
    --color-text-secondary: rgba(15, 23, 42, 0.7);
    --color-text-tertiary: rgba(15, 23, 42, 0.5);
    --color-card-bg: rgba(226, 232, 240, 0.7);
    --color-card-hover: rgba(226, 232, 240, 0.9);
    --color-input-bg: rgba(255, 255, 255, 0.7);
    --color-input-border: rgba(15, 23, 42, 0.2);
  }
  
  .header {
    background-color: rgba(248, 250, 252, 0.8);
  }
  
  .timeline, 
  .industries, 
  .team, 
  .roadmap {
    background-color: rgba(226, 232, 240, 0.5);
  }
  
  .footer {
    background-color: rgba(226, 232, 240, 0.8);
  }
  
  .section-title--light::after {
    background-color: var(--color-accent);
  }
  
  .roadmap__icon {
    background-color: var(--color-accent);
    color: var(--color-text);
  }
  
  .roadmap__node[data-step]::before {
    background-color: var(--color-bg);
    border-color: var(--color-accent);
    color: var(--color-accent);
  }
}

/* Animation classes */
.fade-in {
  animation: fadeIn var(--transition-slow) forwards;
  opacity: 0;
}

.slide-up {
  animation: slideUp var(--transition-slow) forwards;
  opacity: 0;
  transform: translateY(30px);
}

.slide-in-left {
  animation: slideInLeft var(--transition-slow) forwards;
  opacity: 0;
  transform: translateX(-30px);
}

.slide-in-right {
  animation: slideInRight var(--transition-slow) forwards;
  opacity: 0;
  transform: translateX(30px);
}

/* Keyframes */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

#main-content {
  min-height: calc(100vh - 400px);
}

.thankyou {
  margin: 0 auto;
  max-width: 100%;
  padding: var(--spacing-3xl) 0;
  text-align: center;
  width: 600px;
}

.thankyou__icon {
  color: var(--color-accent);
  font-size: 4rem;
}

.legal {
  padding: var(--spacing-3xl) 0;
}

.legal__title {
  text-align: center;
}

.legal__date {
  color: var(--color-text-secondary);
  font-style: italic;
  text-align: center;
}