:root {
  --color-primary: #1ED24B;
  --color-secondary: #219C7D;
  --color-accent: #87F263;
  --color-success: #059669;
  --color-warning: #D97706;
  --color-error: #DC2626;
  --color-neutral: #F8FAFC;
  --color-text: #111827;
  --color-text-muted: #6C757D;
  --color-section-dark: #1a3d2e;
  --color-section-accent: #f0fdf4;
  --primary-rgb: 30, 210, 75;
  --secondary-rgb: 33, 156, 125;
  --accent-rgb: 135, 242, 99;

  --font-primary: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: Georgia, 'Times New Roman', serif;

  --spacing-xs: 10px;
  --spacing-sm: 16px;
  --spacing-md: 26px;
  --spacing-lg: 42px;
  --spacing-xl: 68px;
  --spacing-xxl: 110px;

  --font-xs: 14px;
  --font-sm: 17px;
  --font-base: 20px;
  --font-lg: 24px;
  --font-xl: 29px;
  --font-xxl: 35px;
  --font-hero: 42px;

  --max-width: 1140px;
  --gutter: 30px;
  --border-radius: 4px;
  --transition-speed: 0.3s;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: #ffffff;
  color: var(--color-text);
  font-family: var(--font-primary);
  font-size: var(--font-base);
  font-weight: 400;
  line-height: 1.5;
  margin: 0;
  padding: 0;
}

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

h1 {
  font-size: var(--font-hero);
}

h2 {
  font-size: var(--font-xxl);
}

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

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

h5, h6 {
  font-size: var(--font-base);
}

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

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

a:hover {
  color: var(--color-secondary);
}

img {
  border-radius: var(--border-radius);
  display: block;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

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

.container {
  margin-left: auto;
  margin-right: auto;
  max-width: var(--max-width);
  padding-left: var(--gutter);
  padding-right: var(--gutter);
  width: 100%;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin-left: calc(var(--gutter) / -2);
  margin-right: calc(var(--gutter) / -2);
}

.row > * {
  padding-left: calc(var(--gutter) / 2);
  padding-right: calc(var(--gutter) / 2);
}

.grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.grid-2 {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.grid-2 > * {
  flex: 1 1 calc(50% - var(--spacing-lg));
  min-width: 280px;
}

.grid-3 {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.grid-3 > * {
  flex: 1 1 calc(33.333% - var(--spacing-lg));
  min-width: 260px;
}

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

.grid-4 > * {
  flex: 1 1 calc(25% - var(--spacing-lg));
  min-width: 240px;
}

.navbar {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  left: 0;
  padding: var(--spacing-md) 0;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 1000;
}

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

.logo {
  color: var(--color-text);
  font-size: var(--font-xl);
  font-weight: 700;
  transition: color var(--transition-speed) ease;
}

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

.nav-menu {
  align-items: center;
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin: 0;
}

.nav-link {
  border-bottom: 2px solid transparent;
  color: var(--color-text);
  display: inline-block;
  font-size: var(--font-sm);
  font-weight: 600;
  padding: var(--spacing-xs) 0;
  position: relative;
  transition: all var(--transition-speed) ease;
}

.nav-link:hover,
.nav-link.active {
  border-bottom-color: var(--color-primary);
  color: var(--color-primary);
}

.mobile-menu-toggle {
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  display: none;
  font-size: var(--font-xl);
  padding: var(--spacing-xs);
}

.mobile-menu-toggle:hover {
  color: var(--color-primary);
}

.main-nav {
  transition: transform var(--transition-speed) ease;
}

.hero {
  align-items: center;
  background: linear-gradient(135deg, rgba(30, 210, 75, 0.95) 0%, rgba(33, 156, 125, 0.95) 100%);
  display: flex;
  margin-top: 80px;
  min-height: 600px;
  padding: var(--spacing-xxl) 0;
  position: relative;
}

.hero::before {
  animation: float 6s ease-in-out infinite;
  background: radial-gradient(circle, rgba(135, 242, 99, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  content: '';
  height: 400px;
  position: absolute;
  right: -100px;
  top: -100px;
  width: 400px;
  z-index: 0;
}

.hero::after {
  animation: float 8s ease-in-out infinite reverse;
  background: radial-gradient(circle, rgba(33, 156, 125, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  bottom: -50px;
  content: '';
  height: 300px;
  left: -50px;
  position: absolute;
  width: 300px;
  z-index: 0;
}

.hero-content {
  position: relative;
  text-align: center;
  z-index: 1;
}

.hero h1 {
  color: #ffffff;
  font-size: var(--font-hero);
  margin-bottom: var(--spacing-lg);
}

.hero p {
  color: #ffffff;
  font-size: var(--font-lg);
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

.header-hero {
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  display: flex;
  margin-top: 80px;
  min-height: 300px;
  padding: var(--spacing-xl) 0;
  position: relative;
}

.header-hero h1 {
  color: #ffffff;
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.header-hero p {
  color: #ffffff;
  font-size: var(--font-lg);
  opacity: 0.95;
  text-align: center;
}

.content-section {
  padding: var(--spacing-xxl) 0;
}

.section-dark {
  background-color: var(--color-section-dark);
  color: #ffffff;
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: #ffffff;
}

.section-dark p {
  color: rgba(255, 255, 255, 0.9);
}

.section-dark a {
  color: var(--color-accent);
}

.section-dark a:hover {
  color: #ffffff;
}

.section-accent {
  background-color: var(--color-section-accent);
}

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

.section-header h2 {
  margin-bottom: var(--spacing-md);
}

.section-header p {
  color: var(--color-text-muted);
  font-size: var(--font-lg);
  margin-bottom: 0;
}

.card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: var(--border-radius);
  display: flex;
  flex-direction: column;
  padding: var(--spacing-lg);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  transform: translateY(-8px);
}

.card img {
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
  object-fit: cover;
  width: 100%;
}

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

.card p {
  color: var(--color-text-muted);
  flex-grow: 1;
  margin-bottom: var(--spacing-md);
}

.feature {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  text-align: center;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.feature:hover {
  border-color: var(--color-primary);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  transform: translateY(-8px);
}

.feature-icon {
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 50%;
  color: #ffffff;
  display: flex;
  font-size: var(--font-xxl);
  height: 80px;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  width: 80px;
}

.feature h3 {
  margin-bottom: var(--spacing-sm);
}

.feature p {
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.testimonial-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-left: 4px solid var(--color-primary);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  transition: all var(--transition-speed) ease;
}

.testimonial-card:hover {
  border-left-color: var(--color-secondary);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.testimonial-card p {
  color: var(--color-text);
  font-size: var(--font-lg);
  font-style: italic;
  margin-bottom: var(--spacing-md);
}

.testimonial-card .author {
  color: var(--color-text-muted);
  font-size: var(--font-sm);
  font-style: normal;
  font-weight: 600;
  margin-bottom: 0;
}

.pricing-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: var(--border-radius);
  display: flex;
  flex-direction: column;
  padding: var(--spacing-xl);
  text-align: center;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.pricing-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  transform: translateY(-8px);
}

.pricing-card.featured {
  border: 2px solid var(--color-primary);
}

.pricing-card h3 {
  margin-bottom: var(--spacing-md);
}

.pricing-card .price {
  color: var(--color-primary);
  font-size: var(--font-hero);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.pricing-card ul {
  flex-grow: 1;
  list-style: none;
  margin-bottom: var(--spacing-lg);
  padding: 0;
  text-align: left;
}

.pricing-card li {
  border-bottom: 1px solid #e5e7eb;
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}

.pricing-card li:last-child {
  border-bottom: none;
}

.two-col-layout {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
}

.two-col-layout > * {
  flex: 1 1 calc(50% - var(--spacing-xl));
  min-width: 300px;
}

.two-col-layout.reverse {
  flex-direction: row-reverse;
}

.two-col-layout img {
  border-radius: var(--border-radius);
  height: auto;
  width: 100%;
}

.btn {
  background: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--border-radius);
  color: #ffffff;
  cursor: pointer;
  display: inline-block;
  font-size: var(--font-base);
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-lg);
  text-align: center;
  text-decoration: none;
  transition: all var(--transition-speed) ease;
}

.btn:hover {
  background: var(--color-secondary);
  border-color: var(--color-secondary);
  box-shadow: 0 8px 25px rgba(30, 210, 75, 0.4);
  color: #ffffff;
  transform: translateY(-2px);
}

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

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

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

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

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

.btn-outline:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.btn-lg {
  font-size: var(--font-lg);
  padding: var(--spacing-md) var(--spacing-xl);
}

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

.text-muted {
  color: var(--color-text-muted);
}

.section-divider {
  display: block;
  height: auto;
  line-height: 0;
  margin: -1px 0;
  width: 100%;
}

.section-divider svg {
  display: block;
  height: 60px;
  width: 100%;
}

.section-divider.flip {
  transform: scaleY(-1);
}

[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

[data-animate="fade-in"] {
  transform: none;
}

[data-animate="fade-in"].visible {
  opacity: 1;
}

[data-animate="slide-left"] {
  transform: translateX(-30px);
}

[data-animate="slide-left"].visible {
  opacity: 1;
  transform: translateX(0);
}

[data-animate="slide-right"] {
  transform: translateX(30px);
}

[data-animate="slide-right"].visible {
  opacity: 1;
  transform: translateX(0);
}

[data-stagger] > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

[data-stagger] > *.visible {
  opacity: 1;
  transform: translateY(0);
}

form {
  margin: 0;
}

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

label {
  color: var(--color-text);
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="password"],
textarea,
select {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: var(--border-radius);
  color: var(--color-text);
  display: block;
  font-family: var(--font-primary);
  font-size: var(--font-base);
  padding: var(--spacing-sm);
  transition: border-color var(--transition-speed) ease;
  width: 100%;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
  border-color: var(--color-primary);
  outline: none;
}

textarea {
  min-height: 150px;
  resize: vertical;
}

footer {
  background-color: var(--color-section-dark);
  color: #ffffff;
  padding: var(--spacing-xl) 0;
}

footer.footer-minimal {
  background: var(--color-neutral);
  border-top: 1px solid #e5e7eb;
  color: var(--color-text);
  padding: var(--spacing-lg) 0;
  text-align: center;
}

footer.footer-minimal .footer-content {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  justify-content: center;
}

footer.footer-minimal .footer-links {
  display: flex;
  gap: var(--spacing-md);
}

footer.footer-minimal .footer-links a {
  color: var(--color-text-muted);
  font-size: var(--font-sm);
  text-decoration: none;
}

footer.footer-minimal .footer-links a:hover {
  color: var(--color-primary);
}

footer.footer-minimal p {
  color: var(--color-text-muted);
  font-size: var(--font-sm);
  margin: 0;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

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

@keyframes shimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

@media screen and (max-width: 960px) {
  :root {
    --font-hero: 35px;
    --font-xxl: 29px;
    --font-xl: 24px;
  }

  .grid-2 > *,
  .grid-3 > *,
  .grid-4 > * {
    flex: 1 1 calc(50% - var(--spacing-lg));
  }

  .two-col-layout > * {
    flex: 1 1 100%;
  }

  .two-col-layout.reverse {
    flex-direction: column;
  }
}

@media screen and (max-width: 720px) {
  .mobile-menu-toggle {
    display: block;
    position: absolute;
    right: 20px;
    top: 20px;
    z-index: 1000;
  }

  .main-nav {
    transform: translateX(-100%);
  }

  body.menu-open .main-nav {
    transform: translateX(0);
  }

  .nav-menu {
    background: white;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    flex-direction: column;
    left: 0;
    padding: var(--spacing-xl) var(--spacing-lg);
    position: absolute;
    top: 60px;
    width: 100%;
    z-index: 999;
  }

  .nav-item {
    border-bottom: 1px solid #e5e7eb;
    text-align: center;
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .grid-2 > *,
  .grid-3 > *,
  .grid-4 > * {
    flex: 1 1 100%;
  }

  .hero {
    min-height: 500px;
    padding: var(--spacing-xl) 0;
  }

  .header-hero {
    min-height: 250px;
  }

  :root {
    --font-hero: 29px;
    --font-xxl: 24px;
    --font-xl: 20px;
  }
}

@media screen and (max-width: 450px) {
  :root {
    --font-hero: 24px;
    --font-xxl: 20px;
    --font-xl: 17px;
    --spacing-xxl: 68px;
    --spacing-xl: 42px;
  }

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

  .hero {
    min-height: 400px;
  }

  .card,
  .feature,
  .testimonial-card,
  .pricing-card {
    padding: var(--spacing-md);
  }
}