:root {
  --primary-color: #4a47a3;
  --secondary-color: #7077a1;
  --accent-color: #ad62aa;
  --background-color: #f9f9f9;
  --surface-color: #ffffff;
  --text-color: #2d3748;
  --heading-color: #1a202c;
  --border-color: #e2e8f0;
  --white-color: #ffffff;
  --success-color: #38a169;
  --shadow-light: rgba(0, 0, 0, 0.05);
  --shadow-dark: rgba(0, 0, 0, 0.1);

  --font-primary: "Poppins", sans-serif;
  --font-secondary: "Roboto Slab", serif;

  --transition-fast: all 0.2s ease-in-out;
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);

  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;

  --container-width: 1200px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 32px;
  --spacing-xl: 64px;
  --spacing-xxl: 128px;
}

[data-theme="dark"] {
  --primary-color: #8b88f2;
  --secondary-color: #8a93c9;
  --accent-color: #c882c4;
  --background-color: #1a202c;
  --surface-color: #2d3748;
  --text-color: #e2e8f0;
  --heading-color: #ffffff;
  --border-color: #4a5568;
  --shadow-light: rgba(255, 255, 255, 0.05);
  --shadow-dark: rgba(0, 0, 0, 0.2);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.7;
  transition: background-color 0.3s, color 0.3s;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-secondary);
  color: var(--heading-color);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}
h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}
h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}
p {
  margin-bottom: var(--spacing-md);
}
a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition-fast);
}
a:hover {
  color: var(--accent-color);
}
ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

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

.section-header {
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
}

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

.section-subtitle {
  font-size: 1.125rem;
  color: var(--secondary-color);
}

.btn {
  display: inline-block;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: var(--border-radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition-smooth);
  text-align: center;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

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

.btn-primary:hover {
  background-color: var(--accent-color);
  color: var(--white-color);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px -10px var(--accent-color);
}

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

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--white-color);
  transform: translateY(-3px);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1.125rem;
}

.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--spacing-md) 0;
  transition: var(--transition-smooth);
  background-color: transparent;
}

.main-header.scrolled {
  background-color: var(--surface-color);
  box-shadow: 0 4px 20px var(--shadow-dark);
  padding: var(--spacing-sm) 0;
}

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

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--heading-color);
  font-family: var(--font-secondary);
}
.logo i {
  color: var(--primary-color);
  margin-right: var(--spacing-sm);
  transition: transform 0.3s;
}
.logo:hover i {
  transform: rotate(15deg);
}

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

.nav-link {
  color: var(--text-color);
  font-weight: 500;
  position: relative;
  padding: var(--spacing-sm) 0;
}

.main-header.scrolled .nav-link {
  color: var(--text-color);
}
.main-header:not(.scrolled) .nav-link {
  color: var(--white-color);
}
[data-theme="dark"] .main-header:not(.scrolled) .nav-link {
  color: var(--text-color);
}
[data-theme="dark"] .main-header:not(.scrolled) .logo {
  color: var(--text-color);
}
body:not([data-theme="dark"]) .main-header:not(.scrolled) .logo {
  color: var(--white-color);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: var(--transition-smooth);
}

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

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

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--heading-color);
  font-size: 1.5rem;
  cursor: pointer;
}

.main-header:not(.scrolled) .hamburger {
  color: var(--white-color);
}
[data-theme="dark"] .main-header:not(.scrolled) .hamburger {
  color: var(--heading-color);
}

.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white-color);
  padding-top: var(--spacing-xxl);
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4) contrast(1.1);
}

.hero-content {
  max-width: 900px;
  animation: fadeInDown 1s ease-out forwards;
}

.hero-title {
  color: var(--white-color);
  margin-bottom: var(--spacing-lg);
  text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

.hero-cta .cta-info {
  margin-top: var(--spacing-sm);
  font-size: 0.9rem;
  opacity: 0.8;
}

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

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

.description-card {
  background-color: var(--background-color);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  transition: var(--transition-smooth);
  transform: translateY(0);
}

.description-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px -10px var(--shadow-dark);
}

.description-card .card-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

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

.video-section {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--accent-color) 100%
  );
  color: var(--white-color);
}

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

.video-title {
  color: var(--white-color);
}

.video-player {
  position: relative;
  cursor: pointer;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.4);
}

.video-thumbnail {
  width: 100%;
  display: block;
  transition: transform 0.5s ease;
}

.video-player:hover .video-thumbnail {
  transform: scale(1.05);
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 5rem;
  color: rgba(255, 255, 255, 0.9);
  transition: var(--transition-fast);
}

.video-player:hover .play-button {
  transform: translate(-50%, -50%) scale(1.1);
  color: var(--white-color);
}

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

.freelancer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  align-items: center;
  gap: var(--spacing-xl);
}

.freelancer-image img {
  width: 100%;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 25px var(--shadow-dark);
}

.feature-list {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.feature-list i {
  color: var(--success-color);
  margin-right: var(--spacing-md);
  margin-top: 4px;
  font-size: 1.2rem;
}

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

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

.mission-card,
.vision-card {
  padding: var(--spacing-xl);
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  text-align: center;
  border: 1px solid var(--border-color);
  box-shadow: 0 5px 15px var(--shadow-light);
}

.card-icon-large {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: var(--primary-color);
}

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

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

.team-member {
  text-align: center;
  padding: var(--spacing-lg);
  background-color: var(--background-color);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  transition: var(--transition-smooth);
}

.team-member:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 20px -5px var(--shadow-dark);
}

.member-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto var(--spacing-md);
  border-radius: 50%;
  background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--white-color);
}

.member-name {
  margin-bottom: var(--spacing-xs);
}

.member-role {
  color: var(--secondary-color);
  font-size: 0.9rem;
  font-weight: 500;
}

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

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--spacing-lg);
}

.testimonial-card {
  background: var(--surface-color);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color);
  box-shadow: 0 5px 20px var(--shadow-light);
}

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

.testimonial-card .user-icon {
  font-size: 3rem;
  color: var(--secondary-color);
  margin-right: var(--spacing-md);
}

.user-name {
  margin: 0;
}

.user-title {
  margin: 0;
  font-size: 0.9rem;
  color: var(--secondary-color);
}

.testimonial-quote p {
  font-style: italic;
  font-size: 1.05rem;
  margin: 0;
  position: relative;
  padding-left: var(--spacing-lg);
}

.testimonial-quote p::before {
  content: "“";
  font-family: "Times New Roman", Times, serif;
  position: absolute;
  left: 0;
  top: -10px;
  font-size: 3rem;
  color: var(--primary-color);
  opacity: 0.5;
}

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

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

.faq-item {
  border-bottom: 1px solid var(--border-color);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) 0;
  text-align: left;
  font-family: var(--font-primary);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--heading-color);
  cursor: pointer;
}

.faq-question i {
  transition: transform 0.3s ease;
  color: var(--primary-color);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.faq-answer p {
  padding-bottom: var(--spacing-lg);
  font-size: 1rem;
  line-height: 1.8;
}

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

.cta-section {
  background-color: var(--primary-color);
  background-image: linear-gradient(
    45deg,
    var(--primary-color) 0%,
    var(--secondary-color) 100%
  );
  color: var(--white-color);
  padding: var(--spacing-xxl) 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -50px;
  left: -50px;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.cta-section::after {
  content: "";
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.cta-image {
  margin-bottom: var(--spacing-lg);
}

.cta-image img {
  max-width: 150px;
}

.cta-title {
  color: var(--white-color);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.cta-text {
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

.cta-section .btn-primary {
  background: var(--white-color);
  color: var(--primary-color);
}

.cta-section .btn-primary:hover {
  background: var(--background-color);
  color: var(--heading-color);
  box-shadow: 0 10px 20px -10px rgba(0, 0, 0, 0.3);
}

.main-footer {
  background-color: var(--heading-color);
  color: #a0aec0;
  padding-top: var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
}

.footer-heading {
  color: var(--white-color);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: var(--spacing-lg);
}

.footer-about p {
  font-size: 0.9rem;
  margin-bottom: var(--spacing-lg);
}

.social-links a {
  color: #a0aec0;
  font-size: 1.25rem;
  margin-right: var(--spacing-md);
}

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

.footer-links ul li,
.footer-legal ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a,
.footer-legal a {
  color: #a0aec0;
  font-size: 0.9rem;
}

.footer-links a:hover,
.footer-legal a:hover {
  color: var(--white-color);
  padding-left: var(--spacing-sm);
}

.newsletter-form {
  display: flex;
  position: relative;
}

.newsletter-form input {
  width: 100%;
  padding: 12px 50px 12px 16px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--surface-color);
  color: var(--text-color);
}

.newsletter-form button {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--primary-color);
  color: var(--white-color);
  border: none;
  border-radius: var(--border-radius-sm);
  width: 36px;
  height: 36px;
  font-size: 1rem;
  cursor: pointer;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-lg) 0;
  text-align: center;
  font-size: 0.85rem;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--surface-color);
  color: var(--text-color);
  padding: var(--spacing-md) 0;
  box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.1);
  z-index: 2000;
  transform: translateY(100%);
  transition: transform 0.5s ease-in-out;
}

.cookie-banner.show {
  transform: translateY(0);
}

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

.cookie-content p {
  margin: 0;
}

.cookie-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

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

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

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

@media (max-width: 992px) {
  .nav-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    max-width: 350px;
    height: 100vh;
    background-color: var(--surface-color);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    transition: left 0.4s ease-in-out;
    box-shadow: 10px 0 20px rgba(0, 0, 0, 0.1);
  }
  .nav-menu.active {
    left: 0;
  }
  .nav-link {
    font-size: 1.25rem;
    color: var(--text-color);
  }
  .main-header:not(.scrolled) .nav-link {
    color: var(--text-color);
  }
  .header-actions {
    gap: var(--spacing-sm);
  }
  .header-actions .btn-secondary {
    display: none;
  }
  .hamburger {
    display: block;
    z-index: 1001;
  }
  .hamburger.active i::before {
    content: "\f00d";
  }
  .video-wrapper {
    grid-template-columns: 1fr;
  }
  .video-content {
    text-align: center;
  }
  .mission-vision-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  section {
    padding: var(--spacing-xl) 0;
  }
  .freelancer-content {
    text-align: center;
  }
  .feature-list {
    text-align: left;
  }
  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .header-actions .btn-primary {
    display: none;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtitle {
    font-size: 1.1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .social-links {
    justify-content: center;
  }
  .newsletter-form {
    max-width: 300px;
    margin: 0 auto;
  }
}