:root {
  --font-primary: "Inter", sans-serif;
  --font-headings: "Playfair Display", serif;

  --color-background: #fdfdfd;
  --color-surface: #ffffff;
  --color-surface-alt: #f4f6f8;
  --color-primary: #0d47a1;
  --color-primary-dark: #0a3a82;
  --color-secondary: #ff8f00;
  --color-secondary-dark: #e68100;
  --color-text: #212121;
  --color-text-muted: #616161;
  --color-border: #e0e0e0;
  --color-white: #ffffff;
  --color-black: #000000;

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);

  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;

  --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 600ms cubic-bezier(0.4, 0, 0.2, 1);

  --container-width: 1240px;
  --container-padding: 2rem;
}

*,
*::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(--color-background);
  color: var(--color-text);
  line-height: 1.65;
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-headings);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
}
h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}
h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}
h4 {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
}

p {
  margin-bottom: 1rem;
  color: var(--color-text-muted);
}

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

a:hover {
  color: var(--color-primary-dark);
}

ul {
  list-style: none;
}

.section-header {
  margin-bottom: 4rem;
}

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

.section-tagline {
  display: block;
  font-family: var(--font-primary);
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.875rem;
}

.section-intro {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.125rem;
}

.btn {
  display: inline-block;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--border-radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-medium);
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--color-secondary-dark);
  color: var(--color-black);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

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

.btn-tertiary:hover {
  background-color: var(--color-surface-alt);
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}
.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
}
.btn-xl {
  padding: 1.25rem 3rem;
  font-size: 1.25rem;
}

.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-medium);
}

.main-header.scrolled {
  padding: 0.75rem 0;
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

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

.logo {
  font-family: var(--font-headings);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary);
}

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

.logo i {
  margin-right: 0.5rem;
  color: var(--color-secondary);
}

.main-navigation .nav-list {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: 0.5rem 0;
}

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

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

.nav-item.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--color-surface);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem 0;
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-medium);
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--color-text);
  font-weight: 500;
  white-space: nowrap;
}

.dropdown-item:hover {
  background-color: var(--color-surface-alt);
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

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

main {
  padding-top: 80px;
}

[class*="-section"] {
  padding: 6rem 0;
}

.hero-section {
  position: relative;
  color: var(--color-white);
  min-height: 90vh;
  display: flex;
  align-items: center;
  text-align: center;
  overflow: hidden;
}

.hero-background-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
}

.hero-background-image::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    45deg,
    rgba(13, 71, 161, 0.85),
    rgba(0, 0, 0, 0.7)
  );
  z-index: -1;
}

.hero-background-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  z-index: 1;
}

.hero-title {
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto 2.5rem auto;
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero-cta-group .btn-tertiary {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}
.hero-cta-group .btn-tertiary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}
.hero-cta-group i {
  margin-left: 0.5rem;
}

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

.description-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.description-card {
  background-color: var(--color-surface);
  padding: 2.5rem;
  border-radius: var(--border-radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
  border: 1px solid var(--color-border);
}

.description-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.description-card .card-icon {
  font-size: 3rem;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

.description-card .card-title {
  margin-bottom: 1rem;
}

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

.advantages-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.advantages-image-panel img {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.advantages-list {
  margin-top: 2rem;
  margin-bottom: 2rem;
}

.advantages-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.advantages-list i {
  color: var(--color-secondary);
  font-size: 1.5rem;
  margin-top: 0.125rem;
}

.case-studies-section {
  background-color: var(--color-surface-alt);
}

.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.case-study-card {
  background-color: var(--color-surface);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-medium);
  display: flex;
  flex-direction: column;
}

.case-study-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.case-study-image-wrapper img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.case-study-content {
  padding: 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.case-study-category {
  font-family: var(--font-primary);
  font-weight: 600;
  color: var(--color-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

.case-study-title {
  margin-bottom: 1rem;
  font-size: 1.35rem;
}

.case-study-excerpt {
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.read-more-link {
  font-weight: 600;
  color: var(--color-primary);
}

.read-more-link i {
  margin-left: 0.25rem;
  transition: transform var(--transition-fast);
}

.read-more-link:hover i {
  transform: translateX(5px);
}

.mission-vision-section {
  background: linear-gradient(
    45deg,
    var(--color-primary),
    var(--color-primary-dark)
  );
  color: var(--color-white);
}

.mission-vision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.mission-card,
.vision-card {
  padding: 3rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(5px);
}

.mission-card .card-title,
.vision-card .card-title {
  color: var(--color-white);
}

.mission-card .section-tagline,
.vision-card .section-tagline {
  color: var(--color-secondary);
}

.mission-card .card-text,
.vision-card .card-text {
  color: rgba(255, 255, 255, 0.8);
}

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

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.team-member-card {
  text-align: center;
  padding: 2rem;
}

.team-member-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 1.5rem auto;
  border-radius: 50%;
  background: var(--color-surface-alt);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 3rem;
  color: var(--color-primary);
  border: 4px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-primary);
  transition: all var(--transition-medium);
}

.team-member-card:hover .team-member-icon {
  transform: scale(1.1) rotate(5deg);
  background-color: var(--color-primary);
  color: var(--color-white);
}

.team-member-name {
  font-size: 1.25rem;
}

.team-member-role {
  color: var(--color-text-muted);
  font-weight: 500;
}

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

.testimonials-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.testimonial-card {
  background-color: var(--color-surface);
  padding: 2.5rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-quote {
  font-family: var(--font-headings);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 2rem;
  position: relative;
  padding-left: 3rem;
}

.testimonial-quote::before {
  content: "\f10d";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: -0.5rem;
  font-size: 2.5rem;
  color: var(--color-primary);
  opacity: 0.1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: auto;
}

.author-icon {
  font-size: 3rem;
  color: var(--color-text-muted);
}

.author-name {
  margin-bottom: 0;
}

.author-title {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

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

.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  cursor: pointer;
  font-size: 1.125rem;
  font-weight: 600;
  width: 100%;
  background: var(--color-surface);
}
.faq-question::-webkit-details-marker {
  display: none;
}

.faq-icon {
  font-size: 1.25rem;
  color: var(--color-primary);
  transition: transform var(--transition-medium);
}

.faq-item[open] > .faq-question > .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.5rem 1.5rem 1.5rem;
  background-color: var(--color-surface);
}

.cta-section {
  background: url("../media/cta-background.png") no-repeat center center/cover;
  position: relative;
  text-align: center;
  color: var(--color-white);
}

.cta-section::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to top,
    rgba(13, 71, 161, 0.9),
    rgba(13, 71, 161, 0.7)
  );
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-title {
  color: var(--color-white);
  margin-bottom: 1rem;
}

.cta-text {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto 2.5rem auto;
}

.main-footer {
  background-color: #111827;
  color: #9ca3af;
  padding: 5rem 0 2rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-logo {
  color: var(--color-white);
  margin-bottom: 1rem;
  display: inline-block;
}

.footer-about-text {
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.social-media-links a {
  color: #9ca3af;
  font-size: 1.5rem;
  margin-right: 1.5rem;
  transition: all var(--transition-fast);
}

.social-media-links a:hover {
  color: var(--color-white);
  transform: scale(1.1);
}

.footer-column-title {
  font-family: var(--font-primary);
  font-weight: 600;
  color: var(--color-white);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1.5rem;
}

.footer-links-list li {
  margin-bottom: 0.75rem;
}

.footer-links-list a {
  color: #9ca3af;
}

.footer-links-list a:hover {
  color: var(--color-white);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 2rem;
  text-align: center;
  font-size: 0.9rem;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(20, 20, 20, 0.95);
  backdrop-filter: blur(5px);
  color: var(--color-white);
  padding: 1.5rem 0;
  z-index: 2000;
  transform: translateY(100%);
  transition: transform var(--transition-slow);
}

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

.cookie-banner-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.cookie-banner p {
  margin: 0;
  color: #e0e0e0;
}
.cookie-banner p a {
  color: var(--color-secondary);
  font-weight: 600;
  text-decoration: underline;
}
.cookie-banner p a:hover {
  color: var(--color-secondary-dark);
}

.cookie-banner-actions {
  display: flex;
  gap: 1rem;
  flex-shrink: 0;
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .header-container {
    position: relative;
  }
  .main-navigation {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: var(--color-surface);
    box-shadow: var(--shadow-lg);
    padding: 6rem 2rem 2rem;
    transition: right var(--transition-medium);
  }
  .main-navigation.nav-open {
    right: 0;
  }
  .main-navigation .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }
  .nav-toggle {
    display: block;
    z-index: 1001;
  }
  .header-actions {
    display: none;
  }
  .advantages-content {
    grid-template-columns: 1fr;
  }
  .advantages-image-panel {
    order: -1;
  }
  .mission-vision-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
  }
  h1 {
    font-size: 2.2rem;
  }
  h2 {
    font-size: 1.8rem;
  }
  [class*="-section"] {
    padding: 4rem 0;
  }
  .hero-section {
    min-height: 80vh;
  }
  .hero-subtitle {
    font-size: 1.1rem;
  }
  .hero-cta-group {
    flex-direction: column;
  }
  .cookie-banner-content {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-about .social-media-links {
    justify-content: center;
  }
  .social-media-links a:last-child {
    margin-right: 0;
  }
}