:root {
  --font-primary: "Lato", sans-serif;
  --font-secondary: "Montserrat", sans-serif;

  --color-primary: #0d1b2a;
  --color-secondary: #1b263b;
  --color-tertiary: #415a77;
  --color-light: #e0e1dd;
  --color-accent: #62a2f2;
  --color-accent-darker: #4a8ad8;
  --color-white: #ffffff;
  --color-success: #5cb85c;
  --color-text: #e0e1dd;
  --color-text-muted: #a9b4c2;

  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 8px 15px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 15px 30px rgba(0, 0, 0, 0.2);
  --border-radius: 8px;
  --transition-speed: 0.3s;
}

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

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

body {
  background-color: var(--color-primary);
  color: var(--color-text);
  font-family: var(--font-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
}
h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}
h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

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

a:hover,
a:focus {
  color: var(--color-accent-darker);
}

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

ul {
  list-style: none;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

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

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

.section-title {
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.section-intro {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  border-radius: var(--border-radius);
  font-family: var(--font-secondary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  text-align: center;
}

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

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

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

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

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

.btn-accent:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
  transform: scale(1.05);
}

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-accent);
  color: var(--color-primary);
  padding: 1rem;
  z-index: 9999;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}

.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  background-color: rgba(13, 27, 42, 0.8);
  backdrop-filter: blur(10px);
  transition: background-color var(--transition-speed) ease,
    padding var(--transition-speed) ease;
}

.header-scrolled {
  background-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  padding: 0.5rem 0;
}

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

.logo-text {
  font-family: var(--font-secondary);
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--color-white);
}

.logo-text strong {
  color: var(--color-accent);
  font-weight: 900;
}

.nav-list {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--color-light);
  font-family: var(--font-secondary);
  font-weight: 500;
  font-size: 1rem;
  position: relative;
  padding: 0.5rem 0;
}

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

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.8rem;
  cursor: pointer;
}

.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 0 4rem;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    0deg,
    var(--color-primary) 0%,
    rgba(13, 27, 42, 0.6) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  color: var(--color-white);
  text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-light);
  margin: 1.5rem 0 2.5rem;
  font-weight: 300;
}

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

section {
  padding: 6rem 0;
}

section:nth-of-type(odd) {
  background-color: var(--color-secondary);
}

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

.description-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin-top: 4rem;
}

.description-item {
  background-color: var(--color-secondary);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  text-align: center;
  border: 1px solid var(--color-tertiary);
  transition: transform var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease;
}

.description-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.item-icon {
  font-size: 3rem;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.item-title {
  margin-bottom: 1rem;
}

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

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

.advantages-list {
  margin-top: 2rem;
  margin-bottom: 2.5rem;
}

.advantage-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.advantage-item i {
  color: var(--color-accent);
  font-size: 1.5rem;
}

.advantages-image-column .responsive-img {
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.case-study-card {
  background-color: var(--color-secondary);
  border-radius: var(--border-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease;
}

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

.card-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

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

.card-title {
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.card-excerpt {
  color: var(--color-text-muted);
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.read-more-link {
  font-family: var(--font-secondary);
  font-weight: 700;
  color: var(--color-accent);
  align-self: flex-start;
}

.read-more-link i {
  margin-left: 0.5rem;
  transition: transform var(--transition-speed) ease;
}

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

.mission-vision-section {
  background: linear-gradient(
    45deg,
    var(--color-tertiary),
    var(--color-secondary)
  );
}

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

.mission-box,
.vision-box {
  padding: 3rem;
  background-color: rgba(13, 27, 42, 0.5);
  border-radius: var(--border-radius);
  border-left: 5px solid var(--color-accent);
}

.box-icon {
  font-size: 2.5rem;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.box-title {
  margin-bottom: 1rem;
}

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

.team-member-card {
  background-color: var(--color-secondary);
  padding: 2rem;
  text-align: center;
  border-radius: var(--border-radius);
  transition: all var(--transition-speed) ease;
  border: 1px solid transparent;
}

.team-member-card:hover {
  border-color: var(--color-accent);
  transform: scale(1.05);
}

.member-icon {
  font-size: 4rem;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.member-name {
  margin-bottom: 0.25rem;
}

.member-role {
  color: var(--color-accent);
  font-family: var(--font-secondary);
  font-weight: 500;
  margin-bottom: 1rem;
}

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

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

.testimonials-slider {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  min-height: 300px;
}

.testimonial-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s ease, visibility 0.6s ease;
  text-align: center;
}

.testimonial-slide.active {
  opacity: 1;
  visibility: visible;
  position: relative;
}

.testimonial-quote {
  font-size: 1.4rem;
  font-style: italic;
  font-weight: 300;
  line-height: 1.6;
  margin-bottom: 2rem;
  position: relative;
}

.testimonial-quote::before {
  content: "\f10d";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--color-accent);
  font-size: 2rem;
  position: absolute;
  top: -1rem;
  left: 50%;
  transform: translateX(-50%);
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

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

.author-name {
  font-family: var(--font-secondary);
  font-weight: 700;
}

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

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

.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  border-top: 1px solid var(--color-tertiary);
}

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

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 1.5rem;
  text-align: left;
  font-family: var(--font-secondary);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-white);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question i {
  transition: transform var(--transition-speed) ease;
}

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

.faq-answer p {
  padding: 0 1.5rem 1.5rem;
  color: var(--color-text-muted);
}

.faq-item.active .faq-answer {
  max-height: 300px;
  transition: max-height 0.5s ease-in;
}

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

.faq-more-link {
  margin-top: 3rem;
}

.cta-section {
  background: linear-gradient(rgba(13, 27, 42, 0.9), rgba(13, 27, 42, 0.9)),
    url("../media/cta-background.png") no-repeat center center/cover;
  text-align: center;
}

.cta-icon img {
  width: 100px;
  margin: 0 auto 2rem;
}

.cta-title {
  max-width: 700px;
  margin: 0 auto 1.5rem;
}

.cta-text {
  max-width: 700px;
  margin: 0 auto 2.5rem;
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

.cta-form {
  display: flex;
  gap: 1rem;
  justify-content: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-form .form-group {
  flex-grow: 1;
}

.cta-form input[type="email"] {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--color-tertiary);
  border-radius: var(--border-radius);
  background-color: var(--color-secondary);
  color: var(--color-white);
  font-size: 1rem;
}

.cta-form input[type="email"]:focus {
  outline: none;
  border-color: var(--color-accent);
}

.thank-you-message {
  padding: 2rem;
  background-color: var(--color-success);
  color: var(--color-white);
  border-radius: var(--border-radius);
  max-width: 600px;
  margin: 0 auto;
}

.cta-terms {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.main-footer {
  background-color: var(--color-primary);
  padding: 5rem 0 2rem;
  border-top: 5px solid var(--color-accent);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-logo {
  font-family: var(--font-secondary);
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer-logo strong {
  color: var(--color-accent);
  font-weight: 900;
}

.footer-mission {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.social-links a {
  color: var(--color-light);
  font-size: 1.5rem;
  margin-right: 1.5rem;
}

.social-links a:hover {
  color: var(--color-accent);
  transform: scale(1.2);
}

.footer-heading {
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 1.1rem;
}

.footer-links ul li {
  margin-bottom: 0.8rem;
}

.footer-links ul li a {
  color: var(--color-text-muted);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--color-tertiary);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-bottom p:first-child {
  margin-bottom: 0.5rem;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-primary);
  box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.2);
  z-index: 1001;
  padding: 1.5rem 0;
}

.cookie-banner-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.cookie-banner p {
  margin: 0;
}

.fade-in-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

@media (max-width: 992px) {
  .advantages-content {
    grid-template-columns: 1fr;
  }
  .advantages-image-column {
    order: -1;
    margin-bottom: 2rem;
  }
  .mission-vision-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-list {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-primary);
    flex-direction: column;
    align-items: center;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-in-out;
  }
  .nav-list.is-open {
    max-height: 500px;
  }
  .nav-item {
    width: 100%;
    text-align: center;
  }
  .nav-link {
    display: block;
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-secondary);
  }
  .nav-link::after {
    display: none;
  }
  .menu-toggle {
    display: block;
    z-index: 1001;
  }
  .header-actions {
    display: none;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtitle {
    font-size: 1.1rem;
  }
  .cta-form {
    flex-direction: column;
  }
  .cookie-banner-content {
    flex-direction: column;
    text-align: center;
  }
}