:root {
  --primary-color-light: #0a4d68;
  --secondary-color-light: #088395;
  --background-color-light: #f8f9fa;
  --surface-color-light: #ffffff;
  --text-color-light: #212529;
  --subtle-text-color-light: #6c757d;
  --border-color-light: #dee2e6;
  --accent-color-light: #ff7f50;
  --success-color-light: #28a745;

  --primary-color-dark: #5eead4;
  --secondary-color-dark: #67e8f9;
  --background-color-dark: #0f172a;
  --surface-color-dark: #1e293b;
  --text-color-dark: #e2e8f0;
  --subtle-text-color-dark: #94a3b8;
  --border-color-dark: #334155;
  --accent-color-dark: #fb923c;
  --success-color-dark: #4ade80;
}

[data-theme="light"] {
  --primary-color: var(--primary-color-light);
  --secondary-color: var(--secondary-color-light);
  --background-color: var(--background-color-light);
  --surface-color: var(--surface-color-light);
  --text-color: var(--text-color-light);
  --subtle-text-color: var(--subtle-text-color-light);
  --border-color: var(--border-color-light);
  --accent-color: var(--accent-color-light);
  --success-color: var(--success-color-light);
}

[data-theme="dark"] {
  --primary-color: var(--primary-color-dark);
  --secondary-color: var(--secondary-color-dark);
  --background-color: var(--background-color-dark);
  --surface-color: var(--surface-color-dark);
  --text-color: var(--text-color-dark);
  --subtle-text-color: var(--subtle-text-color-dark);
  --border-color: var(--border-color-dark);
  --accent-color: var(--accent-color-dark);
  --success-color: var(--success-color-dark);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --primary-color: var(--primary-color-dark);
    --secondary-color: var(--secondary-color-dark);
    --background-color: var(--background-color-dark);
    --surface-color: var(--surface-color-dark);
    --text-color: var(--text-color-dark);
    --subtle-text-color: var(--subtle-text-color-dark);
    --border-color: var(--border-color-dark);
    --accent-color: var(--accent-color-dark);
    --success-color: var(--success-color-dark);
  }
}

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

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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
    "Segoe UI Symbol";
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

h1,
h2,
h3,
h4 {
  color: var(--text-color);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.5px;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

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: 1.5rem;
  color: var(--subtle-text-color);
  max-width: 75ch;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease-in-out;
}

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

ul {
  list-style: none;
  padding-left: 0;
}

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

section {
  padding: 6rem 0;
}

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

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.125rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.divider {
  height: 1px;
  background-color: var(--border-color);
  border: 0;
  width: 80%;
  max-width: 1240px;
  margin: 0 auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.main-header {
  width: 100%;
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: color-mix(
    in srgb,
    var(--background-color) 80%,
    transparent
  );
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: box-shadow 0.3s ease;
  border-bottom: 1px solid transparent;
}

.main-header.scrolled {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  border-bottom-color: var(--border-color);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-color);
}

.logo:hover {
  text-decoration: none;
  color: var(--primary-color);
}

.logo-icon {
  color: var(--primary-color);
  transition: transform 0.3s ease;
}

.logo:hover .logo-icon {
  transform: rotate(15deg);
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 2rem;
}

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

.main-nav a:hover {
  color: var(--text-color);
  text-decoration: none;
}

.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease-out;
}

.main-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.cta-button {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.cta-button.primary-cta,
.cta-button.header-cta {
  background-color: var(--primary-color);
  color: var(--background-color);
}

.cta-button.primary-cta:hover,
.cta-button.header-cta:hover {
  background-color: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px
    color-mix(in srgb, var(--primary-color) 40%, transparent);
  text-decoration: none;
}

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

.cta-button.secondary-cta:hover {
  background-color: var(--primary-color);
  color: var(--background-color);
  text-decoration: none;
}

.hero-section {
  padding: 4rem 0 8rem 0;
}

.hero-section .container {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 4rem;
  text-align: center;
}

.hero-content .subtitle {
  font-size: 1.25rem;
  margin: 1.5rem auto 2.5rem auto;
  max-width: 700px;
}

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

.hero-image img {
  border-radius: 16px;
  box-shadow: 0 20px 40px -10px color-mix(in srgb, var(--border-color) 50%, transparent);
  max-width: 600px;
  margin: 0 auto;
}

.influence-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.influence-card {
  background-color: var(--surface-color);
  padding: 2.5rem;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.influence-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px -5px color-mix(in srgb, var(--border-color) 50%, transparent);
}

.influence-card .card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: color-mix(in srgb, var(--primary-color) 15%, transparent);
  border-radius: 12px;
}

.influence-card .card-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary-color);
}

.influence-card h3 {
  margin-bottom: 1rem;
}

.influence-card p {
  margin-bottom: 1.5rem;
}

.influence-card ul {
  list-style: none;
  padding: 0;
}

.influence-card ul li {
  padding-left: 2rem;
  position: relative;
  margin-bottom: 0.75rem;
  color: var(--subtle-text-color);
}

.influence-card ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 700;
  color: var(--secondary-color);
}

.interactive-section .tabs-container {
  max-width: 1000px;
  margin: 0 auto;
}

.tabs-nav {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border-color);
}

.tab-link {
  padding: 1rem 2rem;
  border: none;
  background-color: transparent;
  cursor: pointer;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--subtle-text-color);
  position: relative;
  transition: color 0.3s ease;
}

.tab-link::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--primary-color);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.tab-link.active,
.tab-link:hover {
  color: var(--primary-color);
}

.tab-link.active::after {
  transform: scaleX(1);
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s ease-in-out;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tab-content h3 {
  text-align: center;
  margin-bottom: 2rem;
}

.tab-content .content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.tab-content h4 {
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.tab-content .tab-image {
  border-radius: 12px;
  margin-top: 3rem;
}

.accordion {
  max-width: 800px;
  margin: 0 auto;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

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

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-header {
  width: 100%;
  background-color: var(--surface-color);
  border: none;
  padding: 1.5rem 2rem;
  text-align: left;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-color);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.2s ease;
}

.accordion-header:hover {
  background-color: color-mix(in srgb, var(--border-color) 30%, transparent);
}

.accordion-icon {
  width: 24px;
  height: 24px;
  color: var(--subtle-text-color);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.22, 1, 0.36, 1), padding 0.4s ease;
  background-color: var(--background-color);
  padding: 0 2rem;
}

.accordion-item.active .accordion-content {
  padding: 2rem 2rem;
}

.accordion-content p {
  margin-bottom: 0;
  font-size: 1.05rem;
}

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

.recommendations-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

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

.rec-icon {
  margin: 0 auto 1.5rem auto;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: var(--surface-color);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--primary-color);
}

[data-theme="dark"] .recommendations-section .rec-icon {
  background-color: var(--background-color);
}

.rec-icon svg {
  width: 28px;
  height: 28px;
  color: var(--primary-color);
}

.recommendation-item h4 {
  margin-bottom: 0.75rem;
}

.faq-link-container {
  text-align: center;
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border-color);
}

.faq-link-container p {
  margin-bottom: 1.5rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.testimonial-card {
  background-color: var(--surface-color);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.testimonial-card p {
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  font-style: italic;
  color: var(--text-color);
}

.testimonial-card p::before {
  content: "“";
  font-size: 3rem;
  color: var(--primary-color);
  font-weight: 700;
  line-height: 1;
  display: block;
  margin-bottom: -1rem;
}

.testimonial-card footer {
  font-weight: 600;
  color: var(--subtle-text-color);
  text-align: right;
}

.cta-section {
  background-color: var(--primary-color);
  color: var(--background-color);
  padding: 6rem 0;
  text-align: center;
}

.cta-section h2,
.cta-section p {
  color: var(--background-color);
}

.cta-section p {
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

#simple-registration-form .form-group {
  display: flex;
  justify-content: center;
  max-width: 500px;
  margin: 2.5rem auto 1rem auto;
  gap: 0.5rem;
}

#simple-registration-form input {
  flex-grow: 1;
  padding: 0.8rem 1.2rem;
  border-radius: 8px;
  border: 1px solid var(--border-color-dark);
  font-size: 1rem;
  background-color: var(--surface-color-dark);
  color: var(--text-color-dark);
}

[data-theme="light"] #simple-registration-form input {
  background-color: var(--surface-color-light);
  color: var(--text-color-light);
  border-color: var(--primary-color);
}

#simple-registration-form input::placeholder {
  color: var(--subtle-text-color-dark);
}

[data-theme="light"] #simple-registration-form input::placeholder {
  color: var(--subtle-text-color-light);
}

#simple-registration-form button {
  background-color: var(--accent-color);
  color: var(--background-color-dark);
  border-color: var(--accent-color);
}

#simple-registration-form button:hover {
  background-color: color-mix(in srgb, var(--accent-color) 85%, black);
  box-shadow: 0 4px 15px
    color-mix(in srgb, var(--accent-color) 40%, transparent);
}

.form-terms {
  font-size: 0.875rem;
  opacity: 0.8;
}

.form-terms a {
  color: inherit;
  font-weight: 600;
  text-decoration: underline;
}

#thank-you-message h3 {
  color: var(--background-color);
}

.main-footer {
  background-color: var(--surface-color);
  padding: 5rem 0 2rem 0;
  border-top: 1px solid var(--border-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-column h4 {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  color: var(--text-color);
}

.footer-column p {
  font-size: 0.95rem;
  line-height: 1.6;
}

.footer-column.about .footer-address {
  margin-top: 1.5rem;
}

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

.footer-column.links a {
  color: var(--subtle-text-color);
}

.footer-column.links a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

.social-icons {
  display: flex;
  gap: 1.5rem;
  margin-top: 1rem;
}

.social-icons a {
  color: var(--subtle-text-color);
}

.social-icons a:hover {
  color: var(--primary-color);
  transform: translateY(-2px);
}

.social-icons svg {
  width: 24px;
  height: 24px;
}

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

#cookie-consent-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--surface-color-dark);
  color: var(--text-color-dark);
  padding: 1.5rem 0;
  z-index: 2000;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
  transform: translateY(100%);
  transition: transform 0.5s ease-in-out;
}

[data-theme="light"] #cookie-consent-banner {
  background-color: var(--surface-color-light);
  color: var(--text-color-light);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

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

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

#cookie-consent-banner p {
  margin-bottom: 0;
  flex-grow: 1;
}

#cookie-consent-banner a {
  color: var(--primary-color);
  font-weight: 600;
}

#cookie-consent-accept {
  padding: 0.6rem 1.5rem;
  border-radius: 6px;
  border: none;
  background-color: var(--primary-color);
  color: var(--background-color);
  cursor: pointer;
  font-weight: 600;
  white-space: nowrap;
}

.animated-section {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animated-section.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 992px) {
  .main-nav {
    display: none;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .hero-section .container {
    grid-template-columns: 1.2fr 1fr;
    text-align: left;
  }
  .hero-content {
    padding-right: 2rem;
  }
  .hero-actions {
    justify-content: flex-start;
  }
  .hero-image img {
    margin: 0;
  }
  .influence-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .tab-content .content-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .recommendations-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

@media (min-width: 1200px) {
  .recommendations-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 767px) {
  .cta-button.header-cta {
    display: none;
  }
  h1 {
    font-size: 2.2rem;
  }
  h2 {
    font-size: 1.8rem;
  }
  section {
    padding: 4rem 0;
  }
  #simple-registration-form .form-group {
    flex-direction: column;
    gap: 1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-column.social .social-icons {
    justify-content: center;
  }
}