/* style.css */

:root {
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
    "Segoe UI Symbol";
  --font-secondary: "Georgia", "Times New Roman", serif;

  --color-background: #ffffff;
  --color-surface: #f8f9fa;
  --color-primary: #0d3b66;
  --color-secondary: #3b82f6;
  --color-accent: #ee964b;
  --color-accent-hover: #f4d35e;
  --color-text-primary: #212529;
  --color-text-secondary: #495057;
  --color-border: #dee2e6;
  --color-white: #ffffff;
  --color-success: #28a745;
  --color-shadow: rgba(13, 59, 102, 0.1);

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

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

  --shadow-sm: 0 2px 4px var(--color-shadow);
  --shadow-md: 0 4px 8px var(--color-shadow);
  --shadow-lg: 0 10px 20px var(--color-shadow);

  --transition-fast: 0.2s ease-in-out;
  --transition-medium: 0.4s ease-in-out;

  --container-width: 1200px;
  --container-padding: 0 var(--spacing-md);

  --header-height: 80px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #121212;
    --color-surface: #1e1e1e;
    --color-primary: #e0e0e0;
    --color-secondary: #5da5fb;
    --color-accent: #f9a826;
    --color-accent-hover: #fbc02d;
    --color-text-primary: #f5f5f5;
    --color-text-secondary: #adb5bd;
    --color-border: #343a40;
    --color-white: #ffffff;
    --color-success: #34d399;
    --color-shadow: rgba(0, 0, 0, 0.2);
  }
}

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

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

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

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

h1 {
  font-size: 3.052rem;
}

h2 {
  font-size: 2.441rem;
}

h3 {
  font-size: 1.953rem;
}

h4 {
  font-size: 1.563rem;
}

h5 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
  max-width: 75ch;
}

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

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

ul,
ol {
  list-style-position: inside;
  padding-left: var(--spacing-md);
}

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

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

svg {
  display: inline-block;
  vertical-align: middle;
}

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

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

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
}

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

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

.button {
  display: inline-block;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.button:hover {
  text-decoration: none;
}

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

.button-primary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.button-accent:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

.button-full-width {
  width: 100%;
  display: block;
}

.site-header {
  background-color: var(--color-background);
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  transition: background-color var(--transition-fast);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  }
}

.main-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  text-decoration: none;
}

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

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

.nav-menu li {
  list-style: none;
}

.nav-menu a {
  color: var(--color-text-primary);
  font-weight: 500;
  padding: var(--spacing-sm) 0;
  position: relative;
  text-decoration: none;
}

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

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

.hero-section {
  padding: var(--spacing-xxl) 0;
  background-color: var(--color-surface);
}

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

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  max-width: 60ch;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.hero-benefits {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  opacity: 0.8;
}

.benefit-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.benefit-item svg {
  color: var(--color-secondary);
  width: 20px;
  height: 20px;
}

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

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

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

.solution-card {
  background-color: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.solution-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.solution-card .card-icon {
  margin-bottom: var(--spacing-md);
  color: var(--color-accent);
}

.solution-card .card-icon svg {
  width: 40px;
  height: 40px;
}

.solution-card h3 {
  font-size: 1.4rem;
  color: var(--color-primary);
}

.solution-card p {
  font-size: 0.95rem;
  margin-bottom: var(--spacing-sm);
}

.how-it-works-section {
  background-color: var(--color-surface);
}

.steps-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.steps-container::before {
  content: "";
  position: absolute;
  top: var(--spacing-lg);
  bottom: var(--spacing-lg);
  left: 27px;
  width: 4px;
  background-color: var(--color-border);
  border-radius: 2px;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-lg);
  position: relative;
}

.step-number {
  flex-shrink: 0;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background-color: var(--color-secondary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  border: 4px solid var(--color-surface);
  z-index: 1;
}

.step-content h3 {
  margin-top: var(--spacing-sm);
  color: var(--color-primary);
}

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

.case-study-section .container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.case-study-image img {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.eyebrow-text {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-sm);
}

.case-study-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.case-study-details h4 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xs);
}

blockquote {
  border-left: 4px solid var(--color-accent);
  padding-left: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  font-family: var(--font-secondary);
  font-style: italic;
  font-size: 1.1rem;
}

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

blockquote footer {
  font-style: normal;
  font-size: 0.9rem;
  color: var(--color-text-primary);
  font-family: var(--font-primary);
}

.case-study-results ul {
  list-style-type: none;
  padding-left: 0;
}

.case-study-results li {
  padding-left: var(--spacing-lg);
  position: relative;
  margin-bottom: var(--spacing-sm);
}

.case-study-results li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: bold;
}

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

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.testimonial-card {
  background-color: var(--color-background);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.testimonial-card p {
  flex-grow: 1;
  font-family: var(--font-secondary);
  font-size: 1.05rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-md);
}

.author-info strong {
  display: block;
  color: var(--color-text-primary);
}

.author-info span {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

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

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

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

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

.accordion-header {
  width: 100%;
  background-color: transparent;
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
}

.accordion-header svg {
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.accordion-header[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.accordion-content {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-medium),
    padding var(--transition-medium);
}

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

.cta-section {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-xl) 0;
}

.cta-section h2 {
  color: var(--color-white);
}

.cta-section p {
  color: var(--color-text-secondary);
  opacity: 0.9;
}

@media (prefers-color-scheme: dark) {
  .cta-section {
    background-color: var(--color-surface);
  }
  .cta-section h2 {
    color: var(--color-primary);
  }
  .cta-section p {
    color: var(--color-text-secondary);
  }
}

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

.quick-register-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group input[type="email"],
.form-group input[type="text"] {
  width: 100%;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: 1rem;
  background-color: var(--color-background);
  color: var(--color-text-primary);
}

.form-group input[type="email"]:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

.form-group-terms {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.85rem;
}

.form-group-terms label {
  color: var(--color-text-secondary);
}

.form-group-terms a {
  color: var(--color-secondary);
}

@media (prefers-color-scheme: dark) {
  .form-group-terms label {
    color: var(--color-text-secondary);
  }
  .form-group-terms a {
    color: var(--color-secondary);
  }
}

.form-thank-you {
  background-color: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  text-align: center;
  border: 1px solid var(--color-border);
}

.form-thank-you h3 {
  color: var(--color-success);
}

.site-footer {
  background-color: var(--color-surface);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
}

.footer-column h4 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.footer-links {
  list-style: none;
  padding: 0;
}

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

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

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

.footer-contact {
  font-style: normal;
  color: var(--color-text-secondary);
}

.footer-contact a {
  color: var(--color-text-secondary);
  display: block;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.social-links a {
  color: var(--color-text-secondary);
}

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

.social-links svg {
  width: 20px;
  height: 20px;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  z-index: 1001;
}

.mobile-menu-toggle .icon-menu,
.mobile-menu-toggle .icon-close {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.mobile-menu-toggle .icon-close {
  display: none;
}

body.mobile-menu-open .mobile-menu-toggle .icon-menu {
  display: none;
}

body.mobile-menu-open .mobile-menu-toggle .icon-close {
  display: block;
}

.scroll-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  padding: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 -2px 10px var(--color-shadow);
  z-index: 2000;
  transform: translateY(100%);
  animation: slide-up 0.5s forwards ease-out;
}

@keyframes slide-up {
  to {
    transform: translateY(0);
  }
}

.cookie-banner-content p {
  margin: 0;
  margin-right: var(--spacing-md);
}

.cookie-banner-content a {
  text-decoration: underline;
}

.cookie-banner-actions .button {
  padding: 10px 20px;
}

@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }

  h1 {
    font-size: 2.8rem;
  }

  .hero-title {
    font-size: 3rem;
  }
}

@media (max-width: 992px) {
  .container {
    max-width: 720px;
  }

  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero-section .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    order: 2;
  }

  .hero-image {
    order: 1;
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta,
  .hero-benefits {
    justify-content: center;
  }

  .case-study-section .container {
    grid-template-columns: 1fr;
  }

  .case-study-image {
    max-width: 500px;
    margin: 0 auto var(--spacing-lg);
  }

  .cta-section .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .quick-register-form {
    max-width: 500px;
    margin: 0 auto;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .about-column {
    grid-column: 1 / 3;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-lg);
  }

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

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

  .main-navigation .nav-menu,
  .main-navigation .header-actions {
    display: none;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--color-background);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
  }

  body.mobile-menu-open .nav-menu {
    display: flex;
    transform: translateX(0);
  }

  body.mobile-menu-open .header-actions {
    display: block;
    margin-top: var(--spacing-lg);
  }

  .nav-menu li a {
    font-size: 1.5rem;
  }

  .steps-container::before {
    left: 20px;
  }

  .step-number {
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
  }

  .case-study-details {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .cookie-banner {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-md);
  }
}

@media (max-width: 576px) {
  html {
    font-size: 15px;
  }

  h1,
  .hero-title {
    font-size: 2.2rem;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-benefits {
    flex-direction: column;
    align-items: center;
  }

  .solutions-grid {
    grid-template-columns: 1fr;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .about-column {
    grid-column: auto;
  }
}

@media (min-width: 1800px) {
  :root {
    --container-width: 1400px;
  }
  html {
    font-size: 17px;
  }
}

@media (min-width: 2200px) {
  :root {
    --container-width: 1600px;
  }
  html {
    font-size: 18px;
  }
}