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

  --color-primary: #0057ff;
  --color-primary-dark: #0045cc;
  --color-primary-light: #e6f0ff;

  --color-secondary: #ff8c00;

  --color-text: #212529;
  --color-text-muted: #6c757d;
  --color-background: #ffffff;
  --color-surface: #f8f9fa;
  --color-border: #dee2e6;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-success: #28a745;
  --color-danger: #dc3545;

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.07), 0 4px 6px rgba(0, 0, 0, 0.05);

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

  --max-width: 1200px;
  --header-height: 80px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #4da1ff;
    --color-primary-dark: #2a8cff;
    --color-primary-light: #1a2a44;

    --color-secondary: #ffae42;

    --color-text: #e9ecef;
    --color-text-muted: #adb5bd;
    --color-background: #121212;
    --color-surface: #1e1e1e;
    --color-border: #343a40;
    --color-white: #ffffff;
    --color-black: #000000;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.25), 0 1px 3px rgba(0, 0, 0, 0.18);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.25), 0 4px 6px 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);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 1.75rem);
}

h4 {
  font-size: 1.25rem;
}

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

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

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

ul,
ol {
  padding-left: 1.25rem;
  margin-bottom: var(--spacing-md);
}

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

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

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

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

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-xl) auto;
}

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

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

.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

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

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

.btn-secondary:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: 1.125rem;
}

.btn-full {
  width: 100%;
}

.main-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  height: var(--header-height);
  background-color: color-mix(
    in srgb,
    var(--color-background) 90%,
    transparent
  );
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-fast);
}

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

.logo {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
}

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

.logo-icon {
  margin-right: var(--spacing-sm);
  color: var(--color-primary);
  width: 32px;
  height: 32px;
}

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

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

.nav-menu a {
  color: var(--color-text);
  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-primary);
  transition: width var(--transition-fast);
}

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

.hero-section {
  padding-top: var(--spacing-xxl);
  padding-bottom: var(--spacing-xxl);
  display: flex;
  align-items: center;
  min-height: calc(100vh - var(--header-height));
  background-color: var(--color-surface);
}

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

.hero-content h1 {
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  max-width: 90%;
}

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

.hero-image img {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

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

.tabs-container {
  max-width: 900px;
  margin: 0 auto;
}

.tabs-nav {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-lg);
}

.tab-link {
  flex: 1;
  padding: var(--spacing-md);
  border: none;
  background: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-muted);
  border-bottom: 3px solid transparent;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.tab-link:hover {
  color: var(--color-text);
  background-color: var(--color-surface);
}

.tab-link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-pane {
  display: none;
  animation: fadeIn 0.5s ease;
}

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

.tab-pane h3 {
  margin-bottom: var(--spacing-md);
}

.tab-pane p {
  margin-bottom: var(--spacing-md);
}

.tab-pane ul {
  list-style: none;
  padding: 0;
}

.tab-pane li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: var(--spacing-sm);
}

.tab-pane li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-success);
  font-weight: bold;
  font-size: 1.25rem;
}

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

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

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

.step-card {
  text-align: center;
  padding: var(--spacing-lg);
  background-color: var(--color-background);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

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

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.25rem;
  margin: 0 auto var(--spacing-md);
}

.step-card svg {
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.step-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.step-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
}

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

.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.audience-card {
  background: var(--color-surface);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-md);
  border-left: 5px solid var(--color-primary);
}

.audience-card h4 {
  margin-bottom: var(--spacing-sm);
}

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

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
  align-items: center;
}

.pricing-card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: all var(--transition-slow);
}

.pricing-card.popular {
  border-color: var(--color-primary);
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.pricing-card.popular::before {
  content: "NAJPOPULARNIEJSZY";
  position: absolute;
  top: 20px;
  right: -45px;
  transform: rotate(45deg);
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-xs) 40px;
  font-size: 0.75rem;
  font-weight: bold;
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.pricing-header .price {
  font-size: 3rem;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.pricing-header .price span {
  font-size: 1rem;
  font-weight: normal;
  color: var(--color-text-muted);
}

.pricing-description {
  color: var(--color-text-muted);
  min-height: 50px;
}

.features-list {
  margin-bottom: var(--spacing-lg);
  flex-grow: 1;
}

.features-list li {
  padding-left: 1.75rem;
  position: relative;
  margin-bottom: var(--spacing-md);
}

.features-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 20px;
  height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2328a745' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 11.08V12a10 10 0 1 1-5.93-9.14'%3E%3C/path%3E%3Cpolyline points='22 4 12 14.01 9 11.01'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-size: contain;
}

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

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

.testimonial-card {
  background-color: var(--color-surface);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-md);
}

.testimonial-card blockquote {
  border-left: 3px solid var(--color-primary);
  padding-left: var(--spacing-lg);
  margin: 0 0 var(--spacing-md) 0;
  font-style: italic;
}

.testimonial-card footer {
  margin-top: var(--spacing-md);
  text-align: right;
}

.testimonial-card cite {
  font-weight: bold;
  display: block;
  font-style: normal;
}

.testimonial-card span {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

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

.faq-section .container {
  max-width: 800px;
}

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

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

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

.accordion-icon {
  transition: transform var(--transition-fast);
}

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

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-in-out, padding 0.3s ease-in-out;
}

.accordion-content p {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  margin: 0;
  color: var(--color-text-muted);
}

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

.registration-form-section {
  background-color: var(--color-primary-light);
  color: var(--color-text);
}

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

.form-content h2 {
  color: var(--color-primary);
}

.form-benefits {
  list-style: none;
  padding: 0;
  margin-top: var(--spacing-lg);
}

.form-benefits li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
}

.form-benefits li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: bold;
}

.form-wrapper {
  background: var(--color-background);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

#quick-register-form h3 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  background-color: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px
    color-mix(in srgb, var(--color-primary) 25%, transparent);
}

.form-group-terms {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-lg);
}

.form-group-terms input {
  margin-top: 4px;
}

#form-thank-you {
  text-align: center;
  padding: var(--spacing-xl);
}

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

.main-footer {
  background-color: var(--color-surface);
  padding-top: var(--spacing-xxl);
  color: var(--color-text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
}

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

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

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

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

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

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

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

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

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

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

.footer-column address {
  font-style: normal;
  font-size: 0.95rem;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  text-align: center;
  font-size: 0.9rem;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-surface);
  color: var(--color-text);
  padding: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1001;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
  transform: translateY(100%);
  animation: slideInUp 0.5s forwards;
}

.cookie-banner.hidden {
  animation: slideOutDown 0.5s forwards;
}

@keyframes slideInUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

@keyframes slideOutDown {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(100%);
  }
}

.cookie-banner-text {
  max-width: 80%;
}

.cookie-accept-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-sm);
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

@media (max-width: 1024px) {
  .hero-section .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content {
    order: 2;
  }
  .hero-image {
    order: 1;
    max-width: 500px;
    margin: 0 auto;
  }
  .hero-subtitle {
    max-width: 100%;
  }
  .hero-cta {
    justify-content: center;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
  .pricing-card.popular {
    transform: scale(1);
  }
  .form-container-wrapper {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-background);
    flex-direction: column;
    text-align: center;
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-menu.active {
    display: flex;
  }
  .header-actions {
    display: none;
  }

  .hamburger-menu {
    display: block;
    cursor: pointer;
    background: none;
    border: none;
  }

  .hamburger-menu .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--color-text);
    transition: all 0.3s ease-in-out;
  }

  .hamburger-menu.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .hamburger-menu.active .bar:nth-child(2) {
    opacity: 0;
  }
  .hamburger-menu.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .tabs-nav {
    flex-direction: column;
  }

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

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

  .footer-column .social-links {
    justify-content: center;
  }

  .cookie-banner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
  }
  .btn {
    width: 100%;
  }
}

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

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

.hamburger-menu {
  display: none;
}

@media (max-width: 768px) {
  .header-actions .btn-primary {
    display: none;
  }

  .hamburger-menu {
    display: block;
    z-index: 100;
  }

  .main-nav .nav-menu {
    position: fixed;
    left: -100%;
    top: var(--header-height);
    flex-direction: column;
    background-color: var(--color-background);
    width: 100%;
    height: calc(100vh - var(--header-height));
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow-lg);
    padding-top: var(--spacing-xl);
    gap: var(--spacing-xl);
  }

  .main-nav .nav-menu.active {
    left: 0;
  }

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