/* style.css */

:root {
  --font-primary: "Helvetica Neue", Arial, sans-serif;
  --font-secondary: "Georgia", serif;

  --color-primary: #005a9c;
  --color-primary-dark: #004170;
  --color-secondary: #ffc107;
  --color-secondary-dark: #d39e00;
  --color-accent: #e83e8c;
  --color-success: #28a745;
  --color-danger: #dc3545;

  --background-body: #fdfefe;
  --background-alt: #f4f6f7;
  --background-card: #ffffff;

  --text-primary: #212529;
  --text-secondary: #5a6268;
  --text-on-primary: #ffffff;
  --text-on-secondary: #212529;

  --border-color: #dee2e6;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --box-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 32px;
  --spacing-xl: 64px;
  --spacing-xxl: 96px;

  --container-width: 1200px;
  --transition-speed: 0.3s;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #1e90ff;
    --color-primary-dark: #104e8b;
    --color-secondary: #ffc107;
    --color-secondary-dark: #d39e00;

    --background-body: #121212;
    --background-alt: #1e1e1e;
    --background-card: #2a2a2a;

    --text-primary: #eaeaea;
    --text-secondary: #a0a0a0;
    --text-on-primary: #ffffff;

    --border-color: #444444;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    --box-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.3);
  }
}

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

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

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

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

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

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

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

h4 {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
}

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

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

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

ul {
  list-style: none;
}

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

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

.section-header p {
  font-size: 1.1rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.site-header {
  background-color: var(--background-card);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: background-color var(--transition-speed) ease,
    border-color var(--transition-speed) ease;
}

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

.site-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

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

.main-navigation ul {
  display: flex;
  gap: var(--spacing-lg);
}

.main-navigation a {
  color: var(--text-secondary);
  font-weight: 500;
  padding: var(--spacing-sm) 0;
  position: relative;
  text-decoration: none;
}

.main-navigation a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-speed) ease;
}

.main-navigation a:hover {
  color: var(--text-primary);
}

.main-navigation a:hover::after {
  width: 100%;
}

.button {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: transform var(--transition-speed) ease,
    background-color var(--transition-speed) ease,
    color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
  border: 1px solid transparent;
  text-decoration: none;
}

.button:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

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

.primary-button:hover {
  background-color: var(--color-primary-dark);
  color: var(--text-on-primary);
  box-shadow: 0 4px 15px rgba(0, 90, 156, 0.2);
}

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

.secondary-button:hover {
  background-color: var(--color-primary);
  color: var(--text-on-primary);
}

.large-button {
  padding: calc(var(--spacing-md) * 1.2) calc(var(--spacing-lg) * 1.5);
  font-size: 1.1rem;
}

.full-width {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.mobile-menu-toggle .icon-open,
.mobile-menu-toggle .icon-close {
  width: 32px;
  height: 32px;
  color: var(--text-primary);
}

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

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

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

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

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

.hero-content .subtitle {
  font-size: 1.25rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  max-width: 550px;
}

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

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

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

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

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

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

.solution-icon {
  margin: 0 auto var(--spacing-md);
  color: var(--color-primary);
}

.solution-card h3 {
  margin-top: var(--spacing-md);
}

.solution-card .features-list {
  text-align: left;
  margin-top: var(--spacing-md);
  padding-left: var(--spacing-md);
}

.solution-card .features-list li {
  padding-left: var(--spacing-md);
  position: relative;
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

.solution-card .features-list li::before {
  content: "✔";
  color: var(--color-success);
  position: absolute;
  left: 0;
}

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

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  position: relative;
}

.step-item {
  padding: var(--spacing-lg);
  background-color: var(--background-card);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  position: relative;
}

.step-number {
  position: absolute;
  top: -20px;
  left: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--text-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
}

.step-item h4 {
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

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

.features-detailed-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.features-detailed-list li {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.features-detailed-list svg {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  color: var(--color-primary);
  margin-top: 4px;
}

.features-detailed-list span {
  display: block;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

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

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

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

.tabs-nav {
  display: flex;
  overflow-x: auto;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: var(--spacing-lg);
  -webkit-overflow-scrolling: touch;
}

.tab-button {
  padding: var(--spacing-md) var(--spacing-lg);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  white-space: nowrap;
  transition: color var(--transition-speed) ease;
}

.tab-button.active {
  color: var(--color-primary);
}

.tab-button.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary);
}

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

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

.tab-pane ul {
  list-style: disc;
  padding-left: var(--spacing-lg);
}

.tab-pane li {
  margin-bottom: var(--spacing-sm);
}

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

.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(--box-shadow);
}

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

.quote {
  margin-top: var(--spacing-lg);
  padding-left: var(--spacing-lg);
  border-left: 4px solid var(--color-primary);
  font-style: italic;
  color: var(--text-secondary);
}

.quote cite {
  display: block;
  margin-top: var(--spacing-sm);
  font-style: normal;
  font-weight: 600;
  color: var(--text-primary);
}

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

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

.pricing-plan {
  background-color: var(--background-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease;
}

.pricing-plan:hover {
  box-shadow: var(--box-shadow-hover);
  transform: translateY(-5px);
}

.pricing-plan.popular {
  border-color: var(--color-primary);
  transform: scale(1.05);
  position: relative;
  z-index: 10;
}

.pricing-plan.popular::before {
  content: "Najpopularniejszy";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--color-primary);
  color: var(--text-on-primary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
}

.plan-header {
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.plan-price {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.plan-price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
}

.plan-description {
  min-height: 40px;
  color: var(--text-secondary);
}

.plan-features {
  flex-grow: 1;
}

.plan-features ul li {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
  position: relative;
}

.plan-features ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: bold;
}

.plan-cta {
  margin-top: var(--spacing-lg);
}

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

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

.testimonial-card {
  background-color: var(--background-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
}

.testimonial-card p {
  font-style: italic;
  color: var(--text-secondary);
  position: relative;
  padding-left: var(--spacing-lg);
}

.testimonial-card p::before {
  content: "“";
  position: absolute;
  left: -5px;
  top: -10px;
  font-size: 3rem;
  color: var(--color-primary);
  opacity: 0.2;
}

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

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

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

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

.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.faq-accordion details {
  background-color: var(--background-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
}

.faq-accordion details[open] {
  border-color: var(--color-primary);
}

.faq-accordion summary {
  padding: var(--spacing-md) var(--spacing-lg);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
}

.faq-accordion summary::-webkit-details-marker {
  display: none;
}

.faq-accordion details[open] summary {
  color: var(--color-primary);
}

.faq-accordion summary svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-speed) ease;
}

.faq-accordion details[open] summary svg {
  transform: rotate(180deg);
}

.faq-content {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

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

.registration-cta-section {
  background-color: var(--color-primary);
  color: var(--text-on-primary);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.registration-cta-section h2 {
  color: var(--text-on-primary);
}

.registration-cta-section p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.registration-form-container {
  max-width: 500px;
  margin: var(--spacing-lg) auto 0;
}

.form-row {
  margin-bottom: var(--spacing-md);
}

#quick-registration-form input {
  width: 100%;
  padding: var(--spacing-md);
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-color);
  font-size: 1rem;
  background-color: var(--background-body);
  color: var(--text-primary);
}

#quick-registration-form button {
  background-color: var(--color-secondary);
  color: var(--text-on-secondary);
  border: none;
}

#quick-registration-form button:hover {
  background-color: var(--color-secondary-dark);
  box-shadow: 0 4px 15px rgba(255, 193, 7, 0.3);
}

.form-terms {
  font-size: 0.85rem;
  margin-top: var(--spacing-md);
  color: rgba(255, 255, 255, 0.7);
}

.form-terms a {
  color: var(--text-on-primary);
  text-decoration: underline;
}

#form-thank-you {
  background-color: var(--background-card);
  color: var(--text-primary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
}

.site-footer {
  background-color: var(--background-alt);
  color: var(--text-secondary);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--border-color);
}

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

.footer-column h4 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

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

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

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

.about-column p {
  font-size: 0.9rem;
}

.footer-column address {
  font-style: normal;
  line-height: 1.8;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  margin-top: var(--spacing-xl);
  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(--background-card);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  padding: var(--spacing-md);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-lg);
  transform: translateY(100%);
  animation: slideInUp 0.5s forwards ease-out;
}

.cookie-banner p {
  margin: 0;
  color: var(--text-secondary);
}

.cookie-banner a {
  color: var(--color-primary);
  text-decoration: underline;
}

.cookie-banner button {
  padding: var(--spacing-sm) var(--spacing-lg);
  white-space: nowrap;
}

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

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@media (max-width: 992px) {
  .hero-section .container,
  .features-section .container,
  .case-study-section .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content .subtitle,
  .features-content p {
    margin-left: auto;
    margin-right: auto;
  }

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

  .hero-image {
    order: -1;
  }

  .case-study-content {
    order: -1;
  }

  .features-image,
  .case-study-image {
    margin-bottom: var(--spacing-lg);
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 768px) {
  .main-navigation {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--background-card);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-lg);
  }

  body.nav-open .main-navigation {
    display: block;
  }

  .main-navigation ul {
    flex-direction: column;
    align-items: center;
  }

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

  .site-header .primary-button {
    display: none;
  }

  body.nav-open .site-header .primary-button {
    display: block;
    margin-top: var(--spacing-lg);
    width: 100%;
    text-align: center;
  }

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

  .pricing-plan.popular {
    transform: scale(1);
  }

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

@media (max-width: 576px) {
  .container {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

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

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

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

  .footer-column address {
    margin: 0 auto;
  }

  .tabs-nav {
    justify-content: flex-start;
  }
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}