/*
 * Dannordstrom - stylestyle.css
 * Wersja 1.0.0
 * Data: 2025-09-07
 * Autor: Gemini AI
 */

/* 1. Zmienne CSS (Custom Properties)
----------------------------------------------------------------*/
:root {
  --font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
    "Segoe UI Symbol";
  --font-secondary: "Roboto Slab", serif;

  /* Jasny Motyw */
  --color-background: #f8f9fa;
  --color-surface: #ffffff;
  --color-primary: #0d6efd;
  --color-primary-dark: #0a58ca;
  --color-secondary: #6c757d;
  --color-text-primary: #212529;
  --color-text-secondary: #495057;
  --color-border: #dee2e6;
  --color-success: #198754;
  --color-white: #ffffff;
  --color-shadow: rgba(0, 0, 0, 0.05);

  /* System Odstępów */
  --space-xs: 0.25rem; /* 4px */
  --space-sm: 0.5rem; /* 8px */
  --space-md: 1rem; /* 16px */
  --space-lg: 1.5rem; /* 24px */
  --space-xl: 2rem; /* 32px */
  --space-xxl: 3rem; /* 48px */
  --space-section: 6rem; /* 96px */

  /* Typografia */
  --font-size-base: 16px;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-h4: 1.25rem;
  --font-size-h3: 1.75rem;
  --font-size-h2: 2.25rem;
  --font-size-h1: 3rem;

  /* Inne */
  --border-radius: 8px;
  --transition-speed: 0.3s;
  --container-width: 1200px;
  --container-padding: 1.5rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Ciemny Motyw */
    --color-background: #121212;
    --color-surface: #1e1e1e;
    --color-primary: #3a86ff;
    --color-primary-dark: #63a0ff;
    --color-secondary: #adb5bd;
    --color-text-primary: #e9ecef;
    --color-text-secondary: #ced4da;
    --color-border: #495057;
    --color-success: #20c997;
    --color-shadow: rgba(0, 0, 0, 0.2);
  }
}

/* 2. Reset i Style Bazowe
----------------------------------------------------------------*/
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex-grow: 1;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
}

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

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

p {
  margin-bottom: var(--space-md);
  max-width: 75ch;
}

h1,
h2,
h3,
h4 {
  margin-top: 0;
  margin-bottom: var(--space-lg);
  font-family: var(--font-secondary);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

h1 {
  font-size: var(--font-size-h1);
}

h2 {
  font-size: var(--font-size-h2);
}

h3 {
  font-size: var(--font-size-h3);
}

h4 {
  font-size: var(--font-size-h4);
}

ul {
  list-style-position: inside;
  padding-left: var(--space-md);
  margin-bottom: var(--space-md);
}

ul li {
  margin-bottom: var(--space-sm);
}

strong {
  font-weight: 700;
}

address {
  font-style: normal;
}

/* 3. Klasy Pomocnicze i Kontener
----------------------------------------------------------------*/
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xxl);
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header p {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
}

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

/* Animacje przy przewijaniu */
.fade-in-section {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* 4. Nagłówek i Nawigacja
----------------------------------------------------------------*/
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
  transition: background-color var(--transition-speed) ease;
}

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

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

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

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
  gap: var(--space-xl);
}

.nav-menu li a {
  color: var(--color-text-secondary);
  font-weight: 500;
  text-decoration: none;
  position: relative;
  padding-bottom: var(--space-sm);
}

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

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

.nav-menu li a:hover {
  color: var(--color-text-primary);
}

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

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

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

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

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

/* 5. Przyciski
----------------------------------------------------------------*/
.button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-md);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-speed) ease,
    color var(--transition-speed) ease,
    border-color var(--transition-speed) ease, transform 0.2s ease;
}

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

.button:active {
  transform: translateY(0);
}

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

.primary-button:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
}

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

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

.large-button {
  padding: 1rem 2rem;
  font-size: var(--font-size-lg);
}

/* 6. Sekcja Hero
----------------------------------------------------------------*/
.hero-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  text-align: center;
  background-color: var(--color-surface);
}

.hero-content h1 {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-lg);
}

.hero-content .subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--space-xxl);
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* 7. Sekcja Usług (Services)
----------------------------------------------------------------*/
.services-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.service-card {
  background-color: var(--color-surface);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: transform var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px var(--color-shadow);
}

.service-icon {
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
}

.service-icon svg {
  width: 48px;
  height: 48px;
}

.service-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
}

.service-card p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-md);
  margin-bottom: 0;
}

/* 8. Sekcja "Jak to działa" (How It Works)
----------------------------------------------------------------*/
.how-it-works-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background-color: var(--color-surface);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: var(--space-xl);
}

.process-step {
  padding: var(--space-lg);
  position: relative;
}

.step-number {
  position: absolute;
  top: 0;
  left: 0;
  font-size: 5rem;
  font-weight: 800;
  color: var(--color-border);
  opacity: 0.5;
  z-index: 1;
  line-height: 1;
}

.step-title {
  font-size: var(--font-size-xl);
  position: relative;
  z-index: 2;
  margin-bottom: var(--space-md);
  padding-top: var(--space-md);
}

.process-step p {
  position: relative;
  z-index: 2;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* 9. Sekcja Studium Przypadku (Case Study)
----------------------------------------------------------------*/
.case-study-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

.case-study-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xxl);
  align-items: center;
}

.case-study-text h4 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.case-study-text ul {
  list-style-type: disc;
  margin-top: var(--space-md);
  padding-left: var(--space-lg);
}

.case-study-image img {
  border-radius: var(--border-radius);
  box-shadow: 0 15px 30px var(--color-shadow);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  text-align: center;
}

.result-item {
  padding: var(--space-lg) var(--space-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
}

.result-value {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.result-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* 10. Sekcja "Dla kogo"
----------------------------------------------------------------*/
.target-audience-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background-color: var(--color-surface);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.audience-card {
  padding: var(--space-xl);
  border-left: 4px solid var(--color-primary);
}

.audience-card h4 {
  margin-bottom: var(--space-md);
}

.audience-card p {
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* 11. Sekcja Opinie (Testimonials)
----------------------------------------------------------------*/
.testimonials-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

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

.testimonial-card {
  background-color: var(--color-surface);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  display: flex;
  flex-direction: column;
}

.testimonial-card p {
  font-style: italic;
  flex-grow: 1;
  margin-bottom: var(--space-lg);
  position: relative;
  padding-left: var(--space-xl);
}

.testimonial-card p::before {
  content: "“";
  position: absolute;
  left: -5px;
  top: -10px;
  font-size: 3rem;
  color: var(--color-primary);
  font-family: var(--font-secondary);
  opacity: 0.5;
}

.testimonial-card footer {
  margin-top: auto;
}

.testimonial-card cite {
  font-style: normal;
  font-weight: 600;
  display: block;
}

.testimonial-card span {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* 12. Sekcja Zespół (Team)
----------------------------------------------------------------*/
.team-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background-color: var(--color-surface);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xxl);
}

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

.team-member h4 {
  margin-bottom: var(--space-xs);
}

.team-member p {
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

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

.team-cta p {
  margin-bottom: var(--space-md);
  font-size: var(--font-size-lg);
}

/* 13. Sekcja FAQ (Accordion)
----------------------------------------------------------------*/
.faq-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
}

.faq-accordion details {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

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

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

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

.faq-accordion summary svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  transition: transform var(--transition-speed) ease;
}

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

.faq-content {
  padding: 0 var(--space-lg) var(--space-lg) var(--space-lg);
  color: var(--color-text-secondary);
}

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

/* 14. Sekcja CTA i Formularz Rejestracji
----------------------------------------------------------------*/
.registration-cta-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background-color: var(--color-primary);
  color: var(--color-white);
}

.registration-cta-section .cta-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

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

.registration-cta-section p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-xl);
}

.registration-form .form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.form-group {
  text-align: left;
}

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

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background-color: var(--color-surface);
  color: var(--color-text-primary);
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-primary-dark);
  box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.25);
}

.registration-cta-section .button.primary-button {
  background-color: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

.registration-cta-section .button.primary-button:hover {
  background-color: var(--color-background);
  color: var(--color-primary);
  border-color: var(--color-background);
}

.form-thank-you-message {
  padding: var(--space-xl);
  background: var(--color-surface);
  color: var(--color-text-primary);
  border-radius: var(--border-radius);
}

/* 15. Stopka (Footer)
----------------------------------------------------------------*/
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-xxl);
  padding-bottom: var(--space-xl);
  color: var(--color-text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xxl);
}

.footer-column h4 {
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-md);
  font-weight: 600;
}

.footer-column.about-column p {
  font-size: var(--font-size-sm);
}

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

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

.footer-column ul li a:hover {
  color: var(--color-primary);
}

.contact-column p {
  margin-bottom: var(--space-sm);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-xl);
  text-align: center;
  font-size: var(--font-size-sm);
}

/* 16. Baner Cookies
----------------------------------------------------------------*/
.cookie-consent-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  padding: var(--space-lg);
  box-shadow: 0 -5px 15px var(--color-shadow);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
  transform: translateY(100%);
  animation: slide-up 0.5s ease-out forwards;
}

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

.cookie-consent-banner.hidden {
  display: none;
}

.cookie-consent-text {
  flex-grow: 1;
  text-align: center;
}

.cookie-consent-button {
  flex-shrink: 0;
}

/* 17. Media Queries (Responsywność)
----------------------------------------------------------------*/

/* Tablety (od 768px) */
@media (min-width: 768px) {
  :root {
    --font-size-h2: 2.75rem;
    --font-size-h1: 3.75rem;
  }

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

  .registration-form .form-grid {
    grid-template-columns: 1fr 1fr;
  }

  .registration-form .form-grid .form-group:nth-child(1),
  .registration-form .form-grid .form-group:nth-child(2) {
    grid-column: span 1;
  }

  .registration-form .form-grid .form-group:nth-child(3),
  .registration-form .form-grid .form-group:nth-child(4) {
    grid-column: span 1;
  }

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

/* Małe Desktopy (od 992px) */
@media (min-width: 992px) {
  .process-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .case-study-content {
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
  }
}

/* Duże Desktopy (od 1200px) */
@media (min-width: 1200px) {
  :root {
    --space-section: 8rem; /* 128px */
  }
}

/* Responsywna nawigacja (do 850px) */
@media (max-width: 850px) {
  .nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-surface);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transform: translateX(-100%);
    transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    padding: var(--space-xxl) 0;
  }

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

  .nav-menu li {
    margin: var(--space-md) 0;
  }

  .nav-menu li a {
    font-size: var(--font-size-xl);
  }

  .main-navigation .primary-button {
    display: none;
  }

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