html[data-theme="light"] body {
  background: linear-gradient(to bottom, #F7F6F4 0%, #fff7f7 100%);
}

body {
  background: var(--bg-color);
  color: var(--text-color);
}

.section__inner {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow-soft);
}


/* ===========================
   THEME VARIABLES
=========================== */
html[data-theme="light"] .section__inner .nav {
  background: var(--card-bg, #fff7f7 );
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

html[data-theme="dark"] .section__inner {
  background: var(--card-bg-dark, #1A1A1A);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.theme-banner {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--banner-bg, #fff);
  color: var(--banner-text, #000);
  padding: 14px 18px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  display: none;
  align-items: center;
  gap: 12px;
  z-index: 9999;
  font-size: 14px;
}

.theme-banner__buttons button {
  margin-left: 6px;
  padding: 6px 12px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-size: 14px;
}

.theme-banner__buttons button:first-child {
  background: #2d7df4;
  color: white;
}

.theme-banner__buttons button:last-child {
  background: #e5e5e5;
  color: #000;
}


.swiper-button-next::after,
.swiper-button-prev::after {
    display: none !important;
}

.fsa-arrow {
  height: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  color: var(--text);
  background: var(--card-bg);
  border-radius: 50%;
  transition: 0.25s ease;
  border: 1px solid var(--border);
}

/* Ikona */
.fsa-arrow svg {
  width: 20px;
  height: 20px;
}

/* Hover – tło + cień jak w product-card */
.fsa-arrow:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}


/* Mobile */
@media (max-width: 768px) {
  .swiper-button-prev { left: 10px; }
  .swiper-button-next { right: 10px; }
}

:root {
  --bg: #ffffff;
  --text: #111111;
  --subtext: #333333;
  --border: rgba(0, 0, 0, 0.1);
  --hero-bg: #fafafa;
  --card-bg: #ffffff;
  --nav-bg: #ffffff;
}
 
[data-theme="dark"] {
  --bg: #0A0F14;
  --text: #f2f2f2;
  --subtext: #cccccc;
  --border: rgba(255, 255, 255, 0.15);
  --hero-bg: #11161d;
  --card-bg: #161d26;
  --nav-bg: #0A0F14;
}

/* ===========================
   BASE
=========================== */
body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s ease, color 0.3s ease;
}

h1, h2, h3 {
  font-family: 'IBM Plex Serif', serif;
  margin: 0 0 16px 0;
  color: var(--text);
}

a {
  color: var(--text);
  text-decoration: none;
  transition: 0.2s;
}
a:hover {
  opacity: 0.8;
}

/* ===========================
   LAYOUT
=========================== */
.section {
  padding: 80px 24px;
}

.section__inner,
.hero__content,
.nav-inner {
  max-width: 960px;
  margin: 0 auto;
}

.section__kicker {
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--subtext);
  margin-bottom: 12px;
}

.section__body p {
  color: var(--subtext);
  margin-bottom: 18px;
}

/* ===========================
   NAVIGATION
=========================== */
nav {
  
  top: 0;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  z-index: 100;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-links {
  display: flex;
  gap: 22px;
  align-items: center;
}

#themeToggle {
  background: none;
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--text);
}

/* ===========================
   HERO
=========================== */
.hero {
  padding: 120px 24px 100px;
  background: var(--hero-bg);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero__meta-item {
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  font-size: 0.9rem;
}

/* ===========================
   GRID & CARDS
=========================== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
  margin-top: 24px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 18px;
  border-radius: 12px;
}

.card__text {
  color: var(--subtext);
}

/* ===========================
   METHOD DIAGRAM
=========================== */
.method-diagram {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.method-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.step-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--text);
  color: var(--bg);
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: 600;
}

.step-label {
  font-size: 1rem;
}

.method-line {
  width: 40px;
  height: 2px;
  background: var(--border);
}

/* ===========================
   MOBILE ADAPTATION
=========================== */
@media (max-width: 768px) {

  body {
    font-size: 0.95rem;
  }

  nav {
    padding: 10px 16px;
  }

  .nav-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 14px;
    font-size: 0.95rem;
  }

  .hero {
    padding: 80px 16px 60px;
  }

  h1 {
    font-size: 1.8rem;
    line-height: 1.25;
  }

  .hero__subtitle {
    font-size: 1rem;
  }

  .hero__meta {
    flex-direction: column;
    gap: 10px;
  }

  .hero__meta-item {
    font-size: 0.85rem;
    padding: 6px 10px;
  }

  .section {
    padding: 60px 16px;
  }

  .grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .card {
    padding: 14px;
  }

  .card__title {
    font-size: 1rem;
  }

  .card__text {
    font-size: 0.95rem;
  }

  /* Method diagram vertical mode */
  .method-diagram {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .method-step {
    flex-direction: row;
    align-items: center;
    gap: 12px;
  }

  .step-circle {
    width: 32px;
    height: 32px;
    font-size: 0.9rem;
    flex-shrink: 0;
  }

  .method-line {
    display: none;
  }

  footer {
    padding: 32px 16px !important;
  }

  footer div {
    font-size: 0.85rem;
  }
}

/* TABLET (769px–1024px) */
@media (max-width: 1024px) and (min-width: 769px) {

  nav {
    padding: 12px 20px;
  }

  .nav-inner {
    gap: 16px;
  }

  .nav-links {
    gap: 18px;
  }

  .hero {
    padding: 100px 24px 80px;
  }

  h1 {
    font-size: 2.2rem;
    line-height: 1.25;
  }

  .hero__meta {
    gap: 10px;
  }

  .hero__meta-item {
    font-size: 0.9rem;
    padding: 8px 12px;
  }

  .section {
    padding: 70px 24px;
  }

  .grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
  }

  .card {
    padding: 16px;
  }

  footer {
    padding: 40px 24px !important;
  }
   /* ===== SEKCJA ZESTAWY ===== */

.zestawy-section {
  width: 100%;
  max-width: 900px;
  margin: 80px auto 40px auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.zestawy-title {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 32px;
  text-align: center;
  color: #111;
}

/* ===== KARTA HORYZONTALNA ===== */

.card-horizontal {
  width: 100%;
  max-width: 480px;
  margin: 0 auto 32px auto;
  padding: 20px;
  background: #fff;
  border: 1px solid #e5e5e5;
  text-align: center;
  box-sizing: border-box;
}

.card-horizontal img {
  width: 100%;
  max-width: 440px;
  height: auto;
  border-radius: 4px;
  margin-bottom: 20px;
}

.card-horizontal__text {
  font-size: 16px;
  line-height: 1.45;
  color: #111;
  margin-bottom: 20px;
}

.card-horizontal__link {
  display: inline-block;
  padding: 10px 22px;
  background: #000;
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  border-radius: 4px;
  transition: 0.2s;
}

.card-horizontal__link:hover {
  background: #333;
}
}
/* ===== RESPONSYWNOŚĆ ===== */

@media (max-width: 480px) {
  .card-horizontal {
    max-width: 340px;
    padding: 16px;
  }
  .card-horizontal img {
    max-width: 300px;
  }
}
/* ===========================
   ZESTAWY – SPÓJNY STYL FSA
=========================== */

.zestaw {
  text-align: center;
  max-width: 520px;
  margin: 0 auto;
}

.zestaw__img {
  width: 100%;
  max-width: 420px; /* średnia, elegancka wielkość */
  height: auto;
  border-radius: 12px;
  margin-bottom: 16px;
}

.zestaw__text {
  color: var(--subtext);
  font-size: 0.95rem;
  margin-bottom: 20px;
  line-height: 1.5;
}

/* Responsywność */
@media (max-width: 480px) {
  .zestaw__img {
    max-width: 300px;
  }
}

   /* ===========================
   ZESTAWY – SPÓJNY STYL Z KSIĄŻKAMI
=========================== */

.zestaw-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  max-width: 420px;
  margin: 0 auto;
  text-align: center;
}

.zestaw-card__img {
  width: 100%;
  max-width: 380px;
  height: auto;
  border-radius: 12px;
  margin-bottom: 12px;
}

.zestaw-card__text {
  color: var(--subtext);
  font-size: 0.95rem;
  margin-bottom: 20px;
  line-height: 1.5;
}

/* Responsywność */
@media (max-width: 480px) {
  .zestaw-card {
    max-width: 320px;
    padding: 14px;
  }
  .zestaw-card__img {
    max-width: 300px;
  }
}

/* ============================================
   KARCELA PRODUKTÓW FSA – WERSJA JEDEN SLIDE
   (zawsze 1 produkt na ekranie, wycentrowany)
   ============================================ */

/* Kontener całej karuzeli */
.fsa-slider {
  width: 100%;
  max-width: 640px;      /* szerokość całej karuzeli */
  margin: 40px auto;     /* wycentrowanie */
  padding: 0;
}

/* Wyrównanie slajdów w pionie */
.fsa-slider .swiper-wrapper {
  align-items: stretch;   /* każdy slajd ma tę samą wysokość */
}

/* Każdy slajd jest flexboxem, aby karta była idealnie wycentrowana */
.fsa-slider .swiper-slide {
  display: flex;
  justify-content: center;
}

/* Karta produktu wewnątrz slajdu */
.product-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  transition: transform .3s ease, box-shadow .3s ease;
  max-width: 420px;       /* szerokość karty */
  margin: 0 auto;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}

/* ============================
   OBRAZKI – JEDNAKOWY ROZMIAR
   ============================ */
.product-card img {
  width: 50%;
    height: 60%;
  max-width: 360px;       
  object-fit: cover;      
  border-radius: 12px;
  margin: 0 auto 16px auto;
  display: block;
}

/* Teksty */
.product-card h3 {
  font-size: 20px;
  margin-bottom: 8px;
  font-weight: 600;
}

.product-card p {
  font-size: 0.95rem;
  color: var(--subtext);
  margin-bottom: 16px;
  line-height: 1.5;
}

/* Przycisk */
.product-card .btn {
  display: inline-block;
  padding: 10px 20px;
  background: #111;
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.95rem;
  transition: background .2s ease, opacity .2s ease;
}

.product-card .btn:hover {
  background: #333;
}

/* ============================
   MOBILE
   ============================ */
@media (max-width: 768px) {
  .fsa-slider {
    max-width: 100%;
    margin: 24px auto;
    padding: 0 8px;
  }

  .product-card {
    padding: 16px;
  }

  .product-card img {
    width: 50%;
    height: 60%;   /* mniejsza wysokość na telefonach */
  }
}

}