@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

/* ============================================
   odor.pl – Neutralizacja odorów ekologicznie
   Style CSS | WCAG 2.2 | High Contrast Mode
   ============================================ */

/* ── Fonts ── */

/* ── CSS Custom Properties ── */
:root {
  /* Brand palette – fresh, ecological, trustworthy */
  --clr-bg:          #f5f7f2;
  --clr-surface:     #ffffff;
  --clr-primary:     #1a6b3a;
  --clr-primary-dk:  #124d2a;
  --clr-primary-lt:  #e8f5ee;
  --clr-accent:      #5cb85c;
  --clr-accent2:     #2d9e6b;
  --clr-text:        #1c2821;
  --clr-text-muted:  #4a5c51;
  --clr-border:      #d0ddd4;
  --clr-shadow:      rgba(26,107,58,.12);
  --clr-hero-grad:   linear-gradient(135deg, #0d4a26 0%, #1a6b3a 50%, #2d9e6b 100%);

  /* Typography */
  --ff-head:  'Sora', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --ff-body:  'DM Sans', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --fs-base:  1rem;
  --lh-body:  1.7;

  /* Spacing */
  --sp-xs:   .5rem;
  --sp-sm:   1rem;
  --sp-md:   2rem;
  --sp-lg:   4rem;
  --sp-xl:   6rem;

  /* Borders / Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;
  --radius-pill: 100px;

  /* Transitions */
  --tr-fast: 200ms ease;
  --tr-med:  350ms cubic-bezier(.4,0,.2,1);

  /* Focus ring */
  --focus-ring: 0 0 0 3px #fff, 0 0 0 5px var(--clr-primary);
}

/* ── High Contrast Mode ── */
[data-contrast="high"] {
  --clr-bg:         #000000;
  --clr-surface:    #111111;
  --clr-primary:    #00ff88;
  --clr-primary-dk: #00cc6a;
  --clr-primary-lt: #001a0d;
  --clr-accent:     #00ff88;
  --clr-accent2:    #00ff88;
  --clr-text:       #ffffff;
  --clr-text-muted: #dddddd;
  --clr-border:     #00ff88;
  --clr-shadow:     rgba(0,255,136,.2);
  --clr-hero-grad:  linear-gradient(135deg, #000 0%, #001a0d 50%, #002b14 100%);
}

[data-contrast="high"] .hero__bg-pattern { opacity: .15; }
[data-contrast="high"] .card { border: 2px solid var(--clr-primary); }
[data-contrast="high"] .btn-primary { color: #000; }
/* Nav: czarne tło, zielone linki – kontrast 7:1+ */
[data-contrast="high"] .site-nav {
  background: #000 !important;
  border-bottom-color: var(--clr-primary);
}
[data-contrast="high"] nav a,
[data-contrast="high"] .nav__logo { color: var(--clr-primary) !important; }
[data-contrast="high"] .hero__tagline { color: #ffffaa; }

/* ── Reset & Base ── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--ff-body);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  color: var(--clr-text);
  background: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--clr-primary); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--clr-primary-dk); }

/* ── Skip Link (WCAG 2.2) ── */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  padding: .6rem 1.2rem;
  background: var(--clr-primary);
  color: #fff;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 600;
  z-index: 9999;
  text-decoration: none;
  transition: top var(--tr-fast);
}
.skip-link:focus { top: 0; outline: none; box-shadow: var(--focus-ring); }

/* ── Focus Visible ── */
:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: 4px; }

/* ── Navigation ── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
  transition: box-shadow var(--tr-med);
}
/* Needed for absolute-positioned mobile dropdown */
.site-nav { position: sticky; }
.site-nav.scrolled { box-shadow: 0 2px 20px var(--clr-shadow); }
.nav__inner {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 2rem;
}
.nav__logo {
  font-family: var(--ff-head);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--clr-primary);
  text-decoration: none;
  letter-spacing: -.5px;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.nav__logo svg { width: 32px; height: 32px; flex-shrink: 0; }
.nav__links {
  display: flex;
  list-style: none;
  gap: .25rem;
}
.nav__links a {
  display: block;
  padding: .5rem .85rem;
  border-radius: var(--radius-pill);
  font-size: .925rem;
  font-weight: 500;
  color: var(--clr-text);
  text-decoration: none;
  transition: background var(--tr-fast), color var(--tr-fast);
}
.nav__links a:hover,
.nav__links a[aria-current="page"] {
  background: var(--clr-primary-lt);
  color: var(--clr-primary);
}
.nav__links a[aria-current="page"] { font-weight: 600; }
.nav__actions { display: flex; align-items: center; gap: .75rem; }

/* Contrast toggle button */
.btn-contrast {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .45rem .85rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--clr-text);
  font-size: .85rem;
  font-family: var(--ff-body);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--tr-fast);
  white-space: nowrap;
}
.btn-contrast:hover { border-color: var(--clr-primary); color: var(--clr-primary); }
.btn-contrast svg { width: 16px; height: 16px; flex-shrink: 0; }

/* Hamburger */
.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: none;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.nav__burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform var(--tr-med), opacity var(--tr-fast);
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: var(--radius-pill);
  font-family: var(--ff-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--tr-med);
  border: 2px solid transparent;
  line-height: 1.3;
}
.btn-primary {
  background: var(--clr-primary);
  color: #fff;
  border-color: var(--clr-primary);
}
.btn-primary:hover {
  background: var(--clr-primary-dk);
  border-color: var(--clr-primary-dk);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--clr-shadow);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.7);
}
.btn-outline:hover {
  background: rgba(255,255,255,.15);
  border-color: #fff;
  color: #fff;
}
.btn svg { width: 20px; height: 20px; flex-shrink: 0; }

/* ── Container / Layout ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.section { padding: var(--sp-lg) 0; }
.section--alt { background: var(--clr-primary-lt); }
.section--dark {
  background: var(--clr-hero-grad);
  color: #fff;
}

.section__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--sp-lg);
}
.section__eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-accent2);
  margin-bottom: .75rem;
}
.section--dark .section__eyebrow { color: #a8e6c3; }

/* ── Typography ── */
h1, h2, h3, h4 { font-family: var(--ff-head); line-height: 1.2; letter-spacing: -.03em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }
p { max-width: 72ch; }
.lead {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  line-height: 1.6;
  color: var(--clr-text-muted);
  font-weight: 300;
}
.section--dark .lead { color: rgba(255,255,255,.8); }
.section--dark h2 { color: #fff; }

/* ── Hero Section ── */
.hero {
  position: relative;
  background: var(--clr-hero-grad);
  color: #fff;
  padding: var(--sp-xl) 0;
  overflow: hidden;
  min-height: 88vh;
  display: flex;
  align-items: center;
}
.hero__bg-pattern {
  position: absolute;
  inset: 0;
  opacity: .07;
  background-image:
    radial-gradient(circle at 20% 50%, #fff 1px, transparent 1px),
    radial-gradient(circle at 80% 20%, #fff 1px, transparent 1px);
  background-size: 60px 60px, 40px 40px;
  pointer-events: none;
}
.hero__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .25;
  pointer-events: none;
}
.hero__blob--1 { width: 600px; height: 600px; background: #2d9e6b; top: -200px; right: -100px; }
.hero__blob--2 { width: 400px; height: 400px; background: #5cb85c; bottom: -100px; left: -50px; }
.hero__content { position: relative; z-index: 2; max-width: 760px; }
.hero__tagline {
  display: inline-block;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: var(--radius-pill);
  padding: .4rem 1.2rem;
  font-size: .875rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: #c8f0d8;
  margin-bottom: 1.5rem;
}
.hero h1 { color: #fff; margin-bottom: 1.25rem; }
.hero .lead { color: rgba(255,255,255,.85); margin-bottom: 2.5rem; max-width: 60ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid rgba(255,255,255,.15);
  max-width: 540px;
}
.stat__number {
  font-family: var(--ff-head);
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.stat__label { font-size: .85rem; color: rgba(255,255,255,.7); margin-top: .35rem; }

/* ── Cards ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--clr-surface);
  border-radius: var(--radius-md);
  padding: 2rem;
  border: 1px solid var(--clr-border);
  transition: transform var(--tr-med), box-shadow var(--tr-med);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px var(--clr-shadow);
}
.card__icon {
  width: 56px;
  height: 56px;
  background: var(--clr-primary-lt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.card__icon svg { width: 28px; height: 28px; color: var(--clr-primary); }
.card h3 { margin-bottom: .75rem; }
.card p { color: var(--clr-text-muted); font-size: .95rem; }

/* ── Process Steps ── */
.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0;
  counter-reset: steps;
  position: relative;
}
.process::after {
  content: '';
  position: absolute;
  top: 36px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--clr-border);
  z-index: 0;
}
.process__step {
  text-align: center;
  padding: 2rem 1.5rem;
  position: relative;
  z-index: 1;
}
.process__num {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--clr-primary);
  color: #fff;
  font-family: var(--ff-head);
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  border: 4px solid var(--clr-bg);
  box-shadow: 0 0 0 2px var(--clr-primary);
}
.process__step h4 { margin-bottom: .5rem; }
.process__step p { font-size: .9rem; color: var(--clr-text-muted); max-width: 20ch; margin: 0 auto; }

/* ── Applications Grid ── */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}
.app-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--clr-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--clr-border);
  transition: all var(--tr-fast);
  text-decoration: none;
  color: var(--clr-text);
}
.app-item:hover {
  border-color: var(--clr-primary);
  background: var(--clr-primary-lt);
  color: var(--clr-primary);
  transform: translateX(4px);
}
.app-item svg { width: 28px; height: 28px; flex-shrink: 0; color: var(--clr-accent2); }
.app-item span { font-weight: 500; font-size: .95rem; }

/* ── FAQ ── */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  margin-bottom: .75rem;
  overflow: hidden;
  background: var(--clr-surface);
}
.faq-item summary {
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  list-style: none;
  transition: background var(--tr-fast);
}
.faq-item summary:hover { background: var(--clr-primary-lt); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--clr-primary);
  transition: transform var(--tr-med);
}
details[open] summary .faq-icon { transform: rotate(45deg); }
.faq-item .faq-body {
  padding: 0 1.5rem 1.25rem;
  color: var(--clr-text-muted);
  line-height: 1.75;
  font-size: .95rem;
}

/* ── Contact Form ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  align-items: start;
}
.contact-info h2 { margin-bottom: 1rem; }
.contact-info p { color: var(--clr-text-muted); margin-bottom: 2rem; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.contact-item svg { width: 22px; height: 22px; color: var(--clr-primary); margin-top: .15rem; flex-shrink: 0; }
.contact-item strong { display: block; font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--clr-text-muted); margin-bottom: .2rem; }

.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: .875rem;
  font-weight: 600;
  margin-bottom: .4rem;
  color: var(--clr-text);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: .75rem 1rem;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font-family: var(--ff-body);
  font-size: 1rem;
  color: var(--clr-text);
  background: var(--clr-surface);
  transition: border-color var(--tr-fast);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: var(--focus-ring);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-check { display: flex; align-items: flex-start; gap: .75rem; }
.form-check input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: .15rem;
  accent-color: var(--clr-primary);
  flex-shrink: 0;
}
.form-check label { font-size: .875rem; color: var(--clr-text-muted); font-weight: 400; }
.form-success {
  display: none;
  padding: 1rem 1.25rem;
  background: var(--clr-primary-lt);
  border: 1px solid var(--clr-accent);
  border-radius: var(--radius-sm);
  color: var(--clr-primary);
  font-weight: 600;
  margin-top: 1rem;
}

/* ── Benefits Banner ── */
.benefits-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  padding: 2.5rem;
  background: var(--clr-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
}
.benefit-item {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-weight: 600;
  font-size: .95rem;
}
.benefit-item svg { width: 22px; height: 22px; color: var(--clr-accent); }

/* ── Method Detail Pages ── */
.method-hero {
  background: var(--clr-hero-grad);
  color: #fff;
  padding: var(--sp-lg) 0;
}
.method-hero h1 { color: #fff; margin-bottom: 1rem; }
.method-hero .lead { color: rgba(255,255,255,.85); }
.breadcrumb {
  font-size: .85rem;
  color: rgba(255,255,255,.7);
  margin-bottom: 1.5rem;
  display: flex;
  gap: .5rem;
  align-items: center;
  flex-wrap: wrap;
}
.breadcrumb a { color: rgba(255,255,255,.8); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb svg { width: 14px; height: 14px; }

/* ── Table ── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .95rem;
  background: var(--clr-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 2px 12px var(--clr-shadow);
}
.data-table th {
  background: var(--clr-primary);
  color: #fff;
  padding: .875rem 1.25rem;
  text-align: left;
  font-weight: 600;
}
.data-table td {
  padding: .875rem 1.25rem;
  border-bottom: 1px solid var(--clr-border);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:nth-child(even) td { background: var(--clr-primary-lt); }

/* ── CTA Section ── */
.cta-box {
  background: var(--clr-hero-grad);
  border-radius: var(--radius-lg);
  padding: 4rem 3rem;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(255,255,255,.1) 0%, transparent 70%);
}
.cta-box h2 { color: #fff; margin-bottom: 1rem; position: relative; }
.cta-box p { color: rgba(255,255,255,.85); max-width: 55ch; margin: 0 auto 2rem; position: relative; }
.cta-box .btn-actions { position: relative; display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

/* ── Footer ── */
.site-footer {
  background: #0d1f14;
  color: rgba(255,255,255,.75);
  padding: var(--sp-lg) 0 var(--sp-md);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer__brand { max-width: 320px; }
.footer__logo {
  font-family: var(--ff-head);
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: 1rem;
}
.footer__logo svg { width: 32px; height: 32px; }
.footer__tagline { font-size: .9rem; line-height: 1.6; }
.footer__title {
  font-family: var(--ff-head);
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: #fff;
  margin-bottom: 1rem;
}
.footer__links { list-style: none; }
.footer__links li { margin-bottom: .5rem; }
.footer__links a {
  color: rgba(255,255,255,.7);
  text-decoration: none;
  font-size: .9rem;
  transition: color var(--tr-fast);
}
.footer__links a:hover { color: #fff; text-decoration: underline; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: .85rem;
  color: rgba(255,255,255,.55);
}
/* footer__bottom p dziedziczy kolor z rodzica */
.footer__bottom p { color: inherit; }
/* footer__bottom a – takie same style jak footer__links a */
.footer__bottom a {
  color: rgba(255,255,255,.7);
  text-decoration: none;
  transition: color var(--tr-fast);
}
.footer__bottom a:hover { color: #fff; text-decoration: underline; }
.footer__legal { display: flex; gap: 1.5rem; flex-wrap: wrap; }
/* footer__legal a – dziedziczą z footer__bottom a, nadpisujemy tylko dla pewności */
.footer__legal a { color: rgba(255,255,255,.7); text-decoration: none; }
.footer__legal a:hover { color: #fff; text-decoration: underline; }

/* ── Eco Badge ── */
.eco-badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .35rem 1rem;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius-pill);
  font-size: .8rem;
  font-weight: 600;
  color: #c8f0d8;
  letter-spacing: .04em;
}
.eco-badge svg { width: 14px; height: 14px; }

/* ── Highlight Box ── */
.highlight-box {
  background: var(--clr-primary-lt);
  border-left: 4px solid var(--clr-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
}
.highlight-box p { color: var(--clr-text); font-size: .95rem; max-width: none; }

/* ── Tag list ── */
.tag-list { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.tag {
  padding: .3rem .9rem;
  background: var(--clr-primary-lt);
  color: var(--clr-primary);
  border-radius: var(--radius-pill);
  font-size: .8rem;
  font-weight: 600;
  border: 1px solid rgba(26,107,58,.2);
}

/* ── Scroll-to-top ── */
#scrollTop {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--clr-primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--tr-med), transform var(--tr-med);
  z-index: 50;
  box-shadow: 0 4px 16px var(--clr-shadow);
}
#scrollTop.visible { opacity: 1; pointer-events: auto; }
#scrollTop:hover { transform: translateY(-3px); background: var(--clr-primary-dk); }
#scrollTop svg { width: 20px; height: 20px; }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}
.animate.in-view { opacity: 1; transform: translateY(0); }
.animate-delay-1 { transition-delay: .1s; }
.animate-delay-2 { transition-delay: .2s; }
.animate-delay-3 { transition-delay: .3s; }
.animate-delay-4 { transition-delay: .4s; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .process::after { display: none; }
}

@media (max-width: 768px) {
  :root { --sp-lg: 3rem; --sp-xl: 4rem; }
  .nav__links { display: none; flex-direction: column; position: absolute; top: 68px; left: -1.5rem; right: -1.5rem; background: #fff; border-top: 1px solid var(--clr-border); border-bottom: 1px solid var(--clr-border); padding: 1rem 1.5rem; gap: .25rem; box-shadow: 0 8px 24px rgba(0,0,0,.1); }
  .nav__links.open { display: flex; }
  .nav__burger { display: flex; }
  .hero { min-height: 70vh; }
  .hero__stats { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .form-row { grid-template-columns: 1fr; }
  .cta-box { padding: 3rem 1.5rem; }
  [data-contrast="high"] .nav__links { background: #111; border-bottom-color: var(--clr-primary); }
}

@media (max-width: 480px) {
  .hero__stats { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr; }
  .apps-grid { grid-template-columns: 1fr; }
}

/* ══ RESPONSIVE LAYOUT UTILITIES ══
   Zastępują inline style="display:grid..." w metody.html i zastosowania.html
   ====================================================== */

/* Dwukolumnowy layout sekcji metody (tekst + karty zalet) */
.method-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

/* Nagłówek sekcji zastosowań: ikona | treść */
.app-section-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  align-items: start;
}

/* Ikona 64×64 w nagłówku sekcji zastosowań */
.app-section-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.app-section-icon--light { background: var(--clr-primary-lt); }
.app-section-icon--dark  { background: rgba(255,255,255,.5); }

/* Mini siatka 2 kolumn wewnątrz treści (metody stosowane) */
.mini-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.25rem;
}

/* Pojedyncza kolumna cards-grid (lista zalet w metodzie biologicznej) */
.cards-grid--single { grid-template-columns: 1fr !important; }

/* ── Screen-reader only ── */
.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;
}

/* ── Tabela porównawcza: wrapper ── */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  margin-top: 0;
}
.table-scroll:focus-within { outline: 2px solid var(--clr-primary); }

/* Desktop: pokaż tabelę, ukryj karty */
.table-scroll--desktop { display: block; }
.compare-cards         { display: none; }

/* ── Compare cards (widok mobilny) ── */
.compare-cards {
  display: none;
  flex-direction: column;
  gap: 1rem;
}
.compare-card {
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.compare-card--featured {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px var(--clr-primary-lt);
}
.compare-card__header {
  background: var(--clr-bg);
  padding: 1rem 1.25rem .9rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  border-bottom: 1px solid var(--clr-border);
}
.compare-card--featured .compare-card__header {
  background: var(--clr-primary);
}
.compare-card__title {
  font-family: var(--ff-head);
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
  color: var(--clr-text);
}
.compare-card--featured .compare-card__title { color: #fff; }
.compare-card__badge {
  font-size: .68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  background: #fff;
  color: var(--clr-primary);
  padding: .2rem .6rem;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  flex-shrink: 0;
}
.compare-card__rows {
  list-style: none;
  margin: 0;
  padding: 0;
}
.compare-card__rows li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: .75rem;
  padding: .65rem 1.25rem;
  border-bottom: 1px solid var(--clr-border);
  font-size: .88rem;
}
.compare-card__rows li:last-child { border-bottom: none; }
.compare-card__rows li:nth-child(even) { background: rgba(0,0,0,.02); }
.compare-card__key {
  color: var(--clr-text-muted);
  font-weight: 600;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  flex-shrink: 0;
  min-width: 90px;
}
.compare-card__val {
  color: var(--clr-text);
  text-align: right;
  font-size: .88rem;
}
.compare-card__val--yes     { color: #1a7a3a; font-weight: 700; }
.compare-card__val--no      { color: #c0392b; font-weight: 700; }
.compare-card__val--neutral { color: var(--clr-text-muted); }

/* ── Media query: przełącz tabela ↔ karty ── */
@media (max-width: 700px) {
  .table-scroll--desktop { display: none !important; }
  .compare-cards         { display: flex !important; }
}

/* ── High contrast overrides ── */
/* Tabela – th ma jasno zielone tło w HC, tekst musi być czarny */
[data-contrast="high"] .data-table th { color: #000; }
[data-contrast="high"] .compare-card { border-color: var(--clr-primary); }
[data-contrast="high"] .compare-card--featured { box-shadow: 0 0 0 3px var(--clr-primary); }
[data-contrast="high"] .compare-card__val--yes { color: #00ff88; }
[data-contrast="high"] .compare-card__val--no  { color: #ff6b6b; }
[data-contrast="high"] .compare-card__rows li:nth-child(even) { background: rgba(255,255,255,.04); }

/* ── Media queries dla powyższych klas ── */
@media (max-width: 900px) {
  .method-cols {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 640px) {
  .app-section-header {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .app-section-icon {
    width: 52px;
    height: 52px;
  }
  .mini-grid-2 {
    grid-template-columns: 1fr;
  }
}

/* ── Print ── */
@media print {
  .site-nav, #scrollTop, .btn-contrast, .hero__blob, .hero__bg-pattern { display: none; }
  .hero { min-height: auto; padding: 2rem 0; }
  * { animation: none !important; transition: none !important; }
}