/* ===== Reset i podstawy ===== */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Open Sans', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: #0f172a;
  line-height: 1.6;
  background: #ffffff;
}
img { max-width: 100%; height: auto; display: block; }
a { color: #0e7490; text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }
.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;
}
.container { width: min(1100px, 92%); margin: 0 auto; }
.nowrap { white-space: nowrap; }

/* ===== Top bar (fixed) ===== */
.top-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: #0f172a;
  color: #e5e7eb;
  font-size: 0.95rem;
}
.top-bar__inner { display: flex; align-items: center; justify-content: space-between; min-height: 40px; }
.top-bar a { color: #e5e7eb; text-decoration: none; }
.top-bar a:hover { text-decoration: underline; }
.top-bar-contact { display: flex; gap: 1rem; flex-wrap: wrap; }
.link-plain:focus { outline: 2px solid #38bdf8; outline-offset: 2px; }

/* ===== Header (sticky under top-bar) ===== */
.main-header { position: sticky; top: 40px; z-index: 999; background: #ffffffcc; backdrop-filter: blur(6px); border-bottom: 1px solid #e5e7eb; transition: background 200ms ease, box-shadow 200ms ease; }
.header-inner { display: flex; align-items: center; gap: 1rem; min-height: 64px; }
.logo { height: 44px; width: auto; }

.main-nav { margin-left: auto; }
.nav-links { display: flex; gap: 1rem; list-style: none; padding: 0; margin: 0; }
.nav-links a { display: inline-block; padding: 0.5rem 0.75rem; border-radius: 10px; transition: background-color 150ms ease, transform 150ms ease; }
.nav-links a:hover { transform: translateY(-1px); }
.nav-links a[aria-current="page"], .nav-links a.active { background: #f1f5f9; text-decoration: none; }

.hamburger { display: none; background: transparent; border: 0; padding: 0.5rem; border-radius: 8px; }
.hamburger:focus { outline: 2px solid #38bdf8; outline-offset: 2px; }
.hamburger span { display: block; width: 24px; height: 2px; background: #0f172a; margin: 5px 0; transition: transform 150ms ease, opacity 150ms ease; }

/* ===== Hero ===== */
.hero-section { padding: 110px 0 48px; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; align-items: center; gap: 2rem; }
.hero-copy h1 { font-family: 'Montserrat', sans-serif; line-height: 1.2; margin: 0 0 0.75rem 0; font-size: clamp(1.8rem, 4vw, 2.5rem); }
.cta-row { display: flex; gap: 0.75rem; margin-top: 1rem; }
.cta-button, .cta-button-secondary { display: inline-block; padding: 0.75rem 1rem; border-radius: 12px; font-weight: 600; transition: transform 120ms ease, box-shadow 120ms ease, background 150ms ease; }
.cta-button { background: #0891b2; color: white; }
.cta-button:hover, .cta-button:focus { box-shadow: 0 8px 20px rgba(8,145,178,.25); transform: translateY(-1px); }
.cta-button-secondary { background: #e2e8f0; color: #0f172a; }
.cta-button-secondary:hover, .cta-button-secondary:focus { background: #cbd5e1; }
.cta-button.big, .cta-button-secondary.big { padding: 0.9rem 1.25rem; font-size: 1.05rem; border-radius: 14px; }

.hero-image { width: 100%; max-width: 460px; border-radius: 16px; box-shadow: 0 8px 24px rgba(2,6,23,.15); }

/* ===== Services ===== */
.services-section { padding: 40px 0; }
.services-section h2 { font-family: 'Montserrat', sans-serif; font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 0.5rem; }
.section-subtitle { color: #334155; margin-bottom: 1.25rem; }
.offer-details-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
.offer-item { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 1rem; align-items: start; padding: 1rem; border: 1px solid #e5e7eb; border-radius: 16px; }
.offer-image { border-radius: 12px; box-shadow: 0 6px 18px rgba(2,6,23,.08); }
.benefits-list { padding-left: 1.1rem; }

/* ===== Testimonials (accessible carousel) ===== */
.testimonials-section { padding: 32px 0; background: #0f172a; color: #e5e7eb; }
.testimonials-section h2 { font-family: 'Montserrat', sans-serif; margin-top: 0; }
.testimonial-list { display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 2rem) / 3); gap: 1rem; overflow: hidden; scroll-behavior: smooth; }
.testimonial-card { background: #111827; border: 1px solid #1f2937; border-radius: 14px; padding: 1rem; box-shadow: 0 8px 24px rgba(0,0,0,.25); }
.testimonial-author { font-weight: 600; margin-top: 0.5rem; color: #f8fafc; }
.testimonial-meta { font-size: .9rem; color: #cbd5e1; }
.slider-controls { display: flex; gap: 0.5rem; margin-top: 0.75rem; }
.slider-btn { background: #e2e8f0; color: #0f172a; border: 0; padding: 0.5rem 0.75rem; border-radius: 10px; cursor: pointer; transition: transform 120ms ease, box-shadow 120ms ease, background 150ms ease; }
.slider-btn:hover, .slider-btn:focus { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(226,232,240,.25); }
.slider-btn:focus { outline: 2px solid #38bdf8; outline-offset: 2px; }

/* ===== Blog preview ===== */
.blog-preview-section { padding: 32px 0; }

/* ===== Kontakt ===== */
.contact-section { padding: 32px 0 64px; }
.contact-quick { margin: 0 0 1rem; }
.contact-quick p { margin: .2rem 0; }

.contact-wrapper { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1.5rem; align-items: start; }
.company-details p { margin: 0.25rem 0; }

.contact-form { display: grid; gap: 0.75rem; padding: 1rem; border: 1px solid #e5e7eb; border-radius: 14px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 0.65rem 0.75rem; border: 1px solid #cbd5e1; border-radius: 10px; font-size: 1rem; }
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid #38bdf8; outline-offset: 2px; border-color: #38bdf8; }

/* Honeypot: niewidoczny i minimalny */
.hp { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; opacity: 0; }

/* ===== Komunikaty po wysyłce ===== */
.form-msg { padding: 1rem; border-radius: 12px; border: 1px solid #e5e7eb; }
.form-msg.success { background: #ecfdf5; border-color: #10b98133; }
.form-msg.error { background: #fef2f2; border-color: #ef444433; }

/* ===== Focus-visible (dla klawiatury) ===== */
a:focus-visible, button:focus-visible, .nav-links a:focus-visible, .slider-btn:focus-visible,
input:focus-visible, textarea:focus-visible, .cta-button:focus-visible, .cta-button-secondary:focus-visible {
  outline: 3px solid #38bdf8;
  outline-offset: 2px;
  border-radius: 10px;
}

/* ===== Footer ===== */
.main-footer { background: #0f172a; color: #e5e7eb; padding: 28px 0 0; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.footer-logo { height: 32px; width: auto; } /* małe logo */
.footer-col ul { padding-left: 0; list-style: none; margin: 0; }
.footer-col ul li { margin: .25rem 0; }
.footer-bottom { border-top: 1px solid #1f2937; margin-top: 1rem; padding: 0.75rem 0; text-align: center; }

/* ===== Responsywność ===== */
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .cta-button, .cta-button-secondary, .slider-btn, .nav-links a { transition: none !important; }
}
@media (max-width: 1024px) {
  .offer-item { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-section { padding-top: 120px; }
}
@media (max-width: 860px) {
  .testimonial-list { grid-auto-columns: calc(100% - 0.5rem); }
}
@media (max-width: 760px) {
  .nav-links { position: fixed; inset: 80px 16px auto 16px; flex-direction: column; background: #ffffff; border: 1px solid #e5e7eb; border-radius: 12px; padding: 0.75rem; display: none; box-shadow: 0 20px 40px rgba(2,6,23,.15); }
  .nav-links.show { display: flex; }
  .hamburger { display: inline-block; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
}