/* ============================================
   NevoCode — wspólny arkusz stylów
   Motyw jasny (domyślny) + ciemny (neutralnie szary)
   ============================================ */

:root {
  --bg: #ffffff;
  --bg-alt: #f4f7f9;
  --border: #e3e7eb;
  --text: #14171c;
  --text-dim: #5b6470;
  --accent: #01c7ee;
  --accent-text: #0092ac;
  --accent-dim: #00a8cc;
  --accent-rgb: 1, 199, 238;
  --accent-soft: rgba(var(--accent-rgb), 0.10);
  --footer-bg: #eef2f5;
  --footer-text: #4b5563;
  --shadow: 0 4px 18px rgba(20, 23, 28, 0.06);
  --shadow-hover: 0 18px 40px rgba(1, 199, 238, 0.18);
  --font-head: "Poppins", "Segoe UI", sans-serif;
  --font-body: "Poppins", "Segoe UI", sans-serif;
  --radius: 12px;
  --radius-nav: 18px;
  --maxw: 1080px;
}

[data-theme="dark"] {
  --bg: #1a1a1a;
  --bg-alt: #242424;
  --border: #3a3a3a;
  --text: #f0f0f0;
  --text-dim: #a8a8a8;
  --accent-text: #2bd8f5;
  --accent-soft: rgba(var(--accent-rgb), 0.16);
  --footer-bg: #141414;
  --footer-text: #b0b0b0;
  --shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 18px 44px rgba(1, 199, 238, 0.24);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

html { background-color: var(--bg); transition: background-color 0.25s ease; }

body {
  margin: 0;
  /* celowo BEZ background-color tutaj — tło daje .backdrop (pierwszy
     element w <body>, patrz niżej), żeby nigdy nie mogło się schować
     za własnym tłem strony */
  background-color: transparent;
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: color 0.25s ease;
  position: relative;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

h1, h2, h3 {
  font-family: var(--font-head);
  line-height: 1.15;
  margin: 0 0 0.5em 0;
  font-weight: 600;
}

p { margin: 0 0 1em 0; color: var(--text-dim); max-width: 62ch; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Duże, żywe tło gradientowe (fixed, za całą treścią) ---------- */

.backdrop {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.backdrop::before {
  /* subtelna baza na 100% ekranu, równomiernie góra-dół (nie tylko
     w rogach) — nigdzie, nawet na krótkich podstronach, nie robi
     się płasko biało między plamami a stopką */
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(var(--accent-rgb), 0.09), rgba(var(--accent-rgb), 0.05) 50%, rgba(var(--accent-rgb), 0.09)),
    radial-gradient(120% 100% at 15% 0%, rgba(var(--accent-rgb), 0.10), transparent 60%),
    radial-gradient(120% 100% at 85% 100%, rgba(var(--accent-rgb), 0.10), transparent 60%);
}

.blob {
  position: absolute;
  border-radius: 50%;
  /* bez filter: blur() - gradient i tak jest miękki, a blur 100px na 5 wielkich
     warstwach to główny powód lagów */
  will-change: transform;
  animation: float-slow 14s ease-in-out infinite;
}

.blob--1 { top: -200px; left: -200px; width: 720px; height: 720px; background: radial-gradient(circle, rgba(var(--accent-rgb), 0.38), transparent 70%); }
.blob--2 { top: 20%; right: -240px; width: 680px; height: 680px; background: radial-gradient(circle, rgba(var(--accent-rgb), 0.28), transparent 70%); animation-delay: 1.5s; }
.blob--3 { top: 50%; left: 50%; width: 760px; height: 760px; transform: translate(-50%, -50%); background: radial-gradient(circle, rgba(var(--accent-rgb), 0.14), transparent 72%); animation: none; will-change: auto; }
.blob--4 { bottom: -80px; left: 20%; width: 780px; height: 780px; background: radial-gradient(circle, rgba(var(--accent-rgb), 0.30), transparent 70%); }
.blob--5 { bottom: -40px; right: -160px; width: 640px; height: 640px; background: radial-gradient(circle, rgba(var(--accent-rgb), 0.24), transparent 70%); animation-delay: 1.5s; }

@keyframes float-slow {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(30px, -40px, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .blob { animation: none; }
}
@media (max-width: 820px) {
  .blob--3, .blob--4 { display: none; }
}

/* ---------- Nawigacja (zaokrąglony, pływający pasek) ---------- */

.nav { position: sticky; top: 0; z-index: 50; padding: 14px 20px 0 20px; }

.nav__bar {
  max-width: var(--maxw);
  margin: 0 auto;
  background: color-mix(in srgb, var(--bg) 96%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-nav);
  box-shadow: var(--shadow);
  padding: 10px 16px 10px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.nav__logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--text);
  letter-spacing: 0.01em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}
.nav__logo span { color: var(--accent-text); }

.nav__right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.nav__links { display: flex; gap: 22px; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }

.nav__links a {
  position: relative;
  display: inline-block;
  text-decoration: none;
  padding: 8px 2px;
  color: var(--text);
  font-size: 0.94rem;
  transition: color 0.15s ease;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}
.nav__links a:hover, .nav__links a:focus-visible { color: var(--accent-text); }
.nav__links a:hover::after, .nav__links a:focus-visible::after, .nav__links a.is-active::after { transform: scaleX(1); }
.nav__links a.is-active { color: var(--accent-text); }

.theme-toggle {
  width: 38px; height: 38px; flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 50%;
  background: var(--bg-alt); color: var(--text);
  cursor: pointer;
  transition: border-color 0.15s ease, transform 0.15s ease, color 0.15s ease;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent-text); transform: rotate(12deg); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ---------- Sekcje ogólne ---------- */

section { padding: 72px 0; }
.section--alt { background: var(--bg-alt); }
.eyebrow { color: var(--accent-text); font-size: 0.85rem; font-weight: 600; margin: 0 0 10px 0; }
.section-head { max-width: 640px; margin-bottom: 40px; }

/* ---------- Hero ---------- */

.hero { padding: 96px 0 72px 0; }
.hero--compact { padding: 56px 0 32px 0; }
.hero h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); max-width: 16ch; }
.hero p { font-size: 1.08rem; max-width: 58ch; }
.hero__actions { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }

.btn {
  display: inline-block; text-decoration: none; padding: 12px 24px;
  border-radius: 999px; font-size: 0.96rem; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; font-family: var(--font-body);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.btn--accent { background: var(--accent); color: #052833; box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.35); }
.btn--accent:hover { background: var(--accent-dim); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(var(--accent-rgb), 0.45); }
.btn--outline { border-color: var(--border); background: transparent; color: var(--text); }
.btn--outline:hover { border-color: var(--accent); color: var(--accent-text); transform: translateY(-2px); }

/* ---------- Opinie klientów (marquee) ---------- */

.reviews { overflow: hidden; }
.marquee {
  overflow: hidden;
}
.marquee__track {
  display: flex; width: max-content; padding: 8px 0; will-change: transform;
  /* ruch w czystym CSS (kompozytor GPU) zamiast JS na każdą klatkę */
  animation: marquee-scroll var(--marquee-duration, 40s) linear infinite;
}
.marquee__track.is-reverse { animation-direction: reverse; }
@keyframes marquee-scroll {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-25%, 0, 0); } /* 4 kopie zestawu = przesuwamy o jedną */
}
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; } }
.marquee + .marquee { margin-top: 16px; }

.review-card {
  flex: 0 0 auto; width: 300px; margin-right: 16px;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--accent); }
.review-card p { color: var(--text); font-size: 0.94rem; margin-bottom: 12px; }
.review-card__author { color: var(--text-dim); font-size: 0.85rem; }

/* ---------- Statystyki ---------- */

.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat { padding: 22px; border-radius: var(--radius); border: 1px solid transparent; transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease; }
.stat:hover { transform: translateY(-4px); border-color: var(--border); background: var(--bg); }
.stat b { display: block; font-family: var(--font-head); font-size: 2.3rem; color: var(--accent-text); font-weight: 700; }
.stat span { color: var(--text-dim); font-size: 0.92rem; }

/* ---------- FAQ ---------- */

.faq-item { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; background: var(--bg); overflow: hidden; transition: border-color 0.2s ease, box-shadow 0.2s ease; }
.faq-item:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.faq-item summary { padding: 18px 20px; cursor: pointer; font-family: var(--font-head); font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--accent-text); font-size: 1.3rem; flex: 0 0 auto; transition: transform 0.2s ease; }
.faq-item[open] summary::after { content: "–"; }
.faq-item__body { padding: 0 20px 18px 20px; margin: 0; color: var(--text-dim); }

/* słowa odpowiedzi — każde osobno, pojawiają się po kolei gdy
   pytanie jest otwarte (sterowane natywnym atrybutem [open] na
   <details>, bez dodatkowego JS do animowania) */
.faq-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.faq-item__body.is-animated .faq-word {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .faq-word { opacity: 1; transform: none; transition: none; }
}

/* ---------- Cennik ---------- */

.pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.price-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease; }
.price-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: var(--accent); }
.price-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.price-card p { font-size: 0.95rem; margin-bottom: 18px; }
.price-card .btn { padding: 9px 18px; font-size: 0.88rem; }
.price-tag { display: inline-block; color: var(--accent-text); font-size: 0.82rem; font-weight: 600; border: 1px solid var(--accent); border-radius: 999px; padding: 3px 12px; margin-bottom: 14px; }

/* ---------- Pomoc / formularz ---------- */

.form-box { max-width: 520px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); }
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 0.9rem; color: var(--text-dim); margin-bottom: 7px; }
.field input, .field textarea {
  width: 100%; background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px; color: var(--text); font-family: var(--font-body); font-size: 0.96rem; resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field-hidden { position: absolute; left: -9999px; }
.form-msg { margin-top: 16px; font-size: 0.92rem; display: none; }
.form-msg.is-success { display: block; color: #0a9b5c; }
[data-theme="dark"] .form-msg.is-success { color: #6ee7a8; }

/* ---------- Kontakt ---------- */

.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.contact-grid--2 { grid-template-columns: repeat(2, 1fr); max-width: 680px; margin: 0 auto; }
@media (max-width: 560px) { .contact-grid--2 { grid-template-columns: 1fr; } }
.contact-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease; }
.contact-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: var(--accent); }
.contact-card .eyebrow { margin-bottom: 6px; }
.contact-card a, .contact-card p { color: var(--text); font-size: 1rem; word-break: break-word; }

/* ---------- Stopka ---------- */

.footer {
  background:
    linear-gradient(180deg, rgba(var(--accent-rgb), 0.06), transparent 140px),
    var(--footer-bg);
  color: var(--footer-text);
  padding: 44px 0 28px 0;
  transition: background 0.2s ease;
}
.footer__inner { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer__brand { font-family: var(--font-head); font-weight: 700; color: var(--text); margin-bottom: 8px; }
.footer__col h4 { font-family: var(--font-head); color: var(--text); font-size: 0.92rem; margin: 0 0 12px 0; }
.footer__col ul { list-style: none; margin: 0; padding: 0; }
.footer__col li { margin-bottom: 8px; font-size: 0.9rem; }
.footer__col a { text-decoration: none; color: var(--footer-text); transition: color 0.15s ease; }
.footer__col a:hover { color: var(--accent-text); }
.footer__bottom { max-width: var(--maxw); margin: 32px auto 0 auto; padding: 20px 24px 0 24px; border-top: 1px solid var(--border); font-size: 0.82rem; color: var(--text-dim); }

/* ---------- Animacje przy scrollowaniu ---------- */

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Responsywność ---------- */

@media (max-width: 820px) {
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid, .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .stats__grid { grid-template-columns: 1fr; }
  section { padding: 52px 0; }
  .hero { padding: 64px 0 48px 0; }
  .nav { padding: 10px 12px 0 12px; }
  .nav__bar { border-radius: 16px; padding: 10px 14px; }
  .nav__right { width: 100%; justify-content: space-between; }
}