/* Reset + bazowe */
*{ box-sizing:border-box }
html{ scroll-behavior:smooth }
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Helvetica,Arial,sans-serif;
  line-height:1.6;
  background:var(--bg);
  color:var(--text);
}
a{ color:var(--link, #0F90E6) }
.container{ width:min(1100px,92%); margin-inline:auto }

/* ====== TOKENS: LIGHT ====== */
:root{
  --primary:#E63946;
  --brand-navy:#0F3D63;
  --bg:#ffffff;
  --surface:#f7fbff;
  --surface-2:#eaf3fb;
  --border:#eef2f7;
  --text:#111;
  --muted:#3d4954;
  --link:#0F3D63;
  --hero-bg: var(--brand-navy);
  --hero-panel: 52%;
}

/* ====== TOKENS: DARK (manual) ====== */
html.theme-dark{
  --primary:#FF5C6B;
  --brand-navy:#0B2A44;
  --bg:#0b1220;
  --surface:#111827;
  --surface-2:#0f172a;
  --border:#263244;
  --text:#e6edf3;
  --muted:#94a3b8;
  --link:#8ac4ff;
  --hero-bg:#0b2236;
}

/* ====== TOKENS: AUTO prefer-dark ====== */
@media (prefers-color-scheme: dark){
  html:not(.theme-light){
    --primary:#FF5C6B; --brand-navy:#0B2A44; --bg:#0b1220; --surface:#111827; --surface-2:#0f172a;
    --border:#263244; --text:#e6edf3; --muted:#94a3b8; --link:#8ac4ff; --hero-bg:#0b2236;
  }
}

/* ====== HEADER ====== */
.header{
  position:sticky; top:0; z-index:1000;
  background: rgba(22, 26, 33, 0.82);
  -webkit-backdrop-filter: saturate(140%) blur(6px);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom:1px solid rgba(255,255,255,0.08);
}
html.theme-light .header{ background: rgba(255,255,255,.9); border-bottom:1px solid var(--border); }

.nav{ display:flex; gap:24px; align-items:center; justify-content:space-between; padding:12px 0 }
.brand{ display:flex; gap:12px; align-items:center; text-decoration:none }
.header .nav a{ text-decoration:none; font-weight:600; color:#e6edf3 }
.header .nav a:hover{ color:#ffffff; opacity:.9 }
html.theme-light .header .nav a{ color:#1a2633 }
html.theme-light .header .nav a:hover{ color:#0F3D63 }

/* ====== HERO ====== */
/* 75% szerokości + max-height nie większy niż wysokość obrazu */
.hero{
  width:min(1100px, 75vw);
  margin-inline:auto;
  position:relative;
  overflow:hidden;
  background: var(--hero-bg);
  color:#fff;
  padding: 72px 0 64px;
  max-height: var(--hero-img-h, 560px);
}
.hero::before,
.hero::after{
  content:""; position:absolute; inset:0; z-index:1;
  background-repeat:no-repeat, no-repeat;
  background-position:right center, right center;
  background-size: var(--hero-panel) auto, var(--hero-panel) auto;
  transition: opacity 700ms ease;
}
.hero::before{
  background-image:
    linear-gradient(to left,
      rgba(11,34,54,0) 0%,
      rgba(11,34,54,0.08) 22%,
      rgba(11,34,54,0.22) 45%,
      rgba(11,34,54,0.50) 66%,
      rgba(11,34,54,0.78) 82%,
      var(--hero-bg) 100%),
    var(--hero-img-current, url("assets/photos/reg1.jpg"));
  opacity:1;
}
.hero::after{
  background-image:
    linear-gradient(to left,
      rgba(11,34,54,0) 0%,
      rgba(11,34,54,0.08) 22%,
      rgba(11,34,54,0.22) 45%,
      rgba(11,34,54,0.50) 66%,
      rgba(11,34,54,0.78) 82%,
      var(--hero-bg) 100%),
    var(--hero-img-next, url("assets/photos/reg2.jpg"));
  opacity:0;
}
.hero.is-fading::after{ opacity:1 }
.hero .container{ position:relative; z-index:2 }

.hero h1{ margin:0 0 10px; font-size:clamp(28px,4.1vw,36px) }
.hero p{ margin:0 0 20px; color:#d6e5f5 }

/* ====== CTA Buttons ====== */
.button{ appearance:none; border:none; border-radius:10px; padding:12px 18px; font-weight:700; cursor:pointer; text-decoration:none }
.button.primary{ background:var(--primary); color:#fff }
.button.secondary{ background:transparent; color:var(--text); border:2px solid var(--border) }

/* ====== SEKCJE ====== */
.section{ padding:60px 0 }
.features{ background:var(--surface); border-top:1px solid var(--border); border-bottom:1px solid var(--border) }
.grid{ display:grid; grid-template-columns:repeat(12,1fr); gap:18px }
.cards .card{ grid-column:span 12; background:var(--surface-2); border:1px solid var(--border); border-radius:14px; padding:18px; box-shadow:0 1px 2px rgba(0,0,0,.04); display:grid; grid-template-columns:1fr; gap:14px; align-items:center }
.cards .card h3{ margin:0; font-size:18px }
.cards .card p{ margin:0; color:var(--muted) }
@media(min-width:720px){ .cards .card{ grid-column:span 6 } }
@media(min-width:980px){ .cards .card{ grid-column:span 4 } }

.list{ display:grid; gap:8px; margin:0; padding:0; list-style:none }
.kontakt{ display:grid; grid-template-columns:1fr; gap:22px }
@media(min-width:860px){ .kontakt{ grid-template-columns:1.4fr .8fr } }

/* Formularz */
.form label{ display:block; margin-bottom:12px; color:var(--text) }
.form input, .form textarea{ width:100%; padding:10px 12px; border-radius:10px; border:1px solid var(--border); background:var(--surface-2); color:var(--text) }

/* FOOTER */
.footer{ padding:28px 0; color:#8ea0b5; border-top:1px solid var(--border) }

/* Offset dla #anchorów pod sticky headerem */
:target{ scroll-margin-top: 84px }

/* prefers-reduced-motion */
@media (prefers-reduced-motion: reduce){ .hero::before, .hero::after{ transition: none; } }

/* Przyciski w nawigacji (bez zmian w HTML) */
.header .nav nav a{
  display:inline-block;
  padding:10px 14px;
  border-radius:10px;
  font-weight:700;
  text-decoration:none;
  line-height:1;
  border:2px solid var(--border);
  background:transparent;
  color: var(--text);
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .06s ease;
}

/* Hover / active */
.header .nav nav a:hover{
  background: var(--surface-2);
  border-color: var(--border);
}
.header .nav nav a:active{
  transform: translateY(1px);
}

/* Kontrast w headerze ciemnym */
html.theme-dark .header .nav nav a{
  border-color: rgba(255,255,255,.16);
  color:#e6edf3;
}
html.theme-dark .header .nav nav a:hover{
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.24);
}

/* W jasnym nagłówku zachowaj dotychczasowy wygląd kolorów */
html.theme-light .header .nav nav a{
  color:#1a2633;
}
html.theme-light .header .nav nav a:hover{
  color:#0F3D63;
}