*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
    color: var(--text);
    background: var(--bg);
}

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

a {
    color: inherit;
    text-decoration: none;
}

:root {
    --brand: #dc2626; 
    --bg: #0b1220;    
    --text: #e5e7eb;  
    --muted: #94a3b8; 
    --card: #111827;  
    --radius: 16px;
    --shadow: 0 10px 30px rgba(2, 6, 23, .28);
    --container: 1200px;
}


.container {
    max-width: var(--container);
    margin-inline: auto;
    padding: 24px;
}

header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(8px);
    background: rgba(2, 6, 23, .6);
    border-bottom: 1px solid rgba(148, 163, 184, .16);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    text-decoration: none;
    color: var(--text);
}

.brand img {
    width: 104px;
    height: 104px;
    border-radius: 50%;
    object-fit: cover;
    
    clip-path: circle(46% at 50% 50%);
}

@media (max-width: 520px) {
    .brand img {
        width: 84px;
        height: 84px;
        clip-path: circle(48% at 50% 50%);
    }
}

.menu {
    display: flex;
    gap: 18px;
    align-items: center;
}

.menu a {
    color: var(--text);
    font-weight: 600;
    opacity: .9;
}

.menu a:hover {
    opacity: 1;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 12px;
    font-weight: 700;
    border: 1px solid rgba(148, 163, 184, .16);
    background: var(--card);
    color: var(--text);
    box-shadow: var(--shadow);
}

.btn--brand {
    background: var(--brand);
    color: #fff;
    border-color: transparent;
}


.hero {
    
    background:
        linear-gradient(rgba(2,6,23,.45), rgba(2,6,23,.45)),
        url('assets/background01.png') center/contain no-repeat;
    color: var(--text);
    
    min-height: clamp(320px, 60vh, 560px);
}

.hero-wrap {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
    align-items: center;
    padding-block: 56px;
}




.hero h1 {
    font-size: clamp(28px, 6vw, 56px);
    line-height: 1.05;
    margin: 0 0 12px;
    letter-spacing: -0.02em;
}

.hero p {
    color: #cbd5e1;
    margin: 0 0 22px;
}

.hero .cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.avatar {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, .3);
    box-shadow: var(--shadow);
    object-fit: cover;
}

@media (min-width: 880px) {
    .hero-wrap {
        grid-template-columns: 1fr; 
        padding-block: 80px;
    }
}


section {
    padding-block: 56px;
}

.section-title {
    font-size: clamp(22px, 4vw, 36px);
    margin: 0 0 16px;
    letter-spacing: -0.01em;
}

.muted {
    color: var(--muted);
}

/* O nas: ciaśniej między akapitami, większy odstęp pod ostatnim */
#o-nas .container > p.muted {
    margin: 0 0 8px;
}

#o-nas .container > p.muted:last-of-type {
    margin-bottom: 24px;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.card {
    background: var(--card);
    border: 1px solid rgba(148, 163, 184, .12);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}


.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
}

.gallery img {
    border-radius: 14px;
    aspect-ratio: 4/3;
    object-fit: cover;
    cursor: zoom-in;
}




.reveal { 
    opacity: 1;
    transform: none;
}

.reveal.is-visible { 
    opacity: 1;
    transform: none;
}

.btn--brand:hover { filter: brightness(0.95); }



.hero {
    background:
        linear-gradient(rgba(2,6,23,.45), rgba(2,6,23,.45)),
        image-set(url('assets/background01.webp') type('image/webp'), url('assets/background01.png') type('image/png')) center/contain no-repeat;
}


.site-footer {
    border-top: 1px solid rgba(148, 163, 184, .16);
    background: rgba(2, 6, 23, .6);
}
.footer-wrap {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 16px;
    align-items: center;
}
@media (max-width: 640px) {
    .footer-wrap { grid-template-columns: 1fr; }
}

/* Utility */
.mt-16 { margin-top: 16px; }

/* Focus visibility */
.btn:focus-visible,
.menu a:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, .8);
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
  z-index: 1000;
}

.lightbox.is-open { opacity: 1; visibility: visible; }

.lightbox__img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.lightbox__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: rgba(0,0,0,.6);
  border: 1px solid rgba(148, 163, 184, .3);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
@media (max-width: 720px) {
    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }

    .brand {
        flex: 1 1 100%;
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 10px;
    }

    .brand img {
        margin-inline: auto;
    }

    .menu {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 12px;
    }
}