/* ============================================================
   KRYCHA — Portfolio Malarstwa i Fotografii
   Dark theme · CSS variables · Flexbox & Grid · Vanilla JS
   ============================================================ */

/* ---------- 1. Design tokens ---------- */
:root {
  /* deep charcoal / anthracite palette — no pure white */
  --bg:          #161618;
  --bg-soft:     #1c1c1e;
  --surface:     #232326;
  --surface-2:   #2a2a2e;
  --border:      #333338;
  --border-warm: #4a3a28;

  /* warm accent — amber & terracotta */
  --accent:      #e8a04c;
  --accent-soft: #f2c78f;
  --accent-2:    #c96f43;

  /* text */
  --text:        #eae7e1;
  --text-dim:    #a9a49b;
  --text-faint:  #7b766d;
  --text-muted-dark: #82807a;

  /* misc */
  --radius:      14px;
  --radius-sm:   10px;
  --shadow:      0 18px 40px rgba(0, 0, 0, .45);
  --shadow-soft: 0 8px 24px rgba(0, 0, 0, .35);
  --transition:  .3s cubic-bezier(.25, .6, .3, 1);
  --nav-h:       72px;

  --font-display: Georgia, "Times New Roman", serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---------- 2. Reset & base ---------- */
*,
*::before,
*::after { 
  box-sizing: border-box; 
  margin: 0; 
  padding: 0; 
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 12px);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

button { 
  font: inherit; 
  color: inherit; 
  background: none; 
  border: 0; 
  cursor: pointer; 
}

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

.wrap { 
  width: min(1180px, 92%); 
  margin-inline: auto; 
}

h1, h2, h3 { 
  font-family: var(--font-display); 
  font-weight: 500; 
  letter-spacing: .01em; 
}

.kicker {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  margin-top: .5rem;
}

.section-head { margin-bottom: 2.2rem; }
.section-head p { color: var(--text-dim); max-width: 62ch; margin-top: .6rem; }

/* ---------- 3. Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(22, 22, 24, .82);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: .04em;
  display: flex;
  align-items: baseline;
  gap: .3rem;
}

.logo::after {
  content: "";
  width: .5rem; 
  height: .5rem;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--accent-soft), var(--accent-2));
  transform: translateY(-.1rem);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  position: relative;
  font-size: .95rem;
  color: var(--text-dim);
  padding: .4rem 0;
  transition: color var(--transition);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; 
  bottom: 0;
  width: 100%; 
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.nav-links a:hover,
.nav-links a.active { color: var(--text); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }

/* Hamburger (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .5rem;
}

.nav-toggle span {
  width: 24px; 
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 4. Hero ---------- */
.hero {
  position: relative;
  min-height: calc(92vh - var(--nav-h));
  display: flex;
  align-items: center;
  background:
    linear-gradient(180deg, rgba(22,22,24,.55) 0%, rgba(22,22,24,.72) 55%, var(--bg) 100%),
    url("https://images.unsplash.com/photo-1506905925346-21bda4d32df4?auto=format&fit=crop&w=2000&q=80") center 30% / cover no-repeat;
}

.hero-content { padding: 6rem 0 7rem; }

.hero h1 {
  font-size: clamp(3rem, 8vw, 5.2rem);
  line-height: 1.05;
  margin: .6rem 0 1rem;
}

.hero .tagline {
  font-size: clamp(1.02rem, 2vw, 1.25rem);
  color: var(--text-dim);
  max-width: 46ch;
}

.hero .tagline strong { color: var(--accent-soft); font-weight: 500; }

.hero-actions { 
  display: flex; 
  flex-wrap: wrap; 
  gap: 1rem; 
  margin-top: 2.2rem; 
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.7rem;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .02em;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #1c1410;
  box-shadow: 0 10px 26px rgba(232, 160, 76, .25);
}

.btn-primary:hover { 
  transform: translateY(-2px); 
  box-shadow: 0 14px 32px rgba(232, 160, 76, .35); 
}

.btn-ghost {
  border: 1px solid var(--border-warm);
  color: var(--accent-soft);
  background: rgba(28, 28, 30, .5);
}

.btn-ghost:hover { 
  background: var(--surface-2); 
  transform: translateY(-2px); 
}

.scroll-cue {
  position: absolute;
  left: 50%; 
  bottom: 1.6rem;
  transform: translateX(-50%);
  color: var(--text-faint);
  font-size: 1.4rem;
  animation: bob 2.2s ease-in-out infinite;
}

@keyframes bob { 
  0%, 100% { transform: translate(-50%, 0); } 
  50% { transform: translate(-50%, 8px); } 
}

/* ---------- 5. Gallery ---------- */
.gallery-section { padding: 5.5rem 0 4rem; }

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-bottom: 2.4rem;
}

.filter-btn {
  padding: .55rem 1.25rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text-dim);
  font-size: .9rem;
  transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition);
}

.filter-btn:hover { 
  color: var(--text); 
  border-color: var(--border-warm); 
  transform: translateY(-1px); 
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  color: #1c1410;
  font-weight: 600;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 18px;
}

.gallery-item { transition: opacity .3s ease, transform .3s ease; }
.gallery-item.visible { opacity: 1; transform: none; }
.gallery-item.leaving { opacity: 0; transform: scale(.94); }
.gallery-item.hidden  { display: none; }

.card {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover,
.card:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card:focus-visible { 
  outline: 2px solid var(--accent); 
  outline-offset: 3px; 
}

.card img {
  width: 100%; 
  height: 100%;
  object-fit: cover;
  transition: transform .55s ease;
}

.card:hover img,
.card:focus-visible img { transform: scale(1.06); }

/* Title overlay */
.caption {
  position: absolute;
  inset: auto 0 0 0;
  display: flex;
  flex-direction: column;
  gap: .15rem;
  padding: 2.4rem 1.1rem .95rem;
  text-align: left;
  background: linear-gradient(180deg, transparent, rgba(12, 12, 14, .85));
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition);
}

.card:hover .caption,
.card:focus-visible .caption,
.card:focus-within .caption { 
  opacity: 1; 
  transform: none; 
}

.caption-title {
  font-family: var(--font-display);
  font-size: 1.08rem;
  color: var(--text);
}

.caption-cat {
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent-soft);
}

/* ---------- 6. About ---------- */
.about {
  background: #1d1a16;
  border-top: 1px solid var(--border-warm);
  border-bottom: 1px solid var(--border-warm);
  padding: 5.5rem 0;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(280px, 460px) 1fr;
  gap: 3.5rem;
  align-items: center;
}

.about-photo {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transform: rotate(-1.2deg);
}

.about-photo img { 
  width: 100%; 
  height: 100%; 
  object-fit: cover; 
}

.about-photo::after {
  content: "";
  position: absolute; 
  inset: 0;
  background: linear-gradient(160deg, rgba(232,160,76,.14), transparent 55%);
  pointer-events: none;
}

.about-text h2 { margin-bottom: 1.3rem; }
.about-text p { color: var(--text-dim); margin-bottom: 1.1rem; max-width: 60ch; }
.about-text p strong { color: var(--text); font-weight: 500; }
.about-text .lead { font-size: 1.12rem; color: var(--text); }

.about-chips { 
  display: flex; 
  flex-wrap: wrap; 
  gap: .6rem; 
  margin: 1.6rem 0 1.8rem; 
}

.chip {
  padding: .45rem 1rem;
  border: 1px solid var(--border-warm);
  border-radius: 999px;
  font-size: .84rem;
  color: var(--accent-soft);
  background: rgba(232, 160, 76, .07);
}

.signature {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--accent);
}

/* ---------- 7. Footer ---------- */
.footer {
  display: block;
  width: 100%;
  padding: 1.5rem 0;
  background: var(--bg);
  position: relative;
  z-index: 10;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  color: var(--text-faint);
  font-size: .9rem;
}

.footer-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0;
  flex: 1;
  min-width: 260px;
}

.footer-center span {
  margin: 0 0 2px 0;
  padding: 0;
  line-height: 1.1;
  display: inline-block;
}

.footer-rodo {
  font-size: 0.75rem;
  color: var(--text-muted-dark);
  max-width: 450px;
  line-height: 1.25;
}

.footer .logo { 
  font-size: 1.2rem; 
  color: var(--text-dim); 
}

.to-top {
  display: inline-flex; 
  align-items: center; 
  gap: .4rem;
  color: var(--text-dim);
  transition: color var(--transition);
}

.to-top:hover { color: var(--accent); }

/* ---------- 8. Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: rgba(10, 10, 12, .92);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s ease, visibility .35s ease;
}

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

.lb-figure {
  max-width: min(1100px, 94vw);
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(.94);
  transition: transform .35s ease;
}

.lightbox.open .lb-figure { transform: scale(1); }

.lb-figure img {
  max-width: 100%;
  max-height: 76vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}

.lb-caption {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: center;
  gap: .4rem 1.2rem;
  margin-top: 1.1rem;
  text-align: center;
}

.lb-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--text);
}

.lb-cat {
  font-size: .76rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--accent-soft);
}

.lb-counter {
  flex-basis: 100%;
  font-size: .85rem;
  color: var(--text-faint);
}

.lb-close,
.lb-nav {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px; 
  height: 48px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: var(--shadow-soft);
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.lb-close:hover, 
.lb-nav:hover { 
  background: var(--surface-2); 
  border-color: var(--border-warm); 
  transform: scale(1.06); 
}

.lb-close:focus-visible, 
.lb-nav:focus-visible { 
  outline: 2px solid var(--accent); 
  outline-offset: 3px; 
}

.lb-close { top: 1.2rem; right: 1.2rem; }
.lb-prev  { left: 1.2rem; top: 50%; transform: translateY(-50%); }
.lb-next  { right: 1.2rem; top: 50%; transform: translateY(-50%); }
.lb-prev:hover { transform: translateY(-50%) scale(1.06); }
.lb-next:hover { transform: translateY(-50%) scale(1.06); }

.lb-close svg, 
.lb-nav svg { 
  width: 20px; 
  height: 20px; 
}

/* ---------- 9. Responsive & Mobile Fixes ---------- */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 2.4rem; }
  .about-photo { max-width: 480px; margin-inline: auto; transform: none; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .nav-links {
    position: absolute;
    top: var(--nav-h); 
    left: 0; 
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(22, 22, 24, .97);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
  }

  .nav-links.open { max-height: 260px; }
  .nav-links a { display: block; padding: 1rem 6%; border-top: 1px solid var(--border); }

  .gallery-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
  .hero-content { padding: 4.5rem 0 5.5rem; }
  .lb-prev { left: .6rem; } 
  .lb-next { right: .6rem; }
  .lb-close { top: .8rem; right: .8rem; }

  /* Poprawka mobilna dla stopki - gwarancja pełnej widoczności */
  .footer {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    padding: 2rem 0;
  }

  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.2rem;
  }

  .footer-center {
    width: 100%;
    min-width: 0;
  }

  .footer-rodo {
    max-width: 100%;
    padding: 0 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { 
    animation: none !important; 
    transition: none !important; 
  }
  html { scroll-behavior: auto; }
}