/* ══════════════════════════════════════
   BASE
══════════════════════════════════════ */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; font-size:16px; }

:root {
  --ink:     #0f0f0f;
  --ink2:    #1c1c1c;
  --ink3:    #2e2e2e;
  --mid:     #6b6b6b;
  --rule:    #e2e2e2;
  --bg:      #f5f3ef;
  --bg2:     #ede9e3;
  --white:   #fafaf8;
  --acc:     #c8412b;   /* brick red — warm, strong, not purple */
  --acc2:    #e8956d;   /* terra cotta */
  --serif:   'DM Serif Display', Georgia, serif;
  --sans:    'DM Sans', system-ui, sans-serif;
}

body {
  font-family: var(--sans);
  background: var(--white);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

/* ══════════════════════════════════════
   TOPBAR
══════════════════════════════════════ */
.topbar {
  position: fixed; top:0; left:0; right:0; z-index:50;
  height:56px;
  background: var(--white);
  border-bottom: 1px solid var(--rule);
  display: flex; align-items:center;
  padding: 0 2.5rem;
  gap: 3rem;
}

.topbar-logo {
  font-family: var(--sans);
  font-size: 1rem; font-weight:500;
  color: var(--ink); text-decoration:none;
  letter-spacing:-0.5px;
  display:flex; align-items:center; gap:6px;
  flex-shrink:0;
}
.topbar-logo b { color: var(--acc); font-weight:500; }

.topbar-nav {
  display:flex; gap:0; list-style:none; flex:1;
}
.topbar-nav a {
  font-size:0.8125rem; color:var(--mid);
  text-decoration:none; padding:0 1rem;
  letter-spacing:0.01em;
  transition: color 0.2s;
  line-height:56px;
  display:block;
  border-bottom: 2px solid transparent;
}
.topbar-nav a:hover { color:var(--ink); }
.topbar-nav a.on { color:var(--ink); border-bottom-color: var(--acc); }

.topbar-right {
  margin-left:auto;
  font-size:0.75rem; color:var(--mid);
  letter-spacing:0.05em;
}

/* ══════════════════════════════════════
   PAGE HEADER
══════════════════════════════════════ */
.page-header {
  margin-top:56px;
  padding: 80px 2.5rem 60px;
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items:end;
}

.ph-left {}

.ph-kicker {
  font-size:0.75rem; font-weight:500;
  letter-spacing:0.12em; text-transform:uppercase;
  color: var(--acc); margin-bottom:1.25rem;
  display:flex; align-items:center; gap:0.75rem;
}
.ph-kicker::before {
  content:''; display:block;
  width:24px; height:1px; background:var(--acc);
}

.ph-title {
  font-family: var(--serif);
  font-size: clamp(3rem,6vw,5.5rem);
  line-height:0.95;
  letter-spacing:-2px;
  color:var(--ink);
}
.ph-title em {
  font-style:italic;
  color:var(--acc);
}

.ph-right {
  padding-bottom:8px;
}
.ph-desc {
  font-size:1.0625rem; line-height:1.75;
  color:var(--mid); font-weight:300;
  max-width:420px;
  margin-bottom:2rem;
}
.ph-stats {
  display:flex; gap:2.5rem;
}
.ph-stat-num {
  font-family: var(--serif);
  font-size:2.25rem; color:var(--ink);
  line-height:1; display:block;
  letter-spacing:-1px;
}
.ph-stat-label {
  font-size:0.75rem; color:var(--mid);
  letter-spacing:0.05em; margin-top:2px;
}

/* ══════════════════════════════════════
   TOOLBAR (filters + count)
══════════════════════════════════════ */
.toolbar {
  display:flex; align-items:center;
  padding: 0 2.5rem;
  height:48px;
  border-bottom:1px solid var(--rule);
  background:var(--white);
  position:sticky; top:56px; z-index:40;
  gap:0;
}

.filter-group {
  display:flex; gap:0;
}
.filter-btn {
  font-family:var(--sans);
  font-size:0.775rem; font-weight:400;
  color:var(--mid);
  background:none; border:none;
  padding:0 1.125rem; height:48px;
  cursor:pointer; letter-spacing:0.01em;
  position:relative;
  transition:color 0.2s;
  border-right:1px solid var(--rule);
  white-space:nowrap;
}
.filter-btn:first-child { border-left:1px solid var(--rule); }
.filter-btn::after {
  content:''; position:absolute; bottom:0; left:0; right:0;
  height:2px; background:var(--acc);
  transform:scaleX(0); transition:transform 0.25s;
}
.filter-btn:hover { color:var(--ink); }
.filter-btn.on { color:var(--ink); font-weight:500; }
.filter-btn.on::after { transform:scaleX(1); }

.toolbar-count {
  margin-left:auto;
  font-size:0.75rem; color:var(--mid);
  letter-spacing:0.05em;
}

/* ══════════════════════════════════════
   PROJECTS GRID
══════════════════════════════════════ */
.grid-wrap {
  padding: 0;
}

.projects-grid {
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  border-left:1px solid var(--rule);
}

/* ══════════════════════════════════════
   PROJECT CARD — LIVE
══════════════════════════════════════ */
.card {
  display:flex; flex-direction:column;
  border-right:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
  min-height:360px;
  background:var(--white);
  text-decoration:none; color:inherit;
  position:relative; overflow:hidden;
  transition:background 0.25s;
}
.card:hover { background:var(--bg); }

/* accent top bar */
.card-bar {
  height:3px;
  background:var(--rule);
  transition:background 0.3s;
  flex-shrink:0;
}
.card:hover .card-bar { background:var(--acc); }

.card-inner {
  padding:1.75rem 1.875rem;
  display:flex; flex-direction:column;
  flex:1;
}

.card-top {
  display:flex; align-items:flex-start;
  justify-content:space-between; gap:1rem;
  margin-bottom:1.5rem;
}

.card-icon {
  width:48px; height:48px;
  background:var(--bg2);
  display:flex; align-items:center; justify-content:center;
  font-size:1.375rem;
  flex-shrink:0;
  transition:background 0.25s;
}
.card:hover .card-icon { background:var(--acc2); }

.card-tag {
  font-size:0.6875rem; font-weight:500;
  letter-spacing:0.08em; text-transform:uppercase;
  color:var(--mid); padding:4px 10px;
  border:1px solid var(--rule);
  line-height:1;
  background:var(--white);
}

.card-title {
  font-family:var(--serif);
  font-size:1.3125rem;
  line-height:1.25; letter-spacing:-0.3px;
  margin-bottom:0.375rem;
  color:var(--ink);
}

.card-author {
  font-size:0.8rem; color:var(--mid);
  font-weight:400; margin-bottom:0.875rem;
  letter-spacing:0.01em;
}

.card-desc {
  font-size:0.875rem; line-height:1.7;
  color:var(--mid); font-weight:300;
  flex:1;
}

.card-foot {
  margin-top:1.5rem;
  padding-top:1rem;
  border-top:1px solid var(--rule);
  display:flex; align-items:center; justify-content:space-between;
  gap:1rem;
}

.card-techs {
  display:flex; gap:4px; flex-wrap:wrap;
}
.tech {
  font-size:0.6875rem; color:var(--mid);
  padding:2px 8px; letter-spacing:0.04em;
  background:var(--bg2); font-weight:400;
}

.card-arrow {
  display:flex; align-items:center; gap:6px;
  font-size:0.75rem; font-weight:500;
  color:var(--acc); letter-spacing:0.03em;
  transition:gap 0.25s;
  flex-shrink:0;
}
.card:hover .card-arrow { gap:10px; }
.card-arrow svg {
  width:14px; height:14px;
  fill:none; stroke:var(--acc); stroke-width:1.5;
  transition:transform 0.25s;
}
.card:hover .card-arrow svg { transform:translateX(3px); }

/* ══════════════════════════════════════
   CARD — EMPTY (placeholder)
══════════════════════════════════════ */
.card-empty {
  border-right:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
  min-height:360px;
  background:var(--bg);
  display:flex; flex-direction:column;
  position:relative; overflow:hidden;
}

/* diagonal hatch pattern */
.card-empty::before {
  content:'';
  position:absolute; inset:0;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 8px,
    rgba(0,0,0,0.03) 8px,
    rgba(0,0,0,0.03) 9px
  );
}

.card-empty-bar {
  height:3px; background:var(--rule); flex-shrink:0;
}

.card-empty-inner {
  position:relative; z-index:1;
  padding:1.75rem 1.875rem;
  display:flex; flex-direction:column;
  flex:1; justify-content:space-between;
}

.card-empty-num {
  font-family:var(--serif);
  font-size:3.5rem; font-weight:400;
  color:rgba(0,0,0,0.07);
  line-height:1; letter-spacing:-2px;
  user-select:none;
}

.card-empty-label {
  font-size:0.75rem; font-weight:500;
  letter-spacing:0.1em; text-transform:uppercase;
  color: rgba(0,0,0,0.22);
  display:flex; align-items:center; gap:0.75rem;
}
.card-empty-label::before {
  content:''; display:block;
  width:20px; height:1px;
  background:rgba(0,0,0,0.18);
}

/* ══════════════════════════════════════
   WIDE CARD (2-column span)
══════════════════════════════════════ */
.card-wide {
  grid-column: span 2;
}
.card-wide .card-inner { flex-direction:row; gap:2.5rem; align-items:flex-start; }
.card-wide .card-main { flex:1; display:flex; flex-direction:column; }
.card-wide .card-desc { flex:1; }
.card-wide .card-visual {
  width:220px; flex-shrink:0;
  aspect-ratio:1;
  background:var(--bg2);
  display:flex; align-items:center; justify-content:center;
  font-size:4rem;
  transition:background 0.25s;
}
.card-wide:hover .card-visual { background:var(--acc2); }

/* ══════════════════════════════════════
   AUTHOR SECTION
══════════════════════════════════════ */
.author-section {
  border-top:1px solid var(--rule);
  background:var(--bg);
  padding:64px 2.5rem;
  display:grid;
  grid-template-columns:280px 1fr;
  gap:5rem;
  align-items:start;
}

.author-left {
  position:sticky; top:120px;
}

.author-label {
  font-size:0.75rem; font-weight:500;
  letter-spacing:0.12em; text-transform:uppercase;
  color:var(--acc); margin-bottom:1.5rem;
}

.author-portrait {
  width:100%; aspect-ratio:3/4;
  background:var(--bg2);
  display:flex; align-items:center; justify-content:center;
  font-size:5rem;
  position:relative; overflow:hidden;
  margin-bottom:1.5rem;
}
.author-portrait::after {
  content:''; position:absolute;
  bottom:0; left:0; right:0; height:3px;
  background:var(--acc);
}

.author-stat-grid {
  display:grid; grid-template-columns:1fr 1fr; gap:1px;
  background:var(--rule);
}
.author-stat {
  background:var(--white); padding:1rem;
}
.author-stat-n {
  font-family:var(--serif); font-size:1.75rem;
  color:var(--ink); letter-spacing:-1px; display:block;
}
.author-stat-l {
  font-size:0.7rem; color:var(--mid);
  letter-spacing:0.05em; margin-top:2px;
}

.author-right {}

.author-name {
  font-family:var(--serif);
  font-size:clamp(2.5rem,4vw,3.75rem);
  line-height:0.95; letter-spacing:-2px;
  margin-bottom:0.75rem;
}
.author-name em { font-style:italic; color:var(--acc); }

.author-role {
  font-size:0.875rem; color:var(--mid);
  margin-bottom:2.5rem; letter-spacing:0.01em;
  display:flex; align-items:center; gap:0.75rem;
}
.author-role::before {
  content:''; width:24px; height:1px; background:var(--mid); flex-shrink:0;
}

.author-bio {
  font-size:1rem; line-height:1.8;
  color:var(--ink3); font-weight:300;
  max-width:560px; margin-bottom:3rem;
}
.author-bio p+p { margin-top:1em; }

.author-links {
  display:flex; gap:1px;
  background:var(--rule);
  width:fit-content;
}
.author-link {
  font-size:0.8125rem; font-weight:500;
  letter-spacing:0.03em;
  padding:10px 20px;
  background:var(--white);
  color:var(--ink); text-decoration:none;
  display:flex; align-items:center; gap:6px;
  transition:background 0.2s, color 0.2s;
}
.author-link:hover { background:var(--acc); color:var(--white); }

/* ══════════════════════════════════════
   FOOTER
══════════════════════════════════════ */
footer {
  border-top:1px solid var(--rule);
  padding: 1.5rem 2.5rem;
  display:flex; align-items:center; gap:3rem;
  flex-wrap:wrap;
}
.footer-logo {
  font-family:var(--sans); font-size:0.9rem; font-weight:500;
  color:var(--ink); text-decoration:none;
}
.footer-logo b { color:var(--acc); font-weight:500; }
.footer-nav {
  display:flex; gap:2rem; list-style:none;
}
.footer-nav a {
  font-size:0.8rem; color:var(--mid);
  text-decoration:none; transition:color 0.2s;
}
.footer-nav a:hover { color:var(--ink); }
.footer-copy {
  margin-left:auto; font-size:0.75rem; color:var(--mid);
}

/* ══════════════════════════════════════
   HIDDEN state for filter
══════════════════════════════════════ */
.card[data-hidden], .card-empty[data-hidden] {
  opacity:0.2;
  pointer-events:none;
}

/* ══════════════════════════════════════
   SCROLL REVEAL
══════════════════════════════════════ */
.sr {
  opacity:0; transform:translateY(20px);
  transition:opacity 0.55s ease, transform 0.55s ease;
}
.sr.visible { opacity:1; transform:none; }
.sr-d1 { transition-delay:0.07s; }
.sr-d2 { transition-delay:0.14s; }
.sr-d3 { transition-delay:0.21s; }


/* ══════════════════════════════════════
   ZDJĘCIA: baner, miniatury kart, portret
   (wszystkie obrazki w /projekty/img/, brak pliku = zostaje wersja z emoji)
══════════════════════════════════════ */
.page-header{
  position:relative; overflow:hidden; isolation:isolate;
  background:var(--ink2) url("img/baner.jpg") center 40%/cover no-repeat;
  border-bottom:none; min-height:420px;
}
.page-header::before{
  content:''; position:absolute; inset:0; z-index:-1;
  background:linear-gradient(100deg,rgba(15,12,10,.88) 0%,rgba(15,12,10,.62) 55%,rgba(15,12,10,.35) 100%);
}
.page-header::after{
  content:''; position:absolute; left:0; right:0; bottom:0; height:3px; background:var(--acc);
}
.ph-kicker{color:var(--acc2)}
.ph-kicker::before{background:var(--acc2)}
.ph-title{color:#fafaf8}
.ph-title em{color:var(--acc2)}
.ph-desc{color:rgba(250,250,248,.78)}
.ph-stat-num{color:#fafaf8}
.ph-stat-label{color:rgba(250,250,248,.6)}

.card-thumb{
  position:relative; height:168px; overflow:hidden; flex-shrink:0;
  background:var(--bg2); border-bottom:1px solid var(--rule);
}
.card-thumb img{
  width:100%; height:100%; object-fit:cover; object-position:top center; display:block;
  filter:saturate(.88) contrast(.98);
  transition:transform .6s ease, filter .3s;
}
.card:hover .card-thumb img{transform:scale(1.05); filter:none}

.card-visual{position:relative; overflow:hidden}
.card-visual img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover; object-position:top center;
  filter:saturate(.88); transition:transform .6s ease;
}
.card-wide:hover .card-visual img{transform:scale(1.05)}

.author-portrait img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover; object-position:center top}

@media(max-width:600px){
  .page-header{min-height:0}
  .card-thumb{height:140px}
}

/* ══════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════ */
@media(max-width:1100px){
  .projects-grid { grid-template-columns:repeat(2,1fr); }
  .card-wide { grid-column:span 1; }
  .card-wide .card-inner { flex-direction:column; }
  .card-wide .card-visual { width:100%; aspect-ratio:3/1; }
}
@media(max-width:860px){
  .page-header { grid-template-columns:1fr; gap:2rem; }
  .author-section { grid-template-columns:1fr; gap:3rem; }
  .author-left { position:static; }
  .topbar-nav { display:none; }
}
@media(max-width:600px){
  .projects-grid { grid-template-columns:1fr; }
  .card-wide { grid-column:span 1; }
  .page-header { padding:48px 1.25rem 40px; }
  .toolbar { padding:0 1.25rem; overflow-x:auto; }
  .author-section { padding:48px 1.25rem; }
  footer { padding:1.25rem; }
}