/* Fonty przeniesione do plików HTML (<head>) */
:root {
  color-scheme: dark;
  --bg: #07090d;
  --bg-soft: #090d13;
  --surface-1: #0d1118;
  --surface-2: #131923;
  --surface-3: #192232;
  --line: #243040;
  --line-soft: #1a2330;
  --text: #e8edf2;
  --text-muted: #9aa7b6;
  --text-soft: #6e7b8c;
  --accent: #3ddc84;
  --accent-strong: #24b96a;
  --accent-soft: rgba(61, 220, 132, 0.13);
  --danger: #e06c75;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --container: 1120px;
  --nav-height: 64px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(180deg, rgba(61, 220, 132, 0.028), transparent 300px),
    var(--bg);
  color: var(--text);
  font-family: "General Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

button {
  border: 0;
}

::selection {
  background: var(--accent);
  color: #03110f;
}

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

.site-shell {
  min-height: 100vh;
  padding-top: var(--nav-height);
}

.container {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}

.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--nav-height);
  border-bottom: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(18px);
  view-transition-name: main-nav;
}

.site-nav .container {
  width: min(100% - 40px, var(--container)) !important;
  max-width: none !important;
}

.site-nav,
.site-nav * {
  font-family: "General Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif !important;
  -webkit-font-smoothing: antialiased !important;
  text-rendering: optimizeLegibility !important;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
  font-weight: 700;
}

.brand-mark {
  width: 28px;
  height: 28px;
  color: var(--accent);
  flex: 0 0 auto;
}

.brand-text {
  display: grid;
  line-height: 1;
}

.brand-name {
  color: var(--text);
  font-size: 0.96rem;
}

.brand-sub {
  color: var(--text-soft);
  font-family: "Satoshi", "General Sans", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-top: 4px;
  text-transform: uppercase;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: var(--surface-1);
}

.nav-link {
  min-height: 36px;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  background: var(--surface-2);
  color: var(--text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.segmented {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  background: var(--surface-1);
}

.segmented button,
.icon-button {
  display: inline-grid;
  place-items: center;
  min-width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  background: transparent;
  cursor: pointer;
}

.segmented button {
  padding: 0 10px;
  font-size: 0.78rem;
  font-weight: 800;
}

.segmented button.is-active,
.icon-button:hover,
.menu-toggle[aria-expanded="true"] {
  background: var(--surface-2);
  color: var(--text);
}

.icon-button svg,
.menu-toggle svg {
  width: 18px;
  height: 18px;
}

.menu-toggle {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  color: var(--text);
  background: var(--surface-1);
  cursor: pointer;
}

.mobile-panel {
  display: none;
  position: fixed;
  top: calc(var(--nav-height) + 12px);
  right: 20px;
  width: 220px;
  z-index: 45;
  padding: 8px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: var(--surface-1);
  box-shadow: var(--shadow);
}

.mobile-panel .container {
  width: 100% !important;
  padding: 0 !important;
  margin: 0 !important;
}

.mobile-panel.is-open {
  display: block;
}

.mobile-panel .nav-link {
  display: block;
  width: 100%;
  min-height: 46px;
  padding: 11px 12px;
}

.hero {
  position: relative;
  padding: clamp(44px, 7vw, 88px) 0 clamp(38px, 6vw, 72px);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  gap: 32px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
}

.hero h1,
.page-title,
.section-title,
.project-card h2 {
  margin: 0;
  font-family: "Satoshi", "General Sans", sans-serif;
  letter-spacing: 0;
  line-height: 0.98;
}

.hero h1 {
  max-width: 820px;
  margin-top: 16px;
  font-size: clamp(2.45rem, 6.4vw, 5.45rem);
  font-weight: 900;
}

.hero-copy {
  max-width: 660px;
  margin: 20px 0 0;
  color: var(--text-muted);
  font-size: clamp(1rem, 1.6vw, 1.13rem);
}

.hero-actions,
.card-actions,
.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--text);
  background: var(--surface-1);
  font-size: 0.92rem;
  font-weight: 800;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.button-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #03110f;
}

.button-primary:hover {
  background: var(--accent-strong);
  color: #fff;
}

.button svg {
  width: 17px;
  height: 17px;
}

.hero-mark {
  width: min(52vw, 190px);
  justify-self: start;
  color: var(--accent);
  opacity: 0.92;
}

.hero-mark .mark-line {
  stroke: var(--line);
}

.section {
  padding: clamp(46px, 8vw, 92px) 0;
  border-top: 1px solid var(--line-soft);
}

.about-grid {
  display: grid;
  gap: 34px;
}

.section-title,
.page-title {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 900;
}

.section-copy,
.prose {
  color: var(--text-muted);
  font-size: 1.02rem;
}

.section-copy {
  max-width: 680px;
  margin: 18px 0 0;
}

.prose {
  display: grid;
  gap: 18px;
}

.prose p {
  margin: 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 31px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-muted);
  background: var(--surface-1);
  font-size: 0.82rem;
  font-weight: 700;
}

.tag.is-accent {
  border-color: color-mix(in srgb, var(--accent) 48%, var(--line));
  color: var(--accent);
  background: var(--accent-soft);
}

.side-panel {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--surface-2), var(--surface-1));
  box-shadow: var(--shadow);
}

.stats-panel {
  display: grid;
  gap: 1px;
  overflow: hidden;
  background: var(--line-soft);
}

.stat {
  padding: 20px;
  background: var(--surface-1);
}

.stat-value {
  display: block;
  color: var(--text);
  font-family: "Satoshi", "General Sans", sans-serif;
  font-size: 1.7rem;
  font-weight: 900;
  line-height: 1;
}

.stat-label {
  display: block;
  margin-top: 8px;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.note {
  max-width: 850px;
  color: var(--text-muted);
  font-size: clamp(1.12rem, 2.4vw, 1.55rem);
  line-height: 1.45;
}

.page-header {
  padding: clamp(58px, 9vw, 104px) 0 34px;
  border-bottom: 1px solid var(--line-soft);
}

.page-kicker {
  margin: 0 0 16px;
}

.page-lede {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.projects-list {
  display: grid;
  gap: 18px;
  padding: 42px 0 86px;
}

.project-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  gap: 22px;
  padding: clamp(22px, 4vw, 30px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  background: var(--surface-1);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.02) inset;
}

.project-card:hover {
  border-color: color-mix(in srgb, var(--accent) 48%, var(--line));
  background: color-mix(in srgb, var(--surface-1) 88%, var(--accent-soft));
}

.project-card h2 {
  font-size: clamp(1.72rem, 3.15vw, 2.62rem);
  font-weight: 900;
  line-height: 0.98;
  overflow-wrap: normal;
  word-break: normal;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.project-desc {
  max-width: 720px;
  margin: 0;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.feature-lines {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.feature-lines li {
  display: flex;
  gap: 10px;
}

.feature-lines li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 0.72em;
  border-radius: 50%;
  background: var(--accent);
  flex: 0 0 auto;
}

.expansions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.label {
  margin: 0 0 10px;
  color: var(--text-soft);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 32px 0;
  color: var(--text-soft);
  font-size: 0.88rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
  justify-content: space-between;
}

.footer-links {
  display: flex;
  gap: 14px;
}

.hide-scrollbar::-webkit-scrollbar {
  display: none;
}

.hide-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Szachownica pod screenami (placeholder do momentu załadowania obrazka) */
.checker-bg {
  background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI4IiBoZWlnaHQ9IjgiPgo8cmVjdCB3aWR0aD0iOCIgaGVpZ2h0PSI4IiBmaWxsPSIjMWUyOTNiIiBmaWxsLW9wYWNpdHk9IjAuNSI+PC9yZWN0Pgo8cGF0aCBkPSJNMCAwTDggOFpNMCA4TDggMFoiIHN0cm9rZT0iIzBmMTcyYSIgc3Ryb2tlLXdpZHRoPSIxIj48L3BhdGg+Cjwvc3ZnPg==");
}

/* Wskaźnik pozycji slidera (np. "2 / 4") */
.slider-indicator {
  margin-top: 6px;
  text-align: center;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  opacity: 0;
  transition: opacity 180ms ease;
}

.lightbox.is-open {
  display: flex;
  opacity: 1;
}

.lightbox img {
  max-width: 95vw;
  max-height: 90vh;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-1);
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
}

.project-detail {
  background: var(--bg) !important;
  color: var(--text) !important;
  padding-top: var(--nav-height);
}

.project-detail header:not(.site-nav),
.project-detail main,
.project-detail section {
  background: transparent !important;
}

.project-detail>header:not(.site-nav) {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.project-detail>header:not(.site-nav)>div,
.project-detail>main {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}

.project-detail>header:not(.site-nav)>div {
  display: flex;
  align-items: center;
  gap: 32px;
}

.project-detail main {
  padding-top: 64px;
  padding-bottom: 64px;
}

.project-detail section+section {
  margin-top: 80px;
}

.project-detail #slider-mqol,
.project-detail #slider-dtt {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
}

.project-detail #slider-mqol>div,
.project-detail #slider-dtt>div {
  width: min(85vw, 360px);
  aspect-ratio: 16 / 9;
  flex: 0 0 min(85vw, 360px);
  overflow: hidden;
}

@media (min-width: 640px) {

  .project-detail #slider-mqol>div,
  .project-detail #slider-dtt>div {
    width: min(100%, 360px);
    flex: 0 0 min(100%, 360px);
  }
}

.project-detail .screenshot-src {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover;
}

.project-detail .bg-card,
.project-detail .bg-slate-800,
.project-detail .bg-slate-900 {
  background-color: var(--surface-1) !important;
}

.project-detail .project-mark {
  width: 128px !important;
  height: 128px !important;
  max-width: 128px !important;
  flex: 0 0 128px !important;
}

.project-detail .border-slate-700,
.project-detail .border-slate-800 {
  border-color: var(--line) !important;
}

.project-detail h1,
.project-detail h2,
.project-detail h3,
.project-detail .text-white {
  color: var(--text) !important;
}

.project-detail p,
.project-detail li,
.project-detail .text-slate-300,
.project-detail .text-slate-400,
.project-detail .text-slate-500 {
  color: var(--text-muted) !important;
}

.project-detail .text-green-300,
.project-detail .text-green-400 {
  color: var(--accent) !important;
}

.project-detail .bg-green-600 {
  background-color: var(--accent-strong) !important;
  color: #fff !important;
}

.project-detail .bg-amber-600 {
  background-color: #b7791f !important;
  color: #fff !important;
}

.project-detail a.bg-slate-800 {
  background-color: var(--surface-2) !important;
  color: var(--text) !important;
}

@media (max-width: 760px) {
  .project-detail>header:not(.site-nav)>div {
    flex-direction: column;
    align-items: center;
  }
}

@media (min-width: 760px) {
  .nav-links {
    display: flex;
  }

  .menu-toggle,
  .mobile-panel {
    display: none !important;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) 210px;
  }

  .hero-mark {
    justify-self: end;
  }

  .about-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
    align-items: start;
  }

  .stats-panel {
    grid-template-columns: 1fr;
  }

  .projects-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }

  .project-card {
    justify-content: space-between;
  }

  .footer-inner {
    flex-direction: row;
    align-items: center;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .brand-sub {
    display: none;
  }

  .hero-actions,
  .card-actions,
  .project-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }
}

/* Custom Interactive Background & Modern Visual Effects */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: -1;
  view-transition-name: bg-canvas;
}

.hero-grid {
  position: relative;
  z-index: 2;
}

.hero-mark {
  position: relative;
  z-index: 2;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), filter 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-mark:hover {
  transform: scale(1.05) rotate(2deg);
  filter: drop-shadow(0 0 20px rgba(61, 220, 132, 0.4));
}

/* Glassmorphism & Modern Cards */
.glass-card {
  background: color-mix(in srgb, var(--surface-1) 75%, transparent) !important;
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  border: 1px solid var(--line-soft) !important;
  box-shadow: var(--shadow);
}

.project-card {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent) !important;
  box-shadow: 0 20px 40px rgba(61, 220, 132, 0.08);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.animate-fade-in-delayed {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: 0.15s;
}

.animate-fade-in-delayed-2 {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: 0.3s;
}

/* Core Engineering Pillars layout */
.pillars-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  margin-top: 32px;
}

.pillar-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--surface-1);
  border: 1px solid var(--line-soft);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.pillar-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 12px 30px rgba(61, 220, 132, 0.04);
}

.pillar-card h3 {
  margin: 0 0 12px;
  font-family: "Satoshi", sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
}

.pillar-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.6;
}

.pillar-card .pillar-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 700;
}

.pillar-card .pillar-link svg {
  width: 15px;
  height: 15px;
  transition: transform 160ms ease;
}

.pillar-card .pillar-link:hover svg {
  transform: translateX(3px);
}

/* Unified detail page style adjustments */
.project-detail .bg-card {
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.project-detail .bg-card:hover {
  border-color: var(--accent) !important;
  box-shadow: 0 12px 30px rgba(61, 220, 132, 0.04);
}

html::view-transition {
  overflow: clip;
}

@view-transition {
  navigation: auto;
}

::view-transition-old(root) {
  animation: 350ms cubic-bezier(0.4, 0, 0.2, 1) both slide-out;
  mix-blend-mode: normal;
}

::view-transition-new(root) {
  animation: 350ms cubic-bezier(0.4, 0, 0.2, 1) both slide-in;
  mix-blend-mode: normal;
}

/* Wykluczenie animacji paska górnego (navbar), aby stał nieruchomo bez migania */
::view-transition-group(main-nav) {
  animation: none !important;
}

::view-transition-old(main-nav) {
  display: none !important;
}

::view-transition-new(main-nav) {
  animation: none !important;
  opacity: 1 !important;
}

@keyframes slide-out {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-100%);
  }
}

@keyframes slide-in {
  from {
    transform: translateX(100%);
  }

  to {
    transform: translateX(0);
  }
}

@media (max-width: 760px) {
  .hero-mark {
    display: none !important;
  }
}

/* Ograniczony ruch: bez animacji wejścia, przejść między stronami i płynnego scrolla */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .animate-fade-in,
  .animate-fade-in-delayed,
  .animate-fade-in-delayed-2 {
    animation: none;
  }

  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation: none !important;
  }

  .project-card,
  .pillar-card,
  .hero-mark,
  .button {
    transition: none;
  }
}