/* ==========================================================================
   Softio - design system tokens + site styles
   Świat: ciemny grafit z jednym pomarańczowym światłem (z inspiration.jpg),
   typografia Poppins (display) + Geist (tekst), skala 8pt.
   ========================================================================== */

:root {
  /* Kolory - z inspiration.jpg */
  --bg-0: #0b0d10;
  --bg-1: #111418;
  --bg-2: #161a1f;
  --bg-3: #1c2127;
  --line: #242a31;
  --line-strong: #2f3740;
  --text: #f2f4f7;
  --text-2: #c3c9d1;
  --muted: #9aa3ae;
  --accent: #f5a524;
  --accent-2: #f28c1a;
  --accent-ink: #1a1206;
  --accent-glow: rgba(245, 165, 36, 0.22);
  --accent-soft: rgba(245, 165, 36, 0.1);

  /* Typografia */
  --font-display: "Poppins", "Segoe UI", system-ui, sans-serif;
  --font-body: "Geist", "Segoe UI", system-ui, sans-serif;
  --fs-display: clamp(2.5rem, 1.4rem + 3.4vw, 4.25rem);
  --fs-h2: clamp(2rem, 1.4rem + 2.2vw, 3.25rem);
  --fs-h3: 1.25rem;
  --fs-lead: clamp(1.0625rem, 1rem + 0.35vw, 1.25rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-label: 0.75rem;

  /* Spacing - skala 8pt */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --s-10: 7.5rem;
  --section-y: clamp(4.5rem, 3rem + 5vw, 7.5rem);
  --container: 75rem;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);

  /* Kształt i głębia */
  --r-sm: 0.5rem;
  --r-md: 0.875rem;
  --r-lg: 1.25rem;
  --r-pill: 999px;
  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px -12px rgba(0, 0, 0, 0.6);
  --shadow-2: 0 2px 4px rgba(0, 0, 0, 0.45), 0 24px 48px -20px rgba(0, 0, 0, 0.7);
  --shadow-accent: 0 6px 24px -8px rgba(242, 140, 26, 0.55);

  /* Ruch */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 160ms;
  --dur-base: 280ms;
  --dur-slow: 640ms;

  color-scheme: dark;
}

/* --------------------------------------------------------------------------
   Reset i powierzchnie przeglądarki
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg-0);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

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

html {
  scrollbar-color: var(--line-strong) var(--bg-0);
  scrollbar-width: thin;
}

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-0);
}
::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border-radius: var(--r-pill);
  border: 2px solid var(--bg-0);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

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

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

p {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--s-4);
  z-index: 100;
  padding: var(--s-2) var(--s-4);
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: var(--r-sm);
  font-weight: 600;
}
.skip-link:focus {
  top: var(--s-4);
}

/* --------------------------------------------------------------------------
   Układ
   -------------------------------------------------------------------------- */
.container {
  width: min(var(--container), 100% - 2 * var(--gutter));
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: var(--section-y);
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section--tint {
  background: var(--bg-1);
}

.section-head {
  display: grid;
  gap: var(--s-4);
  max-width: 44rem;
  margin-bottom: var(--s-8);
}

.section-head h2 {
  font-size: var(--fs-h2);
}

.section-head p {
  color: var(--muted);
  font-size: var(--fs-lead);
  max-width: 60ch;
}

.section-head--split {
  max-width: none;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
}

.section-head--split > div {
  display: grid;
  gap: var(--s-4);
  max-width: 44rem;
}

@media (max-width: 47.9rem) {
  .section-head--split {
    grid-template-columns: 1fr;
  }
}

.lead {
  font-size: var(--fs-lead);
  color: var(--text-2);
  max-width: 60ch;
}

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

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

/* --------------------------------------------------------------------------
   Przyciski
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  min-height: 2.75rem;
  padding: 0 1.375rem;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition:
    transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out),
    background-color var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    color var(--dur-base) var(--ease-out);
}

.btn:active {
  transform: scale(0.97);
}

.btn svg {
  width: 1rem;
  height: 1rem;
  flex: none;
  transition: transform var(--dur-base) var(--ease-out);
}

.btn--primary {
  background: linear-gradient(135deg in oklch, var(--accent), var(--accent-2));
  color: var(--accent-ink);
  box-shadow: var(--shadow-accent);
  padding-inline-end: 1.125rem;
}

.btn--primary:hover {
  box-shadow: 0 10px 32px -8px rgba(242, 140, 26, 0.7);
  transform: translateY(-1px);
}

.btn--primary:hover svg {
  transform: translateX(3px);
}

.btn--ghost {
  border: 1px solid var(--line-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
}

.btn--ghost:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.btn--outline {
  border: 1px solid var(--accent);
  color: var(--accent);
}

.btn--outline:hover {
  background: var(--accent-soft);
}

/* --------------------------------------------------------------------------
   Nawigacja
   -------------------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  padding-block: var(--s-4);
  background: color-mix(in srgb, var(--bg-0) 72%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition:
    padding var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out);
}

.nav.is-scrolled {
  padding-block: var(--s-2);
  border-bottom-color: var(--line);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--s-6);
}

.nav__brand img {
  height: 2rem;
  width: auto;
}

.nav__links {
  display: flex;
  gap: var(--s-1);
  margin-inline: auto;
}

.nav__links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 2.5rem;
  padding: 0 var(--s-3);
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--dur-fast) var(--ease-out);
}

.nav__links a::after {
  content: "";
  position: absolute;
  left: var(--s-3);
  right: var(--s-3);
  bottom: 0.35rem;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out);
}

.nav__links a:hover,
.nav__links a.is-active {
  color: var(--text);
}

.nav__links a.is-active::after {
  transform: scaleX(1);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--s-3);
}

.lang {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.lang a {
  padding: var(--s-1) var(--s-2);
  border-radius: var(--r-sm);
  transition:
    color var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out);
}

.lang a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.lang a[aria-current="page"] {
  color: var(--accent);
}

.nav__toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--r-sm);
  align-items: center;
  justify-content: center;
}

.nav__toggle svg {
  width: 1.5rem;
  height: 1.5rem;
}

.nav__toggle .x {
  display: none;
}

@media (max-width: 63.9rem) {
  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: var(--s-3) var(--gutter) var(--s-5);
    background: var(--bg-1);
    border-bottom: 1px solid var(--line);
    opacity: 0;
    transform: translateY(-8px);
    filter: blur(4px);
    pointer-events: none;
    transition:
      opacity var(--dur-base) var(--ease-out),
      transform var(--dur-base) var(--ease-out),
      filter var(--dur-base) var(--ease-out);
  }

  .nav__links.is-open {
    opacity: 1;
    transform: none;
    filter: none;
    pointer-events: auto;
  }

  .nav__links a {
    min-height: 3rem;
  }

  .nav__links a::after {
    display: none;
  }

  .nav__toggle {
    display: inline-flex;
  }

  .nav__toggle[aria-expanded="true"] .burger {
    display: none;
  }
  .nav__toggle[aria-expanded="true"] .x {
    display: block;
  }

  .nav__cta {
    display: none;
  }

  .nav__actions {
    margin-inline-start: auto;
  }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2rem, 1rem + 3vw, 4rem) var(--section-y);
  isolation: isolate;
}

.hero__glow {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60rem 40rem at 78% 40%, rgba(242, 140, 26, 0.13), transparent 60%),
    radial-gradient(40rem 30rem at 10% 100%, rgba(245, 165, 36, 0.06), transparent 60%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 4rem 4rem;
  mask-image: radial-gradient(70% 70% at 50% 40%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(70% 70% at 50% 40%, black 30%, transparent 100%);
  opacity: 0.35;
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 5rem);
  align-items: center;
}

.hero__copy {
  display: grid;
  gap: var(--s-4);
}

.hero h1 {
  font-size: var(--fs-display);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.02;
}

.hero h1 .accent {
  display: inline-block;
}

.hero__sub {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1rem + 1vw, 1.75rem);
  font-weight: 400;
  color: var(--text-2);
  letter-spacing: -0.01em;
}

.hero__sub .caret {
  display: inline-block;
  width: 2px;
  height: 1em;
  margin-left: 0.15em;
  vertical-align: -0.15em;
  background: var(--accent);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-2);
}

.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) var(--s-5);
  margin-top: var(--s-2);
  font-size: var(--fs-small);
  color: var(--muted);
}

.hero__facts li {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}

.hero__facts li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* Scena hero: obraz/wideo + pływające etykiety */
.hero__scene {
  position: relative;
  aspect-ratio: 4 / 5;
  max-height: 44rem;
  margin-inline: auto;
  width: 100%;
}

.hero__media {
  position: absolute;
  inset: -6%;
  overflow: hidden;
  mask-image: radial-gradient(72% 72% at 50% 50%, black 35%, transparent 74%);
  -webkit-mask-image: radial-gradient(72% 72% at 50% 50%, black 35%, transparent 74%);
}

.hero__media img,
.hero__media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Czerń renderu staje się przezroczysta - brzeg wideo nie odcina się od tła. */
  mix-blend-mode: lighten;
}

.hero__media video {
  opacity: 0;
  transition: opacity 900ms var(--ease-out);
}

.hero__media video.is-ready {
  opacity: 1;
}

.hero__orbit {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.hero__orbit circle {
  fill: none;
  stroke: var(--accent);
  stroke-opacity: 0.18;
  stroke-width: 1;
  stroke-dasharray: 2 6;
  transform-origin: 50% 50%;
  animation: orbit-spin 90s linear infinite;
}

.hero__orbit circle:nth-child(2) {
  stroke-opacity: 0.1;
  animation-duration: 140s;
  animation-direction: reverse;
}

@keyframes orbit-spin {
  to {
    transform: rotate(360deg);
  }
}

.chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-2) var(--s-3);
  background: color-mix(in srgb, var(--bg-2) 82%, transparent);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-size: var(--fs-small);
  font-weight: 500;
  white-space: nowrap;
  --float-delay: 0s;
  --float-dur: 7s;
  animation: chip-float var(--float-dur) var(--ease-in-out) var(--float-delay) infinite;
}

.chip svg {
  width: 1.125rem;
  height: 1.125rem;
  color: var(--accent);
}

.chip--1 {
  top: 8%;
  right: 6%;
  --float-delay: -1s;
}
.chip--2 {
  top: 38%;
  left: -2%;
  --float-delay: -3s;
  --float-dur: 8s;
}
.chip--3 {
  top: 34%;
  right: -3%;
  --float-delay: -5s;
  --float-dur: 9s;
}
.chip--4 {
  bottom: 9%;
  left: 8%;
  --float-delay: -2s;
  --float-dur: 7.5s;
}
.chip--5 {
  top: 14%;
  left: 2%;
  --float-delay: -6s;
  --float-dur: 8.5s;
}
.chip--6 {
  bottom: 16%;
  right: 4%;
  --float-delay: -4s;
  --float-dur: 9s;
}
.chip--7 {
  top: 62%;
  left: 0;
  --float-delay: -0.5s;
  --float-dur: 7.8s;
}

@keyframes chip-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.hero__stage {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

@media (max-width: 63.9rem) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .hero__scene {
    max-width: 26rem;
    max-height: none;
  }

  /* Bez parallaxu na wąskich ekranach - scena nie może wyjechać poza sekcję */
  .hero__scene,
  .hero__scene[data-reveal].is-in,
  .hero__stage,
  .hero__copy {
    transform: none;
  }

  .chip--2 {
    left: 0;
  }
  .chip--3 {
    display: none;
  }
  .chip--6 {
    display: none;
  }
  .chip--7 {
    left: 0;
  }
}

/* --------------------------------------------------------------------------
   O firmie + oś czasu
   -------------------------------------------------------------------------- */
.about {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2.5rem, 5vw, 6rem);
  align-items: start;
}

.about__text {
  display: grid;
  gap: var(--s-5);
}

.about__text h2 {
  font-size: var(--fs-h2);
}

.about__text p {
  color: var(--text-2);
  max-width: 62ch;
}

.about__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s-3);
  margin-top: var(--s-2);
}

.fact {
  padding: var(--s-4) var(--s-5);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--bg-2);
}

.fact__label {
  display: block;
  font-size: var(--fs-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--s-1);
}

.fact__value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text);
}

.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline__rail {
  position: absolute;
  left: 0.5rem;
  top: 0.25rem;
  bottom: 0.25rem;
  width: 2px;
  background: var(--line);
  border-radius: 2px;
  overflow: hidden;
}

.timeline__rail::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(var(--accent), var(--accent-2));
  transform: scaleY(var(--progress, 0));
  transform-origin: top;
  transition: transform 200ms linear;
}

.timeline__item {
  position: relative;
  display: grid;
  gap: var(--s-1);
  padding-bottom: var(--s-6);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -2rem;
  top: 0.45rem;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  background: var(--bg-0);
  border: 2px solid var(--line-strong);
  transform: scale(0.8);
  transition:
    border-color var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out),
    box-shadow var(--dur-slow) var(--ease-out);
}

.is-in .timeline__item::before {
  border-color: var(--accent);
  transform: scale(1);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.timeline__year {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--accent);
  letter-spacing: -0.01em;
}

.timeline__title {
  font-weight: 600;
  color: var(--text);
}

.timeline__desc {
  font-size: var(--fs-small);
  color: var(--muted);
  max-width: 40ch;
}

@media (max-width: 63.9rem) {
  .about {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 35rem) {
  .about__facts {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Usługi
   -------------------------------------------------------------------------- */
.services {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-5);
}

.service {
  position: relative;
  display: grid;
  grid-template-rows: auto auto auto 1fr;
  align-content: start;
  gap: var(--s-4);
  padding: var(--s-6);
  border-radius: var(--r-lg);
  background: var(--bg-2);
  border: 1px solid var(--line);
  overflow: hidden;
  transition:
    transform var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}

.service::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(28rem 14rem at var(--mx, 50%) var(--my, 0%), var(--accent-soft), transparent 60%);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  pointer-events: none;
}

.service:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-2);
}

.service:hover::before {
  opacity: 1;
}

.service__icon {
  width: 3.5rem;
  height: 3.5rem;
  display: grid;
  place-items: center;
  border-radius: var(--r-md);
  background: var(--accent-soft);
  border: 1px solid rgba(245, 165, 36, 0.25);
  color: var(--accent);
}

.service__icon svg {
  width: 1.75rem;
  height: 1.75rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service__icon path,
.service__icon rect,
.service__icon circle,
.service__icon line {
  stroke-dasharray: 120;
  stroke-dashoffset: 120;
  transition: stroke-dashoffset 1200ms var(--ease-out);
}

.is-in .service__icon path,
.is-in .service__icon rect,
.is-in .service__icon circle,
.is-in .service__icon line {
  stroke-dashoffset: 0;
}

.service h3 {
  font-size: var(--fs-h3);
}

.service > p {
  color: var(--muted);
  min-height: calc(3 * 1.6em);
}

.service__list {
  display: grid;
  gap: var(--s-2);
  font-size: var(--fs-small);
  color: var(--text-2);
}

.service__list li {
  display: flex;
  gap: var(--s-2);
  align-items: flex-start;
}

.service__list svg {
  flex: none;
  width: 1rem;
  height: 1rem;
  margin-top: 0.2rem;
  color: var(--accent);
}

@media (max-width: 63.9rem) {
  .services {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Technologie
   -------------------------------------------------------------------------- */
.stack {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-5);
}

.stack__group {
  padding: var(--s-5);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--bg-2);
}

.stack__group h3 {
  font-size: var(--fs-small);
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--s-4);
}

.stack__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 2.25rem;
  padding: 0 var(--s-3);
  border-radius: var(--r-sm);
  background: var(--bg-3);
  border: 1px solid var(--line);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--text-2);
  transition:
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.tag:hover {
  border-color: var(--accent);
  color: var(--text);
  transform: translateY(-2px);
}

.tag--hot {
  border-color: rgba(245, 165, 36, 0.4);
  color: var(--accent);
  background: var(--accent-soft);
}

/* Tagi materializują się kolejno po odsłonięciu grupy */
.stack__tags .tag {
  opacity: 0;
  transform: translateY(6px);
  filter: blur(4px);
  transition:
    opacity 500ms var(--ease-out),
    transform 500ms var(--ease-out),
    filter 500ms var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.is-in .stack__tags .tag {
  opacity: 1;
  transform: none;
  filter: blur(0);
}

.stack__tags .tag:nth-child(1) { transition-delay: 120ms; }
.stack__tags .tag:nth-child(2) { transition-delay: 180ms; }
.stack__tags .tag:nth-child(3) { transition-delay: 240ms; }
.stack__tags .tag:nth-child(4) { transition-delay: 300ms; }
.stack__tags .tag:nth-child(5) { transition-delay: 360ms; }
.stack__tags .tag:nth-child(6) { transition-delay: 420ms; }
.stack__tags .tag:nth-child(7) { transition-delay: 480ms; }

.is-in .stack__tags .tag:hover {
  transform: translateY(-2px);
  transition-delay: 0ms;
}

html.no-js .stack__tags .tag {
  opacity: 1;
  transform: none;
  filter: none;
}

.stack__note {
  margin-top: var(--s-6);
  color: var(--muted);
  font-size: var(--fs-small);
  max-width: 70ch;
}

@media (max-width: 63.9rem) {
  .stack {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Projekty
   -------------------------------------------------------------------------- */
.projects {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s-5);
}

.project {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: var(--s-5);
  padding: var(--s-6);
  border-radius: var(--r-lg);
  background: var(--bg-2);
  border: 1px solid var(--line);
  overflow: hidden;
  transition:
    transform var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}

.project::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transform: translateX(-30%);
  transition:
    opacity var(--dur-base) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
}

/* Linia podziału metryk rysuje się po odsłonięciu karty */
.project__metrics {
  border-top-color: transparent;
  background: linear-gradient(90deg, var(--accent), var(--line) 40%) left top / 0% 1px no-repeat;
  transition: background-size 1100ms var(--ease-out) 300ms;
}

.project.is-in .project__metrics {
  background-size: 100% 1px;
}

html.no-js .project__metrics {
  background-size: 100% 1px;
}

.project:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-2);
}

.project:hover::after {
  opacity: 1;
  transform: translateX(0);
}

.project__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--s-4);
}

.project__client {
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--muted);
  margin-top: var(--s-1);
}

.project h3 {
  font-size: 1.5rem;
}

.project__status {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-1) var(--s-3);
  border-radius: var(--r-pill);
  border: 1px solid rgba(245, 165, 36, 0.35);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.project__status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.project__body {
  display: grid;
  gap: var(--s-4);
}

.project__body p {
  color: var(--text-2);
}

.project__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) 0;
  border-top: 1px solid transparent;
  padding-top: var(--s-4);
}

.metric {
  display: flex;
  flex: 1 1 0;
  min-width: 0;
  flex-direction: column;
  gap: 0.125rem;
  padding-right: var(--s-4);
  margin-right: var(--s-4);
  border-right: 1px solid var(--line);
}

.metric__value {
  white-space: nowrap;
}

.metric:last-child {
  border-right: 0;
  margin-right: 0;
  padding-right: 0;
}

.metric__value {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.metric__label {
  font-size: var(--fs-small);
  color: var(--muted);
}

.project__foot {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  padding-top: var(--s-4);
  border-top: 1px solid var(--line);
}

.project__foot .tag {
  min-height: 1.875rem;
  font-size: var(--fs-label);
}

.project__link {
  margin-inline-start: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--accent);
}

.project__link svg {
  width: 0.875rem;
  height: 0.875rem;
  transition: transform var(--dur-base) var(--ease-out);
}

.project__link:hover svg {
  transform: translate(2px, -2px);
}

/* Karta-placeholder: ostatnie dziecko .projects, indeks = liczba kart + 1.
   Parzysty indeks = nieparzysta liczba kart projektów = wolna komórka
   w prawej kolumnie siatki dwukolumnowej - wtedy placeholder się pokazuje. */
.project--placeholder {
  display: none;
  background: none;
  border: 1px dashed var(--line);
  box-shadow: none;
}

.project--placeholder:nth-child(even) {
  display: grid;
}

.project--placeholder::after {
  content: none;
}

.project--placeholder .project__body {
  align-content: center;
}

.project--placeholder:hover {
  transform: none;
  border-color: var(--accent);
  box-shadow: none;
}

@media (max-width: 63.9rem) {
  .projects {
    grid-template-columns: 1fr;
  }

  .project--placeholder,
  .project--placeholder:nth-child(even) {
    display: none;
  }
}

@media (max-width: 35rem) {
  .project,
  .service,
  .stack__group,
  .contact__card {
    padding: var(--s-5);
  }

  .project__head {
    flex-wrap: wrap;
  }

  .project__status {
    order: -1;
  }

  .metric {
    flex-basis: 100%;
    border-right: 0;
    margin-right: 0;
    padding-right: 0;
    flex-direction: row;
    align-items: baseline;
    gap: var(--s-2);
  }
}

/* --------------------------------------------------------------------------
   Kontakt
   -------------------------------------------------------------------------- */
.contact {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2.5rem, 5vw, 6rem);
  align-items: center;
}

.contact__text {
  display: grid;
  gap: var(--s-5);
}

.contact__text h2 {
  font-size: var(--fs-h2);
}

.contact__text p {
  color: var(--text-2);
  max-width: 56ch;
}

.contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
}

.contact__card {
  display: grid;
  gap: var(--s-2);
  padding: var(--s-6);
  border-radius: var(--r-lg);
  background: var(--bg-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}

.contact__row {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-3) 0;
  border-bottom: 1px solid var(--line);
}

.contact__row:last-child {
  border-bottom: 0;
}

.contact__row svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--accent);
  justify-self: center;
}

.contact__label {
  display: block;
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact__value {
  display: block;
  font-weight: 500;
  color: var(--text);
  overflow-wrap: normal;
  word-break: normal;
}

.contact__value a:hover {
  color: var(--accent);
}

.copy {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  color: var(--muted);
  transition:
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
}

.copy:hover {
  color: var(--text);
  border-color: var(--line-strong);
}

.copy svg {
  grid-area: 1 / 1;
  width: 1rem;
  height: 1rem;
  transition:
    opacity var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out),
    filter var(--dur-base) var(--ease-out);
}

.copy .ico-check {
  opacity: 0;
  transform: scale(0.8);
  filter: blur(4px);
  color: var(--accent);
}

.copy.is-copied .ico-copy {
  opacity: 0;
  transform: scale(0.8);
  filter: blur(4px);
}

.copy.is-copied .ico-check {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
}

@media (max-width: 63.9rem) {
  .contact {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Stopka
   -------------------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--line);
  padding-block: var(--s-7);
  background: var(--bg-0);
  font-size: var(--fs-small);
  color: var(--muted);
}

.footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: var(--s-6);
}

.footer__brand img {
  height: 1.75rem;
  width: auto;
  margin-bottom: var(--s-3);
}

.footer h4 {
  font-family: var(--font-body);
  font-size: var(--fs-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: var(--s-3);
}

.footer ul {
  display: grid;
  gap: var(--s-2);
}

.footer a:hover {
  color: var(--accent);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-3);
  margin-top: var(--s-7);
  padding-top: var(--s-5);
  border-top: 1px solid var(--line);
  font-size: var(--fs-label);
}

@media (max-width: 47.9rem) {
  .footer__inner {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Odsłanianie przy przewijaniu
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(32px);
  filter: blur(10px);
  transition:
    opacity 900ms var(--ease-out),
    transform 900ms var(--ease-out),
    filter 900ms var(--ease-out);
  transition-delay: calc(var(--i, 0) * 110ms);
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
  filter: blur(0);
}

[data-reveal="left"] {
  transform: translateX(-28px);
}

[data-reveal="scale"] {
  transform: scale(0.94);
}

/* Pasek postępu przewijania w nawigacji */
.nav__progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(var(--scroll, 0));
  transform-origin: left;
  pointer-events: none;
}

/* Parallax hero (sterowany JS przez --py) */
.hero__scene,
.hero__scene[data-reveal].is-in {
  transform: translateY(calc(var(--py, 0) * 1px));
}

.hero__scene[data-reveal] {
  transition:
    opacity 900ms var(--ease-out),
    filter 900ms var(--ease-out);
}

.hero__scene[data-reveal]:not(.is-in) {
  transform: translateY(calc(var(--py, 0) * 1px)) scale(0.94);
  transition:
    opacity 900ms var(--ease-out),
    filter 900ms var(--ease-out),
    transform 900ms var(--ease-out);
}

.hero__stage {
  transform: translateY(calc(var(--py, 0) * -0.6px));
}

.hero__copy {
  transform: translateY(calc(var(--py, 0) * 0.35px));
}

/* Bez ruchu gdy użytkownik tego chce, lub gdy JS nie wystartował */
html.no-js [data-reveal] {
  opacity: 1;
  transform: none;
  filter: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal],
  .stack__tags .tag {
    opacity: 1;
    transform: none;
    filter: none;
  }

  .project__metrics {
    background-size: 100% 1px;
  }

  .hero__media video {
    display: none;
  }

  .timeline__rail::after {
    transform: scaleY(1);
  }

  .hero__scene,
  .hero__stage,
  .hero__copy {
    transform: none;
  }

  .nav__progress {
    display: none;
  }
}