/* silicate.pl — Wariant B · Technical Grid
   Statyczny landing page. Tokens + layout + komponenty.
*/

:root {
  --bg:            #0a0a0a;
  --bg-2:          #0f0f0f;
  --bg-3:          #141414;
  --fg:            #e8e8e8;
  --fg-dim:        #888888;
  --fg-faint:      #bbbbbb;
  --border:        #1a1a1a;
  --border-strong: #2a2a2a;
  --accent:        #a8e6e8;
  --success:       oklch(0.75 0.15 145);

  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --max-content: 1200px;
  --pad-x: 48px;
  --pad-y: 100px;

  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

@media (max-width: 767px) {
  :root {
    --pad-x: 24px;
    --pad-y: 64px;
  }
}

/* Reset --------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img, svg { display: block; max-width: 100%; }

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

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: 8px;
  top: -40px;
  z-index: 1000;
  background: var(--fg);
  color: var(--bg);
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  transition: top 150ms var(--ease);
}
.skip-link:focus { top: 8px; }

.bracket { color: var(--fg-dim); }

/* Nav ---------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 32px;
  background: rgba(10,10,10,0.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav__logo { display: inline-flex; color: var(--fg); flex-shrink: 0; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav__link {
  color: var(--fg-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: lowercase;
  white-space: nowrap;
  transition: color 150ms var(--ease);
}
.nav__link:hover,
.nav__link:focus-visible { color: var(--fg); }
.nav__link:hover .bracket,
.nav__link:focus-visible .bracket { color: var(--fg); }

.lang {
  display: inline-flex;
  border: 1px solid var(--border);
  background: var(--bg-2);
  padding: 2px;
  flex-shrink: 0;
}
.lang__btn {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 5px 10px;
  color: var(--fg-dim);
  transition: color 150ms var(--ease), background 150ms var(--ease);
}
.lang__btn.is-active {
  background: var(--bg);
  color: var(--fg);
}
.lang__btn:hover { color: var(--fg); }

@media (max-width: 640px) {
  .nav { padding: 12px 20px; }
  .nav__links { gap: 12px; }
  .nav__logo-svg { width: 120px; height: 24px; }
  /* Na wąskich ekranach kotwice [usługi]/[portfolio]/[kontakt] zabierają
     całą szerokość — chowamy je, zostawiamy tylko logo + toggle języka.
     Sekcje są w pionie i tak osiągalne scrollem. */
  .nav__links .nav__link { display: none; }
}

/* Hero --------------------------------------------------------------- */
.hero {
  position: relative;
  padding: var(--pad-y) var(--pad-x) calc(var(--pad-y) + 20px);
  min-height: 720px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

@media (max-width: 767px) { .hero { min-height: 560px; } }

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.hero__grid span {
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: rgba(220,220,220,0.04);
}

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 980px;
  margin: 0 auto;
  width: 100%;
  pointer-events: none;
}

.hero__inner > * { pointer-events: auto; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  margin: 0 0 32px;
  border: 1px solid var(--border);
  background: rgba(15,15,15,0.7);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero__badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
}
.hero__badge-sep { color: #1f1f1f; }
.hero__badge-version { opacity: 0.5; }

.hero__title {
  font-family: var(--font-mono);
  font-size: clamp(38px, 5.5vw, 72px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.03em;
  text-transform: lowercase;
  margin: 0 0 32px;
}
.hero__title span { display: block; }
.hero__title--accent { color: var(--accent); }

.hero__lead {
  font-family: var(--font-body);
  font-size: 19px;
  line-height: 1.55;
  max-width: 600px;
  color: var(--fg-faint);
  margin: 0 0 40px;
  text-wrap: pretty;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 60px;
}

.hero__meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero__meta-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  animation: pulse 2s infinite;
}

@media (prefers-reduced-motion: reduce) {
  .hero__meta-dot { animation: none; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* Buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  transition: background 150ms var(--ease), color 150ms var(--ease), border-color 150ms var(--ease);
}
.btn--primary {
  background: var(--fg);
  color: var(--bg);
  font-weight: 600;
}
.btn--primary:hover { background: #fff; }
.btn--primary .btn__square {
  width: 8px;
  height: 8px;
  background: var(--bg);
}
.btn--ghost {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  padding: 14px 20px;
}
.btn--ghost:hover { border-color: var(--border-strong); background: var(--bg-3); }

/* Corner markers ---------------------------------------------------- */
.corner {
  position: absolute;
  width: 14px;
  height: 14px;
  z-index: 3;
  background:
    linear-gradient(to right, rgba(220,220,220,0.5) 2px, transparent 2px) top left / 14px 2px no-repeat,
    linear-gradient(to bottom, rgba(220,220,220,0.5) 2px, transparent 2px) top left / 2px 14px no-repeat;
}
.corner--tl { top: 16px; left: 16px; }
.corner--tr { top: 16px; right: 16px; transform: rotate(90deg); }
.corner--bl { bottom: 16px; left: 16px; transform: rotate(-90deg); }
.corner--br { bottom: 16px; right: 16px; transform: rotate(180deg); }

/* Section primitives ------------------------------------------------ */
.section__head {
  max-width: 720px;
  margin-bottom: 60px;
}
.crumb {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 16px;
}
.section__title {
  font-family: var(--font-mono);
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 500;
  letter-spacing: -0.03em;
  text-transform: lowercase;
  margin: 0 0 16px;
}
.section__lead {
  font-family: var(--font-body);
  font-size: 17px;
  color: var(--fg-faint);
  margin: 0;
  max-width: 600px;
}

/* Services ---------------------------------------------------------- */
.services {
  padding: var(--pad-y) var(--pad-x);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.services > * { max-width: var(--max-content); margin-left: auto; margin-right: auto; }

.services__grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 32px;
}

@media (max-width: 900px) {
  .services__grid { grid-template-columns: 1fr; }
}

.service-tabs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.service-tab {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 16px;
  background: transparent;
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 14px;
  text-align: left;
  text-transform: lowercase;
  color: var(--fg);
  transition: background 200ms var(--ease), border-color 200ms var(--ease);
  cursor: pointer;
}
.service-tab:hover {
  background: var(--bg-3);
  border-color: var(--border-strong);
}
.service-tab.is-active {
  background: var(--bg-3);
  border-color: var(--accent);
  border-left-width: 2px;
  padding-left: 15px;
}
.service-tab__n {
  color: var(--fg-dim);
  font-size: 12px;
}
.service-tab__title {
  flex: 1;
}
.service-tab__mark {
  font-size: 10px;
  color: var(--fg-dim);
}
.service-tab.is-active .service-tab__mark {
  color: var(--accent);
}

.service-panels {
  position: relative;
  min-width: 0;
}
.service-panel {
  border: 1px solid var(--border);
  background: var(--bg-2);
  min-height: 380px;
  display: flex;
  flex-direction: column;
}
.service-panel[hidden] { display: none; }
.service-panel__header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.service-panel__status {
  margin-left: auto;
  color: var(--accent);
}
.service-panel__body {
  padding: 40px;
}
@media (max-width: 600px) {
  .service-panel__body { padding: 28px 24px; }
}
.service-panel__title {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.02em;
  text-transform: lowercase;
  margin: 0 0 20px;
}
@media (max-width: 600px) {
  .service-panel__title { font-size: 28px; }
}
.service-panel__text {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--fg-faint);
  margin: 0 0 28px;
  max-width: 620px;
}
.service-panel__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 6px 10px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: #aaa;
  letter-spacing: 0.04em;
}

/* Portfolio --------------------------------------------------------- */
.portfolio {
  padding: var(--pad-y) var(--pad-x);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.portfolio > * {
  max-width: var(--max-content);
  margin-left: auto;
  margin-right: auto;
}
.portfolio__note {
  margin-top: 16px;
  margin-bottom: 0;
  color: var(--fg-dim);
  opacity: 0.7;
}

.portfolio__panel {
  border: 1px solid var(--border);
  background: var(--bg-2);
}
.portfolio__header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.portfolio__count {
  margin-left: auto;
  color: var(--accent);
}

.portfolio__marquee {
  position: relative;
  /* fallback bez JS: można poziomo przescrollować karty */
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
/* Z aktywnym marquee — chowamy scroll i włączamy animację */
.portfolio__marquee:has(.portfolio__track.has-marquee) {
  overflow: hidden;
  /* płynne wygaszanie krawędzi marquee */
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent 0,
    black 6%,
    black 94%,
    transparent 100%
  );
  mask-image: linear-gradient(
    90deg,
    transparent 0,
    black 6%,
    black 94%,
    transparent 100%
  );
}

.portfolio__track {
  display: flex;
  gap: 0;
  width: max-content;
}
.portfolio__track.has-marquee {
  animation: marquee-scroll 60s linear infinite;
}
.portfolio__marquee:hover .portfolio__track.has-marquee,
.portfolio__marquee:focus-within .portfolio__track.has-marquee {
  animation-play-state: paused;
}

@keyframes marquee-scroll {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-50%, 0, 0); }
}

.portfolio-card {
  flex: 0 0 220px;
  height: 180px;
  border-right: 1px solid var(--border);
  background: var(--bg-2);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
  text-decoration: none;
  color: inherit;
  transition: background 200ms var(--ease);
  position: relative;
}
.portfolio-card:hover,
.portfolio-card:focus-visible {
  background: var(--bg-3);
  outline: none;
}
.portfolio-card:focus-visible {
  box-shadow: inset 0 0 0 2px var(--accent);
}

.portfolio-card__logo-wrap {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.portfolio-card__logo {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(1) brightness(1.4) contrast(0.9);
  opacity: 0.85;
  transition: filter 250ms var(--ease), opacity 250ms var(--ease);
}
.portfolio-card:hover .portfolio-card__logo,
.portfolio-card:focus-visible .portfolio-card__logo {
  filter: none;
  opacity: 1;
}
.portfolio-card__logo-fallback {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0;
}

.portfolio-card__url {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg);
  letter-spacing: -0.01em;
  word-break: break-all;
  line-height: 1.3;
}
.portfolio-card__url-prefix {
  color: var(--fg-dim);
  opacity: 0.5;
}

.portfolio-card__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.portfolio-card__arrow {
  position: absolute;
  top: 12px;
  right: 14px;
  font-size: 12px;
  color: var(--fg-dim);
  opacity: 0;
  transition: opacity 200ms var(--ease), color 200ms var(--ease), transform 200ms var(--ease);
}
.portfolio-card:hover .portfolio-card__arrow,
.portfolio-card:focus-visible .portfolio-card__arrow {
  opacity: 1;
  color: var(--accent);
  transform: translate(2px, -2px);
}

@media (max-width: 480px) {
  .portfolio-card { flex-basis: 180px; height: 160px; padding: 20px 16px; }
  .portfolio-card__logo-wrap { width: 48px; height: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  .portfolio__marquee {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .portfolio__track {
    animation: none;
  }
  .portfolio-card[aria-hidden="true"] { display: none; }
}

/* Contact ----------------------------------------------------------- */
.contact {
  padding: var(--pad-y) var(--pad-x);
  background: var(--bg-2);
}
.contact__inner {
  max-width: var(--max-content);
  margin: 0 auto;
}
.contact__title {
  font-family: var(--font-mono);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 500;
  letter-spacing: -0.03em;
  text-transform: lowercase;
  margin: 0 0 16px;
}
.contact__lead {
  font-family: var(--font-body);
  font-size: 17px;
  color: var(--fg-faint);
  max-width: 580px;
  margin: 0 0 48px;
}
.cal-embed {
  width: 100%;
  min-height: 720px;
  border: 1px solid var(--border);
  background: var(--bg);
  overflow: hidden;
}
.cal-embed iframe {
  width: 100% !important;
  border: 0;
  display: block;
}
@media (max-width: 600px) {
  .cal-embed { min-height: 640px; }
}

/* Footer ----------------------------------------------------------- */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  gap: 24px;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-dim);
  letter-spacing: 0.04em;
}
.footer__logo { color: var(--fg-dim); display: inline-flex; }

@media (max-width: 600px) {
  .footer { padding: 20px 24px; gap: 12px; }
}