/* =========================================================
   KOD SPRZEDAŻY — DESIGN TOKENS

   Kolor: ciepła głęboka czerń (nie czysta czerń, nie kremowy
   default) + mosiądz/brąz jako jedyny akcent. Editorial,
   nie SaaS. Nie kremowo-terakotowy, nie neonowo-czarny.

   Typografia: Fraunces (display, edytorialny serif z
   charakterem) + Archivo (body, neutralny humanistyczny sans)
   + JetBrains Mono (wyłącznie do etykiet/eyebrow — subtelne
   nawiązanie do "kodu" bez estetyki AI/SaaS).

   Sygnatura: monospace'owe etykiety w nawiasach kwadratowych
   [ KIERUNEK ] — literalne, powściągliwe nawiązanie do nazwy
   marki, używane wyłącznie jako mikro-element, nigdy jako
   dekoracja całej sekcji.

   UWAGA PRODUKCYJNA: przed wdrożeniem publicznym rozważyć
   self-hosting fontów (Google Fonts CDN = transfer IP do
   Google, istotne przy RODO dla klienta w UE).
   ========================================================= */

:root {
  --color-bg:        #14130F;
  --color-bg-alt:     #1B1916;
  --color-bg-raised:  #211E19;
  --color-text:       #F3EFE6;
  --color-text-muted: #B9B2A4;
  --color-text-dim:   #837C6E;
  --color-accent:     #C9A876;
  --color-accent-dim: #8A7350;
  --color-line:       rgba(243, 239, 230, 0.14);
  --color-line-strong:rgba(243, 239, 230, 0.28);

  --font-display: "Fraunces", Georgia, serif;
  --font-body:    "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;

  --wrap-max: 1120px;
  --wrap-pad: 24px;

  --space-xs:  8px;
  --space-sm:  16px;
  --space-md:  32px;
  --space-lg:  64px;
  --space-xl:  112px;
  --space-2xl: 160px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (max-width: 639px) {
  :root {
    --space-xl: 72px;
    --space-lg: 44px;
    --space-md: 24px;
  }
}
@media (min-width: 640px) {
  :root { --wrap-pad: 40px; }
}
@media (min-width: 1024px) {
  :root { --wrap-pad: 64px; }
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, p, ol, ul { margin: 0; }
ol { padding: 0; list-style: none; }
button { font: inherit; background: none; border: none; color: inherit; cursor: pointer; }

@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;
  }
}

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

.wrap {
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding-inline: var(--wrap-pad);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-bg);
  padding: 12px 20px;
  z-index: 100;
  font-family: var(--font-mono);
  font-size: 14px;
}
.skip-link:focus {
  left: var(--wrap-pad);
  top: 12px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 19, 15, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.wordmark {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-text);
}
.wordmark span { color: var(--color-accent); }
.wordmark-by {
  display: inline-block;
  margin-left: 8px;
  padding-left: 8px;
  border-left: 1px solid var(--color-line-strong);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  font-style: normal;
  text-transform: uppercase;
  color: var(--color-text-dim);
  vertical-align: middle;
}

.lang-toggle {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 4px;
  color: var(--color-text-muted);
}
.lang-toggle .lang-sep { color: var(--color-text-dim); }
.lang-toggle span[data-active="true"] { color: var(--color-accent); }

/* ---------- Eyebrow / labels ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

/* ---------- Hero ---------- */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-block: var(--space-xl) var(--space-lg);
}
.hero-inner {
  max-width: 880px;
}
.hero-title {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-weight: 400;
  font-size: clamp(2.1rem, 6.5vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--color-text);
  opacity: 0;
  transform: translateY(16px);
  animation: rise 0.9s var(--ease) 0.15s forwards;
}
.hero-sub {
  margin-top: var(--space-md);
  max-width: 46ch;
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: var(--color-text-muted);
  opacity: 0;
  transform: translateY(12px);
  animation: rise 0.9s var(--ease) 0.35s forwards;
}
.hero-scrollcue {
  position: absolute;
  bottom: var(--space-md);
  left: var(--wrap-pad);
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  opacity: 0.6;
}

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

/* ---------- CTA ---------- */
.cta {
  display: inline-block;
  margin-top: var(--space-lg);
  padding: 16px 30px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
  opacity: 0;
  animation: rise 0.9s var(--ease) 0.55s forwards;
}
.cta:hover, .cta:focus-visible {
  background: var(--color-accent);
  color: var(--color-bg);
}
.cta-large { font-size: 15px; padding: 18px 34px; }

/* ---------- Sections ---------- */
.section {
  padding-block: var(--space-xl);
  border-top: 1px solid var(--color-line);
}
.section-alt { background: var(--color-bg-alt); }

.section-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.2;
  max-width: 20ch;
  margin-bottom: var(--space-lg);
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- What we do ---------- */
.grid-3 {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}
@media (min-width: 780px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}
.offer-card {
  border-top: 1px solid var(--color-line-strong);
  padding-top: var(--space-sm);
}
.offer-tag {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.offer-desc {
  font-size: 1.02rem;
  color: var(--color-text-muted);
  max-width: 36ch;
}

/* ---------- Method (Jak myślimy) ---------- */
.method-list {
  display: flex;
  flex-direction: column;
}
.method-list li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-block: 20px;
  border-top: 1px solid var(--color-line);
}
.method-list li:last-child {
  border-bottom: 1px solid var(--color-line);
}
.method-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
}
.method-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text-dim);
}
.method-label {
  font-family: var(--font-display);
  font-size: 1.2rem;
}
.method-desc {
  display: block;
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.55;
  max-width: 60ch;
}

@media (min-width: 640px) {
  .method-list li {
    flex-direction: row;
    align-items: baseline;
    gap: var(--space-sm);
    padding-block: 18px;
  }
  .method-head {
    flex: 0 0 224px;
  }
  .method-num { flex: 0 0 44px; }
  .method-label { font-size: 1.15rem; }
  .method-desc { flex: 1 1 auto; font-size: 0.98rem; }
}

/* ---------- Case 001 ---------- */
.case-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  margin-bottom: var(--space-lg);
  letter-spacing: -0.01em;
}
.case-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
}
.case-copy .case-label:first-child {
  margin-top: 0;
}
.case-question {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  line-height: 1.4;
  color: var(--color-text);
  max-width: 42ch;
}
.case-body {
  max-width: 62ch;
  color: var(--color-text-muted);
}
.case-media .case-label {
  margin-top: 0;
}

.case-grid {
  display: grid;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}
@media (min-width: 860px) {
  .case-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-xl);
    align-items: start;
  }
}

.case-media-frame {
  position: relative;
  aspect-ratio: 941 / 1672;
  border: 1px solid var(--color-line-strong);
  background: var(--color-bg-raised);
  overflow: hidden;
}
@media (min-width: 860px) {
  .case-media-frame { aspect-ratio: 1535 / 1024; }
}
.case-media-frame::before,
.case-media-frame::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 1px solid var(--color-accent);
  z-index: 2;
}
.case-media-frame::before { top: 12px; left: 12px; border-right: none; border-bottom: none; }
.case-media-frame::after  { bottom: 12px; right: 12px; border-left: none; border-top: none; }

.case-proof-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.credits {
  display: grid;
  gap: var(--space-sm);
  border-top: 1px solid var(--color-line-strong);
  padding-top: var(--space-md);
}
@media (min-width: 640px) {
  .credits { grid-template-columns: repeat(3, 1fr); }
}
.credit-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  margin-bottom: 4px;
}
.credit-value {
  display: block;
  font-size: 1.02rem;
  color: var(--color-text);
}

/* ---------- People ---------- */
.people-intro {
  max-width: 50ch;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  font-size: 1.05rem;
}
.people-flow {
  display: grid;
  gap: var(--space-lg);
  align-items: start;
}
@media (min-width: 860px) {
  .people-flow {
    grid-template-columns: 1fr 160px 1fr;
    gap: var(--space-md);
  }
}
.person-role {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}
.person-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.8rem;
  margin-bottom: var(--space-sm);
}
.person-competencies {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--color-text-dim);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-sm);
}
.person-bio {
  color: var(--color-text-muted);
  max-width: 40ch;
  font-size: 0.98rem;
}

.person-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-sm);
  padding-block: var(--space-md);
}
@media (min-width: 860px) {
  .person-connector { padding-block: var(--space-xs); }
}
.connector-line {
  width: 1px;
  height: 28px;
  background: var(--color-line-strong);
}
.connector-text {
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--color-text-dim);
  max-width: 22ch;
}

/* ---------- Contact ---------- */
.contact-inner { text-align: left; max-width: 640px; }
.contact-sub {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  max-width: 40ch;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-line);
  padding-block: var(--space-md);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-mark {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--color-text-dim);
}
.footer-by {
  color: var(--color-text-dim);
  opacity: 0.65;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-dim);
}