/* =========================================================================
   peczkowski.dev — design system
   Stack: czysty CSS. Tło: czerń. Akcenty: gradienty "fluid"
   (fiolet -> magenta -> czerwień -> pomarańcz) wyprowadzone z logo.
   Fonty: Sora (nagłówki), Inter (tekst), JetBrains Mono (akcenty tech).
   ========================================================================= */

/* ----- Zmienne / design tokens ----- */
:root {
  /* Kolory marki (z logo) */
  --c-violet: #7b2ff7;
  --c-magenta: #e0218a;
  --c-red: #ff2d2d;
  --c-orange: #ff7a18;

  /* Tło i powierzchnie (ciemny motyw bazowy) */
  --bg: #0a0a0b;
  --bg-elev: #131316;
  --bg-elev-2: #1c1c21;
  --border: #2a2a31;

  /* Tekst */
  --text: #f5f5f7;
  --text-muted: #b5b5c0;
  --text-dim: #82828f;

  /* Gradient marki (fluid) */
  --grad-brand: linear-gradient(120deg, var(--c-violet), var(--c-magenta) 40%, var(--c-red) 70%, var(--c-orange));
  --grad-soft: linear-gradient(120deg, rgba(123,47,247,.18), rgba(224,33,138,.14), rgba(255,122,24,.12));

  /* Typografia */
  --font-head: "Sora", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", monospace;

  /* Skala płynna */
  --step-fluid-h1: clamp(2.4rem, 6vw, 4.6rem);
  --step-fluid-h2: clamp(1.8rem, 4vw, 2.8rem);
  --step-fluid-lead: clamp(1.05rem, 2vw, 1.35rem);

  /* Promienie / cienie / odstępy */
  --radius: 16px;
  --radius-lg: 28px;
  --shadow: 0 18px 50px rgba(0, 0, 0, .45);
  --container: 1180px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --section-y: clamp(4rem, 9vw, 8rem);
}

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

html { scroll-behavior: smooth; }

body { max-width: 100%; overflow-x: hidden; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  text-wrap: pretty;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

h1, h2, h3 {
  font-family: var(--font-head);
  line-height: 1.1;
  font-weight: 700;
  margin: 0 0 .6em;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

:focus-visible {
  outline: 2px solid var(--c-magenta);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ----- Utilities ----- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.eyebrow {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 1rem;
}

.grad-text {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: var(--step-fluid-lead);
  color: var(--text-muted);
  max-width: 60ch;
  text-wrap: pretty;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--bg-elev-2);
  color: var(--text);
  padding: .75rem 1rem;
  z-index: 200;
  border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

/* ----- Przyciski ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .95rem;
  line-height: 1.1;
  padding: .6rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, opacity .2s ease;
}
.btn svg { width: 1.15em; height: 1.15em; }
.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: 0 10px 30px rgba(224, 33, 138, .25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 38px rgba(224, 33, 138, .35); }
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--c-magenta); transform: translateY(-2px); }

/* CTA w nagłówku: pełny tekst na desktopie, okrągła ikona na mobile */
.btn-contact .btn-icon { display: none; }
.btn-contact .btn-label { display: inline; }

/* ----- Header / nawigacja ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 11, .72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, background .3s ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
  background: rgba(10, 10, 11, .92);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 72px;
  position: relative;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
}
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.brand span { color: var(--text); }
.brand b { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.nav-links a { color: var(--text-muted); font-size: .96rem; transition: color .2s ease; }
.nav-links a:hover { color: var(--text); }

.nav-actions { display: flex; align-items: center; gap: .9rem; }
.lang-switch { display: flex; gap: .35rem; font-family: var(--font-mono); font-size: .8rem; }
.lang-switch a { color: var(--text-dim); padding: .2rem .35rem; transition: color .2s ease; }
.lang-switch a:hover { color: var(--text-muted); }
.lang-switch a[aria-current="true"] { color: var(--text); font-weight: 600; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  cursor: pointer;
  color: var(--text);
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  margin: 0 auto;
  position: relative;
  transition: transform .25s ease, opacity .25s ease, background .25s ease;
}
.nav-toggle span::before { position: absolute; top: -6px; left: 0; }
.nav-toggle span::after { position: absolute; top: 6px; left: 0; }

/* Hamburger -> X gdy menu otwarte */
.nav.is-open .nav-toggle span { background: transparent; }
.nav.is-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav.is-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* ----- Tła dekoracyjne (fluid blobs) ----- */
.fluid-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}
.blob {
  position: absolute;
  width: 46vw;
  height: 46vw;
  max-width: 620px;
  max-height: 620px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .5;
  animation: floaty 18s ease-in-out infinite alternate;
}
.blob-1 { background: radial-gradient(circle, var(--c-violet), transparent 65%); top: -10%; left: -8%; }
.blob-2 { background: radial-gradient(circle, var(--c-magenta), transparent 65%); top: 10%; right: -12%; animation-delay: -4s; }
.blob-3 { background: radial-gradient(circle, var(--c-orange), transparent 65%); bottom: -18%; left: 25%; animation-delay: -8s; }

@keyframes floaty {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(0, -40px, 0) scale(1.08); }
}

/* ----- Hero ----- */
.hero { position: relative; padding-block: clamp(2.5rem, 7vw, 6rem); }
.hero-inner { display: block; }
.hero-visual { position: relative; margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.hero-visual img {
  width: 100%;
  max-height: clamp(260px, 42vw, 480px);
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.hero-text {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.hero h1 { font-size: var(--step-fluid-h1); margin: 0; text-wrap: balance; }
.hero .lead { margin-top: 0; margin-bottom: 2rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; }
.tagline-chip {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: .4rem .9rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  margin-bottom: 1.5rem;
  background: var(--grad-soft);
}

/* ----- Sekcje ogólne ----- */
.section-head { max-width: 720px; margin-bottom: 3rem; }
.section-head h2 { font-size: var(--step-fluid-h2); text-wrap: balance; }
.section-head .lead { max-width: 100%; }

/* O mnie */
.about { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.about-photo img { border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow); }

/* Oferta */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  position: relative;
  overflow: hidden;
  transition: transform .25s ease, border-color .25s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.card:hover { transform: translateY(-4px); border-color: #3a3a44; }
.card:hover::before { transform: scaleX(1); }
.card h3 { font-size: 1.2rem; }
.card p { color: var(--text-muted); margin: 0; text-wrap: pretty; }
.card .ico { font-size: 1.6rem; margin-bottom: .8rem; display: block; }

/* Realizacje */
.projects { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.project {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .25s ease, border-color .25s ease;
}
.project:hover { transform: translateY(-4px); border-color: #3a3a44; }
.project-media { aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-elev-2); }
.project-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.project:hover .project-media img { transform: scale(1.05); }
.project-body { padding: 1.5rem; display: flex; flex-direction: column; gap: .8rem; flex: 1; }
.project-body h3 { font-size: 1.15rem; margin: 0; }
.project-body p { color: var(--text-muted); margin: 0; flex: 1; }
.tech-list { display: flex; flex-wrap: wrap; gap: .5rem; }
.tech-tag {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--text-muted);
  padding: .3rem .6rem;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--bg-elev-2);
}

/* Kontakt */
.contact { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(2rem, 5vw, 4rem); }
.contact-info ul { display: grid; gap: 1rem; margin-top: 1.5rem; }
.contact-info li { display: flex; gap: .8rem; align-items: center; color: var(--text-muted); }
.contact-info a:hover { color: var(--text); }
.contact-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  flex: 0 0 auto;
  color: var(--text);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.contact-ico svg { width: 20px; height: 20px; }
.socials { display: flex; gap: .8rem; margin-top: 2rem; }
.socials a {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  transition: border-color .2s ease, color .2s ease, transform .2s ease, background .2s ease;
}
.socials a svg { width: 20px; height: 20px; }
.socials a:hover { color: var(--text); border-color: var(--c-magenta); background: var(--bg-elev); transform: translateY(-2px); }

form { display: grid; gap: 1.1rem; }
.field { display: grid; gap: .45rem; }
label { font-size: .9rem; color: var(--text-muted); font-weight: 500; }
.field-opt { color: var(--text-muted); font-weight: 400; opacity: .7; font-size: .85em; }
input, textarea {
  width: 100%;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  padding: .85rem 1rem;
  font: inherit;
  transition: border-color .2s ease;
}
input:focus, textarea:focus { border-color: var(--c-magenta); outline: none; }
textarea { resize: vertical; min-height: 140px; }
.consent { display: flex; gap: .6rem; align-items: flex-start; font-size: .85rem; color: var(--text-dim); }
.consent input { width: auto; margin-top: .25rem; }
.form-status { font-size: .9rem; min-height: 1.2em; }
.form-status.ok { color: #5ad19a; }
.form-status.err { color: #ff7a7a; }
.hp { position: absolute; left: -9999px; opacity: 0; }

/* ----- Stopka ----- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
  padding-block: 3.5rem 2rem;
}
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem; }
.footer-grid h4 { font-family: var(--font-head); font-size: .95rem; margin: 0 0 1rem; color: var(--text); }
.footer-grid a, .footer-grid li { color: var(--text-muted); font-size: .92rem; }
.footer-grid a:hover { color: var(--text); }
.footer-grid ul { display: grid; gap: .6rem; }
.footer-contact li a { display: inline-flex; align-items: center; gap: .55rem; }
.footer-ico { width: 16px; height: 16px; flex: 0 0 auto; color: var(--text); }
.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--text-dim);
  font-size: .85rem;
}

/* ----- Baner cookies (RODO) ----- */
.cookie-banner {
  position: fixed;
  inset: auto 1rem 1rem 1rem;
  max-width: var(--container);
  margin-inline: auto;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem clamp(1.25rem, 3vw, 2rem);
  box-shadow: var(--shadow);
  z-index: 150;
  display: none;
}
.cookie-banner.is-visible {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.cookie-banner p { margin: 0; flex: 1 1 320px; font-size: .9rem; color: var(--text-muted); }
.cookie-actions { display: flex; gap: .8rem; flex-wrap: wrap; flex: 0 0 auto; }

/* ----- Przycisk powrotu do góry ----- */
.btn-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 90;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: var(--grad-brand);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 6px 24px rgba(224, 33, 138, .3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .3s ease, visibility .3s ease, transform .3s ease, box-shadow .3s ease;
  display: grid;
  place-items: center;
}
.btn-top svg { width: 22px; height: 22px; }
.btn-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.btn-top:hover {
  box-shadow: 0 10px 32px rgba(224, 33, 138, .45);
  transform: translateY(-3px);
}
.btn-top:active { transform: translateY(0); }

/* ----- Strony treściowe (prawne) ----- */
.legal { max-width: 800px; }
.legal h1 { font-size: var(--step-fluid-h2); }
.legal h2 { font-size: 1.4rem; margin-top: 2.5rem; }
.legal p, .legal li { color: var(--text-muted); }
.legal ul { list-style: disc; padding-left: 1.3rem; display: grid; gap: .5rem; }
.legal .placeholder { color: var(--c-orange); font-family: var(--font-mono); font-size: .9em; }

/* ----- Responsywność ----- */
@media (max-width: 880px) {
  .about, .contact { grid-template-columns: 1fr; }
  .hero-text { grid-template-columns: 1fr; gap: 1.25rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  /* Nawigacja mobilna: panel rozwijany zakotwiczony pod headerem */
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg-elev);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: .5rem var(--gutter) 1rem;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform .25s ease, opacity .25s ease, visibility .25s;
  }
  .nav.is-open .nav-links {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .nav-links a { padding: .9rem .25rem; width: 100%; border-bottom: 1px solid var(--border); }
  .nav-links li:last-child a { border-bottom: 0; }

  /* CTA w nagłówku -> okrągły przycisk z kopertą */
  .nav-actions .btn-contact {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    flex: 0 0 auto;
  }
  .nav-actions .btn-contact .btn-label { display: none; }
  .nav-actions .btn-contact .btn-icon { display: inline-flex; }
  .nav-actions .btn-contact svg { width: 1.25em; height: 1.25em; }
}

@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .nav-actions { gap: .6rem; }
  .hero-cta .btn { flex: 1 1 auto; }
}

/* ----- Dostępność: ograniczenie ruchu ----- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .blob { animation: none; }
}