/* uruchom.ai — bilingual brochure styles. Fonts loaded via Google Fonts CDN (Fraunces + Inter), matching the sibling project setup. */

:root {
  --navy:        #0b1220;
  --navy-2:      #131c2e;
  --off-white:   #f5f1ea;
  --off-white-2: #ece6da;
  --amber:       #d99343;
  --amber-2:     #c47820;
  --steel:       #6a7589;
  --electric:    #4a7ab8;

  --text-on-dark:  #f3eee6;
  --text-on-dark-mute: #b9b3a8;
  --text-on-light: #1a1e28;
  --text-on-light-mute: #4f5566;

  --focus-on-dark:  #9cc1ff;
  --focus-on-light: #1b2a4a;

  --max-w: 1280px;
  --pad-x: clamp(1.25rem, 4vw, 3.5rem);

  --t-xs:   clamp(0.78rem, 0.74rem + 0.2vw, 0.9rem);
  --t-sm:   clamp(0.9rem, 0.85rem + 0.25vw, 1rem);
  --t-base: clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  --t-md:   clamp(1.1rem, 1rem + 0.5vw, 1.25rem);
  --t-lg:   clamp(1.55rem, 1.3rem + 1.1vw, 2.15rem);
  --t-xl:   clamp(2.2rem, 1.6rem + 2.8vw, 3.75rem);
  --t-2xl:  clamp(2.6rem, 1.8rem + 3.6vw, 4.75rem);
  --t-3xl:  clamp(3rem, 2rem + 4.5vw, 6rem);

  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --ease: cubic-bezier(.2,.7,.2,1);

  --nav-h: clamp(56px, 6vh, 72px);
}

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--t-base);
  line-height: 1.6;
  color: var(--text-on-light);
  background: var(--off-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, picture { display: block; max-width: 100%; height: auto; }

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s var(--ease), opacity .25s var(--ease);
}
a:hover { opacity: .85; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0;
  font-variation-settings: 'opsz' 144;
}

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

/* focus rings */
:focus-visible { outline: 2px solid var(--focus-on-light); outline-offset: 3px; border-radius: 2px; }
.section--dark :focus-visible { outline-color: var(--focus-on-dark); }

/* skip link */
.skip-link {
  position: fixed;
  top: -100px; left: 1rem;
  background: var(--navy);
  color: var(--off-white);
  padding: .9rem 1.1rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  z-index: 1000;
  border-radius: 4px;
  font-size: var(--t-sm);
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 1rem; }

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

/* ─────────── nav ─────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--pad-x);
  z-index: 100;
  background: transparent;
  color: var(--text-on-dark);
  transition: background-color .35s var(--ease), border-color .35s var(--ease), backdrop-filter .35s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom-color: rgba(255,255,255,0.06);
}
.nav__brand {
  font-family: var(--font-display);
  font-size: var(--t-md);
  letter-spacing: -0.02em;
  font-variation-settings: 'opsz' 14, 'SOFT' 50;
}
.nav__links {
  display: flex;
  gap: clamp(0.75rem, 1.6vw, 1.75rem);
  font-size: var(--t-sm);
}
.nav__links a {
  position: relative;
  padding: .25rem 0;
  white-space: nowrap;
}
.nav__links a[aria-current="location"]::after {
  content: '';
  position: absolute;
  inset: auto 0 -4px 0;
  height: 2px;
  background: var(--amber);
}
.nav__actions {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.nav__lang {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  font-size: var(--t-xs);
  letter-spacing: .12em;
  font-weight: 500;
  border: 1px solid currentColor;
  padding: .5rem .8rem;
  border-radius: 2px;
  opacity: .8;
}
.nav__lang:hover { opacity: 1; }
.nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  font-size: var(--t-xs);
  letter-spacing: .08em;
  text-transform: uppercase;
  background: var(--amber);
  color: var(--navy);
  padding: .7rem 1rem;
  border-radius: 2px;
  font-weight: 600;
}
.nav__cta:hover { opacity: 1; background: var(--amber-2); }

@media (max-width: 720px) {
  .nav__links { display: none; }
}

/* ─────────── sections ─────────── */
.section {
  position: relative;
  padding-block: clamp(4rem, 9vw, 8rem);
  overflow: hidden;
  opacity: 1;
  transform: none;
  transition: opacity .9s var(--ease), transform .9s var(--ease);
}
.js .section:not(.hero):not(.is-visible) {
  opacity: 0;
  transform: translateY(28px);
}
.section.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .section,
  .js .section:not(.hero):not(.is-visible) { opacity: 1; transform: none; transition: none; }
}

.section--dark {
  background: var(--navy);
  color: var(--text-on-dark);
  --text-mute: var(--text-on-dark-mute);
}
.section--light {
  background: var(--off-white);
  color: var(--text-on-light);
  --text-mute: var(--text-on-light-mute);
}
.section--light + .section--light {
  background: var(--off-white-2);
}

.section__head { max-width: 64ch; margin-bottom: clamp(2rem, 4vw, 3.5rem); }
.section__title { font-size: var(--t-xl); }
.section__dek {
  font-size: var(--t-md);
  color: var(--text-mute);
  margin-top: .75rem;
  max-width: 56ch;
}

/* ─────────── hero ─────────── */
.hero {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-block: 0;
  opacity: 1; transform: none;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg picture {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}
.hero__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  filter: grayscale(1) brightness(.95) contrast(1.1);
  opacity: .55;
  animation: hero-ken-burns 22s ease-in-out infinite alternate;
}
@media (min-width: 900px) {
  .hero__bg img { will-change: transform, opacity; }
}
@keyframes hero-ken-burns {
  from { transform: scale(1.05) translate(-1%, 0); }
  to   { transform: scale(1.15) translate(2%, -2%); }
}
@media (prefers-reduced-motion: reduce) {
  .hero__bg img { animation: none; transform: none; }
}
.hero__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(65% 85% at 12% 18%, rgba(245,158,11,0.70), transparent 60%),
    radial-gradient(55% 75% at 88% 22%, rgba(59,130,246,0.60), transparent 60%),
    radial-gradient(80% 50% at 50% 105%, rgba(30,41,59,0.50), transparent 75%);
  animation: mesh-drift 40s ease-in-out infinite alternate;
  mix-blend-mode: normal;
  pointer-events: none;
}
.hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(226,232,240,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(226,232,240,0.07) 1px, transparent 1px);
  background-size: 56px 56px, 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, black, transparent 90%);
          mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, black, transparent 90%);
  opacity: .55;
}
@keyframes mesh-drift {
  0%   { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(-2%, 1%, 0) scale(1.05); }
  100% { transform: translate3d(2%, -1%, 0) scale(1.02); }
}
@media (prefers-reduced-motion: reduce) {
  .hero__mesh { animation: none; transform: none; }
}
.hero__content {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--nav-h) + 2rem);
  padding-bottom: clamp(6rem, 12vh, 9rem);
  max-width: 90ch;
}
.hero__headline {
  font-size: clamp(2.5rem, 1.3rem + 6.5vw, 7rem);
  font-variation-settings: 'opsz' 144;
  margin-bottom: clamp(1rem, 2vw, 1.75rem);
  text-shadow:
    0 2px 30px rgba(0,0,0,0.55),
    0 1px 4px rgba(0,0,0,0.4);
}
.hero__lede {
  font-size: clamp(1.15rem, 0.95rem + 0.8vw, 1.55rem);
  color: var(--text-on-dark);
  max-width: 60ch;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  text-shadow: 0 1px 12px rgba(0,0,0,0.55), 0 1px 3px rgba(0,0,0,0.35);
}
.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
}

/* ─────────── buttons ─────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .9rem 1.4rem;
  font-size: var(--t-sm);
  font-weight: 500;
  letter-spacing: .04em;
  border-radius: 2px;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}
.btn--primary { background: var(--amber); color: var(--navy); border-color: var(--amber); }
.btn--primary:hover { background: var(--amber-2); border-color: var(--amber-2); opacity: 1; }
.btn--ghost { background: transparent; color: currentColor; border-color: currentColor; }
.btn--ghost:hover { background: rgba(255,255,255,0.08); opacity: 1; }
.section--light .btn--ghost:hover { background: rgba(0,0,0,0.05); }

/* ─────────── marquee ─────────── */
.marquee {
  position: relative;
  z-index: 2;
  width: 100%;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.10);
  border-bottom: 1px solid rgba(255,255,255,0.10);
  background: rgba(11, 18, 32, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding-block: .9rem;
  font-family: var(--font-body);
  font-size: var(--t-sm);
  letter-spacing: .04em;
  color: var(--text-on-dark);
}
.marquee__inner {
  display: inline-flex;
  align-items: center;
  gap: 1.25rem;
  white-space: nowrap;
  animation-name: marquee-scroll;
  animation-duration: 55s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  will-change: transform;
}
.marquee__item { font-variant-numeric: tabular-nums; }
.marquee__sep { color: var(--amber); opacity: .8; }

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee__inner {
    animation-name: none;
    transform: none;
  }
}

/* ─────────── why (Dlaczego teraz) ─────────── */
.why::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(55vw 55vh at 90% 0%, rgba(245,158,11,0.30), transparent 65%),
    radial-gradient(65vw 60vh at 0% 100%, rgba(59,130,246,0.18), transparent 70%);
  pointer-events: none;
}
.why > .container { position: relative; }

.why__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2vw, 2rem);
}
@media (max-width: 900px) { .why__grid { grid-template-columns: 1fr; } }

.card {
  background: #fff;
  border: 1px solid rgba(11,18,32,0.06);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.card:hover { transform: translateY(-3px); box-shadow: 0 30px 50px -30px rgba(11,18,32,0.25); }
.card--photo picture { aspect-ratio: 4 / 3; overflow: hidden; }
.card--photo img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.card--photo:hover img { transform: scale(1.04); }
.card__body { padding: clamp(1.25rem, 2vw, 2rem); display: flex; flex-direction: column; gap: .75rem; }
.card__eyebrow {
  font-size: var(--t-xs);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--amber-2);
  margin: 0;
}
.card__title { font-size: var(--t-lg); margin: 0; }
.card__text { font-size: var(--t-base); color: var(--text-on-light-mute); margin: 0; }

/* ─────────── myths & facts ─────────── */
.myths { background: var(--off-white-2); }
.myths::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(55vw 60vh at 100% 30%, rgba(245,158,11,0.18), transparent 70%),
    radial-gradient(60vw 50vh at 0% 80%, rgba(59,130,246,0.12), transparent 70%);
  pointer-events: none;
}
.myths > .container { position: relative; }
.myths__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1rem, 2vw, 1.75rem);
}
@media (max-width: 720px) { .myths__grid { grid-template-columns: 1fr; } }

.myth-card {
  background: #fff;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid rgba(11,18,32,0.06);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
}
.myth-card__num {
  font-family: var(--font-display);
  font-size: var(--t-xl);
  line-height: 1;
  color: var(--amber);
  margin: 0 0 .25rem;
  font-variation-settings: 'opsz' 96, 'wght' 400;
}
.myth-card__myth, .myth-card__fact { margin: 0; font-size: var(--t-base); }
.myth-card__myth { color: var(--text-on-light-mute); }
.myth-card__myth strong { color: var(--text-on-light); font-weight: 600; }
.myth-card__fact strong { color: var(--amber-2); font-weight: 600; }

/* ─────────── timeline ─────────── */
.timeline-section { background: var(--off-white); }
.timeline-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60vw 60vh at 50% 0%, rgba(245,158,11,0.22), transparent 70%),
    radial-gradient(70vw 50vh at 50% 100%, rgba(59,130,246,0.14), transparent 70%);
  pointer-events: none;
}
.timeline-section > .container { position: relative; }
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1rem, 2vw, 1.5rem);
  position: relative;
}
@media (max-width: 900px) { .timeline { grid-template-columns: 1fr; } }
.timeline__node {
  position: relative;
  background: #fff;
  border: 1px solid rgba(11,18,32,0.06);
  border-top: 3px solid var(--amber);
  padding: clamp(1.5rem, 2.4vw, 2.25rem);
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: .65rem;
}
.timeline__num {
  font-family: var(--font-display);
  font-size: var(--t-2xl);
  line-height: 1;
  color: var(--navy);
  margin: 0;
  font-variation-settings: 'opsz' 144;
}
.timeline__title { font-size: var(--t-lg); margin: 0; }
.timeline__text { font-size: var(--t-base); color: var(--text-on-light-mute); margin: 0; }
.timeline__coda {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  font-size: var(--t-md);
  color: var(--text-on-light-mute);
  max-width: 60ch;
  font-style: italic;
}

/* ─────────── contact ─────────── */
.contact { padding-block: clamp(5rem, 12vw, 10rem); }
.contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70vw 70vh at 12% 100%, rgba(245,158,11,0.45), transparent 60%),
    radial-gradient(80vw 70vh at 100% 10%, rgba(59,130,246,0.35), transparent 65%),
    radial-gradient(60vw 50vh at 50% 50%, rgba(30,41,59,0.55), transparent 80%);
  animation: mesh-drift 50s ease-in-out infinite alternate;
  pointer-events: none;
}
.contact::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(226,232,240,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(226,232,240,0.06) 1px, transparent 1px);
  background-size: 56px 56px, 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 85% 80% at 50% 50%, black, transparent 85%);
          mask-image: radial-gradient(ellipse 85% 80% at 50% 50%, black, transparent 85%);
  opacity: .4;
}
.contact > .container { position: relative; }
.contact__text {
  font-size: var(--t-md);
  color: var(--text-on-dark-mute);
  max-width: 60ch;
  margin-block: clamp(1rem, 2vw, 1.5rem) clamp(2rem, 4vw, 3rem);
}
.contact__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
}

/* ─────────── footer ─────────── */
.footer {
  background: var(--navy);
  color: var(--text-on-dark-mute);
  padding-block: clamp(2rem, 4vw, 3.5rem);
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: var(--t-sm);
  letter-spacing: .03em;
}
.footer__inner { display: flex; flex-direction: column; gap: .35rem; }
.footer__line { margin: 0; }
.footer__legal {
  margin-top: 1rem;
  font-size: var(--t-xs);
  opacity: .8;
}
.footer__legal a { text-decoration: underline; text-underline-offset: 3px; }
.footer__legal a:hover { color: var(--amber); }

/* hide outline if user is mousing */
:focus:not(:focus-visible) { outline: none; }

/* ─────────── 404 ─────────── */
.page-404 {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--navy);
  color: var(--text-on-dark);
  padding: 2rem;
}
.page-404__inner { text-align: center; max-width: 42ch; }
.page-404__code {
  font-family: var(--font-display);
  font-size: var(--t-2xl);
  margin: 0 0 1rem;
  color: var(--amber);
  font-weight: 700;
  line-height: 1;
}
.page-404__msg {
  font-size: var(--t-md);
  margin: 0 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

/* ─────────── privacy ─────────── */
.privacy { padding-block: clamp(5rem, 10vw, 8rem); padding-top: calc(var(--nav-h) + clamp(3rem, 5vw, 5rem)); }
.privacy h1 { font-size: var(--t-xl); margin-bottom: 1rem; }
.privacy h2 {
  font-size: var(--t-lg);
  margin: 2.5rem 0 .75rem;
  font-family: var(--font-display);
}
.privacy p { max-width: 64ch; margin-bottom: 1rem; }
.privacy__lang { margin-bottom: 3rem; }
.privacy__lang + .privacy__lang { border-top: 1px solid rgba(11,18,32,0.08); padding-top: 3rem; }
.privacy__back { display: inline-block; margin-top: 2rem; }