/* ============================================================
   DESIGN TOKENS — Infrako Brand
   ============================================================ */
:root {
  /* Colors */
  --color-bg:        #f5f5f3;
  --color-surface:   #ffffff;
  --color-border:    #e0dedd;
  --color-ink:       #1c1c1c;
  --color-muted:     #555553;   /* WCAG AA 5.5:1 on #f5f5f3 (was #6a6a67 ~3.9:1) */
  --color-accent:    #1c1c1c;
  --color-accent-hl: #E6B41D;   /* Infrako yellow */
  --color-accent-hl-dark: #c49a10;
  --color-nav-bar:   #E6B41D;   /* yellow top bar */

  /* Typography — Montserrat (headings) + Open Sans (body) */
  --font-sans:   'Open Sans', system-ui, sans-serif;
  --font-serif:  'Montserrat', system-ui, sans-serif;
  --font-body:   var(--font-sans);  /* alias used in inline styles */

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  8rem;

  /* Radius — sharper, more corporate */
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 10px;

  /* Nav height */
  --nav-h: 72px;

  /* Transitions */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 1.5rem);
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul { list-style: none; }

/* ============================================================
   LAYOUT HELPERS
   ============================================================ */
.container {
  width: min(1100px, 100% - 3rem);
  margin-inline: auto;
}

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

/* ============================================================
   SECTION TYPOGRAPHY
   ============================================================ */
.section__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-hl);
  margin-bottom: var(--space-sm);
}

.section__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-ink);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.section__title em {
  font-style: normal;
  color: var(--color-accent-hl);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  border: 2px solid transparent;
}

.btn--primary {
  background: var(--color-accent-hl);
  color: #1c1c1c;
  border-color: var(--color-accent-hl);
  font-family: var(--font-serif);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn--primary:hover {
  background: var(--color-accent-hl-dark);
  border-color: var(--color-accent-hl-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(230, 180, 29, 0.35);
}

.btn--ghost {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
  font-family: var(--font-serif);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn--ghost:hover {
  background: var(--color-ink);
  color: #fff;
  border-color: var(--color-ink);
  transform: translateY(-2px);
}

.btn--lg {
  padding: 1.1rem 2.5rem;
  font-size: 1.05rem;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: clamp(1.5rem, 5vw, 3rem);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  border-top: 4px solid var(--color-nav-bar);  /* Infrako yellow top stripe */
  transition: box-shadow var(--transition);
}

.nav.scrolled {
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}

.nav__logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 36px;
  width: auto;
  display: block;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted);
  transition: color var(--transition);
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 2px;
  background: var(--color-accent-hl);
  transition: width var(--transition);
}

.nav__links a:hover { color: var(--color-ink); }
.nav__links a:hover::after { width: 100%; }
.nav__links a.active { color: var(--color-ink); }
.nav__links a.active::after { width: 100%; }

.nav__cta {
  padding: 0.55rem 1.4rem;
  background: var(--color-accent-hl);
  border: 1.5px solid var(--color-accent-hl);
  border-radius: var(--radius-sm);
  color: var(--color-ink) !important;
  font-family: var(--font-serif);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.82rem;
  transition: background var(--transition), color var(--transition), transform var(--transition) !important;
}

.nav__cta:hover {
  background: var(--color-accent-hl-dark);
  border-color: var(--color-accent-hl-dark);
  transform: translateY(-1px);
}

.nav__cta::after { display: none !important; }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;           /* expanded for 44×44px touch target */
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.nav__burger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   MOBILE MENU
   ============================================================ */
.mobile-menu {
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  z-index: 99;
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.77, 0, 0.18, 1);
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu__link {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-ink);
  transition: color var(--transition);
}

.mobile-menu__link:hover { color: var(--color-accent-hl); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding-top: var(--nav-h);
  overflow: hidden;
}

.hero__photo {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.hero__photo-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(28,28,28,0.95) 0%, rgba(28,28,28,0.85) 50%, rgba(230,180,29,0.3) 100%);
  mix-blend-mode: multiply;
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 780px;
  padding-inline: 1.5rem;
  animation: fadeUp 0.5s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero__eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-hl);
  margin-bottom: var(--space-sm);
  animation: fadeUp 0.5s 0.1s ease both;
}

.hero__name {
  font-family: var(--font-serif);
  font-size: clamp(3.15rem, 9vw, 6.3rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.0;
  color: #ffffff;
  margin-bottom: var(--space-md);
  animation: fadeUp 0.5s 0.15s ease both;
}

.hero__name em {
  font-style: normal;
  color: var(--color-accent-hl);
}

.hero__tagline {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.6;
  margin-bottom: 2.5rem;
  animation: fadeUp 0.5s 0.2s ease both;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeUp 0.5s 0.25s ease both;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2.5rem; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fadeIn 1.5s 1s ease both;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.65), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.1); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  background: var(--color-surface);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.about__body {
  color: var(--color-muted);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
}

.about__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: var(--space-md);
}

.about__chip {
  padding: 0.45rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-muted);
  text-decoration: none;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  display: inline-block;
  cursor: pointer;
}

.about__chip:hover {
  border-color: var(--color-accent-hl);
  color: var(--color-ink);
  background: rgba(230,180,29,0.1);
}

.about__card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
}

.about__stat {
  text-align: center;
}

.about__stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-accent-hl);
}

.about__stat-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-top: 0.4rem;
}

.about__divider {
  height: 1px;
  background: var(--color-border);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

/* ============================================================
   SERVICES LIST (Zakres usług)
   ============================================================ */
.services__list {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--color-border);
}

.service-list-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-ink);
  transition: background var(--transition), color var(--transition);
  cursor: default;
}

.service-list-item:nth-child(odd)  { border-right: 1px solid var(--color-border); }

.service-list-item:hover {
  background: rgba(230, 180, 29, 0.07);
  color: var(--color-ink);
}

.service-list-item__num {
  color: var(--color-accent-hl);
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.service-card {
  padding: 2.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  cursor: default;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.07);
  border-color: var(--color-accent-hl);
  border-top: 3px solid var(--color-accent-hl);
}

.service-card__icon {
  width: 44px; height: 44px;
  color: var(--color-accent-hl);
  margin-bottom: 1.5rem;
}

.service-card__icon svg {
  width: 100%; height: 100%;
}

.service-card__title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.75rem;
}

.service-card__desc {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects {
  background: var(--color-surface);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.project-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: transform var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.1);
}

.project-card__img {
  display: block;
  position: relative;
  background: var(--color-ink);
  overflow: hidden;
}

.project-card__img img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease;
}

.project-card:hover .project-card__img img {
  transform: scale(1.05);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 1.25rem;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 60%);
}

.project-card__tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.8);
  background: rgba(0,0,0,0.3);
  backdrop-filter: blur(6px);
  padding: 0.35rem 0.85rem;
  border-radius: 100px;
}

.project-card__body {
  padding: 1.75rem;
}

.project-card__title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 0.6rem;
}

.project-card__desc {
  font-size: 0.88rem;
  color: var(--color-muted);
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.project-card__link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-ink);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  border-bottom: 1.5px solid var(--color-ink);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
}

.project-card__link:hover {
  color: var(--color-accent-hl);
  border-color: var(--color-accent-hl);
}

/* ============================================================
   STRENGTHS
   ============================================================ */
.strengths {
  background: var(--color-ink);
  color: #fff;
}

.strengths .section__label { color: var(--color-accent-hl); }

.strengths .section__title {
  color: #fff;
}

.strengths .section__title em {
  color: var(--color-accent-hl);
}

.strengths__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin-top: 3rem;
}

.strength-item__num {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-accent-hl);
  line-height: 1;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.strength-item__title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #fff;
  margin-bottom: 0.75rem;
}

.strength-item__desc {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.78);  /* WCAG AA ~5.5:1 on #1c1c1c (was 0.6 ~3.7:1) */
  line-height: 1.7;
}

/* ============================================================
   QUOTATION BANNER
   ============================================================ */
.quotation {
  position: relative;
  padding-block: 6rem;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.quotation__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.quotation__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}

.quotation__overlay {
  position: absolute;
  inset: 0;
  background: rgba(28,28,28,0.85);
}

.quotation__inner {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.quotation__text {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 2.5rem;
  font-style: italic;
  color: #fff;
}

.quotation__text::before {
  content: '"';
  display: block;
  font-size: 5rem;
  line-height: 0;
  color: var(--color-accent-hl);
  margin-bottom: 1rem;
  font-family: serif;
}

/* ============================================================
   CONTACT DETAILS
   ============================================================ */
.contact__details {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 2rem;
}

.contact__detail-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.contact__detail-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  background: rgba(230, 180, 29, 0.12);
  border: 1.5px solid var(--color-accent-hl);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-hl);
  margin-top: 0.1rem;
}

.contact__detail-icon svg {
  width: 18px; height: 18px;
}

.contact__detail-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  margin-bottom: 0.2rem;
}

.contact__detail-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.5;
  transition: color var(--transition);
}

a.contact__detail-value:hover { color: var(--color-accent-hl); }

.contact__meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 1.25rem 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 2rem;
  font-size: 0.78rem;
  color: var(--color-muted);
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* CONTACT SECTION */
.contact {
  background: var(--color-bg);
}

.contact__inner {
  max-width: 640px;
}

.contact__title {
  margin-bottom: 1.25rem;
}

.contact__sub {
  font-size: 1.05rem;
  color: var(--color-muted);
  margin-bottom: 2.25rem;
}

.contact__social {
  display: flex;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.contact__social a {
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-muted);
  transition: color var(--transition), border-color var(--transition), transform var(--transition), background var(--transition);
}

.contact__social a svg {
  width: 18px; height: 18px;
}

.contact__social a:hover {
  color: var(--color-ink);
  background: var(--color-accent-hl);
  border-color: var(--color-accent-hl);
  transform: translateY(-3px);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  position: relative;
  border-top: 4px solid var(--color-accent-hl);
  padding-block: 2.5rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.7);
  overflow: hidden;
}

.footer__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.footer__bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}

.footer__bg-overlay {
  position: absolute;
  inset: 0;
  background: rgba(28, 28, 28, 0.95);
}

.footer__inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: space-between;
}

.footer__logo {
  display: flex;
  align-items: center;
}

.footer-logo-img {
  height: 40px;
  filter: brightness(0) invert(1);
  opacity: 0.8;
}

/* ============================================================
   SCROLL REVEAL ANIMATION
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   PORTFOLIO SECTION
   ============================================================ */
.portfolio {
  background: var(--color-surface);
}

.portfolio__filters {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.filter-btn {
  font-family: var(--font-serif);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.6rem 1.25rem;
  border: 1.5px solid var(--color-border);
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.filter-btn:focus-visible {
  outline: 2px solid var(--color-accent-hl);
  outline-offset: 2px;
}

.filter-btn:hover, .filter-btn.active {
  background: var(--color-ink);
  color: var(--color-surface);
  border-color: var(--color-ink);
}

.filter-btn.active {
  background: var(--color-accent-hl);
  border-color: var(--color-accent-hl);
  color: var(--color-ink);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
  gap: 2.5rem;
  margin-top: 1rem;
}

.portfolio-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: opacity 0.4s ease, transform 0.4s ease, box-shadow var(--transition);
}

/* For filtering fade transition */
.portfolio-card.hide {
  display: none;
  opacity: 0;
  transform: scale(0.9);
}

.portfolio-card.show {
  display: block;
  opacity: 1;
  transform: scale(1);
}

.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.06);
}

.portfolio-card__img {
  position: relative;
  overflow: hidden;
  display: block;
}

.portfolio-card__img img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.portfolio-card:hover .portfolio-card__img img {
  transform: scale(1.05);
}

.portfolio-card__body {
  padding: 1.5rem;
}

.portfolio-card__tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-hl);
  margin-bottom: 0.5rem;
}

.portfolio-card__title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  color: var(--color-ink);
}

.portfolio-card__desc {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.portfolio-card__year {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-muted);
  margin-top: 0.5rem;
  text-align: left;
}

.portfolio-card__link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  border-bottom: 1.5px solid var(--color-ink);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
  text-decoration: none;
  margin-top: 1rem;
}

.portfolio-card__link:hover {
  color: var(--color-accent-hl);
  border-color: var(--color-accent-hl);
}

/* Project Hero Image — full-width showcase after description header */
.project-hero-image {
  width: 100%;
  margin-top: 2.5rem;
  margin-bottom: 2.5rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.10);
}

.project-hero-image img {
  width: 100%;
  height: auto;
  max-height: 500px;
  object-fit: cover;
  display: block;
}

.project-details-grid {
  display: grid;
  /* Metryka projektu poszerzona o 15% wzgledem ukladu 2fr 1fr:
     udzial prawej kolumny 33,33% -> 38,33% dostepnej szerokosci. */
  grid-template-columns: 1.609fr 1fr;
  gap: 4rem;
  align-items: start;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .project-details-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about__card {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-around;
    gap: 2rem 1rem;
  }

  .about__divider { display: none; }

  .strengths__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .services__list {
    grid-template-columns: 1fr;
  }

  .service-list-item:nth-child(odd) { border-right: none; }
}

@media (max-width: 680px) {
  .nav__links { display: none; }
  .nav__burger { display: flex; }

  :root { --space-xl: 5rem; }

  .hero__name { font-size: clamp(2.7rem, 12.6vw, 4.5rem); }

  .services__grid { grid-template-columns: 1fr; }

  .projects__grid { grid-template-columns: 1fr; }

  .about__card {
    flex-direction: column;
    align-items: center;
  }

  .contact__inner { max-width: 100%; }

  .contact__meta { gap: 1rem; }

  .footer__inner { flex-direction: column; text-align: center; gap: 0.75rem; }
}

/* ============================================================
   SKIP LINK (Accessibility)
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1.5rem;
  background: var(--color-accent-hl);
  color: var(--color-ink);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0.5rem;
}

/* ============================================================
   SCROLL TO TOP BUTTON
   ============================================================ */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 90;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-hl);
  color: var(--color-ink);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background 0.3s ease;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--color-accent-hl-dark);
  transform: translateY(-2px);
}

.scroll-top svg {
  width: 22px;
  height: 22px;
}

/* ============================================================
   FOOTER CLASSES (replaces inline styles)
   ============================================================ */
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
  gap: 3.5rem;
  margin-bottom: 4rem;
  text-align: left;
}

.footer__heading {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-accent-hl);
  padding-bottom: 0.5rem;
  display: inline-block;
  letter-spacing: 0.05em;
  color: #fff;
}

.footer__list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer__list li {
  margin-bottom: 0.5rem;
}

.footer__list--nav {
  line-height: 2;
}

.footer__list--nav li {
  margin-bottom: 0;
}

.footer__link {
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer__link:hover,
.footer__link:focus-visible {
  color: #fff;
}

.footer__info-text {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
}

.footer__meta-block {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.8;
}

.footer__social {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.footer__social-link {
  color: var(--color-muted);
  transition: color 0.3s ease;
  display: inline-block;
  width: 24px;
  height: 24px;
}

.footer__social-link:hover,
.footer__social-link:focus-visible {
  color: #fff;
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: var(--color-ink);
}

.breadcrumb__sep {
  color: var(--color-border);
  user-select: none;
}

.breadcrumb__current {
  color: var(--color-ink);
  font-weight: 600;
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-form {
  margin-top: 2.5rem;
}

.contact-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.contact-form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.contact-form__group--full {
  grid-column: 1 / -1;
}

.contact-form__label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.contact-form__label .required {
  color: #DC2626;
  margin-left: 0.15rem;
}

.contact-form__input,
.contact-form__textarea {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-ink);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.contact-form__input:focus,
.contact-form__textarea:focus {
}

.scroll-top svg {
  width: 22px;
  height: 22px;
}

/* ============================================================
   FOOTER CLASSES (replaces inline styles)
   ============================================================ */
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
  gap: 3.5rem;
  margin-bottom: 4rem;
  text-align: left;
}

.footer__heading {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-accent-hl);
  padding-bottom: 0.5rem;
  display: inline-block;
  letter-spacing: 0.05em;
  color: #fff;
}

.footer__list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer__list li {
  margin-bottom: 0.5rem;
}

.footer__list--nav {
  line-height: 2;
}

.footer__list--nav li {
  margin-bottom: 0;
}

.footer__link {
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer__link:hover,
.footer__link:focus-visible {
  color: #fff;
}

.footer__info-text {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
}

.footer__meta-block {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.8;
}

.footer__social {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.footer__social-link {
  color: var(--color-muted);
  transition: color 0.3s ease;
  display: inline-block;
  width: 24px;
  height: 24px;
}

.footer__social-link:hover,
.footer__social-link:focus-visible {
  color: #fff;
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: var(--color-ink);
}

.breadcrumb__sep {
  color: var(--color-border);
  user-select: none;
}

.breadcrumb__current {
  color: var(--color-ink);
  font-weight: 600;
}

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-form {
  margin-top: 2.5rem;
}

.contact-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.contact-form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.contact-form__group--full {
  grid-column: 1 / -1;
}

.contact-form__label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

.contact-form__label .required {
  color: #DC2626;
  margin-left: 0.15rem;
}

.contact-form__input,
.contact-form__textarea {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-ink);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.contact-form__input:focus,
.contact-form__textarea:focus {
  outline: none;
  border-color: var(--color-accent-hl);
  box-shadow: 0 0 0 3px rgba(230, 180, 29, 0.15);
}

.contact-form__textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-form__submit {
  margin-top: 1rem;
  grid-column: 1 / -1;
}

@media (max-width: 680px) {
  .contact-form__grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   REDUCED MOTION (Accessibility)
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .hero__scroll-line {
    animation: none;
  }
}

/* ============================================================
   Lightbox Gallery
   ============================================================ */
.lightbox-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.95);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.lightbox-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-content {
  position: relative;
  max-width: 90%;
  max-height: 90%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 3rem;
  cursor: pointer;
  z-index: 100000;
  line-height: 1;
  transition: color 0.3s ease;
}

.lightbox-close:hover {
  color: var(--color-primary);
}

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  font-size: 2rem;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.lightbox-prev:hover,
.lightbox-next:hover {
  background: var(--color-primary);
  color: #000;
}

.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

@media (max-width: 768px) {
  .lightbox-prev, .lightbox-next {
    width: 45px;
    height: 45px;
    font-size: 1.5rem;
  }
  .lightbox-prev { left: 10px; }
  .lightbox-next { right: 10px; }
  .lightbox-close { top: 10px; right: 15px; }
} 15px; }
}


/* --- Lista "Zakres prac" na podstronach realizacji ---------------------- */
/* Wyrownana do lewej krawedzi akapitow "Opis projektu"; globalna regula     */
/* `ul { list-style: none }` ukrywa domyslne punktory, dlatego rysujemy je   */
/* wlasnym pseudoelementem.                                                  */
.project-list {
  list-style: none;
  padding-left: 0;
  margin: 0 0 2rem;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-ink);
}

.project-list li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.5rem;
}

.project-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent-hl);
}