/* Corporate colors — from landing folder (Forest, Grass, Paper, Pink, Sky, Yellow, Clay, Text, White) */
:root {
  --forest: #147250;
  --forest-dark: #0f5c3e;
  --grass: #C5B400;
  --paper: #FAF7F0;
  --pink: #FFC0DD;
  --sky: #B3D6FF;
  --yellow: #FFC700;
  --clay: #D48052;
  --white: #FFFFFF;
  --text: #353535;
  --text-muted: #4a4a4a;
  --border: #e5e3df;
  --radius: 10px;
  --space: 1.5rem;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Montserrat', system-ui, sans-serif;
  font-weight: 500;
  line-height: 1.7;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container--wide {
  max-width: 960px;
}


/* Header — clean */
.header {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
  background: var(--white);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  display: block;
  line-height: 0;
}

.logo-full {
  height: 32px;
  width: auto;
  max-width: 180px;
  display: block;
  object-fit: contain;
  object-position: left center;
}

nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.35rem 0.5rem;
}

nav a:hover {
  color: var(--forest);
}

/* Active nav item — current section (index) or current page (projects) */
.nav-main a.nav-active {
  color: var(--forest);
  font-weight: 600;
  border-bottom: 2px solid var(--forest);
  padding-bottom: calc(0.35rem - 2px);
}

body[data-page="projects"] .nav-main a[href="projects.html"] {
  color: var(--forest);
  font-weight: 600;
  border-bottom: 2px solid var(--forest);
  padding-bottom: calc(0.35rem - 2px);
}

.nav-cta {
  background: var(--forest);
  color: var(--white) !important;
  padding: 0.45rem 0.9rem;
  border-radius: 6px;
  font-weight: 500;
  margin-left: 0.25rem;
}

.nav-cta:hover {
  background: var(--forest);
  filter: brightness(0.92);
  color: var(--white) !important;
}

/* Lang dropdown — one button, choice in list */
.lang-dropdown {
  position: relative;
  margin-left: 0.5rem;
}

.lang-dropdown__btn {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.4rem 0.6rem;
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}

.lang-dropdown__btn:hover {
  color: var(--forest);
  border-color: var(--forest);
}

.lang-dropdown__arrow {
  font-size: 0.55rem;
  opacity: 0.8;
}

.lang-dropdown__menu {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 0.2rem;
  min-width: 100%;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  list-style: none;
  padding: 0.25rem 0;
  z-index: 50;
}

.lang-dropdown__menu[hidden] {
  display: none;
}

.lang-dropdown__menu a {
  display: block;
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
}

.lang-dropdown__menu a:hover {
  background: var(--paper);
  color: var(--forest);
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -3rem;
  left: 1rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--forest);
  color: var(--white);
  text-decoration: none;
  font-size: 0.9rem;
  border-radius: 0 0 6px 6px;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

/* Hero — full-block photo with text on top */
.hero {
  position: relative;
  min-height: 52vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero--photo .hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  animation: nature-enter 1.2s ease-out forwards, nature-drift 18s ease-in-out 1.5s infinite alternate;
  opacity: 0;
  transform: scale(0.98);
}

.hero--photo .hero__bg {
  z-index: 0;
}

@keyframes nature-enter {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes nature-drift {
  0% { transform: scale(1) translate(0, 0); }
  100% { transform: scale(1.04) translate(-1%, -0.5%); }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(26, 26, 26, 0.35) 0%, rgba(26, 26, 26, 0.5) 100%);
  z-index: 1;
}

.hero__inner {
  position: relative;
  z-index: 2;
  padding: 4rem 1.5rem;
}

.hero--photo .hero__headline,
.hero--photo .hero-text {
  color: var(--white);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

.hero__headline {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.hero-text {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  background: var(--forest);
  color: var(--white);
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.95rem;
  transition: background 0.2s, transform 0.15s;
}

.btn:hover {
  background: #0d5a3a;
}

.btn--outline {
  background: transparent;
  color: var(--forest);
  border: 2px solid var(--forest);
  border-radius: var(--radius);
}

.btn--outline:hover {
  background: var(--forest);
  color: var(--white);
}

/* Welcome — WOW */
.welcome-block {
  padding: 4rem 0;
  text-align: center;
  background: var(--white);
}

.welcome-block__kicker {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--forest);
  margin-bottom: 0.75rem;
}

.welcome-block__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--text);
  line-height: 1.35;
  letter-spacing: -0.01em;
  max-width: 560px;
  margin: 0 auto 1.5rem;
}

.welcome-block__text {
  max-width: 540px;
  margin: 0 auto 1.5rem;
}

.welcome-block__text p {
  margin-bottom: 0.75rem;
  color: var(--text-muted);
  font-size: 1rem;
}

/* Section title */
.section-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  margin-bottom: 2rem;
  letter-spacing: -0.01em;
}

/* Blocks — corporate colors for section backgrounds */
.block {
  padding: 4rem 0;
}

.block--paper {
  background: var(--paper);
}

.block--white {
  background: var(--white);
}

/* Light sky tint */
.block--sky {
  background: rgba(179, 214, 255, 0.25);
}

/* Light grass/yellow-green tint */
.block--grass {
  background: rgba(197, 180, 0, 0.12);
}

/* Light clay tint (brand colour) */
.block--clay {
  background: rgba(212, 128, 82, 0.15);
}

/* Forest block — dark background, light text (e.g. contact/CTA) */
.block--forest {
  background: var(--forest);
  color: var(--white);
}

.block--forest .block__title,
.block--forest .block__content,
.block--forest p {
  color: rgba(255, 255, 255, 0.95);
}

.block--forest .block__content {
  color: rgba(255, 255, 255, 0.9);
}

.block--forest .contacts-list a {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.block--forest .contacts-list a:hover {
  color: var(--yellow);
}

.block--forest .cta-email a {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.block--forest .cta-email a:hover {
  color: var(--yellow);
}

.block--forest .cta-email {
  margin-top: 1rem;
  font-weight: 600;
}

.block--forest .cta-address {
  margin-top: 2.5rem;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
}

.block--forest p:last-of-type {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
}

.block__title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}

/* Mission & Vision — after Who we are */
.mission-vision {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 560px) {
  .mission-vision {
    grid-template-columns: 1fr 1fr;
  }
}

.mission-vision__label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--forest);
  margin-bottom: 0.35rem;
}

.mission-vision__text {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

.formats-text.block__content {
  margin: 0 auto;
}

.formats-text.block__content p {
  font-weight: 500;
}

.block__content {
  font-size: 1rem;
  color: var(--text-muted);
}

.block__content p {
  margin-bottom: 1.25rem;
}

.block__content p:last-child {
  margin-bottom: 0;
}

/* Cards — clean */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 0.5rem;
}

@media (min-width: 600px) {
  .cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--white);
  padding: 1.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, box-shadow 0.2s;
  scroll-margin-top: 5rem;
}
.card:hover {
  border-color: var(--forest);
  box-shadow: 0 4px 20px rgba(20, 114, 80, 0.08);
}

.card__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--forest);
  margin-bottom: 0.5rem;
}

.card__text {
  font-size: 0.9rem;
  color: var(--text-muted);
  flex-grow: 1;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.card__link {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--forest);
  text-decoration: none;
}

.card__link:hover {
  text-decoration: underline;
}

/* Projects page — 3 cards with image + text */
.block--projects {
  padding-top: 1.5rem;
}

.projects-page__inner {
  padding: 1.25rem 1.5rem 4rem;
}

.projects-intro {
  text-align: center;
  margin-bottom: 2rem;
}

.projects-intro .section-title {
  margin-bottom: 0.5rem;
}

.projects-intro__name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--forest);
  margin-bottom: 0.75rem;
}

.projects-intro__lead {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto;
}

.project-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 640px) {
  .project-cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.project-card:hover {
  border-color: var(--forest);
  box-shadow: 0 6px 24px rgba(20, 114, 80, 0.1);
}

.project-card__img {
  aspect-ratio: 4 / 3;
  background: var(--paper);
  overflow: hidden;
}

.project-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.project-card__body {
  padding: 1.25rem 1.25rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card__title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--forest);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.project-card__text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.project-card__link {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--forest);
  text-decoration: none;
}

.project-card__link:hover {
  text-decoration: underline;
}

/* Project detail page (single project) */
.project-detail {
  padding: 2rem 0 4rem;
}

.project-detail__inner {
  padding: 0 1.5rem;
  max-width: 640px;
}

.project-detail__parent {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--forest);
  margin-bottom: 0.5rem;
}

.project-detail__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.5rem;
  line-height: 1.3;
}

.project-detail__content {
  margin-bottom: 1.5rem;
}

.project-detail__actions {
  margin-bottom: 1.5rem;
}

.project-detail__content .project-detail__h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--forest);
  margin: 1.75rem 0 0.5rem;
}

.project-detail__content .project-detail__h2:first-of-type {
  margin-top: 0;
}

.project-detail__content ul,
.project-detail__content ol {
  margin: 0.5rem 0 1rem 1.25rem;
  padding-left: 1rem;
}

.project-detail__content li {
  margin-bottom: 0.35rem;
}

/* Language visibility — default PL when no JS; JS uses inline style to switch */
body:not([data-lang]) [data-lang="en"],
body:not([data-lang]) [data-lang="ru"] { display: none; }
body:not([data-lang]) [data-lang="pl"] { display: block; }
body:not([data-lang]) span[data-lang="pl"] { display: inline; }

/* Per-language visibility (fallback when JS has not set inline display) — PL, EN, RU */
body[data-lang="pl"] [data-lang="pl"] { display: block; }
body[data-lang="pl"] span[data-lang="pl"] { display: inline; }
body[data-lang="pl"] [data-lang="en"],
body[data-lang="pl"] [data-lang="ru"] { display: none; }
body[data-lang="en"] [data-lang="en"] { display: block; }
body[data-lang="en"] span[data-lang="en"] { display: inline; }
body[data-lang="en"] [data-lang="pl"],
body[data-lang="en"] [data-lang="ru"] { display: none; }
body[data-lang="ru"] [data-lang="ru"] { display: block; }
body[data-lang="ru"] span[data-lang="ru"] { display: inline; }
body[data-lang="ru"] [data-lang="pl"],
body[data-lang="ru"] [data-lang="en"] { display: none; }

/* Language switcher: all options always visible in dropdown */
.lang-dropdown__menu a[data-lang] { display: block !important; }

/* Legacy: language buttons always visible */
.lang-switch a[data-lang] { display: inline-block !important; }

/* CTA / Contact */
.cta {
  text-align: center;
}

.cta .block__title {
  margin-bottom: 0.5rem;
}

.cta p {
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.contacts-list {
  list-style: none;
  margin-top: 1rem;
}

.contacts-list li {
  margin-bottom: 0.6rem;
}

.contacts-list a {
  color: var(--forest);
  text-decoration: none;
  font-weight: 500;
}

.contacts-list a:hover {
  text-decoration: underline;
}

/* Footer — 4 columns + copyright (dark green) */
.footer {
  background: #2A604A;
  color: var(--white);
  font-size: 0.9rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 2.5rem 1.5rem 2rem;
}

@media (min-width: 640px) {
  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .footer__inner {
    grid-template-columns: 1.4fr 1fr 0.7fr 1fr;
    gap: 2.5rem;
  }
}

.footer__col {
  text-align: left;
}

.footer p,
.footer a {
  color: rgba(255, 255, 255, 0.95);
}

.footer a {
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
  color: var(--white);
}

.footer__logo {
  display: inline-block;
  margin-bottom: 0.75rem;
}

.footer__logo img {
  height: 28px;
  width: auto;
  display: block;
}

.footer__desc {
  font-size: 0.85rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  max-width: 280px;
}

.footer__heading {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  color: var(--white);
}

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: 0.35rem;
}

.footer__links a {
  font-size: 0.9rem;
}

.footer__icons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.footer__icons a {
  font-size: 0.9rem;
}

.footer__item {
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}

.footer__address {
  font-size: 0.85rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.9);
  margin-top: 0.25rem;
}

.footer__bottom {
  border-top: 1px solid rgba(59, 125, 96, 0.9);
  padding: 1rem 1.5rem;
  text-align: center;
}

.footer__bottom p {
  margin: 0;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.9);
}