/* =========================================
   BIO ASSETS – MAIN STYLESHEET
   ========================================= */

/* ── CUSTOM PROPERTIES ─────────────────── */
:root {
  /* Palette */
  --clr-primary:       #1a6b3c;
  --clr-primary-dark:  #134f2c;
  --clr-primary-light: #2a8a50;
  --clr-accent:        #4caf77;
  --clr-accent-soft:   #e6f4ec;

  --clr-neutral-900:   #0f1a14;
  --clr-neutral-800:   #1c2e22;
  --clr-neutral-700:   #2d4535;
  --clr-neutral-600:   #4a6857;
  --clr-neutral-400:   #8aab97;
  --clr-neutral-200:   #d8ead0;
  --clr-neutral-100:   #f2f8f4;
  --clr-white:         #ffffff;

  /* Typography */
  --font-sans:    'Inter', system-ui, sans-serif;
  --font-serif:   'Playfair Display', Georgia, serif;

  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;

  /* Spacing */
  --space-1:   0.25rem;
  --space-2:   0.5rem;
  --space-3:   0.75rem;
  --space-4:   1rem;
  --space-5:   1.25rem;
  --space-6:   1.5rem;
  --space-8:   2rem;
  --space-10:  2.5rem;
  --space-12:  3rem;
  --space-16:  4rem;
  --space-20:  5rem;
  --space-24:  6rem;
  --space-32:  8rem;

  /* Effects */
  --radius-sm:  0.375rem;
  --radius-md:  0.75rem;
  --radius-lg:  1.25rem;
  --radius-xl:  2rem;
  --radius-full: 9999px;

  --shadow-sm:  0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md:  0 4px 16px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-lg:  0 10px 40px rgba(0, 0, 0, 0.12), 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-xl:  0 20px 60px rgba(0, 0, 0, 0.15);

  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --container-max: 1200px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--clr-neutral-800);
  background-color: var(--clr-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

address {
  font-style: normal;
}

/* ── UTILITY ───────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.section {
  padding-block: var(--space-24);
}

.section--alt {
  background-color: var(--clr-neutral-100);
}

.section__header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: var(--space-16);
}

.section__eyebrow {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: var(--space-3);
}

.section__title {
  font-family: var(--font-serif);
  font-size: clamp(var(--text-3xl), 4vw, var(--text-4xl));
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-neutral-900);
  margin-bottom: var(--space-4);
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--clr-neutral-600);
  line-height: 1.7;
}

/* ── BUTTONS ───────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-full);
  font-size: var(--text-base);
  font-weight: 600;
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn--primary {
  background-color: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background-color: var(--clr-primary-dark);
  border-color: var(--clr-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  color: var(--clr-white);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: var(--clr-white);
}

.btn--full {
  width: 100%;
  justify-content: center;
}

/* ── HEADER / NAVIGATION ───────────────── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: var(--clr-white);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition), box-shadow var(--transition);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-neutral-800);
  z-index: 101;
}

.nav__logo-icon {
  font-size: 1.5rem;
}

.nav__logo-img {
  height: 40px;
  width: auto;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav__link {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--clr-neutral-700);
  transition: color var(--transition), background-color var(--transition);
}

.nav__link:hover {
  color: var(--clr-primary);
  background-color: var(--clr-accent-soft);
}

.nav__link--cta {
  background-color: var(--clr-primary);
  color: var(--clr-white) !important;
  padding: var(--space-2) var(--space-6);
  border-radius: var(--radius-full);
}

.nav__link--cta:hover {
  background-color: var(--clr-primary-dark) !important;
}

/* Active link */
.nav__link.active {
  color: var(--clr-primary);
  font-weight: 600;
}

/* Hamburger toggle */
.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  z-index: 101;
  color: var(--clr-neutral-800);
}

.nav__hamburger,
.nav__hamburger::before,
.nav__hamburger::after {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav__hamburger {
  position: relative;
}

.nav__hamburger::before,
.nav__hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.nav__hamburger::before { top: -7px; }
.nav__hamburger::after  { top:  7px; }

.nav__toggle[aria-expanded="true"] .nav__hamburger {
  background: transparent;
}

.nav__toggle[aria-expanded="true"] .nav__hamburger::before {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle[aria-expanded="true"] .nav__hamburger::after {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ── LANGUAGE SWITCHER ─────────────────── */
.nav__lang-item {
  list-style: none;
  display: flex;
  align-items: center;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: var(--space-2);
}

.lang-switcher__btn {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--clr-neutral-500);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  line-height: 1;
  transition: color var(--transition), background-color var(--transition);
}

.lang-switcher__btn:hover {
  color: var(--clr-primary);
  background-color: var(--clr-accent-soft);
}

.lang-switcher__btn.active {
  color: var(--clr-primary);
  font-weight: 700;
}

.lang-switcher__sep {
  color: var(--clr-neutral-300);
  font-size: var(--text-xs);
  user-select: none;
  pointer-events: none;
  line-height: 1;
}

/* ── HERO ──────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Slides */
.hero__slides {
  position: absolute;
  inset: 0;
}

.hero__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 1s ease;
  will-change: opacity;
}

.hero__slide--active {
  opacity: 1;
}

/* Prev / Next arrows */
.hero__carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--clr-white);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
  padding: 0;
}

.hero__carousel-btn:hover {
  background: rgba(0, 0, 0, 0.55);
  transform: translateY(-50%) scale(1.08);
}

.hero__carousel-btn--prev { left: var(--space-6); }
.hero__carousel-btn--next { right: var(--space-6); }

/* Dot indicators */
.hero__dots {
  position: absolute;
  bottom: calc(var(--space-8) + 64px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: var(--space-2);
}

.hero__dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.45);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background var(--transition), transform var(--transition);
}

.hero__dot:hover {
  background: rgba(255, 255, 255, 0.75);
}

.hero__dot--active {
  background: var(--clr-accent);
  transform: scale(1.3);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    135deg,
    rgba(10, 40, 20, 0.82) 0%,
    rgba(20, 70, 40, 0.65) 60%,
    rgba(10, 30, 15, 0.75) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--clr-white);
  padding-block: var(--space-32);
  animation: fadeUp 0.9s ease both;
}

.hero__eyebrow {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--space-4);
  animation: fadeUp 0.9s 0.1s ease both;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(var(--text-4xl), 7vw, var(--text-6xl));
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  animation: fadeUp 0.9s 0.2s ease both;
}

.hero__title--accent {
  color: var(--clr-accent);
}

.hero__subtitle {
  max-width: 620px;
  margin-inline: auto;
  font-size: clamp(var(--text-base), 2vw, var(--text-xl));
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-10);
  animation: fadeUp 0.9s 0.3s ease both;
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeUp 0.9s 0.4s ease both;
}

/* Scroll hint */
.hero__scroll-hint {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fadeIn 1.5s 1s ease both;
}

.hero__scroll-arrow {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.4);
  animation: scrollPulse 2s ease infinite;
  transform-origin: top;
}

/* ── STATS ─────────────────────────────── */
.stats {
  background-color: var(--clr-primary);
  padding-block: var(--space-12);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.stats__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: var(--clr-white);
  gap: var(--space-2);
}

.stats__number {
  font-family: var(--font-serif);
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1;
  color: var(--clr-accent);
}

.stats__label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 0.04em;
}

/* ── ABOUT ─────────────────────────────── */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about__visual {
  position: relative;
}

.about__img-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/5;
  box-shadow: var(--shadow-xl);
}

.about__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.about__img-wrap:hover .about__img {
  transform: scale(1.03);
}

.about__badge {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-primary);
  box-shadow: var(--shadow-lg);
}

.about__badge-icon {
  font-size: 1.5rem;
}

.about__content .section__eyebrow {
  text-align: left;
}

.about__content .section__title {
  text-align: left;
}

.about__text {
  color: var(--clr-neutral-600);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}

.about__values {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.about__value {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.about__value-icon {
  font-size: 1.75rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.about__value strong {
  display: block;
  font-weight: 600;
  color: var(--clr-neutral-900);
  margin-bottom: var(--space-1);
}

.about__value p {
  font-size: var(--text-sm);
  color: var(--clr-neutral-600);
  line-height: 1.6;
}

/* ── SERVICES ──────────────────────────── */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.service-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-neutral-200);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--clr-accent);
}

.service-card__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
  display: block;
}

.service-card__title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-neutral-900);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.service-card__text {
  font-size: var(--text-sm);
  color: var(--clr-neutral-600);
  line-height: 1.7;
  margin-bottom: var(--space-6);
  flex: 1;
}

.service-card {
  display: flex;
  flex-direction: column;
}

.service-card__link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-primary);
  margin-top: auto;
  transition: color var(--transition), gap var(--transition);
}

.service-card__link:hover {
  color: var(--clr-primary-dark);
}

/* ── FOREST BIOECONOMY ─────────────────── */
.bioeconomy__header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.bioeconomy__banner {
  display: block;
  margin-inline: auto;
  margin-bottom: var(--space-6);
  max-width: 100%;
  height: auto;
}

.bioeconomy__videos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.bioeconomy__video-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.bioeconomy__video {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  background: var(--clr-neutral-900);
  display: block;
  box-shadow: var(--shadow-lg);
}

.bioeconomy__video-caption {
  font-size: var(--text-sm);
  color: var(--clr-neutral-500);
  text-align: center;
  font-style: italic;
}

/* ── PROJECTS ──────────────────────────── */
.projects__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto;
  gap: var(--space-6);
}

.project-card--featured {
  grid-column: 1 / 2;
  grid-row: 1 / 3;
}

.project-card {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--clr-neutral-200);
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}

.project-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.project-card__img-wrap {
  overflow: hidden;
  flex-shrink: 0;
}

.project-card--featured .project-card__img-wrap {
  height: 280px;
}

.project-card:not(.project-card--featured) .project-card__img-wrap {
  height: 180px;
}

.project-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.project-card__body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-card__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: var(--clr-accent-soft);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.project-card__title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--clr-neutral-900);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.project-card__text {
  font-size: var(--text-sm);
  color: var(--clr-neutral-600);
  line-height: 1.7;
  margin-bottom: var(--space-4);
  flex: 1;
}

.project-card__meta {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--clr-neutral-400);
  font-weight: 500;
}

/* ── PARTNERSHIPS ──────────────────────── */
.partnerships__features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-16);
}

.partnership-feature {
  text-align: center;
  padding: var(--space-8);
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--clr-neutral-200);
  transition: transform var(--transition), box-shadow var(--transition);
}

.partnership-feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.partnership-feature__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-4);
  display: block;
}

.partnership-feature h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--clr-neutral-900);
  margin-bottom: var(--space-3);
}

.partnership-feature p {
  font-size: var(--text-sm);
  color: var(--clr-neutral-600);
  line-height: 1.7;
}

.partnerships__cta {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.partnerships__cta p {
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--clr-neutral-700);
}

/* ── CONTACT ───────────────────────────── */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--space-16);
  align-items: start;
}

.contact__info .section__eyebrow,
.contact__info .section__title {
  text-align: left;
}

.contact__text {
  color: var(--clr-neutral-600);
  line-height: 1.8;
  margin-bottom: var(--space-8);
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact__detail {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact__detail-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.contact__detail strong {
  display: block;
  font-weight: 600;
  color: var(--clr-neutral-900);
  margin-bottom: var(--space-1);
}

.contact__detail p {
  font-size: var(--text-sm);
  color: var(--clr-neutral-600);
  line-height: 1.6;
}

.contact__detail a:hover {
  color: var(--clr-primary);
}

/* ── CONTACT FORM ──────────────────────── */
.contact__form {
  background: var(--clr-white);
  border: 1px solid var(--clr-neutral-200);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-neutral-700);
}

.form__label span {
  color: var(--clr-primary);
}

.form__input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--clr-neutral-200);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--clr-neutral-800);
  background: var(--clr-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form__input:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(26, 107, 60, 0.12);
}

.form__input.error {
  border-color: #e53e3e;
}

.form__select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234a6857' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

.form__error {
  font-size: var(--text-xs);
  color: #e53e3e;
  min-height: 1rem;
}

.form__note {
  font-size: var(--text-xs);
  color: var(--clr-neutral-400);
  text-align: center;
}

/* ── FOOTER ────────────────────────────── */
.footer {
  background-color: var(--clr-neutral-900);
  color: rgba(255, 255, 255, 0.75);
  padding-top: var(--space-20);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer .nav__logo {
  color: var(--clr-white);
  margin-bottom: var(--space-4);
}

.footer__tagline {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-4);
}

.footer__copy {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
}

.footer__heading {
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-white);
  margin-bottom: var(--space-4);
}

.footer__nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__nav a {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

.footer__nav a:hover {
  color: var(--clr-accent);
}

.footer__contact address p {
  font-size: var(--text-sm);
  line-height: 1.8;
}

.footer__contact a:hover {
  color: var(--clr-accent);
}

.footer__bottom {
  padding-block: var(--space-6);
  text-align: center;
}

.footer__bottom p {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.3);
}

/* ── ANIMATIONS ────────────────────────── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 0.6; }
  50%       { transform: scaleY(0.5); opacity: 1; }
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ── RESPONSIVE ────────────────────────── */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .partnerships__features {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .about__grid {
    gap: var(--space-12);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  /* Mobile nav */
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    background: var(--clr-white);
    flex-direction: column;
    align-items: flex-start;
    padding: calc(var(--header-height) + var(--space-8)) var(--space-6) var(--space-8);
    gap: var(--space-2);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 100;
  }

  .nav__menu.open {
    transform: translateX(0);
  }

  .nav__link {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    color: var(--clr-neutral-700) !important;
    font-size: var(--text-base);
  }

  .nav__link:hover {
    color: var(--clr-primary) !important;
    background-color: var(--clr-accent-soft);
  }

  .nav__link--cta {
    margin-top: var(--space-4);
    text-align: center;
  }

  /* Mobile language switcher (inside sidebar) */
  .nav__lang-item {
    width: 100%;
    margin-top: var(--space-2);
    padding-top: var(--space-4);
    border-top: 1px solid var(--clr-neutral-100);
  }

  .lang-switcher {
    margin-left: 0;
  }

  .lang-switcher__btn {
    color: var(--clr-neutral-600);
    font-size: var(--text-base);
    padding: var(--space-2) var(--space-3);
  }

  .lang-switcher__btn:hover,
  .lang-switcher__btn.active {
    color: var(--clr-primary);
    background-color: var(--clr-accent-soft);
  }

  .lang-switcher__sep {
    color: var(--clr-neutral-300);
  }

  /* Mobile overlay */
  .nav__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 99;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
  }

  .nav__overlay.open {
    opacity: 1;
    pointer-events: auto;
  }

  /* Sections */
  .section {
    padding-block: var(--space-16);
  }

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

  .about__badge {
    bottom: -1rem;
    right: 0;
  }

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

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

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

  .project-card--featured {
    grid-column: auto;
    grid-row: auto;
  }

  .project-card--featured .project-card__img-wrap {
    height: 200px;
  }

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

  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

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

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

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .hero {
    /* carousel slides handle backgrounds */
  }

  .hero__carousel-btn {
    width: 36px;
    height: 36px;
    font-size: 1.3rem;
  }

  .hero__carousel-btn--prev { left: var(--space-3); }
  .hero__carousel-btn--next { right: var(--space-3); }
}

@media (max-width: 480px) {
  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .section__title {
    font-size: var(--text-2xl);
  }
}

/* ── FOCUS STYLES ──────────────────────── */
:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 3px;
}

/* ── PRINT ─────────────────────────────── */
@media print {
  .header,
  .hero__scroll-hint,
  .contact__form {
    display: none;
  }

  .hero {
    background-color: var(--clr-primary);
    min-height: auto;
    padding-block: var(--space-12);
  }

  .hero__slides,
  .hero__carousel-btn,
  .hero__dots {
    display: none;
  }
}