/* ============================================
   CSS VARIABLES
============================================ */
:root {
  --green-50:   #f0faf4;
  --green-100:  #d6f0e0;
  --green-200:  #aaddc0;
  --green-600:  #22804a;
  --green-700:  #1a6339;
  --green-900:  #0d3320;

  --white:      #ffffff;
  --gray-50:    #f8f9fa;
  --gray-100:   #f1f3f5;
  --gray-200:   #e9ecef;
  --gray-300:   #dee2e6;
  --gray-500:   #adb5bd;
  --gray-600:   #868e96;
  --gray-700:   #495057;
  --gray-800:   #343a40;
  --gray-900:   #212529;

  --font-body:    'Manrope', sans-serif;
  --font-display: 'Playfair Display', serif;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;

  --shadow-sm:  0 2px 8px rgba(0,0,0,.06);
  --shadow-md:  0 6px 24px rgba(0,0,0,.08);
  --shadow-lg:  0 16px 48px rgba(0,0,0,.12);

  --ease:       cubic-bezier(.4, 0, .2, 1);
  --transition: .22s var(--ease);
}

/* ============================================
   RESET
============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img  { display: block; max-width: 100%; height: auto; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }
button { font-family: var(--font-body); cursor: pointer; border: none; background: none; }

/* ============================================
   LAYOUT
============================================ */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem);
}

.section { padding: clamp(3.5rem, 7vw, 6rem) 0; }

/* ============================================
   TYPOGRAPHY HELPERS
============================================ */
.section-tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--green-600);
  margin-bottom: .75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--gray-600);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

/* ============================================
   BUTTONS
============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 1.8rem;
  border-radius: var(--radius-sm);
  font-size: .93rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: var(--green-600);
  color: var(--white);
  border-color: var(--green-600);
}
.btn--primary:hover {
  background: var(--green-700);
  border-color: var(--green-700);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(34,128,74,.3);
}

.btn--outline {
  background: transparent;
  color: var(--green-600);
  border-color: var(--green-600);
}
.btn--outline:hover {
  background: var(--green-50);
  transform: translateY(-2px);
}

.btn--outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.7);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,.12);
  border-color: var(--white);
}

/* ============================================
   IMAGE PLACEHOLDER (remove when adding real photos)
============================================ */
.img-placeholder {
  display: none;
}
.img-placeholder {
  width: 100%;
  height: 100%;
  min-height: 340px;
  background: var(--gray-100);
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  color: var(--gray-500);
  font-size: .9rem;
}
.img-placeholder--cert {
  min-height: 240px;
  font-size: 2rem;
}
.img-placeholder small { font-size: .75rem; color: var(--gray-400); }

/* ============================================
   HEADER
============================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  border-bottom-color: var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  height: 72px;
  gap: 1.5rem;
}

/* Logo */
.header__logo { display: flex; align-items: center; flex-shrink: 0; }
.header__logo-img { height: 42px; width: auto; }

/* Desktop Nav */
.header__nav {
  display: flex;
  align-items: center;
  gap: .2rem;
  flex: 1;
}

.header__nav-link {
  padding: .4rem .85rem;
  border-radius: var(--radius-sm);
  font-size: .87rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.header__nav-link:hover,
.header__nav-link.active {
  color: var(--green-600);
  background: var(--green-50);
}

/* Controls */
.header__controls {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-left: auto;
  flex-shrink: 0;
}

/* Language Switcher */
.lang-switcher {
  position: relative;
}

.lang-switcher__btn {
  padding: .35rem .75rem;
  border-radius: var(--radius-sm);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--gray-700);
  background: var(--gray-100);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: .3rem;
}

.lang-switcher__btn.active,
.lang-switcher:hover .lang-switcher__btn {
  color: var(--green-600);
  background: var(--green-50);
}
.lang-switcher:hover .lang-switcher__btn::after {
  transform: rotate(180deg);
}

.lang-switcher__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all var(--transition);
  min-width: 80px;
  z-index: 100;
}

.lang-switcher:hover .lang-switcher__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-switcher__dropdown a {
  display: block;
  padding: .55rem 1rem;
  font-size: .82rem;
  font-weight: 600;
  color: var(--gray-700);
  transition: all var(--transition);
}
.lang-switcher__dropdown a:hover {
  background: var(--green-50);
  color: var(--green-600);
}

/* Site 2 button */
.btn-site2 {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .55rem 1.2rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 700;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  background: var(--green-50);
  border-left: 3px solid var(--green-600);
}

.btn-site2__text {
  display: flex;
}

.btn-site2__dark {
  color: var(--gray-900);
}

.btn-site2__accent {
  color: var(--green-600);
}

.btn-site2__arrow {
  opacity: 0.7;
  transition: all .3s var(--transition);
  transform: translateX(0);
  color: var(--green-600);
}

.btn-site2:hover {
  background: var(--green-100);
}

.btn-site2:hover .btn-site2__arrow {
  opacity: 1;
  transform: translateX(3px);
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  padding: 5px;
  border-radius: var(--radius-sm);
}
.burger span {
  display: block;
  height: 2px;
  background: var(--gray-800);
  border-radius: 2px;
  transition: all .3s var(--ease);
  transform-origin: center;
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: 72px; left: 0; right: 0;
  background: var(--white);
  z-index: 999;
  border-bottom: 1px solid var(--gray-200);
  transform: translateY(-110%);
  opacity: 0;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
  pointer-events: none;
}
.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}
.mobile-menu__nav { display: flex; flex-direction: column; }
.mobile-menu__link {
  padding: 1rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100);
  transition: color var(--transition), background var(--transition);
}
.mobile-menu__link:hover,
.mobile-menu__link.active { color: var(--green-600); background: var(--green-50); }
.mobile-menu__link--site2 {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-weight: 600;
  background: var(--green-50);
  color: var(--green-700);
  border-left: 3px solid var(--green-600);
  margin: .5rem 0;
}

.mobile-menu__site2-text {
  display: flex;
}

.mobile-menu__site2-dark {
  color: var(--gray-900);
}

.mobile-menu__site2-accent {
  color: var(--green-600);
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.3);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}
.mobile-overlay.show { opacity: 1; visibility: visible; }

/* ============================================
   HERO
============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(72px + 3rem) 0 4rem;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: url('images/hero-bg.jpg');
  background-size: cover;
  background-position: center center;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(10, 40, 20, .35) 0%,
    rgba(10, 40, 20, .15) 55%,
    rgba(10, 40, 20, 0) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin-right: auto;
  margin-left: 0;
}

.hero__tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--green-200);
  margin-bottom: 1rem;
  animation: fadeUp .6s var(--ease) .1s both;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 1.25rem;
  animation: fadeUp .6s var(--ease) .2s both;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: rgba(255,255,255,.82);
  line-height: 1.7;
  margin-bottom: 2.2rem;
  max-width: 500px;
  animation: fadeUp .6s var(--ease) .3s both;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  animation: fadeUp .6s var(--ease) .4s both;
}

/* ============================================
   THREE INFO CARDS
============================================ */
.cards-section {
  padding: clamp(2.5rem, 5vw, 4rem) 0;
  background: var(--white);
  position: relative;
  z-index: 10;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.info-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.info-card--accent {
  background: var(--green-600);
  border-color: var(--green-600);
}
.info-card--accent .info-card__title { color: var(--white); }
.info-card--accent .info-card__text  { color: rgba(255,255,255,.82); }

.info-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.25rem;
}
.info-card__icon svg { width: 48px; height: 48px; }

.info-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: .6rem;
}

.info-card__text {
  font-size: .9rem;
  color: var(--gray-600);
  line-height: 1.65;
}

/* ============================================
   ABOUT SECTION
============================================ */
.about-section { background: var(--gray-50); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 450px;
  order: 1;
}

.about-content {
  order: 2;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius-lg);
}

.about-text {
  font-size: .97rem;
  color: var(--gray-600);
  line-height: 1.75;
  margin-bottom: 1rem;
}

.about-stats {
  display: flex;
  gap: 2rem;
  margin: 1.75rem 0 2rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.about-stat { display: flex; flex-direction: column; gap: .2rem; }
.about-stat__val {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--green-600);
  line-height: 1;
}
.about-stat__lbl { font-size: .8rem; color: var(--gray-500); font-weight: 500; }

/* ============================================
   COMPANY SECTION
============================================ */
.company-section { background: var(--white); }

.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.company-image {
  order: 1;
}

.company-content {
  order: -1;
}

.company-text {
  font-size: .97rem;
  color: var(--gray-600);
  line-height: 1.75;
  margin-bottom: 1rem;
}

.company-list {
  margin: 1.5rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: .6rem;
}
.company-list li {
  font-size: .93rem;
  color: var(--gray-700);
  padding-left: 1.4rem;
  position: relative;
}
.company-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .55rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green-600);
}

.company-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.company-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* ============================================
   ACCREDITATION / CERTS SLIDER
============================================ */
.accreditation-section { background: var(--gray-50); }

.certs-slider-wrap {
  position: relative;
  overflow: hidden;
  margin: 0 -1rem;
  padding: 0 1rem;
}

.certs-slider {
  display: flex;
  gap: 1.5rem;
  transition: transform .4s var(--ease);
  cursor: grab;
  user-select: none;
}
.certs-slider:active { cursor: grabbing; }

.cert-card {
  flex: 0 0 calc(25% - 1.125rem);
  min-width: 220px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.cert-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.cert-card__img {
  height: 320px;
  overflow: hidden;
  cursor: pointer;
}
.cert-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s var(--ease);
}
.cert-card:hover .cert-card__img img { transform: scale(1.04); }

.cert-card__label {
  padding: 1rem 1.25rem;
  font-size: .87rem;
  font-weight: 600;
  color: var(--gray-700);
  text-align: center;
}

/* Slider buttons */
.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  z-index: 10;
}
.slider-btn svg { width: 18px; height: 18px; color: var(--gray-700); }
.slider-btn:hover {
  background: var(--green-600);
  border-color: var(--green-600);
}
.slider-btn:hover svg { color: var(--white); }
.slider-btn:disabled { opacity: .35; pointer-events: none; }

.slider-btn--prev { left: 0; }
.slider-btn--next { right: 0; }

/* Dots */
.slider-dots {
  display: flex;
  justify-content: center;
  gap: .5rem;
  margin-top: 1.5rem;
}
.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gray-300);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}
.slider-dot.active {
  background: var(--green-600);
  width: 22px;
  border-radius: 4px;
}

/* ============================================
   MAP
============================================ */
.map-section { padding-bottom: 0; }
.map-section .container { padding-bottom: 2rem; }

.map-wrap {
  width: 100%;
  height: clamp(300px, 45vw, 500px);
  margin-top: 2rem;
  overflow: hidden;
  border-top: 3px solid var(--green-600);
}

.map-iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* ============================================
   FOOTER
============================================ */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding-top: 3.5rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer__logo { height: 36px; width: auto; opacity: .85; margin-bottom: 1rem; }

.footer__tagline { font-size: .9rem; color: var(--gray-500); line-height: 1.6; max-width: 280px; }

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: .65rem;
}
.footer__nav a {
  font-size: .9rem;
  color: var(--gray-500);
  transition: color var(--transition);
}
.footer__nav a:hover { color: var(--green-200); }

.footer__contacts {
  display: flex;
  flex-direction: column;
  gap: .65rem;
}
.footer__contacts p { font-size: .88rem; color: var(--gray-500); }

.footer__bottom {
  padding: 1.25rem 0;
  font-size: .8rem;
  color: var(--gray-600);
}

/* ============================================
   ANIMATIONS
============================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   RESPONSIVE — TABLET (max 1024px)
============================================ */
@media (max-width: 1024px) {
  .header__nav-link { padding: .4rem .65rem; font-size: .83rem; }
  .cards-grid { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .cert-card  { flex: 0 0 calc(33.333% - 1rem); }
}

/* ============================================
   RESPONSIVE — MOBILE (max 900px)
============================================ */
@media (max-width: 900px) {
  /* Header */
  .header__nav  { display: none; }
  .btn-site2    { display: none; }
  .burger       { display: flex; }

  /* Hero */
  .hero { min-height: 80vh; padding-top: calc(72px + 2.5rem); }
  .hero__title { font-size: clamp(2rem, 7vw, 3rem); }

  /* Cards — stack to 1 col */
  .cards-grid   { grid-template-columns: 1fr; gap: 1rem; }
  .cards-section { margin-top: 0; }

  /* About & Company — stack */
  .about-grid   { grid-template-columns: 1fr; }
  .company-grid { grid-template-columns: 1fr; }
  .company-image { order: -1; }

  /* Certs */
  .cert-card { flex: 0 0 calc(50% - .75rem); }

  /* Footer */
  .footer__inner { grid-template-columns: 1fr; gap: 2rem; }
}

/* ============================================
   RESPONSIVE — SMALL MOBILE (max 480px)
============================================ */
@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .about-stats { gap: 1.25rem; }
  .about-stat__val { font-size: 1.5rem; }
  .cert-card { flex: 0 0 calc(80vw); }
  .slider-btn { display: none; }
}
/* ============================================
   MODAL GALLERY (LIGHTBOX)
============================================ */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .95);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  transition: opacity .3s var(--ease);
}

.modal.active {
  display: flex;
  opacity: 1;
}

.modal__content {
  position: relative;
  max-width: 90%;
  max-height: 90vh;
  width: auto;
  height: auto;
}

.modal__img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
}

.modal__close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, .2);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  line-height: 1;
}

.modal__close:hover {
  background: rgba(255, 255, 255, .3);
}

.modal__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  pointer-events: none;
}

.modal__btn {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, .2);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  pointer-events: all;
}

.modal__btn:hover {
  background: rgba(255, 255, 255, .3);
}

.modal__btn:disabled {
  opacity: .3;
  cursor: not-allowed;
}