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

:root {
  --clr-primary: #0b8db5;
  --clr-primary-dark: #065a76;
  --clr-primary-light: #4ec5e0;
  --clr-accent: #34c9eb;
  --clr-accent-dark: #0fafd4;
  --clr-bg: #f5f7fa;
  --clr-bg-alt: #eef1f6;
  --clr-white: #ffffff;
  --clr-text: #2c3e50;
  --clr-text-muted: #6b7c93;
  --clr-border: #dde3ed;
  --radius: 8px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,.08);
  --shadow-md: 0 6px 24px rgba(0,0,0,.12);
  --transition: .25s ease;
  --max-w: 1180px;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: 'Exo 2', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-weight: 400;
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.65;
}

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

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

/* ===== UTILITY ===== */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 20px;
}

.section-title {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: 2rem;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 52px;
  height: 3px;
  background: var(--clr-accent);
  margin-top: 10px;
}

.section-title.center {
  text-align: center;
}

.section-title.center::after {
  margin-inline: auto;
}

.section-title.light {
  color: var(--clr-white);
}

.section-title.light::after {
  background: var(--clr-white);
}

/* ===== HEADER ===== */
.header {
  background: var(--clr-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,.3);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--clr-white);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: .5px;
  text-transform: uppercase;
  flex-shrink: 0;
}

.header__logo-mark {
  background: var(--clr-accent);
  color: var(--clr-white);
  font-size: .75rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

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

.header__nav a {
  color: rgba(255,255,255,.8);
  font-size: .9rem;
  font-weight: 500;
  transition: color var(--transition);
  white-space: nowrap;
}

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

.header__cta {
  background: var(--clr-accent);
  color: var(--clr-white) !important;
  padding: 8px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  transition: background var(--transition);
}

.header__cta:hover {
  background: var(--clr-accent-dark) !important;
  color: var(--clr-white) !important;
}

.header__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.header__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, var(--clr-primary-dark) 0%, var(--clr-primary) 55%, var(--clr-primary-light) 100%);
  padding: 80px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 30%, rgba(0, 15, 30, 0.72) 100%);
  pointer-events: none;
  z-index: 0;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero__eyebrow {
  display: inline-block;
  background: var(--clr-accent);
  color: var(--clr-white);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 4px;
  margin-bottom: 1.2rem;
}

.hero__title {
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--clr-white);
  line-height: 1.2;
  margin-bottom: 1.2rem;
}

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

.hero__subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,.75);
  margin-bottom: .8rem;
  font-weight: 500;
}

.hero__body {
  font-size: 1rem;
  color: rgba(255,255,255,.65);
  margin-bottom: 2.2rem;
  max-width: 560px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--clr-accent-dark);
  color: var(--clr-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(11,141,181,.4);
}

.btn-outline {
  background: transparent;
  color: var(--clr-white);
  border-color: rgba(255,255,255,.4);
}

.btn-outline:hover {
  border-color: var(--clr-white);
  background: rgba(255,255,255,.08);
  color: var(--clr-white);
}

/* ===== COOPERATION BANNER ===== */
.coop-banner {
  background: linear-gradient(90deg, var(--clr-primary) 0%, var(--clr-primary-light) 100%);
  padding: 40px 0;
}

.coop-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.coop-banner__text h2 {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: .4rem;
}

.coop-banner__text p {
  font-size: .95rem;
  color: rgba(255,255,255,.9);
  max-width: 620px;
}

.coop-banner__email {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--clr-white);
  color: var(--clr-accent-dark);
  font-weight: 700;
  font-size: 1rem;
  padding: 12px 24px;
  border-radius: var(--radius);
  flex-shrink: 0;
  transition: var(--transition);
}

.coop-banner__email:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
  color: var(--clr-accent-dark);
}

/* ===== SERVICES ===== */
.services {
  padding: 80px 0;
  background: var(--clr-white);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 2rem 1.6rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--clr-accent);
  transform: scaleX(0);
  transition: var(--transition);
  transform-origin: left;
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: transparent;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card__icon {
  width: 52px;
  height: 52px;
  background: var(--clr-primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
}

.service-card__icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: var(--clr-accent);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: .7rem;
}

.service-card__desc {
  font-size: .9rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}

/* ===== ADVANTAGES ===== */
.advantages {
  background: var(--clr-primary);
  padding: 80px 0;
}

.advantages__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 1rem;
}

.adv-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.adv-item__icon {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.adv-item__icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--clr-accent);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.adv-item__title {
  font-size: .95rem;
  font-weight: 600;
  color: var(--clr-white);
  padding-top: 10px;
}

/* ===== NEWS ===== */
.news {
  padding: 80px 0;
  background: var(--clr-bg);
}

.news__header .section-title {
  margin-bottom: 0;
}

.news__header {
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.news__all-link {
  font-size: .9rem;
  font-weight: 600;
  color: var(--clr-accent);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
  white-space: nowrap;
}

.news__all-link:hover {
  color: var(--clr-accent-dark);
}

.news__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.news-card {
  background: var(--clr-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.news-card__img {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--clr-primary-dark) 0%, var(--clr-primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.news-card__img svg {
  width: 40px;
  height: 40px;
  stroke: rgba(255,255,255,.2);
  fill: none;
  stroke-width: 1.5;
}

.news-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-card__body {
  padding: 1.4rem 1.4rem 1.6rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.news-card__date {
  font-size: .78rem;
  color: var(--clr-text-muted);
  margin-bottom: .6rem;
  display: flex;
  align-items: center;
  gap: 5px;
}

.news-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-primary);
  margin-bottom: .7rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card__excerpt {
  font-size: .88rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 1rem;
  font-size: .85rem;
  font-weight: 600;
  color: var(--clr-accent);
  transition: var(--transition);
}

.news-card__link:hover {
  color: var(--clr-accent-dark);
  gap: 8px;
}

/* ===== SUBSCRIBE ===== */
.subscribe {
  background: linear-gradient(135deg, var(--clr-primary-dark) 0%, var(--clr-primary) 100%);
  padding: 64px 0;
}

.subscribe__inner {
  text-align: center;
  max-width: 560px;
  margin-inline: auto;
}

.subscribe__title {
  font-size: clamp(1.2rem, 3vw, 1.7rem);
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: .8rem;
}

.subscribe__desc {
  font-size: .95rem;
  color: rgba(255,255,255,.65);
  margin-bottom: 2rem;
}

.subscribe__form {
  display: flex;
  gap: .75rem;
  max-width: 440px;
  margin-inline: auto;
}

.subscribe__input {
  flex: 1;
  padding: 12px 16px;
  border-radius: var(--radius);
  border: none;
  font-size: .95rem;
  outline: none;
  background: rgba(255,255,255,.1);
  color: var(--clr-white);
  border: 1px solid rgba(255,255,255,.2);
  min-width: 0;
  -webkit-appearance: none;
}

.subscribe__input::placeholder {
  color: rgba(255,255,255,.5);
}

.subscribe__input:focus {
  background: rgba(255,255,255,.15);
  border-color: var(--clr-accent);
}

.subscribe__success {
  font-size: 1rem;
  color: var(--clr-white);
  background: rgba(255,255,255,.15);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: var(--radius);
  padding: 12px 20px;
  max-width: 440px;
  margin-inline: auto;
}

/* ===== BRANDS ===== */
.brands {
  padding: 64px 0;
  background: var(--clr-white);
}

.brands__grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 1rem;
}

.brand-item {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: .8rem 1.6rem;
  font-size: .9rem;
  font-weight: 600;
  color: var(--clr-primary);
  transition: var(--transition);
  min-width: 100px;
  text-align: center;
}

.brand-item:hover {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--clr-primary-dark);
  color: rgba(255,255,255,.7);
  padding: 48px 0 32px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer__logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--clr-white);
  margin-bottom: .8rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer__desc {
  font-size: .88rem;
  line-height: 1.65;
  max-width: 280px;
}

.footer__heading {
  font-size: .85rem;
  font-weight: 700;
  color: var(--clr-white);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.footer__links a {
  font-size: .9rem;
  color: rgba(255,255,255,.6);
  transition: color var(--transition);
}

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

.footer__bottom {
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: .83rem;
}

.footer__bottom a {
  color: rgba(255,255,255,.5);
  transition: color var(--transition);
}

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

.footer__dev {
  font-size: .78rem;
  color: rgba(255,255,255,.35);
  letter-spacing: .01em;
  transition: color var(--transition);
  white-space: nowrap;
}

.footer__dev:hover {
  color: rgba(255,255,255,.7);
}

/* ===== MOBILE NAV OVERLAY ===== */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--clr-primary-dark);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.nav-overlay.is-open {
  display: flex;
}

.nav-overlay a {
  color: var(--clr-white);
  font-size: 1.3rem;
  font-weight: 600;
}

.nav-overlay__close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--clr-white);
  font-size: 2rem;
  line-height: 1;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer__about {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .header__nav {
    display: none;
  }
  .header__burger {
    display: flex;
  }

  .hero {
    padding: 60px 0 72px;
  }

  .services,
  .advantages,
  .news,
  .brands {
    padding: 56px 0;
  }

  .coop-banner__inner {
    flex-direction: column;
    text-align: center;
  }

  .news__header {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .footer__about {
    grid-column: auto;
  }

  .subscribe__form {
    flex-direction: column;
  }

  .subscribe__input {
    width: 100%;
  }
}

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

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

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

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

/* ===== LANGUAGE SWITCH ===== */
.lang-switch {
  display: flex;
  align-items: center;
  gap: .2rem;
  flex-shrink: 0;
}

.lang-switch__btn {
  font-size: .78rem;
  font-weight: 600;
  color: rgba(255,255,255,.55);
  padding: 2px 5px;
  border-radius: 3px;
  letter-spacing: .5px;
  transition: color var(--transition);
  text-transform: uppercase;
}

.lang-switch__btn:hover {
  color: var(--clr-accent);
}

.lang-switch__btn--active {
  color: var(--clr-white);
  border-bottom: 2px solid var(--clr-accent);
}

.lang-switch__sep {
  color: rgba(255,255,255,.25);
  font-size: .7rem;
  user-select: none;
}

.lang-switch--overlay {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,.12);
  justify-content: center;
}

.lang-switch--overlay .lang-switch__btn {
  font-size: .9rem;
  padding: 4px 10px;
}

@media (max-width: 768px) {
  .lang-switch:not(.lang-switch--overlay) {
    display: none;
  }
}

/* ===== SCROLL ANIMATIONS ===== */
/*
  Елементи з [data-reveal] спочатку невидимі.
  JS додає клас .is-visible коли елемент входить у viewport.
  prefers-reduced-motion вимикає анімації для користувачів з вестибулярними вадами.
*/
[data-reveal] {
  opacity: 0;
  transition-property: opacity, transform;
  transition-timing-function: cubic-bezier(.22, 1, .36, 1);
  transition-duration: .7s;
  will-change: opacity, transform;
}

[data-reveal="fade-up"] {
  transform: translateY(40px);
}

[data-reveal="fade-left"] {
  transform: translateX(-40px);
}

[data-reveal="fade-right"] {
  transform: translateX(40px);
}

[data-reveal="zoom"] {
  transform: scale(.94);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* Затримка для каскадних карток */
[data-delay="100"] { transition-delay: .1s; }
[data-delay="200"] { transition-delay: .2s; }
[data-delay="300"] { transition-delay: .3s; }
[data-delay="400"] { transition-delay: .4s; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ===== iOS Safari fixes ===== */
@supports (-webkit-touch-callout: none) {
  .hero {
    /* fix vh on iOS */
    min-height: -webkit-fill-available;
  }

  .subscribe__input {
    font-size: 16px; /* prevents zoom on focus */
  }
}