:root {
  --section-space-desktop: 140px;
  --section-space-tablet: 110px;
  --section-space-mobile: 84px;

  --section-title-size: clamp(40px, 6vw, 88px);
  --section-subtitle-size: clamp(13px, 1.3vw, 18px);
  --card-radius: 28px;
  --menu-radius: 28px;
  --container-pad: 24px;
}

.container {
  width: min(1240px, calc(100% - 48px));
}

.about,
.team,
.partners,
.faq,
.cta,
.contacts {
  padding-top: var(--section-space-desktop);
  padding-bottom: var(--section-space-desktop);
}

.pilot {
  padding-bottom: var(--section-space-desktop);
}

.about-top,
.pilot-top,
.team-top,
.partners-top,
.faq-top,
.cta-top,
.contacts-top {
  margin-bottom: 72px;
}

.about-top h2,
.pilot-top h2,
.team-top h2,
.partners-top h2,
.faq-top h2,
.cta-top h2,
.contacts-top h2 {
  font-size: var(--section-title-size);
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.about-top p,
.pilot-top p,
.team-top p,
.partners-top p,
.faq-top p,
.cta-top p,
.contacts-top p {
  margin-bottom: 24px;
  font-size: var(--section-subtitle-size);
  letter-spacing: 0.28em;
}

.about-top h2 span,
.pilot-top h2 span,
.team-top h2 span,
.partners-top h2 span,
.faq-top h2 span,
.cta-top h2 span,
.contacts-top h2 span {
  display: block;
  margin-top: 12px;
  font-size: clamp(20px, 2vw, 30px);
  line-height: 1.15;
}

/* єдина логіка карток */
.about-list article,
.pilot-text > div,
.team-list article,
.partners-list article,
.cta-list article,
.contacts-list article,
.alert,
.faq-item {
  border-radius: var(--card-radius);
}

/* єдині відступи всередині */
.about-list article,
.pilot-text > div,
.team-list article,
.partners-list article,
.cta-list article,
.contacts-list article {
  padding: 32px;
}

.about-list,
.pilot-text,
.team-list,
.partners-list,
.faq-list,
.cta-list,
.contacts-list {
  gap: 28px;
}

.row {
  flex-wrap: wrap;
}

/* -------- desktop large -------- */
@media (max-width: 1280px) {
  .container {
    width: min(100% - 40px, 1180px);
  }

  .logo {
    font-size: clamp(42px, 5vw, 80px);
  }

  .hero-content h1 {
    font-size: clamp(74px, 10vw, 140px);
  }

  .hero-name span {
    font-size: clamp(28px, 3.2vw, 48px);
  }

  .hero-name b {
    font-size: clamp(22px, 2.8vw, 42px);
  }

  .about-list article,
  .about-list .image,
  .team-list article img {
    min-height: auto;
  }

  .team-list article {
    grid-template-columns: 360px 1fr;
    gap: 32px;
  }
}

/* -------- tablet -------- */
@media (max-width: 991px) {
  :root {
    --section-space-desktop: var(--section-space-tablet);
    --card-radius: 24px;
  }

  .hero::before {
    opacity: 0.3;
  }

  body {
    font-size: 18px;
  }

  .container {
    width: min(100% - 32px, 100%);
  }

  .header {
    padding: 14px 0;
  }

  .nav-container {
    padding: 0;
    gap: 16px;
  }

  .logo {
    position: relative;
    z-index: 12000;
    max-width: 200px;
  }

  .burger {
    display: flex;
    position: relative;
    z-index: 12000;
  }

  .burger span {
    background: #fff;
    border-radius: 999px;
  }

  .nav {
    position: fixed;
    top: 16px;
    right: 16px;
    left: 16px;
    height: auto;
    min-height: calc(100vh - 32px);
    padding: 108px 28px 28px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--menu-radius);
    background: linear-gradient(
      180deg,
      rgba(31, 38, 58, 0.96) 0%,
      rgba(61, 71, 104, 0.98) 100%
    );
    backdrop-filter: blur(18px);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
    flex-direction: column;
    justify-content: space-between;
    align-items: stretch;
    gap: 28px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-14px) scale(0.98);
    transition:
      opacity 0.35s ease,
      visibility 0.35s ease,
      transform 0.35s ease;
  }

  .nav.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
    right: 0;
    left: 0;
    top: 0;
    border-radius: 0;
  }

  .nav-list {
    display: grid;
    gap: 12px;
  }

  .nav-list a {
    display: flex;
    align-items: center;
    min-height: 56px;
    padding: 16px 18px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    font-family: var(--font-title);
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition:
      background 0.25s ease,
      transform 0.25s ease;
  }

  .nav-list a:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(4px);
  }

  .nav .social-block {
    gap: 12px;
  }

  .social-link {
    width: 48px;
    height: 48px;
  }

  .hero {
    min-height: 100svh;
    padding-top: 130px;
    padding-bottom: 60px;
  }

  .hero-content {
    gap: 18px;
    padding: 50px 0;
  }

  .hero-content > span::before,
  .hero-content > span::after {
    width: 72px;
  }

  .hero-content h1 {
    font-size: clamp(56px, 13vw, 96px);
    line-height: 0.9;
    text-align: center;
  }

  .hero-name span,
  .hero-name b {
    text-align: center;
  }

  .btn,
  .btn-hero {
    margin-top: 20px;
    min-height: 52px;
    padding: 14px 20px;
    font-size: 15px;
  }

  .about-list,
  .pilot-text,
  .contacts-list {
    grid-template-columns: 1fr;
  }

  .team-list article,
  .partners-list article,
  .cta-list article {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .team-list article > div:first-of-type,
  .partners-list article > div:first-of-type,
  .cta-list article > div:first-of-type {
    grid-column: auto;
    max-width: none;
  }

  .team-list article img {
    height: 460px;
  }

  .about-list .image .side-word,
  .pilot-text > span,
  .team-list article > span,
  .faq-list article > span {
    display: none;
  }

  .alert {
    padding: 34px 28px;
    margin-top: 72px;
  }

  .alert > div {
    gap: 24px;
    align-items: flex-start;
  }

  .alert span {
    font-size: 140px;
    line-height: 0.9;
  }

  .faq-question span {
    font-size: 20px;
  }

  .pilot-run {
    margin-bottom: 56px;
  }

  .pilot-run div {
    font-size: 16px;
    letter-spacing: 0.2em;
  }
  .social-block {
    justify-content: center;
  }

  .social-block {
    margin-top: 15px;
  }
  .partners-cta {
    padding: 22px;
  }
}

/* -------- mobile -------- */
@media (max-width: 767px) {
  :root {
    --section-space-desktop: var(--section-space-mobile);
    --card-radius: 22px;
    --menu-radius: 22px;
  }

  html {
    overflow-x: hidden;
  }

  body {
    font-size: 16px;
  }

  .cta-list {
    grid-template-columns: 1fr;
  }

  .container {
    width: calc(100% - 24px);
  }

  .about,
  .pilot,
  .team,
  .partners,
  .faq,
  .cta,
  .contacts {
    padding-top: var(--section-space-desktop);
    padding-bottom: var(--section-space-desktop);
  }

  .pilot {
    padding-top: 0;
  }
  .about-top,
  .pilot-top,
  .team-top,
  .partners-top,
  .faq-top,
  .cta-top,
  .contacts-top {
    margin-bottom: 44px;
  }

  .about-top h2,
  .pilot-top h2,
  .team-top h2,
  .partners-top h2,
  .faq-top h2,
  .cta-top h2,
  .contacts-top h2 {
    font-size: clamp(30px, 9vw, 44px);
    line-height: 1;
  }

  .about-top p,
  .pilot-top p,
  .team-top p,
  .partners-top p,
  .faq-top p,
  .cta-top p,
  .contacts-top p {
    font-size: 12px;
    letter-spacing: 0.22em;
    margin-bottom: 18px;
  }

  .about-top h2 span,
  .pilot-top h2 span,
  .team-top h2 span,
  .partners-top h2 span,
  .faq-top h2 span,
  .cta-top h2 span,
  .contacts-top h2 span {
    margin-top: 10px;
    font-size: 18px;
  }

  .hero {
    padding-top: 130px;
    padding-bottom: 70px;
    min-height: auto;
  }

  .hero-content > span {
    gap: 10px;
    letter-spacing: 0.14em;
    font-size: 4vw;
    text-align: center;
  }

  .hero-content > span::before,
  .hero-content > span::after {
    width: 36px;
  }

  .hero-content h1 {
    font-size: 10vw;
    letter-spacing: 0.08em;
  }

  .hero-name {
    gap: 10px;
  }

  .hero-name span {
    font-size: 16px;
    line-height: 1.2;
  }

  .hero-name b {
    font-size: 16px;
    letter-spacing: 0.14em;
    line-height: 1.35;
  }

  .hero-content .row {
    margin-top: 20px;
  }

  .row {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .btn,
  .btn-hero {
    width: 100%;
    margin-top: 0;
    min-height: 50px;
    padding: 14px 16px;
    font-size: 14px;
  }

  .about-list article,
  .pilot-text > div,
  .team-list article,
  .partners-list article,
  .cta-list article,
  .contacts-list article {
    padding: 22px;
  }

  .about-list,
  .pilot-text,
  .team-list,
  .partners-list,
  .faq-list,
  .cta-list,
  .contacts-list {
    gap: 18px;
  }

  .about-list h3,
  .faq-list h3,
  .team-list article > div:first-of-type h3,
  .partners-list h3,
  .cta-list h3,
  .contacts-list h3 {
    font-size: 24px;
    line-height: 1.15;
    margin-bottom: 18px;
  }

  .about-list p,
  .about-list li,
  .pilot-text p,
  .pilot-text li,
  .faq-answer p,
  .team-list p,
  .partners-list p,
  .cta-list p,
  .contacts-list p,
  .about-list .pilot-text li,
  .team-list article > div:last-of-type p {
    font-size: 16px;
    line-height: 1.7;
  }

  .pilot-text ul {
    gap: 10px;
  }

  .about-list .image .image-box {
    padding-top: 125px;
    align-items: center;
  }

  .about-list .image .image-box p {
    font-size: 28px;
    max-width: 100%;
    line-height: 1.4;
    text-align: center;
  }

  .team-list h4 {
    font-size: 28px;
    line-height: 1.1;
  }
  .alert .row {
    margin-top: 20px;
  }
  .faq-item {
    border-radius: 20px;
    padding: 0 16px;
  }
  .about-list .image .row {
    width: 100%;
  }
  .faq-question {
    padding: 18px 0;
    gap: 14px;
  }

  .faq-question span {
    font-size: 17px;
    line-height: 1.35;
  }

  .faq-question i,
  .faq-question i::before,
  .faq-question i::after {
    width: 18px;
  }

  .alert {
    padding: 40px;
    margin-top: 48px;
    max-width: 90vw;
  }

  .alert span {
    font-size: 82px;
    position: absolute;
    left: -30px;
    top: -60px;
    z-index: 10;
  }

  .alert p,
  p.accent {
    font-size: 18px;
    line-height: 1.35;
  }

  .contacts-list {
    grid-template-columns: 1fr;
  }

  .contacts-list .social-block {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 10px;
  }

  .pilot-run {
    padding: 14px 0;
    margin-bottom: 40px;
  }

  .pilot-run div {
    font-size: 13px;
    letter-spacing: 0.16em;
  }
}

/* -------- small mobile -------- */
@media (max-width: 479px) {
  .nav {
    top: 12px;
    right: 12px;
    left: 12px;
    min-height: max-content;
    padding: 90px 15px 30px;
  }

  .logo {
    font-size: 32px;
  }

  .social-link {
    width: 44px;
    height: 44px;
    font-size: 18px;
  }

  .about-list article > div,
  .partners-list article > div,
  .cta-list article > div {
    gap: 10px;
    padding: 10px 12px;
  }

  .about-list article > div span {
    font-size: 15px;
    letter-spacing: 0.16em;
  }

  .about-list .image .image-box p {
    font-size: 24px;
  }
}