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

:root {
  --black: #0a0a0a;
  --black-2: #141414;
  --yellow: #ffe800;
  --white: #ffffff;
  --grey: #9a9a9a;
  --grey-2: #c7c7c7;
  --red: #e62117;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--black);
  color: var(--white);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0);
}

/* ===== КНОПКИ ===== */
.btn {
  display: inline-block;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border: none;
  cursor: pointer;
  padding: 14px 28px;
  font-size: 15px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn--yellow {
  background: var(--yellow);
  color: var(--black);
}
.btn--yellow:hover {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 rgba(255, 232, 0, 0.35);
}

.btn--ghost {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}
.btn--ghost:hover {
  background: var(--white);
  color: var(--black);
}

.btn--donate {
  background: var(--red);
  color: var(--white);
}
.btn--donate:hover {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 rgba(230, 33, 23, 0.4);
}

.btn--big {
  padding: 20px 44px;
  font-size: 18px;
}

/* ===== ШАПКА ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 3px solid var(--yellow);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  min-height: 64px;
}

.logo {
  font-weight: 900;
  font-size: 20px;
  color: var(--white);
  text-decoration: none;
  letter-spacing: 0.04em;
}
.logo__year { color: var(--yellow); }

.nav {
  display: flex;
  gap: 24px;
  margin-left: auto;
}
.nav a {
  color: var(--grey-2);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.nav a:hover { color: var(--yellow); }

.header__cta { padding: 10px 20px; font-size: 13px; }

/* ===== ОБЛОЖКА ===== */
.hero {
  padding: 110px 0 90px;
  text-align: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(255, 232, 0, 0.14), transparent 70%),
    var(--black);
  border-bottom: 1px solid #222;
}

.hero__kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--black);
  background: var(--yellow);
  padding: 6px 14px;
  margin-bottom: 28px;
}

.hero__title {
  font-size: clamp(44px, 9vw, 96px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.accent { color: var(--yellow); }

.hero__sub {
  margin-top: 22px;
  font-size: clamp(17px, 2.4vw, 22px);
  color: var(--grey-2);
  font-weight: 500;
}

/* ===== СЧЁТЧИК ===== */
.countdown {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin: 48px 0 44px;
  flex-wrap: wrap;
}

.countdown__cell {
  background: var(--black-2);
  border: 1px solid #2a2a2a;
  border-top: 3px solid var(--yellow);
  min-width: 130px;
  padding: 18px 10px 14px;
}

.countdown__num {
  display: block;
  font-size: clamp(38px, 6vw, 56px);
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--yellow);
}

.countdown__label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--grey);
}

.hero__actions {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}

/* ===== ЛИД ===== */
.statement {
  padding: 70px 0;
  background: var(--yellow);
  color: var(--black);
}

.statement__text {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  line-height: 1.45;
  max-width: 860px;
}

.statement__sign {
  margin-top: 18px;
  font-size: 16px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ===== СЕКЦИИ ===== */
.section { padding: 90px 0; }
.section:nth-of-type(even) { background: var(--black-2); }

.section__title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.05;
}
.section__title::after {
  content: "";
  display: block;
  width: 64px;
  height: 5px;
  background: var(--yellow);
  margin-top: 14px;
}

.section__lead {
  margin-top: 18px;
  font-size: 18px;
  color: var(--grey-2);
  max-width: 640px;
}

/* ===== ПРОГРАММА ===== */
.program__list {
  margin-top: 44px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.thesis {
  display: flex;
  gap: 26px;
  padding: 26px 24px;
  background: var(--black-2);
  border-left: 4px solid var(--yellow);
  transition: transform 0.15s ease;
}
.program .thesis { background: var(--black-2); }
.section:nth-of-type(even) .thesis { background: var(--black); }
.thesis:hover { transform: translateX(6px); }

.thesis__num {
  font-size: 44px;
  font-weight: 900;
  color: var(--yellow);
  line-height: 1;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.thesis__title {
  font-size: 22px;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.thesis__text {
  color: var(--grey-2);
  font-size: 16px;
  max-width: 720px;
}

/* ===== ФОРМА ===== */
.join__form {
  margin-top: 44px;
  max-width: 720px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.join__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.field { display: flex; flex-direction: column; gap: 8px; }

.field__label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--grey-2);
}

.field__input {
  background: var(--black);
  border: 2px solid #2e2e2e;
  color: var(--white);
  padding: 14px 16px;
  font-size: 16px;
  font-family: inherit;
  transition: border-color 0.15s ease;
}
.field__input:focus {
  outline: none;
  border-color: var(--yellow);
}
.field__input::placeholder { color: #555; }

select.field__input { appearance: none; }

.field__input--area { resize: vertical; }

.join__submit { align-self: flex-start; margin-top: 6px; }

.join__status {
  font-size: 15px;
  font-weight: 600;
  min-height: 22px;
}
.join__status--ok { color: var(--yellow); }
.join__status--err { color: var(--red); }

/* ===== ДОНАТЫ ===== */
.donate__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: center;
}

.donate__goal {
  background: var(--black-2);
  border: 1px solid #2a2a2a;
  border-top: 3px solid var(--red);
  padding: 30px 28px;
}
.donate .donate__goal { background: var(--black); }

.donate__goal-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--grey);
}

.donate__goal-num {
  font-size: 46px;
  font-weight: 900;
  color: var(--red);
  line-height: 1.1;
  margin: 8px 0 10px;
}

.donate__goal-target {
  font-size: 14px;
  color: var(--grey-2);
}

/* ===== ФУТЕР ===== */
.footer {
  border-top: 3px solid var(--yellow);
  padding: 44px 0;
  background: var(--black);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: center;
}

.footer__slogan {
  font-size: 18px;
  font-weight: 800;
  text-transform: uppercase;
}

.footer__copy {
  font-size: 13px;
  color: var(--grey);
}

/* ===== АДАПТИВ ===== */
@media (max-width: 760px) {
  .header__inner { flex-wrap: wrap; padding: 10px 20px; gap: 14px; }
  .nav { order: 3; width: 100%; margin-left: 0; justify-content: center; flex-wrap: wrap; gap: 16px; }
  .header__cta { margin-left: auto; }

  .hero { padding: 70px 0 60px; }

  .countdown { gap: 8px; }
  .countdown__cell { min-width: 76px; padding: 12px 6px 10px; }
  .countdown__num { font-size: 30px; }
  .countdown__label { font-size: 10px; }

  .btn--big { padding: 16px 26px; font-size: 15px; width: 100%; text-align: center; }
  .hero__actions { flex-direction: column; }

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

  .thesis { flex-direction: column; gap: 10px; padding: 22px 18px; }
  .thesis__num { font-size: 32px; }

  .donate__inner { grid-template-columns: 1fr; gap: 32px; }

  .join__submit { align-self: stretch; }

  .section { padding: 64px 0; }
}