/* Volna Neo сайт — фирменный синий градиент, Material-style карточки. */

:root {
  --c-primary: #1565c0;
  --c-primary-dark: #0d47a1;
  --c-primary-light: #1e88e5;
  --c-text: #0a1633;
  --c-text-muted: #4a5a78;
  --c-bg: #f5f8ff;
  --c-card: #ffffff;
  --c-border: rgba(13, 71, 161, 0.08);
  --shadow-sm: 0 2px 4px rgba(13, 71, 161, 0.05), 0 1px 2px rgba(13, 71, 161, 0.04);
  --shadow-md: 0 8px 24px rgba(13, 71, 161, 0.08), 0 2px 6px rgba(13, 71, 161, 0.05);
  --shadow-lg: 0 14px 36px rgba(13, 71, 161, 0.14), 0 4px 12px rgba(13, 71, 161, 0.07);
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

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

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

.material-symbols-rounded {
  font-variation-settings: "FILL" 0, "wght" 500, "GRAD" 0, "opsz" 24;
  vertical-align: middle;
}

/* ── Hero ───────────────────────────────────────────────── */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
  color: #fff;
  padding: 24px 24px 96px;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.12), transparent 60%);
  pointer-events: none;
}

.hero__inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: relative;
  z-index: 1;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
}

.brand__logo {
  width: 40px;
  height: 40px;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.25));
  transition: transform var(--transition);
}

.brand:hover .brand__logo {
  transform: rotate(-6deg) scale(1.05);
}

.brand__name {
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.01em;
}

.brand__version {
  font-size: 13px;
  opacity: 0.7;
  padding: 2px 10px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
}

.web-login {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  background: #fff;
  color: var(--c-primary-dark);
  font-weight: 600;
  border-radius: 999px;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition);
}

.web-login:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.web-login .material-symbols-rounded {
  font-size: 22px;
}

.hero__content {
  max-width: 1180px;
  margin: 80px auto 0;
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero h1 {
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 20px;
}

.hero__lead {
  font-size: clamp(16px, 2.4vw, 20px);
  opacity: 0.9;
  margin: 0 auto 36px;
  max-width: 640px;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 16px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.cta--primary {
  background: #fff;
  color: var(--c-primary-dark);
  box-shadow: var(--shadow-md);
}

.cta--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.cta--secondary {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(8px);
}

.cta--secondary:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* ── Downloads ──────────────────────────────────────────── */
.downloads {
  max-width: 1180px;
  margin: -56px auto 0;
  padding: 0 24px 56px;
  position: relative;
  z-index: 2;
}

.downloads__title {
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  color: var(--c-text);
}

/* Подсекция меньшего размера (Серверные компоненты под Дистрибутивами). */
.downloads__title--sub {
  font-size: clamp(18px, 2.6vw, 24px);
  margin-top: 56px;
}

/* Нейтральная (серая) иконка для server/shell-карточек, чтобы визуально
   отличать backend от основных дистрибутивов клиента. */
.card__icon--neutral {
  background: linear-gradient(135deg, #5a6a86, #2d3a52);
}

.downloads__lead code {
  background: rgba(13, 71, 161, 0.08);
  padding: 1px 6px;
  border-radius: 6px;
  font-size: 0.92em;
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
}

.downloads__lead {
  color: var(--c-text-muted);
  margin: 0 0 32px;
  font-size: 15px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background: var(--c-card);
  border-radius: var(--radius-md);
  padding: 28px 24px 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(13, 71, 161, 0.18);
}

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--c-primary-light), var(--c-primary-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.card__icon .material-symbols-rounded {
  font-size: 32px;
  font-variation-settings: "FILL" 1, "wght" 500;
}

.card__title {
  font-size: 20px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}

.card__meta {
  font-size: 14px;
  color: var(--c-text-muted);
  margin: 0;
}

.card__btn {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--c-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}

.card__btn:hover {
  background: var(--c-primary-dark);
  transform: translateY(-1px);
}

.card__btn .material-symbols-rounded {
  font-size: 20px;
}

/* Карточка с недоступным дистрибутивом (артефакта нет на сервере). */
.card__btn--disabled,
.card__btn[aria-disabled="true"] {
  background: rgba(13, 71, 161, 0.18);
  color: var(--c-text-muted);
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none;
}

.card__btn--disabled:hover,
.card__btn[aria-disabled="true"]:hover {
  background: rgba(13, 71, 161, 0.18);
  transform: none;
}

/* Бейдж «скоро» (или иной маркер статуса) внутри meta-строки. */
.card__meta em {
  display: inline-block;
  margin-left: 2px;
  padding: 1px 8px;
  font-style: normal;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--c-primary-dark);
  background: rgba(21, 101, 192, 0.12);
  border-radius: 999px;
  vertical-align: 1px;
}

/* На карточках где артефакт недоступен, иконку слегка приглушаем. */
.card:has(.card__btn--disabled) .card__icon,
.card:has(.card__btn[aria-disabled="true"]) .card__icon {
  filter: saturate(0.55);
}

.card:has(.card__btn--disabled):hover,
.card:has(.card__btn[aria-disabled="true"]):hover {
  transform: none;
  border-color: var(--c-border);
  box-shadow: var(--shadow-sm);
}

.downloads__hashes {
  margin: 28px 0 0;
  font-size: 13px;
  color: var(--c-text-muted);
}

.downloads__hashes a {
  color: var(--c-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ── Features ───────────────────────────────────────────── */
.features {
  background: #fff;
  padding: 64px 24px;
  border-top: 1px solid var(--c-border);
}

.features__grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}

.feature {
  text-align: left;
}

.feature__icon {
  font-size: 36px;
  color: var(--c-primary);
  background: rgba(21, 101, 192, 0.08);
  border-radius: 12px;
  padding: 8px;
  margin-bottom: 12px;
  font-variation-settings: "FILL" 1, "wght" 500;
}

.feature h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}

.feature p {
  margin: 0;
  color: var(--c-text-muted);
  font-size: 14px;
}

/* ── Footer ─────────────────────────────────────────────── */
.foot {
  background: var(--c-text);
  color: rgba(255, 255, 255, 0.75);
  padding: 28px 24px;
}

.foot__inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
  flex-wrap: wrap;
}

.foot__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  opacity: 0.85;
  transition: opacity var(--transition);
}

.foot__link:hover {
  opacity: 1;
}

@media (max-width: 600px) {
  .hero {
    padding: 18px 18px 72px;
  }
  .hero__content {
    margin-top: 56px;
  }
  .brand__version {
    display: none;
  }
}

/* ── Уважение reduced-motion ───────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}