:root {
  --bg-deep: #0f0618;
  --bg-card: rgba(26, 10, 46, 0.55);
  --surface: #161022;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f4f2f8;
  --muted: rgba(244, 242, 248, 0.72);
  --accent: #a78bfa;
  --accent-strong: #8b5cf6;
  --brand: #1a0a2e;
  --radius-lg: 20px;
  --radius-md: 12px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --font: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif;
  --sait: var(--android-safe-area-inset-top, env(safe-area-inset-top, 0px));
  --saib: var(--android-safe-area-inset-bottom, env(safe-area-inset-bottom, 0px));
  --sail: var(--android-safe-area-inset-left, env(safe-area-inset-left, 0px));
  --sair: var(--android-safe-area-inset-right, env(safe-area-inset-right, 0px));
  --app-vh: 100vh;
  --vv-height: 100vh;
  --vv-offset-top: 0px;
  --vv-offset-left: 0px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg-deep);
  line-height: 1.6;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
}

.site-body {
  padding-left: var(--sail);
  padding-right: var(--sair);
}

.site-chrome {
  padding-top: var(--sait);
}

body.lang-picker-open,
body.nav-open {
  overflow: hidden;
  touch-action: none;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

/* --- Shared site chrome (landing + legal) --- */

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(15, 6, 24, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header__inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 16px;
}

.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 3.25rem;
  padding: 12px 0;
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  min-width: 0;
  flex: 1 1 auto;
}

.site-header__brand span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-header__brand:hover {
  text-decoration: none;
  color: #fff;
}

.site-logo {
  width: 40px;
  height: 40px;
  display: block;
  border-radius: 50%;
  overflow: hidden;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.45));
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 0.92rem;
}

.site-nav--desktop {
  display: none;
}

.site-nav-drawer {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px 0 12px;
  border-top: 1px solid var(--border);
}

.site-nav-drawer.is-open {
  display: flex;
}

.site-nav-drawer a,
.site-nav-link {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  line-height: 1.4;
}

.site-nav-drawer a:hover,
.site-nav-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  text-decoration: none;
}

.site-nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
}

.site-nav-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.site-nav-toggle.is-open .site-nav-toggle__open {
  display: none;
}

.site-nav-toggle.is-open .site-nav-toggle__close {
  display: block !important;
}

.site-nav a {
  color: var(--muted);
}

.site-nav a:hover {
  color: #fff;
}

.site-header__right {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
}

/* Language picker (legal pages + shared chrome) */
.lang-picker {
  position: relative;
}

.lang-picker__toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font: inherit;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background 0.15s ease;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.lang-picker__toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.lang-picker__panel {
  position: absolute;
  inset-inline-end: 0;
  top: calc(100% + 8px);
  z-index: 50;
  width: min(20rem, calc(100vw - 2rem));
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.lang-picker__panel.hidden {
  display: none;
}

/* Visual-viewport shell: sized by JS for iOS Safari, Chrome Android, WebView */
.lang-overlay-shell {
  position: fixed;
  z-index: 9997;
  display: none;
  flex-direction: column;
  justify-content: flex-end;
  pointer-events: none;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.lang-overlay-shell.is-open {
  display: flex;
  pointer-events: auto;
}

.lang-overlay-shell .lang-picker__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 1;
  pointer-events: auto;
}

.lang-picker__backdrop {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: rgba(0, 0, 0, 0.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.lang-picker__backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}

@media (prefers-reduced-motion: reduce) {
  .lang-picker__backdrop {
    transition: none;
  }
}

.lang-picker__search-wrap {
  padding: 12px;
  border-bottom: 1px solid var(--border);
}

.lang-picker__search {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
  color: var(--text);
  font: inherit;
  font-size: 0.88rem;
  outline: none;
}

.lang-picker__search:focus {
  border-color: rgba(139, 92, 246, 0.5);
}

.lang-picker__search::placeholder {
  color: rgba(244, 242, 248, 0.45);
}

.lang-picker__list {
  max-height: 18rem;
  overflow-y: auto;
  padding: 4px 0;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
}

.lang-picker__list button {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.88rem;
  text-align: start;
  cursor: pointer;
  transition: background 0.12s ease;
}

.lang-picker__list button:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.lang-picker__list button.is-active {
  background: rgba(139, 92, 246, 0.18);
  color: #fff;
}

.site-footer {
  margin-top: 64px;
  padding: 32px 24px 48px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  justify-content: center;
  margin-bottom: 12px;
}

.legal-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 16px 40px;
  padding-bottom: max(40px, env(safe-area-inset-bottom));
  overflow-wrap: anywhere;
  word-wrap: break-word;
}

.legal-page h1 {
  margin-top: 0;
  font-size: clamp(1.45rem, 5vw, 1.85rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.legal-page h2 {
  margin-top: 28px;
  font-size: 1.15rem;
  color: #e8e4f2;
}

.legal-page ul {
  padding-left: 1.25rem;
  color: var(--muted);
}

.legal-page li {
  margin: 6px 0;
}

/* --- Landing only --- */

.landing-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(139, 92, 246, 0.35), transparent 55%),
    radial-gradient(ellipse 80% 50% at 100% 50%, rgba(99, 102, 241, 0.12), transparent 45%),
    radial-gradient(ellipse 60% 40% at 0% 80%, rgba(167, 139, 250, 0.1), transparent 50%),
    var(--bg-deep);
}

.landing-main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px 64px;
}

.hero {
  padding: 48px 0 56px;
  text-align: center;
}

.hero__logo-ring {
  width: 104px;
  height: 104px;
  margin: 0 auto 24px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero__logo {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 50%;
  object-fit: contain;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.03em;
}

.hero__lead {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 28px;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent-strong), #6366f1);
  color: #fff;
  box-shadow: 0 12px 40px rgba(99, 102, 241, 0.35);
}

.btn--secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border: 1px solid var(--border);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-top: 8px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  backdrop-filter: blur(10px);
}

.feature-card h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: #fff;
}

.feature-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.section-title {
  text-align: center;
  margin: 56px 0 24px;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.privacy-strip {
  margin-top: 48px;
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(22, 16, 34, 0.9);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.privacy-strip h2 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}

.privacy-strip p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 767px) {
  .site-header__right {
    flex-shrink: 0;
  }

  .site-nav--desktop {
    display: none !important;
  }

  .lang-picker__toggle {
    min-height: 2.75rem;
  }

  .lang-picker__toggle [data-lang-name] {
    max-width: 5rem;
  }

  .lang-picker__search {
    font-size: 16px;
  }

  .site-nav-toggle {
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }

  .lang-overlay-shell .lang-picker__panel:not(.hidden) {
    position: relative;
    inset: auto;
    top: auto;
    left: auto;
    right: auto;
    bottom: auto;
    inset-inline-end: auto;
    z-index: 1;
    width: 100%;
    max-width: none;
    max-height: min(88%, calc(var(--vv-height, 100dvh) * 0.88));
    margin: 0;
    border-radius: 20px 20px 0 0;
    padding-bottom: max(var(--saib), 8px);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    flex-shrink: 0;
  }

  .lang-picker__panel.lang-picker__panel--sheet:not(.hidden) {
    max-height: min(88%, calc(var(--vv-height, 100dvh) * 0.88));
  }

  .lang-picker__panel.lang-picker__panel--sheet .lang-picker__list {
    max-height: none;
    flex: 1 1 auto;
    min-height: 0;
  }
}

@media (min-width: 768px) {
  .site-header__inner {
    padding: 0 24px;
  }

  .site-header__row {
    padding: 16px 0;
  }

  .site-nav-toggle {
    display: none;
  }

  .site-nav-drawer {
    display: none !important;
  }

  .site-nav--desktop {
    display: flex !important;
  }

  .site-header__brand {
    flex: 0 1 auto;
  }
}

@media (max-width: 520px) {
  .site-footer {
    padding-left: 16px;
    padding-right: 16px;
  }
}