/* ╭──────────────────────────────────────────────────────────────╮
   │ Landing (static) — Tronergy tronergy.app                     │
   │ Копия .lnas__* и .lang-tuner__* из React-версии.             │
   ╰──────────────────────────────────────────────────────────────╯ */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: #07090F; }

.lnas {
  --lna-bg:            #07090F;
  --lna-bg-elev:       #0B0F17;
  --lna-bg-card:       rgba(255, 255, 255, 0.03);
  --lna-line:          rgba(255, 255, 255, 0.07);
  --lna-line-strong:   rgba(255, 255, 255, 0.12);

  --lna-text:          #EDF1F7;
  --lna-text-dim:      #A7B4C9;
  --lna-text-mute:     #6B7A99;

  --lna-green:         #00FFAA;
  --lna-green-soft:    rgba(0, 255, 170, 0.08);
  --lna-green-border:  rgba(0, 255, 170, 0.2);
  --lna-blue:          #00B8FF;

  --lna-sans:  -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, system-ui, sans-serif;
  --lna-mono:  ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  --lna-ease:  cubic-bezier(0.16, 1, 0.3, 1);

  background: var(--lna-bg);
  color: var(--lna-text);
  font-family: var(--lna-sans);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Ambient */
.lnas__grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 255, 170, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 170, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 25%, black 30%, transparent 100%);
          mask-image: radial-gradient(ellipse 90% 70% at 50% 25%, black 30%, transparent 100%);
}
.lnas__glow {
  position: fixed;
  top: -300px;
  right: -100px;
  width: 600px;
  height: 600px;
  z-index: 0;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(120px);
  background: radial-gradient(circle, rgba(0, 255, 170, 0.06) 0%, transparent 65%);
}

/* Основной блок */
.lnas__main {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 22px 16px calc(120px + env(safe-area-inset-bottom));
  position: relative;
  z-index: 1;
}
.lnas__inner {
  width: 100%;
  max-width: 480px;
  box-sizing: border-box;
}

/* Шапка: бренд слева · tg справа */
.lnas__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 16px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--lna-line);
}
.lnas__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.lnas__brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--lna-green-soft);
  border: 1px solid var(--lna-green-border);
  color: var(--lna-green);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.lnas__brand-name {
  font-family: var(--lna-mono);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #00FFAA, #00B8FF);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.lnas__tg {
  font-size: 13px;
  color: var(--lna-blue);
  text-decoration: none;
}
.lnas__tg:hover { text-decoration: underline; }

/* H1 + подводка */
.lnas__h1 {
  margin: 0 0 10px;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--lna-text);
}
.lnas__lead {
  font-size: 15.5px;
  color: var(--lna-text-dim);
  line-height: 1.6;
  margin: 0 0 20px;
}

/* Карточка цены */
.lnas__price-card {
  background: var(--lna-bg-card);
  border: 1px solid var(--lna-line);
  border-radius: 24px;
  padding: 18px 20px;
  margin-bottom: 14px;
}
.lnas__price-label {
  font-size: 14.5px;
  color: var(--lna-text-dim);
  margin-bottom: 8px;
}
.lnas__price-value {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}
.lnas__price-num {
  font-family: var(--lna-mono);
  font-size: 48px;
  font-weight: 800;
  line-height: 1;
  color: var(--lna-text);
}
.lnas__price-currency {
  font-family: var(--lna-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--lna-text-mute);
}
.lnas__price-compare {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  color: var(--lna-text-dim);
  margin-bottom: 16px;
}
.lnas__price-compare svg { color: var(--lna-green); flex-shrink: 0; }
.lnas__price-strike {
  font-family: var(--lna-mono);
  color: var(--lna-text-mute);
  text-decoration: line-through;
}

/* Разбивка расходов */
.lnas__break-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 14px 0 0;
  border-top: 1px solid var(--lna-line);
  background: transparent;
  border-left: none;
  border-right: none;
  border-bottom: none;
  cursor: pointer;
  font-family: inherit;
  color: inherit;
}
.lnas__break-title {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--lna-text-dim);
}
.lnas__break-chevron {
  color: var(--lna-text-mute);
  font-size: 13px;
  transition: transform .2s var(--lna-ease);
  display: inline-block;
}
.lnas__break-toggle[aria-expanded="true"] .lnas__break-chevron { transform: rotate(180deg); }
.lnas__break-body { margin-top: 8px; display: none; }
.lnas__break-toggle[aria-expanded="true"] + .lnas__break-body { display: block; }
.lnas__break-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 7px 0;
  font-size: 14.5px;
}
.lnas__break-row > span:first-child { color: var(--lna-text-dim); padding-right: 12px; }
.lnas__break-row > span:last-child {
  font-family: var(--lna-mono);
  color: var(--lna-text);
  white-space: nowrap;
  flex-shrink: 0;
}
.lnas__break-row--total {
  border-top: 1px solid var(--lna-line);
  margin-top: 4px;
  padding-top: 11px;
}
.lnas__break-row--total > span:first-child { font-weight: 700; color: var(--lna-text); }
.lnas__break-row--total > span:last-child {
  font-weight: 700;
  color: var(--lna-green);
  font-size: 15.5px;
}
.lnas__break-note {
  font-size: 12.5px;
  color: var(--lna-text-mute);
  line-height: 1.6;
  margin-top: 8px;
}

/* CTA */
.lnas__cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  background: var(--lna-green-soft);
  border: 1px solid var(--lna-green-border);
  border-radius: 18px;
  padding: 16px;
  font-family: var(--lna-sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--lna-green);
  text-decoration: none;
  margin-bottom: 10px;
  cursor: pointer;
  box-sizing: border-box;
  transition: background .15s var(--lna-ease);
}
.lnas__cta:hover { background: rgba(0, 255, 170, 0.14); }

.lnas__cta-outline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  background: transparent;
  border: 1px solid var(--lna-line);
  border-radius: 18px;
  padding: 15px;
  font-family: var(--lna-sans);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--lna-text-dim);
  text-decoration: none;
  cursor: pointer;
  box-sizing: border-box;
  margin-bottom: 10px;
  transition: border-color .15s var(--lna-ease), color .15s var(--lna-ease);
}
.lnas__cta-outline:hover { border-color: var(--lna-line-strong); color: var(--lna-text); }
.lnas__cta-outline-link { color: var(--lna-blue); }

/* Guide (RU/EN) */
.lnas__guide {
  text-align: center;
  font-size: 13.5px;
  margin-bottom: 6px;
}
.lnas__guide-link {
  color: var(--lna-blue);
  text-decoration: none;
}
.lnas__guide-link:hover { text-decoration: underline; }

/* Trust (ZH) */
.lnas__trust {
  text-align: center;
  font-size: 13.5px;
  color: var(--lna-green);
  margin-bottom: 4px;
}

/* Как работает */
.lnas__how {
  background: var(--lna-bg-card);
  border: 1px solid var(--lna-line);
  border-radius: 18px;
  padding: 16px 18px;
  margin-top: 14px;
}
.lnas__how-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--lna-text);
}
.lnas__step {
  display: flex;
  gap: 13px;
  align-items: flex-start;
  margin-bottom: 12px;
}
.lnas__step:last-child { margin-bottom: 0; }
.lnas__step-num {
  flex-shrink: 0;
  width: 27px;
  height: 27px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--lna-line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--lna-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--lna-text);
}
.lnas__step-text {
  font-size: 15px;
  line-height: 1.65;
  color: var(--lna-text-dim);
  padding-top: 2px;
}

/* Подвал */
.lnas__foot {
  position: relative;
  z-index: 1;
}
.lnas__foot-inner {
  max-width: 480px;
  margin: 0 auto;
  padding: 14px 16px 18px;
  border-top: 1px solid var(--lna-line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--lna-mono);
  font-size: 11px;
  color: var(--lna-text-mute);
}
.lnas__foot-right {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.lnas__foot-right a { color: inherit; text-decoration: none; }
.lnas__foot-right a:hover { color: var(--lna-text-dim); }

/* Мобилка */
@media (max-width: 640px) {
  .lnas__main { padding: 18px 16px calc(120px + env(safe-area-inset-bottom)); }
  .lnas__header { margin-bottom: 22px; }
  .lnas__brand-mark { width: 30px; height: 30px; }
  .lnas__brand-name { font-size: 20px; }
  .lnas__h1 { font-size: 25px; }
  .lnas__lead { font-size: 14.5px; margin-bottom: 16px; }
  .lnas__price-num { font-size: 42px; }
  .lnas__price-currency { font-size: 17px; }
  .lnas__how-title { font-size: 16px; margin-bottom: 12px; }
  .lnas__step-text { font-size: 14.5px; }
  .lnas__cta { padding: 14px; font-size: 15.5px; }
  .lnas__cta-outline { padding: 13px; font-size: 14px; }
  .lnas__foot-inner {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
}

/* === LangTuner (колесо-тюнер языков), фиксированный dock снизу === */
.lnas__tuner-dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 20;
  background: rgba(7, 9, 15, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}
.lnas__tuner-inner {
  max-width: 480px;
  margin: 0 auto;
  box-sizing: border-box;
  padding: 10px 16px calc(12px + env(safe-area-inset-bottom));
}
.lang-tuner {
  position: relative;
  width: 100%;
  user-select: none;
  -webkit-user-select: none;
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
}
.lang-tuner__wheel {
  position: relative;
  height: 38px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: #10141d;
  cursor: grab;
  touch-action: none;
}
.lang-tuner__wheel:active { cursor: grabbing; }
.lang-tuner__ridges {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0px, rgba(255, 255, 255, 0) 3px,
    rgba(255, 255, 255, 0.22) 3px, rgba(255, 255, 255, 0.22) 4px,
    rgba(0, 0, 0, 0.55) 4px, rgba(0, 0, 0, 0.55) 5px,
    rgba(255, 255, 255, 0) 5px, rgba(255, 255, 255, 0) 7px
  );
}
.lang-tuner__vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(7,9,15,0.95) 0%, rgba(7,9,15,0) 22%, rgba(7,9,15,0) 78%, rgba(7,9,15,0.95) 100%),
    linear-gradient(180deg, rgba(255,255,255,0.08) 0%, rgba(0,0,0,0) 40%, rgba(0,0,0,0.45) 100%);
}
.lang-tuner__needle {
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 100%;
  background: #00FFAA;
  box-shadow: 0 0 8px rgba(0, 255, 170, 0.6);
  transform: translateX(-1px);
  pointer-events: none;
}
.lang-tuner__pills {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
}
.lang-tuner__pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  padding: 0 4px;
  border-radius: 7px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.03);
  color: #A7B4C9;
  font: 500 12px/1 ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  cursor: pointer;
  text-decoration: none;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}
.lang-tuner__pill.is-hover {
  color: #EDF1F7;
  background: rgba(0, 255, 170, 0.08);
  border-color: rgba(0, 255, 170, 0.30);
}
.lang-tuner__pill.is-active {
  color: #00FFAA;
  background: rgba(0, 255, 170, 0.10);
  border-color: rgba(0, 255, 170, 0.40);
}