:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --text: #e8edf2;
  --muted: #9aa7b3;
  --primary: #56a0ff;
  --primary-2: #00e5a8;
  --glass: rgba(255,255,255,0.06);
  --glass-brd: rgba(255,255,255,0.18);
  --radius: 14px;
  --mx: 0px; /* mouse parallax X */
  --my: 0px; /* mouse parallax Y */
}

/* Base */
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 15px/1.6 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}
body.no-scroll { overflow: hidden; }

/* Background glows */
body::before, body::after {
  content: "";
  position: fixed; inset: -20vmax; pointer-events: none; z-index: -2;
  filter: blur(60px) saturate(120%);
  transform: translate(calc(var(--mx) * 0.03), calc(var(--my) * 0.03)) scale(1.05);
  transition: transform 0.2s ease-out;
}
body::before {
  background:
    radial-gradient(40vmax 40vmax at 20% 20%, rgba(86,160,255,0.35), transparent 60%),
    radial-gradient(30vmax 30vmax at 80% 10%, rgba(0,229,168,0.28), transparent 60%),
    radial-gradient(45vmax 45vmax at 60% 70%, rgba(86,160,255,0.22), transparent 65%),
    linear-gradient(120deg, #0b0f14 0%, #0a0d12 40%, #0b0f14 100%);
}
body::after {
  background:
    radial-gradient(20vmax 20vmax at 70% 40%, rgba(86,160,255,0.25), transparent 60%),
    radial-gradient(16vmax 16vmax at 30% 75%, rgba(0,229,168,0.22), transparent 60%);
  mix-blend-mode: screen;
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: radial-gradient(200px 160px at 50% -40px, rgba(86,160,255,0.2), transparent 70%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.site-header .wrap {
  max-width: 1200px; margin: 0 auto; padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand {
  display: inline-grid; place-items: center;
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(180deg, rgba(86,160,255,0.35), rgba(0,229,168,0.25));
  color: white; text-decoration: none; font-weight: 700; letter-spacing: 0.5px;
  border: 1px solid rgba(255,255,255,0.2);
}
.nav { display: flex; gap: 18px; align-items: center; }
.nav a { color: var(--text); text-decoration: none; opacity: 0.9; }
.nav a:hover { opacity: 1; color: white; }

/* Hero */
.hero { padding: clamp(48px, 10vw, 120px) 0 40px; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.hero .wrap { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
.hero h1 {
  font-size: clamp(36px, 7vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  text-shadow: 0 8px 40px rgba(86,160,255,0.12);
}
.lede { font-size: clamp(16px, 2.2vw, 20px); color: var(--muted); max-width: 34ch; margin-bottom: 20px; }
.cta { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }

/* Optional badge */
.hero-badge { display: flex; justify-content: flex-end; }
.badge {
  position: relative; width: 200px; height: 200px; display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(6px);
}
.badge-ring {
  position: absolute; inset: -10px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(86,160,255,0.4), rgba(0,229,168,0.35), rgba(86,160,255,0.4));
  filter: blur(16px); opacity: 0.8;
}
.badge-inner { text-align: center; font-size: 12px; letter-spacing: 1px; color: var(--muted); }
.badge-inner strong { display: block; font-size: 28px; color: #fff; margin-top: 6px; }

/* Card */
.card-section { padding: 32px 0 80px; }
.card {
  max-width: 820px; margin: 0 auto;
  padding: 24px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--glass), rgba(255,255,255,0.04));
  border: 1px solid var(--glass-brd);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
  backdrop-filter: blur(10px);
}
.card h2, .card h3 { margin: 0 0 12px; letter-spacing: -0.01em; }

/* Form */
label { display: block; margin: 10px 0 6px; color: var(--muted); }

textarea, input, select {
  width: 100%;
  height: 40px;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color: #fff;
  font: inherit;
  outline: none;
}
textarea { height: auto; min-height: 160px; padding: 12px 14px; }
textarea:focus, input:focus, select:focus {
  border-color: rgba(86,160,255,0.6);
  box-shadow: 0 0 0 3px rgba(86,160,255,0.18) inset;
}

/* Select dropdown readability and custom arrow */
select {
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  color-scheme: dark;
  background-image:
    linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.02)),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%23E8EDF2' d='M1.41.59 6 5.17 10.59.59 12 2l-6 6-6-6z'/></svg>");
  background-repeat: no-repeat, no-repeat;
  background-position: right 12px center, right 12px center;
  background-size: 12px 8px, 12px 8px;
  padding-right: 36px;
}
select::-ms-expand { display: none; }
option, optgroup { background-color: #0f141a; color: #e8edf2; }
select option:hover { background-color: rgba(86,160,255,0.22); }
select option:checked { background-color: rgba(86,160,255,0.38); color: #fff; }

/* Grid */
.form-grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(3, minmax(180px, 1fr));
  align-items: end;
}
.form-item { min-width: 0; }

/* Checkbox alignment */
.form-check {
  display: inline-flex; align-items: center; gap: 10px; margin: 0; cursor: pointer; user-select: none;
  align-self: end; height: 40px;
}
.form-check input { width: 18px; height: 18px; margin: 0; accent-color: var(--primary); position: relative; top: 1px; }
.form-check span { color: var(--text); }

/* Button spacing */
.form-actions { margin-top: 26px; }

/* Result */
.result { margin-top: 20px; }
.link-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center; }

.hidden { display: none; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 16px; border-radius: 999px; border: 1px solid transparent; cursor: pointer;
  text-decoration: none; color: #fff; background: rgba(255,255,255,0.06);
  transition: transform .06s ease, border-color .2s, box-shadow .2s, background .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: linear-gradient(180deg, rgba(86,160,255,0.9), rgba(86,160,255,0.75));
  box-shadow: 0 10px 30px rgba(86,160,255,0.35);
  border-color: rgba(255,255,255,0.14);
}
.btn-ghost { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.14); }
.btn-link { background: transparent; border-color: transparent; color: var(--muted); }
.btn-link:hover { color: #fff; }
.btn.wide { width: 100%; }

/* Info & Support (legacy) */
.info { padding: 40px 0 80px; }
.columns { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.info h3 { margin: 0 0 8px; }
.info p, .info li { color: var(--muted); }
.info ul { margin: 0; padding-left: 18px; }

/* Support footer text */
.support { padding: 18px 0 60px; }
.support-inner { display: grid; place-items: center; }
.support-text { color: var(--muted); text-align: center; }
.heart {
  --c: #ff6b8b;
  display: inline-block;
  width: 18px; height: 18px;
  margin: 0 6px;
  color: var(--c);
  animation: pulse 1.6s infinite ease-in-out;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}
.bmc {
  display: inline-flex; align-items: center; gap: 8px; margin-left: 6px;
  padding: 6px 12px; border-radius: 999px; color: #0b0f14; background: #FFDD00; text-decoration: none; font-weight: 600;
}

/* Footer */
.site-footer { border-top: 1px solid rgba(255,255,255,0.06); padding: 16px 0; background: rgba(0,0,0,0.2); }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 10px; color: var(--muted); font-size: 13px; }

/* Responsive base */
@media (max-width: 960px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-badge { justify-content: flex-start; margin-top: 24px; }
  .meta { grid-template-columns: 1fr; }
  .columns { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .form-grid { grid-template-columns: 1fr; }
}

/* === Current layout helpers for pages === */
.hero-grid { display: grid; grid-template-columns: 1.1fr 1.1fr; gap: 48px; align-items: center; }
.hero-form { width: 100%; }

/* Centered info sections and 4-up cards */
.info-block { padding: 52px 0; border-top: 1px solid rgba(255,255,255,0.06); }
.wrap.narrow { max-width: 960px; }
.center { text-align: center; }
.info-block h3 { margin: 0 0 12px; }
.info-block .muted { color: var(--muted); margin: 0 auto 18px; max-width: 60ch; }

.grid-cards {
  margin-top: 8px;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
}
.grid-cards .mini-card {
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.04);
  padding: 18px 16px;
  text-align: center;
  display: grid;
  align-content: start;
  justify-items: center;
  gap: 8px;
  min-height: 160px;
}
.mini-emoji {
  font-size: 22px; line-height: 1;
  width: 40px; height: 40px; border-radius: 999px;
  display: grid; place-items: center;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
}
.mini-card h4 { margin: 4px 0 4px; }
.mini-card p { margin: 0; color: var(--muted); }

@media (max-width: 1024px) {
  .grid-cards { grid-template-columns: repeat(2, minmax(180px, 1fr)); }
}
@media (max-width: 560px) {
  .grid-cards { grid-template-columns: 1fr; }
}

/* === Mobile toggle menu (off-canvas) === */
.nav-toggle {
  display: none;
  position: relative;
  background: none;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 8px;
  margin-left: 6px;
  z-index: 1002;
  pointer-events: auto;
}
.nav-toggle-bar {
  display: block;
  width: 28px;
  height: 3px;
  margin: 5px 0;
  background: #e8edf2;
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}
.nav-toggle.nav-open .nav-toggle-bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.nav-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle.nav-open .nav-toggle-bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.nav-backdrop { display: none; }

@media (max-width: 700px) {
  .nav {
    position: fixed;
    top: 0; right: 0;
    width: 80vw;
    max-width: 340px;
    height: 100vh;
    background: #141c23;
    box-shadow: -8px 0 28px rgba(0,0,0,0.16);
    flex-direction: column;
    gap: 0;
    padding: 60px 32px 32px 32px;
    z-index: 1001;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    display: flex;
    align-items: flex-start;
  }
  .nav.nav-open { transform: translateX(0); }

  /* Ссылки меню — на всю ширину, выравнивание текста слева */
  .nav a {
    padding: 10px 0;
    font-size: 18px;
    text-align: left;
  }

  /* Кнопка CTA — центрируем текст по вертикали/горизонтали */
  .nav .btn {
    display: inline-flex !important;        /* перекрыть display: block */
    align-items: center;                     /* вертикальное выравнивание */
    justify-content: center;                 /* горизонтальное выравнивание */
    text-align: center;                      /* на всякий случай */
    height: 48px;
    line-height: 1;                          /* исключить сдвиг по baseline */
    padding: 0 16px;                         /* симметричные отступы */
    width: 100%;                             /* полная ширина панели */
    border-radius: 12px;
    font-weight: 600;
  }

  /* Делаем .btn-ghost синей primary в мобильном меню */
  .nav .btn-ghost {
    background: linear-gradient(180deg, rgba(86,160,255,0.95), rgba(86,160,255,0.78));
    color: #fff;
    border-color: rgba(255,255,255,0.18);
    box-shadow: 0 12px 28px rgba(86,160,255,0.28);
  }
  .nav .btn-ghost:hover { filter: brightness(1.05); transform: translateY(-1px); }
  .nav .btn-ghost:active { transform: translateY(0); }

  .nav-toggle { display: inline-block; }
  .site-header .wrap { position: relative; }

  .nav-backdrop {
    display: none;
    position: fixed; inset: 0;
    background: rgba(12,18,24,0.32);
    z-index: 1000;
    transition: opacity 0.25s ease;
    opacity: 0;
  }
  .nav-backdrop.nav-open { display: block; opacity: 1; }
}

@media (min-width: 701px) {
  .nav-toggle, .nav-backdrop { display: none !important; }
  .nav {
    position: static;
    width: auto;
    height: auto;
    background: none;
    box-shadow: none;
    flex-direction: row;
    gap: 18px;
    padding: 0;
    transform: none;
    display: flex;
    align-items: center;
  }
}