/* Лендинг accm.io — бренд 1:1 из кабинета (ui/src/index.css).
   Стек: чистый CSS, без фреймворков. Скрипты — только lang.js (CSP: script-src 'self'). */

:root {
  --bg0: #05081a;
  --bg1: #0a0f2e;
  --bg2: #0d1440;
  --border-hi: rgba(90, 150, 230, .45);
  --cyan: #2ad4ee;
  --teal: #33ecc8;
  --blue: #5b8cff;
  --gold: #f5b942;
  --muted: #a9b4dd;
  --muted2: #838ec0;
  --card-bg: rgba(13, 20, 64, .5);
  --font-head: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg0);
  color: #dfe6ff;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(42, 212, 238, .3); }

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: rgba(90, 140, 230, .25); border-radius: 6px; }

/* --- Фон-слои (свечение + шумовая текстура), как в кабинете --- */
.bgglow {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(1100px 620px at 82% -8%, rgba(42, 212, 238, .16), transparent 58%),
    radial-gradient(820px 520px at 8% 110%, rgba(51, 236, 200, .10), transparent 55%),
    radial-gradient(700px 700px at 100% 100%, rgba(91, 140, 255, .10), transparent 60%),
    linear-gradient(165deg, var(--bg1) 0%, var(--bg0) 72%);
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: .035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { position: relative; z-index: 2; }

.container {
  width: min(1060px, 100% - 40px);
  margin-inline: auto;
}

/* --- Шапка --- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 0 6px;
}

.brand {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: #eaf0ff;
  text-decoration: none;
  white-space: nowrap;
}
.brand span { color: var(--cyan); }

.topbar-right { display: flex; align-items: center; gap: 10px; }

.top-login {
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--border-hi);
  background: rgba(13, 20, 64, .5);
  color: #eaf0ff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .3px;
  text-decoration: none;
  transition: border-color .15s ease, background .15s ease;
}
.top-login:hover { border-color: var(--cyan); background: rgba(42, 212, 238, .08); }

/* --- Переключатель языка (стиль LangMenu кабинета) --- */
.lang { position: relative; }

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 10px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .3px;
  color: var(--muted);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.lang-btn:hover { color: #eaf0ff; }
.lang.open .lang-btn {
  color: #eaf0ff;
  background: rgba(90, 120, 220, .14);
  border-color: var(--border-hi);
}
.lang-btn .chev { transition: transform .18s ease; opacity: .8; }
.lang.open .lang-btn .chev { transform: rotate(180deg); }

.lang-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 60;
  min-width: 176px;
  padding: 6px;
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(16, 24, 66, .98), rgba(11, 17, 48, .98));
  border: 1px solid var(--border-hi);
  box-shadow: 0 18px 40px rgba(2, 6, 24, .55), 0 0 0 1px rgba(42, 212, 238, .05);
  backdrop-filter: blur(10px);
}
.lang-panel[hidden] { display: none; }

.lang-opt {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 9px 11px;
  border: 0;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: background .12s ease, color .12s ease;
}
.lang-opt:hover { background: rgba(90, 120, 220, .12); }
.lang-opt .cc {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .5px;
  color: var(--muted2);
  min-width: 22px;
}
.lang-opt.active {
  color: #fff;
  font-weight: 600;
  background: linear-gradient(180deg, rgba(42, 212, 238, .16), rgba(42, 212, 238, .05));
  box-shadow: inset 0 0 0 1px rgba(42, 212, 238, .25);
}
.lang-opt.active .cc { color: var(--cyan); }
.lang-opt .check { margin-left: auto; color: var(--cyan); visibility: hidden; }
.lang-opt.active .check { visibility: visible; }

/* --- Hero --- */
.hero {
  padding: 46px 0 30px;
  text-align: center;
}

.hero-logo {
  width: min(76vw, 460px);
  height: auto;
  filter: drop-shadow(0 0 42px rgba(42, 212, 238, .18)) drop-shadow(0 10px 30px rgba(2, 6, 24, .55));
  animation: rise 1s cubic-bezier(.2, .7, .2, 1) both;
}
@keyframes rise {
  from { opacity: 0; transform: translateY(16px) scale(.98); }
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-logo { animation: none; }
}

.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(28px, 4.6vw, 44px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -.5px;
  color: #f2f6ff;
  margin: 26px auto 0;
  max-width: 820px;
}

.hero-sub {
  margin: 18px auto 0;
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(15px, 2vw, 17px);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 26px;
}
.hero-tags span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid rgba(90, 150, 230, .3);
  background: rgba(13, 20, 64, .45);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .4px;
}
.hero-tags span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(42, 212, 238, .8);
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 32px;
  height: 50px;
  padding: 0 32px;
  border-radius: 999px;
  background: linear-gradient(100deg, rgba(42, 212, 238, .18), rgba(91, 140, 255, .14));
  border: 1px solid rgba(42, 212, 238, .55);
  color: #eafcff;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .3px;
  text-decoration: none;
  box-shadow: 0 0 28px rgba(42, 212, 238, .14), inset 0 0 18px rgba(42, 212, 238, .06);
  transition: box-shadow .2s ease, border-color .2s ease, transform .2s ease;
}
.cta:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 42px rgba(42, 212, 238, .28), inset 0 0 22px rgba(42, 212, 238, .1);
  transform: translateY(-1px);
}
.cta svg { flex: none; }

.cta-secondary {
  height: 44px;
  padding: 0 26px;
  font-size: 15px;
}

/* --- Секции --- */
section { padding: 52px 0; }

.sec-label {
  display: block;
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 12px;
}

section h2 {
  font-family: var(--font-head);
  font-size: clamp(23px, 3.2vw, 32px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.3px;
  color: #f2f6ff;
  max-width: 720px;
}

.sec-intro {
  margin-top: 14px;
  max-width: 700px;
  color: var(--muted);
}

/* --- Стеклянная карточка --- */
.card {
  border: 1px solid var(--border-hi);
  background: var(--card-bg);
  border-radius: 16px;
  padding: 24px;
  backdrop-filter: blur(6px);
}

/* --- О продукте --- */
.about-card {
  margin-top: 24px;
  padding: 30px;
  background:
    radial-gradient(600px 300px at 90% -20%, rgba(42, 212, 238, .07), transparent 60%),
    var(--card-bg);
}
.about-card p { color: #cdd7f6; max-width: 820px; }
.about-name {
  font-family: var(--font-head);
  background: linear-gradient(100deg, var(--cyan), var(--teal) 60%, var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

/* --- Возможности платформы (grid карточек) --- */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
  margin-top: 28px;
}
.feature {
  border: 1px solid rgba(90, 150, 230, .3);
  background: var(--card-bg);
  border-radius: 14px;
  padding: 20px;
  transition: border-color .2s ease, transform .2s ease;
}
.feature:hover { border-color: var(--border-hi); transform: translateY(-2px); }
.feature .ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 11px;
  color: var(--cyan);
  background: rgba(42, 212, 238, .1);
  border: 1px solid rgba(42, 212, 238, .25);
  margin-bottom: 13px;
}
.feature p { color: #cdd7f6; font-size: 14.5px; }

/* --- Пайплайн алгоритма --- */
.algo-grid {
  display: grid;
  grid-template-columns: minmax(280px, 420px) 1fr;
  gap: 34px;
  margin-top: 30px;
  align-items: start;
}

.pipeline { display: flex; flex-direction: column; }
.pipe-step {
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--border-hi);
  background: var(--card-bg);
  border-radius: 14px;
  padding: 14px 18px;
}
.pipe-num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan);
  background: rgba(42, 212, 238, .1);
  border: 1px solid rgba(42, 212, 238, .35);
}
.pipe-step p { font-family: var(--font-head); font-weight: 600; font-size: 15px; color: #eaf0ff; }
.pipe-arrow {
  align-self: center;
  height: 26px;
  display: flex;
  align-items: center;
  color: rgba(42, 212, 238, .55);
}

.advantages {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.adv {
  border: 1px solid rgba(90, 150, 230, .3);
  background: var(--card-bg);
  border-radius: 14px;
  padding: 20px;
}
.adv h3 {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  color: var(--teal);
  margin-bottom: 8px;
}
.adv p { color: var(--muted); font-size: 14px; }

/* --- Таблицы (тарифы, партнёрка) --- */
.table-card { margin-top: 26px; padding: 8px; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 380px;
}
th, td {
  padding: 15px 18px;
  text-align: left;
  white-space: nowrap;
}
thead th {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--muted2);
  border-bottom: 1px solid rgba(90, 150, 230, .3);
}
tbody tr + tr td { border-top: 1px solid rgba(90, 150, 230, .14); }
tbody td { color: #dfe6ff; font-size: 15px; }
td.rate { color: var(--teal); font-weight: 600; font-family: var(--font-head); }
td.term { font-weight: 600; color: #eaf0ff; }
.ref-table td:not(.term) { color: var(--muted); }
.ref-table td.l1 { color: var(--teal); font-weight: 600; }

/* --- Как начать --- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 28px;
}
.step {
  border: 1px solid rgba(90, 150, 230, .3);
  background: var(--card-bg);
  border-radius: 14px;
  padding: 22px 20px;
  position: relative;
}
.step-num {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--gold);
  display: block;
  margin-bottom: 10px;
}
.step h3 {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  color: #eaf0ff;
  margin-bottom: 7px;
}
.step p { color: var(--muted); font-size: 14px; }

.start-cta { text-align: center; margin-top: 30px; }

/* --- Платежи --- */
.pay-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 26px;
}
.pay-cards .card p { color: #cdd7f6; font-size: 15px; }
.pay-cards .ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 11px;
  color: var(--blue);
  background: rgba(91, 140, 255, .1);
  border: 1px solid rgba(91, 140, 255, .3);
  margin-bottom: 13px;
}

/* --- Безопасность --- */
.sec-list {
  list-style: none;
  margin-top: 26px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.sec-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  border: 1px solid rgba(90, 150, 230, .3);
  background: var(--card-bg);
  border-radius: 14px;
  padding: 16px 18px;
  color: #cdd7f6;
  font-size: 14.5px;
}
.sec-list li svg { flex: none; margin-top: 2px; color: var(--gold); }

/* --- Контакты --- */
.contacts-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 26px;
}
.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid rgba(90, 150, 230, .3);
  background: var(--card-bg);
  border-radius: 14px;
  padding: 20px;
  text-decoration: none;
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
}
.contact-card:hover {
  border-color: var(--border-hi);
  transform: translateY(-2px);
  background: rgba(42, 212, 238, .05);
}
.contact-card .ico {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  color: var(--cyan);
  background: rgba(42, 212, 238, .1);
  border: 1px solid rgba(42, 212, 238, .25);
}
.contact-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.contact-role {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  color: #eaf0ff;
}
.contact-handle { color: var(--muted); font-size: 13.5px; overflow: hidden; text-overflow: ellipsis; }
.contact-arrow { flex: none; margin-left: auto; color: var(--muted2); transition: color .2s ease; }
.contact-card:hover .contact-arrow { color: var(--cyan); }

/* --- Футер --- */
footer {
  margin-top: 40px;
  border-top: 1px solid rgba(90, 150, 230, .18);
  padding: 30px 0 40px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-brand {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}
.footer-brand span { color: var(--cyan); }
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}
.footer-nav a {
  color: var(--muted);
  font-size: 13.5px;
  text-decoration: none;
  transition: color .15s ease;
}
.footer-nav a:hover { color: var(--cyan); }
.footer-copy { color: var(--muted2); font-size: 13px; }

/* --- Юридические страницы (terms / privacy) --- */
.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 34px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--border-hi);
  background: rgba(13, 20, 64, .5);
  color: #eaf0ff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .3px;
  text-decoration: none;
  transition: border-color .15s ease, background .15s ease;
}
.legal-back:hover { border-color: var(--cyan); background: rgba(42, 212, 238, .08); }
.legal-back svg { flex: none; }

.legal-wrap { padding: 40px 0 20px; }
.legal-head { max-width: 760px; }
.legal-head h1 {
  font-family: var(--font-head);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.4px;
  color: #f2f6ff;
}
.legal-date {
  margin-top: 10px;
  color: var(--muted2);
  font-size: 13px;
  letter-spacing: .3px;
}
.legal-note {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13.5px;
  font-style: italic;
}
.legal-note:empty { display: none; margin-top: 0; }

.legal-body {
  max-width: 760px;
  margin-top: 26px;
  padding: 32px 34px;
}
.legal-body p { color: #cdd7f6; margin-bottom: 16px; }
.legal-body p:last-child { margin-bottom: 0; }
.legal-body h2 {
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 600;
  color: var(--teal);
  margin: 30px 0 12px;
  max-width: none;
}
.legal-body h2:first-child { margin-top: 0; }
.legal-body ul {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}
.legal-body li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 8px;
  color: #cdd7f6;
}
.legal-body li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .68em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(42, 212, 238, .7);
}
.legal-body li:last-child { margin-bottom: 0; }

/* --- Адаптив --- */
@media (max-width: 860px) {
  .algo-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  section { padding: 40px 0; }
  .advantages, .pay-cards, .sec-list, .contacts-cards { grid-template-columns: 1fr; }
  .legal-body { padding: 24px 22px; }
  .brand { font-size: 13px; letter-spacing: 1.8px; }
  .top-login { display: none; } /* на мобилке хватает CTA в hero */
  th, td { padding: 12px 14px; }
}