*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-family);font-size:16px;line-height:1.6;
  color:var(--text);background:var(--paper);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
[hidden]{display:none!important}
::selection{background:var(--brand-blue);color:#fff}
:focus-visible{outline:2px solid var(--brand-blue);outline-offset:3px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* Раскладка */
.container{width:min(var(--container-width),calc(100% - var(--page-gutter)*2));margin-inline:auto}
.section{padding-block:var(--section-space)}
.section-tint{background:var(--paper-2)}
.section-dark{background:var(--ink);color:#fff;color-scheme:dark}
.section-heading{display:flex;flex-direction:column;gap:14px;max-width:760px;margin-bottom:48px}
.section-dark .section-heading .lead{color:rgba(255,255,255,.66)}

/* Типографика */
h1,h2,h3{font-family:var(--font-display);font-weight:700;letter-spacing:var(--tracking-tight);line-height:1.1;text-wrap:balance}
h1{font-size:var(--fs-h1);line-height:1.05;font-weight:750}
h2{font-size:var(--fs-h2);line-height:1.1;font-weight:720}
h3{font-size:var(--fs-h3);line-height:1.28;letter-spacing:-.02em;font-weight:680}
p{text-wrap:pretty}
.lead{font-size:var(--fs-lead);line-height:1.55;color:var(--text-2);max-width:660px}
.section-dark .lead{color:rgba(255,255,255,.66)}

/* Подпись секции: мелкая строка с точкой цветов логотипа вместо пилюли */
.badge{
  display:inline-flex;align-items:center;gap:9px;
  font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);line-height:1;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gradient-brand);flex:none}
.badge-dark{color:rgba(255,255,255,.6)}

/* Кнопки */
.button{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--radius-button);
  font-size:15px;font-weight:600;letter-spacing:-.01em;white-space:nowrap;
  transition:background-color var(--transition),border-color var(--transition),color var(--transition),box-shadow var(--transition);
}
.button-primary{background:var(--ink);color:#fff;border:1px solid transparent}
.button-primary:hover{background:var(--ink-3)}
.button-primary:active{background:#000}
.button-primary:disabled,.button-primary[aria-disabled="true"]{background:var(--paper-3);color:var(--muted-2);cursor:not-allowed}
.button-secondary{background:var(--paper);color:var(--text);border:1px solid var(--line-strong)}
.button-secondary:hover{border-color:var(--text);}
.button-dark{background:#fff;color:var(--ink);border:1px solid transparent}
.button-dark:hover{background:#e9edf5}
.hero .button-secondary,.section-dark .button-secondary{background:transparent;border-color:var(--line-strong);color:var(--text)}
.hero .button-secondary:hover{border-color:var(--text)}
.section-dark .button-secondary{border-color:rgba(255,255,255,.22);color:#fff}
.section-dark .button-secondary:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.5)}
.section-dark .button-primary{background:#fff;color:var(--ink);border-color:transparent}
.section-dark .button-primary:hover{background:#e9edf5}
.hero-copy>.button{align-self:flex-start}
.action-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px}

/* Шапка: светлая по умолчанию, тёмный вариант — только если страница просит тему dark */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:saturate(150%) blur(14px);-webkit-backdrop-filter:saturate(150%) blur(14px);
  border-bottom:1px solid var(--line);
  color:var(--text);
}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:inline-flex;align-items:center;flex:none}
.brand img{height:34px;width:auto}
/* brand-dark — тёмный логотип для светлого фона, brand-light — белый для тёмного */
.brand-dark{display:block}
.brand-light{display:none}
.main-navigation{display:flex;align-items:center;gap:24px;margin-left:auto}
.main-navigation a{font-size:14.5px;font-weight:500;color:var(--text-2);transition:color var(--transition)}
.main-navigation a:hover{color:var(--text)}
.main-navigation .button-primary{color:#fff}
.main-navigation .button-primary:hover{color:#fff}
.main-navigation .button-secondary{background:var(--paper);border-color:var(--line-strong);color:var(--text)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:6px}
.header-actions .button{min-height:42px;padding-inline:16px;font-size:14px}
.header-actions .button-secondary{background:transparent;border-color:var(--line-strong);color:var(--text)}
.header-actions .button-secondary:hover{border-color:var(--text);background:transparent}
.lp-header{background:rgba(255,255,255,.84);backdrop-filter:saturate(160%) blur(18px);-webkit-backdrop-filter:saturate(160%) blur(18px);border-bottom:1px solid rgba(211,217,228,.65)}
.lp-header .header-inner{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;min-height:76px}
.lp-brand-group{display:inline-flex;align-items:center;gap:12px;flex:none}
.lp-header .brand img{height:36px;width:auto}
.lp-brand-tag{position:relative;display:inline-flex;align-items:center;padding:5px 10px 5px 12px;border-radius:999px;background:var(--paper-2);border:1px solid var(--line);font:700 11px/1 var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--text-2)}
.lp-brand-tag::before{content:"";width:5px;height:5px;margin-right:6px;border-radius:50%;background:var(--gradient-brand);flex:none}
.lp-header .main-navigation{justify-self:center;margin-left:0;gap:22px}
.lp-header .main-navigation>a{padding:0;font:600 13.5px/1.2 var(--font-display);letter-spacing:-.01em;color:var(--text-2);white-space:nowrap;transition:color var(--transition)}
.lp-header .main-navigation>a:hover{color:var(--text)}
.lp-header .header-actions{margin-left:0;gap:8px}
.lp-header .header-actions .button{min-height:40px;padding-inline:16px;border-radius:999px;font:600 13.5px/1 var(--font-display)}
.lp-header .header-actions .button-secondary{border-color:var(--line-strong)}
.lp-header .header-actions .button-primary{padding-inline:18px;box-shadow:0 8px 20px -10px rgba(8,13,26,.45)}
.mobile-nav-actions{display:none}
.menu-toggle{display:none;width:40px;height:40px;margin-left:auto;align-items:center;justify-content:center;flex-direction:column;gap:5px;border-radius:10px}
.menu-toggle span{display:block;width:18px;height:1.5px;background:var(--text);transition:transform var(--transition),opacity var(--transition)}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

.site-header[data-theme="dark"]{
  background:rgba(8,13,26,.88);
  border-bottom-color:rgba(255,255,255,.08);
  color:#fff;
}
.site-header[data-theme="dark"] .brand-dark{display:none}
.site-header[data-theme="dark"] .brand-light{display:block}
.site-header[data-theme="dark"] .main-navigation a{color:rgba(255,255,255,.66)}
.site-header[data-theme="dark"] .main-navigation a:hover{color:#fff}
.site-header[data-theme="dark"] .main-navigation .button-primary{background:#fff;color:var(--ink)}
.site-header[data-theme="dark"] .main-navigation .button-primary:hover{color:var(--ink)}
.site-header[data-theme="dark"] .main-navigation .button-secondary{background:transparent;border-color:rgba(255,255,255,.24);color:#fff}
.site-header[data-theme="dark"] .header-actions .button-primary{background:#fff;color:var(--ink);border-color:transparent}
.site-header[data-theme="dark"] .header-actions .button-primary:hover{background:#e9edf5}
.site-header[data-theme="dark"] .header-actions .button-secondary{background:transparent;border-color:rgba(255,255,255,.2);color:#fff}
.site-header[data-theme="dark"] .header-actions .button-secondary:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.42)}
.site-header[data-theme="dark"] .menu-toggle span{background:#fff}

/* Подвал */
.site-footer{background:var(--paper);border-top:1px solid var(--line);padding-block:56px 36px;font-size:14px;color:var(--muted)}
.site-footer .container{display:flex;flex-direction:column;gap:32px}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;gap:32px;flex-wrap:wrap}
.site-footer .brand img{height:36px}
.footer-top nav{display:grid;grid-template-columns:repeat(2,minmax(130px,auto));gap:10px 40px}
.site-footer a{transition:color var(--transition)}
.site-footer a:hover{color:var(--text)}
.site-footer .brand img{opacity:1}
.site-footer[data-theme="light"] .brand-light{display:none}
.site-footer[data-theme="light"] .brand-dark{display:block}
.footer-legal{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px;font-size:13px}
.footer-legal nav{display:flex;flex-wrap:wrap;gap:8px 22px;max-width:860px}
.company-details{font-style:normal;display:flex;flex-wrap:wrap;gap:6px 28px;font-size:12.5px;color:var(--muted-2)}
.company-details p{margin:0}
.company-details a{color:var(--muted)}

/* Переключатель тарифов */
.tabs{display:inline-flex;gap:2px;padding:4px;background:var(--paper-3);border-radius:12px;margin-bottom:32px}
.tabs button{padding:9px 16px;border-radius:9px;font-size:14px;font-weight:500;color:var(--muted);transition:background-color var(--transition),color var(--transition),box-shadow var(--transition)}
.tabs button:hover{color:var(--text)}
.tabs button[aria-selected="true"]{background:var(--paper);color:var(--text);font-weight:600;box-shadow:var(--shadow-xs)}

/* Пропуск навигации */
.skip-link{position:fixed;top:8px;left:8px;z-index:200;padding:12px 18px;border-radius:10px;background:#fff;color:var(--ink);font-size:14px;font-weight:600;transform:translateY(-160%);transition:transform var(--transition)}
.skip-link:focus{transform:none}

/* Диалоги */
dialog:not([open]){display:none!important}
dialog{border:0;padding:0;background:transparent;color:var(--text);max-width:none;max-height:none}
dialog::backdrop{background:rgba(8,13,26,.66);backdrop-filter:blur(4px)}
.dialog-close{
  position:absolute;top:14px;right:14px;z-index:3;width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;font-size:20px;line-height:1;
  background:rgba(255,255,255,.94);color:var(--ink);border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.dialog-close:hover{background:#fff}
.image-dialog{position:relative;background:var(--paper);border-radius:var(--radius-panel);padding:12px;box-shadow:var(--shadow-lg)}
.image-dialog>img{max-height:86vh;width:auto;border-radius:12px}
.action-dialog{position:relative;width:min(480px,calc(100vw - 32px));background:var(--paper);border-radius:var(--radius-panel);padding:36px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:14px}
.action-dialog h2{font-size:26px;max-width:360px}
.action-dialog p{color:var(--muted);font-size:15px;line-height:1.55}
.action-dialog .button{margin-top:6px;align-self:flex-start}
.legal-content a{color:var(--brand-blue);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:2px}
.legal-content a:hover{text-decoration:none}
.auth-dialog .dialog-close{position:sticky;top:10px;float:right;margin:10px 10px -54px 0;right:auto;z-index:3}
body:has(dialog[open]){overflow:hidden}

/* Служебный подзаголовок страниц тарифов и партнёров */
.hero-sublead{font-size:16px;line-height:1.55;color:var(--text-2);max-width:660px}