/* ===========================
   SIMPLEOS Landing — Styles (refresh 3)
   Hero тёмный; ниже — светлые секции с паттернами
   =========================== */

:root{
  --bg: rgb(26,26,26);
  --bg-soft: rgb(0,0,0);
  --panel: #111214;
  --text: #e6edf3;
  --muted:#a9b7c4;
  --line:#1f2328;
  --accent:#1ec8ff;   /* используем дозированно */
  --accent-2:#6ee7ff;
  --warn:#ffb84d;

  --radius:16px;
  --shadow-1:0 1px 0 rgba(255,255,255,0.02) inset, 0 10px 30px rgba(0,0,0,0.35);
  --shadow-2:0 10px 40px rgba(0,200,255,0.18);
  --ring:0 0 0 2px rgba(30,200,255,.15), 0 0 0 6px rgba(30,200,255,.08);

  --font-en:"Inter",system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  --font-zh:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;

  --section-pad: clamp(56px, 8vw, 96px);
  --container: min(1200px, 92vw);
  --header-h: 68px;
}

/* переключатель отображения языков в FAQ (SEO-видимы обе версии) */
html[lang="en"] .i18n-zh { display:none !important; }
html[lang="zh"] .i18n-en { display:none !important; }

*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--text);background:var(--bg);
  font-family:var(--font-en),var(--font-zh);line-height:1.6;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale
}
section{scroll-margin-top:calc(var(--header-h) + 16px)}
.visually-hidden{position:absolute;width:0;height:0;overflow:hidden}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:40;
  backdrop-filter:saturate(1.2) blur(10px);
  background:linear-gradient(to bottom, rgba(0,0,0,.85), rgba(0,0,0,.35));
  border-bottom:1px solid #161a1f;
}
.header-inner{
  width:var(--container);margin:0 auto;
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;
  gap:18px;padding:12px 12px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none}
.brand .logo{width:28px;height:32px;color:var(--text)}
.wordmark{font-weight:800;letter-spacing:.08em}

.nav{display:flex;justify-content:center;gap:22px}
.nav-link{
  color:#c6d2dd;text-decoration:none;font-weight:600;font-size:.95rem;
  position:relative;padding:10px 4px
}
.nav-link:after{
  content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;
  background:linear-gradient(90deg, rgba(255,255,255,.0), rgba(30,200,255,.5), rgba(255,255,255,.0));
  transform:translateX(-50%);transition:width .18s ease
}
.nav-link:hover{color:#fff}
.nav-link:hover:after{width:70%}

.header-cta{display:flex;gap:10px;align-items:center}

/* Кнопки */
.btn{
  --b1:#0b0d10;--b2:#0e1116;
  --bd:rgba(255,255,255,.12);
  background:linear-gradient(180deg,var(--b1),var(--b2));
  color:#eaf1f7;border:1px solid var(--bd);
  padding:10px 16px;border-radius:14px;font-weight:700;letter-spacing:.01em;
  cursor:pointer;box-shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 6px 16px rgba(0,0,0,.35);
  transition:transform .08s ease,border-color .15s ease,box-shadow .15s ease;
  text-decoration:none; /* убрать подчёркивания у ссылок-кнопок */
}
.btn:hover{transform:translateY(-1px);border-color:rgba(255,255,255,.22)}
.btn:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:#222a30;color:#b7c5d3}
.btn-ghost:hover{color:#fff;border-color:#2a333b}
.btn-primary{
  background:linear-gradient(180deg, rgba(30,200,255,.18), rgba(30,200,255,.1));
  border-color:rgba(30,200,255,.45);
  box-shadow:0 10px 40px rgba(0,200,255,.18), inset 0 1px 0 rgba(255,255,255,.12)
}
.btn-primary:hover{box-shadow:0 14px 46px rgba(0,200,255,.26)}
.btn-outline{
  background:transparent;border-color:#2a333b;color:#d6e2ee;text-decoration:none
}
.btn-outline:hover{border-color:#3a4652;color:#fff}
.btn-lg{padding:14px 22px;font-size:1.05rem}
.btn.small{padding:6px 10px;font-size:.85rem}
.badge-link{text-decoration:none}

/* ===== Hero (100% высоты) ===== */
.hero{
  position:relative;display:grid;place-items:center;
  min-height:calc(100svh - var(--header-h));
  padding:clamp(32px,4vw,48px) 0 var(--section-pad);
  isolation:isolate;
}
.hero-inner{width:var(--container);text-align:center}
.bg{position:absolute;inset:0;overflow:hidden;z-index:-2}
#bg-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;opacity:.28}
/* маленькое пятно под курсором */
.grad{
  position:absolute;inset:-20% -20% -20% -20%;
  background:radial-gradient(500px 340px at var(--mx,50%) var(--my,40%), rgba(30,200,255,.14), transparent 70%);
  transition:background .2s linear;pointer-events:none
}
/* изогнутые «зебро» линии */
.zebra{
  position:absolute;inset:-14% -14%;
  background:repeating-linear-gradient(108deg, rgba(8,10,12,.55) 0 14px, rgba(8,10,12,0) 14px 46px);
  filter:url(#wavy); /* SVG filter from HTML */
  opacity:.26;mix-blend-mode:multiply;
  mask-image:radial-gradient(1400px 900px at 50% 40%, black, transparent 74%);
}
.cursor-glow{
  position:fixed;width:110px;height:110px;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle at center, rgba(30,200,255,.16), rgba(30,200,255,0) 65%);
  mix-blend-mode:screen;transform:translate(-50%,-50%);opacity:0;transition:opacity .25s;z-index:50
}

/* EOS icon larger + parallax */
.hero-eos{width:clamp(180px, 22vw, 260px);margin:0 auto 12px;filter:drop-shadow(0 10px 44px rgba(255,255,255,.08));transition:transform .08s linear;will-change:transform}
.hero-eos svg{display:block;width:100%;height:auto}

.hero-badge{
  display:inline-flex;align-items:center;gap:10px;padding:8px 14px;border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.02);border-radius:999px;box-shadow:var(--shadow-1)
}
.hero-badge .dot{width:8px;height:8px;background:var(--warn);border-radius:50%;box-shadow:0 0 0 6px rgba(255,184,77,.15)}
.badge-link{color:#fff}

.hero-title{margin:16px 0 12px;font-size:clamp(34px,6vw,70px);font-weight:800;letter-spacing:.02em}
.hero-title .thin{font-weight:300;color:var(--muted)}
.hero-title .strong{color:#fff;text-shadow:0 8px 40px rgba(255,255,255,.06)}
.hero-lead{width:min(760px,92vw);margin:16px auto 26px;color:#cfd9e2;font-size:clamp(16px,1.7vw,20px)}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:8px}
.hero-notes{margin-top:22px;color:var(--muted);display:flex;gap:10px;justify-content:center;font-size:.95rem}

/* ===== Светлые секции ===== */
.section{padding:var(--section-pad) 0}
.container{width:var(--container);margin:0 auto}
.section-lead{color:#c5cfd9;margin-top:-6px;margin-bottom:22px}

.section.light{
  --text:#202833; --muted:#5b6b7c; --line:#e6eaf0; --panel:#ffffff;
  color:var(--text);background:#f7f8fa;position:relative
}
.section.light.pattern-grid::before,
.section.light.pattern-dots::before,
.section.light.pattern-diag::before,
.section.light.pattern-cross::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.08;mix-blend-mode:normal
}
.section.light.pattern-grid::before{
  background:
    linear-gradient(transparent 0 30%, #000 30% 31%, transparent 31% 100%) 0 0/100% 22px,
    linear-gradient(90deg, transparent 0 30%, #000 30% 31%, transparent 31% 100%) 0 0/22px 100%;
  mask-image:linear-gradient(to bottom, transparent 0 10%, black 10% 80%, transparent 90% 100%),
             radial-gradient(800px 500px at 10% 10%, black, transparent 70%);
}
.section.light.pattern-dots::before{
  background:radial-gradient(#000 1px, transparent 1.2px) 0 0/18px 18px;
  mask-image:linear-gradient(to bottom, transparent, black 20% 80%, transparent),
             radial-gradient(600px 420px at 85% 20%, black, transparent 65%);
}
.section.light.pattern-diag::before{
  background:repeating-linear-gradient(135deg, #000 0 1px, transparent 1px 16px);
  mask-image:linear-gradient(to bottom, transparent, black 18% 70%, transparent)
}
.section.light.pattern-cross::before{
  background:
    linear-gradient(#000 1px, transparent 1px) 0 0/18px 18px,
    linear-gradient(90deg,#000 1px, transparent 1px) 0 0/18px 18px;
  mask-image:radial-gradient(800px 560px at 100% 70%, black, transparent 90%)
}
.section.light .section-lead{color:#4c5b6a}
.section.light a{color:#006d8f}

/* ===== Download ===== */
.downloads h2, .features h2, .about h2, .transparency h2, .newsletter h2, .faq h2{font-size:clamp(24px,3.5vw,36px);margin:0 0 8px}
/* шире карточки: 3 в ряд на десктопе */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
@media (max-width:960px){.dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.dl-grid{grid-template-columns:1fr}}

.dl-card{
  display:grid;grid-template-columns:64px 1fr auto;align-items:center;gap:16px;padding:18px;border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(255,255,255,.9), rgba(255,255,255,.86));
  border:1px solid var(--line);text-decoration:none;color:var(--text);box-shadow:0 4px 18px rgba(0,0,0,.06)
}
.section.light .dl-card:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(0,0,0,.08)}
.dl-card.recommended{outline:3px solid rgba(30,200,255,.25);box-shadow:0 12px 36px rgba(0,200,255,.16)}
.dl-icon img{width:56px;height:56px;object-fit:contain;display:block}
.dl-title{font-weight:800}
.dl-meta{color:var(--muted);font-size:.95rem}
.dl-action{
  background:rgba(30,200,255,.08);border:1px solid rgba(30,200,255,.35);color:#007ea0;
  padding:6px 12px;border-radius:999px;font-weight:800
}

/* Verify (акцентная обводка) */
.hashes{margin-top:18px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
.hashes summary{cursor:pointer;padding:14px 16px}
.hashes-inner{padding:0 16px 16px;color:#334155}
.code{
  background:#0a0e12;color:#d9f4ff;border:1px dashed rgba(30,200,255,.45);
  border-radius:10px;padding:12px;overflow-x:auto
}

/* Заголовки с иконками */
.h-with-icon{display:flex;align-items:center;gap:10px;margin:0 0 6px}
.hicon{width:22px;height:22px;color:var(--text);opacity:.9;display:inline-flex}
.hicon svg{width:100%;height:100%}
.reqs{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px}
@media (max-width:800px){.reqs{grid-template-columns:1fr}}
.reqs .req-card{padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}

/* ===== Features ===== */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:1000px){.feat-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.feat-grid{grid-template-columns:1fr}}

.feat{padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.feat-head{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.feat-icon{width:22px;height:22px;color:#0b1520;opacity:.9;display:inline-flex}
.feat-icon svg{width:100%;height:100%}
.micro-list{margin:10px 0 0;padding-left:18px;color:#5b6b7c}
.pillbar{margin-top:10px;display:flex;gap:8px;flex-wrap:wrap}
.pill{font-size:.8rem;border:1px solid #e6eaf0;border-radius:999px;padding:4px 8px;background:#f7fafc}

/* ===== About ===== */
.about-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:20px}
@media (max-width:900px){.about-grid{grid-template-columns:1fr}}
.about-card{padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.checks{list-style:none;padding:0;margin:0}
.checks li{margin:10px 0;position:relative;padding-left:28px}
.checks li::before{
  content:"";position:absolute;left:0;top:8px;width:16px;height:16px;border-radius:50%;
  background:radial-gradient(circle at 40% 40%, var(--accent-2), var(--accent));
  box-shadow:0 0 0 4px rgba(30,200,255,.12)
}

/* ===== Transparency ===== */
.trans-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media (max-width:1100px){.trans-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.trans-grid{grid-template-columns:1fr}}
.trans-card{padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.trans-head{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.trans-icon{width:22px;height:22px;color:#0b1520;opacity:.9;display:inline-flex}
.trans-icon svg{width:100%;height:100%}
.trans-card.tone-1{border-left:3px solid rgba(30,200,255,.35)}
.trans-card.tone-2{border-left:3px solid rgba(255,184,77,.35)}
.trans-card.tone-3{border-left:3px solid rgba(166,255,178,.35)}
.trans-card.tone-4{border-left:3px solid rgba(200,200,255,.35)}

/* ===== Newsletter ===== */
.newsletter .nl-wrap{padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.nl-form{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.input{position:relative;flex:1 1 320px}
.input input{width:100%;background:transparent;border:none;color:#0f1720;padding:14px 4px 10px;font:inherit;outline:none}
.input label{position:absolute;left:4px;top:10px;color:#5b6b7c;pointer-events:none;transition:transform .18s,color .18s,opacity .18s}
.input-underline{display:block;height:2px;width:100%;background:linear-gradient(90deg, #d6dae0, #d6dae0);position:relative;overflow:hidden}
.input-underline::after{content:"";position:absolute;left:var(--ux,0%);top:0;width:18%;height:100%;background:linear-gradient(90deg, rgba(30,200,255,.8), rgba(30,200,255,0));transform:translateX(-50%);transition:left .12s linear}
.input input:focus + label, .input input:not(:placeholder-shown) + label{transform:translateY(-18px) scale(.92);color:#007ea0}
.nl-small{color:#5b6b7c;margin:8px 0 0;font-size:.95rem}
/* сделать кнопку контрастнее на белом фоне */
.section.light .btn-primary{
  background:linear-gradient(180deg, #0c6a84, #06485a);
  border-color:#0aa3c7;
  color:#fff;
  box-shadow:0 10px 26px rgba(0, 110, 140, .28), inset 0 1px 0 rgba(255,255,255,.12)
}

/* ===== FAQ ===== */
.faq-controls{margin:8px 0 14px}
#faq-search{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:#fff;color:#0f1720}
.accordion details{border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin:10px 0;background:#fff}
.accordion summary{cursor:pointer;font-weight:800;outline:none}
.accordion .ans{color:#374151;margin-top:8px}

/* ===== Footer ===== */
.site-footer{border-top:1px solid #161a1f;padding-top:24px;background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(0,0,0,.02));color:#dbe4ec}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 2fr;gap:18px;width:var(--container);margin:0 auto}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}
.foot-brand{display:flex;align-items:center;gap:12px}
.logo.small{width:30px;color:#fff}
.foot-col h4{margin:0 0 6px}
.foot-col ul{list-style:none;padding:0;margin:0}
.foot-col li{margin:8px 0}
.foot-col a{color:#e6edf3;text-decoration:none}
.foot-col a:hover{color:#98def5}
.foot-legal{color:#a9b7c4}
.company{color:#a9b7c4}
.foot-bottom{
  border-top:1px solid #161a1f;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 12px; /* добавил горизонтальные отступы */
  margin-top:16px;width:var(--container)
}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s, transform .5s}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ===== Focus ===== */
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:10px}

/* ===== Chinese font fallback ===== */
:lang(zh){font-family:var(--font-zh),var(--font-en)}