/* ==========================================================================
   ALGA — Redesign design system
   Based on "Alga Светлый продукт v2" (light green theme).
   Mobile-first, responsive to desktop. Preserves brand: #00B368 green.
   ========================================================================== */

:root{
  --bg:#F1F4F6;
  --ink:#0f1b16;
  --ink-soft:#5a6b63;
  --ink-mute:#6a786f;
  --ink-faint:#9aa8a0;
  --green:#00B368;
  --green-deep:#00875A;
  --green-bright:#3DDC8C;
  --green-wash:#E4FBF0;
  --yellow-wash:#FFF6D6;
  --blue-wash:#E8F0FF;
  --peach-wash:#FDE4E0;
  --dark:#0f1b16;
  --dark-2:#16271f;
  --line:#E2E8E5;
  --card:#ffffff;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow-card:0 10px 24px rgba(15,27,22,0.05);
  --shadow-soft:0 8px 20px rgba(15,27,22,0.04);
  --shadow-pop:0 18px 40px rgba(15,27,22,0.09);
  --shadow-green:0 12px 26px rgba(0,179,104,0.32);
  --maxw:1120px;
  --font:'Golos Text',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}

*{box-sizing:border-box;-webkit-font-smoothing:antialiased;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.5;
}
img{max-width:100%;display:block;}
a{color:var(--green-deep);text-decoration:none;}
a:hover{color:var(--green);}
h1,h2,h3,h4,h5{letter-spacing:-0.02em;margin:0;}
p{margin:0;}

/* ---------- layout helpers ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px;}
.section{padding:44px 0;}
.section-sm{padding:28px 0;}
.center{text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--green-wash);color:var(--green-deep);
  padding:7px 13px;border-radius:999px;font-size:12px;font-weight:700;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:800;font-family:inherit;cursor:pointer;
  border:none;text-decoration:none;transition:transform .12s ease,box-shadow .12s ease,background .15s;
}
.btn:active{transform:translateY(1px);}
.btn-green{background:var(--green);color:#fff;box-shadow:var(--shadow-green);}
.btn-green:hover{background:#00c774;color:#fff;}
.btn-dark{background:var(--dark);color:#fff;}
.btn-dark:hover{background:#1a2b22;color:#fff;}
.btn-ghost{background:var(--bg);color:var(--ink);font-weight:600;}
.btn-ghost:hover{background:#e7ecee;color:var(--ink);}
.btn-pill{border-radius:999px;padding:10px 18px;font-size:13px;font-weight:700;}
.btn-block{display:flex;width:100%;}
.btn-lg{padding:17px 24px;font-size:16px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,244,242,0.92);backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(15,27,22,0.05);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:14px;}
.logo{font-weight:900;font-size:22px;letter-spacing:-0.03em;color:var(--ink);}
.logo .dot{color:var(--green);}
.nav{display:flex;align-items:center;gap:22px;}
.nav a{color:var(--ink);font-size:14px;font-weight:600;}
.nav a:hover{color:var(--green);}
.header-actions{display:flex;align-items:center;gap:12px;}
.lang{
  display:inline-flex;align-items:center;gap:5px;font-size:13px;font-weight:700;
  color:var(--ink-mute);padding:8px 12px;border-radius:999px;background:rgba(15,27,22,0.05);
}
.lang:hover{color:var(--green);}
.lang.is-active{color:var(--green-deep);background:var(--green-wash);}
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:4px;}
.burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;}
.mobile-nav{display:none;}

/* ---------- hero ---------- */
.hero{padding:26px 0 8px;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:26px;align-items:start;}
.hero h1{
  font-size:35px;line-height:1.06;font-weight:900;letter-spacing:-0.03em;margin:14px 0 12px;
}
.hero .hl{background:var(--green);color:#fff;padding:0 8px;border-radius:10px;white-space:nowrap;}
.hero .lede{font-size:17px;line-height:1.5;color:var(--ink-soft);margin-bottom:20px;max-width:520px;}
.hero-badges{display:flex;gap:14px;flex-wrap:wrap;margin-top:14px;color:var(--ink-mute);font-size:13px;font-weight:600;}

/* form / lead card */
.lead-card{background:var(--card);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-pop);}
.lead-card .t{font-size:19px;font-weight:800;margin-bottom:5px;}
.lead-card .s{font-size:13px;color:var(--ink-mute);margin-bottom:18px;}
.lead-card input{
  width:100%;padding:16px;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:#F8FAF9;font-size:15px;font-family:inherit;color:var(--ink);margin-bottom:11px;
}
.lead-card input:focus{outline:none;border-color:var(--green);}
.lead-hints{display:flex;gap:14px;margin-top:14px;justify-content:center;flex-wrap:wrap;font-size:12px;color:var(--ink-mute);font-weight:600;}

/* ---------- section titles ---------- */
.h-sec{font-size:26px;font-weight:800;letter-spacing:-0.02em;margin-bottom:8px;}
.p-sec{font-size:15px;color:var(--ink-soft);margin-bottom:22px;line-height:1.5;max-width:640px;}

/* ---------- feature cards ---------- */
.features{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.feature{background:var(--card);border-radius:20px;padding:22px;box-shadow:var(--shadow-card);}
.feature .ic{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:12px;}
.feature .t{font-size:16px;font-weight:700;margin-bottom:5px;line-height:1.25;}
.feature .d{font-size:14px;color:var(--ink-mute);line-height:1.45;}
.ic-y{background:var(--yellow-wash);}
.ic-p{background:var(--peach-wash);}
.ic-b{background:var(--blue-wash);}
.ic-g{background:var(--green-wash);}

/* wide feature (row) */
.feature-row{display:flex;gap:16px;align-items:center;}
.feature-row .ic{width:54px;height:54px;border-radius:16px;flex-shrink:0;margin-bottom:0;}
.feature-row .t{font-size:17px;}

/* ---------- calculator ---------- */
.calc{background:var(--dark);color:#fff;border-radius:26px;padding:28px;}
.calc h2{font-size:23px;font-weight:800;margin-bottom:4px;}
.calc .sub{font-size:13px;color:#8da89b;margin-bottom:20px;}
.calc-cols{display:grid;grid-template-columns:1fr;gap:26px;}
.seg{display:flex;gap:6px;background:var(--dark-2);border-radius:14px;padding:5px;margin-bottom:22px;}
.seg button{
  flex:1;text-align:center;padding:11px 6px;border-radius:10px;font-size:13px;font-weight:700;
  background:transparent;color:#8da89b;border:none;cursor:pointer;font-family:inherit;transition:all .15s;
}
.seg button.is-on{background:var(--green);color:#fff;}
.calc-row{margin-bottom:18px;}
.calc-row .lbl{display:flex;justify-content:space-between;font-size:14px;margin-bottom:9px;}
.calc-row .lbl span:first-child{color:#8da89b;}
.calc-row .lbl b{font-weight:700;color:var(--green-bright);}
.calc-out{background:var(--dark-2);border-radius:18px;padding:24px;text-align:center;}
.calc-out .cap{font-size:13px;color:#8da89b;margin-bottom:6px;}
.calc-out .big{font-size:40px;font-weight:900;color:var(--green-bright);letter-spacing:-0.03em;line-height:1;}
.calc-out .note{font-size:12px;color:#6a786f;margin-top:8px;}
.calc-out .cmp{font-size:12px;color:var(--green-bright);margin-top:6px;font-weight:600;}
.calc .fine{font-size:11px;color:#6a786f;margin-top:12px;text-align:center;}

input[type=range]{-webkit-appearance:none;appearance:none;background:transparent;width:100%;height:26px;cursor:pointer;}
input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:6px;background:#26352e;}
input[type=range]::-moz-range-track{height:6px;border-radius:6px;background:#26352e;}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:26px;height:26px;border-radius:50%;background:var(--green-bright);margin-top:-10px;box-shadow:0 2px 8px rgba(0,0,0,0.35);}
input[type=range]::-moz-range-thumb{width:26px;height:26px;border:none;border-radius:50%;background:var(--green-bright);box-shadow:0 2px 8px rgba(0,0,0,0.35);}

/* ---------- payouts / app card ---------- */
.app-card{background:var(--card);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-pop);}
.app-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;}
.app-top .lbl{font-size:13px;color:var(--ink-mute);}
.chip-online{font-size:11px;color:var(--green);background:var(--green-wash);padding:4px 9px;border-radius:999px;font-weight:600;}
.app-balance{font-size:34px;font-weight:900;letter-spacing:-0.03em;margin-bottom:16px;}
.app-actions{display:flex;gap:10px;margin-bottom:16px;}
.app-actions .a{flex:1;text-align:center;padding:14px;border-radius:14px;font-weight:700;font-size:14px;}
.app-actions .a.p{background:var(--green);color:#fff;}
.app-actions .a.s{background:var(--bg);color:var(--ink);font-weight:600;}
.store-row{display:flex;gap:10px;}
.store-row a{flex:1;text-align:center;background:var(--dark);color:#fff;padding:13px;border-radius:12px;font-size:12px;font-weight:600;}
.store-row a:hover{color:#fff;background:#1a2b22;}

/* ---------- steps ---------- */
.steps{display:flex;flex-direction:column;gap:10px;}
.step{background:var(--card);border-radius:var(--radius-md);padding:18px;display:flex;gap:14px;align-items:center;box-shadow:var(--shadow-soft);}
.step .n{width:34px;height:34px;border-radius:50%;background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0;}
.step .tx{font-size:15px;font-weight:600;}

/* ---------- brigades band ---------- */
.brigades{background:linear-gradient(150deg,var(--yellow-wash),var(--green-wash));border-radius:26px;padding:30px;}
.brigades .tag{display:inline-block;background:#fff;color:var(--green-deep);font-size:12px;font-weight:700;padding:6px 12px;border-radius:999px;margin-bottom:14px;}
.brigades h2{font-size:25px;font-weight:800;margin-bottom:10px;}
.brigades p{font-size:15px;color:#4a5b52;line-height:1.5;margin-bottom:20px;max-width:560px;}

/* ---------- final CTA ---------- */
.cta-green{background:var(--green);border-radius:26px;padding:34px 28px;color:#fff;text-align:center;}
.cta-green h2{font-size:27px;font-weight:900;letter-spacing:-0.03em;margin-bottom:8px;}
.cta-green p{font-size:15px;margin-bottom:22px;opacity:0.8;max-width:520px;margin-left:auto;margin-right:auto;}

/* ---------- article prose (SEO pages) ---------- */
.article{background:var(--card);border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow-card);}
.article h1{font-size:30px;line-height:1.12;font-weight:900;margin:0 0 18px;}
.article h2{font-size:23px;font-weight:800;margin:34px 0 12px;}
.article h3{font-size:19px;font-weight:700;margin:26px 0 10px;}
.article h4{font-size:16px;font-weight:700;margin:22px 0 8px;color:var(--ink);}
.article h5{font-size:15px;font-weight:700;margin:20px 0 8px;color:var(--ink-soft);text-transform:none;}
.article p{font-size:15px;line-height:1.62;color:#33413a;margin:0 0 12px;}
.article ul,.article ol{margin:0 0 16px;padding-left:0;list-style:none;}
.article li{position:relative;font-size:15px;line-height:1.6;color:#33413a;padding-left:26px;margin-bottom:9px;}
.article ul li::before{content:"";position:absolute;left:4px;top:9px;width:8px;height:8px;border-radius:50%;background:var(--green);}
.article ol{counter-reset:li;}
.article ol li{counter-increment:li;}
.article ol li::before{content:counter(li);position:absolute;left:0;top:0;width:20px;height:20px;font-size:11px;font-weight:800;color:#fff;background:var(--green);border-radius:50%;display:flex;align-items:center;justify-content:center;}
.article a{color:var(--green-deep);text-decoration:underline;text-underline-offset:2px;}
.article table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:14px;overflow:hidden;border-radius:12px;}
.article th{background:var(--dark);color:#fff;text-align:left;padding:12px 14px;font-weight:700;}
.article td{padding:12px 14px;border-bottom:1px solid var(--line);color:#33413a;}
.article tr:nth-child(even) td{background:#F8FAF9;}
.article .lead{font-size:17px;color:var(--ink-soft);}

.breadcrumb{font-size:13px;color:var(--ink-mute);margin-bottom:16px;display:flex;gap:8px;flex-wrap:wrap;}
.breadcrumb a{color:var(--ink-mute);}
.breadcrumb a:hover{color:var(--green);}
.breadcrumb span{color:var(--ink-faint);}

.article-hero{padding:30px 0 6px;}
.article-hero .eyebrow{margin-bottom:16px;}

/* ---------- FAQ accordion ---------- */
.faq{display:flex;flex-direction:column;gap:10px;}
.faq details{background:var(--card);border-radius:var(--radius-md);box-shadow:var(--shadow-soft);overflow:hidden;}
.faq summary{
  list-style:none;cursor:pointer;padding:18px 20px;font-size:15px;font-weight:700;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:14px;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";font-size:22px;font-weight:400;color:var(--green);flex-shrink:0;transition:transform .2s;}
.faq details[open] summary::after{transform:rotate(45deg);}
.faq .faq-body{padding:0 20px 18px;font-size:14px;line-height:1.6;color:var(--ink-soft);}

/* ---------- contact cards ---------- */
.contact-grid{display:grid;grid-template-columns:1fr;gap:14px;}
.contact-card{background:var(--card);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-card);}
.contact-card .k{font-size:13px;color:var(--ink-mute);margin-bottom:6px;}
.contact-card .v{font-size:20px;font-weight:800;}
.contact-card .v a{color:var(--ink);}
.contact-card .v a:hover{color:var(--green);}
.social-row{display:flex;gap:10px;justify-content:center;margin:16px 0;}
.social-row a{width:44px;height:44px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;box-shadow:0 6px 14px rgba(15,27,22,0.06);color:var(--ink);}
.social-row a:hover{color:var(--green);transform:translateY(-2px);transition:transform .15s;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#cfe0d7;padding:44px 0 30px;margin-top:44px;}
.site-footer .logo{color:#fff;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;margin-bottom:28px;}
.footer-grid h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:9px;}
.footer-links a{color:#9db3a8;font-size:13px;}
.footer-links a:hover{color:var(--green-bright);}
.footer-about p{font-size:13px;color:#9db3a8;line-height:1.6;margin-bottom:14px;max-width:340px;}
.footer-contacts{font-size:14px;color:#cfe0d7;line-height:1.8;}
.footer-contacts a{color:#cfe0d7;}
.footer-bottom{border-top:1px solid #22332b;padding-top:20px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;align-items:center;}
.footer-bottom .cr{font-size:12px;color:#7d928a;line-height:1.6;max-width:640px;}
.footer-bottom .seo{font-size:11px;color:#5f7268;}
.footer-bottom .seo a{color:#7d928a;}

/* ---------- sticky mobile CTA ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(241,244,246,0.92);backdrop-filter:blur(10px);border-top:1px solid rgba(15,27,22,0.06);
  display:none;
}

/* ==========================================================================
   Responsive — mobile-first refinements & desktop expansion
   ========================================================================== */
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-about{grid-column:1 / -1;}
}
@media (min-width:760px){
  .hero{padding:44px 0 10px;}
  .hero-grid{grid-template-columns:1.1fr 0.9fr;gap:40px;align-items:center;}
  .hero h1{font-size:52px;margin-top:0;}
  .hero .lede{font-size:19px;}
  .h-sec{font-size:32px;}
  .features{grid-template-columns:repeat(4,1fr);}
  .calc-cols{grid-template-columns:1fr 1fr;align-items:center;gap:34px;}
  .calc{padding:40px;}
  .calc h2{font-size:28px;}
  .steps{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
  .app-showcase{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center;}
  .brigades{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:40px;}
  .brigades .b-text{max-width:60%;}
  .article{padding:48px 56px;}
  .article h1{font-size:38px;}
  .contact-grid{grid-template-columns:repeat(3,1fr);}
}
@media (min-width:760px){
  .feature-list-2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
}
@media (max-width:759px){
  .nav{display:none;}
  .burger{display:flex;}
  .mobile-nav.is-open{display:block;position:fixed;inset:64px 0 0;z-index:55;background:var(--bg);padding:22px;overflow:auto;}
  .mobile-nav .m-links{display:flex;flex-direction:column;gap:4px;}
  .mobile-nav .m-links a{padding:14px 6px;font-size:16px;font-weight:600;color:var(--ink);border-bottom:1px solid rgba(15,27,22,0.06);}
  .content-narrow{max-width:520px;margin:0 auto;}
  body.has-sticky{padding-bottom:74px;}
  .sticky-cta{display:block;}
  .article{padding:24px;}
  .hero h1{font-size:32px;}
}

/* constrain landing content to a comfortable single column feel on mobile,
   while allowing full-width sections on desktop */
.landing .section > .wrap > .h-sec,
.landing .section > .wrap > .p-sec{max-width:640px;}