/* ============================================================
   BuhKontrol — Design System :: base.css
   Tokens, reset, typography, buttons, header, footer
   Aesthetic: Stripe / Mercury light. Type: Geist + Geist Mono.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;450;500;600;700&family=Geist+Mono:wght@400;500;600&display=swap');

/* ---------- Tokens ---------- */
:root{
  /* Brand accent — overridable by Tweaks */
  --brand:        #2f56f0;
  --brand-600:    #2647d6;
  --brand-700:    #1d39b4;
  --brand-50:     #eef1ff;
  --brand-100:    #e1e7ff;
  --brand-200:    #c6d1ff;
  --brand-ink:    #1b2a6b;   /* accent text on light */
  --btn-ink:      #0c1322;   /* primary button bg in "graphite" mode */
  --on-brand:     #ffffff;

  /* Status (financial) */
  --ok:#0c9a66;     --ok-bg:#e6f6ef;   --ok-line:#bfe8d4;
  --warn:#b07203;   --warn-bg:#fdf3dc;  --warn-line:#f1dda8;
  --danger:#d83f3f; --danger-bg:#fdebeb;--danger-line:#f5cccc;

  /* Neutrals — cool, Mercury-like */
  --bg:#fbfbfd;
  --surface:#ffffff;
  --surface-2:#f6f7f9;
  --surface-3:#f0f2f6;
  --ink:#0c1322;
  --ink-2:#39414f;
  --muted:#6b7280;
  --faint:#9aa1ae;
  --line:#e8eaf0;
  --line-2:#f0f1f5;
  --line-strong:#dcdfe7;

  /* Radii */
  --r-xs:7px; --r-sm:10px; --r-md:14px; --r-lg:18px; --r-xl:24px; --r-pill:999px;

  /* Shadows — layered, subtle */
  --sh-xs: 0 1px 2px rgba(16,24,40,.05);
  --sh-sm: 0 1px 2px rgba(16,24,40,.05), 0 1px 3px rgba(16,24,40,.06);
  --sh-md: 0 2px 4px -1px rgba(16,24,40,.06), 0 6px 16px -6px rgba(16,24,40,.10);
  --sh-lg: 0 12px 28px -10px rgba(16,24,40,.18), 0 4px 10px -6px rgba(16,24,40,.10);
  --sh-xl: 0 28px 60px -20px rgba(16,24,40,.28), 0 10px 24px -12px rgba(16,24,40,.14);
  --ring: 0 0 0 4px var(--brand-100);

  --container: 1200px;
  --nav-h: 68px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Geist","Inter",system-ui,-apple-system,Segoe UI,sans-serif;
  background:var(--bg);
  color:var(--ink-2);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  font-feature-settings:"cv01","ss01","tnum" 0;
}
h1,h2,h3,h4,p,figure{margin:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
img,svg{display:block;max-width:100%}
ul{margin:0;padding:0;list-style:none}
::selection{background:var(--brand-200);color:var(--ink)}
.mono{font-family:"Geist Mono",ui-monospace,monospace;font-feature-settings:"tnum"}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- Layout ---------- */
.container{max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:104px 0}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin:0 0 52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  color:var(--brand-ink);
}
.eyebrow::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px var(--brand-100);
}
.eyebrow.muted{color:var(--muted)}
.eyebrow.muted::before{background:var(--faint);box-shadow:0 0 0 4px var(--surface-3)}

/* ---------- Typography ---------- */
h1,h2,h3,h4{color:var(--ink);font-weight:600;letter-spacing:-.02em;line-height:1.08;text-wrap:balance}
.display{font-size:clamp(44px,4.6vw,64px);font-weight:600;letter-spacing:-.028em;line-height:1.03}
.h2{font-size:clamp(30px,3vw,42px);letter-spacing:-.02em;line-height:1.07}
.h3{font-size:21px;letter-spacing:-.012em;line-height:1.2}
.h4{font-size:17px;font-weight:600;letter-spacing:-.006em}
.lead{font-size:19px;line-height:1.55;color:var(--ink-2);text-wrap:pretty}
.muted{color:var(--muted)}
.faint{color:var(--faint)}
.small{font-size:14px}
.xsmall{font-size:12.5px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:550;letter-spacing:-.005em;white-space:nowrap;
  transition:transform .15s var(--ease), background .15s, box-shadow .2s, border-color .15s;
}
.btn:active{transform:translateY(1px)}
.btn-lg{height:52px;padding:0 26px;font-size:16px}
.btn-sm{height:38px;padding:0 15px;font-size:14px;border-radius:var(--r-xs)}
.btn-primary{background:var(--brand);color:var(--on-brand);box-shadow:var(--sh-sm), inset 0 1px 0 rgba(255,255,255,.18)}
.btn-primary:hover{background:var(--brand-600);box-shadow:var(--sh-md)}
.btn-ink{background:var(--ink);color:#fff;box-shadow:var(--sh-sm)}
.btn-ink:hover{background:#1b2436;box-shadow:var(--sh-md)}
.btn-ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line-strong);box-shadow:var(--sh-xs)}
.btn-ghost:hover{border-color:#c7ccd8;background:#fff;box-shadow:var(--sh-sm)}
.btn-soft{background:var(--brand-50);color:var(--brand-ink)}
.btn-soft:hover{background:var(--brand-100)}
.btn-link{height:auto;padding:0;color:var(--brand-ink);font-weight:550}
.btn-link .arr{transition:transform .2s var(--ease)}
.btn-link:hover .arr{transform:translateX(4px)}
.btn .ico{width:17px;height:17px}

/* ---------- Pills / badges / chips ---------- */
.pill{display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;font-weight:550;background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line)}
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 9px;border-radius:7px;font-size:12px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor}
.badge-ok{background:var(--ok-bg);color:var(--ok);border:1px solid var(--ok-line)}
.badge-warn{background:var(--warn-bg);color:var(--warn);border:1px solid var(--warn-line)}
.badge-danger{background:var(--danger-bg);color:var(--danger);border:1px solid var(--danger-line)}
.badge-brand{background:var(--brand-50);color:var(--brand-ink);border:1px solid var(--brand-100)}
.chip{display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 15px;border-radius:var(--r-pill);font-size:14px;font-weight:500;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);transition:.15s}
.chip:hover{border-color:var(--brand-200);color:var(--ink)}
.chip[aria-selected="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(251,251,253,.82);backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid transparent;transition:border-color .2s, background .2s}
.site-header.scrolled{border-color:var(--line);background:rgba(251,251,253,.9)}
.nav{display:flex;align-items:center;gap:22px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:600;letter-spacing:-.02em;color:var(--ink);font-size:18px}
.brand .logo{width:34px;height:34px;flex:0 0 auto}
.brand b{font-weight:600}
.brand .accent{color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:4px}
.nav-link{display:inline-flex;align-items:center;gap:5px;height:38px;padding:0 12px;border-radius:var(--r-xs);font-size:14.5px;font-weight:500;color:var(--ink-2);transition:.15s;white-space:nowrap}
.nav-link:hover{color:var(--ink);background:var(--surface-2)}
.nav-link .caret{width:14px;height:14px;color:var(--faint);transition:transform .2s}
.nav-item{position:relative}
.nav-item.open .nav-link{color:var(--ink);background:var(--surface-2)}
.nav-item.open .caret{transform:rotate(180deg)}
.nav-spacer{flex:1}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-phone{font-weight:550;color:var(--ink);font-size:14.5px;white-space:nowrap}

/* Mega menu */
.mega{position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(6px);width:720px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-xl);padding:18px;opacity:0;visibility:hidden;transition:.2s var(--ease);z-index:70}
.nav-item.open .mega{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.mega.wide{width:860px}
.mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.mega-grid.three{grid-template-columns:1fr 1fr 1fr}
.mega-link{display:flex;gap:12px;padding:11px 12px;border-radius:var(--r-sm);transition:.15s}
.mega-link:hover{background:var(--surface-2)}
.mega-ico{width:38px;height:38px;flex:0 0 auto;border-radius:10px;display:grid;place-items:center;background:var(--brand-50);color:var(--brand);border:1px solid var(--brand-100)}
.mega-ico svg{width:19px;height:19px}
.mega-link h5{margin:0;font-size:14.5px;font-weight:600;color:var(--ink);letter-spacing:-.01em}
.mega-link p{margin:2px 0 0;font-size:12.5px;color:var(--muted);line-height:1.4}
.mega-foot{margin-top:12px;padding:13px 14px;border-radius:var(--r-md);background:var(--surface-2);display:flex;align-items:center;justify-content:space-between;gap:16px}
.mega-foot p{margin:0;font-size:13px;color:var(--ink-2)}

/* ---------- Footer ---------- */
.footer{background:#0c1322;color:#aeb6c6;padding:72px 0 32px;margin-top:8px}
.footer a{color:#aeb6c6;transition:.15s}
.footer a:hover{color:#fff}
.footer-top{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.09)}
.footer .brand{color:#fff}
.footer .brand .accent{color:var(--brand-200)}
.footer-col h6{margin:0 0 16px;font-size:13px;font-weight:600;color:#fff;letter-spacing:.01em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li a{font-size:14px}
.footer-intro p{margin:16px 0 20px;font-size:14px;line-height:1.6;max-width:280px;color:#9aa3b4}
.footer-badges{display:flex;gap:10px;flex-wrap:wrap}
.f-badge{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 13px;border-radius:var(--r-pill);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);font-size:12.5px;color:#cbd2df}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:28px;font-size:13px;color:#7e8699;flex-wrap:wrap}
.footer-bottom .legal{display:flex;gap:22px;flex-wrap:wrap}

/* ---------- CTA врезка (inline) ---------- */
.cta-strip{position:relative;overflow:hidden;border-radius:var(--r-xl);padding:38px 40px;background:linear-gradient(180deg,#0e1730,#0c1322);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--sh-lg)}
.cta-strip h3{color:#fff;font-size:25px}
.cta-strip p{margin:8px 0 0;color:#aab3c6;font-size:15.5px;max-width:520px}
.cta-strip .glow{position:absolute;inset:auto -120px -180px auto;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,var(--brand),transparent 62%);opacity:.5;filter:blur(20px);pointer-events:none}
.cta-strip .actions{display:flex;gap:12px;position:relative;z-index:1;flex:0 0 auto}

/* ---------- Utility ---------- */
.divider{height:1px;background:var(--line)}
.grid{display:grid}
.flex{display:flex}
.between{justify-content:space-between}
.items-center{align-items:center}
.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-24{gap:24px}
.icon-tile{width:46px;height:46px;border-radius:var(--r-md);display:grid;place-items:center;background:var(--brand-50);color:var(--brand);border:1px solid var(--brand-100)}
.icon-tile svg{width:22px;height:22px}
.icon-tile.ok{background:var(--ok-bg);color:var(--ok);border-color:var(--ok-line)}
.icon-tile.warn{background:var(--warn-bg);color:var(--warn);border-color:var(--warn-line)}
.icon-tile.danger{background:var(--danger-bg);color:var(--danger);border-color:var(--danger-line)}
.icon-tile.ink{background:var(--surface-3);color:var(--ink);border-color:var(--line-strong)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease), transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}