/* ============================================================
   ДОКТОР ТОНУС — Design System
   Shared tokens, primitives, components for Site A / Site B
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400&family=Manrope:wght@400;500;600;700;800&display=swap');

:root{
  /* brand palette */
  --forest:#163B31;
  --forest-dark:#0D2922;
  --cream:#F5F0E6;
  --beige:#E0D6C5;
  --white:#FAF9F5;
  --gold:#C6A85B;
  --ink:#17201D;
  --ink-soft:#4B564F;
  --line: rgba(23,32,29,0.12);
  --line-on-dark: rgba(245,240,230,0.16);

  --sans:'Manrope',-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --serif:'Cormorant Garamond',"Times New Roman",serif;

  --ease:cubic-bezier(.16,.8,.24,1);
  --max: 1440px;
  --pad: clamp(20px, 6vw, 96px);
}

*{ box-sizing:border-box; min-width:0; }
html{ scroll-behavior:smooth; overflow-x:hidden; width:100%; }
body{
  margin:0;
  width:100%;
  background:var(--white);
  color:var(--ink);
  font-family:var(--sans);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; }

::selection{ background:var(--gold); color:var(--forest-dark); }

.wrap{ max-width:var(--max); margin:0 auto; padding:0 var(--pad); }

h1,h2,h3,h4{ margin:0; font-weight:800; letter-spacing:-0.02em; line-height:1.02; text-wrap:balance; }
.serif{ font-family:var(--serif); font-weight:500; font-style:italic; letter-spacing:0; }

.eyebrow{
  font-size:0.72rem; letter-spacing:0.22em; text-transform:uppercase;
  font-weight:700; color:var(--gold);
  display:inline-flex; align-items:center; gap:10px;
}
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--gold); }

.section-num{
  font-family:var(--serif); font-style:italic; font-weight:500;
  color:var(--gold); font-size:0.95rem;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:12px;
  font-size:0.78rem; font-weight:700; letter-spacing:0.14em; text-transform:uppercase;
  padding:18px 34px; border:1px solid currentColor; border-radius:2px;
  cursor:pointer; background:transparent;
  transition:background .5s var(--ease), color .5s var(--ease), border-color .5s var(--ease);
}
.btn .arrow{ transition:transform .4s var(--ease); }
.btn:hover .arrow{ transform:translateX(6px); }

.btn-solid-dark{ background:var(--forest-dark); color:var(--white); border-color:var(--forest-dark); }
.btn-solid-dark:hover{ background:transparent; color:var(--forest-dark); }

.btn-solid-cream{ background:var(--cream); color:var(--forest-dark); border-color:var(--cream); }
.btn-solid-cream:hover{ background:transparent; color:var(--cream); border-color:var(--cream); }

.btn-outline-dark{ color:var(--forest-dark); border-color:var(--forest-dark); }
.btn-outline-dark:hover{ background:var(--forest-dark); color:var(--white); }

.btn-outline-cream{ color:var(--cream); border-color:var(--line-on-dark); }
.btn-outline-cream:hover{ background:var(--cream); color:var(--forest-dark); border-color:var(--cream); }

/* header CTA must stay readable once the header background turns light on scroll */
.site-header.scrolled .btn-outline-cream{ color:var(--forest-dark); border-color:var(--line); }
.site-header.scrolled .btn-outline-cream:hover{ background:var(--forest-dark); color:var(--white); border-color:var(--forest-dark); }

.link-underline{
  position:relative; font-size:0.8rem; font-weight:700; letter-spacing:0.1em; text-transform:uppercase;
}
.link-underline::after{
  content:""; position:absolute; left:0; right:0; bottom:-4px; height:1px;
  background:currentColor; transform:scaleX(0.28); transform-origin:left;
  transition:transform .5s var(--ease);
}
.link-underline:hover::after{ transform:scaleX(1); }

/* underline hidden at rest, grows outward from the center on hover */
.link-underline-center::after{
  left:50%; right:50%; transform:none;
  transition:left .45s var(--ease), right .45s var(--ease);
}
.link-underline-center:hover::after{ left:0; right:0; }

/* ---------- placeholder "photography" ----------
   No real photo assets are provided. Rather than stock imagery,
   we render tactile editorial textures in brand tones. */
.ph{
  position:relative; overflow:hidden; background:var(--beige);
}
.ph::before{
  content:""; position:absolute; inset:0;
  background-image:
    radial-gradient(120% 90% at 15% 10%, rgba(255,255,255,0.35), transparent 55%),
    radial-gradient(140% 100% at 90% 100%, rgba(13,41,34,0.55), transparent 60%);
}
.ph::after{
  content:""; position:absolute; inset:0; opacity:.5; mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.35'/%3E%3C/svg%3E");
  background-size:220px 220px;
}
.ph img{ position:relative; z-index:1; width:100%; height:100%; object-fit:cover; transition:transform 1.1s var(--ease); }
.ph:hover img{ transform:scale(1.05); }
.ph-tone-forest{ background:linear-gradient(155deg, var(--forest) 0%, var(--forest-dark) 100%); }
.ph-tone-beige{ background:linear-gradient(155deg, #EFE7D6 0%, var(--beige) 100%); }
.ph-tone-gold{ background:linear-gradient(155deg, #D9C088 0%, var(--gold) 100%); }
.ph-caption{
  position:absolute; z-index:2; left:24px; bottom:22px;
  font-size:0.7rem; letter-spacing:0.16em; text-transform:uppercase; font-weight:700;
  color:var(--white); opacity:.85;
}

/* ---------- reveal animation ---------- */
.reveal{
  opacity:0; transform:translateY(36px);
  transition:opacity 1s var(--ease), transform 1s var(--ease);
}
.reveal.in{ opacity:1; transform:translateY(0); }
.reveal-clip{
  clip-path:inset(0 0 100% 0);
  transition:clip-path 1.1s var(--ease);
}
.reveal-clip.in{ clip-path:inset(0 0 0% 0); }
.reveal-mask{ overflow:hidden; }
.reveal-mask > *{ display:block; transform:translateY(110%); transition:transform 1s var(--ease); }
.reveal-mask.in > *{ transform:translateY(0); }

.stagger > *{ opacity:0; transform:translateY(24px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.stagger.in > *{ opacity:1; transform:translateY(0); }
.stagger.in > *:nth-child(1){ transition-delay:.05s; }
.stagger.in > *:nth-child(2){ transition-delay:.14s; }
.stagger.in > *:nth-child(3){ transition-delay:.23s; }
.stagger.in > *:nth-child(4){ transition-delay:.32s; }
.stagger.in > *:nth-child(5){ transition-delay:.41s; }
.stagger.in > *:nth-child(6){ transition-delay:.5s; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

/* ---------- header ---------- */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:200;
  padding:22px 0;
  transition:background .5s var(--ease), padding .5s var(--ease), border-color .5s var(--ease), backdrop-filter .5s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.on-dark{ color:var(--white); }
.site-header.on-light{ color:var(--forest-dark); }
.site-header.scrolled{
  padding:14px 0;
  background:rgba(250,249,245,0.86);
  backdrop-filter:blur(16px) saturate(160%);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  border-color:var(--line);
  color:var(--forest-dark);
}
.header-row{ display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:nowrap; }
.brand-word{ font-size:0.98rem; font-weight:800; letter-spacing:0.08em; white-space:nowrap; flex:none; }
.brand-word span{ font-family:var(--serif); font-weight:500; font-style:italic; letter-spacing:0; text-transform:none; }
.header-nav{ display:flex; gap:38px; }
.header-nav a{ font-size:0.75rem; font-weight:600; letter-spacing:0.1em; text-transform:uppercase; }
.header-cta{ display:flex; align-items:center; gap:22px; flex:none; }
.burger{ display:none; }

@media (max-width:960px){
  .header-nav{ display:none; }
}
@media (max-width:480px){
  .site-header{ padding:16px 0; }
  .site-header.scrolled{ padding:12px 0; }
  .brand-word{ font-size:0.82rem; }
  .header-cta{ gap:12px; }
  .header-cta .btn{ padding:11px 16px; font-size:0.68rem; letter-spacing:0.08em; }
}

/* ---------- FAQ ---------- */
.faq-item{ border-bottom:1px solid var(--line); }
.faq-item.on-dark{ border-color:var(--line-on-dark); }
.faq-q{
  width:100%; text-align:left; background:none; border:0; cursor:pointer;
  display:flex; align-items:center; justify-content:space-between; gap:20px;
  padding:28px 0; font-size:clamp(1.05rem,2vw,1.4rem); font-weight:600; letter-spacing:-0.01em; color:inherit;
}
.faq-q .plus{ position:relative; width:18px; height:18px; flex:none; }
.faq-q .plus::before,.faq-q .plus::after{
  content:""; position:absolute; background:currentColor;
}
.faq-q .plus::before{ left:0; top:50%; width:100%; height:1px; transform:translateY(-50%); }
.faq-q .plus::after{ top:0; left:50%; height:100%; width:1px; transform:translateX(-50%); transition:transform .4s var(--ease); }
.faq-item.open .plus::after{ transform:translateX(-50%) rotate(90deg); opacity:0; }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .55s var(--ease); }
.faq-a p{ padding:0 0 30px; max-width:60ch; font-size:0.98rem; line-height:1.7; opacity:.8; }

/* ---------- footer ---------- */
.site-footer{ background:var(--forest-dark); color:var(--white); padding:80px 0 34px; }
.footer-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr 1fr; gap:40px; padding-bottom:56px; border-bottom:1px solid var(--line-on-dark); }
.footer-grid > .footer-col:last-child{ text-align:right; }
.footer-grid > .footer-col:last-child .social-row{ justify-content:flex-end; }
.footer-col h4{ font-size:0.7rem; letter-spacing:0.16em; text-transform:uppercase; color:var(--gold); font-weight:700; margin-bottom:18px; }
.footer-col div, .footer-col a{ font-size:0.92rem; line-height:1.9; opacity:.85; display:block; }
.footer-col a:hover{ opacity:1; color:var(--gold); }
.footer-bottom{ padding-top:26px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:0.74rem; opacity:.55; }
@media (max-width:820px){
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:520px){
  .footer-grid{ grid-template-columns:1fr; gap:30px; }
  .footer-grid > .footer-col:last-child{ text-align:left; }
  .footer-grid > .footer-col:last-child .social-row{ justify-content:flex-start; }
}
.footer-grid-3{ grid-template-columns:1.3fr 1fr 1fr; }
@media (max-width:820px){ .footer-grid-3{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .footer-grid-3{ grid-template-columns:1fr; } }

/* ---------- mobile sticky CTA (Site B) ---------- */
.mobile-cta-bar{
  position:fixed; left:0; right:0; bottom:0; z-index:180;
  display:none; padding:14px 16px calc(14px + env(safe-area-inset-bottom));
  background:rgba(250,249,245,0.92); backdrop-filter:blur(14px);
  border-top:1px solid var(--line);
}
.mobile-cta-bar .btn{ width:100%; justify-content:center; }
@media (max-width:760px){
  .mobile-cta-bar{ display:block; }
  body{ padding-bottom:78px; }
}

.sr-only{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; }

/* ---------- footer social icons ----------
   Scoped under .footer-col so these outrank the generic footer link rule
   (`.footer-col div, .footer-col a { display:block; ... }`), which would
   otherwise stack the buttons vertically and break the flex centering. */
.social-row, .footer-col .social-row{ display:flex; gap:14px; margin-top:4px; opacity:1; line-height:1; }
.social-btn, .footer-col .social-btn{
  width:44px; height:44px; border-radius:50%; border:1px solid rgba(198,168,91,.45);
  display:flex; align-items:center; justify-content:center; color:var(--gold); flex:none;
  opacity:1; line-height:1;
  transition:background .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease), transform .35s var(--ease), box-shadow .35s var(--ease);
}
.social-btn .vk-label{ font-family:var(--sans); font-weight:800; font-size:0.7rem; letter-spacing:0.02em; line-height:1; }
.social-btn:hover, .footer-col .social-btn:hover{
  background:var(--gold); border-color:var(--gold); color:var(--forest-dark); opacity:1;
  transform:translateY(-3px); box-shadow:0 10px 22px -10px rgba(198,168,91,.55);
}

/* ---------- narrow-viewport safety net ---------- */
@media (max-width:430px){
  :root{ --pad:18px; }
  .wrap{ padding:0 18px; }
  .btn{ padding:15px 24px; font-size:0.72rem; }
  .cta-row{ gap:12px; }
  .stage-stats{ gap:16px; }
  .footer-grid{ grid-template-columns:1fr; gap:30px; }
  .why-row{ grid-template-columns:1fr !important; gap:12px !important; }
}
@media (max-width:900px){
  .why-row{ grid-template-columns:minmax(0,140px) 1fr; }
}