/* =========================================================
   MIRODEK — FAQ / Довідник менеджера
   Мінімалістичний, "гумовий" (responsive) дизайн на Roboto
   ========================================================= */

:root{
  --color-bg:            #ffffff;
  --color-bg-soft:       #f6f7f8;
  --color-header:        #eef0f2;
  --color-border:        #e2e5e9;
  --color-text:          #202428;
  --color-text-soft:     #5b6470;
  --color-accent:        #1f6f5c;
  --color-accent-dark:   #165445;
  --color-accent-soft:   #e6f1ee;

  --color-important-bg:  #fff6e6;
  --color-important-bd:  #f0b73a;
  --color-explain-bg:    #eaf3fb;
  --color-explain-bd:    #4a90d9;
  --color-sell-bg:       #fdeeee;
  --color-sell-bd:       #e0645a;
  --color-standard-bg:   #f1eefc;
  --color-standard-bd:   #8a6fd6;

  --header-h: 64px;
  --nav-w: 320px;
  --radius: 10px;
  --shadow: 0 4px 18px rgba(20,25,30,.08);
  --content-max: 860px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
html,body{ margin:0; padding:0; }

body{
  font-family:"Roboto",-apple-system,Segoe UI,Arial,sans-serif;
  color:var(--color-text);
  background:var(--color-bg);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}

/* scroll offset so anchors land below fixed header */
section[id], div[id]{ scroll-margin-top: calc(var(--header-h) + 14px); }

a{ color:var(--color-accent); text-decoration:none; }
a:hover{ text-decoration:underline; }

img{ max-width:100%; height:auto; display:block; }

/* ---------------- Header ---------------- */
.site-header{
  position:fixed; top:0; left:0; right:0; height:var(--header-h);
  background:var(--color-header);
  border-bottom:1px solid var(--color-border);
  display:flex; align-items:center; gap:12px;
  padding:0 14px;
  z-index:1000;
}

.burger-btn{
  flex:0 0 auto;
  width:42px; height:42px;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:5px;
  background:transparent; border:none; cursor:pointer; border-radius:8px;
}
.burger-btn:hover{ background:rgba(0,0,0,.06); }
.burger-btn span{ display:block; width:22px; height:2px; background:var(--color-text); border-radius:2px; transition:transform .25s ease, opacity .25s ease; }
.burger-btn.is-active span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.burger-btn.is-active span:nth-child(2){ opacity:0; }
.burger-btn.is-active span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

.header-brand{
  flex:0 0 auto; font-weight:700; letter-spacing:.03em; font-size:17px; color:var(--color-accent-dark);
  display:none;
}
@media(min-width:900px){ .header-brand{ display:block; } }

.search-wrap{
  flex:1 1 auto;
  display:flex; justify-content:center;
}
.search-group{
  width:100%; max-width:480px;
  display:flex; align-items:stretch;
  background:#fff; border:1px solid var(--color-border); border-radius:9px;
  overflow:hidden;
}
.search-group input{
  flex:1 1 auto; border:none; outline:none; padding:0 14px;
  font-family:inherit; font-size:15px; background:transparent; color:var(--color-text); min-width:0;
}
.search-nav{
  display:flex; align-items:center; gap:2px; padding:0 4px; flex:0 0 auto; border-left:1px solid var(--color-border);
}
.search-nav button{
  border:none; background:transparent; width:30px; height:30px; cursor:pointer; border-radius:6px;
  color:var(--color-text-soft); font-size:15px; display:flex; align-items:center; justify-content:center;
}
.search-nav button:hover{ background:var(--color-bg-soft); color:var(--color-text); }
.search-nav button:disabled{ opacity:.35; cursor:default; }
.search-count{
  font-size:12px; color:var(--color-text-soft); white-space:nowrap; padding:0 6px; min-width:52px; text-align:center;
}
.search-btn{
  flex:0 0 auto; border:none; background:var(--color-accent); color:#fff; width:44px;
  cursor:pointer; font-size:16px; display:flex; align-items:center; justify-content:center;
}
.search-btn:hover{ background:var(--color-accent-dark); }

.header-spacer{ flex:0 0 42px; }
@media(max-width:520px){ .header-spacer{ display:none; } }

/* ---------------- Side nav ---------------- */
.nav-overlay{
  position:fixed; inset:0; background:rgba(15,20,25,.35);
  opacity:0; pointer-events:none; transition:opacity .25s ease; z-index:1100;
}
.nav-overlay.is-visible{ opacity:1; pointer-events:auto; }

.side-nav{
  position:fixed; top:0; left:0; bottom:0; width:min(var(--nav-w), 88vw);
  background:#fff; z-index:1200;
  transform:translateX(-100%); transition:transform .28s ease;
  display:flex; flex-direction:column;
  box-shadow:var(--shadow);
}
.side-nav.is-open{ transform:translateX(0); }

.side-nav-head{
  height:var(--header-h); flex:0 0 auto;
  display:flex; align-items:center; justify-content:space-between;
  padding:0 16px; border-bottom:1px solid var(--color-border);
}
.side-nav-head strong{ color:var(--color-accent-dark); font-size:16px; }
.nav-close-btn{
  border:none; background:transparent; font-size:22px; line-height:1; cursor:pointer; color:var(--color-text-soft);
  width:34px; height:34px; border-radius:8px;
}
.nav-close-btn:hover{ background:var(--color-bg-soft); }

.side-nav-list{ list-style:none; margin:0; padding:8px 0; overflow-y:auto; flex:1 1 auto; }

.nav-item{ border-bottom:1px solid #f0f1f3; }
.nav-row{ display:flex; align-items:stretch; }
.nav-link{
  flex:1 1 auto; display:flex; align-items:center; gap:10px;
  padding:12px 10px 12px 16px; color:var(--color-text); font-size:14.5px; font-weight:500;
}
.nav-link:hover{ background:var(--color-bg-soft); text-decoration:none; }
.nav-link .n{
  flex:0 0 auto; width:22px; height:22px; border-radius:6px; background:var(--color-accent-soft);
  color:var(--color-accent-dark); font-size:11.5px; font-weight:700;
  display:flex; align-items:center; justify-content:center;
}
.nav-toggle{
  flex:0 0 auto; width:40px; border:none; background:transparent; cursor:pointer;
  color:var(--color-text-soft); display:flex; align-items:center; justify-content:center;
}
.nav-toggle svg{ width:12px; height:12px; transition:transform .2s ease; }
.nav-item.is-open .nav-toggle svg{ transform:rotate(180deg); }
.nav-toggle:hover{ background:var(--color-bg-soft); }

.nav-sub{
  list-style:none; margin:0; padding:0; max-height:0; overflow:hidden; transition:max-height .25s ease;
  background:var(--color-bg-soft);
}
.nav-item.is-open .nav-sub{ max-height:1200px; }
.nav-sub a{
  display:block; padding:8px 16px 8px 46px; font-size:13px; color:var(--color-text-soft);
  border-left:2px solid transparent;
}
.nav-sub a::before{ content:"•"; margin-right:7px; color:var(--color-accent); }
.nav-sub a:hover{ background:#eef1f0; color:var(--color-text); text-decoration:none; }

/* ---------------- Layout ---------------- */
.page-wrap{
  padding-top:var(--header-h);
  max-width:var(--content-max);
  margin:0 auto;
  padding-left:20px; padding-right:20px;
}

main{ padding-bottom:64px; }

.content-section{ padding-top:34px; border-top:1px solid var(--color-border); margin-top:34px; }
.content-section:first-of-type{ border-top:none; margin-top:18px; }

.content-section > h1{
  font-size:26px; font-weight:700; letter-spacing:-.01em; color:var(--color-accent-dark);
  display:flex; align-items:center; gap:12px; margin:0 0 16px;
}
.content-subsection{ margin-top:30px; }
.content-subsection h2{
  font-size:20px; font-weight:600; margin:0 0 10px;
  display:flex; align-items:center; gap:10px;
}

.sec-num{
  flex:0 0 auto; background:var(--color-accent); color:#fff; font-weight:700;
  font-size:13px; padding:3px 9px; border-radius:7px; letter-spacing:.02em;
}
.content-subsection .sec-num{ background:var(--color-accent-soft); color:var(--color-accent-dark); }

p{ margin:0 0 14px; color:var(--color-text); }
strong{ font-weight:700; color:#14181c; }
em{ font-style:italic; color:var(--color-text-soft); }

ul, ol{ margin:0 0 16px; padding-left:22px; }
li{ margin-bottom:6px; }

.subblock{ margin:22px 0; }
.subblock h4{
  font-size:16.5px; font-weight:700; margin:0 0 10px; color:var(--color-text);
  padding-left:12px; border-left:3px solid var(--color-accent);
}

/* figures */
.fig{ margin:20px 0; text-align:center; }
.fig img{
  margin:0 auto; border-radius:var(--radius); border:1px solid var(--color-border);
  background:var(--color-bg-soft);
  max-height:480px; object-fit:contain;
}
.fig figcaption{
  margin-top:8px; font-size:13px; font-style:italic; color:var(--color-text-soft);
}

/* callouts */
.callout{
  margin:20px 0; padding:16px 18px 4px; border-radius:var(--radius);
  border:1px solid transparent; border-left-width:4px;
}
.callout p:last-child{ margin-bottom:12px; }
.callout-title{
  font-weight:700; font-size:15px; margin:0 0 10px !important; color:inherit;
}
.callout-important{ background:var(--color-important-bg); border-left-color:var(--color-important-bd); }
.callout-explain  { background:var(--color-explain-bg);   border-left-color:var(--color-explain-bd); }
.callout-sell     { background:var(--color-sell-bg);      border-left-color:var(--color-sell-bd); }
.callout-standard { background:var(--color-standard-bg);  border-left-color:var(--color-standard-bd); }

/* values grid */
.values-grid{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:14px; margin:18px 0 24px;
}
.value-card{
  background:var(--color-bg-soft); border:1px solid var(--color-border); border-radius:var(--radius);
  padding:16px 18px;
}
.value-card h4{ margin:0 0 8px; font-size:15px; color:var(--color-accent-dark); border:none; padding:0; }
.value-card p{ font-size:14px; margin-bottom:0; color:var(--color-text-soft); }

/* tables -> responsive card grid */
.table-grid{
  display:grid;
  grid-template-columns:repeat(var(--cols,2), 1fr);
  gap:1px;
  background:var(--color-border);
  border:1px solid var(--color-border);
  border-radius:var(--radius);
  overflow:hidden;
  margin:18px 0;
}
.cell{
  background:#fff; padding:12px 14px; font-size:14px; display:flex; align-items:center; justify-content:center;
  flex-direction:column; gap:8px; text-align:center;
}
.cell.head{
  background:var(--color-accent-soft); color:var(--color-accent-dark); font-weight:700;
  font-size:12.5px; text-transform:uppercase; letter-spacing:.03em;
}
.cell img{ border-radius:6px; max-height:220px; object-fit:contain; }
.cell-text{ line-height:1.45; }

@media(max-width:640px){
  .table-grid{ grid-template-columns:repeat(min(var(--cols,2),2),1fr) !important; }
}
@media(max-width:420px){
  .table-grid{ grid-template-columns:1fr !important; }
}

/* search highlighting */
mark.search-hit{ background:#ffe285; color:inherit; border-radius:2px; padding:0 1px; }
mark.search-hit.is-active{ background:var(--color-accent); color:#fff; }

/* footer */
.site-footer{
  border-top:1px solid var(--color-border); padding:28px 0 50px; margin-top:40px;
  color:var(--color-text-soft); font-size:13px; text-align:center;
}

/* back to top */
.to-top{
  position:fixed; right:18px; bottom:22px; width:44px; height:44px; border-radius:50%;
  background:var(--color-accent); color:#fff; border:none; cursor:pointer; box-shadow:var(--shadow);
  font-size:18px; display:flex; align-items:center; justify-content:center;
  opacity:0; pointer-events:none; transition:opacity .2s ease, transform .2s ease;
  z-index:900;
}
.to-top.is-visible{ opacity:1; pointer-events:auto; }
.to-top:hover{ transform:translateY(-2px); background:var(--color-accent-dark); }

/* responsive tweaks */
@media(max-width:640px){
  :root{ --header-h:58px; }
  .content-section > h1{ font-size:21px; }
  .content-subsection h2{ font-size:17.5px; }
  body{ font-size:15px; }
  .search-group{ max-width:none; }
  .header-brand{ display:none; }
}

@media(min-width:641px) and (max-width:899px){
  .search-group{ max-width:360px; }
}