/* ============================================================
   MW4 DMZ - Hajin Field Manual
   Shared stylesheet. Light-first; dark themes selectable via 🎨.
   Theming via CSS custom properties.
   ============================================================ */
:root{
  /* DEFAULT: light "field document" scheme */
  --bg:#eef1ec;
  --bg2:#e3e8df;
  --bg3:#d6ddd0;
  --panel:#ffffff;
  --header1:#f5f7f2;        /* header gradient start */
  --header2:#e3e8df;        /* header gradient end */
  --accent:#4f7a1f;         /* deep military olive */
  --accent-light:#3c5f15;   /* used for headings/links on light bg */
  --accent-dim:#6f9437;
  --on-accent:#ffffff;      /* text that sits on the accent color */
  --text:#1f2a1c;
  --text-muted:#5a6b54;
  --text-detail:#33402d;
  --border:#c3cdb9;
  --grid-line:rgba(79,122,31,.05);
  --shadow:rgba(60,70,50,.18);
  --radius:10px;
  /* threat level colors (stable across themes) */
  --threat-low:#4f9d3f;
  --threat-medium:#c9941f;
  --threat-high:#d9772b;
  --threat-critical:#d6453b;
  --threat-extreme:#9b26d6;
  --tip-bg:#eaf4e2;--tip-border:#4f7a1f;
  --warn-bg:#fbe8e3;--warn-border:#d9772b;
  --caution-bg:#fbf3dd;--caution-border:#c9941f;
}
/* Alternate light scheme */
[data-theme="paper"]{--bg:#f4f1e8;--bg2:#ebe6d7;--bg3:#ded7c3;--panel:#fffdf7;--header1:#fbf9f1;--header2:#ebe6d7;--accent:#8a6d1f;--accent-light:#6e5614;--accent-dim:#a88a38;--border:#d6cdb4;--grid-line:rgba(138,109,31,.05);--shadow:rgba(80,70,40,.18)}
[data-theme="steel"]{--bg:#eceff2;--bg2:#e0e5ea;--bg3:#d2d9e0;--panel:#ffffff;--header1:#f3f5f8;--header2:#e0e5ea;--accent:#2f6b9e;--accent-light:#1f5078;--accent-dim:#4e86b5;--border:#bcc7d2;--grid-line:rgba(47,107,158,.05);--shadow:rgba(50,60,75,.18)}
/* Dark schemes (opt-in) */
[data-theme="olive"]{--bg:#0b0f0d;--bg2:#121815;--bg3:#1b2420;--panel:#141d18;--header1:#090c0a;--header2:#121815;--accent:#8fae3f;--accent-light:#cfe88a;--accent-dim:#5f7628;--on-accent:#0b0f0d;--text:#dfe7df;--text-muted:#8a9a8c;--text-detail:#c3cfc3;--border:#2a3730;--grid-line:rgba(143,174,63,.025);--shadow:rgba(0,0,0,.45);--tip-bg:#13251c;--warn-bg:#2a1714;--caution-bg:#2a2513}
[data-theme="arctic"]{--bg:#0a0f14;--bg2:#101823;--bg3:#182333;--panel:#111a26;--header1:#070b10;--header2:#101823;--accent:#5aa6d6;--accent-light:#b8dcf2;--accent-dim:#356a8c;--on-accent:#06121a;--text:#dfe9f2;--text-muted:#8a9bab;--text-detail:#c3d2df;--border:#213246;--grid-line:rgba(90,166,214,.03);--shadow:rgba(0,0,0,.45);--tip-bg:#0d2230;--warn-bg:#2a1714;--caution-bg:#2a2513}
[data-theme="blackops"]{--bg:#0c0a0f;--bg2:#15111b;--bg3:#201a2b;--panel:#17121f;--header1:#08060c;--header2:#15111b;--accent:#9d6bff;--accent-light:#d6c2ff;--accent-dim:#5f3fa0;--on-accent:#0c0a0f;--text:#e5dff2;--text-muted:#9a8ab0;--text-detail:#cfc3df;--border:#2d2340;--grid-line:rgba(157,107,255,.03);--shadow:rgba(0,0,0,.5);--tip-bg:#1c1530;--warn-bg:#2a1714;--caution-bg:#2a2513}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Segoe UI',Roboto,system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  line-height:1.5;
  background-image:
    linear-gradient(var(--grid-line) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:40px 40px;
}
a{color:var(--accent-light);text-decoration:none;transition:color .15s}
a:hover{color:var(--accent);text-decoration:none}
h1,h2,h3,h4{font-weight:700;letter-spacing:.3px}

/* ---------- Header ---------- */
.header{
  background:linear-gradient(135deg,var(--header1),var(--header2));
  border-bottom:2px solid var(--accent);
  padding:18px 20px;text-align:center;position:sticky;top:0;z-index:100;
  box-shadow:0 4px 20px var(--shadow);
}
.header .eyebrow{color:var(--text-muted);font-size:.7em;letter-spacing:3px;text-transform:uppercase}
.header h1{color:var(--accent-light);font-size:1.7em;margin:4px 0;text-transform:uppercase}
.header p{color:var(--text-muted);font-size:.9em}
.header .back-link{
  display:inline-block;margin-top:12px;color:var(--text);font-size:.9em;
  background:var(--bg3);padding:7px 18px;border-radius:6px;border:1px solid var(--border);transition:all .2s
}
.header .back-link:hover{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}

/* ---------- Language toggle ---------- */
.lang-toggle{position:fixed;top:10px;right:12px;z-index:200;display:flex;gap:6px}
.lang-toggle button{
  background:var(--bg2);border:1px solid var(--border);color:var(--text);
  padding:6px 12px;cursor:pointer;border-radius:6px;font-size:.78em;transition:all .2s;
  box-shadow:0 2px 8px var(--shadow)
}
.lang-toggle button.active{background:var(--accent);color:var(--on-accent);border-color:var(--accent);font-weight:700}
.lang-toggle button:hover{background:var(--accent-dim);color:#fff}
@media(max-width:600px){
  .lang-toggle{top:8px;right:8px}
  .lang-toggle button{padding:5px 9px;font-size:.72em}
  /* Reserve room so the fixed EN/RU buttons never cover the header text */
  .header{padding-top:52px}
}

/* ---------- Layout ---------- */
.container{max-width:1000px;margin:0 auto;padding:22px 20px}
.lead{color:var(--text-detail);font-size:.95em;max-width:760px;margin:0 auto 10px;text-align:left}

/* ---------- Nav grid (hub cards) ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;padding:8px 0}
.card{
  background:linear-gradient(160deg,var(--panel),var(--bg2));
  border:1px solid var(--border);border-radius:var(--radius);
  padding:16px;text-decoration:none;color:var(--text);transition:all .25s;
  position:relative;overflow:hidden;display:flex;flex-direction:column
}
.card::before{content:"";position:absolute;inset:0;border-left:3px solid var(--accent);opacity:0;transition:opacity .25s}
.card:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:0 10px 30px var(--shadow)}
.card:hover::before{opacity:1}
.card .icon{font-size:1.5em;line-height:1;position:absolute;left:16px;top:16px}
.card h2{color:var(--accent-light);font-size:1.05em;margin:0 0 6px;padding-left:34px;min-height:24px;display:flex;align-items:center}
.card p{color:var(--text-muted);font-size:.84em;line-height:1.45}
.card .badge{
  align-self:flex-start;margin-top:auto;background:var(--bg3);padding:3px 10px;border-radius:12px;
  font-size:.68em;color:var(--text-muted);border:1px solid var(--border);letter-spacing:.5px
}

/* ---------- Section dividers ---------- */
.section-divider{
  text-align:center;color:var(--accent-light);font-size:1.05em;font-weight:700;
  margin:30px 0 14px;padding:10px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  text-transform:uppercase;letter-spacing:1.5px
}

/* ---------- Generic content panels ---------- */
.panel{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px;margin:14px 0
}
.panel h3{color:var(--accent-light);margin-bottom:10px;font-size:1.1em;display:flex;align-items:center;gap:8px}
.panel ul{padding-left:20px;margin:6px 0}
.panel li{margin:5px 0;color:var(--text-detail);font-size:.92em}
.panel p{color:var(--text-detail);font-size:.92em;margin:6px 0}

/* search box */
.searchbar{
  display:flex;gap:10px;align-items:center;margin:16px 0;flex-wrap:wrap
}
.searchbar input{
  flex:1;min-width:200px;background:var(--bg2);border:1px solid var(--border);color:var(--text);
  padding:10px 14px;border-radius:8px;font-size:.95em
}
.searchbar input:focus{outline:none;border-color:var(--accent)}
.filter-chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{
  background:var(--bg3);border:1px solid var(--border);color:var(--text-muted);
  padding:5px 12px;border-radius:14px;font-size:.78em;cursor:pointer;transition:all .15s;user-select:none
}
.chip.active{background:var(--accent);color:var(--on-accent);border-color:var(--accent);font-weight:700}
.chip:hover{border-color:var(--accent)}
.expand-ctrl{display:flex;gap:6px;margin-left:auto}
.entry-head:focus-visible,.chip:focus-visible,.lang-toggle button:focus-visible,.theme-toggle>button:focus-visible,.reset-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- Entry list (collapsible) ---------- */
.entry{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  margin:10px 0;overflow:hidden;transition:border-color .2s
}
.entry:hover{border-color:var(--accent-dim)}
.entry-head{
  display:flex;align-items:center;gap:12px;padding:14px 16px;cursor:pointer;user-select:none
}
.entry-head:hover{background:var(--bg3)}
.entry-icon{font-size:1.4em;flex-shrink:0;width:30px;text-align:center}
.entry-title{flex:1;font-weight:600;font-size:.98em;color:var(--text)}
.entry-sub{font-size:.78em;color:var(--text-muted);display:block;margin-top:2px;font-weight:400}
.name-en{color:var(--text-muted);font-weight:400;font-size:.88em}
.m-objlabel{font-size:.74em;text-transform:uppercase;letter-spacing:.5px;color:var(--accent-light);margin:4px 0 2px;font-weight:700}
.m-reward{margin-top:8px;font-size:.88em;color:var(--text-detail);background:var(--bg3);border:1px solid var(--border);border-radius:6px;padding:6px 10px}
.entry-chevron{color:var(--text-muted);transition:transform .2s;flex-shrink:0}
.entry.open .entry-chevron{transform:rotate(90deg)}
.entry-body{display:none;padding:0 16px 16px 58px;color:var(--text-detail);font-size:.9em}
.entry.open .entry-body{display:block}
.entry-body ul{padding-left:18px;margin:8px 0}
.entry-body li{margin:4px 0}
.entry-body p{margin:6px 0}

/* ---------- Threat badge ---------- */
.threat{display:inline-block;padding:2px 9px;border-radius:4px;font-size:.72em;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:#fff}
.threat.low{background:var(--threat-low)}
.threat.medium{background:var(--threat-medium)}
.threat.high{background:var(--threat-high);color:#fff}
.threat.critical{background:var(--threat-critical);color:#fff}
.threat.extreme{background:var(--threat-extreme);color:#fff}

/* tag pills */
.tag{display:inline-block;padding:2px 8px;margin:2px 3px 2px 0;border-radius:4px;font-size:.7em;background:var(--bg3);border:1px solid var(--border);color:var(--text-muted)}

/* ---------- Callouts ---------- */
.tip,.warning,.caution{padding:10px 14px;margin:10px 0;border-radius:0 6px 6px 0;font-size:.88em}
.tip{background:var(--tip-bg);border-left:3px solid var(--tip-border)}
.tip::before{content:'💡 '}
.warning{background:var(--warn-bg);border-left:3px solid var(--warn-border)}
.warning::before{content:'⚠️ '}
.caution{background:var(--caution-bg);border-left:3px solid var(--caution-border)}
.caution::before{content:'🚨 '}

/* ---------- Checklist / progress (missions) ---------- */
.progress-bar{background:var(--bg2);border-radius:8px;height:10px;margin:16px 0 6px;overflow:hidden;border:1px solid var(--border)}
.progress-fill{background:linear-gradient(90deg,var(--accent-dim),var(--accent-light));height:100%;transition:width .4s;width:0}
.progress-text{text-align:center;color:var(--text-muted);font-size:.82em;margin-bottom:12px}
.check{width:22px;height:22px;border:2px solid var(--border);border-radius:5px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s}
.entry.done{opacity:.6}
.entry.done .check{border-color:var(--accent);background:var(--accent)}
.entry.done .check::after{content:'✓';color:var(--on-accent);font-weight:800;font-size:.8em}
.reset-btn{display:block;margin:24px auto;background:var(--bg3);border:1px solid var(--border);color:var(--text);padding:9px 24px;border-radius:6px;cursor:pointer;font-size:.88em}
.reset-btn:hover{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}

/* ---------- Stat grid ---------- */
/* Top bar: full-width search on top, KPI pills on their own line below.
   Predictable and identical in EN and RU (only the text differs). */
.topbar{display:flex;flex-direction:column-reverse;align-items:stretch;gap:10px;margin:14px 0 6px}
.topbar .topbar-search{margin:0}
.topbar .topbar-search input{width:100%}
.topbar .stat-grid{margin:0;justify-content:flex-start}
@media(max-width:600px){
  .topbar .stat-grid{justify-content:center}
}
/* Compact inline stat pills (not boxes): number + label on one line, centered row. */
.stat-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:12px 0}
.stat{display:inline-flex;align-items:baseline;gap:6px;background:var(--bg2);border:1px solid var(--border);border-radius:999px;padding:5px 13px;white-space:nowrap}
.stat .num{font-size:.9em;color:var(--accent-light);font-weight:700}
.stat .lbl{font-size:.68em;color:var(--text-muted);text-transform:uppercase;letter-spacing:.3px}

/* ---------- Table ---------- */
.data-table{width:100%;border-collapse:collapse;margin:12px 0;font-size:.88em}
.data-table th,.data-table td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--border)}
.data-table th{color:var(--accent-light);font-size:.8em;text-transform:uppercase;letter-spacing:.5px}
.data-table tr:hover td{background:var(--bg2)}

/* ---------- Map iframe ---------- */
.map-wrap{position:relative;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:10px;margin:14px 0}
.map-wrap iframe{width:100%;height:620px;border:0;border-radius:8px;display:block}
.map-fs-btn{position:absolute;top:18px;right:18px;background:var(--bg3);border:1px solid var(--border);color:var(--text);padding:6px 12px;border-radius:6px;cursor:pointer;font-size:.82em;z-index:5;opacity:.85}
.map-fs-btn:hover{opacity:1;background:var(--accent);color:var(--on-accent)}
.map-wrap.fullscreen{position:fixed;inset:0;z-index:9999;border-radius:0;padding:0}
.map-wrap.fullscreen iframe{height:100vh;border-radius:0}
.map-cap{color:var(--text-muted);font-size:.75em;text-align:center;margin-top:6px}

/* ---------- Links page ---------- */
.link-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px}
.link-item{display:flex;gap:12px;align-items:flex-start;background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:14px;transition:all .2s}
.link-item:hover{border-color:var(--accent);transform:translateY(-2px)}
.link-item .icon{font-size:1.5em}
.link-item h4{color:var(--accent-light);font-size:.95em}
.link-item p{color:var(--text-muted);font-size:.8em;margin-top:3px}

/* ---------- Theme switcher (docked in the top-right lang group) ---------- */
.theme-toggle{position:relative}
.theme-toggle>button{background:var(--bg2);border:1px solid var(--border);color:var(--text);padding:6px 10px;border-radius:6px;cursor:pointer;font-size:.9em;line-height:1;box-shadow:0 2px 8px var(--shadow)}
.theme-toggle>button:hover{border-color:var(--accent)}
.theme-menu{display:none;position:absolute;top:40px;right:0;background:var(--bg2);border:1px solid var(--border);border-radius:8px;padding:8px;min-width:150px;box-shadow:0 8px 24px var(--shadow)}
.theme-menu.open{display:block}
.theme-menu button{display:block;width:100%;text-align:left;background:none;border:none;color:var(--text);padding:7px 10px;cursor:pointer;border-radius:5px;font-size:.85em}
.theme-menu button:hover{background:var(--bg3)}

/* ---------- Global search (index) ---------- */
.gsearch-results{display:flex;flex-direction:column;gap:6px;margin:6px 0 10px}
.gsearch-hit{display:flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:10px 12px;color:var(--text);transition:border-color .15s}
.gsearch-hit:hover{border-color:var(--accent);text-decoration:none}
.gsearch-hit .gs-icon{font-size:1.2em;width:24px;text-align:center}
.gsearch-hit .gs-main{flex:1;display:flex;flex-direction:column}
.gsearch-hit .gs-title{font-weight:600;font-size:.92em;color:var(--accent-light)}
.gsearch-hit .gs-cat{font-size:.72em;color:var(--text-muted)}

/* ---------- Footer ---------- */
.footer{text-align:center;padding:26px 20px;color:#5c6b5e;font-size:.78em;border-top:1px solid var(--border);margin-top:30px}
.footer a{color:var(--accent-dim)}

/* ---------- Utility ---------- */
.hidden{display:none !important}
.updated{font-size:.72em;color:var(--text-muted)}
.tabs{display:flex;gap:4px;padding:0 2px;overflow-x:auto;border-bottom:2px solid var(--border);margin-top:10px}
.tab-btn{background:none;border:none;color:var(--text-muted);padding:11px 16px;cursor:pointer;font-size:.88em;font-weight:600;border-bottom:3px solid transparent;white-space:nowrap;transition:all .2s}
.tab-btn:hover{color:var(--text)}
.tab-btn.active{color:var(--accent-light);border-bottom-color:var(--accent)}
.tab-panel{display:none}
.tab-panel.active{display:block;animation:fade .25s}
@keyframes fade{from{opacity:0}to{opacity:1}}
img.emoji{height:1em;width:1em;margin:0 .1em;vertical-align:-0.1em}

/* ---------- Squad diagram (4-player guide page) ---------- */
.squad-split{display:flex;gap:16px;flex-wrap:wrap;margin:16px 0}
.squad-box{flex:1;min-width:260px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:14px}
.squad-box .sq-title{text-align:center;font-weight:700;font-size:.9em;color:var(--accent-light);margin-bottom:10px;padding-bottom:8px;border-bottom:1px dashed var(--border);text-transform:uppercase;letter-spacing:1px}
.member{display:flex;align-items:center;gap:10px;background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:9px 11px;margin-bottom:8px}
.member.anchor{border-color:var(--accent)}
.member .flag{font-size:1.3em}
.member .m-who{font-weight:600;font-size:.85em;color:var(--text)}
.member .m-loc{font-size:.72em;color:var(--text-muted)}
.member .m-role{margin-left:auto;font-size:.64em;padding:2px 8px;border-radius:5px;text-transform:uppercase;letter-spacing:.5px}
.role-anchor{background:var(--accent);color:var(--on-accent);font-weight:700}
.role-rider{background:var(--bg2);color:var(--text-muted);border:1px solid var(--border)}
.flow-arrow{text-align:center;color:var(--text-muted);font-size:1.2em;margin:8px 0}
.flow-hub{background:var(--panel);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:10px;padding:14px;text-align:center;margin:8px auto;max-width:480px}
.flow-hub .t{font-weight:700;color:var(--accent-light);font-size:.98em}
.flow-hub .d{font-size:.8em;color:var(--text-muted);margin-top:4px}
.node-badge{display:inline-block;background:var(--accent);color:var(--on-accent);font-weight:700;font-size:.82em;padding:4px 14px;border-radius:6px;margin:4px auto}
code{background:var(--bg3);padding:2px 7px;border-radius:5px;color:var(--accent-light);font-family:'SF Mono',Menlo,monospace;font-size:.9em}
.diagram-fig{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin:16px 0;text-align:center}
.diagram-fig img{max-width:100%;border-radius:8px;border:1px solid var(--border)}
.diagram-fig figcaption{font-size:.78em;color:var(--text-muted);margin-top:10px}

.steps-ol{margin:8px 0;padding-left:26px}
.steps-ol>li{margin:0 0 14px;padding-left:4px;color:var(--text);line-height:1.45}
.steps-ol>li b{color:var(--accent-light)}
.steps-ol .step-body{font-size:.88em;color:var(--text-muted);margin-top:4px}

@media(max-width:600px){
  .header h1{font-size:1.15em;margin:2px 0}
  .entry-body{padding-left:16px}
  .container{padding:16px 12px}
  /* Slim the sticky header on phones so it doesn't eat the screen.
     Keep the title + back-link; drop the eyebrow and subtitle.
     Top padding leaves room for the fixed EN/RU + theme buttons. */
  .header{padding:40px 14px 10px}
  .header .eyebrow{display:none}
  .header>p{display:none}
  .header .back-link{margin-top:6px;padding:5px 12px;font-size:.82em}
  /* Let wide tables scroll horizontally instead of squishing. */
  .data-table{display:block;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
}