/* ================================================================
   minto23.com Shared Base Styles v1.5
   Design Tokens · Reset · Nav · Starfield · Pro-Fold · Footer
   All sub-pages MUST load this file. Page-specific styles go inline.
   ================================================================ */

/* --- RESET --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

/* --- DESIGN TOKENS (v1.5 consolidated) --- */
:root{
  --bg:#0a0a12;--surface:#12121e;--fg:#e8e4dc;--muted:#8a8578;
  --border:rgba(255,215,120,.10);--accent:#d4a853;--accent-soft:rgba(212,168,83,.12);
  --radius:14px;--radius-sm:8px;
  --font-display:'Noto Serif SC','Songti SC',Georgia,serif;
  --font-body:'Noto Sans SC',-apple-system,'PingFang SC',system-ui,sans-serif;
  --font-mono:ui-monospace,'SF Mono',Menlo,monospace;
  /* Semantic colors */
  --auspicious:#4ade80;--auspicious-bg:rgba(74,222,128,.10);
  --neutral-color:#facc15;--neutral-bg:rgba(250,204,21,.10);
  --inauspicious:#f87171;--inauspicious-bg:rgba(248,113,113,.10);
  /* Aliases */
  --green:var(--auspicious);--red:var(--inauspicious);
  --yellow:var(--neutral-color);--orange:#fb923c;
  /* Wuxing colors */
  --wood:#6ecf7a;--fire:#e8845a;--earth:#d4a853;--metal:#c0c0c0;--water:#5b9bd5;
}
html{font-size:16px;scroll-behavior:smooth}
body{
  font-family:var(--font-body);color:var(--fg);background:var(--bg);
  line-height:1.6;min-height:100vh;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
a{color:inherit;text-decoration:none}

/* --- STARFIELD BACKGROUND --- */
#starfield{position:fixed;inset:0;z-index:0;pointer-events:none}
#starfield canvas{width:100%;height:100%}

/* --- PAGE LAYOUT --- */
.page-wrap{position:relative;z-index:1;max-width:720px;margin:0 auto;padding:0 20px 60px}

/* --- NAVIGATION (.topnav) — single standard for all sub-pages --- */
.topnav{
  position:sticky;top:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:.75rem 1.5rem;
  background:rgba(10,10,18,.72);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border);
}
.topnav .logo{font-family:var(--font-display);font-size:1.25rem;color:var(--accent);text-decoration:none;font-weight:700;letter-spacing:.04em}
.topnav .logo .sub{font-weight:400;color:var(--muted);font-size:.75rem;margin-left:4px}
.topnav nav{display:flex;gap:1.25rem}
.topnav nav a{
  color:var(--muted);text-decoration:none;font-size:.875rem;
  transition:color .2s;position:relative;padding:.25rem 0;
}
.topnav nav a:hover{color:var(--fg)}
.topnav nav a.active{color:var(--accent)}
.topnav nav a.active::after{
  content:'';position:absolute;bottom:-2px;left:0;right:0;height:2px;
  background:var(--accent);border-radius:1px;
}
.nav-share{color:var(--muted);text-decoration:none;font-size:.875rem;transition:color .2s;cursor:pointer}
.nav-share:hover{color:var(--accent)}

/* --- PRO-FOLD (v1.2 component) --- */
.pro-fold{
  margin-bottom:16px;padding:10px 14px;
  background:rgba(255,255,255,.02);border:1px dashed var(--border);
  border-radius:10px;cursor:pointer;transition:all .25s;
}
.pro-fold:hover{border-color:var(--accent);background:var(--accent-soft)}
.pro-fold-head{display:flex;align-items:center;justify-content:space-between;font-size:.8rem;color:var(--muted)}
.pro-fold-head .arrow{transition:transform .25s;font-size:.7rem}
.pro-fold.open .arrow{transform:rotate(90deg)}
.pro-fold-body{
  display:none;margin-top:10px;padding:12px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:10px;font-size:.82rem;color:var(--muted);line-height:1.8;
}
.pro-fold.open .pro-fold-body{display:block}
.pro-fold-body strong{color:var(--fg);font-weight:500}
.pro-fold-body .source{font-size:.72rem;color:var(--accent);margin-top:6px;font-style:italic}

/* --- BOTTOM NAV (required on all sub-pages) --- */
.bottom-nav{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin:24px 0 32px}
.bottom-nav a{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:10px 20px;
  font-size:.85rem;color:var(--muted);transition:all .2s;
}
.bottom-nav a:hover{border-color:var(--accent);color:var(--accent)}

/* --- FOOTER (required on all sub-pages) --- */
.site-footer{text-align:center;padding:24px 0;font-size:.78rem;color:var(--muted);border-top:1px solid var(--border)}

/* --- SECTION TITLE --- */
.section-title{font-family:var(--font-display);font-size:1.15rem;font-weight:600;margin-bottom:16px;color:var(--fg)}

/* --- ACTION GRID (do/don't) --- */
.actions-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.action-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.action-box h4{font-size:.9rem;margin-bottom:12px;display:flex;align-items:center;gap:6px}
.action-box.do h4{color:var(--auspicious)}.action-box.dont h4{color:var(--inauspicious)}
.action-box ul{list-style:none;padding:0}
.action-box li{font-size:.85rem;color:var(--muted);padding:6px 0;border-bottom:1px solid var(--border);line-height:1.6}
.action-box li:last-child{border-bottom:none}
.action-box li::before{content:'• ';color:var(--accent);font-weight:700}

/* --- CARD (generic) --- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;margin-bottom:24px}

/* --- BTN-CAST (primary action button) --- */
.btn-cast{
  display:block;width:100%;max-width:400px;margin:0 auto;
  background:linear-gradient(135deg,var(--accent-soft),rgba(212,168,83,.18));
  border:1px solid var(--accent);color:var(--accent);
  padding:14px 32px;border-radius:var(--radius-sm);font-size:.95rem;font-weight:600;
  cursor:pointer;transition:all .25s;text-align:center;
}
.btn-cast:hover{background:var(--accent);color:var(--bg)}

/* --- GLOSSARY TOOLTIP --- */
.glossary-term{cursor:help;border-bottom:1px dotted var(--accent);transition:color .15s}
.glossary-term:hover{color:var(--accent)}
#glossary-popover{
  position:fixed;z-index:9999;
  max-width:300px;padding:12px 16px;
  background:var(--surface);border:1px solid var(--accent);
  border-radius:var(--radius-sm);box-shadow:0 8px 32px rgba(0,0,0,.5);
  font-size:.82rem;color:var(--fg);line-height:1.65;
  opacity:0;pointer-events:none;transition:opacity .15s;
}
#glossary-popover.show{opacity:1;pointer-events:auto}
#glossary-popover .gp-term{font-weight:700;color:var(--accent);margin-bottom:6px;font-size:.85rem}
#glossary-popover .gp-close{
  position:absolute;top:6px;right:10px;
  background:none;border:none;color:var(--muted);cursor:pointer;font-size:.9rem;
}
#glossary-popover .gp-close:hover{color:var(--fg)}

/* --- ACCESSIBILITY --- */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* --- RESPONSIVE --- */
@media(max-width:600px){
  .topnav nav{display:none}
  .actions-grid{grid-template-columns:1fr}
}