/* ===========================================================
   Miljökunskap studieapp — "field notebook" aesthetic
   Warm paper, deep forest greens, ochre accent.
   =========================================================== */
:root{
  --paper:#f4efe3;
  --paper-2:#efe8d8;
  --ink:#23291f;
  --ink-soft:#4a5340;
  --forest:#1f3d2b;
  --forest-2:#2f5a3f;
  --moss:#5e7d4f;
  --ochre:#c2772a;
  --ochre-deep:#9a5a18;
  --clay:#a8462e;
  --line:#d9cfb8;
  --line-2:#c9bd9f;
  --card:#fbf8f0;
  --shadow:0 8px 30px rgba(31,61,43,.12);
  --shadow-sm:0 2px 10px rgba(31,61,43,.10);
  --r:14px;
  --display:"Fraunces",Georgia,serif;
  --body:"Hanken Grotesk",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--body);
  color:var(--ink);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(94,125,79,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(194,119,42,.08), transparent 60%),
    var(--paper);
  background-attachment:fixed;
  min-height:100vh;
  line-height:1.55;
}

/* subtle paper grain */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Topbar ---------- */
.topbar{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.7rem 1.4rem;
  background:rgba(244,239,227,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-2);
}
.brand{display:flex;align-items:center;gap:.8rem}
.brand .leaf{font-size:1.8rem;color:var(--moss);line-height:1;transform:translateY(2px)}
.brand h1{
  font-family:var(--display);font-weight:800;font-size:1.5rem;margin:0;
  letter-spacing:-.02em;color:var(--forest);
}
.brand .sub{margin:0;font-size:.78rem;color:var(--ink-soft);letter-spacing:.02em}

.tabs{display:flex;gap:.3rem;background:var(--paper-2);padding:.28rem;border-radius:999px;border:1px solid var(--line-2)}
.tab{
  font-family:var(--body);font-weight:600;font-size:.92rem;
  border:none;background:transparent;color:var(--ink-soft);
  padding:.5rem 1.15rem;border-radius:999px;cursor:pointer;transition:.18s;
}
.tab:hover{color:var(--forest)}
.tab.active{background:var(--forest);color:#f4efe3;box-shadow:var(--shadow-sm)}

/* ---------- Views ---------- */
main{position:relative;z-index:1}
.view{display:none;animation:fade .35s ease}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.btn{
  font-family:var(--body);font-weight:600;font-size:.86rem;cursor:pointer;
  background:var(--forest);color:#f4efe3;border:none;
  padding:.5rem .95rem;border-radius:9px;transition:.16s;
}
.btn:hover{background:var(--forest-2);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--forest);border:1px solid var(--line-2)}
.btn.ghost:hover{background:var(--paper-2)}
.hint{font-size:.82rem;color:var(--ink-soft);margin:0}

/* ---------- Mindmap ---------- */
.mm-toolbar{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  padding:.8rem 1.4rem;border-bottom:1px solid var(--line);
}
.mm-controls{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap}
.mm-controls input{
  font-family:var(--body);font-size:.86rem;padding:.5rem .8rem;border-radius:9px;
  border:1px solid var(--line-2);background:var(--card);color:var(--ink);min-width:170px;
}
.mm-stage{position:relative;height:calc(100vh - 165px);overflow:hidden;background:
  radial-gradient(circle at 50% 45%, rgba(255,255,255,.5), transparent 70%);}
#mindmap{width:100%;height:100%;cursor:grab;touch-action:none}
#mindmap.grabbing{cursor:grabbing}

.mm-node{cursor:pointer}
.mm-node text{font-family:var(--body);font-weight:600;fill:var(--ink);pointer-events:none}
.edge{fill:none;stroke:var(--line-2);stroke-width:2}
.edge.cross{stroke:var(--moss);stroke-dasharray:3 7;stroke-width:1.6;opacity:.55}
.node-core{filter:drop-shadow(0 6px 14px rgba(31,61,43,.25))}
.node-core circle{fill:var(--forest);stroke:var(--moss);stroke-width:3}
.node-core text{fill:#f4efe3;font-family:var(--display);font-weight:800}
.branch rect{fill:var(--card);stroke:var(--line-2);stroke-width:1.6;transition:.15s}
.branch:hover rect{stroke:var(--ochre);fill:#fffaf0}
.branch.open rect{stroke:var(--ochre);fill:#fff5e6}
.leaf rect{fill:#fffdf8;stroke:var(--line-2);stroke-width:1.4}
.leaf:hover rect{stroke:var(--moss);fill:#f3f7ee}
.dot{fill:var(--ochre)}
.mm-node.dim{opacity:.18}

.mm-detail{
  position:absolute;top:1rem;right:1rem;width:min(380px,calc(100% - 2rem));
  max-height:calc(100% - 2rem);overflow:auto;
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);
  box-shadow:var(--shadow);padding:1.3rem 1.4rem;
  animation:slidein .25s ease;
}
@keyframes slidein{from{opacity:0;transform:translateX(12px)}to{opacity:1;transform:none}}
.mm-detail.hidden{display:none}
.mm-detail .close{position:absolute;top:.5rem;right:.7rem;border:none;background:none;font-size:1.5rem;color:var(--ink-soft);cursor:pointer;line-height:1}
.mm-detail h3{font-family:var(--display);font-weight:800;color:var(--forest);margin:.2rem 0 .4rem;font-size:1.25rem;padding-right:1rem}
.mm-detail .blurb{font-style:italic;color:var(--ochre-deep);margin:.2rem 0 .9rem;font-size:.9rem}
.mm-detail ul{margin:.4rem 0;padding-left:0;list-style:none}
.mm-detail li{padding:.55rem 0;border-top:1px solid var(--line)}
.mm-detail li b{display:block;color:var(--forest-2);font-size:.95rem;margin-bottom:.15rem}
.mm-detail li span{font-size:.88rem;color:var(--ink-soft)}

/* ---------- Quiz ---------- */
.quiz-wrap{max-width:780px;margin:0 auto;padding:1.6rem 1.4rem 3rem}
.quiz-head{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;margin-bottom:1rem}
.quiz-head h2{font-family:var(--display);font-weight:800;color:var(--forest);margin:0 0 .25rem;font-size:1.7rem;letter-spacing:-.02em}
.quiz-score{font-family:var(--display);font-weight:800;font-size:1.6rem;color:var(--ochre-deep);white-space:nowrap}

.quiz-filters{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:.9rem}
.chipf{
  font-family:var(--body);font-size:.78rem;font-weight:600;cursor:pointer;
  border:1px solid var(--line-2);background:var(--card);color:var(--ink-soft);
  padding:.34rem .7rem;border-radius:999px;transition:.14s;
}
.chipf:hover{border-color:var(--moss)}
.chipf.on{background:var(--moss);color:#fff;border-color:var(--moss)}

.quiz-actions{display:flex;align-items:center;gap:.8rem;flex-wrap:wrap;margin-bottom:1.1rem}
.chk{font-size:.84rem;color:var(--ink-soft);display:flex;align-items:center;gap:.35rem;cursor:pointer}

.quiz-card{
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);
  box-shadow:var(--shadow);padding:1.6rem 1.7rem;min-height:230px;
}
.q-cat{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--ochre-deep);background:#fbedd9;padding:.22rem .6rem;border-radius:999px;margin-bottom:.8rem}
.q-text{font-family:var(--display);font-size:1.32rem;font-weight:600;line-height:1.35;color:var(--ink);margin:0 0 1.1rem}
.opts{display:flex;flex-direction:column;gap:.55rem}
.opt{
  text-align:left;font-family:var(--body);font-size:.96rem;cursor:pointer;
  background:var(--paper);border:1.5px solid var(--line-2);color:var(--ink);
  padding:.75rem .95rem;border-radius:10px;transition:.14s;display:flex;gap:.6rem;align-items:flex-start;
}
.opt:hover{border-color:var(--moss);background:#f3f7ee}
.opt .mark{font-weight:700;color:var(--moss)}
.opt.correct{border-color:#2f7d4f;background:#e6f3e9}
.opt.wrong{border-color:var(--clay);background:#f7e7e2}
.opt:disabled{cursor:default}
.explain{margin-top:1rem;padding:.85rem 1rem;border-left:3px solid var(--moss);
  background:#f1f5ec;border-radius:0 10px 10px 0;font-size:.9rem;color:var(--ink-soft)}
.explain b{color:var(--forest-2)}

.open-answer{margin-top:1rem}
.reveal-btn{margin-bottom:.6rem}
.model{padding:1rem 1.1rem;background:#f1f5ec;border:1px solid #d6e3cb;border-radius:10px;font-size:.94rem;color:var(--ink)}
.model .label{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--moss);display:block;margin-bottom:.4rem}
.selfgrade{display:flex;gap:.6rem;margin-top:.9rem}
.selfgrade .btn{flex:0 0 auto}

.quiz-nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:1.2rem}
.progress{font-size:.86rem;color:var(--ink-soft);font-weight:600}

/* ---------- Kompendium ---------- */
.komp-layout{display:grid;grid-template-columns:270px 1fr;gap:0;align-items:start}
.komp-toc{position:sticky;top:64px;height:calc(100vh - 64px);overflow:auto;border-right:1px solid var(--line);padding:1.3rem 1rem 2rem}
.toc-inner input{width:100%;font-family:var(--body);font-size:.86rem;padding:.55rem .75rem;border-radius:9px;border:1px solid var(--line-2);background:var(--card);color:var(--ink);margin-bottom:.9rem}
#komp-nav{display:flex;flex-direction:column;gap:.1rem}
#komp-nav a{
  font-size:.88rem;color:var(--ink-soft);text-decoration:none;padding:.5rem .65rem;border-radius:8px;
  border-left:3px solid transparent;transition:.14s;line-height:1.3;
}
#komp-nav a:hover{background:var(--paper-2);color:var(--forest)}
#komp-nav a.active{background:#fff5e6;color:var(--ochre-deep);border-left-color:var(--ochre);font-weight:600}
#komp-nav a.hide{display:none}

.komp-body{padding:1.8rem 2.4rem 5rem;max-width:820px}
.komp-body section{margin-bottom:2.6rem;scroll-margin-top:80px}
.komp-body h3{
  font-family:var(--display);font-weight:800;color:var(--forest);font-size:1.55rem;
  letter-spacing:-.02em;margin:0 0 .8rem;padding-bottom:.4rem;border-bottom:2px solid var(--line);
}
.komp-body h4{font-family:var(--display);font-weight:600;color:var(--ochre-deep);font-size:1.1rem;margin:1.4rem 0 .4rem}
.komp-body p{margin:.6rem 0;font-size:1rem}
.komp-body ul,.komp-body ol{margin:.6rem 0;padding-left:1.3rem}
.komp-body li{margin:.32rem 0;font-size:.98rem}
.komp-body b,.komp-body strong{color:var(--forest-2)}
.komp-body section.hide{display:none}
.komp-body mark{background:#fbe6b8;color:inherit;padding:0 .1em;border-radius:3px}

.footnote{position:relative;z-index:1;text-align:center;font-size:.78rem;color:var(--ink-soft);
  padding:1.4rem;border-top:1px solid var(--line)}

/* ---------- Responsive ---------- */
@media (max-width:820px){
  .topbar{flex-direction:column;gap:.6rem;align-items:flex-start}
  .komp-layout{grid-template-columns:1fr}
  .komp-toc{position:relative;top:0;height:auto;max-height:none;border-right:none;border-bottom:1px solid var(--line)}
  .komp-body{padding:1.4rem 1.3rem 4rem}
  .mm-stage{height:calc(100vh - 220px)}
  .quiz-head{flex-direction:column;align-items:flex-start;gap:.4rem}
}

/* ---------- Hub back-link (till landningssidan) ---------- */
.hub-back{
  margin-right:auto;margin-left:1.1rem;align-self:center;
  font-family:var(--body);font-weight:700;font-size:.82rem;text-decoration:none;
  color:var(--forest);background:var(--card);border:1px solid var(--moss);
  padding:.34rem .8rem;border-radius:999px;transition:.16s;white-space:nowrap;
}
.hub-back:hover{color:#f4efe3;border-color:var(--forest);background:var(--forest)}
@media (max-width:820px){ .hub-back{margin-left:0;margin-right:0} }