/* ProPreFrench — shared design system (home, app, legal) */
:root{
  --bg:#F5F8F6; --surface:#FFFFFF; --tint:#EBF1ED; --line:#DCE5E0;
  --ink:#14231C; --muted:#56675E;
  --spruce:#1F4D3A; --spruce-2:#2E6B52; --spruce-soft:#E0EEE6;
  --maple:#C8372D; --maple-soft:#F8E4E1;
  --gold:#B7860B; --gold-soft:#FBF1D6;
  --focus:#2563EB;
  --panel:#1F4D3A; --panel-ink:#FFFFFF;
  --shadow:0 1px 2px rgba(20,35,28,.05),0 4px 14px rgba(20,35,28,.06);
  --shadow-l:0 10px 30px rgba(20,35,28,.10);
  --r-s:8px; --r-m:14px; --r-l:22px;
  --display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --body:"Atkinson Hyperlegible","Segoe UI",system-ui,sans-serif;
  --head-h:68px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0F1714; --surface:#16211C; --tint:#1C2A24; --line:#2A3B33;
    --ink:#E8EFEA; --muted:#9DB0A6;
    --spruce:#7CC4A0; --spruce-2:#9AD6B6; --spruce-soft:#1B3428;
    --maple:#F08A80; --maple-soft:#3A2321; --gold:#E9C46A; --gold-soft:#3A3120;
    --focus:#7FA7FF; --panel:#1B3A2E; --panel-ink:#E8EFEA;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 4px 14px rgba(0,0,0,.25); --shadow-l:0 10px 30px rgba(0,0,0,.35);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0F1714; --surface:#16211C; --tint:#1C2A24; --line:#2A3B33;
  --ink:#E8EFEA; --muted:#9DB0A6;
  --spruce:#7CC4A0; --spruce-2:#9AD6B6; --spruce-soft:#1B3428;
  --maple:#F08A80; --maple-soft:#3A2321; --gold:#E9C46A; --gold-soft:#3A3120;
  --focus:#7FA7FF; --panel:#1B3A2E; --panel-ink:#E8EFEA;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 4px 14px rgba(0,0,0,.25); --shadow-l:0 10px 30px rgba(0,0,0,.35);
  color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--head-h) + 12px)}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 var(--body);transition:background .25s,color .25s}
img{max-width:100%}
a{color:var(--spruce)}
h1,h2,h3{font-family:var(--display);line-height:1.1;letter-spacing:-.015em;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,5vw,3.6rem);font-weight:800}
h2{font-size:clamp(1.6rem,3.2vw,2.3rem);font-weight:800}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1em;max-width:68ch}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.small{font-size:.9rem}
.eyebrow{font:700 .78rem/1 var(--body);letter-spacing:.12em;text-transform:uppercase;color:var(--spruce);margin:0 0 10px}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.top{display:flex;align-items:center;justify-content:space-between;min-height:var(--head-h);gap:14px}
.logo{font-family:var(--display);font-weight:800;font-size:1.3rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px;letter-spacing:-.02em;white-space:nowrap}
.logo img{width:36px;height:36px;display:block}
.logo .wm b{color:var(--spruce);font-weight:800}
.nav{display:flex;gap:6px;align-items:center}
.nav a:not(.btn){color:var(--ink);text-decoration:none;font-weight:700;font-size:.95rem;padding:8px 12px;border-radius:999px;transition:background .2s}
.nav a:not(.btn):hover{background:var(--tint)}
.theme-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:1.05rem;cursor:pointer;flex:none;transition:transform .2s}
.theme-btn:hover{transform:rotate(-15deg)}
@media (max-width:820px){.hide-m{display:none!important}}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:2px solid var(--spruce);background:var(--spruce);color:var(--bg);
  font:700 1rem/1 var(--body);padding:13px 22px;border-radius:999px;cursor:pointer;text-decoration:none;transition:transform .15s,background .2s,box-shadow .2s;white-space:nowrap}
.btn:hover{background:var(--spruce-2);border-color:var(--spruce-2);transform:translateY(-1px);box-shadow:var(--shadow)}
.btn:active{transform:translateY(0)}
.btn.ghost{background:transparent;color:var(--spruce)}
.btn.ghost:hover{background:var(--spruce-soft)}
.btn.small{padding:9px 16px;font-size:.92rem}
.btn.light{background:#fff;border-color:#fff;color:#1F4D3A}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- cards & badges ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);box-shadow:var(--shadow)}
.lvl{display:inline-block;font:700 .78rem/1 var(--body);padding:5px 9px;border-radius:999px;background:var(--tint);color:var(--ink)}
.badge{display:inline-flex;align-items:center;gap:5px;font:700 .74rem/1 var(--body);padding:5px 9px;border-radius:999px;letter-spacing:.02em}
.badge.free{background:var(--spruce-soft);color:var(--spruce)}
.badge.pro{background:var(--gold-soft);color:var(--gold)}

/* module cards (home + dashboard) */
.modgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:900px){.modgrid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:540px){.modgrid{grid-template-columns:1fr}}
.mod{position:relative;display:flex;flex-direction:column;gap:6px;padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  color:var(--ink);text-decoration:none;text-align:left;font:inherit;cursor:pointer;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s,border-color .2s}
.mod:hover{transform:translateY(-3px);box-shadow:var(--shadow-l);border-color:var(--spruce)}
.mod .ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:1.45rem;background:var(--c,var(--spruce-soft));margin-bottom:6px}
.mod h3{margin:0;font-size:1.12rem}
.mod p{margin:0;color:var(--muted);font-size:.93rem;line-height:1.5}
.mod .meta{margin-top:auto;padding-top:10px;display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.mod .go{position:absolute;top:18px;right:18px;color:var(--muted);transition:transform .2s,color .2s}
.mod:hover .go{transform:translateX(3px);color:var(--spruce)}

/* ---------- answer options ---------- */
.opts{display:grid;gap:10px;margin:14px 0}
.opt{display:flex;gap:12px;align-items:flex-start;text-align:left;width:100%;background:var(--surface);color:var(--ink);
  border:2px solid var(--line);border-radius:var(--r-m);padding:12px 14px;font:400 1rem/1.45 var(--body);cursor:pointer;transition:border-color .15s,background .15s,transform .1s}
.opt:hover:not([disabled]){border-color:var(--spruce);transform:translateX(2px)}
.opt .bub{flex:none;width:28px;height:28px;border-radius:50%;border:2px solid currentColor;display:grid;place-items:center;font-weight:700;font-size:.85rem;color:var(--muted)}
.opt.right{border-color:var(--spruce);background:var(--spruce-soft)}
.opt.right .bub{background:var(--spruce);border-color:var(--spruce);color:var(--bg)}
.opt.wrong{border-color:var(--maple);background:var(--maple-soft)}
.opt.wrong .bub{background:var(--maple);border-color:var(--maple);color:var(--bg)}
.opt[disabled]{cursor:default}
.passage{background:var(--tint);border-radius:var(--r-m);padding:16px 18px;white-space:pre-line}
.explain{border-left:4px solid var(--spruce);padding:10px 14px;margin-top:10px;background:var(--spruce-soft);border-radius:0 var(--r-s) var(--r-s) 0;animation:fadeUp .25s ease}

/* ---------- footer ---------- */
footer.site{border-top:1px solid var(--line);margin-top:72px;padding:36px 0 44px;color:var(--muted);font-size:.9rem;background:var(--surface)}
footer.site a{color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;margin-bottom:22px}
.foot-grid h4{font:700 .8rem var(--body);letter-spacing:.1em;text-transform:uppercase;color:var(--ink);margin:0 0 10px}
.foot-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.foot-grid a{text-decoration:none}.foot-grid a:hover{color:var(--spruce)}
@media (max-width:720px){.foot-grid{grid-template-columns:1fr 1fr}.foot-grid>:first-child{grid-column:1/-1}}

/* ---------- mobile bottom bar ---------- */
.bnav{display:none}
@media (max-width:760px){
  .bnav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--surface);border-top:1px solid var(--line);
    padding:6px 4px calc(6px + env(safe-area-inset-bottom,0px));box-shadow:0 -6px 20px rgba(0,0,0,.06)}
  .bnav a,.bnav button{display:flex;flex-direction:column;align-items:center;gap:2px;border:0;background:none;color:var(--muted);text-decoration:none;font:700 .7rem var(--body);padding:4px 0;cursor:pointer}
  .bnav i{font-style:normal;font-size:1.25rem;line-height:1}
  .bnav .on{color:var(--spruce)}
  body.has-bnav{padding-bottom:72px}
}

/* ---------- motion ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}