/* ===========================================================
   Reed Library — Information Literacy Badges
   Green-forward sibling of the Lo-Fi system. Responsive + a11y.
   =========================================================== */

:root{
  --ink:#16271C;
  --ink-soft:#3C5446;
  --green:#1F7A4D;        /* primary */
  --green-deep:#12513A;   /* darker */
  --green-lite:#4FAE73;
  --teal:#0E7C6B;
  --teal-deep:#0A5E52;
  --bar-green:#CDE8D6;
  --bar-teal:#CCE7E1;
  --zone-green:#E3F4E8;
  --zone-teal:#E0F2EE;
  --gold:#C98A2B;         /* warm accent for kickers */
  --panel:#FFFFFF;
  --page-1:#E4F3E8;
  --page-2:#E1F1EC;
  --shadow:rgba(18,81,58,.16);
  --shadow-lg:rgba(18,81,58,.24);
  --radius:22px;
  --maxw:1180px;

  /* Badge palette (AI Literacy canonical green) */
  --b-edge:#5CAE63;
  --b-body:#7CC678;
  --b-ribbon:#1C7A50;
  --b-tail:#0E6A48;
  --b-text:#F3EBC9;
  --b-line:#FBFDF6;
  --b-emblem:#12180F;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:92px;}
body{
  margin:0;
  font-family:"Nunito Sans",system-ui,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(120% 50% at 10% 0%, var(--page-1) 0%, transparent 55%),
    radial-gradient(120% 60% at 96% 100%, var(--page-2) 0%, transparent 50%),
    linear-gradient(165deg, var(--page-1) 0%, #eaf5ec 45%, var(--page-2) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
}
main,header,footer,nav{position:relative;z-index:1;}

h1,h2,h3,h4{font-family:"Baloo 2",system-ui,sans-serif;margin:0;line-height:1.06;letter-spacing:-.01em;}
p{margin:0;}
a{color:var(--green-deep);}
img,svg{display:block;max-width:100%;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* visible focus for keyboard users */
a:focus-visible,button:focus-visible,.btn:focus-visible,[tabindex]:focus-visible{
  outline:3px solid var(--teal);outline-offset:3px;border-radius:6px;
}

/* skip link */
.skip{position:absolute;left:12px;top:-60px;background:var(--green);color:#fff;padding:10px 16px;border-radius:10px;font-weight:800;z-index:200;transition:top .15s;}
.skip:focus{top:12px;}

/* ---------- Top nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(10px);border-bottom:2px solid #fff;box-shadow:0 2px 14px rgba(18,81,58,.08);}
.nav__in{max-width:var(--maxw);margin:0 auto;padding:12px 24px;display:flex;align-items:center;gap:18px;}
.nav__brand{display:flex;align-items:center;gap:11px;font-family:"Baloo 2";font-weight:800;font-size:19px;color:var(--green-deep);text-decoration:none;margin-right:auto;}
.nav__brand .mk{width:30px;height:30px;flex:none;}
.nav__links{display:flex;align-items:center;gap:6px;}
.nav__links a{font-family:"Nunito Sans";font-weight:700;font-size:15px;color:var(--ink-soft);text-decoration:none;padding:8px 13px;border-radius:999px;transition:background .15s,color .15s;}
.nav__links a:hover{background:var(--bar-green);color:var(--green-deep);}
.nav__links a.cta{background:var(--green);color:#fff;}
.nav__links a.cta:hover{background:var(--green-deep);color:#fff;}
.nav__toggle{display:none;border:none;background:var(--bar-green);color:var(--green-deep);font-weight:800;border-radius:10px;padding:9px 12px;font-size:16px;cursor:pointer;}

/* ---------- Window-panel card ---------- */
.win{background:var(--panel);border-radius:var(--radius);border:3px solid #fff;box-shadow:0 8px 0 var(--shadow);overflow:hidden;}
.win__bar{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;background:var(--bar-green);}
.win--teal .win__bar{background:var(--bar-teal);}
.win__head{display:flex;align-items:center;gap:12px;min-width:0;}
.win__title{font-family:"Baloo 2";font-weight:700;font-size:22px;color:var(--ink);line-height:1;}
.win__dots{display:flex;gap:8px;flex:none;}
.win__dots i{width:15px;height:15px;border-radius:5px;border:2.5px solid #7bbf94;}
.win--teal .win__dots i{border-color:#76bcb1;}
.win__body{padding:22px 22px 24px;}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:"Baloo 2";font-weight:700;font-size:17px;text-decoration:none;border:none;cursor:pointer;border-radius:999px;padding:13px 24px;transition:transform .12s, box-shadow .12s, background .15s;}
.btn--primary{background:var(--green);color:#fff;box-shadow:0 5px 0 var(--shadow-lg);}
.btn--primary:hover{background:var(--green-deep);transform:translateY(-2px);box-shadow:0 7px 0 var(--shadow-lg);}
.btn--ghost{background:#fff;color:var(--green-deep);box-shadow:0 4px 0 var(--shadow);}
.btn--ghost:hover{transform:translateY(-2px);box-shadow:0 6px 0 var(--shadow);}
.btn--teal{background:var(--teal);color:#fff;box-shadow:0 5px 0 rgba(10,94,82,.3);}
.btn--teal:hover{background:var(--teal-deep);transform:translateY(-2px);}
.btn--sm{font-size:15px;padding:10px 18px;}
.btn[aria-disabled="true"]{opacity:.5;pointer-events:none;}

/* ---------- Chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:9px;}
.chip{font-family:"Baloo 2";font-weight:600;font-size:14.5px;color:var(--green-deep);background:var(--bar-green);border-radius:999px;padding:7px 15px;line-height:1.1;}
.chip--teal{color:var(--teal-deep);background:var(--bar-teal);}

/* ---------- Section scaffolding ---------- */
.section{padding:52px 0;}
.section__kicker{font-family:"Nunito Sans";font-weight:800;letter-spacing:.15em;text-transform:uppercase;font-size:14px;color:var(--gold);margin:0 0 10px;}
.section__title{font-family:"Baloo 2";font-weight:800;font-size:clamp(28px,4vw,44px);color:var(--green-deep);}
.section__lead{font-size:clamp(17px,2.2vw,20px);color:var(--ink-soft);max-width:64ch;margin-top:14px;font-weight:600;}

/* ---------- Footer ---------- */
.foot{margin-top:40px;border-top:2px solid #fff;background:rgba(255,255,255,.62);}
.foot__in{max-width:var(--maxw);margin:0 auto;padding:34px 24px;display:flex;flex-wrap:wrap;gap:24px 48px;align-items:flex-start;}
.foot__brand{font-family:"Baloo 2";font-weight:800;font-size:21px;color:var(--green-deep);display:flex;align-items:center;gap:10px;}
.foot small{color:var(--ink-soft);font-weight:600;font-size:14px;line-height:1.5;display:block;}

/* ---------- Reveal-on-scroll ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease, transform .6s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none;}}

/* ---------- Responsive nav ---------- */
@media (max-width:760px){
  .nav__links{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;background:#fff;padding:12px 16px 16px;border-bottom:2px solid var(--bar-green);box-shadow:0 10px 20px rgba(18,81,58,.12);display:none;}
  .nav__links.open{display:flex;}
  .nav__links a{padding:12px 14px;font-size:16px;}
  .nav__toggle{display:inline-block;}
}