/* Jugami Environmental Science (Rachel): "field station" theme. Moss, river, soil, sun. v1 */
:root{--paper:#f5f1e6;--paper2:#fffdf6;--ink:#1d2a22;--ink2:#4a5a4f;--deep:#173a2a;--moss:#2e5e3a;--leaf:#8cc06b;--leafL:#dcebcf;--river:#1f6f8b;--riverL:#d3e8ef;--soil:#7a4e2d;--sun:#e7a72b;--sunL:#fbecc8;--line:#d8d1bd;--radius:12px;--serif:Georgia,"Iowan Old Style","Palatino Linotype",Palatino,serif;--sans:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:var(--serif);font-size:18px;line-height:1.65}
a{color:var(--river);text-underline-offset:2px}a:hover{color:var(--soil)}
img,svg{max-width:100%}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px}.skip:focus{left:8px;background:var(--sun);color:var(--deep);padding:8px 12px;min-height:44px;display:inline-flex;align-items:center;box-sizing:border-box;z-index:9;font-family:var(--sans);font-weight:bold}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--sun);outline-offset:2px}
.wrap{max-width:1080px;margin:0 auto;padding:0 18px}
.site-head{background:var(--deep);color:#fff;border-bottom:5px solid var(--leaf)}
.bar{display:flex;align-items:center;gap:12px;padding:10px 0;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;min-height:44px;gap:10px;color:#fff;text-decoration:none;font-family:var(--sans);font-weight:700;font-size:1.1rem;letter-spacing:.02em}
.brand img{width:38px;height:38px}.brand:hover{color:var(--leafL)}
.head-nav{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap;font-family:var(--sans)}
.head-nav a{color:#fff;text-decoration:none;font-size:15px;padding:6px 11px;border:1px solid rgba(255,255,255,.45);border-radius:999px;min-height:44px;box-sizing:border-box;display:inline-flex;align-items:center}
.head-nav a:hover{background:var(--leafL);color:var(--deep)}
.crumbs{font-family:var(--sans);font-size:15px;margin:12px 0 0;color:var(--ink2)}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li{display:inline-flex;align-items:center}
.crumbs li+li::before{content:"›";margin-right:6px;color:var(--soil)}
.crumbs a{min-height:44px;display:inline-flex;align-items:center}
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:center;padding:16px 0 4px}
.hero h1{font-family:var(--sans);font-size:clamp(2.2rem,6vw,3.5rem);line-height:1.05;margin:.1em 0 .15em;color:var(--deep);letter-spacing:-.01em}
.kicker{font-family:var(--sans);text-transform:uppercase;letter-spacing:.14em;font-size:.9rem;color:var(--soil);margin:0;font-weight:700}
.tag{font-style:italic;color:var(--ink2);font-size:1.18rem;margin:0 0 .6em}
.hero figure{margin:0}.hero svg{width:100%;height:auto;display:block;border-radius:var(--radius)}
.prose{max-width:38em}.prose p{margin:.65em 0}
h2{font-family:var(--sans);font-size:1.7rem;color:var(--deep);margin:54px 0 10px;scroll-margin-top:12px;padding-bottom:6px;border-bottom:3px solid var(--leafL)}
h3{font-family:var(--sans);font-size:1.2rem;color:var(--moss);margin:1.1em 0 .35em}
.btns{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}
.btn{font:inherit;font-family:var(--sans);font-size:16px;font-weight:600;background:var(--moss);color:#fff;border:2px solid var(--moss);border-radius:999px;padding:9px 16px;cursor:pointer;text-decoration:none;display:inline-block;min-height:44px}
.btn:hover{background:var(--deep);border-color:var(--deep);color:#fff}
.btn.alt{background:transparent;color:var(--moss)}.btn.alt:hover{background:var(--leafL);color:var(--deep)}
.toc{list-style:none;padding:0;margin:14px 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px;font-family:var(--sans)}
.toc a{display:block;height:100%;padding:10px 12px;background:var(--paper2);border:1px solid var(--line);border-top:5px solid var(--leaf);border-radius:8px;text-decoration:none;color:var(--ink);font-size:16px}
.toc a:hover,.toc a:focus{border-top-color:var(--sun)}
.toc b{display:block;color:var(--soil);font-size:.85rem;letter-spacing:.1em}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin:14px 0}
.grid.g2{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.card{background:var(--paper2);border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px;box-shadow:0 2px 0 var(--line)}
.card h3{margin-top:.2em}.card p{margin:.4em 0}
.card .lbl{font-family:var(--sans);font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;color:var(--soil);font-weight:700}
.units{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:16px;margin:16px 0}
.units .card{position:relative}
.units .card.soon{background:transparent;border-style:dashed;box-shadow:none;color:var(--ink2)}
.units svg{width:64px;height:64px;display:block;margin:4px 0}
.pill{display:inline-block;font-family:var(--sans);font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:3px 10px;border-radius:999px;background:var(--line);color:var(--ink)}
.pill.on{background:var(--moss);color:#fff}
.callout{border-left:6px solid var(--sun);background:var(--sunL);padding:10px 16px;margin:18px 0;max-width:42em;border-radius:0 8px 8px 0}
.callout.how{border-left-color:var(--river);background:var(--riverL)}
.callout h3{margin-top:.3em}
figure.diagram{margin:18px 0;background:var(--paper2);border:1px solid var(--line);border-radius:var(--radius);padding:12px}
figure.diagram svg{display:block;width:100%;height:auto}
figure.diagram figcaption{font-family:var(--sans);font-size:15px;color:var(--ink2);margin-top:8px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}
.tbl-wrap{overflow-x:auto;margin:14px 0}
table{border-collapse:collapse;width:100%;background:var(--paper2);font-size:16.5px}
th,td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
thead th{background:var(--moss);color:#fff;font-family:var(--sans)}
tbody th{color:var(--soil);font-family:var(--sans)}
.steps{counter-reset:s;list-style:none;padding:0;max-width:42em}
.steps li{counter-increment:s;position:relative;padding:0 0 12px 46px}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;background:var(--river);color:#fff;font-family:var(--sans);font-weight:700;display:flex;align-items:center;justify-content:center}
/* tool */
.tool{background:var(--paper2);border:2px solid var(--moss);border-radius:var(--radius);padding:14px 18px;margin:18px 0}
.tool label{font-family:var(--sans);font-weight:600;display:block;margin:6px 0 4px}
.tool input[type=number],.tool input[type=range]{font:inherit;font-size:17px}
.tool input[type=number]{width:11em;height:44px;box-sizing:border-box;padding:6px 8px;border:1px solid var(--ink2);border-radius:6px}
.tool input[type=range]{width:100%;max-width:340px;height:44px;margin:0}
.pyr{list-style:none;padding:0;margin:12px 0;font-family:var(--sans)}
.pyr li{margin:6px auto;padding:8px 10px;border-radius:6px;text-align:center;color:#fff;font-size:15.5px;min-width:12em;transition:width .2s}
.pyr .l1{background:#2e5e3a}.pyr .l2{background:#456c2c}.pyr .l3{background:#8a5d1c}.pyr .l4{background:#7a4e2d}.pyr .l5{background:#5b3a22}
.out{font-family:var(--sans);font-weight:600;color:var(--moss)}
/* quiz */
.quiz fieldset{border:1px solid var(--line);border-radius:10px;padding:10px 16px 12px;margin:0 0 14px;background:var(--paper2)}
.quiz legend{font-weight:bold;padding:0 6px;font-family:var(--sans);font-size:17px}
.quiz label{display:flex;align-items:center;flex-wrap:wrap;gap:0 6px;padding:6px 8px;margin:3px 0;border-radius:6px;cursor:pointer;min-height:44px;box-sizing:border-box}
.quiz .opt{font-weight:700;font-family:var(--sans);min-width:1.4em}
.quiz .otext{flex:1 1 12em}
.quiz .mark{font-family:var(--sans);font-weight:700;font-size:15px;white-space:nowrap;margin-left:auto}
.quiz label.right .mark{color:#1e5e39}.quiz label.wrong .mark{color:#8f3c1f}
.quiz label:hover{background:var(--leafL)}
.quiz input{margin:0 4px 0 0;transform:scale(1.15);flex:none}
.quiz label.right{background:#d5ecd0;outline:2px solid #2e7d4f}
.quiz label.wrong{background:#f6d8cc;outline:2px solid #b4532f}
.fb{margin:.3em 0 0;font-style:italic;color:var(--moss);min-height:1.2em}
.score{font-family:var(--sans);font-weight:700;color:var(--soil)}
details.key{background:var(--paper2);border:1px solid var(--line);border-radius:10px;padding:8px 16px;margin:14px 0}
details.key summary{cursor:pointer;font-family:var(--sans);font-weight:700;color:var(--moss);min-height:44px;display:flex;align-items:center;list-style:none}
details.key summary::-webkit-details-marker{display:none}
details.key summary::before{content:"▸";margin-right:8px;display:inline-block;transition:transform .2s}
details.key[open] summary::before{transform:rotate(90deg)}
dl.vocab{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:4px 24px;margin:12px 0}
dl.vocab div{padding:8px 0;border-bottom:1px dashed var(--line)}
dl.vocab dt{font-family:var(--sans);font-weight:700;color:var(--deep)}
dl.vocab dd{margin:0}
ol.disc li{margin:.55em 0}
.sources li{margin:.45em 0;font-size:16px;overflow-wrap:anywhere}
.pager{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-family:var(--sans);margin:42px 0 10px;padding:12px 0;border-top:3px solid var(--leafL);border-bottom:3px solid var(--leafL)}
.pager a,.pager span{padding:6px 0;min-height:44px;display:inline-flex;align-items:center;box-sizing:border-box}.pager .off{color:var(--ink2)}
.site-foot{background:var(--deep);color:#e8efe9;margin-top:34px;padding:20px 0 30px;text-align:center;font-size:16px;font-family:var(--sans)}
.site-foot a{color:#fff;padding:4px 2px;min-height:44px;display:inline-flex;align-items:center;box-sizing:border-box}
.jugami-more{margin-top:8px;line-height:2}
.colophon{font-size:14.5px;color:#c9d6cc}
@media (max-width:800px){.hero,.two{grid-template-columns:1fr}body{font-size:17px}.head-nav{margin-left:0}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.pyr li{transition:none}}
[hidden]{display:none!important}
@media (max-width:640px){figure.diagram{overflow-x:auto;-webkit-overflow-scrolling:touch}figure.diagram svg{min-width:580px}figure.diagram figcaption{position:sticky;left:0;max-width:calc(100vw - 72px)}figure.diagram figcaption::before{content:"Swipe sideways to see the whole diagram. ";font-weight:700}}