/* Field Guide layout, night-ops colors: ranger green, sage and amber. Condensed headings, full width to 1600px. */
:root{
  --bg:#1b1f19; --paper:#262b23; --ink:#e8e4d6; --muted:#a9ab9a; --line:#3a4034;
  --spruce:#7a9a74; --spruce-ink:#141710; --blaze:#d9a441; --blaze-ink:#1b1f19; --water:#7fb2c4; --soft:#323a2e;
  --warnbg:#3d2a1c; --warn:#f0a06a; --okbg:#2c3a26; --ember:#c98b4a; --trap:#a9a0cf; --leaf:#93b08c;
  --display:"Barlow Condensed","Arial Narrow",Arial,sans-serif; --body:"Source Sans 3",system-ui,sans-serif; --mono:"IBM Plex Mono",ui-monospace,monospace;
  color-scheme:dark;
}
/* Doug picked "night ops" (option B, 2026-10-16): dark ranger green, sage buttons, amber accent, in light and dark system settings alike. */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 var(--body);min-height:100dvh;display:flex;flex-direction:column}
h1,h2,h3{font-family:var(--display);margin:0;line-height:1.1;text-wrap:balance;letter-spacing:.01em}
h1{font-size:2.2rem} h2{font-size:1.6rem} h3{font-size:1.2rem;font-weight:600}
p{margin:0}
a{color:var(--spruce);text-decoration:none;font-weight:600}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,label:focus-within{outline:2px solid var(--blaze);outline-offset:2px}
button{font:inherit;color:inherit}
img{max-width:100%}
[hidden]{display:none!important}
.gutter,.bar,.topnav,.wrap,.foot{padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}

/* top bar and the four big buttons */
.bar{position:sticky;top:0;z-index:5;display:grid;grid-template-columns:40px minmax(0,1fr) auto;align-items:center;gap:8px;padding-block:8px;background:var(--paper);border-bottom:1px solid var(--line)}
.back{font:600 1.5rem var(--body);line-height:1;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:8px}
.back[hidden]{display:block!important;visibility:hidden}
.brand{font:700 1.25rem var(--display);color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.zipchip{font:500 .8rem var(--mono);background:var(--soft);color:var(--spruce);border:0;padding:8px 12px;border-radius:99px;cursor:pointer;white-space:nowrap}
.topnav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;max-width:1600px;width:100%;margin:0 auto;padding-block:12px 0}
.topnav a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:60px;padding:6px 4px;border-radius:10px;background:var(--paper);border:1px solid var(--line);color:var(--ink);font:600 .95rem var(--body);text-align:center;line-height:1.1}
.topnav a i{font-style:normal;font-size:1.3rem;line-height:1;color:var(--spruce)}
.topnav a.on{background:var(--spruce);color:var(--spruce-ink);border-color:var(--spruce)}
.topnav a.on i{color:inherit}
@media (max-width:420px){.topnav a{font-size:.85rem}}

.wrap{width:100%;max-width:1600px;margin:0 auto;padding-block:18px 28px;display:flex;flex-direction:column;gap:20px;flex:1}
.wrap:focus{outline:none}
.lede{color:var(--muted);font-size:1.05rem;max-width:80ch}
.eyebrow{font:500 .76rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--spruce)}
.step{display:flex;flex-direction:column;gap:10px}
.hint{color:var(--muted);font-size:.93rem}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 16px;padding-block:14px 18px;font-size:.85rem;color:var(--muted);max-width:1600px;width:100%;margin:0 auto}

/* doors, courses, progress */
.doors{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
@media (max-width:760px){.doors{grid-template-columns:1fr}}
.door{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:6px;min-width:0;min-height:112px;color:var(--ink);font-weight:400}
.door b{font-family:var(--display);font-size:1.35rem}
.door span{color:var(--muted);font-size:.92rem}
.door.main{background:var(--spruce);color:var(--spruce-ink);border-color:var(--spruce)}
.door.main span{color:inherit;opacity:.85}
.courses{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
@media (max-width:1100px){.courses{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.courses{grid-template-columns:repeat(2,minmax(0,1fr))}.course .img{height:64px}.course b{font-size:1.1rem}}
.course{background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;min-width:0;color:var(--ink);font-weight:400}
.course .img{height:72px;display:flex;align-items:flex-end;padding:8px;background:color-mix(in srgb,var(--c,var(--spruce)) 30%,var(--paper));box-shadow:inset 4px 0 0 var(--c,var(--spruce))}
.course .tx{padding:12px;display:flex;flex-direction:column;gap:6px}
.course b{font-family:var(--display);font-size:1.2rem}
.c-spruce{--c:var(--spruce)}.c-blaze{--c:var(--blaze)}.c-water{--c:var(--water)}.c-ember{--c:var(--ember)}.c-trap{--c:var(--trap)}.c-leaf{--c:var(--leaf)}
.bar2{height:6px;background:var(--soft);border-radius:99px;overflow:hidden}
.bar2 i{display:block;height:100%;background:var(--blaze)}
.badge{display:inline-flex;align-items:center;gap:6px;font:600 .78rem var(--body);background:var(--bg);color:var(--ink);padding:3px 9px;border-radius:99px;width:max-content;max-width:100%}
.badge::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--blaze);flex:none}
.badge.done::before{background:var(--spruce)}
.rowx{display:flex;align-items:center;gap:12px}
.ring{width:52px;height:52px;border-radius:50%;background:conic-gradient(var(--blaze) 0 var(--pct,0%),var(--soft) var(--pct,0%) 100%);display:grid;place-items:center;flex:none}
.ring i{width:40px;height:40px;border-radius:50%;background:var(--paper);display:grid;place-items:center;font:700 .8rem var(--mono);font-style:normal}
.cont{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:12px 14px;display:flex;align-items:center;gap:12px;color:var(--ink);font-weight:400}
.cont b{font-family:var(--display);font-size:1.25rem;display:block}
.cont span{color:var(--muted);font-size:.9rem}
.cats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
@media (max-width:760px){.cats{grid-template-columns:repeat(2,minmax(0,1fr))}}
.cat{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:4px;align-items:flex-start;color:var(--ink);font-weight:400;min-height:96px}
.cat i{font-style:normal;font-size:1.5rem}
.cat b{font-family:var(--display);font-size:1.2rem}
.cat span{color:var(--muted);font-size:.88rem}

/* chips and buttons: equal rows */
.chips{display:grid;gap:8px;grid-template-columns:repeat(4,minmax(0,1fr))}
.chips.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.chips.six{grid-template-columns:repeat(6,minmax(0,1fr))}
@media (max-width:760px){.chips,.chips.six{grid-template-columns:repeat(2,minmax(0,1fr))}.chips.three{grid-template-columns:repeat(3,minmax(0,1fr))}}
.chip{position:relative;display:flex;align-items:center;justify-content:center;text-align:center;min-height:48px;padding:8px 10px;border-radius:99px;background:var(--paper);border:1px solid var(--line);font:600 .95rem var(--body);cursor:pointer;line-height:1.2}
.chip input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.chip:has(input:checked){background:var(--spruce);border-color:var(--spruce);color:var(--spruce-ink)}
.chip:has(input:checked)::before{content:"\2713\00a0"}
.btnrow{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.btnrow.three{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:420px){.btnrow.three{grid-template-columns:1fr}}
.btn{display:flex;align-items:center;justify-content:center;text-align:center;min-height:48px;padding:10px;border-radius:8px;font:600 1rem var(--body);background:var(--paper);border:1px solid var(--line);color:var(--ink);cursor:pointer;position:relative;overflow:hidden}
.btn.main{background:var(--spruce);color:var(--spruce-ink);border-color:var(--spruce)}
.btn input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer}
.btn[aria-disabled=true]{opacity:.55;pointer-events:none}
.card{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:10px;min-width:0}
.safety{background:var(--warnbg);border:1px solid var(--warn);border-radius:8px;padding:10px 12px;font-size:.93rem;display:flex;flex-direction:column;gap:4px}
.safety b{color:var(--warn)}
.error{background:var(--warnbg);border:1px solid var(--warn);border-radius:8px;padding:10px 12px}
.busy{display:flex;align-items:center;gap:10px;color:var(--muted)}
.busy::before{content:"";width:18px;height:18px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--spruce);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.busy::before{animation:none}}
details>summary{cursor:pointer;list-style:none;font-weight:600;color:var(--spruce)}
details>summary::-webkit-details-marker{display:none}
details>summary::after{content:" \25BE"}
details[open]>summary::after{content:" \25B4"}
details .more{margin-top:8px;display:flex;flex-direction:column;gap:6px;font-size:.88rem;color:var(--muted)}
.src{font:500 .78rem var(--mono);color:var(--muted)}
.sample-tag{font:500 .74rem var(--mono);text-transform:uppercase;letter-spacing:.05em;background:var(--blaze);color:var(--blaze-ink);padding:3px 8px;border-radius:99px;width:max-content}

/* lessons */
.lessons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
@media (max-width:1000px){.lessons{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.lessons{grid-template-columns:1fr}}
.lcard{display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:8px;color:var(--ink);font-weight:400;min-height:96px}
.lcard img,.lcard .noimg{width:96px;height:80px;object-fit:cover;border-radius:6px;background:var(--soft)}
.lcard b{font-family:var(--display);font-size:1.15rem;font-weight:600;display:block}
.lcard span{font:500 .74rem var(--mono);text-transform:uppercase;color:var(--spruce)}
.lcard.done span::after{content:"  \2713 passed"}
.lsteps{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:12px;counter-reset:s}
.lsteps li{counter-increment:s;display:grid;grid-template-columns:34px minmax(0,1fr);gap:10px 12px;align-items:start;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:14px}
.lsteps li::before{content:counter(s);width:30px;height:30px;border-radius:50%;background:var(--spruce);color:var(--spruce-ink);display:flex;align-items:center;justify-content:center;font:700 1rem var(--display)}
.lsteps li.check{counter-increment:none;grid-template-columns:34px minmax(0,1fr);background:var(--soft);border-color:transparent}
.lsteps li.check::before{content:"?";background:var(--blaze);color:var(--blaze-ink)}
.lsteps li>div{display:flex;flex-direction:column;gap:8px;min-width:0}
.lsteps li p{font-size:1.02rem}
.lsteps .text{display:grid;grid-template-columns:minmax(0,1fr);gap:10px}
@media (min-width:900px){.lsteps li.haspic .text{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}}
.lsteps figure{margin:0;display:flex;flex-direction:column;gap:4px;min-width:0}
.lsteps figure img{width:100%;max-height:420px;object-fit:cover;border-radius:8px;display:block;cursor:zoom-in}
.lsteps figcaption{font-size:.88rem;color:var(--muted)}
.term{background:none;border:0;padding:0;margin:0;font:inherit;color:inherit;border-bottom:2px dotted var(--blaze);cursor:help;text-align:left}
.tipbox{position:fixed;z-index:20;max-width:min(360px,calc(100vw - 32px));background:var(--ink);color:#1b1f19;border-radius:8px;padding:10px 12px;font-size:.9rem;line-height:1.4;box-shadow:0 6px 20px rgba(0,0,0,.3)}
.tipbox a{color:#7a4a12;display:inline-block;margin-top:6px}
.quiz{display:flex;flex-direction:column;gap:8px}
.quiz .btn.right{background:var(--okbg);border-color:var(--spruce)}
.quiz .btn.wrong{background:var(--warnbg);border-color:var(--warn)}
.lessonwrap{display:flex;flex-direction:column;gap:16px}
.nextcard{background:var(--blaze);color:var(--blaze-ink);border-radius:12px;padding:14px 16px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center}
.nextcard b{font-family:var(--display);font-size:1.3rem;display:block}
.nextcard span{font-size:.9rem;opacity:.92}
.nextcard .btn{background:rgba(255,255,255,.18);border-color:transparent;color:inherit;min-height:40px}
.earned{background:var(--okbg);border:1px solid var(--spruce);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:4px}
.earned b{font-family:var(--display);font-size:1.4rem}
.termpage p{max-width:72ch;font-size:1.05rem}

/* photo read */
.result{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:16px;align-items:start}
@media (max-width:900px){.result{grid-template-columns:1fr}}
.shot{position:relative;border-radius:10px;overflow:hidden;line-height:0;background:var(--soft)}
.shot img{width:100%;height:auto;display:block}
.pin{position:absolute;transform:translate(-50%,-50%);width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font:700 1.05rem var(--display);line-height:1;border:3px solid #fff;box-shadow:0 2px 6px rgba(0,0,0,.45);color:#fff;cursor:pointer;padding:0}
.t-build{background:#d9561c}.t-water{background:#1f6fa8}.t-fuel{background:#8a4b12}.t-trap{background:#6b4fa0}.t-way{background:#23503b}.t-danger{background:#a3352b}
.items{display:grid;grid-template-columns:1fr;gap:8px}
.item{display:grid;grid-template-columns:30px minmax(0,1fr);gap:10px;align-items:start;background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:10px}
.item .pin{position:static;transform:none;width:30px;height:30px;border-width:2px;font-size:.95rem;box-shadow:none;cursor:default}
.item b{display:block;font-family:var(--display);font-size:1.12rem;font-weight:600}
.item p{font-size:.94rem}
.item .check{color:var(--muted)}
.item.flash{border-color:var(--blaze)}
.plan ol{margin:0;padding-left:1.3em;display:flex;flex-direction:column;gap:6px}
.match{display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:10px}
.match img,.match .noimg{width:96px;height:96px;object-fit:cover;border-radius:8px;background:var(--soft);cursor:zoom-in}
.match b{font-family:var(--display);font-size:1.2rem}
.sure{font:500 .72rem var(--mono);text-transform:uppercase;padding:2px 8px;border-radius:99px;background:var(--soft);color:var(--spruce);width:max-content}
.notlocal{font-size:.85rem;color:var(--warn)}

/* area */
.tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
@media (max-width:760px){.tiles{grid-template-columns:repeat(2,minmax(0,1fr))}}
.tile{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:flex;flex-direction:column;gap:2px;min-width:0}
.tile b{font:700 1.4rem var(--display)}
.tile span{font-size:.85rem;color:var(--muted)}
.species{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
@media (max-width:420px){.species{grid-template-columns:repeat(2,minmax(0,1fr))}}
.sp{background:var(--paper);border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;min-width:0;color:var(--ink);font-weight:400}
.sp img,.sp .noimg{width:100%;aspect-ratio:1/1;object-fit:cover;display:block;background:var(--soft)}
.sp div{padding:8px 10px;display:flex;flex-direction:column;gap:2px}
.sp b{font-weight:700;line-height:1.2}
.sp i{font-size:.82rem;color:var(--muted);font-style:normal}
.sp .warn{font-size:.82rem;color:var(--warn);font-weight:600}
.photoset{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
@media (min-width:900px){.photoset{grid-template-columns:repeat(6,minmax(0,1fr))}}
.photoset img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:8px;cursor:zoom-in;display:block}
.hero{max-width:100%;max-height:480px;width:auto;border-radius:12px;display:block;cursor:zoom-in;background:var(--soft)}
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:var(--paper)}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}
th{font:600 .74rem var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
tr:last-child td{border-bottom:0}

/* saved and offline */
.saved{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px}
.sv{display:grid;grid-template-columns:80px minmax(0,1fr);gap:10px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:8px;color:var(--ink);font-weight:400}
.sv img{width:80px;height:64px;object-fit:cover;border-radius:6px}
.sv span{font-size:.85rem;color:var(--muted)}
.tiers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
@media (max-width:760px){.tiers{grid-template-columns:1fr}}
.tier{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:6px;min-width:0}
.tier b{font-family:var(--display);font-size:1.2rem}
.tier .st{font:500 .78rem var(--mono);color:var(--muted);margin-top:auto}

/* dialogs */
.dlg{display:flex;flex-direction:column;gap:12px;min-width:min(360px,80vw)}
dialog{border:1px solid var(--line);border-radius:12px;background:var(--paper);color:var(--ink);padding:18px}
dialog::backdrop{background:rgba(0,0,0,.6)}
#lightbox{padding:0;background:#000;border:0;max-width:100vw;max-height:100vh;width:100vw;height:100dvh;display:none;flex-direction:column;align-items:center;justify-content:center}
#lightbox[open]{display:flex}
#lightbox img{max-width:100vw;max-height:calc(100dvh - 60px);object-fit:contain}
#lightbox p{color:#fff;font-size:.9rem;padding:8px 16px;margin:0;text-align:center}
.lbclose{position:absolute;top:max(8px,env(safe-area-inset-top));right:max(8px,env(safe-area-inset-right));width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.2);color:#fff;border:0;font-size:1.6rem;cursor:pointer}
input[type=text],input:not([type]),input[inputmode]{font:600 1.2rem var(--mono);padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);width:100%;min-width:0}

/* library */
.passage{gap:6px}
.passage p{font-size:1.02rem}
input[type=search]{font:1rem var(--body);padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink);width:100%;max-width:480px}
.lcard.warn{border-color:var(--warn)}
.lcard i{font-size:.85rem}
.usecat{min-height:0}
.usecat span{line-height:1.5}
.card .src{display:block}