:root{
  --ink:#12211A; --bg:#FAFAF7; --surface:#FFFFFF;
  --primary:#1B5E3F; --primary-dark:#123D29; --accent:#E0A422;
  --plant:#1B7A4B; --plant-bg:#E8F2EC; --avoid:#C0492E; --avoid-bg:#F7EAE6;
  --muted:#657A6E; --line:#E7E9E3;
  --display:"Sora","Noto Sans Sinhala","Noto Sans Tamil",system-ui,sans-serif;
  --body:"Plus Jakarta Sans","Noto Sans Sinhala","Noto Sans Tamil",system-ui,sans-serif;
  --r:14px; --shadow:0 1px 2px rgba(18,33,26,.04),0 8px 24px rgba(18,33,26,.05);
  --header-bg:rgba(250,250,247,.9);
}
:root[data-theme="dark"]{
  --ink:#E8EDE9; --bg:#0E1512; --surface:#17201B;
  --primary:#4CAF7D; --primary-dark:#8FD9B0; --accent:#E8B84B;
  --plant:#6BCB94; --plant-bg:#183327; --avoid:#E27B63; --avoid-bg:#3A2019;
  --muted:#9AA89F; --line:#2A352E;
  --header-bg:rgba(14,21,18,.9);
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.4);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--body);background:var(--bg);color:var(--ink);line-height:1.5;
  font-size:16px;-webkit-font-smoothing:antialiased}
:lang(si),:lang(ta){line-height:1.7}

/* ---- header ---- */
header{position:sticky;top:0;z-index:20;background:var(--header-bg);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{max-width:1080px;margin:0 auto;padding:14px 20px;display:flex;
  align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.mark{width:38px;height:38px;flex:none;border-radius:9px;
  display:grid;place-items:center;overflow:hidden}
.mark img{width:38px;height:38px;object-fit:contain}
.mark svg{width:20px;height:20px}
.brand b{font-family:var(--display);font-weight:700;font-size:19px;letter-spacing:-.02em;color:var(--primary-dark)}
.brand small{display:block;font-size:11.5px;color:var(--muted);font-weight:500;margin-top:-2px}
.langs{display:flex;gap:4px;background:var(--plant-bg);padding:4px;border-radius:11px;flex:none}
.langs button{font-family:var(--body);border:0;background:transparent;color:var(--muted);
  font-weight:600;font-size:13px;padding:6px 11px;border-radius:8px;cursor:pointer;transition:.15s}
.langs button.on{background:var(--surface);color:var(--primary-dark);box-shadow:var(--shadow)}
#themeToggle{font-family:var(--body);border:0;background:var(--surface);border:1px solid var(--line);
  border-radius:11px;width:40px;height:38px;font-size:18px;cursor:pointer;flex:none;line-height:1;
  display:grid;place-items:center;box-shadow:var(--shadow)}
#themeToggle:hover{border-color:var(--primary)}

/* ---- nav ---- */
nav{max-width:1080px;margin:0 auto;padding:0 20px;display:flex;gap:6px;overflow-x:auto;scrollbar-width:none}
nav::-webkit-scrollbar{display:none}
.tab{font-family:var(--body);white-space:nowrap;border:0;background:transparent;color:var(--muted);
  font-weight:600;font-size:15px;padding:16px 6px;margin-right:18px;cursor:pointer;
  border-bottom:2.5px solid transparent;transition:.15s}
.tab.on{color:var(--primary-dark);border-bottom-color:var(--accent)}

/* ---- layout ---- */
main{max-width:1080px;margin:0 auto;padding:28px 20px 80px}
.panel{display:none;animation:rise .4s ease}
.panel.on{display:block}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.lead{font-family:var(--display);font-weight:600;font-size:clamp(22px,4.5vw,30px);
  letter-spacing:-.02em;color:var(--primary-dark);max-width:20ch;line-height:1.2}
.sub{color:var(--muted);margin-top:8px;max-width:52ch;font-size:15px}

/* ---- glut cards ---- */
.grid{display:grid;gap:14px;margin-top:26px;
  grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px}
.card .top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.card .crop{font-family:var(--display);font-weight:600;font-size:17px;color:var(--ink)}
.pill{font-size:12px;font-weight:700;letter-spacing:.02em;padding:5px 11px;border-radius:999px;
  text-transform:uppercase;flex:none}
.pill.plant{background:var(--plant-bg);color:var(--plant)}
.pill.avoid{background:var(--avoid-bg);color:var(--avoid)}
.card .why{font-size:13.5px;color:var(--muted);line-height:1.55}
.card .price{font-family:var(--display);font-weight:600;font-size:15px;color:var(--primary-dark)}

.planrow{display:flex;gap:10px;margin-bottom:10px}
.pf{flex:1;display:flex;flex-direction:column;gap:6px}
.pf label{font-size:12px;font-weight:600;color:var(--muted)}
.pf select{font-family:var(--body);font-size:14px;padding:10px;border:1.5px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);width:100%}
#planGrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.pblock{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px;cursor:pointer;box-shadow:var(--shadow);transition:transform .15s,border-color .15s;user-select:none;-webkit-user-select:none}
.pblock:hover{border-color:var(--primary);transform:translateY(-2px)}
.pblock .ph{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.pblock .pn{font-family:var(--display);font-weight:600;font-size:16px}
.pnums{display:flex;gap:20px;margin-bottom:8px}
.pnums b{display:block;font-family:var(--display);font-weight:600;font-size:16px;color:var(--primary-dark)}
.pnums span{font-size:11px;color:var(--muted)}
.psig{font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;text-transform:uppercase}
.mini{position:relative;width:100%;aspect-ratio:4/3;margin:0 auto 8px}
.pline{font-size:12px;color:var(--muted);display:flex;justify-content:flex-end;align-items:center;gap:8px}
.tapfor{color:var(--primary);white-space:nowrap}
/* modal */
.backdrop{position:fixed;inset:0;background:rgba(18,33,26,.35);backdrop-filter:blur(5px);
  z-index:50;display:flex;align-items:center;justify-content:center;padding:20px;
  opacity:0;animation:fadein .2s forwards}
@keyframes fadein{to{opacity:1}}
.modal{background:var(--surface);border-radius:18px;max-width:520px;width:100%;max-height:88vh;
  overflow-y:auto;padding:22px;box-shadow:0 20px 60px rgba(0,0,0,.25);
  transform:scale(.85);opacity:0;animation:pop .25s cubic-bezier(.2,.9,.3,1.2) forwards}
@keyframes pop{to{transform:scale(1);opacity:1}}
.backbtn{font-family:var(--body);border:0;background:transparent;color:var(--primary);font-weight:600;font-size:14px;cursor:pointer;padding:0 0 12px}
.opinion{border-radius:12px;padding:14px;margin:12px 0;font-size:14px;line-height:1.55}
.opinion .why{margin-top:8px;font-size:13px;opacity:.9}
.loading{color:var(--muted);padding:40px 0;text-align:center}
.soon{margin-top:24px;padding:40px;border:1.5px dashed var(--line);border-radius:var(--r);
  text-align:center;color:var(--muted)}

/* ---- forms (fair price) ---- */
.form{margin-top:24px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r);box-shadow:var(--shadow);padding:20px;display:grid;gap:16px;
  grid-template-columns:1fr 1fr;max-width:640px}
.field{display:flex;flex-direction:column;gap:7px}
.field:nth-child(3){grid-column:1/-1}
.form label{font-size:13px;font-weight:600;color:var(--muted)}
.form select,.form input{font-family:var(--body);font-size:15px;color:var(--ink);
  padding:12px 13px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);width:100%}
.form select:focus,.form input:focus{border-color:var(--primary);outline:none}
.go{grid-column:1/-1;font-family:var(--display);font-weight:600;font-size:15px;color:#fff;
  background:var(--primary);border:0;border-radius:11px;padding:14px;cursor:pointer;transition:.15s}
.go:hover{background:var(--primary-dark)}

/* ---- verdict ---- */
.verdict{margin-top:20px;max-width:640px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden;animation:rise .35s ease}
.verdict .band{padding:16px 20px;color:#fff;font-family:var(--display);font-weight:600;font-size:18px}
.verdict.fair .band{background:var(--plant)} .verdict.low .band{background:var(--accent)}
.verdict.bad .band{background:var(--avoid)}
.verdict .body{padding:18px 20px}
.verdict .nums{display:flex;gap:26px;flex-wrap:wrap;margin-bottom:12px}
.verdict .n b{display:block;font-family:var(--display);font-size:22px;color:var(--primary-dark)}
.verdict .n span{font-size:12px;color:var(--muted)}
.verdict .why{font-size:14px;color:var(--ink)}
.verdict .meta{font-size:12px;color:var(--muted);margin-top:10px}

/* ---- chat (agent) ---- */
.chat{margin-top:22px;display:flex;flex-direction:column;gap:12px;min-height:120px}
.msg{max-width:88%;padding:13px 16px;border-radius:15px;font-size:14.5px;line-height:1.55}
.msg.you{align-self:flex-end;background:var(--primary);color:#fff;border-bottom-right-radius:5px}
.msg.bot{align-self:flex-start;background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--shadow);border-bottom-left-radius:5px;white-space:pre-wrap}
.msg.bot b{color:var(--primary-dark)}
.ask-row{margin-top:16px;display:flex;gap:10px;max-width:640px}
.ask-row input{flex:1;font-family:var(--body);font-size:15px;padding:13px 15px;
  border:1.5px solid var(--line);border-radius:12px;background:var(--surface)}
.ask-row input:focus{border-color:var(--primary);outline:none}
.ask-row .go{grid-column:auto;padding:13px 22px}
.chips{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}
.chips button{font-family:var(--body);font-size:13px;color:var(--primary-dark);background:var(--plant-bg);
  border:0;padding:8px 13px;border-radius:999px;cursor:pointer}
.dots{display:inline-flex;gap:4px}.dots i{width:6px;height:6px;border-radius:50%;background:var(--muted);
  animation:blink 1.2s infinite}.dots i:nth-child(2){animation-delay:.2s}.dots i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.25}30%{opacity:1}}

.foot{max-width:1080px;margin:0 auto;padding:24px 20px;color:var(--muted);font-size:12.5px;border-top:1px solid var(--line)}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px;border-radius:4px}
@media (max-width:560px){ .bar{padding:12px 16px} main{padding:22px 16px 70px} .brand small{display:none}
  .form{grid-template-columns:1fr} .field:nth-child(3){grid-column:auto} }

/* --- Soil module --- */
.soilform{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));max-width:none}
.mode-toggle{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:4px 0 0;
  color:var(--muted);font-size:14px}
.mode-toggle .mode{font-family:var(--body);border:1px solid var(--line);background:var(--surface);
  color:var(--muted);border-radius:10px;padding:7px 14px;cursor:pointer;font-weight:600}
.mode-toggle .mode.on{background:var(--primary);color:#fff;border-color:var(--primary)}
.soil-actions{display:flex;gap:10px;align-items:center;margin:4px 0 20px;flex-wrap:wrap}
.ghost{font-family:var(--body);background:transparent;border:1px solid var(--line);
  color:var(--muted);border-radius:12px;padding:12px 20px;cursor:pointer;font-weight:600}
.ghost:hover{border-color:var(--avoid);color:var(--avoid)}
.guide{margin:0 0 18px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--surface);overflow:hidden}
.guide summary{padding:12px 16px;cursor:pointer;font-weight:600;color:var(--primary-dark);
  font-family:var(--head)}
.guide[open] summary{border-bottom:1px solid var(--line)}
.guide-body{padding:14px 16px;color:var(--muted);font-size:14px;line-height:1.6}
.guide-body p{margin:0 0 10px}
.zigzag{width:100%;max-width:280px;display:block;margin:10px 0}
.soil-go{margin:0}
.soilcard{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);
  padding:14px 16px;margin-bottom:10px;box-shadow:var(--shadow)}
.soilcard .top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.soilcard .cname{font-family:var(--head);font-weight:700;font-size:16px}
.soilcard .pct{font-family:var(--head);font-weight:700;font-size:20px}
.bar-wrap{height:8px;background:var(--line);border-radius:6px;margin:8px 0;overflow:hidden}
.bar-fill{height:100%;border-radius:6px;transition:width .4s}
.soilcard .why{font-size:13px;color:var(--muted);margin-top:6px}
.soilcard .meta{font-size:12px;color:var(--muted);margin-top:6px;display:flex;gap:12px;flex-wrap:wrap}
.completeness-note{background:var(--plant-bg);border-radius:10px;padding:10px 14px;
  font-size:13px;color:var(--ink);margin-bottom:14px}

/* --- Auth: header box, login/signup modal, soil premium gate --- */
.authbox{display:flex;align-items:center;gap:8px;flex:none}
.authbtn{font-family:var(--body);font-weight:600;font-size:13px;border:0;background:var(--primary);
  color:#fff;padding:8px 14px;border-radius:10px;cursor:pointer;transition:.15s}
.authbtn:hover{background:var(--primary-dark)}
.authbox .ghostbtn{background:transparent;border:1px solid var(--line);color:var(--muted)}
.authbox .ghostbtn:hover{border-color:var(--avoid);color:var(--avoid)}
.authmail{font-size:13px;color:var(--muted);max-width:170px;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap}

.authmodal{position:relative;max-width:400px}
.authtitle{font-family:var(--display);font-weight:600;font-size:20px;
  color:var(--primary-dark);margin:0 0 18px}
.authmodal .backbtn{position:absolute;top:14px;right:16px;padding:0;font-size:17px;color:var(--muted)}
.authmodal .field{margin-bottom:14px}
.authmodal .field label{font-size:13px;font-weight:600;color:var(--muted);display:block;margin-bottom:6px}
.authmodal .field input{font-family:var(--body);font-size:15px;color:var(--ink);
  padding:12px 13px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg);width:100%}
.authmodal .field input:focus{border-color:var(--primary);outline:none}
.autherr{color:var(--avoid);font-size:13px;min-height:18px;margin-bottom:4px}
.authok{color:var(--plant);font-size:13px;min-height:18px;margin-bottom:4px}
.authsub{color:var(--muted);font-size:14px;margin:-8px 0 16px;line-height:1.5}
.authforgot{margin-top:12px;text-align:center;font-size:13px}
.authforgot a{color:var(--primary);cursor:pointer;font-weight:600}
.oauth-sep{display:flex;align-items:center;text-align:center;color:var(--muted);
  font-size:12px;margin:16px 0 12px}
.oauth-sep::before,.oauth-sep::after{content:"";flex:1;height:1px;background:var(--line)}
.oauth-sep span{padding:0 12px}
.oauthbtn{width:100%;display:flex;align-items:center;justify-content:center;gap:12px;
  font-family:var(--body);font-weight:600;font-size:14px;color:var(--ink);
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
  height:44px;padding:0 12px;cursor:pointer;margin-bottom:10px;transition:.15s}
.oauthbtn:hover{background:var(--bg);border-color:var(--muted)}
.oauthbtn span{line-height:1}
/* Google requires the full-colour G to sit on white — give it a white chip so it
   stays compliant even in dark mode. Facebook's mark carries its own blue. */
.oauthbtn .oauth-logo{flex:none;display:block;background:#fff;border-radius:4px;padding:2px;
  box-sizing:content-box}
.authsubmit{width:100%;margin-top:4px}
.authalt{margin-top:14px;text-align:center;font-size:13px;color:var(--muted)}
.authalt a{color:var(--primary);cursor:pointer;font-weight:600}

/* soil gate: blur everything in the panel except the overlay card */
#soil{position:relative}
#soil.gated > *:not(.soil-gate){filter:blur(4px);pointer-events:none;user-select:none}
.soil-gate{position:absolute;inset:0;display:flex;align-items:flex-start;justify-content:center;
  padding-top:70px;z-index:5}
.gate-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:0 20px 60px rgba(0,0,0,.18);padding:26px 24px;max-width:360px;text-align:center}
.gate-title{font-family:var(--display);font-weight:600;font-size:18px;
  color:var(--primary-dark);margin-bottom:8px}
.gate-sub{color:var(--muted);font-size:14px;line-height:1.5;margin-bottom:18px}
.gate-actions{display:flex;gap:10px;justify-content:center}
.gate-actions .go{grid-column:auto;padding:12px 22px}
.gate-actions .ghost{padding:12px 22px}

/* show/hide password button inside a field */
.pwd-wrap{position:relative;display:flex;align-items:center}
.pwd-wrap input{padding-right:64px}
.pwd-eye{position:absolute;right:6px;border:0;background:transparent;color:var(--muted);
  font-family:var(--body);font-size:12px;font-weight:600;cursor:pointer;padding:8px 10px}
.pwd-eye:hover{color:var(--primary)}

/* mobile header: compact the controls so the Agricz brand isn't clipped */
@media (max-width:560px){
  .bar{gap:8px}
  .brand{min-width:auto}
  .brand b{font-size:17px}
  .langs{padding:3px;gap:2px}
  .langs button{padding:5px 8px;font-size:12px}
  #themeToggle{width:34px;height:34px;font-size:16px}
  .authbtn{padding:7px 11px;font-size:12px}
  .authmail{display:none}
}