/* PlantCalcKit website — one stylesheet for every page */
:root{
  --navy:#12324A; --navy-2:#1d4a6b; --orange:#E8772E; --orange-text:#C85E1B; --grey:#4F5D6B;
  --steel:#DCE4EC; --pale:#F4F7FA; --teal:#2A7F8F; --water:#3D8FC6; --ok:#2E7D32; --warn:#B26A00; --bad:#C0392B;
  --ink:#1d2a36; --muted:#5b6975; --line:#dfe6ee; --bg:#ffffff; --card:#ffffff;
  --radius:10px; --shadow:0 1px 2px rgba(18,50,74,.06),0 6px 18px rgba(18,50,74,.06);
  --font:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Consolas,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--font)}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--orange-text);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--navy);line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(1.9rem,4.2vw,2.9rem);letter-spacing:-.01em}
h2{font-size:clamp(1.45rem,2.8vw,1.95rem);margin-top:1.6em}
h3{font-size:1.18rem;margin-top:1.3em}
p{margin:0 0 1em}
ul,ol{padding-left:1.25em;margin:0 0 1em}
li{margin:.25em 0}
small,.small{font-size:.875rem;color:var(--muted)}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
.narrow{max-width:780px}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:99}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(6px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.brand img{height:38px;width:auto}
.nav{display:flex;align-items:center;gap:4px}
.nav a{color:var(--navy);font-weight:500;padding:8px 12px;border-radius:8px}
.nav a:hover,.nav a[aria-current="page"]{background:var(--pale);text-decoration:none}
.nav a.btn{color:#fff;margin-left:6px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 10px;color:var(--navy);font:inherit;font-weight:600}
@media (max-width:820px){
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:66px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:8px 20px 16px}
  .nav.open{display:flex}
  .nav a.btn{margin:8px 0 0;text-align:center}
}

/* buttons */
.btn{display:inline-block;background:var(--orange);color:#fff;font-weight:600;padding:12px 20px;border-radius:9px;border:0;cursor:pointer;font:600 1rem var(--font);text-align:center}
.btn:hover{background:#d4661f;text-decoration:none;color:#fff}
.btn.navy{background:var(--navy)}
.btn.navy:hover{background:var(--navy-2)}
.btn.ghost{background:transparent;color:var(--navy);border:1.5px solid var(--navy)}
.btn.ghost:hover{background:var(--pale);color:var(--navy)}
.btn.small{padding:8px 14px;font-size:.92rem}
.btn[aria-disabled="true"]{background:#9aa7b3;cursor:default}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0}

/* hero */
.hero{background:linear-gradient(160deg,var(--navy) 0%,#1d4a6b 100%);color:#fff;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;background:var(--orange);opacity:.9}
@media (max-width:700px){.hero::after{width:150px;height:150px;right:-70px;top:-70px}}
.hero .wrap{position:relative;z-index:1;padding-top:64px;padding-bottom:64px}
.hero h1{color:#fff;max-width:760px}
.hero p.lead{font-size:1.18rem;color:#dbe6f0;max-width:680px}
.hero .eyebrow{color:#F6B98A}
.hero .btn.ghost{color:#fff;border-color:#fff}
.hero .btn.ghost:hover{background:rgba(255,255,255,.1)}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:700;color:var(--orange-text);margin-bottom:.6em}
.page-head{background:var(--pale);border-bottom:1px solid var(--line)}
.page-head .wrap{padding-top:40px;padding-bottom:32px}
.page-head p.lead{font-size:1.1rem;color:var(--grey);max-width:760px;margin-bottom:0}
.crumbs{font-size:.88rem;color:var(--muted);margin-bottom:10px}
.crumbs a{color:var(--muted)}

/* sections and grids */
section.block{padding:56px 0}
section.block.alt{background:var(--pale);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:960px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.card h3{margin-top:0}
.card p{color:var(--grey)}
.card .more{margin-top:auto;font-weight:600}
.card .tag{align-self:flex-start;font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:3px 9px;border-radius:20px;margin-bottom:10px}
.tag.free{background:#E7F4EA;color:var(--ok)}
.tag.excel{background:#FFF1E6;color:var(--orange-text)}
.tag.book{background:#E9F2FA;color:#1f5f8f}
.tag.kit{background:var(--navy);color:#fff}
.price{font-size:1.5rem;font-weight:700;color:var(--navy)}
.price s{font-size:1rem;color:var(--muted);font-weight:400;margin-left:6px}
.icon-dot{width:44px;height:44px;border-radius:12px;background:var(--pale);display:grid;place-items:center;margin-bottom:12px;color:var(--navy)}
.icon-dot svg{width:24px;height:24px}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
@media (max-width:860px){.split{grid-template-columns:1fr}}
.checks{list-style:none;padding:0}
.checks li{padding-left:28px;position:relative}
.checks li::before{content:"";position:absolute;left:2px;top:.45em;width:14px;height:8px;border-left:2.5px solid var(--orange);border-bottom:2.5px solid var(--orange);transform:rotate(-45deg)}
.steps3{counter-reset:s;list-style:none;padding:0}
.steps3 li{counter-increment:s;padding-left:46px;position:relative;margin-bottom:16px}
.steps3 li::before{content:counter(s);position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:700}
.cover-img{border-radius:6px;box-shadow:0 10px 30px rgba(18,50,74,.25);max-width:340px;margin:0 auto}
.figure{border:1px solid var(--line);border-radius:var(--radius);padding:14px;background:#fff;margin:20px 0}
.figure figcaption{font-size:.86rem;color:var(--muted);margin-top:8px}
.note{background:var(--pale);border-left:4px solid var(--teal);padding:14px 16px;border-radius:0 8px 8px 0;margin:18px 0;color:var(--grey)}
.warn{background:#FDF0EC;border-left:4px solid var(--bad);padding:14px 16px;border-radius:0 8px 8px 0;margin:18px 0}
.trust{display:flex;flex-wrap:wrap;gap:10px 26px;color:#c9d6e2;font-size:.95rem;margin-top:22px}
.trust span::before{content:"✓ ";color:var(--orange)}

/* tables */
table.t{border-collapse:collapse;width:100%;margin:12px 0 18px;font-size:.95rem}
table.t th{background:var(--navy);color:#fff;text-align:left;padding:9px 12px;font-weight:600}
table.t td{padding:8px 12px;border-bottom:1px solid var(--line);vertical-align:top}
table.t tr:nth-child(even) td{background:#F8FAFC}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* calculators */
.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}
@media (max-width:900px){.calc{grid-template-columns:1fr}}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.panel h2,.panel h3{margin:0;font-size:1.05rem;padding:14px 18px;background:var(--pale);border-bottom:1px solid var(--line)}
.panel .body{padding:16px 18px}
.units-switch{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-bottom:12px;font-size:.92rem;color:var(--grey)}
.units-switch button{border:1.5px solid var(--navy);background:#fff;color:var(--navy);border-radius:20px;padding:5px 14px;font:600 .88rem var(--font);cursor:pointer}
.units-switch button[aria-pressed="true"]{background:var(--navy);color:#fff}
.field{display:grid;grid-template-columns:minmax(0,1fr) 150px;gap:6px 12px;align-items:center;padding:7px 0;border-bottom:1px dashed #e8edf2}
.field:last-child{border-bottom:0}
.field label{font-size:.95rem;color:var(--ink)}
.field label small{display:block;color:var(--muted);font-size:.8rem}
.field .in{display:flex;align-items:center;border:1.5px solid #c9d4df;border-radius:8px;background:#fff;overflow:hidden}
.field .in:focus-within{border-color:var(--orange);box-shadow:0 0 0 3px rgba(232,119,46,.18)}
.field input,.field select{border:0;outline:0;font:500 1rem var(--font);color:var(--navy);padding:8px 10px;width:100%;min-width:0;background:transparent}
.field select{padding-right:4px}
.field .u{font-size:.82rem;color:var(--muted);padding:0 10px 0 2px;white-space:nowrap}
.field.wide{grid-template-columns:1fr}
.field.sel{grid-template-columns:minmax(0,1fr) 250px}
@media (max-width:520px){.field.sel{grid-template-columns:1fr}.field{grid-template-columns:minmax(0,1fr) 140px}}
.group-title{font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--orange-text);margin:14px 0 2px}
.group-title:first-child{margin-top:0}
.results .row{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid #eef2f6}
.results .row:last-child{border-bottom:0}
.results .row span:first-child{color:var(--grey)}
.results .row b{color:var(--navy);font-weight:600;text-align:right;white-space:nowrap}
.results .big{background:var(--navy);color:#fff;border-radius:9px;padding:16px 18px;margin-bottom:12px}
.results .big .lbl{font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;color:#bcd0e2}
.results .big .val{font-size:2rem;font-weight:700;line-height:1.2}
.results .big .sub{color:#dbe6f0;font-size:.92rem}
.msg{border-radius:8px;padding:10px 12px;font-size:.92rem;margin:10px 0}
.msg.ok{background:#E7F4EA;color:#1f5e23}
.msg.warn{background:#FFF4E0;color:#7a4a00}
.msg.bad{background:#FDECEA;color:#9b2c20}
.calc-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.calc-actions button{font:600 .9rem var(--font);border:1.5px solid var(--line);background:#fff;color:var(--navy);border-radius:8px;padding:7px 12px;cursor:pointer}
.calc-actions button:hover{border-color:var(--navy)}
.upsell{background:linear-gradient(160deg,#FFF6EE,#fff);border:1px solid #F3C29C;border-radius:var(--radius);padding:20px;margin-top:22px}
.upsell h3{margin-top:0}

/* forms */
.signup{display:flex;gap:10px;flex-wrap:wrap}
.signup input{flex:1 1 220px;border:1.5px solid #c9d4df;border-radius:9px;padding:12px 14px;font:1rem var(--font)}

/* footer */
.site-footer{background:var(--navy);color:#c9d6e2;margin-top:0}
.site-footer .wrap{padding-top:44px;padding-bottom:28px}
.site-footer a{color:#e3eaf1}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:.8em}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:.35em 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
@media (max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}}
.foot-logo{height:36px;width:auto;margin-bottom:12px}
.legal{border-top:1px solid rgba(255,255,255,.14);margin-top:28px;padding-top:18px;font-size:.85rem;color:#a9bccd}

/* prose pages */
.prose{padding:40px 0 60px}
.prose h2{font-size:1.35rem}
.faq details{border:1px solid var(--line);border-radius:9px;padding:12px 16px;margin:10px 0;background:#fff}
.faq summary{font-weight:600;color:var(--navy);cursor:pointer}
.faq details p{margin:.7em 0 0;color:var(--grey)}
@media print{.site-header,.site-footer,.upsell,.calc-actions,.units-switch{display:none}}