:root{--forest:#214d36;--forest-dark:#153524;--leaf:#638f63;--sage:#eaf2e8;--cream:#f7f3e9;--gold:#d6ad51;--ink:#24312a;--muted:#647168;--line:#d7dfd7;--white:#fff;--warning:#fff4d2;--shadow:0 18px 55px rgba(22,58,38,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.55;-webkit-text-size-adjust:100%}a{color:inherit}.container{width:min(1160px,calc(100% - 32px));margin:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:16px;z-index:1000;background:#fff;padding:10px 14px;border-radius:8px}.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none}.brand-tree{font-size:31px}.brand strong,.brand small{display:block}.brand strong{color:var(--forest);letter-spacing:.04em}.brand small{font-size:10px;letter-spacing:.14em;color:var(--muted)}nav{display:flex;gap:26px}nav a{text-decoration:none;font-weight:700;font-size:14px}.mobile-home{display:none;text-decoration:none;font-weight:800;color:var(--forest)}
.hero{background:linear-gradient(135deg,var(--forest-dark),var(--forest));color:#fff;padding:58px 0 72px}.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:48px;align-items:center}.breadcrumb{display:flex;gap:8px;font-size:13px;color:#d9e9dd;margin-bottom:22px}.breadcrumb a{text-decoration:none}.kicker{font-size:12px;font-weight:950;letter-spacing:.14em;margin:0 0 10px}.kicker.green{color:var(--leaf)}h1,h2,h3{font-family:Georgia,serif;line-height:1.12}h1{font-size:clamp(2.7rem,6vw,5rem);margin:0 0 20px}.hero-copy{max-width:760px;font-size:1.08rem;color:#e5efe8}.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0}.hero-meta span{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);padding:8px 11px;border-radius:999px;font-size:13px}.hero-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:22px;padding:28px}.hero-card h2{color:#fff;margin:8px 0;font-size:1.8rem}.hero-card p{color:#eaf2ec}.water-icon{font-size:44px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:13px 20px;border-radius:12px;border:0;text-decoration:none;font-weight:850;font-size:15px;cursor:pointer}.button-light{background:#fff;color:var(--forest-dark)}.button-primary{background:var(--forest);color:#fff}.button-secondary{background:var(--sage);color:var(--forest-dark)}.button-outline{background:#fff;color:var(--forest);border:1px solid var(--forest)}.full{width:100%}
.intro-strip{background:var(--cream);border-bottom:1px solid #e4ded0}.intro-grid{display:grid;grid-template-columns:repeat(3,1fr)}.intro-grid>div{padding:20px 24px;border-right:1px solid #ddd5c5}.intro-grid>div:last-child{border-right:0}.intro-grid strong,.intro-grid span{display:block}.intro-grid strong{color:var(--forest)}.intro-grid span{font-size:14px;color:var(--muted)}
.tool-section{padding:74px 0;background:linear-gradient(180deg,#fff,#f6f8f4)}.section-heading{margin-bottom:28px}.section-heading.centered{text-align:center}.section-heading h2{font-size:2.65rem;color:var(--forest-dark);margin:0 0 10px}.section-heading p:last-child{color:var(--muted);max-width:760px}.section-heading.centered p:last-child{margin-inline:auto}.app-shell{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(350px,.92fr);border:1px solid var(--line);border-radius:25px;background:#fff;box-shadow:var(--shadow);overflow:hidden}.form-panel,.result-panel{padding:34px}.result-panel{background:var(--cream);border-left:1px solid var(--line)}.form-step+.form-step{margin-top:30px;padding-top:26px;border-top:1px solid var(--line)}.step-label{font-size:11px;font-weight:950;letter-spacing:.14em;color:var(--leaf);margin-bottom:18px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field,.choice-group{margin:0 0 20px}.field label,.choice-group legend{display:block;font-weight:800;margin-bottom:8px}.field small,.choice-card small,.check-card small{display:block;color:var(--muted);font-size:12px;margin-top:5px}.number-wrap{display:flex;align-items:center;border:1px solid #bcc8bf;border-radius:13px;background:#fff;overflow:hidden}.number-wrap:focus-within{border-color:var(--leaf);box-shadow:0 0 0 4px rgba(99,143,99,.15)}.number-wrap input{border:0;outline:0;width:100%;padding:14px;font-size:16px;min-width:0}.number-wrap span{padding:0 13px;color:var(--muted);font-size:13px;white-space:nowrap}.choice-group{border:0;padding:0;min-width:0}.choice-grid{display:grid;gap:10px}.four-choice{grid-template-columns:repeat(4,1fr)}.three-choice{grid-template-columns:repeat(3,1fr)}.two-choice{grid-template-columns:repeat(2,minmax(0,180px))}.choice-card{position:relative;display:block}.choice-card input{position:absolute;opacity:0;pointer-events:none}.choice-card span{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100px;padding:12px;text-align:center;border:1px solid var(--line);border-radius:14px;background:#fff;cursor:pointer;transition:.18s ease}.choice-card b{font-size:24px;font-weight:400;line-height:1}.choice-card strong{font-size:14px;margin-top:7px}.choice-card small{font-size:11px}.choice-card input:checked+span{border-color:var(--forest);background:var(--sage);box-shadow:0 0 0 2px rgba(33,77,54,.08)}.choice-card input:focus-visible+span{outline:3px solid rgba(99,143,99,.35);outline-offset:2px}.compact .choice-card span{min-height:90px}.check-card{display:flex;align-items:flex-start;gap:12px;background:var(--sage);padding:15px;border-radius:14px;cursor:pointer}.check-card input{width:20px;height:20px;margin-top:2px;accent-color:var(--forest)}.form-error{background:#ffe5df;color:#7c2c1e;padding:12px;border-radius:10px;margin-bottom:14px}.sticky-calc{margin-top:4px}
.result-empty{text-align:center}.root-zone-graphic{position:relative;min-height:185px;display:grid;place-items:center}.canopy{font-size:84px}.soil-line{position:absolute;bottom:38px;width:84%;height:3px;background:#9c7654}.water-ring{position:absolute;bottom:18px;width:72%;height:40px;border:4px solid #78b9d8;border-radius:50%;opacity:.65}.result-empty h2{font-size:1.8rem;color:var(--forest-dark)}.result-empty p,.result-empty li{color:var(--muted)}.result-empty ul{display:inline-block;text-align:left}.result-amount strong{display:block;font-size:4rem;line-height:1;color:var(--forest-dark);font-family:Georgia,serif}.result-amount span{font-weight:800}.frequency{font-size:1.25rem;font-weight:850;color:var(--forest);margin:12px 0 22px}.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.metric-grid div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}.metric-grid span{font-size:12px;color:var(--muted);display:block}.metric-grid strong{color:var(--forest);font-size:1.2rem}.explanation-box{margin:20px 0;background:var(--sage);border-radius:14px;padding:17px}.explanation-box h3{font-size:1.2rem;margin:0 0 7px}.explanation-box p{margin:0}.instructions{padding-left:22px}.instructions li{margin:9px 0}.alert{background:var(--warning);border-left:5px solid var(--gold);padding:14px;border-radius:10px;margin:20px 0}.result-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.tips-section,.related-section{padding:72px 0}.tips-section{background:#fff}.related-section{background:var(--cream)}.card-grid{display:grid;gap:18px}.card-grid.four{grid-template-columns:repeat(4,1fr)}.card-grid.three{grid-template-columns:repeat(3,1fr)}.tip-card,.related-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.tip-card span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--forest);color:#fff;font-weight:900}.tip-card h3,.related-card h3{font-size:1.35rem;margin:14px 0 7px}.tip-card p,.related-card p{color:var(--muted);margin:0}.card-icon{font-size:42px}.coming{display:inline-block;margin-top:18px;font-size:11px;font-weight:950;letter-spacing:.12em;color:var(--leaf)}.center-button{text-align:center;margin-top:28px}.help-section{background:linear-gradient(120deg,var(--forest),#2b633e);color:#fff;padding:52px 0}.help-grid{display:flex;justify-content:space-between;align-items:center;gap:35px}.help-section h2{color:#fff;font-size:2.4rem;margin:0 0 10px}.help-section p{max-width:760px;color:#e9f1ea}.disclaimer{background:#f1eee4;padding:20px 0;font-size:13px;color:#586158}.site-footer{background:#102c1e;color:#dfe9e1;padding:38px 0}.footer-grid{display:flex;justify-content:space-between;gap:28px}.footer-grid strong{font-family:Georgia,serif}.footer-grid p{margin:5px 0}.footer-grid div:last-child{display:flex;gap:22px}.footer-grid a{text-decoration:none}
@media(max-width:900px){nav{display:none}.mobile-home{display:block}.hero-grid,.app-shell{grid-template-columns:1fr}.hero-card{display:none}.intro-grid{grid-template-columns:1fr}.intro-grid>div{border-right:0;border-bottom:1px solid #ddd5c5}.result-panel{border-left:0;border-top:1px solid var(--line)}.card-grid.four{grid-template-columns:1fr 1fr}.card-grid.three{grid-template-columns:1fr}.help-grid,.footer-grid{align-items:flex-start;flex-direction:column}.four-choice{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.container{width:min(100% - 22px,1160px)}.nav-wrap{height:64px}.brand-tree{font-size:26px}.brand strong{font-size:13px}.brand small{font-size:8px}.mobile-home{font-size:13px}.hero{padding:34px 0 44px}.breadcrumb{font-size:12px;margin-bottom:16px}.hero h1{font-size:2.65rem}.hero-copy{font-size:1rem}.hero-meta{display:grid;grid-template-columns:1fr;gap:8px}.hero-meta span{width:max-content}.intro-grid>div{padding:15px 8px}.tool-section{padding:46px 0}.section-heading h2{font-size:2.05rem}.form-panel,.result-panel{padding:18px}.form-step+.form-step{margin-top:24px;padding-top:22px}.two-col{grid-template-columns:1fr;gap:4px}.choice-grid{gap:8px}.three-choice{grid-template-columns:repeat(3,1fr)}.four-choice{grid-template-columns:repeat(2,1fr)}.two-choice{grid-template-columns:1fr 1fr}.choice-card span{min-height:92px;padding:9px 6px}.choice-card b{font-size:22px}.choice-card strong{font-size:13px}.choice-card small{font-size:10px;line-height:1.25}.compact .choice-card span{min-height:84px}.method-grid .choice-card span{min-height:88px}.number-wrap input{font-size:18px;padding:15px}.check-card{padding:14px}.sticky-calc{position:sticky;bottom:10px;z-index:15;box-shadow:0 12px 30px rgba(21,53,36,.25);min-height:54px;margin-top:18px}.result-amount strong{font-size:3.4rem}.metric-grid,.result-actions,.card-grid.four{grid-template-columns:1fr}.result-panel{scroll-margin-top:75px}.tips-section,.related-section{padding:50px 0}.help-section h2{font-size:2rem}.help-section{padding:42px 0}.footer-grid div:last-child{flex-direction:column;gap:8px}.button{width:100%}.hero .button{width:auto}.rain-group .choice-card span{min-height:70px;flex-direction:row;gap:8px}.rain-group .choice-card strong{margin-top:0}}
@media(max-width:380px){.container{width:min(100% - 16px,1160px)}.form-panel,.result-panel{padding:14px}.choice-card span{padding:8px 4px}.choice-card strong{font-size:12px}.choice-card small{font-size:9px}.hero h1{font-size:2.35rem}}
@media print{.site-header,.hero,.intro-strip,.form-panel,.tips-section,.related-section,.help-section,.disclaimer,.site-footer,.result-actions{display:none!important}.tool-section{padding:0}.app-shell{display:block;border:0;box-shadow:none}.result-panel{border:0;background:#fff}.result-card[hidden]{display:block}}