/* ============ DP Sizer design system ============ */
:root{
  --green:#16A34A; --green-d:#15803D; --green-l:#22C55E; --green-bg:#F0FDF4;
  --ink:#111827; --ink2:#4B5563; --ink3:#6B7280;
  --bg:#F8FAFC; --card:#FFFFFF; --border:#E5E7EB; --dark:#0F172A;
  --r-lg:18px; --r-md:14px; --r-sm:10px;
  --sh-sm:0 1px 2px rgba(15,23,42,.06),0 1px 1px rgba(15,23,42,.04);
  --sh-md:0 8px 24px -12px rgba(15,23,42,.18),0 2px 6px rgba(15,23,42,.06);
  --sh-lg:0 24px 60px -24px rgba(15,23,42,.25);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:92px}
html,body{overflow-x:hidden}
body{
  font-family:system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.6;
  -webkit-font-smoothing:antialiased; font-size:16px;
}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
a{color:var(--green-d);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:3px solid rgba(22,163,74,.55);outline-offset:2px;border-radius:6px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--green-d);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Evidence Labels (Phase 22) */
.badge-official{display:inline-flex;align-items:center;gap:6px;background:#DCFCE7;color:#15803D;font-weight:700;font-size:.78rem;padding:4px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.04em;border:1px solid rgba(21,128,61,.25)}
.badge-recommendation{display:inline-flex;align-items:center;gap:6px;background:#E0F2FE;color:#0369A1;font-weight:700;font-size:.78rem;padding:4px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.04em;border:1px solid rgba(3,105,161,.25)}
.badge-testing{display:inline-flex;align-items:center;gap:6px;background:#F3E8FF;color:#6B21A8;font-weight:700;font-size:.78rem;padding:4px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.04em;border:1px solid rgba(107,33,168,.25)}
.badge-general{display:inline-flex;align-items:center;gap:6px;background:#F1F5F9;color:#475569;font-weight:700;font-size:.78rem;padding:4px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.04em;border:1px solid rgba(71,85,105,.25)}

/* Sources Component (Phase 30) */
.sources-box{background:#F8FAFC;border:1px solid var(--border);border-radius:14px;padding:20px;margin:28px 0}
.sources-box h3{font-size:.98rem;font-weight:700;color:var(--ink);margin-bottom:10px}
.sources-box ul{list-style:none;margin:0;padding:0}
.sources-box li{margin-bottom:6px;font-size:.88rem;color:var(--ink2)}
.sources-box a{color:var(--green-d);font-weight:600}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.22rem;color:var(--ink);text-decoration:none;letter-spacing:-.02em}
.logo-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--green),var(--green-d));display:grid;place-items:center;box-shadow:var(--sh-sm)}
.logo-mark svg{width:20px;height:20px}
.main-nav{display:flex;gap:4px;margin-left:auto}
.main-nav a{color:var(--ink2);text-decoration:none;font-weight:600;font-size:.94rem;padding:8px 13px;border-radius:999px;transition:background .15s,color .15s}
.main-nav a:hover,.main-nav a.active{background:var(--green-bg);color:var(--green-d)}
.header-cta{margin-left:8px}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border-radius:10px;place-items:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:transform .2s}
.nav-toggle span::before{position:absolute;top:-6px}
.nav-toggle span::after{position:absolute;top:6px}
@media(max-width:920px){
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);flex-direction:column;padding:12px 20px 18px;gap:2px;box-shadow:var(--sh-md)}
  .site-header.menu-open .main-nav{display:flex}
  .header-cta{display:none}
  .nav-toggle{display:grid}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;border-radius:12px;transition:background .15s,transform .12s,box-shadow .15s;text-decoration:none}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 2px 8px rgba(22,163,74,.35)}
.btn-primary:hover{background:var(--green-d);text-decoration:none}
.btn-primary:active{transform:scale(.98)}
.btn-secondary{background:#fff;color:var(--green-d);border:1.5px solid var(--green);box-shadow:var(--sh-sm)}
.btn-secondary:hover{background:var(--green-bg);text-decoration:none}
.btn-ghost{background:transparent;color:var(--ink2);border:1.5px solid var(--border)}
.btn-ghost:hover{border-color:var(--ink3);color:var(--ink)}
.btn-lg{padding:14px 26px;font-size:1.02rem}
.btn-md{padding:10px 18px;font-size:.94rem}
.btn-sm{padding:8px 14px;font-size:.88rem}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* Hero */
.hero{position:relative;padding:64px 0 36px;background:
  radial-gradient(900px 420px at 85% -10%,rgba(34,197,94,.14),transparent 60%),
  radial-gradient(700px 380px at 8% 0%,rgba(22,163,74,.10),transparent 60%)}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(22,163,74,.14) 1px,transparent 1px);background-size:26px 26px;mask-image:linear-gradient(#000 0%,transparent 70%);pointer-events:none}
.hero .container{position:relative}
.hero h1{font-size:clamp(2.1rem,5.2vw,3.4rem);font-weight:800;letter-spacing:-.03em;line-height:1.08;max-width:18ch}
.hero h1 em{font-style:normal;color:var(--green-d)}
.hero-sub{margin-top:16px;font-size:clamp(1rem,2vw,1.16rem);color:var(--ink2);max-width:58ch}
.hero-ctas{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.trust-strip{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px}
.trust-item{display:inline-flex;align-items:center;gap:7px;font-size:.88rem;font-weight:600;color:var(--ink2)}
.trust-item svg{width:16px;height:16px;color:var(--green);flex:none}

/* Breadcrumbs */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--ink3);margin-top:16px}
.breadcrumb a{color:var(--ink2)}

/* Sections */
section{padding:56px 0}
.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--green-d);background:var(--green-bg);border:1px solid rgba(22,163,74,.25);padding:5px 12px;border-radius:999px}
.section-title{font-size:clamp(1.5rem,3.2vw,2.1rem);font-weight:800;letter-spacing:-.02em;margin-top:12px}
.section-sub{color:var(--ink2);margin-top:8px;max-width:64ch}
.grid{display:grid;gap:18px}
.g-4{grid-template-columns:repeat(4,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:1000px){.g-4{grid-template-columns:repeat(2,1fr)}.g-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g-4,.g-3,.g-2{grid-template-columns:1fr}}

.card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-sm);transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:var(--sh-md);transform:translateY(-2px)}
.card h3{font-size:1.05rem;font-weight:700;letter-spacing:-.01em}
.card p{color:var(--ink2);font-size:.93rem;margin-top:8px}
.icon-badge{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--green-bg);color:var(--green-d);margin-bottom:14px}
.icon-badge svg{width:22px;height:22px}
.icon-badge.amber{background:#FFFBEB;color:#B45309}
.tool-card{display:flex;flex-direction:column}
.tool-card .btn{margin-top:auto;align-self:flex-start}

/* Steps / guide */
.steps{counter-reset:st;display:grid;gap:14px}
.step-item{display:flex;gap:16px;align-items:flex-start;background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);padding:18px;box-shadow:var(--sh-sm)}
.step-num{counter-increment:st;flex:none;width:36px;height:36px;border-radius:12px;background:var(--green);color:#fff;font-weight:800;display:grid;place-items:center;font-size:1rem}
.step-num::before{content:counter(st)}
.step-item h3{font-size:1rem;font-weight:700}
.step-item p{color:var(--ink2);font-size:.9rem;margin-top:4px}

/* Dark section */
.dark-section{background:var(--dark);color:#E2E8F0}
.dark-section .section-kicker{background:rgba(34,197,94,.12);border-color:rgba(34,197,94,.4);color:var(--green-l)}
.dark-section .section-sub{color:#94A3B8}
.dark-list{display:grid;gap:14px;margin-top:26px;grid-template-columns:repeat(2,1fr)}
@media(max-width:760px){.dark-list{grid-template-columns:1fr}}
.dark-list li{list-style:none;display:flex;gap:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);border-radius:14px;padding:16px;font-size:.93rem;color:#CBD5E1}
.dark-list svg{flex:none;width:20px;height:20px;color:var(--green-l);margin-top:2px}

/* FAQ */
.faq-list{max-width:820px;margin:26px auto 0;display:grid;gap:12px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-sm)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:14px;text-align:left;padding:18px 20px;font-weight:700;font-size:.98rem}
.faq-q svg{flex:none;width:18px;height:18px;color:var(--green-d);transition:transform .25s}
.faq-item.open .faq-q svg{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{padding:0 20px 18px;color:var(--ink2);font-size:.93rem}

/* Footer */
.site-footer{background:var(--dark);color:#94A3B8;padding:56px 0 32px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.3fr repeat(4,1fr);gap:32px}
@media(max-width:960px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}
.footer-brand p{font-size:.88rem;margin-top:12px;max-width:30ch}
.footer-col h4{color:#fff;font-size:.9rem;font-weight:700;margin-bottom:14px}
.footer-col a{display:block;color:#94A3B8;text-decoration:none;font-size:.88rem;padding:4px 0;transition:color .15s}
.footer-col a:hover{color:var(--green-l)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.09);margin-top:44px;padding-top:24px;font-size:.82rem;display:grid;gap:10px}
.footer-bottom .disclaimer{color:#64748B}

/* Toast */
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:var(--dark);color:#fff;padding:12px 20px;border-radius:12px;font-size:.9rem;font-weight:600;box-shadow:var(--sh-lg);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;z-index:150;max-width:min(92vw,480px);text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.error{background:#B91C1C}
@media(max-width:960px){.toast{bottom:96px}}
[hidden]{display:none!important}