:root{
  --brand:#1e40af;
  --brand-dark:#1e3a8a;
  --brand-light:#dbeafe;
  --accent:#f59e0b;
  --accent-light:#fef3c7;
  --eco:#16a34a;
  --eco-light:#dcfce7;
  --ink:#0f172a;
  --muted:#475569;
  --bg:#ffffff;
  --bg-soft:#f8fafc;
}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:'Inter','system-ui',-apple-system,Segoe UI,sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{letter-spacing:-0.02em;font-weight:700}

/* ── BUTTONS ─────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.875rem 1.5rem;border-radius:.75rem;font-weight:600;transition:all .18s ease;min-height:48px;text-decoration:none;cursor:pointer;border:0;font-size:.95rem}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 14px -2px rgba(30,64,175,.35)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 8px 22px -4px rgba(30,64,175,.45)}
.btn-accent{background:var(--accent);color:#0f172a;box-shadow:0 4px 14px -2px rgba(245,158,11,.4)}
.btn-accent:hover{background:#d97706;transform:translateY(-1px)}
.btn-outline{border:2px solid var(--brand);color:var(--brand);background:#fff}
.btn-outline:hover{background:var(--brand);color:#fff}
.btn-ghost{color:var(--muted);background:transparent}
.btn-ghost:hover{color:var(--brand);background:#f1f5f9}

/* ── PILLS / BADGES ──────────────────────────────── */
.pill{display:inline-flex;align-items:center;gap:.4rem;padding:.35rem .8rem;border-radius:9999px;font-size:.8125rem;font-weight:600}
.pill-success{background:var(--eco-light);color:#166534}
.pill-brand{background:var(--brand-light);color:var(--brand-dark)}
.pill-accent{background:var(--accent-light);color:#92400e}
.pill-danger{background:#fee2e2;color:#991b1b}

/* ── CARDS ───────────────────────────────────────── */
.card{background:#fff;border:1px solid #e2e8f0;border-radius:1rem;padding:1.75rem;transition:all .2s ease}
.card:hover{border-color:#cbd5e1;box-shadow:0 12px 30px -10px rgba(15,23,42,.12);transform:translateY(-2px)}
.card-elevated{box-shadow:0 25px 50px -12px rgba(15,23,42,.15)}

/* ── BACKGROUNDS ─────────────────────────────────── */
.gradient-hero{background:radial-gradient(ellipse at top right,#dbeafe 0%,transparent 55%),radial-gradient(ellipse at bottom left,#fef3c7 0%,transparent 50%),#fff}
.gradient-band{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%)}
.gradient-eco{background:linear-gradient(135deg,#16a34a 0%,#15803d 100%)}
.gradient-amber{background:linear-gradient(135deg,#f59e0b 0%,#d97706 100%)}

/* ── CHECK LIST ──────────────────────────────────── */
.check-list li{position:relative;padding-left:1.75rem}
.check-list li::before{content:"";position:absolute;left:0;top:.35rem;width:1.125rem;height:1.125rem;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2316a34a'><path d='M9 16.2l-3.5-3.5L4 14.2 9 19.2 20 8.2l-1.5-1.5z'/></svg>") center/contain no-repeat}

/* ── ACCESSIBILITY ───────────────────────────────── */
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:.5rem}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:.75rem 1rem;border-radius:0 0 .5rem 0}
.skip-link:focus{left:0;z-index:9999}

/* ── FAQ DETAILS ─────────────────────────────────── */
details>summary{cursor:pointer;list-style:none}
details>summary::-webkit-details-marker{display:none}
details[open] .faq-icon{transform:rotate(45deg)}
.faq-icon{transition:transform .2s ease}

/* ── MISC ────────────────────────────────────────── */
.star{color:#f59e0b}
.avatar{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:9999px;font-weight:700;color:#fff;font-size:1rem}
.scarcity-dot{display:inline-block;width:8px;height:8px;background:#ef4444;border-radius:9999px;margin-right:.5rem;animation:pulse 1.8s infinite ease-in-out}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(1.25)}}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* ── HEADER ──────────────────────────────────────── */
.header-sticky{backdrop-filter:saturate(140%) blur(10px);background:rgba(255,255,255,.82);border-bottom:1px solid rgba(15,23,42,.06)}
.logo-mark{display:inline-flex;align-items:center;gap:.6rem;font-weight:800;letter-spacing:-.02em;color:var(--brand-dark);text-decoration:none}
.logo-mark svg{width:28px;height:28px}
.nav-link{color:#475569;font-weight:500;font-size:.9rem;text-decoration:none;padding:.4rem 0;border-bottom:2px solid transparent;transition:all .15s ease}
.nav-link:hover{color:var(--brand-dark)}
.nav-link.is-active{color:var(--brand-dark);border-bottom-color:var(--accent)}

/* ── FUNNEL SHELL ────────────────────────────────── */
.funnel-shell{background:linear-gradient(180deg,#f8fafc 0%,#fff 100%);border:1px solid #e2e8f0;border-radius:1.25rem;padding:1rem;box-shadow:0 25px 60px -20px rgba(30,64,175,.18)}

/* ── COOKIE BANNER ───────────────────────────────── */
.cookie-banner{position:fixed;left:50%;bottom:1rem;transform:translateX(-50%);max-width:46rem;width:calc(100% - 2rem);background:#fff;border:1px solid #e2e8f0;border-radius:1rem;box-shadow:0 25px 50px -12px rgba(15,23,42,.25);padding:1.25rem 1.5rem;z-index:90;display:none}
.cookie-banner.is-visible{display:block}
.cookie-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.25);backdrop-filter:blur(2px);z-index:80;display:none}
.cookie-backdrop.is-visible{display:block}
.toggle{position:relative;display:inline-block;width:38px;height:22px}
.toggle input{opacity:0;width:0;height:0}
.toggle .slider{position:absolute;cursor:pointer;inset:0;background:#cbd5e1;border-radius:9999px;transition:.2s}
.toggle .slider::before{content:"";position:absolute;height:16px;width:16px;left:3px;top:3px;background:#fff;border-radius:9999px;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.toggle input:checked + .slider{background:var(--brand)}
.toggle input:checked + .slider::before{transform:translateX(16px)}
.toggle input:disabled + .slider{background:var(--eco);cursor:not-allowed}
.toggle input:disabled + .slider::before{transform:translateX(16px)}

/* ── BACK TO TOP ─────────────────────────────────── */
.back-to-top{position:fixed;right:1.25rem;bottom:1.25rem;width:48px;height:48px;border-radius:9999px;background:var(--brand);color:#fff;border:0;display:none;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 10px 25px -5px rgba(30,64,175,.4);z-index:60;transition:all .2s ease}
.back-to-top.is-visible{display:inline-flex}
.back-to-top:hover{background:var(--brand-dark);transform:translateY(-3px)}

/* ── CASE STUDY VISUAL ───────────────────────────── */
.energy-bar{position:relative;height:28px;border-radius:6px;display:flex;align-items:center;padding:0 .65rem;color:#fff;font-weight:700;font-size:.8125rem;overflow:hidden}
.energy-bar.before{background:linear-gradient(90deg,#10b981 0%,#84cc16 18%,#facc15 38%,#fb923c 58%,#ef4444 80%,#991b1b 100%)}
.energy-bar.after{background:linear-gradient(90deg,#10b981 0%,#22c55e 100%)}
.stat-big{font-size:2.25rem;font-weight:800;line-height:1;letter-spacing:-.03em}
.stat-label{font-size:.75rem;text-transform:uppercase;font-weight:700;letter-spacing:.08em;color:var(--muted)}

/* ── FORM ────────────────────────────────────────── */
.form-input{width:100%;padding:.75rem 1rem;border:2px solid #e2e8f0;border-radius:.75rem;font-size:1rem;transition:all .15s ease;background:#fff}
.form-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(30,64,175,.12)}
.form-label{display:block;font-weight:600;font-size:.875rem;margin-bottom:.4rem;color:#334155}