:root{
  --bg:#0B0C0F; --surface:#ffffff; --ink:#0b1220; --ink-muted:#465066;
  --primary:#0d9488; --primary-ink:#ffffff; --border:#e6e8ef;
  --danger:#b91c1c; --focus:2px solid #0ea5e9; --radius:16px; --gap:8px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;color:var(--ink);background:#f6f8fb;line-height:1.55}
.container{max-width:1120px;margin-inline:auto;padding:16px}
.header{background:var(--bg);color:#eef2ff}
.header-inner{display:flex;align-items:center;gap:12px;padding:12px 16px;max-width:1120px;margin:auto}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.brand svg{display:block;height:45px;width:auto}
.site-title{font-weight:700;letter-spacing:.2px;font-size:18px}
.nav{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
.nav a{color:#e5e7eb;text-decoration:none;padding:8px 10px;border-radius:10px}
.nav a:focus{outline:var(--focus)}
.nav a[aria-current="page"]{background:rgba(255,255,255,.12)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 1px 2px rgba(16,24,40,.04),0 8px 24px rgba(16,24,40,.06);padding:16px;margin-bottom:16px}
.form-grid{display:grid;grid-template-columns:1fr;gap:12px}
.field{display:grid;gap:6px}
label{font-weight:600}
.input-row{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}
input[type="number"],select{width:140px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;font:inherit;background:#fff;color:var(--ink)}
input[type="range"]{width:100%}
.helper{color:var(--ink-muted);font-size:13px}
.toggle{display:flex;align-items:center;gap:8px}
.toggle input{width:20px;height:20px}
.results{display:grid;gap:12px}
.result-item{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;background:#fbfdff;border:1px dashed var(--border);border-radius:12px}
.sticky-cta{position:sticky;bottom:0;background:rgba(255,255,255,.95);backdrop-filter:blur(6px);border-top:1px solid var(--border);padding:8px 12px;display:flex;gap:8px;z-index:9}
.btn{appearance:none;border:0;border-radius:12px;padding:12px 14px;font-weight:700;cursor:pointer}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-outline{background:transparent;border:1px solid var(--border)}
.btn:focus{outline:var(--focus)}
.tooltip{display:none;background:#f0f9ff;border:1px solid #bae6fd;color:#0c4a6e;border-radius:12px;padding:8px 10px}
.tooltip[data-open="true"]{display:block}
.info-btn{background:transparent;border:1px solid var(--border);border-radius:10px;padding:6px 8px;cursor:pointer}
.info-btn:focus{outline:var(--focus)}
.important-info{background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px}
.important-info h2{margin-top:0}
/* .footer{background:var(--bg);color:#cbd5e1}
.footer a{color:#e2e8f0;text-decoration:none}
.footer-inner{max-width:1120px;margin:auto;padding:20px 16px;display:grid;gap:8px} */
.prose{max-width:800px}
.ad-slot{display:block;width:100%;min-height:120px}
@media (min-width:375px){.site-title{font-size:19px}}
@media (min-width:430px){.input-row{grid-template-columns:1fr 160px}}
@media (min-width:768px){.form-grid{grid-template-columns:1fr 1fr}.header-inner{padding:16px}.brand svg{height:45px}}
@media (min-width:1200px){.container{padding:24px}.form-grid{grid-template-columns:repeat(3,1fr)}}

/* --- Drawer Nav + Hamburger --- */
body.no-scroll { overflow: hidden; }

/* Header */
.header { background:#0B0C0F; color:#eef2ff; position: relative; }
.header-inner { display:flex; align-items:center; gap:12px; padding:12px 16px; max-width:1120px; margin:auto; }

.site-title { font-weight:700; letter-spacing:.2px; font-size:18px; }

/* Hamburger button */
.menu-toggle {
  margin-left:auto; display:inline-flex; align-items:center; justify-content:center;
  width:42px; height:42px; border:1px solid var(--border, #e6e8ef);
  border-radius:10px; background:transparent; color:#fff; cursor:pointer;
}
.menu-toggle:focus { outline:2px solid #0ea5e9; outline-offset:2px; }
.menu-box { display:inline-flex; flex-direction:column; gap:4px; }
.menu-bar { width:18px; height:2px; background:#fff; border-radius:2px; display:block;
  transition:transform .2s ease, opacity .2s ease; }
.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(1){ transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(2){ opacity:0; }
.menu-toggle[aria-expanded="true"] .menu-bar:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }

/* Slide-in drawer (mobile) */
.nav{
  position:fixed; top:0; right:0; bottom:0; width:min(82vw, 340px);
  background:#0b0c0f; color:#e5e7eb; border-left:1px solid rgba(255,255,255,.1);
  padding:16px; display:flex; flex-direction:column; gap:6px;
  transform: translateX(100%); transition: transform .25s ease-out; z-index:1001;
}
.nav a{ color:#e5e7eb; text-decoration:none; padding:12px 14px; border-radius:10px; }
.nav a:focus{ outline:2px solid #0ea5e9; outline-offset:2px; }
.nav a[aria-current="page"]{ background:rgba(255,255,255,.12); }
.nav[data-open="true"]{ transform: translateX(0%); }

/* Backdrop */
.backdrop{
  position:fixed; inset:0; background:rgba(0,0,0,.45);
  opacity:0; transition:opacity .2s ease; z-index:1000;
}
.backdrop[data-open="true"]{ opacity:1; }
.backdrop[hidden]{ display:none; }

/* Desktop ≥768px: inline nav, no drawer/backdrop */
@media (min-width:768px){
  .menu-toggle{ display:none; }
  .backdrop{ display:none !important; }
  .nav{
    position:static; transform:none !important; transition:none; border:0; background:transparent;
    flex-direction:row; gap:8px; padding:0; width:auto; height:auto;
  }
}

.disclaimer {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  font-style: italic;
  color: #555;
  background: #f9f9f9;
  border-left: 3px solid #009688; /* teal accent */
  border-radius: 6px;
}

.disclaimer a {
  color: #00796b; /* darker teal for link */
  text-decoration: underline;
}

.disclaimer a:hover {
  color: #004d40; /* even darker on hover */
}

footer {
  margin-top: 40px;
  padding: 20px;
  text-align: center;
  font-size: 0.9em;
  color: #555;
  border-top: 1px solid #eee;
}

footer a {
  color: #0077cc;
  text-decoration: none;
  margin: 0 8px;
}

footer a:hover {
  text-decoration: underline;
}

/* Grid */
.grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: var(--space-4, 1rem); }
.card-post .thumb { position: relative; display:block; overflow:hidden; border-radius: 14px; }
.card-post .thumb img { width:100%; height:auto; aspect-ratio: 16/9; object-fit: cover; display:block; }
.eyebrow { position:absolute; left:.5rem; top:.5rem; background: #e8fbfd; color:#167d83; font-weight:600; font-size:.75rem; padding:.25rem .5rem; border-radius:999px; }
.spark { position:absolute; right:.5rem; bottom:.5rem; width:64px; height:16px; stroke:#167d83; fill:none; stroke-width:2; opacity:.6; }

.hero { display:grid; grid-template-columns: 1.2fr 1fr; gap:1rem; align-items:center; }
.hero-media img { width:100%; height:auto; border-radius:16px; }
.hero .chip-row { display:flex; gap:.5rem; flex-wrap:wrap; margin-top:.5rem; }
.chip { border:1px solid var(--border, #e5e7eb); background:#fff; border-radius:999px; padding:.35rem .75rem; cursor:pointer; }
.chip[aria-pressed="true"] { background:#167d83; color:#fff; border-color:#167d83; }

/* Typographic polish */
.card-post .body h2 { margin:.5rem 0 .25rem; font-size:1.05rem; line-height:1.3; }
.card-post .excerpt { color:#4b5563; margin:.25rem 0 .25rem; }
.card-post .meta { color:#6b7280; font-size:.85rem; }