/* ============================================================
   MeriEVscooter.in — Design System v1.0
   ============================================================ */
:root {
  --green: #16a34a;
  --green-dark: #15803d;
  --green-light: #dcfce7;
  --ink: #0f172a;
  --ink-2: #475569;
  --bg: #f8fafc;
  --card: #ffffff;
  --line: #e2e8f0;
  --amber: #f59e0b;
  --red: #dc2626;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 4px 14px rgba(15, 23, 42, .05);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Noto Sans', sans-serif; background: var(--bg); color: var(--ink); line-height: 1.7; -webkit-font-smoothing: antialiased; font-size: 1.06rem; }

/* ---------- Header ---------- */
.site-header { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; }
.header-inner { max-width: 1100px; margin: 0 auto; padding: 14px 16px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.search-wrap { position: relative; flex: 1; max-width: 340px; min-width: 120px; margin: 0 auto; }
.search-wrap input { width: 100%; padding: 10px 14px 10px 36px; border: 1.5px solid var(--line); border-radius: 99px; font-size: .9rem; background: var(--bg) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="%2364748b" stroke-width="2.5" stroke-linecap="round"><circle cx="11" cy="11" r="7"/><path d="m21 21-4.3-4.3"/></svg>') no-repeat 12px center; color: var(--ink); }
.search-wrap input:focus { outline: none; border-color: var(--green); background-color: #fff; }
.search-dropdown { position: absolute; top: calc(100% + 6px); left: 0; right: 0; background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 10px 30px rgba(15,23,42,.15); max-height: 340px; overflow-y: auto; z-index: 99; display: none; }
.search-dropdown.open { display: block; }
.search-dropdown a { display: block; padding: 10px 14px; font-size: .88rem; color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--line); }
.search-dropdown a:last-child { border-bottom: 0; }
.search-dropdown a:hover { background: var(--green-light); }
.search-dropdown .sr-type { display: block; font-size: .68rem; color: var(--green-dark); font-weight: 700; letter-spacing: .3px; text-transform: uppercase; }
@media (max-width: 640px) {
  .header-inner { padding: 10px 14px; }
  .search-wrap { order: 3; max-width: none; flex-basis: 100%; }
}
.logo { font-weight: 800; font-size: 1.25rem; color: var(--ink); text-decoration: none; display: flex; align-items: center; flex-shrink: 0; }
.logo .logo-img { height: 54px; width: auto; object-fit: contain; display: block; max-width: 50vw; }
@media (min-width: 768px) {
  .logo .logo-img { height: 64px; }
}
.logo .bolt { background: var(--green); color: #fff; width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-size: 1.1rem; }
.logo small { color: var(--green-dark); font-size: .66rem; font-weight: 700; display: block; line-height: 1; margin-top: 2px; letter-spacing: .5px; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: .92rem; font-weight: 600; margin-left: 16px; white-space: nowrap; }
.nav a:hover { color: var(--green-dark); }
.hamburger { display: none; background: none; border: 0; font-size: 1.5rem; color: var(--ink); cursor: pointer; }

/* ---------- Hero (clean, kam text) ---------- */
.hero { background: linear-gradient(135deg, #052e16 0%, #14532d 55%, #166534 100%); color: #fff; padding: 60px 16px 64px; text-align: center; }
.hero h1 { font-size: clamp(1.7rem, 4.5vw, 2.7rem); max-width: 720px; margin: 0 auto 14px; line-height: 1.25; font-weight: 800; }
.hero h1 span { color: #4ade80; }
.hero p { max-width: 560px; margin: 0 auto 26px; color: #bbf7d0; font-size: 1.05rem; }
.hero-cta { display: inline-flex; gap: 10px; align-items: center; background: #4ade80; color: #ffffff; font-weight: 800; padding: 15px 30px; border-radius: 99px; text-decoration: none; font-size: 1.05rem; box-shadow: 0 8px 24px rgba(74,222,128,.35); }
.hero-cta:hover { background: #86efac; }

/* ---------- Layout ---------- */
.container { max-width: 1100px; margin: 0 auto; padding: 30px 16px 60px; }
.section-title { font-size: 1.55rem; margin-bottom: 6px; }
.section-sub { color: var(--ink-2); font-size: 1rem; margin-bottom: 20px; }

/* ---------- Tool cards ---------- */
.tool-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin: 18px 0 30px; }
.tool-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; text-decoration: none; color: inherit; box-shadow: var(--shadow); transition: transform .15s, box-shadow .15s; display: flex; flex-direction: column; gap: 10px; }
.tool-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(15,23,42,.12); }
.tool-card .icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 1.4rem; background: var(--green-light); }
.tool-card h3 { font-size: 1.1rem; }
.tool-card p { font-size: .93rem; color: var(--ink-2); flex: 1; }
.tool-card .go { color: var(--green-dark); font-weight: 700; font-size: .9rem; }

/* ---------- State grid ---------- */
.state-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin: 16px 0 8px; }
.state-link { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; text-decoration: none; color: var(--ink); font-size: .92rem; font-weight: 600; display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.state-link:hover { border-color: var(--green); background: var(--green-light); }
.state-link .hot { background: var(--amber); color: #fff; font-size: .62rem; font-weight: 800; padding: 2px 7px; border-radius: 99px; letter-spacing: .4px; }

/* ---------- Calculator page ---------- */
.calc-wrap { max-width: 780px; margin: 0 auto; }
.calc-wrap img { width: 100%; max-width: 640px; height: auto; border-radius: 12px; display: block; margin: 0 auto 22px; }
.calc-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 26px; margin-bottom: 22px; }
.calc-card h2 { font-size: 1.12rem; margin-bottom: 14px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: .9rem; font-weight: 700; color: var(--ink-2); margin-bottom: 6px; }
.field select, .field input { width: 100%; padding: 13px 14px; border: 1.5px solid var(--line); border-radius: 10px; font-size: 1rem; background: #fff; color: var(--ink); }
.field select:focus, .field input:focus { outline: none; border-color: var(--green); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.check { display: flex; align-items: center; gap: 10px; font-size: .95rem; font-weight: 600; }
.check input { width: 19px; height: 19px; accent-color: var(--green); }
.btn { background: var(--green); color: #fff; border: 0; border-radius: 10px; padding: 15px 22px; font-size: 1.05rem; font-weight: 800; cursor: pointer; width: 100%; }
.btn:hover { background: var(--green-dark); }
.btn.amber { background: var(--amber); }
.btn.amber:hover { background: #d97706; }

/* ---------- Results ---------- */
.result-hidden { display: none; }
.result-box { border: 1.5px solid var(--green); background: var(--green-light); border-radius: var(--radius); padding: 18px; margin-top: 18px; }
.result-box .big { font-size: 1.6rem; font-weight: 800; color: var(--green-dark); }
.layer-list { margin: 14px 0 0; list-style: none; }
.layer-list li { display: flex; justify-content: space-between; gap: 10px; padding: 9px 0; border-bottom: 1px dashed var(--line); font-size: .88rem; }
.layer-list li:last-child { border-bottom: 0; }
.layer-list .amt { font-weight: 700; white-space: nowrap; }
.layer-list .amt.neg { color: var(--red); }
.layer-note { font-size: .76rem; color: var(--ink-2); display: block; margin-top: 2px; text-align: left; }
.notes-box { background: #fef3c7; border: 1px solid #fde68a; border-radius: 10px; padding: 12px 14px; font-size: .8rem; color: #92400e; margin-top: 14px; }
.notes-box ul { margin: 6px 0 0 16px; }
.source-line { font-size: .74rem; color: var(--ink-2); margin-top: 10px; }

/* ---------- FAQ ---------- */
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; margin-bottom: 10px; }
.faq summary { font-weight: 700; font-size: 1rem; cursor: pointer; }
.faq p { font-size: .95rem; color: var(--ink-2); margin-top: 8px; }

/* ---------- Blog cards ---------- */
.post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.post-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.post-card .thumb { height: 130px; background: linear-gradient(135deg, #14532d, #16a34a); display: grid; place-items: center; color: #fff; font-size: 2.6rem; text-shadow: 0 4px 14px rgba(0,0,0,.35); }
.post-card .body { padding: 14px 16px; }
.post-card h3 { font-size: .95rem; line-height: 1.4; }
.post-card h3 a { color: inherit; text-decoration: none; }
.post-card h3 a:hover { color: var(--green-dark); }
.post-card .meta { font-size: .74rem; color: var(--ink-2); margin-top: 6px; }

/* ---------- Article ---------- */
.article { max-width: 760px; margin: 0 auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow); }
.article h1 { font-size: 1.6rem; line-height: 1.3; margin-bottom: 6px; }
.article .byline { color: var(--ink-2); font-size: .8rem; margin-bottom: 18px; }
.article h2 { font-size: 1.45rem; margin: 30px 0 10px; }
.article h3 { font-size: 1.12rem; margin: 20px 0 6px; }
.article p { font-size: 1.03rem; margin-bottom: 14px; }
.article ul, .article ol { margin: 0 0 16px 20px; font-size: 1rem; }
.article li { margin-bottom: 6px; }
.article table { width: 100%; border-collapse: collapse; font-size: .92rem; margin: 16px 0; }
.article th, .article td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.article th { background: var(--green-light); font-size: .88rem; }
.article .note { background: #fef3c7; border-left: 4px solid var(--amber); padding: 12px 16px; border-radius: 8px; font-size: .95rem; margin: 16px 0; }
.article .callout { background: var(--green-light); border-left: 4px solid var(--green); padding: 12px 16px; border-radius: 8px; font-size: .95rem; margin: 16px 0; }
.article img { max-width: 100%; border-radius: 10px; margin: 10px 0; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--card); padding: 26px 16px; text-align: center; color: var(--ink-2); font-size: .8rem; }
.site-footer a { color: var(--green-dark); text-decoration: none; }
.site-footer .disclaimer { max-width: 700px; margin: 10px auto 0; font-size: .72rem; color: #94a3b8; }

/* ---------- Responsive ---------- */
@media (min-width: 901px) and (max-width: 1200px) {
  .search-wrap { max-width: 220px; }
  .nav a { margin-left: 8px; font-size: .82rem; }
}
@media (max-width: 900px) {
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--card); border-bottom: 1px solid var(--line); padding: 12px 16px; box-shadow: 0 12px 24px rgba(15,23,42,.1); }
  .nav.open { display: flex; flex-direction: column; }
  .nav a { margin: 8px 0; font-size: 1rem; }
  .hamburger { display: block; }
}
@media (max-width: 640px) {
  .search-wrap { order: 3; max-width: none; flex-basis: 100%; }
  .field-row { grid-template-columns: 1fr; }
}