/* ─── Google Fonts ─── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ─── CSS Custom Properties ─── */
:root {
  --color-primary:       #2E7D32;
  --color-primary-dark:  #1B5E20;
  --color-secondary:     #1565C0;
  --color-secondary-dark:#0D47A1;
  --color-accent:        #4CAF50;
  --color-dark:          #1A1A1A;
  --color-light:         #F5F5F5;
  --color-white:         #FFFFFF;
  --color-border:        #E0E0E0;
  --color-text:          #2D2D2D;
  --color-text-muted:    #6B7280;
  --font-primary:        'Inter', system-ui, -apple-system, sans-serif;
  --max-width:           1200px;
  --nav-height:          70px;
  --radius:              8px;
  --radius-lg:           16px;
  --shadow-sm:           0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:           0 4px 12px rgba(0,0,0,.12);
  --shadow-lg:           0 8px 32px rgba(0,0,0,.16);
  --transition:          200ms ease;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; font-size: 16px; }
body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
main { flex: 1; }
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
address { font-style: normal; }
input, textarea, select { font-family: inherit; }

/* ─── Typography ─── */
h1 { font-size: clamp(2rem, 5vw, 3.25rem); line-height: 1.12; font-weight: 800; color: var(--color-dark); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); line-height: 1.2; font-weight: 700; color: var(--color-dark); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.45rem); line-height: 1.3; font-weight: 700; color: var(--color-dark); }
h4 { font-size: 1rem; line-height: 1.4; font-weight: 700; color: var(--color-dark); }
p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }
strong { font-weight: 700; }

/* ─── Layout ─── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-sm { padding: 56px 0; }
.section-inner { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section-light { background: var(--color-light); }
.section-dark { background: var(--color-dark); }
.section-dark h2, .section-dark h3, .section-dark h4 { color: var(--color-white); }
.section-dark p { color: rgba(255,255,255,.72); }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-header h2 { margin-bottom: 14px; }
.section-header p { color: var(--color-text-muted); font-size: 1.05rem; }
.section-dark .section-header p { color: rgba(255,255,255,.62); }

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), box-shadow var(--transition),
              transform var(--transition);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1;
}
.btn:hover  { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: 0 4px 14px rgba(46,125,50,.35);
}
.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-white);
  border-color: var(--color-secondary);
}
.btn-secondary:hover {
  background: var(--color-secondary-dark);
  border-color: var(--color-secondary-dark);
}
.btn-outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,.55);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--color-white);
}
.btn-outline-green {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline-green:hover {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-lg { padding: 17px 34px; font-size: 1.05rem; }
.btn-sm { padding: 9px 18px; font-size: .85rem; }

/* ─── Navigation ─── */
.nav {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  height: var(--nav-height);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark { width: 38px; height: 38px; flex-shrink: 0; }
.logo-text  { font-size: .88rem; font-weight: 700; color: var(--color-dark); letter-spacing: -.01em; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}
.nav-links a {
  padding: 8px 13px;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover { color: var(--color-primary); background: rgba(46,125,50,.06); }
.nav-links a.active { color: var(--color-primary); background: rgba(46,125,50,.08); font-weight: 600; }
.nav-cta   { margin-left: 16px; flex-shrink: 0; }
.nav-mobile-cta { display: none; }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 6px;
  margin-left: auto;
  border-radius: 6px;
  transition: background var(--transition);
}
.nav-toggle:hover { background: var(--color-light); }
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle  { display: flex; }
  .nav-cta     { display: none; }
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px 20px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-110%);
    transition: transform .25s ease;
    margin-left: 0;
    gap: 2px;
    z-index: 999;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { font-size: .95rem; padding: 12px 14px; }
  .nav-mobile-cta { display: block; padding-top: 8px; }
  .nav-mobile-cta .btn { width: 100%; justify-content: center; }
}

/* ─── Footer ─── */
.footer { background: var(--color-dark); color: #9CA3AF; }
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 56px 24px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 56px;
}
.footer-brand .nav-logo  { margin-bottom: 20px; }
.footer-brand .logo-text { color: var(--color-white); }
.footer-brand address    { font-size: .87rem; line-height: 1.9; color: #9CA3AF; margin-bottom: 14px; }
.footer-brand p          { font-size: .87rem; line-height: 1.7; }
.footer-brand a          { color: #9CA3AF; transition: color var(--transition); }
.footer-brand a:hover    { color: var(--color-accent); }
.footer h4 {
  color: var(--color-white);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 600;
  margin-bottom: 20px;
}
.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a  { font-size: .88rem; color: #9CA3AF; transition: color var(--transition); }
.footer-links a:hover { color: var(--color-accent); }
.footer-certs .cert-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.cert-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 12px;
  border: 1px solid #374151;
  border-radius: 4px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: #D1D5DB;
  background: rgba(255,255,255,.03);
}
.footer-base { border-top: 1px solid #1F2937; }
.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 24px;
}
.footer-bottom p { font-size: .78rem; color: #4B5563; margin: 0; }

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; gap: 36px; padding-bottom: 36px; }
}

/* ─── Hero ─── */
.hero {
  background: linear-gradient(150deg, #0D1F0E 0%, #1A2F1B 40%, #152238 100%);
  color: var(--color-white);
  padding: 100px 24px 88px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(46,125,50,.22) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner  { position: relative; max-width: 880px; margin: 0 auto; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(76,175,80,.14);
  border: 1px solid rgba(76,175,80,.3);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 24px;
}
.hero h1 { color: var(--color-white); margin-bottom: 22px; }
.hero .hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: rgba(255,255,255,.7);
  max-width: 620px;
  margin: 0 auto 40px;
  line-height: 1.75;
}
.hero-ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ─── Cert Bar ─── */
.cert-bar { background: var(--color-primary-dark); padding: 14px 24px; }
.cert-bar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.cert-bar-label {
  font-size: .67rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: rgba(255,255,255,.5);
  white-space: nowrap;
  margin-right: 6px;
}
.cert-chip {
  padding: 4px 12px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 3px;
  font-size: .71rem;
  font-weight: 700;
  letter-spacing: .07em;
  color: var(--color-white);
  white-space: nowrap;
}
.cert-divider { color: rgba(255,255,255,.2); font-size: .55rem; user-select: none; }

/* ─── Cards ─── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 24px;
}
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); border-color: #C8E6C9; }
.card-tag {
  display: inline-flex;
  align-items: center;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
  align-self: flex-start;
}
.tag-green { background: #E8F5E9; color: var(--color-primary); }
.tag-gray  { background: #F3F4F6; color: #6B7280; }
.card h3 { margin-bottom: 10px; }
.card p  { color: var(--color-text-muted); font-size: .92rem; flex: 1; }
.card-certs  { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0; }
.card-cert {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .06em;
  padding: 3px 8px;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  color: var(--color-text-muted);
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 20px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: gap var(--transition);
}
.card-link:hover { gap: 10px; }
.card.coming-soon { opacity: .55; pointer-events: none; }
.coming-soon-badge {
  display: inline-block;
  margin-top: 16px;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #9CA3AF;
}

/* ─── Feature Blocks ─── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 40px;
}
.feature-block { text-align: center; }
.feature-icon {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: rgba(46,125,50,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  font-size: 1.6rem;
}
.section-dark .feature-icon { background: rgba(76,175,80,.12); }
.feature-block h3 { font-size: 1.08rem; margin-bottom: 10px; }
.feature-block p  { color: var(--color-text-muted); font-size: .9rem; line-height: 1.75; }
.section-dark .feature-block p { color: rgba(255,255,255,.6); }

/* ─── Founder Callout ─── */
.founder-callout {
  background: linear-gradient(135deg, #0D1F0E 0%, #0D2A47 100%);
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  text-align: center;
  color: var(--color-white);
}
.founder-callout blockquote {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  line-height: 1.75;
  color: rgba(255,255,255,.82);
  font-style: italic;
  max-width: 780px;
  margin: 0 auto 24px;
}
.founder-callout cite  { font-size: .85rem; color: rgba(255,255,255,.48); font-style: normal; }
.founder-callout .cite-link { margin-top: 20px; }
.founder-callout .cite-link a { color: var(--color-accent); text-decoration: underline; text-decoration-color: rgba(76,175,80,.4); font-size: .9rem; font-weight: 600; }
.founder-callout .cite-link a:hover { text-decoration-color: var(--color-accent); }

/* ─── CTA Band ─── */
.cta-band { background: var(--color-primary); padding: 72px 24px; text-align: center; }
.cta-band h2 { color: var(--color-white); margin-bottom: 14px; }
.cta-band p  {
  color: rgba(255,255,255,.8);
  font-size: 1.08rem;
  margin-bottom: 32px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}
.cta-band-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ─── Support CTA Strip ─── */
.support-strip {
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.support-strip h3 { margin-bottom: 4px; }
.support-strip p  { color: var(--color-text-muted); font-size: .92rem; margin: 0; }

/* ─── Page Header ─── */
.page-header {
  background: linear-gradient(135deg, #0D1F0E 0%, #152238 100%);
  color: var(--color-white);
  padding: 56px 24px 52px;
}
.page-header-inner { max-width: var(--max-width); margin: 0 auto; }
.page-header h1 { color: var(--color-white); margin-bottom: 12px; }
.page-header p  { color: rgba(255,255,255,.68); font-size: 1.1rem; max-width: 580px; margin: 0; }

/* ─── Breadcrumb ─── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .79rem;
  color: rgba(255,255,255,.42);
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.breadcrumb a           { color: rgba(255,255,255,.58); transition: color var(--transition); }
.breadcrumb a:hover     { color: var(--color-accent); }
.breadcrumb-sep         { opacity: .3; }

/* ─── Content Areas ─── */
.content-wrap   { max-width: var(--max-width); margin: 0 auto; padding: 64px 24px; }
.content-narrow { max-width: 760px;            margin: 0 auto; padding: 64px 24px; }

/* ─── Stub Placeholder ─── */
.stub-placeholder {
  background: var(--color-light);
  border: 2px dashed #D1D5DB;
  border-radius: var(--radius-lg);
  padding: 80px 32px;
  text-align: center;
}
.stub-placeholder h3 { color: #9CA3AF; margin-bottom: 10px; font-size: 1.1rem; }
.stub-placeholder p  { color: #9CA3AF; font-size: .92rem; max-width: 460px; margin: 0 auto; }

/* ─── Support Sub-nav ─── */
.support-subnav { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.support-subnav a {
  padding: 9px 18px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: .84rem;
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition);
}
.support-subnav a:hover  { border-color: var(--color-primary); color: var(--color-primary); background: rgba(46,125,50,.05); }
.support-subnav a.active { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }

/* ─── Form ─── */
.form-wrap { max-width: 640px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: .87rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: .95rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
  appearance: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(46,125,50,.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 540px) { .form-row { grid-template-columns: 1fr; } }

/* ─── HubSpot placeholder ─── */
.hs-placeholder {
  background: var(--color-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 56px 32px;
  text-align: center;
}
.hs-placeholder p { color: var(--color-text-muted); font-size: .9rem; margin-top: 8px; }

/* ─── Utilities ─── */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.text-center { text-align: center; }
.text-muted   { color: var(--color-text-muted); }
.mt-0  { margin-top: 0 !important; }
.mb-0  { margin-bottom: 0 !important; }
.mb-1  { margin-bottom: 8px; }
.mb-2  { margin-bottom: 16px; }
.mb-3  { margin-bottom: 24px; }
.mb-4  { margin-bottom: 32px; }
.mt-2  { margin-top: 16px; }
.mt-4  { margin-top: 32px; }
.gap-3 { gap: 24px; }
.d-flex      { display: flex; }
.flex-wrap   { flex-wrap: wrap; }
.align-center { align-items: center; }

/* ─── Product Hero ─── */
.product-hero {
  background: linear-gradient(150deg, #0D1F0E 0%, #1A2F1B 40%, #152238 100%);
  color: var(--color-white);
  padding: 72px 24px 64px;
  position: relative;
  overflow: hidden;
}
.product-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 40% 0%, rgba(46,125,50,.22) 0%, transparent 65%);
  pointer-events: none;
}
.product-hero-inner { position: relative; max-width: var(--max-width); margin: 0 auto; }
.product-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(76,175,80,.14);
  border: 1px solid rgba(76,175,80,.28);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: .73rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 18px;
}
.product-hero h1 { color: var(--color-white); margin-bottom: 10px; }
.product-tagline  {
  font-size: clamp(.95rem, 2.2vw, 1.15rem);
  color: rgba(255,255,255,.65);
  margin-bottom: 28px;
  max-width: 600px;
  font-style: italic;
}
.product-cert-row  { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 36px; }
.product-cert-chip {
  padding: 7px 18px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 4px;
  font-size: .77rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--color-white);
}
.product-hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* ─── Spec Table ─── */
.spec-table-wrap { border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table thead th {
  text-align: left;
  padding: 12px 20px;
  background: var(--color-dark);
  color: var(--color-white);
  font-size: .77rem;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
}
.spec-table tbody tr:nth-child(even) td { background: var(--color-light); }
.spec-table tbody td { padding: 12px 20px; font-size: .93rem; border-bottom: 1px solid var(--color-border); vertical-align: top; }
.spec-table tbody tr:last-child td { border-bottom: none; }
.spec-table .spec-label { font-weight: 600; color: var(--color-text); }

/* ─── Menu Level Cards ─── */
.menu-levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 175px), 1fr));
  gap: 14px;
}
.menu-level-card {
  background: var(--color-light);
  border-radius: var(--radius);
  padding: 18px 20px;
  border-left: 3px solid var(--color-primary);
}
.menu-level-card .lvl-name {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 7px;
}
.menu-level-card p { font-size: .87rem; color: var(--color-text-muted); margin: 0; line-height: 1.6; }

/* ─── Compatible Meters ─── */
.meters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 16px;
}
.meter-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 26px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.meter-card:hover { border-color: #C8E6C9; box-shadow: var(--shadow-sm); }
.meter-card h4 { margin-bottom: 6px; }
.meter-card .meter-detail { font-size: .88rem; color: var(--color-text-muted); line-height: 1.7; }
.meter-card .meter-type {
  display: inline-flex;
  margin-top: 14px;
  font-size: .69rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  padding: 4px 11px;
  border-radius: 999px;
  background: #E8F5E9;
  color: var(--color-primary);
}

/* ─── Cert Cards (certifications page) ─── */
.cert-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 275px), 1fr));
  gap: 24px;
}
.cert-card {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.cert-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.cert-card-mark {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 4px;
}
.cert-card-issuer {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}
.cert-card h3 { margin-bottom: 12px; font-size: 1.08rem; }
.cert-card p  { color: var(--color-text-muted); font-size: .9rem; line-height: 1.82; }

/* ─── Standards Compliance List ─── */
.standards-list { display: flex; flex-direction: column; }
.standard-item {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 24px;
  padding: 15px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: baseline;
}
.standard-item:first-child { border-top: 1px solid var(--color-border); }
.standard-code {
  font-size: .83rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.6;
}
.standard-desc { font-size: .92rem; color: var(--color-text-muted); line-height: 1.75; }
@media (max-width: 620px) {
  .standard-item { grid-template-columns: 1fr; gap: 4px; }
}

/* ─── Hazardous Area Block ─── */
.hazard-block {
  background: #FFFDE7;
  border: 1px solid #F9A825;
  border-left: 4px solid #F9A825;
  border-radius: var(--radius-lg);
  padding: 28px 32px;
}
.hazard-block h3 { margin-bottom: 12px; color: #6D4C00; }
.hazard-block p  { font-size: .93rem; color: #5D4037; line-height: 1.8; }
.hazard-block strong { color: #4E3000; }