:root {
  --ec-ink: #102a36;
  --ec-muted: #5d7079;
  --ec-line: #d8e2e7;
  --ec-surface: #ffffff;
  --ec-surface-soft: #f4f8fa;
  --ec-accent: #ef8b3a;
  --ec-accent-dark: #b85d19;
  --ec-radius: 14px;
}

html { scroll-behavior: smooth; }
body {
  color: var(--ec-ink);
  background: #f7fafb;
  text-rendering: optimizeLegibility;
}

.ec-topbar {
  position: sticky; top: 0; z-index: 80; width: 100%;
  background: rgba(247, 250, 251, .92); border-bottom: 1px solid var(--ec-line);
  box-shadow: 0 8px 24px rgba(16, 42, 54, .06);
}
.ec-topbar__inner { display: flex; align-items: center; gap: 1.5rem; min-height: 68px; max-width: 1280px; margin: auto; padding: .75rem clamp(1rem, 4vw, 2.5rem); }
.ec-brand { display: inline-flex; align-items: center; gap: .65rem; color: var(--ec-ink); font-weight: 750; font-size: 1.05rem; text-decoration: none; white-space: nowrap; }
.ec-brand__mark { display: grid; place-items: center; width: 32px; height: 32px; color: white; background: var(--ec-ink); border-radius: 9px; font-size: .67rem; letter-spacing: .04em; }
.ec-topbar__nav { display: flex; align-items: center; justify-content: center; gap: clamp(.55rem, 1.4vw, 1.25rem); flex: 1; }
.ec-topbar__nav a, .ec-mobile-nav a { color: var(--ec-muted); text-decoration: none; font-size: .9rem; font-weight: 560; }
.ec-topbar__nav a:hover, .ec-topbar__nav a[aria-current="page"], .ec-mobile-nav a:hover, .ec-mobile-nav a[aria-current="page"] { color: var(--ec-ink); }
.ec-topbar__nav a[aria-current="page"], .ec-mobile-nav a[aria-current="page"] { box-shadow: inset 0 -2px var(--ec-accent); }
.ec-topbar__actions { display: flex; align-items: center; gap: .65rem; }
.ec-topbar__cta { display: inline-flex; align-items: center; min-height: 40px; padding: .55rem .8rem; color: white !important; background: var(--ec-ink); border-radius: 9px; text-decoration: none; font-size: .82rem; font-weight: 700; }
.ec-topbar__cta:hover { background: var(--ec-accent-dark); }
.ec-menu-toggle { display: none; min-width: 40px; min-height: 40px; color: var(--ec-ink); background: transparent; border: 1px solid var(--ec-line); border-radius: 9px; }
.ec-mobile-nav { display: none; max-width: 1280px; margin: auto; padding: 0 1rem 1rem; gap: .25rem; }
.ec-mobile-nav a { padding: .7rem .8rem; border-radius: 8px; }

a { text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--ec-accent) 70%, white);
  outline-offset: 3px;
}

header { backdrop-filter: blur(12px); }
button, a[class*="bg-"] { transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease; }
button:hover, a[class*="bg-"]:hover { transform: translateY(-1px); }
button:active, a[class*="bg-"]:active { transform: translateY(0); }

article, section[class*="rounded"], .bg-surface-container-lowest, .bg-surface {
  border-radius: var(--ec-radius);
}

input[type="number"], input[type="email"], select {
  min-height: 42px;
  border-radius: 10px;
}

table { font-variant-numeric: tabular-nums; }

footer p, footer a, footer li { color: #a9c0c9 !important; }
footer h4, footer [class*="headline"], footer [class*="font-bold"] { color: #f2a05b !important; }
footer a:hover { color: #ffffff !important; }

.ec-toast {
  position: fixed; right: 1rem; bottom: 1rem; z-index: 100;
  max-width: min(92vw, 420px); padding: .85rem 1rem;
  color: white; background: var(--ec-ink); border: 1px solid #42616d;
  border-radius: 12px; box-shadow: 0 12px 32px #102a3633;
}

.ec-tool-rail { display: grid; grid-template-columns: minmax(220px, .8fr) minmax(0, 1.2fr); gap: clamp(1.25rem, 4vw, 3rem); align-items: end; max-width: 1180px; margin: 0 auto; padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 4vw, 2.5rem); }
.ec-tool-rail__intro { max-width: 30rem; }
.ec-tool-rail h2 { margin: .45rem 0 .7rem; color: var(--ec-ink); font-size: clamp(1.45rem, 2.6vw, 2.25rem); line-height: 1.08; }
.ec-tool-rail p { margin: 0; color: var(--ec-muted); line-height: 1.6; }
.ec-eyebrow { color: var(--ec-accent-dark); font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.ec-tool-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .9rem; }
.ec-tool-card { display: grid; gap: .5rem; min-height: 150px; padding: 1.15rem; color: var(--ec-ink); background: rgba(255,255,255,.76); border: 1px solid var(--ec-line); border-radius: 14px; text-decoration: none; box-shadow: 0 8px 24px rgba(18,39,50,.05); transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.ec-tool-card:hover { transform: translateY(-3px); border-color: var(--ec-accent); box-shadow: 0 14px 32px rgba(18,39,50,.1); }
.ec-tool-card strong { font-size: 1.05rem; }
.ec-tool-card > span:last-child { color: var(--ec-muted); font-size: .9rem; line-height: 1.45; }
.ec-tool-card__icon { display: inline-grid; place-items: center; width: 2rem; height: 2rem; color: white; background: var(--ec-ink); border-radius: 8px; font-size: .72rem; font-weight: 800; }
.ec-tool-card--accent { background: var(--ec-ink); color: white; border-color: var(--ec-ink); }
.ec-tool-card--accent > span:last-child { color: rgba(255,255,255,.72); }
.ec-tool-card--accent .ec-tool-card__icon { color: var(--ec-ink); background: var(--ec-accent); }

.ec-disclaimer {
  margin: 1rem auto; max-width: 1100px; padding: .8rem 1rem;
  color: #5b421c; background: #fff5dc; border: 1px solid #f0d79e;
  border-radius: 10px; font-size: .9rem;
}

.ec-shop { color: var(--ec-ink); }
.ec-shop-hero { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(260px, .6fr); gap: clamp(2rem, 6vw, 6rem); align-items: end; max-width: 1280px; margin: 0 auto; padding: clamp(4rem, 10vw, 8rem) clamp(1rem, 4vw, 2.5rem) clamp(3rem, 7vw, 6rem); background: radial-gradient(circle at 80% 20%, #d9f0f7 0, transparent 32%), linear-gradient(135deg, #f7fafb 0%, #edf6f8 100%); }
.ec-shop-hero h1 { max-width: 760px; margin: .55rem 0 1.2rem; font-size: clamp(2.7rem, 7vw, 6rem); letter-spacing: -.065em; line-height: .96; }
.ec-shop-hero p { max-width: 640px; color: var(--ec-muted); font-size: clamp(1rem, 1.6vw, 1.2rem); line-height: 1.65; }
.ec-shop-hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.7rem; }
.ec-button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: .7rem 1rem; border-radius: 10px; text-decoration: none; font-weight: 750; transition: transform .18s ease, background .18s ease; }
.ec-button:hover { transform: translateY(-2px); }
.ec-button--primary { color: white; background: var(--ec-ink); }
.ec-button--primary:hover { background: var(--ec-accent-dark); }
.ec-button--quiet { color: var(--ec-ink); border: 1px solid var(--ec-line); background: rgba(255,255,255,.65); }
.ec-shop-hero__signal { display: grid; grid-template-columns: auto 1fr; gap: .25rem .7rem; padding: 1.2rem; background: rgba(255,255,255,.7); border: 1px solid var(--ec-line); border-radius: 14px; }
.ec-shop-hero__signal span { color: var(--ec-accent-dark); font: 700 .72rem/1.5 'Space Mono', monospace; }
.ec-shop-hero__signal strong { font-size: .95rem; }
.ec-shop-hero__signal p { grid-column: 2; margin: 0 0 .55rem; font-size: .84rem; line-height: 1.35; }
.ec-shop-section { max-width: 1280px; margin: 0 auto; padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 4vw, 2.5rem); }
.ec-shop-section--soft { max-width: none; background: var(--ec-surface-soft); }
.ec-section-heading { display: flex; justify-content: space-between; gap: 2rem; align-items: end; margin-bottom: 1.8rem; }
.ec-section-heading h2 { margin: .45rem 0 0; font-size: clamp(1.7rem, 3vw, 3rem); letter-spacing: -.04em; line-height: 1.05; }
.ec-section-heading p { max-width: 430px; margin: 0; color: var(--ec-muted); line-height: 1.55; }
.ec-family-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .9rem; }
.ec-family-card { display: grid; gap: .55rem; min-height: 230px; padding: 1.25rem; color: white; border-radius: 16px; text-decoration: none; overflow: hidden; transition: transform .2s ease, box-shadow .2s ease; }
.ec-family-card:hover { transform: translateY(-5px); box-shadow: 0 18px 34px rgba(16,42,54,.18); }
.ec-family-card__icon { display: grid; place-items: center; width: 2.5rem; height: 2.5rem; color: var(--ec-ink); background: var(--ec-accent); border-radius: 9px; font-weight: 850; }
.ec-family-card strong { align-self: end; font-size: 1.25rem; }
.ec-family-card > span:not(.ec-family-card__icon) { color: rgba(255,255,255,.75); line-height: 1.4; }
.ec-family-card small { margin-top: auto; color: white; font-weight: 750; }
.ec-family-card--solar { background: linear-gradient(145deg, #164b59, #0e2733); }
.ec-family-card--battery { background: linear-gradient(145deg, #2a4350, #152832); }
.ec-family-card--convert { background: linear-gradient(145deg, #703f27, #39251d); }
.ec-family-card--kit { background: linear-gradient(145deg, #36543e, #183227); }
.ec-proof-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 1280px; margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2.5rem); gap: .9rem; }
.ec-proof-grid article { padding: 1.25rem; background: white; border: 1px solid var(--ec-line); border-radius: 14px; }
.ec-proof-grid b { font-size: 1rem; }
.ec-proof-grid p { margin: .55rem 0 0; color: var(--ec-muted); line-height: 1.55; }
.ec-shop-footer { display: flex; justify-content: space-between; gap: 1rem; align-items: center; padding: 1.5rem clamp(1rem, 4vw, 2.5rem); color: #d9e8ed; background: var(--ec-ink); }
.ec-shop-footer a { color: var(--ec-accent); font-weight: 750; }
@media (max-width: 900px) { .ec-family-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .ec-shop-hero { grid-template-columns: 1fr; } }
@media (max-width: 620px) { .ec-section-heading, .ec-shop-footer { display: block; } .ec-section-heading p { margin-top: 1rem; } .ec-proof-grid { grid-template-columns: 1fr; } .ec-family-grid { grid-template-columns: 1fr; } .ec-shop-footer > * { display: block; margin: .35rem 0; } }

@media (max-width: 768px) {
  .ec-topbar__nav { display: none; }
  .ec-tool-rail { grid-template-columns: 1fr; align-items: start; }
  .ec-tool-rail__intro { max-width: 36rem; }
  .ec-menu-toggle { display: inline-grid; place-items: center; }
  .ec-mobile-nav.ec-mobile-open { display: flex; flex-direction: column; align-items: stretch; }
  main { overflow-x: clip; }
}
@media (max-width: 520px) {
  .ec-tool-grid { grid-template-columns: 1fr; }
}