/* Top Electronic – one-page site. Colors chosen for WCAG AA contrast (4.5:1 text, 3:1 UI). */
:root {
  --c-primary: #0b4f8a;
  --c-primary-dark: #083a66;
  --c-accent: #b45309;
  --c-text: #1f2937;
  --c-muted: #475569;
  --c-bg: #ffffff;
  --c-bg-alt: #f1f6fb;
  --c-border: #cbd5e1;
  --c-error: #b91c1c;
  --c-success: #166534;
  --c-focus: #b45309;
  --radius: 12px;
  --max: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

body {
  margin: 0;
  font-family: "Heebo", "Segoe UI", Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
}

img, svg { max-width: 100%; height: auto; }

h1, h2, h3 { line-height: 1.25; margin: 0 0 .75rem; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.2rem); font-weight: 800; color: var(--c-primary-dark); }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1rem; }

a { color: var(--c-primary); text-underline-offset: .2em; }
a:hover { color: var(--c-primary-dark); }

:focus-visible {
  outline: 3px solid var(--c-focus);
  outline-offset: 3px;
  border-radius: 4px;
}

.container { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }
.narrow { max-width: 820px; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

/* Skip link */
.skip-link {
  position: absolute;
  inset-inline-start: 1rem;
  top: -100px;
  z-index: 100;
  padding: .75rem 1.25rem;
  background: var(--c-primary-dark);
  color: #fff;
  font-weight: 700;
  border-radius: 0 0 8px 8px;
}
.skip-link:focus { top: 0; color: #fff; }
main:focus { outline: none; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid var(--c-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  color: var(--c-primary-dark);
  font-weight: 800;
  font-size: 1.3rem;
  white-space: nowrap;
}
.logo-mark { width: 3rem; height: 3rem; flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-name { font-size: 1.35rem; letter-spacing: -.01em; }
.logo-top { color: var(--c-accent); }
.logo-tagline { font-size: .8rem; font-weight: 500; color: var(--c-muted); }

.nav-list {
  display: flex;
  align-items: center;
  gap: .25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-list a {
  display: inline-block;
  padding: .5rem .75rem;
  color: var(--c-text);
  font-weight: 500;
  text-decoration: none;
  border-radius: 8px;
}
.nav-list a:hover { background: var(--c-bg-alt); color: var(--c-primary-dark); }
.nav-list .nav-cta { background: var(--c-primary); color: #fff; font-weight: 700; }
.nav-list .nav-cta:hover { background: var(--c-primary-dark); color: #fff; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: .5rem;
  min-height: 44px;
  padding: .5rem .9rem;
  font: inherit;
  font-weight: 700;
  color: var(--c-primary-dark);
  background: #fff;
  border: 2px solid var(--c-primary);
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle-bar,
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  display: block;
  width: 18px; height: 2px;
  background: currentColor;
  position: relative;
}
.nav-toggle-bar::before, .nav-toggle-bar::after { content: ""; position: absolute; }
.nav-toggle-bar::before { top: -6px; }
.nav-toggle-bar::after { top: 6px; }

@media (max-width: 900px) {
  .js .nav-toggle { display: inline-flex; }
  .js .nav-list {
    display: none;
    position: absolute;
    inset-inline: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: .75rem 1.25rem 1.25rem;
    background: #fff;
    border-bottom: 1px solid var(--c-border);
    box-shadow: 0 8px 16px rgba(15, 23, 42, .08);
  }
  .js .nav-list.is-open { display: flex; }
  .nav-list { flex-wrap: wrap; }
  .nav-list a { display: block; padding: .75rem; }
}

@media (max-width: 359px) {
  .container { width: min(100% - 1.5rem, var(--max)); }
  .logo-tagline { display: none; }
  .js .nav-toggle-label {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  min-height: 48px;
  padding: .75rem 1.5rem;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  border-radius: 10px;
  border: 2px solid var(--c-primary);
  cursor: pointer;
}
.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-dark); border-color: var(--c-primary-dark); color: #fff; }
.btn-secondary { background: #fff; color: var(--c-primary-dark); }
.btn-secondary:hover { background: var(--c-bg-alt); }

/* Hero */
.hero {
  background: linear-gradient(180deg, #e8f1fa 0%, #ffffff 100%);
  padding-block: clamp(3rem, 8vw, 6rem);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  align-items: center;
  gap: 2.5rem;
}
.eyebrow {
  margin-bottom: .5rem;
  font-weight: 700;
  color: var(--c-accent);
}
.lead { font-size: 1.2rem; color: var(--c-muted); max-width: 38rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }
.hero-art { justify-self: center; }
.hero-art img {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 18px 40px rgba(11, 79, 138, .25);
}

@media (max-width: 760px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art img { max-width: 260px; }
}

/* Sections */
.section { padding-block: clamp(3rem, 7vw, 5rem); }
.section-alt { background: var(--c-bg-alt); }
.section-intro { color: var(--c-muted); }

.split {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
  align-items: start;
}
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 2rem; } }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}
.card {
  padding: 1.5rem;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}
.card p { color: var(--c-muted); margin: 0; }
.card-icon { width: 2.25rem; height: 2.25rem; color: var(--c-primary); margin-bottom: .75rem; }

.check-list { list-style: none; padding: 0; margin: 1.25rem 0 0; }
.check-list li {
  position: relative;
  padding-inline-start: 2rem;
  margin-bottom: .6rem;
}
.check-list li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: .45em;
  width: 1.1rem; height: .6rem;
  border-inline-start: 3px solid var(--c-primary);
  border-bottom: 3px solid var(--c-primary);
  transform: rotate(-45deg) scaleX(-1);
}

.machine-photo { margin: 0; }
.machine-photo img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--c-border);
}
.machine-photo figcaption { margin-top: .6rem; font-size: .95rem; color: var(--c-muted); text-align: center; }

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
}
.tags li {
  padding: .55rem 1.1rem;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  font-weight: 500;
}

.steps {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}
.steps li {
  counter-increment: step;
  padding: 1.5rem;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--c-border);
}
.steps li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 2.5rem; height: 2.5rem;
  margin-bottom: .75rem;
  background: var(--c-primary);
  color: #fff;
  font-weight: 800;
  border-radius: 50%;
}
.steps p { color: var(--c-muted); margin: 0; }

/* FAQ */
.faq details {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  margin-bottom: .75rem;
  background: #fff;
}
.faq summary {
  cursor: pointer;
  padding: 1rem 1.25rem;
  font-weight: 700;
  font-size: 1.1rem;
  list-style-position: inside;
}
.faq details[open] summary { border-bottom: 1px solid var(--c-border); }
.faq details p { padding: 1rem 1.25rem 0; color: var(--c-muted); }

/* Contact */
.contact { background: var(--c-bg-alt); }
.contact-list { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.contact-list li { margin-bottom: .75rem; font-size: 1.1rem; }
.contact-label { font-weight: 700; }

.contact-form {
  padding: 2rem;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}
.form-note, .privacy-note { font-size: .95rem; color: var(--c-muted); }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-weight: 700; margin-bottom: .35rem; }
.field input, .field textarea {
  width: 100%;
  min-height: 48px;
  padding: .65rem .85rem;
  font: inherit;
  color: var(--c-text);
  background: #fff;
  border: 2px solid #64748b;
  border-radius: 8px;
}
.field textarea { resize: vertical; }
.field input:focus-visible, .field textarea:focus-visible { border-color: var(--c-primary); }
.field input[dir="ltr"] { text-align: right; }
.field [aria-invalid="true"] { border-color: var(--c-error); }
.field-error { margin: .35rem 0 0; color: var(--c-error); font-weight: 500; }
.field-error:empty { display: none; }

.error-summary {
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  border: 2px solid var(--c-error);
  border-radius: 8px;
  color: var(--c-error);
}
.error-summary h3 { font-size: 1.05rem; margin-bottom: .25rem; }
.error-summary ul { margin: 0; padding-inline-start: 1.25rem; }
.error-summary a { color: var(--c-error); }

.form-status { margin: 1rem 0 0; font-weight: 700; }
.form-status.is-success { color: var(--c-success); }
.form-status.is-error { color: var(--c-error); }

/* Footer */
.site-footer {
  background: #0f172a;
  color: #e2e8f0;
  padding-block: 2rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer-inner p { margin: 0; }
.footer-links { display: flex; gap: 1.5rem; list-style: none; margin: 0; padding: 0; }
.site-footer a { color: #bfdbfe; }
.site-footer a:hover { color: #fff; }
.site-footer :focus-visible { outline-color: #fbbf24; }

/* Accessibility statement page */
.page { padding-block: clamp(2.5rem, 6vw, 4rem); }
.page h2 { margin-top: 2rem; font-size: 1.5rem; }
.page ul { padding-inline-start: 1.5rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

@media (forced-colors: active) {
  .btn, .card, .steps li, .faq details, .contact-form { border: 1px solid CanvasText; }
  .check-list li::before { border-color: CanvasText; }
}