/* ZNT Electronics */

:root {
  --green: #145E4D;
  --green-dark: #0E4639;
  --green-tint: #EEF4F1;
  --copper: #B7612D;
  --ink: #15211C;
  --text: #36433D;
  --muted: #5F6C66;
  --line: #DFE5E1;
  --bg: #FFFFFF;
  --bg-soft: #F7F8F6;

  --font-head: "Lexend", system-ui, sans-serif;
  --font-body: "Figtree", "Segoe UI", system-ui, sans-serif;

  --wrap: 1120px;
  --gutter: clamp(20px, 5vw, 40px);
  --section: clamp(56px, 8vw, 96px);
  --radius: 6px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 500;
  color: var(--ink);
  line-height: 1.2;
  margin: 0 0 .5em;
  letter-spacing: -.01em;
}
h1 { font-size: clamp(32px, 4.4vw, 46px); }
h2 { font-size: clamp(25px, 3vw, 32px); }
h3 { font-size: 19px; }

p { margin: 0 0 1em; }
a { color: var(--green); }
a:hover { color: var(--green-dark); }
img { max-width: 100%; height: auto; display: block; }
ul { padding-left: 1.2em; }
li { margin-bottom: .35em; }

:focus-visible { outline: 2px solid var(--copper); outline-offset: 3px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--section) 0; }
.section + .section { border-top: 1px solid var(--line); }
.section--soft { background: var(--bg-soft); border-top: 0 !important; }
.narrow { max-width: 720px; }
.lead { font-size: 19px; color: var(--muted); max-width: 640px; }
.small { font-size: 15px; color: var(--muted); }

.skip-link { position: absolute; left: 12px; top: -48px; background: var(--ink); color: #fff; padding: 8px 14px; z-index: 100; }
.skip-link:focus { top: 12px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid var(--green);
  border-radius: var(--radius);
  background: var(--green);
  color: #fff;
  font: 600 16px var(--font-body);
  text-decoration: none;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.btn:hover { background: var(--green-dark); border-color: var(--green-dark); color: #fff; }
.btn--outline { background: #fff; color: var(--green); }
.btn--outline:hover { background: var(--green-tint); color: var(--green-dark); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.text-link { font-weight: 600; text-decoration: none; }
.text-link::after { content: " \2192"; }
.text-link:hover { text-decoration: underline; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: #fff; position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; gap: 32px; height: 72px; }

.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.logo svg { width: 26px; height: auto; }
.logo span { font: 500 19px/1 var(--font-head); }

.main-nav { margin-left: auto; }
.main-nav ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 28px; }
.main-nav li { margin: 0; }
.main-nav a { color: var(--text); text-decoration: none; font-weight: 500; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--green); }
.main-nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 6px; }

.has-sub { position: relative; display: flex; align-items: center; }
.sub-toggle { background: none; border: 0; padding: 6px; margin-left: 2px; cursor: pointer; color: var(--text); }
.sub-toggle svg { width: 12px; height: 12px; transition: transform .15s; }
.sub-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
.main-nav .submenu {
  display: none;
  position: absolute;
  top: calc(100% + 14px);
  left: -18px;
  width: 250px;
  padding: 8px 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(21, 33, 28, .08);
  flex-direction: column;
  align-items: stretch;
  gap: 0;
}
.submenu::before { content: ""; position: absolute; left: 0; right: 0; top: -15px; height: 15px; }
.submenu a { display: block; padding: 8px 18px; font-weight: 400; }
.submenu a:hover { background: var(--bg-soft); }
.submenu .sub-all { border-top: 1px solid var(--line); margin-top: 6px; padding-top: 6px; }
.submenu .sub-all a { font-weight: 600; }
.has-sub.open .submenu { display: flex; }

.header-cta { display: flex; align-items: center; gap: 18px; }
.header-phone { font-weight: 600; text-decoration: none; color: var(--ink); white-space: nowrap; }
.header-cta .btn { min-height: 42px; padding: 0 18px; font-size: 15px; }

.menu-toggle { display: none; }

@media (hover: hover) and (min-width: 961px) {
  .has-sub:hover .submenu { display: flex; }
}

@media (max-width: 960px) {
  .header-inner { gap: 12px; height: 64px; }
  .header-phone, .header-cta .btn { display: none; }
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    min-height: 44px;
    padding: 0 14px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    font: 600 15px var(--font-body);
    color: var(--ink);
    cursor: pointer;
  }
  .main-nav {
    display: none;
    position: absolute;
    left: 0; right: 0; top: 100%;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(21, 33, 28, .08);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }
  .main-nav.open { display: block; }
  .main-nav > ul { flex-direction: column; align-items: stretch; gap: 0; padding: 8px var(--gutter) 20px; }
  .main-nav > ul > li { border-bottom: 1px solid var(--line); }
  .main-nav > ul > li > a { display: block; padding: 14px 0; font-size: 18px; }
  .has-sub { flex-wrap: wrap; }
  .has-sub > a { flex: 1; }
  .sub-toggle { padding: 14px; margin-right: -14px; }
  .sub-toggle svg { width: 14px; height: 14px; }
  .main-nav .submenu { position: static; width: 100%; box-shadow: none; border: 0; border-radius: 0; padding: 0 0 12px 12px; }
  .submenu::before { display: none; }
  .submenu a { padding: 10px 0; }
  .submenu a:hover { background: none; }
  .main-nav .mobile-call { border-bottom: 0; padding-top: 18px; }
  .main-nav .mobile-call .btn { width: 100%; color: #fff; font-size: 16px; padding: 0 22px; }
}
@media (min-width: 961px) { .mobile-call { display: none; } }

/* Hero */
.hero { padding: clamp(48px, 7vw, 88px) 0; background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(32px, 6vw, 72px); align-items: center; }
.hero .area-line { margin-top: 22px; font-size: 15px; color: var(--muted); }

.brand-picker { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 28px; }
.brand-picker h2 { font-size: 18px; margin-bottom: 10px; }
.brand-picker ul { list-style: none; padding: 0; margin: 0; }
.brand-picker li { margin: 0; border-top: 1px solid var(--line); }
.brand-picker li:first-child { border-top: 0; }
.brand-picker li a { display: flex; justify-content: space-between; padding: 13px 0; color: var(--ink); text-decoration: none; font-weight: 500; }
.brand-picker li a::after { content: "\2192"; color: var(--green); }
.brand-picker li a:hover { color: var(--green); }
.brand-picker p { margin: 14px 0 0; font-size: 15px; color: var(--muted); }

/* Page header for inner pages */
.page-head { padding: clamp(40px, 6vw, 72px) 0 clamp(28px, 4vw, 44px); background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.breadcrumb { font-size: 14px; color: var(--muted); margin-bottom: 14px; }
.breadcrumb a { color: var(--muted); }

/* Lists of services */
.service-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 48px; list-style: none; padding: 0; margin: 28px 0 0; }
.service-list li { margin: 0; padding: 20px 0; border-top: 1px solid var(--line); }
.service-list h3 { margin-bottom: 4px; font-size: 18px; }
.service-list h3 a { color: var(--ink); text-decoration: none; }
.service-list h3 a:hover { color: var(--green); text-decoration: underline; }
.service-list p { margin: 0; color: var(--muted); font-size: 16px; }
.service-list--more { margin-top: 0; }
.after-list { margin-top: 24px; }

.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }

/* Why ZNT */
.points { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; margin-top: 28px; }
.points div { border-top: 2px solid var(--green); padding-top: 16px; }
.points h3 { font-size: 17px; margin-bottom: 6px; }
.points p { font-size: 15.5px; color: var(--muted); margin: 0; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; list-style: none; padding: 0; margin: 28px 0 0; counter-reset: step; }
.steps li { margin: 0; counter-increment: step; }
.steps li::before { content: counter(step); display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 14px; border: 1px solid var(--green); border-radius: 50%; color: var(--green); font: 500 15px var(--font-head); }
.steps h3 { font-size: 17px; margin-bottom: 6px; }
.steps p { font-size: 15.5px; color: var(--muted); margin: 0; }
.steps--stacked { grid-template-columns: 1fr !important; gap: 18px; margin-top: 8px; }
.steps--stacked li { display: grid; grid-template-columns: 34px 1fr; column-gap: 16px; }
.steps--stacked li::before { grid-row: span 2; margin: 0; }

/* Two column blocks */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 80px); }
.split--wide { grid-template-columns: 1.5fr 1fr; }
.area-list { list-style: none; padding: 0; margin: 0 0 1em; }
.area-list li { padding: 8px 0; border-bottom: 1px solid var(--line); margin: 0; }
.area-list li:first-child { border-top: 1px solid var(--line); }

/* Content pages */
.content h2 { margin-top: 1.6em; }
.content h2:first-child { margin-top: 0; }
.check-list { list-style: none; padding: 0; }
.check-list li { position: relative; padding-left: 28px; margin-bottom: 10px; }
.check-list li::before { content: ""; position: absolute; left: 2px; top: .55em; width: 12px; height: 7px; border-left: 2px solid var(--green); border-bottom: 2px solid var(--green); transform: rotate(-45deg); }

.aside-box { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; align-self: start; position: sticky; top: 96px; }
.aside-box h2 { font-size: 20px; }
.aside-box .btn { width: 100%; margin-top: 10px; }
.aside-box .aside-sub { margin-top: 28px; }
.aside-box .related { list-style: none; padding: 0; margin: 0; }
.aside-box .related li { margin: 0; padding: 8px 0; border-top: 1px solid var(--line); }

.notice { border-left: 3px solid var(--copper); background: var(--bg-soft); padding: 16px 20px; margin: 24px 0; }
.notice p:last-child { margin: 0; }

/* Call to action band */
.cta-band { background: var(--green); color: #E3EEE9; padding: clamp(48px, 7vw, 72px) 0; }
.cta-band h2 { color: #fff; }
.cta-band .btn { background: #fff; color: var(--green); border-color: #fff; }
.cta-band .btn:hover { background: var(--green-tint); }
.cta-band .btn--outline { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .55); }
.cta-band .btn--outline:hover { background: rgba(255, 255, 255, .1); color: #fff; }
.cta-band .actions { margin-top: 20px; }

/* Reviews */
.rating { display: flex; align-items: center; gap: 14px; margin: 8px 0 24px; }
.rating strong { font: 500 34px/1 var(--font-head); color: var(--ink); }
.stars { color: #E2A33B; letter-spacing: 2px; }
.reviews { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 48px; }
.review { border-top: 1px solid var(--line); padding: 24px 0; margin: 0; }
.review blockquote { margin: 8px 0 12px; }
.review figcaption { font-size: 15px; color: var(--muted); }
.review figcaption strong { color: var(--ink); }
.reviews-empty { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.reviews-empty .actions { margin-top: 16px; }
.reviews:empty { display: none; }

/* FAQ */
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 20px 32px 20px 0; font: 500 18px/1.4 var(--font-head); color: var(--ink); list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 18px; font-size: 22px; color: var(--green); }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { padding-bottom: 20px; margin: 0; max-width: 680px; }

/* Forms */
.form { display: grid; gap: 18px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field label { display: block; font-weight: 600; color: var(--ink); margin-bottom: 6px; font-size: 15.5px; }
.field .hint { font-weight: 400; color: var(--muted); }
.field input, .field textarea {
  width: 100%;
  font: 400 16px var(--font-body);
  color: var(--ink);
  background: #fff;
  border: 1px solid #C9D2CD;
  border-radius: var(--radius);
  padding: 12px 14px;
  min-height: 48px;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input[type="file"] { padding: 10px; background: var(--bg-soft); }
.field input:focus, .field textarea:focus { outline: 2px solid var(--green); outline-offset: 0; border-color: var(--green); }
.hp-field { position: absolute; left: -9999px; }
.form .btn { justify-self: start; min-width: 180px; }

.contact-methods { list-style: none; padding: 0; margin: 0 0 28px; }
.contact-methods li { margin: 0; padding: 16px 0; border-top: 1px solid var(--line); }
.contact-methods li:last-child { border-bottom: 1px solid var(--line); }
.contact-methods span { display: block; font-size: 14px; color: var(--muted); }
.contact-methods a, .contact-methods strong { font: 500 20px var(--font-head); color: var(--ink); text-decoration: none; }
.contact-methods a:hover { color: var(--green); }

/* About */
.owner-photo { margin: 0; }
.owner-photo img { border-radius: var(--radius); }
.owner-photo figcaption { font-size: 14px; color: var(--muted); margin-top: 8px; }

/* Footer */
.site-footer { background: var(--ink); color: #B9C7C0; padding: 56px 0 28px; font-size: 15.5px; }
.site-footer a { color: #E3EEE9; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
.footer-grid h2 { font-size: 15px; color: #fff; margin-bottom: 14px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.site-footer .logo { color: #fff; margin-bottom: 14px; }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .12); font-size: 14px; }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid, .split, .split--wide { grid-template-columns: 1fr; }
  .points, .steps { grid-template-columns: 1fr 1fr; }
  .aside-box { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  body { font-size: 16.5px; }
  .service-list, .reviews { grid-template-columns: 1fr; }
  .points, .steps { grid-template-columns: 1fr; gap: 24px; }
  .form .row { grid-template-columns: 1fr; }
  .actions .btn, .form .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
}