/* S1 Technologies — site styles */
:root {
  --ink: #0c2340;      /* navy: header, hero, footer */
  --ink-2: #133459;
  --blue: #045aaf;     /* logo blue: links */
  --cable: #f2c230;    /* patch-cable yellow: primary action only */
  --paper: #f3f5f8;
  --text: #18222f;
  --muted: #536173;
  --line: #d6dde6;
  --on-ink: #e8eef6;
  --on-ink-muted: #a9b8cb;
  --head: "Archivo", "Arial Narrow", system-ui, sans-serif;
  --body: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;
  --wrap: 1160px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: #fff; color: var(--text); font: 400 1.0625rem/1.6 var(--body); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-underline-offset: .18em; }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--cable); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--head); font-stretch: 85%; font-weight: 700; line-height: 1.12; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.25rem, 1.4rem + 3.6vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.125rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1em; max-width: 68ch; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: 24px; }
.wrap--narrow { max-width: 760px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--cable); color: var(--ink); padding: 8px 14px; z-index: 10; }
.skip:focus { left: 8px; }
.muted { color: var(--muted); font-size: .95rem; }

/* Buttons and links */
.btn { display: inline-block; font: 700 1.0625rem/1 var(--head); font-stretch: 90%; padding: 16px 26px; border-radius: 3px; text-decoration: none; border: 0; cursor: pointer; }
.btn--cable { background: var(--cable); color: var(--ink); }
.btn--cable:hover { background: #ffd34d; color: var(--ink); }
.link { font-weight: 600; }

/* Header */
.site-header { background: var(--ink); color: var(--on-ink); position: sticky; top: 0; z-index: 5; border-bottom: 1px solid rgba(255,255,255,.08); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 76px; }
.brand img { width: 230px; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav > ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
.site-nav a, .sub-toggle { color: var(--on-ink); text-decoration: none; font: 600 1rem/1 var(--body); padding: 12px 12px; display: block; background: none; border: 0; cursor: pointer; border-radius: 3px; }
.site-nav a:hover, .sub-toggle:hover { color: #fff; background: var(--ink-2); }
.site-nav a[aria-current="page"], .has-sub.is-current > .sub-toggle { box-shadow: inset 0 -3px 0 var(--cable); }
.sub-toggle::after { content: ""; display: inline-block; margin-left: 7px; border: 4px solid transparent; border-top-color: currentColor; transform: translateY(2px); }
.has-sub { position: relative; }
.sub { list-style: none; margin: 0; padding: 8px; position: absolute; top: 100%; left: 0; min-width: 250px; background: #fff; border-radius: 4px; box-shadow: 0 12px 32px rgba(12,35,64,.25); display: none; }
.has-sub:hover > .sub, .has-sub:focus-within > .sub, .sub-toggle[aria-expanded="true"] + .sub { display: block; }
.sub a { color: var(--text); padding: 10px 12px; }
.sub a:hover { background: var(--paper); color: var(--ink); }
.sub a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--blue); }
.nav-phone { font-family: var(--head) !important; font-stretch: 90%; font-weight: 700 !important; color: var(--cable) !important; white-space: nowrap; }
.nav-toggle { display: none; }

/* Homepage slider: full-width slides, one at a time */
.slider { position: relative; background: #fff; overflow: hidden; border-bottom: 1px solid var(--line); }
.slider__track { display: flex; transition: transform .8s cubic-bezier(.65,0,.35,1); }
.slide { flex: 0 0 100%; position: relative; height: clamp(440px, 46vw, 680px); }
.slide__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 70% 50%; }
.slide__inner { position: relative; height: 100%; display: flex; align-items: center; }
.slide__text { max-width: 520px; padding-bottom: 40px; }
.slide__title { font-family: var(--head); font-stretch: 85%; font-weight: 800; color: var(--ink); font-size: clamp(2.1rem, 1.2rem + 2.8vw, 3.6rem); line-height: 1.05; margin-bottom: .45em; }
.slide__text p { font-size: 1.2rem; color: var(--muted); max-width: 40ch; margin-bottom: 1.8rem; }
.slide__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; }
.slide__phone { color: var(--ink); text-decoration: none; font: 700 1.5rem/1.1 var(--head); font-stretch: 85%; }
.slide__phone span { display: block; font: 400 .9rem/1.3 var(--body); color: var(--muted); }
.slide__phone:hover { color: var(--blue); }
.slider__controls { position: absolute; left: 0; right: 0; bottom: 24px; display: flex; align-items: center; gap: 14px; pointer-events: none; }
.slider__controls > * { pointer-events: auto; }
.slider__arrow { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--line); background: #fff; color: var(--ink); cursor: pointer; }
.slider__arrow:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.slider__dots { display: flex; gap: 8px; }
.slider__dot { width: 34px; height: 6px; border-radius: 3px; border: 0; padding: 0; background: #c9d3df; cursor: pointer; }
.slider__dot[aria-current="true"] { background: var(--blue); }

/* Three pillars */
.pillars { background: var(--paper); border-bottom: 1px solid var(--line); }
.pillars__grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.pillar { display: block; padding: 40px 32px 36px; text-decoration: none; color: var(--text); border-left: 1px solid var(--line); }
.pillar:last-child { border-right: 1px solid var(--line); }
.pillar img { width: 56px; height: 56px; margin-bottom: 18px; }
.pillar h2 { font-size: 1.4rem; color: var(--ink); margin-bottom: .35em; }
.pillar p { color: var(--muted); margin: 0; }
.pillar:hover { background: #fff; }
.pillar:hover h2 { color: var(--blue); }

/* Image + text rows */
.split { padding: 80px 0; }
.split + .split { padding-top: 0; }
.split__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split__img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 3px; }
.split--flip .split__img { order: 2; }
.split__text p { color: var(--muted); font-size: 1.125rem; }
.split__text h2 { color: var(--ink); }

/* Solutions as a rack of units */
.rack { background: var(--ink); color: var(--on-ink); padding: 80px 0 88px; }
.rack__title { color: #fff; margin-bottom: 32px; }
.rack__units { list-style: none; margin: 0; padding: 0; border-left: 10px solid var(--ink-2); border-right: 10px solid var(--ink-2); }
.unit { position: relative; display: grid; grid-template-columns: 220px 1fr 40px; gap: 32px; align-items: center; padding: 20px 24px; background: #10294a; border-bottom: 2px solid var(--ink); }
.unit img { width: 220px; height: 120px; object-fit: cover; border-radius: 2px; }
.unit h3 { margin-bottom: .3em; }
.unit h3 a { color: #fff; text-decoration: none; }
.unit h3 a::after { content: ""; position: absolute; inset: 0; }
.unit p { color: var(--on-ink-muted); margin: 0; }
.unit__led { width: 10px; height: 10px; border-radius: 50%; background: #2fbf71; box-shadow: 0 0 0 3px rgba(47,191,113,.18); justify-self: end; }
.unit:hover { background: var(--ink-2); }
.unit:hover .unit__led { background: var(--cable); box-shadow: 0 0 0 3px rgba(242,194,48,.25), 0 0 12px rgba(242,194,48,.6); }
.unit:hover h3 a { text-decoration: underline; text-decoration-color: var(--cable); }

/* Inner page header */
.page-head { background: var(--ink); color: var(--on-ink); padding: 56px 0 60px; }
.page-head--tall { padding: 96px 0; }
.page-head h1 { color: #fff; font-size: clamp(2rem, 1.4rem + 2.6vw, 3.25rem); max-width: 20ch; }
.page-head__lead { font-size: 1.2rem; max-width: 56ch; margin: 0; }
.page-head a { color: var(--cable); }
.crumb { font-size: .95rem; color: var(--on-ink-muted); margin-bottom: 14px; }
.crumb a { color: var(--on-ink-muted); }

/* Feature columns */
.features { padding: 72px 0 8px; }
.features__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px 36px; }
.features__grid--3 { grid-template-columns: repeat(3, 1fr); }
.features__grid--2 { grid-template-columns: repeat(2, 1fr); gap: 40px 64px; }
.feature { border-top: 3px solid var(--ink); padding-top: 18px; }
.feature h2 { font-size: 1.3rem; color: var(--ink); }
.feature p { color: var(--muted); margin: 0 0 1em; }
.features + .split { padding-top: 72px; }
.ticks { list-style: none; margin: 0 0 1em; padding: 0; }
.ticks li { padding: 6px 0 6px 26px; position: relative; border-bottom: 1px solid var(--line); }
.ticks li::before { content: ""; position: absolute; left: 2px; top: 13px; width: 10px; height: 6px; border-left: 2px solid var(--blue); border-bottom: 2px solid var(--blue); transform: rotate(-45deg); }
.ticks--cols { columns: 2; column-gap: 32px; }
.ticks--cols li { break-inside: avoid; }

/* Quote band */
.quote-band { background: var(--paper); border-top: 1px solid var(--line); padding: 64px 0; }
.quote-band__inner { display: grid; grid-template-columns: 1fr auto; gap: 8px 48px; align-items: center; }
.quote-band h2 { color: var(--ink); margin: 0; }
.quote-band p { grid-column: 1; color: var(--muted); margin: 0; }
.quote-band__actions { grid-column: 2; grid-row: 1 / span 2; display: flex; align-items: center; gap: 24px; }
.quote-band__phone { font: 700 1.5rem/1 var(--head); font-stretch: 85%; color: var(--ink); text-decoration: none; white-space: nowrap; }
.quote-band__phone:hover { color: var(--blue); }

/* Contact */
.contact { padding: 72px 0 88px; }
.contact__grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 64px; align-items: start; }
.contact__details > div { border-top: 3px solid var(--ink); padding: 16px 0 24px; }
.contact__details h2 { font-size: 1.15rem; color: var(--ink); margin-bottom: .3em; }
.contact__details p { font-size: 1.15rem; margin: 0; }
.form { background: var(--paper); border: 1px solid var(--line); border-radius: 4px; padding: 32px; }
.form__row { margin-bottom: 18px; }
.form__row--2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form label { display: block; font-weight: 600; margin-bottom: 6px; }
.form .opt { font-weight: 400; color: var(--muted); }
.form input, .form textarea { width: 100%; font: inherit; color: var(--text); padding: 12px 14px; border: 1px solid #b7c2cf; border-radius: 3px; background: #fff; }
.form input:focus, .form textarea:focus { border-color: var(--blue); outline: 2px solid rgba(4,90,175,.25); outline-offset: 0; }
.hp { position: absolute; left: -9999px; }
.notice { padding: 14px 16px; border-radius: 3px; margin-bottom: 20px; max-width: none; }
.notice--ok { background: #e3f4ea; border-left: 4px solid #2a9a5c; }
.notice--err { background: #fbe9e7; border-left: 4px solid #c0392b; }

/* Prose */
.prose { padding: 64px 0 88px; }
.prose h2 { font-size: 1.4rem; color: var(--ink); margin-top: 1.6em; }
.prose h2:first-child { margin-top: 0; }

/* Footer */
.site-footer { background: var(--ink); color: var(--on-ink-muted); padding: 64px 0 0; font-size: .98rem; }
.site-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.site-footer img { width: 210px; margin-bottom: 16px; }
.site-footer__tag { max-width: 30ch; }
.site-footer h2 { font-size: 1.05rem; color: #fff; margin-bottom: .8em; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 6px; }
.site-footer a { color: var(--on-ink); text-decoration: none; }
.site-footer a:hover { color: var(--cable); text-decoration: underline; }
.site-footer address { font-style: normal; line-height: 1.8; }
.site-footer__base { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px; padding-bottom: 28px; font-size: .9rem; }
.site-footer__base a { margin-left: 18px; }

/* Responsive */
@media (max-width: 1080px) {
  .nav-toggle { display: block; background: none; border: 1px solid rgba(255,255,255,.3); color: #fff; font: 600 1rem/1 var(--body); padding: 10px 14px; border-radius: 3px; cursor: pointer; }
  .site-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--ink); flex-direction: column; align-items: stretch; gap: 0; padding: 8px 16px 20px; border-top: 1px solid rgba(255,255,255,.08); max-height: calc(100vh - 76px); overflow-y: auto; }
  .site-nav.is-open { display: flex; }
  .site-nav > ul { flex-direction: column; }
  .site-nav a, .sub-toggle { padding: 14px 8px; width: 100%; text-align: left; }
  .sub { position: static; box-shadow: none; background: var(--ink-2); min-width: 0; }
  .has-sub:hover > .sub, .has-sub:focus-within > .sub { display: none; }
  .sub-toggle[aria-expanded="true"] + .sub { display: block; }
  .sub a { color: var(--on-ink); }
  .sub a:hover { background: var(--ink); color: #fff; }
  .site-nav a[aria-current="page"], .has-sub.is-current > .sub-toggle { box-shadow: inset 3px 0 0 var(--cable); }
  .nav-phone { margin-top: 8px; }
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .slide { height: auto; }
  .slide__media img { position: static; height: 58vw; max-height: 380px; object-position: 60% 50%; }
  .slide__inner { display: block; height: auto; }
  .slide__text { padding: 28px 0 88px; }
  .slider__controls { bottom: 20px; }
  .pillars__grid { grid-template-columns: 1fr; }
  .pillar { border-left: 0; border-right: 0 !important; border-bottom: 1px solid var(--line); padding: 28px 0; }
  .split { padding: 56px 0; }
  .split__inner { grid-template-columns: 1fr; gap: 28px; }
  .split--flip .split__img { order: 0; }
  .unit { grid-template-columns: 1fr; gap: 16px; }
  .unit img { width: 100%; height: 160px; }
  .unit__led { position: absolute; top: 32px; right: 36px; }
  .features__grid--3, .features__grid--2 { grid-template-columns: 1fr; }
  .quote-band__inner { grid-template-columns: 1fr; }
  .quote-band__actions { grid-column: 1; grid-row: auto; flex-wrap: wrap; margin-top: 16px; }
  .contact__grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 560px) {
  .wrap { padding-inline: 16px; }
  .brand img { width: 180px; }
  .features__grid { grid-template-columns: 1fr; }
  .ticks--cols { columns: 1; }
  .form { padding: 20px; }
  .form__row--2 { grid-template-columns: 1fr; }
  .rack__units { border-width: 6px; }
  .site-footer__grid { grid-template-columns: 1fr; }
  .site-footer__base a { margin: 0 18px 0 0; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }