/* ================================================================
   BiiSensing — Main Stylesheet
   Child theme of GeneratePress
================================================================ */

/* === CSS CUSTOM PROPERTIES === */
:root {
  --navy:          #0a1628;
  --navy-light:    #112038;
  --navy-mid:      #0d1e34;
  --cyan:          #00b4d8;
  --cyan-bright:   #00e5ff;
  --purple:        #7c3aed;
  --white:         #ffffff;
  --gray-100:      #eef2f7;
  --gray-200:      #c5d0de;
  --gray-500:      #8898aa;
  --gray-900:      #111827;
  --gradient-fiber: linear-gradient(135deg, #00b4d8 0%, #00e5ff 50%, #7c3aed 100%);
  --fh1:  clamp(2.2rem, 1.6rem + 3vw, 4rem);
  --fh2:  clamp(1.6rem, 1.2rem + 2vw, 2.75rem);
  --fh3:  clamp(1.1rem, 1rem  + .5vw, 1.4rem);
  --r:    10px;
  --rlg:  18px;
  --trans: all .28s cubic-bezier(.4,0,.2,1);
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--navy);
  color: #d8e4f0;
  font-family: 'Poppins', system-ui, sans-serif;
  font-size: clamp(.9375rem, .9rem + .2vw, 1rem);
  font-weight: 400;
  line-height: 1.65;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; font-family: inherit; }

/* === SKIP LINK === */
.skip-link {
  position: absolute; top: -100%; left: 1rem; z-index: 9999;
  background: var(--cyan); color: var(--navy);
  padding: .6rem 1.2rem; border-radius: var(--r);
  font-weight: 600; transition: top .2s;
}
.skip-link:focus { top: 1rem; }

/* === LAYOUT UTILITIES === */
.container {
  width: 100%; max-width: 1180px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2.5rem);
}
.section { padding-block: clamp(4rem, 8vw, 6.5rem); }
.sec-label {
  font-size: .7rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--cyan); margin-bottom: .6rem;
}
.sec-title {
  font-size: var(--fh2); font-weight: 700;
  line-height: 1.15; letter-spacing: -.02em; color: var(--white);
}
.sec-title em {
  font-style: normal;
  background: var(--gradient-fiber);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.sec-desc { color: var(--gray-200); max-width: 560px; margin-top: .9rem; line-height: 1.7; font-size: .9375rem; }

/* === REVEAL ANIMATION === */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .65s ease, transform .65s ease; }
.reveal.in { opacity: 1; transform: none; }

/* === BUTTONS === */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .8rem 1.75rem; border-radius: var(--r);
  font-weight: 600; font-size: .9375rem;
  transition: var(--trans); border: none;
  min-height: 48px; letter-spacing: .01em;
}
.btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.btn-primary {
  background: var(--gradient-fiber); color: var(--white);
  box-shadow: 0 4px 20px rgba(0,180,216,.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,180,216,.45); }
.btn-outline { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,.28); }
.btn-outline:hover { background: rgba(255,255,255,.07); border-color: var(--cyan); transform: translateY(-2px); }
.btn-sm { padding: .6rem 1.25rem; font-size: .875rem; min-height: 42px; }

/* === NAV === */
nav.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  padding: 1.25rem 2rem;
  display: flex; align-items: center; justify-content: space-between;
  transition: var(--trans);
}
nav.site-nav.solid {
  background: rgba(10,22,40,.96); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0,180,216,.12); padding: .9rem 2rem;
}
.nav-logo { font-size: 1.4rem; font-weight: 700; letter-spacing: -.01em; color: var(--white); }
.nav-logo span { color: var(--cyan); }
.nav-links { display: flex; align-items: center; gap: 1.75rem; list-style: none; }
.nav-links a { font-size: .875rem; font-weight: 500; color: rgba(255,255,255,.72); transition: color .2s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--white); }
.nav-cta {
  padding: .55rem 1.2rem; background: var(--cyan); color: var(--navy);
  border-radius: var(--r); font-size: .875rem; font-weight: 600;
  min-height: 40px; display: inline-flex; align-items: center; transition: var(--trans);
}
.nav-cta:hover { background: var(--cyan-bright); transform: translateY(-1px); }
.nav-burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; padding: 8px;
  min-width: 48px; min-height: 48px;
  justify-content: center; align-items: center;
}
.nav-burger span { display: block; width: 22px; height: 2px; background: var(--white); transition: var(--trans); transform-origin: center; }
.nav-burger.open span:first-child  { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-burger.open span:last-child   { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none; position: fixed; inset: 0;
  background: rgba(8,18,34,.98); backdrop-filter: blur(20px);
  z-index: 199; flex-direction: column; justify-content: center; align-items: center; gap: 2rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-size: clamp(1.4rem,4vw,2rem); font-weight: 600; color: var(--white); transition: color .2s; }
.mobile-menu a:hover { color: var(--cyan); }
@media (max-width: 800px) { .nav-links, .nav-cta { display: none; } .nav-burger { display: flex; } }

/* === HERO === */
#hero {
  position: relative; height: 100svh; min-height: 580px;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center; overflow: hidden;
}
#fiber-canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-vignette {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 55%, rgba(10,22,40,0) 25%, rgba(10,22,40,.72) 70%, rgba(10,22,40,.95) 100%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; padding: 0 1.25rem; max-width: 860px; }
.hero-eyebrow {
  display: inline-block; font-size: .7rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--cyan-bright); border: 1px solid rgba(0,229,255,.28);
  border-radius: 100px; padding: .3rem .95rem; margin-bottom: 1.25rem;
  opacity: 0; transform: translateY(14px);
}
.hero-content h1 {
  font-size: var(--fh1); font-weight: 800; line-height: 1.08;
  letter-spacing: -.03em; color: var(--white); margin-bottom: .6rem;
  opacity: 0; transform: translateY(20px);
}
.hero-content h1 span {
  background: var(--gradient-fiber);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-tagline {
  font-size: clamp(1.1rem, 1rem + .6vw, 1.35rem); font-weight: 600;
  letter-spacing: .08em; color: var(--cyan); margin-bottom: .75rem;
  opacity: 0; transform: translateY(20px);
}
.hero-sub {
  font-size: clamp(.9rem, .85rem + .3vw, 1.05rem); color: var(--gray-200);
  margin-bottom: 2.25rem; font-weight: 300; letter-spacing: .01em;
  opacity: 0; transform: translateY(20px);
}
.hero-ctas { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; opacity: 0; transform: translateY(20px); }
.hero-scroll {
  position: absolute; bottom: 1.75rem; left: 50%; transform: translateX(-50%);
  z-index: 2; display: flex; flex-direction: column; align-items: center; gap: .4rem;
  color: rgba(255,255,255,.35); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
}
.hero-scroll svg { animation: arrowBounce 2.2s ease-in-out infinite; }
@keyframes arrowBounce { 0%,100%{transform:translateY(0)} 55%{transform:translateY(5px)} }

/* === PAGE HERO (inner pages) === */
.page-hero {
  background: var(--navy-light);
  padding: 8rem 0 4rem;
  border-bottom: 1px solid rgba(0,180,216,.08);
}
.page-hero h1 { font-size: var(--fh1); font-weight: 800; line-height: 1.08; letter-spacing: -.03em; color: var(--white); margin-top: .5rem; }
.page-hero h1 em { font-style: normal; background: var(--gradient-fiber); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.page-hero-sub { color: var(--gray-200); font-size: 1.0625rem; margin-top: .85rem; max-width: 640px; line-height: 1.7; }
.breadcrumb { display: flex; gap: .5rem; list-style: none; font-size: .8125rem; color: var(--gray-500); margin-bottom: 1rem; flex-wrap: wrap; }
.breadcrumb li + li::before { content: '/'; margin-right: .5rem; }
.breadcrumb a { color: var(--cyan); }
.breadcrumb a:hover { text-decoration: underline; }

/* === STATS === */
.stats-bar { background: rgba(0,180,216,.04); border-top: 1px solid rgba(0,180,216,.1); border-bottom: 1px solid rgba(0,180,216,.1); }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.stat { padding: 1.35rem 1rem; text-align: center; border-right: 1px solid rgba(0,180,216,.1); }
.stat:last-child { border-right: none; }
.stat-val { font-size: clamp(1.1rem,.9rem + .8vw,1.5rem); font-weight: 700; color: var(--white); }
.stat-val span { background: var(--gradient-fiber); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-lbl { font-size: .76rem; color: var(--gray-500); margin-top: .2rem; letter-spacing: .03em; }
@media (max-width:600px) {
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(3), .stat:nth-child(4) { border-top: 1px solid rgba(0,180,216,.1); }
  .stat:nth-child(4) { border-right: none; }
}

/* === SOLUTIONS === */
#solutions { background: var(--navy-mid); }
.sol-header { text-align: center; margin-bottom: 3.25rem; }
.sol-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.sol-card {
  background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--rlg); overflow: hidden;
  display: flex; flex-direction: column; transition: var(--trans);
}
.sol-card:hover { transform: translateY(-5px); box-shadow: 0 12px 40px rgba(0,0,0,.4), 0 0 0 1px rgba(0,180,216,.22); }
.sol-card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; filter: brightness(.85) saturate(1.1); }
.sol-card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; gap: .75rem; }
.sol-card-title { font-size: 1rem; font-weight: 600; color: var(--white); line-height: 1.3; }
.sol-card-desc { font-size: .875rem; color: var(--gray-200); line-height: 1.65; flex: 1; }
.sol-card-link { font-size: .8125rem; font-weight: 600; color: var(--cyan); display: inline-flex; align-items: center; gap: .3rem; transition: gap .2s; }
.sol-card-link:hover { gap: .55rem; }
@media (max-width:1000px) { .sol-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width:580px)  { .sol-grid { grid-template-columns: 1fr; } }

/* === PRODUCTS === */
#products { background: var(--navy-light); }
.prod-header { text-align: center; margin-bottom: 2.5rem; }
.prod-tabs { display: flex; justify-content: center; gap: .5rem; margin-bottom: 3rem; }
.tab-btn {
  padding: .7rem 2rem; border-radius: var(--r);
  border: 1.5px solid rgba(0,180,216,.22);
  background: transparent; color: var(--gray-200);
  font-family: inherit; font-weight: 600; font-size: .9375rem;
  transition: var(--trans); min-height: 46px;
}
.tab-btn.on { background: var(--gradient-fiber); color: var(--white); border-color: transparent; box-shadow: 0 4px 18px rgba(0,180,216,.28); }
.tab-btn:hover:not(.on) { background: rgba(0,180,216,.08); color: var(--white); }
.tab-btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.tab-panel { display: none; }
.tab-panel.on { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; align-items: start; }
.prod-badge { display: inline-block; font-size: .65rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--cyan); border: 1px solid rgba(0,180,216,.3); border-radius: 100px; padding: .28rem .85rem; margin-bottom: .9rem; }
.prod-name { font-size: var(--fh3); font-weight: 700; color: var(--white); margin-bottom: .3rem; }
.prod-tag { color: var(--gray-200); font-style: italic; font-weight: 300; font-size: .9375rem; margin-bottom: 1.75rem; }
.specs-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: .85rem; margin-bottom: 1.75rem; }
.spec-box { background: rgba(0,180,216,.05); border: 1px solid rgba(0,180,216,.12); border-radius: var(--r); padding: 1.1rem; }
.spec-val { font-size: 1.25rem; font-weight: 700; color: var(--white); line-height: 1.2; }
.spec-val span { background: var(--gradient-fiber); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.spec-lbl { font-size: .75rem; color: var(--gray-500); margin-top: .25rem; }
.bar-list { display: flex; flex-direction: column; gap: .9rem; margin-bottom: 1.75rem; }
.bar { display: flex; flex-direction: column; gap: .35rem; }
.bar-head { display: flex; justify-content: space-between; font-size: .8125rem; color: var(--gray-200); }
.bar-track { height: 3px; background: rgba(255,255,255,.08); border-radius: 100px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 100px; background: var(--gradient-fiber); width: 0; transition: width 1.1s cubic-bezier(.4,0,.2,1); }
.bar-fill.go { width: var(--w); }
.feat-list { list-style: none; display: flex; flex-direction: column; gap: .55rem; margin-bottom: 1.75rem; }
.feat-list li { display: flex; align-items: flex-start; gap: .65rem; color: var(--gray-200); font-size: .9rem; }
.feat-list li::before {
  content: ''; min-width: 15px; width: 15px; height: 15px; margin-top: .2rem;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300b4d8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/contain no-repeat;
}
.prod-ctas { display: flex; gap: .85rem; flex-wrap: wrap; }
.prod-img { width: 100%; object-fit: cover; border-radius: var(--rlg); aspect-ratio: 4/3; }
@media (max-width:760px) { .tab-panel.on { grid-template-columns: 1fr; gap: 2rem; } .prod-img { aspect-ratio: 16/9; } }
@media (max-width:460px) { .specs-grid { grid-template-columns: 1fr; } }

/* === HOW WE WORK === */
#how { background: var(--navy); }
.how-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.5rem; margin-top: 3rem; }
.how-card { padding: 1.75rem 1.5rem; border-top: 2px solid rgba(0,180,216,.18); position: relative; transition: var(--trans); }
.how-card::after { content: ''; position: absolute; top: -2px; left: 0; width: 0; height: 2px; background: var(--gradient-fiber); transition: width .45s ease; }
.how-card:hover::after { width: 100%; }
.how-num { font-size: 2.75rem; font-weight: 800; color: rgba(0,180,216,.1); line-height: 1; margin-bottom: 1rem; transition: color .3s; }
.how-card:hover .how-num { color: rgba(0,180,216,.22); }
.how-title { font-size: 1rem; font-weight: 600; color: var(--white); margin-bottom: .5rem; }
.how-desc { font-size: .875rem; color: var(--gray-500); line-height: 1.65; }
@media (max-width:900px) { .how-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width:480px) { .how-grid { grid-template-columns: 1fr; } }

/* === ABOUT === */
.about-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-text p { color: var(--gray-200); line-height: 1.75; font-size: .9375rem; margin-bottom: 1rem; }
.about-text p:last-of-type { margin-bottom: 1.75rem; }
.about-kpis { display: grid; grid-template-columns: repeat(2,1fr); gap: 1rem; }
.kpi { background: rgba(0,180,216,.05); border: 1px solid rgba(0,180,216,.12); border-radius: var(--r); padding: 1.25rem; text-align: center; }
.kpi-val { font-size: 1.75rem; font-weight: 700; background: var(--gradient-fiber); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.kpi-lbl { font-size: .775rem; color: var(--gray-500); margin-top: .2rem; }
@media (max-width:760px) { .about-inner { grid-template-columns: 1fr; gap: 2.5rem; } }

/* === CONTACT === */
#contact { background: var(--navy-mid); }
.contact-top { text-align: center; margin-bottom: 3.5rem; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 4rem; align-items: start; }
.globe-wrap { position: relative; display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }
#globe-canvas { width: 100%; max-width: 420px; aspect-ratio: 1; display: block; }
.globe-info { display: flex; flex-direction: column; gap: 1rem; width: 100%; max-width: 420px; }
.globe-row { display: flex; align-items: flex-start; gap: .85rem; font-size: .875rem; }
.globe-row-icon { flex-shrink: 0; width: 18px; height: 18px; color: var(--cyan); margin-top: 2px; }
.globe-row-text { color: var(--gray-200); line-height: 1.5; }
.globe-row-text strong { color: var(--white); display: block; font-weight: 600; font-size: .875rem; }
.form { display: flex; flex-direction: column; gap: 1.1rem; }
.frow { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.fg { display: flex; flex-direction: column; gap: .4rem; }
.fg label { font-size: .8125rem; font-weight: 500; color: var(--gray-200); }
.fg label .req { color: var(--cyan); }
.fc {
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r); padding: .8rem .95rem;
  color: var(--white); font-family: inherit; font-size: .9375rem;
  transition: border-color .2s, box-shadow .2s; min-height: 46px; width: 100%;
}
.fc::placeholder { color: rgba(255,255,255,.22); }
.fc:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(0,180,216,.14); }
.fc.err { border-color: #f87171; }
select.fc {
  appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' stroke='%2300b4d8' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .85rem center; background-size: 15px;
  background-color: rgba(255,255,255,.04); padding-right: 2.25rem;
}
select.fc option { background: var(--navy-mid); color: var(--white); }
textarea.fc { resize: vertical; min-height: 120px; }
.ferr { font-size: .775rem; color: #f87171; display: none; }
.ferr.show { display: block; }
.fcheck { display: flex; align-items: flex-start; gap: .65rem; }
.fcheck input[type=checkbox] { width: 17px; height: 17px; min-width: 17px; accent-color: var(--cyan); margin-top: 2px; }
.fcheck label { font-size: .8125rem; color: var(--gray-200); line-height: 1.5; }
.fcheck a { color: var(--cyan); }
.fsub {
  padding: .9rem 2rem; font-size: .9375rem; font-weight: 600;
  border: none; border-radius: var(--r);
  background: var(--gradient-fiber); color: var(--white);
  min-height: 50px; width: 100%; transition: var(--trans);
}
.fsub:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,180,216,.35); }
.fsub:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.fsuccess { display: none; padding: 1.35rem; background: rgba(16,185,129,.09); border: 1px solid rgba(16,185,129,.28); border-radius: var(--r); color: #6ee7b7; text-align: center; line-height: 1.6; font-size: .9375rem; }
@media (max-width:900px) { .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; } #globe-canvas { max-width: 280px; } }
@media (max-width:540px) { .frow { grid-template-columns: 1fr; } }

/* === COOKIE BANNER === */
.cookie-banner {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(13,30,52,.97); border-top: 1px solid rgba(0,180,216,.2);
  backdrop-filter: blur(12px); padding: 1.25rem;
}
.cookie-banner[hidden] { display: none; }
.cookie-inner { max-width: 1180px; margin-inline: auto; display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.cookie-inner p { font-size: .875rem; color: var(--gray-200); flex: 1; min-width: 240px; }
.cookie-inner a { color: var(--cyan); }
.cookie-actions { display: flex; gap: .75rem; flex-wrap: wrap; align-items: center; }
.cookie-link { font-size: .8125rem; color: var(--gray-500); text-decoration: underline; }

/* === FOOTER === */
footer { background: var(--navy); border-top: 1px solid rgba(255,255,255,.05); padding: 3.5rem 0 1.75rem; }
.foot-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255,255,255,.05); }
.foot-logo { font-size: 1.3rem; font-weight: 700; color: var(--white); margin-bottom: .65rem; }
.foot-logo span { color: var(--cyan); }
.foot-tag { font-size: .8125rem; color: var(--gray-500); line-height: 1.6; max-width: 220px; margin-bottom: 1.25rem; }
.foot-social { display: flex; gap: .6rem; }
.foot-soc-link { width: 34px; height: 34px; border: 1px solid rgba(255,255,255,.1); border-radius: 7px; display: flex; align-items: center; justify-content: center; color: var(--gray-500); transition: var(--trans); }
.foot-soc-link:hover { border-color: var(--cyan); color: var(--cyan); transform: translateY(-2px); }
.foot-soc-link:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.foot-col-title { font-size: .72rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--gray-500); margin-bottom: 1rem; }
.foot-links { list-style: none; display: flex; flex-direction: column; gap: .55rem; }
.foot-links a { font-size: .8375rem; color: rgba(255,255,255,.48); transition: color .2s; }
.foot-links a:hover { color: var(--cyan); }
.foot-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 1.75rem; flex-wrap: wrap; gap: .75rem; }
.foot-copy { font-size: .78rem; color: var(--gray-500); }
.foot-legal { display: flex; gap: 1.25rem; }
.foot-legal a { font-size: .78rem; color: var(--gray-500); transition: color .2s; }
.foot-legal a:hover { color: var(--white); }
@media (max-width:860px) { .foot-top { grid-template-columns: 1fr 1fr; gap: 2rem; } .foot-brand { grid-column: 1/-1; } }
@media (max-width:480px) { .foot-top { grid-template-columns: 1fr; } .foot-brand { grid-column: auto; } .foot-bottom { flex-direction: column; align-items: flex-start; } }

/* === ACCESSIBILITY === */
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
  .bar-fill { transition: none !important; }
}

/* ================================================================
   LIGHT SECTION THEME
================================================================ */
.section-light {
  background: #eef4ff;
  color: #0d1e34;
}
.section-light .sec-title        { color: #0d1e34; }
.section-light .sec-label        { color: #008fb0; }
.section-light .sec-desc         { color: #3d5a78; }

/* Stats bar */
.stats-bar.section-light          { border-top: none; border-color: rgba(0,180,216,.1); }
.section-light .stat-val span     { color: #0d1e34; }
.section-light .stat-lbl          { color: #3d5a78; }
.section-light .stat              { border-right-color: rgba(0,180,216,.1); }

/* Products section */
.section-light .prod-header p     { color: #3d5a78; }
.section-light .tab-btn           { color: #3d5a78; border-bottom-color: rgba(0,180,216,.2); }
.section-light .tab-btn.on        { color: #0d1e34; border-bottom-color: #0d1e34; }
.section-light .prod-badge        { background: rgba(0,180,216,.1); color: #007a9e; border-color: rgba(0,180,216,.2); }
.section-light .prod-name         { color: #0d1e34; }
.section-light .prod-tag          { color: #3d5a78; }
.section-light .spec-box          { background: #fff; border-color: rgba(0,180,216,.15); box-shadow: 0 2px 14px rgba(10,22,40,.06); }
.section-light .spec-val span     { color: #0d1e34; }
.section-light .spec-lbl          { color: #3d5a78; }
.section-light .bar-head span     { color: #3d5a78; }
.section-light .bar-head span:last-child { color: #0d1e34; font-weight: 600; }
.section-light .bar-track         { background: rgba(10,22,40,.08); }
.section-light .feat-list li      { color: #3d5a78; }
.section-light .feat-list li::before { color: var(--cyan); }
.section-light .btn-outline       { color: #0d1e34; border-color: rgba(10,22,40,.22); }
.section-light .btn-outline:hover { background: rgba(10,22,40,.04); border-color: var(--cyan); color: #0d1e34; }

/* About / KPI on light */
.section-light .about-text p      { color: #3d5a78; }
.section-light .kpi               { background: #fff; border-color: rgba(0,180,216,.15); box-shadow: 0 2px 14px rgba(10,22,40,.06); }
.section-light .kpi-lbl           { color: #3d5a78; }

/* How We Work cards on light (if ever used) */
.section-light .how-card          { background: #fff; border-top-color: rgba(0,180,216,.2); box-shadow: 0 2px 14px rgba(10,22,40,.06); }
.section-light .how-num           { color: rgba(0,180,216,.18); }
.section-light .how-card:hover .how-num { color: rgba(0,180,216,.38); }
.section-light .how-title         { color: #0d1e34; }
.section-light .how-desc          { color: #3d5a78; }

/* Sol cards on light */
.section-light .sol-card          { background: #fff; box-shadow: 0 4px 20px rgba(10,22,40,.08); border: 1px solid rgba(0,180,216,.1); }
.section-light .sol-card-title    { color: #0d1e34; }
.section-light .sol-card-desc     { color: #3d5a78; }

/* ================================================================
   BORDER BEAM — glowing fiber-optic pulse along section top edge
   Uses ::after so it can coexist with wave (::before) on same element
================================================================ */
.border-beam {
  position: relative;
  overflow: hidden;
}
.border-beam::after {
  content: '';
  position: absolute;
  top: 0;
  left: -45%;
  width: 45%;
  height: 2px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(0,180,216,.4) 25%,
    #00e5ff 50%,
    rgba(0,180,216,.4) 75%,
    transparent 100%
  );
  filter: blur(.8px);
  box-shadow: 0 0 8px rgba(0,229,255,.65), 0 0 18px rgba(0,180,216,.28);
  animation: beamSweep var(--beam-dur, 6s) ease-in-out infinite;
  animation-delay: var(--beam-delay, 0s);
  z-index: 2;
  pointer-events: none;
}

/* ================================================================
   WAVE DIVIDERS — scrolling SVG wave between sections
   Uses ::before so beam (::after) can coexist on same element
================================================================ */
.wave-dark {
  background: var(--navy-mid);   /* must match the SVG fill color below */
  position: relative;
  z-index: 1;
  margin-top: -58px;
  padding-top: calc(clamp(4rem, 8vw, 6.5rem) + 58px);
}
.wave-light {
  position: relative;
  z-index: 1;
  margin-top: -58px;
  padding-top: calc(clamp(4rem, 8vw, 6.5rem) + 58px);
}
.wave-dark::before,
.wave-light::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 62px;
  background-repeat: repeat-x;
  background-size: 800px 62px;
  pointer-events: none;
  z-index: 1;
}
/* Navy-mid wave covering preceding light section */
.wave-dark::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 800 62'%3E%3Cpath d='M0,32 C133,2 267,62 400,32 C533,2 667,62 800,32 L800,62 L0,62 Z' fill='%230d1e34'/%3E%3C/svg%3E");
  animation: waveScroll 14s linear infinite;
}
/* #eef4ff wave covering preceding dark section */
.wave-light::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 800 62'%3E%3Cpath d='M0,32 C133,2 267,62 400,32 C533,2 667,62 800,32 L800,62 L0,62 Z' fill='%23eef4ff'/%3E%3C/svg%3E");
  animation: waveScroll 16s linear infinite reverse;
}
@media (prefers-reduced-motion: reduce) {
  .border-beam::after { animation: none !important; opacity: 0 !important; }
  .wave-dark::before, .wave-light::before { animation: none !important; }
}