/* ===========================================================
   KASTURI NETWORKS — Frontend Theme
   Palette: navy #0d1b3e (primary) / blue #2563eb (accent) /
            teal #06b6d4 (signal) / amber #f59e0b (flags) /
            bg #f4f6fb / ink #101826
   Type: Space Grotesk (display) + Inter (body) + JetBrains Mono (data)
   =========================================================== */

:root {
  --kn-primary: #0F5E66;      /* deep teal — logo's outer ring */
  --kn-primary-2: #0C4A50;    /* darker teal — gradients/hover */
  --kn-accent: #1D4ED8;       /* blue — matches "Kasturi" signature wordmark */
  --kn-signal: #E8590C;       /* orange — matches logo's underline swoosh */
  --kn-coral: #C16F5F;        /* terracotta/coral — logo's bottom ring accent */
  --kn-amber: #f59e0b;
  --kn-bg: #f5f7f6;
  --kn-ink: #101826;
  --kn-muted: #667085;
  --kn-line: #e4e8f1;
  --kn-radius: 14px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

body {
  background-color: var(--kn-bg);
  font-family: var(--font-body);
  color: var(--kn-ink);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--kn-primary);
  letter-spacing: -0.01em;
}

a { text-decoration: none; }

.mono { font-family: var(--font-mono); }

/* ---------- Buttons ---------- */
.btn-primary-kn {
  background-color: var(--kn-accent);
  border-color: var(--kn-accent);
  color: #fff;
  font-weight: 600;
  padding: 0.7rem 1.6rem;
  transition: transform 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 8px 20px -8px rgba(37, 99, 235, 0.55);
}
.btn-primary-kn:hover {
  background-color: #1d4ed8;
  border-color: #1d4ed8;
  color: #fff;
  transform: translateY(-1px);
}
.btn-outline-kn {
  border: 1.5px solid var(--kn-line);
  color: var(--kn-primary);
  font-weight: 600;
  padding: 0.68rem 1.6rem;
  background: #fff;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}
.btn-outline-kn:hover {
  border-color: var(--kn-accent);
  color: var(--kn-accent);
  background: #fff;
}
.btn-enquire {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  font-weight: 600;
  border-radius: 999px;
  padding: 0.5rem 1.1rem;
  margin-left: 0.75rem;
}
.btn-enquire:hover { background: rgba(255,255,255,0.18); color: #fff; }

/* ---------- Topline ---------- */
.topline {
  background: var(--kn-primary);
  color: #b9c4de;
  font-size: 0.8rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.topline-inner { display: flex; gap: 1.75rem; padding: 0.45rem 0; flex-wrap: wrap; }
.topline-item i { margin-right: 0.35rem; color: var(--kn-signal); }

/* ---------- Navbar ---------- */
.site-navbar {
  background: var(--kn-primary);
  padding: 0.85rem 0;
}
.site-brand { display: flex; align-items: center; gap: 0.6rem; }
.brand-mark {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--kn-accent), var(--kn-signal));
  border-radius: 10px;
  color: #fff;
  font-size: 1.15rem;
}
.brand-logo {
  width: 46px; height: 46px;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  flex-shrink: 0;
}
.brand-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: #fff;
}
.brand-text em { color: var(--kn-signal); font-style: normal; }

.main-nav .nav-link {
  color: #c7d0e6;
  font-weight: 500;
  padding: 0.5rem 1rem;
}
.main-nav .nav-link:hover, .main-nav .nav-link.active { color: #fff; }
.main-nav .nav-item.dropdown .dropdown-menu {
  border: none;
  border-radius: 12px;
  padding: 0.5rem;
  margin-top: 0.5rem;
}
.main-nav .dropdown-item { border-radius: 8px; padding: 0.5rem 0.9rem; font-size: 0.92rem; }
.main-nav .dropdown-item:hover { background: var(--kn-bg); color: var(--kn-accent); }

.nav-search { position: relative; }
.nav-search .form-control {
  border-radius: 999px 0 0 999px;
  border: none;
  background: rgba(255,255,255,0.1);
  color: #fff;
  padding-left: 1rem;
  min-width: 180px;
}
.nav-search .form-control::placeholder { color: #93a0c2; }
.nav-search .form-control:focus { background: rgba(255,255,255,0.16); box-shadow: none; color: #fff; }
.nav-search .btn {
  border-radius: 0 999px 999px 0;
  background: var(--kn-accent);
  color: #fff;
  border: none;
  padding: 0.375rem 0.9rem;
}

/* ---------- Hero ---------- */
.hero { background: var(--kn-primary); color: #fff; padding: 4.5rem 0 5rem; overflow: hidden; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  color: var(--kn-signal); font-weight: 600; font-size: 0.85rem;
  text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 1.1rem;
}
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--kn-signal); box-shadow: 0 0 0 4px rgba(232,89,12,0.2); }
.hero-title {
  font-size: clamp(2.1rem, 4vw, 3.15rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.12;
  margin-bottom: 1.25rem;
}
.hero-title em { font-style: normal; color: var(--kn-signal); }
.hero-sub { color: #aab6d6; font-size: 1.05rem; max-width: 520px; margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.75rem; }
.hero-stats { display: flex; gap: 2.5rem; flex-wrap: wrap; }
.hero-stat { display: flex; flex-direction: column; }
.hero-stat strong { font-family: var(--font-display); font-size: 1.6rem; color: #fff; }
.hero-stat span { color: #8b98bd; font-size: 0.82rem; }

/* Network topology diagram */
.hero-diagram { position: relative; width: 100%; }
.topology-svg { width: 100%; height: auto; display: block; }
.topo-line { stroke: rgba(255,255,255,0.14); stroke-width: 2; }
.topo-pulse {
  stroke: var(--kn-signal);
  stroke-width: 2;
  stroke-dasharray: 3 14;
  animation: dashflow 2.4s linear infinite;
  opacity: 0.9;
}
.topo-pulse.d2 { animation-delay: -0.4s; }
.topo-pulse.d3 { animation-delay: -0.8s; }
.topo-pulse.d4 { animation-delay: -1.2s; }
.topo-pulse.d5 { animation-delay: -1.6s; }
.topo-pulse.d6 { animation-delay: -2.0s; }
@keyframes dashflow {
  to { stroke-dashoffset: -170; }
}
.topo-node {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--kn-primary-2);
  border: 1.5px solid rgba(255,255,255,0.18);
  display: flex; align-items: center; justify-content: center;
  color: #cfd8f0;
  font-size: 1.3rem;
  box-shadow: 0 6px 18px -6px rgba(0,0,0,0.5);
}
.topo-hub {
  background: linear-gradient(135deg, var(--kn-accent), var(--kn-signal));
  color: #fff;
  font-size: 1.7rem;
  box-shadow: 0 0 0 8px rgba(37,99,235,0.15), 0 10px 26px -6px rgba(37,99,235,0.6);
}

@media (prefers-reduced-motion: reduce) {
  .topo-pulse { animation: none; opacity: 0.5; }
}

/* ---------- Trust strip ---------- */
.trust-strip { background: #fff; border-bottom: 1px solid var(--kn-line); padding: 1.1rem 0; }
.trust-item { font-size: 0.88rem; font-weight: 600; color: var(--kn-primary); }
.trust-item i { color: var(--kn-accent); margin-right: 0.45rem; }

/* ---------- Sections ---------- */
.section { padding: 4rem 0; }
.section-alt { background: #fff; }
.section-heading { margin-bottom: 2.25rem; }
.section-eyebrow {
  display: block; color: var(--kn-accent); font-weight: 700;
  font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 0.5rem;
}
.section-heading h2 { font-size: 1.9rem; margin-bottom: 0.4rem; }
.section-heading p { color: var(--kn-muted); margin-bottom: 0; }
.link-arrow { color: var(--kn-accent); font-weight: 600; }
.link-arrow i { margin-left: 0.35rem; transition: transform 0.15s ease; }
.link-arrow:hover i { transform: translateX(3px); }

/* ---------- Category cards ---------- */
.category-card {
  display: flex; flex-direction: column; align-items: center; gap: 0.75rem;
  background: #fff; border: 1px solid var(--kn-line); border-radius: var(--kn-radius);
  padding: 1.5rem 1rem; text-align: center; height: 100%;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.category-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 30px -14px rgba(13,27,62,0.18);
  border-color: transparent;
}
.category-icon {
  width: 54px; height: 54px; border-radius: 50%;
  background: linear-gradient(135deg, #E7F5F4, #E3EEFC);
  color: var(--kn-accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
}
.category-name { font-weight: 600; color: var(--kn-primary); font-size: 0.92rem; }

/* ---------- Product cards ---------- */
.product-card {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--kn-line);
  border-radius: var(--kn-radius); overflow: hidden; height: 100%;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.product-card:hover { transform: translateY(-4px); box-shadow: 0 18px 32px -16px rgba(13,27,62,0.2); }
.product-card-link { display: block; color: inherit; flex: 1; }
.product-card-media {
  position: relative; aspect-ratio: 1 / 1; background: var(--kn-bg);
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.product-card-media img { width: 100%; height: 100%; object-fit: cover; }
.product-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #E7F5F4, #E3EEFC);
  color: #8FB3B0; font-size: 2.4rem;
}
.stock-flag {
  position: absolute; top: 10px; left: 10px;
  font-size: 0.7rem; font-weight: 700; padding: 0.25rem 0.6rem;
  border-radius: 999px; text-transform: uppercase; letter-spacing: 0.03em;
}
.stock-flag.out { background: #fee2e2; color: #b91c1c; }
.stock-flag.low { background: #fef3c7; color: #92400e; }

.brand-badge {
  position: absolute; top: 10px; right: 10px;
  background: rgba(13,27,62,0.9); color: #fff;
  font-size: 0.68rem; font-weight: 700; padding: 0.25rem 0.6rem;
  border-radius: 999px; text-transform: uppercase; letter-spacing: 0.03em;
}
.brand-badge.static { position: static; display: inline-block; }
.discount-badge {
  position: absolute; bottom: 10px; left: 10px;
  background: var(--kn-coral); color: #fff;
  font-size: 0.7rem; font-weight: 700; padding: 0.25rem 0.6rem; border-radius: 999px;
}
.discount-badge.static { position: static; display: inline-block; margin-left: 0.6rem; vertical-align: middle; }

.product-card-body { padding: 1rem 1.1rem 0.4rem; }
.product-eyebrow { display: block; font-size: 0.72rem; font-weight: 700; color: var(--kn-signal); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 0.3rem; }
.product-name {
  font-size: 0.98rem; font-weight: 600; color: var(--kn-ink);
  margin-bottom: 0.5rem; font-family: var(--font-body);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  min-height: 2.6em;
}

.spec-pills { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 0.6rem; }
.spec-pill {
  background: var(--kn-bg); color: var(--kn-primary);
  font-size: 0.68rem; font-weight: 600; padding: 0.22rem 0.55rem;
  border-radius: 999px; border: 1px solid var(--kn-line);
}

.price-block { display: flex; align-items: baseline; gap: 0.5rem; flex-wrap: wrap; }
.product-price { font-family: var(--font-display); font-weight: 700; color: var(--kn-primary); font-size: 1.15rem; }
.mrp-strike { color: var(--kn-muted); text-decoration: line-through; font-size: 0.85rem; }
.mrp-strike.lg { font-size: 1.1rem; }
.gst-note { font-size: 0.72rem; color: var(--kn-muted); margin-top: 0.15rem; }
.delivery-note { font-size: 0.78rem; color: #15803d; margin-top: 0.5rem; font-weight: 600; }
.delivery-note i { margin-right: 0.3rem; }

.product-card-actions { display: flex; gap: 0.5rem; padding: 0.9rem 1.1rem 1.1rem; }
.product-card-actions .btn { font-size: 0.8rem; padding: 0.45rem 0.6rem; }

/* ---------- Business model segment cards (B2B / B2C) ---------- */
.segment-card {
  background: #fff; border-radius: var(--kn-radius); padding: 2rem;
  height: 100%; border: 1px solid var(--kn-line); position: relative; overflow: hidden;
}
.segment-tag {
  display: inline-block; font-family: var(--font-display); font-weight: 700;
  font-size: 0.75rem; letter-spacing: 0.06em; padding: 0.3rem 0.75rem;
  border-radius: 999px; margin-bottom: 1rem;
}
.segment-b2b { border-top: 3px solid var(--kn-primary); }
.segment-b2b .segment-tag { background: #DCEEED; color: var(--kn-primary); }
.segment-b2c { border-top: 3px solid var(--kn-signal); }
.segment-b2c .segment-tag { background: #FCE4D6; color: #B34608; }

.segment-card h3 { font-size: 1.4rem; margin-bottom: 0.4rem; }
.segment-focus { color: var(--kn-muted); font-size: 0.92rem; margin-bottom: 1.25rem; }
.segment-list { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.segment-list li {
  display: flex; align-items: flex-start; gap: 0.55rem;
  font-size: 0.9rem; color: var(--kn-ink); margin-bottom: 0.65rem; line-height: 1.5;
}
.segment-list li i { color: var(--kn-accent); margin-top: 0.15rem; flex-shrink: 0; }

/* ---------- About / Company facts ---------- */
.about-fact-card {
  background: #fff; border: 1px solid var(--kn-line); border-radius: var(--kn-radius);
  padding: 1.5rem; height: 100%; text-align: center;
}
.about-fact-num {
  display: block; font-family: var(--font-display); font-weight: 700;
  font-size: 1.6rem; color: var(--kn-accent); margin-bottom: 0.35rem;
  line-height: 1.2;
}
.about-fact-label { font-size: 0.85rem; color: var(--kn-muted); font-weight: 500; }

/* ---------- Process steps ---------- */
.process-step {
  position: relative; background: #fff; border: 1px solid var(--kn-line);
  border-radius: var(--kn-radius); padding: 1.75rem 1.5rem 1.5rem; height: 100%;
}
.process-num {
  position: absolute; top: 1.25rem; right: 1.5rem;
  font-family: var(--font-display); font-weight: 700; font-size: 1.4rem;
  color: var(--kn-line);
}
.process-step i { font-size: 1.5rem; color: var(--kn-accent); margin-bottom: 0.9rem; display: block; }
.process-step h5 { font-size: 1.02rem; margin-bottom: 0.4rem; }
.process-step p { color: var(--kn-muted); font-size: 0.88rem; margin-bottom: 0; }

/* ---------- Brand strip ---------- */
.brand-strip {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; margin-top: 1rem;
}
.brand-chip {
  background: #fff; border: 1px solid var(--kn-line); border-radius: 999px;
  padding: 0.55rem 1.4rem; font-weight: 600; font-size: 0.9rem; color: var(--kn-primary);
}

/* ---------- Testimonials ---------- */
.testimonial-card {
  background: #fff; border: 1px solid var(--kn-line); border-radius: var(--kn-radius);
  padding: 1.75rem; height: 100%;
}
.testimonial-card i.bi-quote { font-size: 1.6rem; color: var(--kn-signal); margin-bottom: 0.75rem; display: block; }
.testimonial-card p { color: var(--kn-ink); font-size: 0.95rem; line-height: 1.65; margin-bottom: 1.25rem; }
.testimonial-author { display: flex; flex-direction: column; }
.testimonial-author strong { color: var(--kn-primary); font-size: 0.92rem; }
.testimonial-author span { color: var(--kn-muted); font-size: 0.8rem; }

/* ---------- Feature boxes ---------- */
.feature-box {
  background: #fff; border: 1px solid var(--kn-line); border-radius: var(--kn-radius);
  padding: 1.5rem; height: 100%;
}
.feature-box i { font-size: 1.5rem; color: var(--kn-accent); margin-bottom: 0.75rem; display: block; }
.feature-box h5 { font-size: 1.02rem; margin-bottom: 0.4rem; }
.feature-box p { color: var(--kn-muted); font-size: 0.9rem; margin-bottom: 0; }

/* ---------- Empty state ---------- */
.empty-state { text-align: center; padding: 3rem 1rem; color: var(--kn-muted); }
.empty-state i { font-size: 2.6rem; color: var(--kn-line); margin-bottom: 1rem; display: block; }

/* ---------- Page header (shop / product) ---------- */
.page-header { background: #fff; border-bottom: 1px solid var(--kn-line); padding: 1.75rem 0; }
.page-header-sm { padding: 1.1rem 0; }
.page-header h1 { font-size: 1.6rem; margin-bottom: 0.25rem; }
.page-header p { color: var(--kn-muted); margin-bottom: 0; font-size: 0.92rem; }
.breadcrumb { font-size: 0.85rem; }
.breadcrumb-item a { color: var(--kn-muted); }
.breadcrumb-item.active { color: var(--kn-primary); font-weight: 600; }

/* ---------- Filters ---------- */
.filter-panel { background: transparent; }
.filter-block { margin-bottom: 1.6rem; }
.filter-title { font-size: 0.85rem; font-weight: 700; color: var(--kn-primary); text-transform: uppercase; letter-spacing: 0.03em; }
.filter-list { max-height: 220px; overflow-y: auto; padding-right: 0.25rem; }
.filter-list .form-check { margin-bottom: 0.4rem; }
.form-check-input:checked { background-color: var(--kn-accent); border-color: var(--kn-accent); }

@media (max-width: 991.98px) {
  .filter-panel.offcanvas-lg { --bs-offcanvas-width: 320px; }
}

/* ---------- Shop toolbar ---------- */
.shop-toolbar { display: flex; align-items: center; margin-bottom: 1.5rem; gap: 0.75rem; }
.sort-select { width: auto; min-width: 170px; }

.kn-pagination .page-link { color: var(--kn-primary); border-color: var(--kn-line); }
.kn-pagination .page-item.active .page-link { background: var(--kn-accent); border-color: var(--kn-accent); }

/* ---------- Product Details ---------- */
.pd-gallery-main {
  position: relative; aspect-ratio: 1 / 1; background: #fff;
  border: 1px solid var(--kn-line); border-radius: var(--kn-radius);
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.pd-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.pd-placeholder { border: none; font-size: 4rem; }
.pd-flag { top: 14px; left: 14px; font-size: 0.75rem; }
.pd-thumbs { display: flex; gap: 0.6rem; margin-top: 0.9rem; flex-wrap: wrap; }
.pd-thumb {
  width: 68px; height: 68px; border-radius: 10px; overflow: hidden;
  border: 2px solid var(--kn-line); padding: 0; background: #fff; cursor: pointer;
}
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pd-thumb.active { border-color: var(--kn-accent); }

.pd-title { font-size: 1.85rem; margin-bottom: 0.4rem; }
.pd-model { font-size: 0.85rem; color: var(--kn-muted); margin-bottom: 0.75rem; }
.pd-rating {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-weight: 700; color: var(--kn-primary); font-size: 0.9rem; margin-bottom: 1rem;
}
.pd-rating i { color: var(--kn-amber); }
.pd-rating .text-muted { font-weight: 500; font-size: 0.82rem; }

.pd-price-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; }
.pd-emi {
  font-size: 0.85rem; color: var(--kn-primary); background: var(--kn-bg);
  border: 1px dashed var(--kn-line); border-radius: 10px;
  padding: 0.55rem 0.9rem; margin: 1rem 0; display: inline-flex; align-items: center; gap: 0.5rem;
}
.pd-emi i { color: var(--kn-accent); }

.pd-variants { margin: 1.5rem 0; }
.variant-group { margin-bottom: 1rem; }
.variant-label { display: block; font-size: 0.8rem; font-weight: 700; color: var(--kn-primary); margin-bottom: 0.5rem; }
.variant-options { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.variant-btn {
  background: #fff; border: 1.5px solid var(--kn-line); border-radius: 8px;
  padding: 0.45rem 1rem; font-size: 0.85rem; font-weight: 600; color: var(--kn-ink);
  cursor: pointer; transition: border-color 0.15s ease, color 0.15s ease;
}
.variant-btn:hover { border-color: var(--kn-accent); }
.variant-btn.active { border-color: var(--kn-accent); background: #eff6ff; color: var(--kn-accent); }
.pd-price { font-family: var(--font-display); font-weight: 700; font-size: 2rem; color: var(--kn-primary); }
.badge-stock { font-size: 0.78rem; font-weight: 700; padding: 0.35rem 0.8rem; border-radius: 999px; }
.badge-stock.in { background: #dcfce7; color: #15803d; }
.badge-stock.out { background: #fee2e2; color: #b91c1c; }
.pd-desc { color: var(--kn-muted); line-height: 1.7; margin-bottom: 1.75rem; }
.pd-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.25rem; }

.pd-spec-sheet { background: #fff; border: 1px solid var(--kn-line); border-radius: var(--kn-radius); padding: 1.5rem; }
.spec-table { margin-bottom: 0; font-size: 0.92rem; }
.spec-table th { color: var(--kn-muted); font-weight: 600; width: 40%; border-color: var(--kn-line); padding: 0.6rem 0.5rem 0.6rem 0; }
.spec-table td { color: var(--kn-ink); font-weight: 500; border-color: var(--kn-line); padding: 0.6rem 0; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }

/* ---------- Footer ---------- */
.site-footer { background: var(--kn-primary); color: #aab6d6; margin-top: 2rem; }
.footer-cta { background: linear-gradient(120deg, var(--kn-accent), #1e40af); color: #fff; padding: 2.5rem 0; }
.footer-cta h3 { color: #fff; font-size: 1.4rem; margin-bottom: 0.3rem; }
.footer-cta p { margin-bottom: 0; color: rgba(255,255,255,0.85); }
.footer-main { padding: 3.5rem 0 2.5rem; }
.footer-brand { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1rem; }
.footer-about { font-size: 0.9rem; line-height: 1.7; max-width: 340px; }
.footer-social { display: flex; gap: 0.6rem; margin-top: 1.25rem; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center; color: #fff;
  transition: background 0.15s ease;
}
.footer-social a:hover { background: var(--kn-accent); }
.footer-heading { color: #fff; font-family: var(--font-display); font-size: 0.95rem; margin-bottom: 1rem; }
.footer-links, .footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 0.6rem; }
.footer-links a { color: #aab6d6; font-size: 0.9rem; }
.footer-links a:hover { color: #fff; }
.footer-contact li { margin-bottom: 0.9rem; font-size: 0.85rem; display: flex; gap: 0.55rem; align-items: flex-start; line-height: 1.6; }
.footer-contact li span { flex: 1; }
.footer-contact i { color: var(--kn-signal); margin-top: 0.2rem; flex-shrink: 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 1.1rem 0; font-size: 0.8rem; }

/* ---------- WhatsApp FAB ---------- */
.whatsapp-fab {
  position: fixed; bottom: 22px; right: 22px; width: 56px; height: 56px;
  border-radius: 50%; background: #25d366; color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; box-shadow: 0 10px 24px -6px rgba(37,211,102,0.6);
  z-index: 1040; transition: transform 0.15s ease;
}
.whatsapp-fab:hover { transform: scale(1.08); color: #fff; }

@media (max-width: 767.98px) {
  .hero { padding: 3rem 0 3.5rem; text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-actions, .hero-stats { justify-content: center; }
  .hero-diagram { margin-top: 1.5rem; }
}