/* ============================================================
   AxEnd Website — Design System & Global Styles
   Colors aligned with AxEnd logo: Blue #1AB6F0 / Green #95C11F
/* ============================================================ */

/* === CSS VARIABLES === */
:root {
  --blue:        #1AB6F0;
  --blue-light:  #E3F2FD;
  --blue-dark:   #0A2540;
  --green:       #95C11F;
  --green-light: #E8F5D9;
  --white:       #FFFFFF;
  --bg-light:    #F5F8FA;
  --body-text:   #5A6B7B;
  --divider:     #E5EBF0;
  --shadow-sm:   0 2px 8px rgba(10,37,64,0.08);
  --shadow-md:   0 4px 20px rgba(10,37,64,0.12);
  --shadow-lg:   0 8px 40px rgba(10,37,64,0.16);
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   16px;
  --transition:  all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-main:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  /* Always reserve scrollbar width so flex container never shifts on hover */
  overflow-y: scroll;
}

body {
  font-family: var(--font-main);
  color: var(--body-text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: clip;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
a:hover { color: var(--blue); }

img { max-width: 100%; display: block; }

h1, h2, h3, h4, h5 {
  color: var(--blue-dark);
  font-weight: 700;
  line-height: 1.2;
}

p { max-width: 68ch; }

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-light); }
::-webkit-scrollbar-thumb { background: var(--blue); border-radius: 3px; }

/* ============================================================
   HEADER / NAV
/* ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--divider);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Nav buttons (top-left) */
.nav-buttons {
  display: flex;
  gap: 8px;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--blue);
  background: var(--blue-light);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  box-sizing: border-box;
  transition: var(--transition);
}

.nav-btn:hover {
  background: var(--blue);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(26,182,240,0.35);
}

.nav-btn.active {
  background: var(--blue);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(26,182,240,0.35);
}

/* Products dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  gap: 6px;
  font-family: inherit;
}

.dropdown-arrow {
  font-size: 10px;
  transition: transform 0.2s ease;
  display: inline-block;
}

.nav-dropdown:hover .dropdown-arrow,
.nav-dropdown.open .dropdown-arrow {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 300px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(10, 37, 64, 0.18);
  padding: 8px 0;
  margin: 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 200;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-item {
  display: block;
  padding: 11px 20px;
  color: var(--dark);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  border-left: 3px solid transparent;
  white-space: nowrap;
  line-height: 1.4;
}

.nav-dropdown-item:hover {
  background: var(--gray);
  color: var(--blue);
  border-left-color: var(--green);
}

/* ---- Nested sub-menu under Ground Security ---- */
.nav-sub-parent {
  position: relative;
}

.sub-arrow {
  font-size: 10px;
  margin-left: 6px;
  display: inline-block;
}

.nav-sub-menu {
  position: absolute;
  top: 0;
  left: calc(100% + 2px);
  min-width: 340px;
  background: #ffffff;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(10, 37, 64, 0.15);
  padding: 6px 0;
  margin: 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 210;
}

.nav-sub-parent:hover .nav-sub-menu,
.nav-sub-parent.open .nav-sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.nav-sub-menu li {
  margin: 0;
  padding: 0;
}

.nav-sub-menu a {
  display: flex;
  align-items: center;
  padding: 10px 18px;
  color: #0A2540;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
  border-left: 3px solid transparent;
  white-space: nowrap;
  line-height: 1.4;
}

.nav-sub-menu a:hover {
  background: #f5f7fa;
  color: #1AB6F0;
  border-left-color: #1AB6F0;
}



/* ---- Airborne Altimeter page - dark purple sub-menu ---- */
body.airborne-altimeter-page .nav-sub-menu {
  background: rgba(26,15,46,0.98);
  border: 1px solid rgba(59,42,92,0.35);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
body.airborne-altimeter-page .nav-sub-menu a {
  color: rgba(255,255,255,0.7);
}
body.airborne-altimeter-page .nav-sub-menu a:hover {
  background: rgba(59,42,92,0.3);
  color: #ffffff;
  border-left-color: #95C11F;
}
body.airborne-altimeter-page .nav-sub-dot {
  box-shadow: 0 0 4px rgba(149,193,31,0.4);
}

/* ---- Drone Security page - deep blue sub-menu ---- */
body.drone-security-page .nav-sub-menu {
  background: rgba(10,37,64,0.98);
  border: 1px solid rgba(26,182,240,0.2);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
body.drone-security-page .nav-sub-menu a {
  color: rgba(255,255,255,0.7);
}
body.drone-security-page .nav-sub-menu a:hover {
  background: rgba(26,182,240,0.15);
  color: #ffffff;
  border-left-color: #1AB6F0;
}
body.drone-security-page .nav-sub-dot {
  box-shadow: 0 0 4px rgba(26,182,240,0.4);
}

/* ---- Intrusion Detection page - deep brick red sub-menu ---- */
body.intrusion-page .nav-sub-menu {
  background: rgba(40,15,8,0.98);
  border: 1px solid rgba(122,46,31,0.3);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
body.intrusion-page .nav-sub-menu a {
  color: rgba(255,255,255,0.7);
}
body.intrusion-page .nav-sub-menu a:hover {
  background: rgba(122,46,31,0.25);
  color: #ffffff;
  border-left-color: #7A2E1F;
}

/* Header right (logo + email) */
.header-right {
  display: flex;
  align-items: center;
  gap: 28px;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}
.logo-img {
  height: 32px;
  width: auto;
  display: block;
  transition: opacity 0.2s ease;
}
.logo-link:hover .logo-img { opacity: 0.85; }

.header-email {
  font-size: 13px;
  color: var(--body-text);
  font-weight: 500;
}
.header-email:hover { color: var(--blue); }

/* ============================================================
   HERO SECTION
/* ============================================================ */
.hero {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--white);
  padding: 60px 40px 40px;
}

/* Decorative background shapes */
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}
.s1 {
  width: 500px; height: 500px;
  background: var(--blue);
  top: -150px; left: -100px;
}
.s2 {
  width: 400px; height: 400px;
  background: var(--green);
  top: -80px; right: -80px;
}
.s3 {
  width: 300px; height: 300px;
  background: var(--blue);
  bottom: -100px; left: 40%;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(40px, 6vw, 76px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 20px;
}

.t-blue  { color: var(--blue); }
.t-green { color: var(--green); }
.hero-for {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 3px solid rgba(220,38,38,0.55);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: rgba(220,38,38,0.70);
  vertical-align: middle;
  margin: -30px 12px 0 12px;
  border-radius: 4px;
}

.hero-sub {
  font-size: clamp(15px, 2vw, 20px);
  color: var(--body-text);
  font-weight: 400;
  margin: 0 auto 28px;
}

.hero-divider {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--green));
  border-radius: 2px;
  margin: 0 auto;
}

/* ============================================================
   5-CARD HOVER EXPAND SECTION
/* ============================================================ */
.cards-section {
  padding: 24px 40px 48px;
  max-width: 1440px;
  margin: 0 auto;
}

.cards-wrapper {
  display: flex;
  gap: 12px;
  height: 340px;
  cursor: default;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.expand-card {
  flex: 1;
  position: relative;
  transition: flex 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.expand-card.is-collapsed {
  flex: 0 0 100px;
}

.expand-card.is-expanded {
  /* Fill remaining space (4 collapsed × 100px = 400px taken, rest goes here) */
  /* This keeps total cards width = container width, no right gap */
  flex: 1 1 0%;
  min-width: 0;
}

.card-inner {
  width: 100%;
  height: 100%;
  background: var(--blue-dark);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px 20px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(26,182,240,0.06) 0%, transparent 60%);
  pointer-events: none;
}

.card-top-bar {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  margin-bottom: 16px;
  flex-shrink: 0;
  background: var(--blue);}

.card-icon {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  margin-bottom: 14px;
  color: var(--blue);}
.card-icon svg { width: 100%; height: 100%; }

.card-body {
  text-align: center;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: var(--transition);
}

.card-body h3 {
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--white);
  margin-bottom: 4px;
}

.card-subtitle {
  font-size: 11px;
  font-weight: 600;
  color: var(--green);
  letter-spacing: 0.04em;
  margin-bottom: 10px;
  transition: var(--transition);
}

.card-desc {
  font-size: 12px;
  color: rgba(255,255,255,0.65);
  line-height: 1.5;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all 0.35s ease;
}

.card-cta {
  display: inline-block;
  margin-top: auto;
  padding: 8px 18px;
  border: 1.5px solid rgba(255,255,255,0.3);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  color: var(--white);
  opacity: 0;
  transform: translateY(6px);
  transition: all 0.3s ease 0.05s;
  white-space: nowrap;
}
.card-cta:hover {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
  transform: translateY(0);
}

/* Multi-CTA group for Ground Security card */
.card-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  opacity: 0;
  transform: translateY(6px);
  transition: all 0.3s ease 0.05s;
}
.is-expanded .card-cta-group {
  opacity: 1;
  transform: translateY(0);
}
.is-collapsed .card-body .card-cta-group { opacity: 0; }

.card-cta-sm {
  display: inline-block;
  padding: 8px 18px;
  border: 1.5px solid rgba(255,255,255,0.25);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.card-cta-sm:hover {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
}

/* Expanded state */
.is-expanded .card-icon  { width: 72px; height: 72px; }
.is-expanded .card-body h3 { font-size: 18px; }
.is-expanded .card-subtitle { font-size: 12px; color: var(--green); }
.is-expanded .card-desc {
  max-height: 120px;
  opacity: 1;
  margin-bottom: 12px;
}
.is-expanded .card-cta {
  opacity: 1;
  transform: translateY(0);
}

/* Collapsed state: hide text, keep each card's own color (slightly darkened) */
.is-collapsed .card-body { pointer-events: none; }
.is-collapsed .card-inner { padding: 24px 6px 20px; }
.is-collapsed .card-body h3 {
  opacity: 1;
  font-size: 14px;
  letter-spacing: 0;
  line-height: 1.2;
  white-space: normal;
  overflow: visible;
  word-spacing: 9999px;
}
.is-collapsed .card-body .card-subtitle,
.is-collapsed .card-body .card-desc,
.is-collapsed .card-body .card-cta { opacity: 0; }
.is-collapsed .card-icon { opacity: 1; width: 40px; height: 40px; margin-bottom: 0; }

/* Collapsed card backgrounds */
.expand-card.is-collapsed:nth-child(1) .card-inner { background: #051828; }
.expand-card.is-collapsed:nth-child(2) .card-inner { background: #051828; }
.expand-card.is-collapsed:nth-child(3) .card-inner { background: #051828; }
.expand-card.is-collapsed:nth-child(4) .card-inner { background: #051828; }
.expand-card.is-collapsed:nth-child(5) .card-inner { background: #051828; }
.expand-card.is-collapsed:nth-child(6) .card-inner { background: #051828; }

/* Expanded card backgrounds — unified brand navy */
.expand-card:nth-child(1) .card-inner { background: #0A2540; }
.expand-card:nth-child(2) .card-inner { background: #0A2540; }
.expand-card:nth-child(3) .card-inner { background: #0A2540; }
.expand-card:nth-child(4) .card-inner { background: #0A2540; }
.expand-card:nth-child(5) .card-inner { background: #0A2540; }
.expand-card:nth-child(6) .card-inner { background: #0A2540; }
/* ============================================================
   Rule: product page hero/header bg = corresponding card color
   See index.html card order:
     child(1) → drone-security.html       → #0A2540  deep-space blue
     child(2) → airborne-altimeter.html   → #3B2A5C  deep purple
     child(3) → intrusion-detection.html  → #7A2E1F  deep brick red
     child(4) → smart-health.html         → #0E3A5C  deep navy gray
     child(5) → smart-home.html           → #0E5446  deep teal green
     child(6) → smart-security.html       → (no rule)
   Sub-products (e.g. drone-detection-radar.html) share parent sector color.
   Collapsed hover variants: drone-sec #061828 | intrusion #5C2317 |
     smart-home #0A3D33 | smart-health #08294A | smart-security (no rule)
   Text on all deep backgrounds: white / brand-green #95C11F

/* ============================================================
   SECTION COMMON
/* ============================================================ */
.section-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 40px;
}

.section-header {
  margin-bottom: 48px;
}
.section-header .eyebrow {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--green);
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* Airborne Altimeter — dark nav bar */
body.airborne-altimeter-page .site-header {
  background: rgba(26,15,46,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(59,42,92,0.3);
}
body.airborne-altimeter-page .nav-btn {
  color: rgba(255,255,255,0.75);
  background: rgba(255,255,255,0.06);
}
body.airborne-altimeter-page .nav-btn:hover {
  background: rgba(59,42,92,0.35);
  color: var(--white);
}
body.airborne-altimeter-page .nav-btn.active {
  background: var(--green);
  color: #0A2540;
}
body.airborne-altimeter-page .nav-dropdown-toggle {
  color: rgba(255,255,255,0.75);
}
body.airborne-altimeter-page .nav-dropdown-menu {
  background: rgba(26,15,46,0.98);
  border: 1px solid rgba(59,42,92,0.35);
}
body.airborne-altimeter-page .nav-dropdown-item {
  color: rgba(255,255,255,0.7);
}
body.airborne-altimeter-page .nav-dropdown-item:hover {
  background: rgba(59,42,92,0.3);
  color: var(--white);
}
body.airborne-altimeter-page .header-email {
  color: rgba(255,255,255,0.5);
}
body.airborne-altimeter-page .header-email:hover {
  color: var(--green);
}

/* Airborne Altimeter — dark footer */
body.airborne-altimeter-page .site-footer {
  background: linear-gradient(180deg, #1A0F2E 0%, #120A22 100%);
  border-top: 1px solid rgba(59,42,92,0.25);
}
body.airborne-altimeter-page .site-footer .footer-info,
body.airborne-altimeter-page .site-footer .footer-tagline {
  color: rgba(255,255,255,0.55);
}
body.airborne-altimeter-page .site-footer .footer-copy {
  color: rgba(255,255,255,0.35);
}


/* Intrusion Detection — dark nav bar */
body.intrusion-page .site-header {
  background: rgba(40,15,8,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(122,46,31,0.25);
}
body.intrusion-page .nav-btn {
  color: rgba(255,255,255,0.75);
  background: rgba(255,255,255,0.06);
}
body.intrusion-page .nav-btn:hover {
  background: rgba(122,46,31,0.3);
  color: var(--white);
}
body.intrusion-page .nav-btn.active {
  background: var(--green);
  color: #0A2540;
}
body.intrusion-page .nav-dropdown-toggle {
  color: rgba(255,255,255,0.75);
}
body.intrusion-page .nav-dropdown-menu {
  background: rgba(40,15,8,0.98);
  border: 1px solid rgba(122,46,31,0.3);
}
body.intrusion-page .nav-dropdown-item {
  color: rgba(255,255,255,0.7);
}
body.intrusion-page .nav-dropdown-item:hover {
  background: rgba(122,46,31,0.25);
  color: var(--white);
}
body.intrusion-page .header-email {
  color: rgba(255,255,255,0.5);
}
body.intrusion-page .header-email:hover {
  color: var(--green);
}

/* Intrusion Detection — dark footer */
body.intrusion-page .site-footer {
  background: linear-gradient(180deg, #2A1210 0%, #1A0A08 100%);
  border-top: 1px solid rgba(122,46,31,0.2);
}
body.intrusion-page .site-footer .footer-info,
body.intrusion-page .site-footer .footer-tagline {
  color: rgba(255,255,255,0.55);
}
body.intrusion-page .site-footer .footer-copy {
  color: rgba(255,255,255,0.35);
}

/* Intrusion Detection — dark breadcrumb */
body.intrusion-page .breadcrumb { background: transparent; padding: 12px 0; }
body.intrusion-page .breadcrumb a { color: rgba(255,255,255,0.6); }
body.intrusion-page .breadcrumb a:hover { color: var(--green); text-decoration: none; }
body.intrusion-page .breadcrumb .sep { color: rgba(255,255,255,0.3); }
body.intrusion-page .breadcrumb .current { color: rgba(255,255,255,0.5); }

/* Smart Home — dark breadcrumb */
body.sh-page .breadcrumb { background: transparent; padding: 12px 0; }
body.sh-page .breadcrumb a { color: rgba(255,255,255,0.6); }
body.sh-page .breadcrumb a:hover { color: var(--green); text-decoration: none; }
body.sh-page .breadcrumb .sep { color: rgba(255,255,255,0.3); }
body.sh-page .breadcrumb .current { color: rgba(255,255,255,0.5); }

.section-header h1 {
  font-size: clamp(28px, 4vw, 48px);
  margin-bottom: 16px;
}
.section-header p {
  font-size: 17px;
  color: var(--body-text);
  line-height: 1.7;
}

/* ============================================================
   PRODUCT CARD GRID
/* ============================================================ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}

.product-card {
  background: var(--white);
  border: 1px solid var(--divider);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--blue);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.product-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: transparent;
}
.product-card:hover::before { transform: scaleX(1); }

.product-card .prod-icon {
  width: 48px; height: 48px;
  background: var(--blue-light);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  color: var(--blue);
}
.product-card h3 {
  font-size: 16px;
  margin-bottom: 6px;
}
.product-card .prod-cat {
  font-size: 11px; color: var(--green); font-weight: 600;
  letter-spacing: 0.05em; margin-bottom: 12px;
}
.product-card p { font-size: 13px; color: var(--body-text); margin-bottom: 16px; }

.prod-specs {
  list-style: none;
  border-top: 1px solid var(--divider);
  padding-top: 12px;
  margin-bottom: 16px;
}
.prod-specs li {
  font-size: 12px;
  color: var(--body-text);
  padding: 3px 0;
  display: flex;
  gap: 6px;
}
.prod-specs li::before {
  content: '✓';
  color: var(--green);
  font-weight: 900;
  flex-shrink: 0;
}

.btn {
  display: inline-block;
  padding: 10px 22px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
}
.btn-primary {
  background: var(--blue);
  color: var(--white);
}
.btn-primary:hover {
  background: #0895d4;
  color: var(--white);
  box-shadow: 0 4px 14px rgba(26,182,240,0.4);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  border-color: var(--blue);
  color: var(--blue);
}
.btn-outline:hover {
  background: var(--blue);
  color: var(--white);
}
.btn-green {
  background: var(--green);
  color: var(--white);
}
.btn-green:hover {
  background: #7fa318;
  color: var(--white);
  box-shadow: 0 4px 14px rgba(149,193,31,0.4);
  transform: translateY(-1px);
}

/* ============================================================
   FEATURE BLOCKS (4-column icons)
/* ============================================================ */
.features-4 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 32px;
  margin: 48px 0;
}
.tech-tabs .features-4 {
  grid-template-columns: repeat(3, 1fr);
}

.feature-item {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.feature-icon {
  width: 52px; height: 52px;
  background: var(--blue-light);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--blue);
  flex-shrink: 0;
}
.feature-item h4 {
  font-size: 15px;
  font-weight: 900;
}
.feature-item p {
  font-size: 13px;
  color: var(--body-text);
  line-height: 1.6;
}

/* ============================================================
   SPEC TABLES
/* ============================================================ */
.spec-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--divider);
  margin: 32px 0;
  box-shadow: var(--shadow-sm);
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.spec-table thead {
  background: var(--blue-dark);
  color: var(--white);
}
.spec-table thead th {
  padding: 14px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.spec-table thead th:first-child { border-radius: var(--radius-md) 0 0 0; }
.spec-table thead th:last-child  { border-radius: 0 var(--radius-md) 0 0; }

.spec-table tbody tr { border-bottom: 1px solid var(--divider); }
.spec-table tbody tr:last-child { border-bottom: none; }
.spec-table tbody tr:nth-child(even) { background: var(--bg-light); }
.spec-table tbody td {
  padding: 11px 16px;
  color: var(--body-text);
  vertical-align: top;
}
.spec-table tbody td:first-child {
  font-weight: 600;
  color: var(--blue-dark);
  white-space: nowrap;
}
.spec-table tbody td:not(:first-child) {
  font-family: 'SF Mono', 'Consolas', monospace;
  font-size: 12px;
}

/* ============================================================
     INQUIRY FORM --- Apple-style
/* ============================================================ */
.inquiry-section {
  background: #ffffff;
  border-radius: 24px;
  padding: 56px 48px 48px;
  margin: 60px 0;
  box-shadow: 0 2px 24px rgba(0,0,0,0.06);
}

.inquiry-form {
  max-width: 640px;
  margin: 0 auto;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 8px;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 12px;
}
.form-field.full { grid-column: 1 / -1; }

/* --- Label (Apple-style: small, semibold) -------------------- */
.form-field label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #1d1d1f;
  margin-bottom: 2px;
}
.form-field label .req { color: #ff3b30; margin-left: 2px; }

/* --- Text inputs (Apple-style: pill-like, clean) ------------- */
.form-field input,
.form-field select,
.form-field textarea {
  padding: 12px 16px;
  border: 1px solid #d2d2d7;
  border-radius: 12px;
  font-size: 15px;
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', system-ui, sans-serif;
  color: #1d1d1f;
  background: #fafafa;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  outline: none;
  caret-color: #007aff;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: #007aff;
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(0,122,255,0.12);
}
.form-field input::placeholder,
.form-field select::placeholder,
.form-field textarea::placeholder {
  color: #86868b;
  font-weight: 400;
}
.form-field textarea { resize: vertical; min-height: 110px; }

/* --- Subject card grid (Apple pill-style) -------------------- */
.radio-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.radio-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: #fafafa;
  border: 1px solid #e8e8ed;
  border-radius: 12px;
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 500;
  color: #1d1d1f;
  transition: all 0.2s ease;
  user-select: none;
  box-sizing: border-box;
  line-height: 1.3;
}
.radio-card:hover {
  border-color: #007aff;
  background: #f0f7ff;
}
.radio-card input[type="checkbox"] {
  width: 13px;
  height: 13px;
  margin: 0;
  cursor: pointer;
  flex-shrink: 0;
  appearance: none;
  -webkit-appearance: none;
  background: #ffffff;
  border: 1.5px solid #c7c7cc;
  border-radius: 3px;
  position: relative;
  transition: all 0.15s ease;
}
.radio-card input[type="checkbox"]:hover {
  border-color: #007aff;
}
.radio-card input[type="checkbox"]:checked {
  background: #007aff;
  border-color: #007aff;
}
.radio-card input[type="checkbox"]:checked::after {
  content: '\2713';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 11px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1;
}
.radio-card input[type="checkbox"]:focus-visible {
  outline: 2px solid rgba(0,122,255,0.5);
  outline-offset: 2px;
}
.radio-card input[type="checkbox"]:checked + span {
  color: #007aff;
  font-weight: 600;
}
.radio-card:has(input[type="checkbox"]:checked) {
  border-color: #007aff;
  background: #f0f7ff;
  box-shadow: 0 0 0 1px rgba(0,122,255,0.2);
}

/* Subject group error state */
.subject-group.error .radio-group {
  outline: 2px solid #ff3b30;
  outline-offset: 4px;
  border-radius: 12px;
}

/* --- Error states (Apple-style: red tint) -------------------- */
.form-field.error input,
.form-field.error select,
.form-field.error textarea {
  border-color: #ff3b30;
  background: #fffbfb;
}
.form-field.error input:focus,
.form-field.error select:focus,
.form-field.error textarea:focus {
  box-shadow: 0 0 0 4px rgba(255,59,48,0.12);
}
.form-error-msg {
  font-size: 11px;
  color: #ff3b30;
  font-weight: 500;
  display: none;
}
.form-field.error .form-error-msg { display: block; }

/* --- Success message ----------------------------------------- */
.form-success {
  background: #f2f8f0;
  border: 1px solid #34c759;
  border-radius: 14px;
  padding: 20px 24px;
  color: #1d1d1f;
  font-weight: 500;
  font-size: 14px;
  display: none;
  margin-bottom: 20px;
}
.form-success.show { display: block; }

/* --- Submit button (Apple-blue) ------------------------------ */
.inquiry-form .btn-primary {
  background: #007aff;
  border: none;
  border-radius: 12px;
  padding: 14px 36px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.01em;
  min-width: 160px;
}
.inquiry-form .btn-primary:hover {
  background: #0066d6;
  box-shadow: 0 2px 12px rgba(0,122,255,0.3);
}
.inquiry-form .btn-primary:active {
  background: #0052b3;
  transform: scale(0.97);
}

/* --- "Other" input field (Apple-style) ----------------------- */
#subject-other-wrap input {
  padding: 10px 14px;
  border: 1px solid #d2d2d7;
  border-radius: 10px;
  font-size: 14px;
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', system-ui, sans-serif;
  color: #1d1d1f;
  background: #fafafa;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  outline: none;
}
#subject-other-wrap input:focus {
  border-color: #007aff;
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(0,122,255,0.12);
}/* ============================================================ */
.inquiry-section {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin: 60px 0;
}

.inquiry-form {
  max-width: 720px;
  margin: 0 auto;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-field.full { grid-column: 1 / -1; }

/* ── Checkbox card selectors (Subject multi-select) ─────────── */
.radio-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.radio-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--white);
  border: 1.5px solid var(--divider);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--body-text);
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  user-select: none;
  box-sizing: border-box;
}
.radio-card:hover {
  border-color: var(--blue);
  box-shadow: 0 0 0 2px rgba(26,182,240,0.12);
}
.radio-card input[type="checkbox"] {
  width: 15px;
  height: 15px;
  margin: 0;
  cursor: pointer;
  flex-shrink: 0;
  /* Replace native checkbox with custom CSS box — eliminates native repaint jitter */
  appearance: none;
  -webkit-appearance: none;
  background: var(--white);
  border: 1.5px solid var(--divider);
  border-radius: 3px;
  position: relative;
  transition: border-color 0.12s ease, background 0.12s ease;
}
.radio-card input[type="checkbox"]:checked {
  background: var(--blue);
  border-color: var(--blue);
}
/* Custom checkmark drawn via CSS pseudo-element */
.radio-card input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  top: 1px;
  left: 4px;
  width: 5px;
  height: 8px;
  border: 1.5px solid var(--white);
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}
.radio-card input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
.radio-card input[type="checkbox"]:hover {
  border-color: var(--blue);
}
.radio-card input[type="checkbox"]:checked + span {
  color: var(--blue-dark);
  font-weight: 600;
}
.radio-card:has(input[type="checkbox"]:checked) {
  border-color: var(--blue);
  background: rgba(26,182,240,0.06);
}

/* Subject group error state */
.subject-group.error .radio-group {
  outline: 2px solid #e53935;
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.form-field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-dark);
}
.form-field label .req { color: #e53935; margin-left: 2px; }

.form-field input,
.form-field select,
.form-field textarea {
  padding: 11px 14px;
  border: 1.5px solid var(--divider);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font-main);
  color: var(--blue-dark);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(26,182,240,0.15);
}
.form-field textarea { resize: vertical; min-height: 120px; }

.form-field.error input,
.form-field.error select,
.form-field.error textarea {
  border-color: #e53935;
  background: #fff5f5;
}
.form-error-msg {
  font-size: 11px;
  color: #e53935;
  display: none;
}
.form-field.error .form-error-msg { display: block; }

.form-success {
  background: var(--green-light);
  border: 1.5px solid var(--green);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  color: #4a7c00;
  font-weight: 600;
  display: none;
  margin-bottom: 20px;
}
.form-success.show { display: block; }

/* ============================================================
   SYSTEM ARCHITECTURE DIAGRAM
/* ============================================================ */
.arch-diagram {
  background: var(--blue-dark);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin: 40px 0;
  position: relative;
  overflow: hidden;
}
.arch-diagram::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(26,182,240,0.15) 0%, transparent 60%);
  pointer-events: none;
}
.arch-title {
  color: var(--white);
  font-size: 18px;
  font-weight: 900;
  margin-bottom: 28px;
  text-align: center;
}
.arch-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.arch-node {
  background: rgba(255,255,255,0.08);
  border: 1.5px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  min-width: 140px;
  transition: var(--transition);
}
.arch-node:hover {
  background: rgba(26,182,240,0.25);
  border-color: var(--blue);
}
.arch-node.highlight {
  background: rgba(149,193,31,0.2);
  border-color: var(--green);
  color: var(--green);
}
.arch-arrow {
  color: rgba(255,255,255,0.4);
  font-size: 20px;
  flex-shrink: 0;
}

/* ============================================================
   PAGE HEADER (inner pages)
/* ============================================================ */
.page-hero {
  background-color: var(--blue-dark);
  background-image: url('pic/About1.webp');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--white);
  padding: 100px 40px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 360px;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  /* Dark mask so white text stays readable; keep brand-blue subtle accent */
  background:
    radial-gradient(ellipse at 50% 100%, rgba(26,182,240,0.15) 0%, transparent 60%),
    linear-gradient(180deg, rgba(10,37,64,0.78) 0%, rgba(10,37,64,0.72) 100%);
  pointer-events: none;
}
.page-hero > * { position: relative; z-index: 1; }

/* Inquiry page hero — uses Inquiry1.webp instead of About1.webp */
.page-hero.inquiry-hero {
  background-image: url('pic/Inquiry1.webp');
}

/* Drone Security page hero — uses Drone1.webp */
.page-hero.drone-security-hero {
  background-image: url('pic/Drone1.webp');
}

/* Airborne Altimeter page hero — uses AA1.webp */
.page-hero.airborne-hero {
  background-image: url('pic/AA1.webp');
}
.page-hero.airborne-hero::before {
  background:
    radial-gradient(ellipse at 50% 100%, rgba(149,193,31,0.08) 0%, transparent 60%),
    linear-gradient(180deg, rgba(26,15,46,0.88) 0%, rgba(26,15,46,0.78) 100%) !important;
}

/* Airborne Altimeter full-width stats strip (moved below breadcrumb) */
.aa-stats-strip-full {
  background: rgba(44,31,68,0.6);
  border-top: 1px solid rgba(149,193,31,0.15);
  border-bottom: 1px solid rgba(149,193,31,0.15);
  padding: 20px 0;
}
.aa-stats-strip-full .aa-stats-strip-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
.aa-stat-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 28px;
  border-right: 1px solid rgba(255,255,255,0.08);
}
.aa-stat-cell:last-child { border-right: none; }
.aa-stat-cell-num { font-size: 19px; font-weight: 800; color: var(--green); line-height: 1; }
.aa-stat-cell-lbl { font-size: 11px; color: rgba(255,255,255,0.5); letter-spacing: 0.06em; text-transform: uppercase; }

/* Airborne Altimeter page — deep purple theme */
body.airborne-altimeter-page {
  background-color: #1A0F2E;
}
body.airborne-altimeter-page .section-page {
  background-color: transparent;
  padding-top: 60px;
}
body.airborne-altimeter-page .breadcrumb { background: transparent; padding: 12px 0; }
body.airborne-altimeter-page .breadcrumb a { color: rgba(255,255,255,0.6); }
body.airborne-altimeter-page .breadcrumb a:hover { color: var(--green); text-decoration: none; }
body.airborne-altimeter-page .breadcrumb .sep { color: rgba(255,255,255,0.3); }
body.airborne-altimeter-page .breadcrumb .current { color: rgba(255,255,255,0.5); }
body.airborne-altimeter-page .section-header h1,
body.airborne-altimeter-page .section-header h2 {
  color: var(--white);
}
body.airborne-altimeter-page .section-header p {
  color: rgba(255,255,255,0.62);
}
body.airborne-altimeter-page .section-header .eyebrow {
  color: var(--green);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* Drone Security product page — deep space blue #0A2540 branding */
body.drone-security-page {
  background-color: var(--blue-dark);
}
body.drone-security-page .section-page {
  background-color: transparent;
}
body.drone-security-page .section-header h1,
body.drone-security-page .section-header h2 {
  color: var(--white);
}
body.drone-security-page .section-header p {
  color: rgba(255,255,255,0.75);
}
body.drone-security-page .feature-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 24px 22px;
  gap: 18px;
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}
body.drone-security-page .feature-item:hover {
  border-color: rgba(149,193,31,0.4);
  background: rgba(149,193,31,0.05);
  transform: translateY(-2px);
}
body.drone-security-page .feature-icon {
  margin-bottom: 4px;
}
body.drone-security-page .product-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
}

/* Product hero image (Drone2 / Drone3) */
.prod-hero-img img {
  width: 50%;
  max-width: 240px;
  min-width: 140px;
  height: auto;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 0;
  margin: 0;
  object-fit: contain;
  background: rgba(0,0,0,0.25);
}

/* Product card image (Drone2 / Drone3) */
.prod-img {
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  display: block;
  margin: -28px -28px 20px -28px;
  width: calc(100% + 56px);
}

/* Scroll-reveal animation for weather badge */
.section-reveal {
  opacity: 0 !important;
  transform: translateY(16px) !important;
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.section-reveal.in-view {
  opacity: 1 !important;
  transform: none !important;
}

/* Platform card hover effect */
.platform-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  display: flex;
  flex-direction: column;
}
.platform-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.45);
}
.platform-card img {
  transition: transform 0.4s ease;
}
.platform-card:hover img {
  transform: scale(1.03);
}
body.drone-security-page .feature-item h4,
body.drone-security-page .product-card h3 {
  color: var(--white);
}
body.drone-security-page .feature-item p,
body.drone-security-page .product-card p {
  color: rgba(255,255,255,0.7);
}
body.drone-security-page .product-card .prod-cat {
  color: var(--green);
}
body.drone-security-page .product-card .prod-specs li {
  color: rgba(255,255,255,0.7);
}
/* Drone Security — dark nav bar */
body.drone-security-page .site-header {
  background: rgba(10,37,64,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(26,182,240,0.15);
}
body.drone-security-page .nav-btn {
  color: rgba(255,255,255,0.75);
  background: rgba(255,255,255,0.06);
}
body.drone-security-page .nav-btn:hover {
  background: rgba(26,182,240,0.2);
  color: var(--white);
}
body.drone-security-page .nav-btn.active {
  background: var(--green);
  color: #0A2540;
}
body.drone-security-page .nav-dropdown-toggle {
  color: rgba(255,255,255,0.75);
}
body.drone-security-page .nav-dropdown-menu {
  background: rgba(10,37,64,0.98);
  border: 1px solid rgba(26,182,240,0.2);
}
body.drone-security-page .nav-dropdown-item {
  color: rgba(255,255,255,0.7);
}
body.drone-security-page .nav-dropdown-item:hover {
  background: rgba(26,182,240,0.15);
  color: var(--white);
}
body.drone-security-page .header-email {
  color: rgba(255,255,255,0.5);
}
body.drone-security-page .header-email:hover {
  color: var(--green);
}

/* Drone Security — dark footer */
body.drone-security-page .site-footer {
  background: linear-gradient(180deg, #0A2540 0%, #061828 100%);
  border-top: 1px solid rgba(26,182,240,0.12);
}
body.drone-security-page .site-footer .footer-info,
body.drone-security-page .site-footer .footer-tagline {
  color: rgba(255,255,255,0.55);
}
body.drone-security-page .site-footer .footer-copy {
  color: rgba(255,255,255,0.35);
}

/* Drone Security — breadcrumb adapts to dark background */
body.drone-security-page .breadcrumb { background: transparent; padding: 12px 0; }
body.drone-security-page .breadcrumb a { color: rgba(255,255,255,0.6); }
body.drone-security-page .breadcrumb a:hover { color: var(--green); text-decoration: none; }
body.drone-security-page .breadcrumb .sep { color: rgba(255,255,255,0.3); }
body.drone-security-page .breadcrumb .current { color: rgba(255,255,255,0.5); }

/* Drone Security — all-weather badge needs subtle border to stand out on dark page bg */
body.drone-security-page .section-page > div[style*="all-weather"],
body.drone-security-page #weather-badge {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
}
body.drone-security-page .arch-diagram {
  border: 1px solid rgba(255,255,255,0.08);
}
.page-hero .eyebrow {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--green);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.page-hero h1 {
  color: var(--white);
  font-size: clamp(28px, 4vw, 52px);
  margin-bottom: 16px;
}
.page-hero p {
  color: rgba(255,255,255,0.7);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   BREADCRUMB
/* ============================================================ */
.breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 40px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb a { color: var(--blue); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { color: var(--body-text); opacity: 0.4; }
.breadcrumb .current { color: var(--body-text); }

/* ============================================================
   PRODUCT DETAIL PAGE
/* ============================================================ */
.prod-detail {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 40px;
}

.prod-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
  align-items: start;
}
.prod-hero-content .eyebrow {
  font-size: 12px; font-weight: 900; letter-spacing: 0.1em;
  color: var(--green); text-transform: uppercase; margin-bottom: 10px;
}
.prod-hero-content h1 {
  font-size: clamp(26px, 3.5vw, 42px);
  margin-bottom: 20px;
}
.prod-hero-content p {
  font-size: 15px; color: var(--body-text); line-height: 1.7; margin-bottom: 28px;
}
.prod-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.prod-visual {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  position: relative;
  overflow: hidden;
}
.prod-visual-placeholder {
  text-align: center;
  color: var(--body-text);
}
.prod-visual-placeholder .pv-icon {
  font-size: 56px;
  margin-bottom: 12px;
  color: var(--blue);
  opacity: 0.6;
}
.prod-visual-placeholder p { font-size: 13px; opacity: 0.7; }

/* Feature tabs */
.feature-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--divider);
  margin-bottom: 32px;
}
.tab-btn {
  padding: 10px 20px;
  border: none;
  background: transparent;
  font-family: var(--font-main);
  font-size: 14px;
  font-weight: 600;
  color: var(--body-text);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
}
.tab-btn:hover { color: var(--blue); }
.tab-btn.active { color: var(--blue); border-bottom-color: var(--blue); }

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn 0.3s ease; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ============================================================
   ABOUT US PAGE
/* ============================================================ */
.about-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 40px;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
  margin-bottom: 60px;
}
.about-text .eyebrow {
  font-size: 12px; font-weight: 900; letter-spacing: 0.1em;
  color: var(--green); text-transform: uppercase; margin-bottom: 10px;
}
.about-text h2 {
  font-size: clamp(24px, 3vw, 36px);
  margin-bottom: 20px;
}
.about-text p {
  font-size: 15px; color: var(--body-text); line-height: 1.8; margin-bottom: 16px;
}
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}
.stat-box {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 20px;
  border-left: 3px solid var(--blue);
}
.stat-box.green { border-left-color: var(--green); }
.stat-box .stat-num {
  font-size: 28px; font-weight: 800; color: var(--blue-dark);
  line-height: 1;
}
.stat-box.green .stat-num { color: var(--green); }
.stat-box .stat-label { font-size: 12px; color: var(--body-text); margin-top: 4px; }

.collab-section {
  background: var(--blue-dark);
  border-radius: var(--radius-lg);
  padding: 48px;
  color: var(--white);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 48px;
}
.collab-content {
  flex: 1 1 60%;
  min-width: 0;
}
.collab-image {
  flex: 0 0 320px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0,0,0,0.35);
}
.collab-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.collab-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 50%, rgba(149,193,31,0.12) 0%, transparent 50%);
  pointer-events: none;
}
.collab-section h2 {
  color: var(--white); font-size: clamp(22px, 3vw, 34px);
  margin-bottom: 8px;
}
.collab-section .collab-tagline {
  font-size: 13px; font-weight: 900; color: var(--green);
  letter-spacing: 0.08em; margin-bottom: 20px;
}
.collab-section p { color: rgba(255,255,255,0.75); font-size: 15px; line-height: 1.8; margin-bottom: 12px; }
.collab-section .email-link {
  display: inline-block;
  margin-top: 16px;
  color: var(--blue);
  font-weight: 900;
  font-size: 16px;
  transition: var(--transition);
}
.collab-section .email-link:hover { color: var(--green); }

/* ============================================================
   FOOTER
/* ============================================================ */
body.placeholder-page {
  background: var(--blue-dark);
  min-height: 100vh;
}

.site-footer {
  background: var(--blue-dark);
  color: rgba(255,255,255,0.65);
  padding: 40px 40px 24px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  text-align: center;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.footer-logo-img {
  height: 32px;
  width: auto;
  display: block;
  margin-bottom: 12px;
}
.footer-logo {
  font-size: 24px; font-weight: 800; letter-spacing: -0.03em;
}
.footer-tagline {
  font-size: 12px; opacity: 0.6; letter-spacing: 0.05em;
}
.footer-info {
  font-size: 13px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}
.footer-info a { color: var(--blue); }
.footer-info a:hover { color: var(--green); }
.footer-sep { opacity: 0.3; }
.footer-copy { font-size: 11px; opacity: 0.4; }

/* ============================================================
   RESPONSIVE
/* ============================================================ */
@media (max-width: 900px) {
  .header-inner { padding: 0 20px; }
  .header-email { display: none; }
  .cards-section { padding: 16px 20px 32px; }
  .cards-wrapper { height: 280px; }
  .section-page, .about-section, .prod-detail { padding: 40px 20px; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .prod-hero { grid-template-columns: 1fr; }
  .inquiry-section { padding: 28px 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .page-hero { padding: 60px 20px 40px; }
  .breadcrumb { padding: 12px 20px; }
  .arch-flow { flex-direction: column; }
  .arch-arrow { transform: rotate(90deg); }
  .footer-info { flex-direction: column; gap: 4px; }
  .footer-sep { display: none; }
}

@media (max-width: 600px) {
  .nav-btn { padding: 6px 14px; font-size: 13px; }
  .cards-wrapper { height: 240px; }
  .about-stats { grid-template-columns: 1fr; }
  .nav-dropdown-menu { min-width: 240px; }
  .nav-dropdown-item { font-size: 13px; padding: 9px 16px; }
  .collab-section { flex-direction: column; padding: 32px 24px; gap: 24px; }
  .collab-image { flex: 0 0 auto; width: 100%; max-width: 320px; }
  .page-hero { padding: 60px 20px 40px; min-height: 280px; }
}
@media (max-width: 900px) {
  .collab-section { flex-direction: column; }
  .collab-image { flex: 0 0 auto; width: 100%; max-width: 320px; }
}


/* ── Drone Security: Dark Spec Table ── */
body.drone-security-page .spec-table-wrap {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  overflow: hidden;
  margin: 32px 0;
}
body.drone-security-page .spec-table { width: 100%; border-collapse: collapse; font-size: 13px; }
body.drone-security-page .spec-table thead {
  background: linear-gradient(135deg,#1AB6F0 0%,#0e6a9e 100%);
  color: #fff;
}
body.drone-security-page .spec-table thead th {
  padding: 14px 18px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: none;
}
body.drone-security-page .spec-table thead th:first-child { border-radius: 16px 0 0 0; }
body.drone-security-page .spec-table thead th:last-child  { border-radius: 0 16px 0 0; }
body.drone-security-page .spec-table tbody tr {
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background 0.2s;
}
body.drone-security-page .spec-table tbody tr:hover { background: rgba(26,182,240,0.08); }
body.drone-security-page .spec-table tbody tr:last-child { border-bottom: none; }
body.drone-security-page .spec-table tbody tr:nth-child(odd) { background: rgba(255,255,255,0.03); }
body.drone-security-page .spec-table tbody tr:nth-child(even) { background: rgba(255,255,255,0.01); }
body.drone-security-page .spec-table tbody tr.section-header-row td {
  background: rgba(10,37,64,0.95) !important;
  color: var(--green) !important;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 10px 18px;
  border-bottom: 1px solid rgba(149,193,31,0.25);
}
body.drone-security-page .spec-table tbody td {
  padding: 12px 18px;
  color: var(--white);
  vertical-align: middle;
  border: none;
}
body.drone-security-page .spec-table tbody td:first-child {
  color: rgba(255,255,255,0.95);
  font-weight: 600;
  white-space: nowrap;
  font-size: 12px;
}
body.drone-security-page .spec-table tbody td:not(:first-child) {
  font-family: 'SF Mono','Consolas',monospace;
  font-size: 12px;
  text-align: center;
  color: #fff;
}
body.drone-security-page .spec-table tbody td:first-child { text-align: left; }