:root {
  --deep-azure: #0091D5;
  --deep-azure-rgb: 0, 145, 213;
  --electric-cyan: #40E0D0;
  --vivid-magenta: #E91E63;
  --soft-amber: #FFD54F;
  --dark-charcoal: #0A0A0B;
  --near-black: #050505;
  --white: #FFFFFF;
  --text-gray: #9ca3af;
  --text-light-gray: #d1d5db;
  --border-color: rgba(255, 255, 255, 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', sans-serif;
  scroll-behavior: smooth;
  background-color: var(--dark-charcoal);
  color: var(--white);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

section {
  scroll-margin-top: 80px;
}

::selection {
  background-color: var(--deep-azure);
  color: var(--white);
}

a {
  text-decoration: none;
  color: inherit;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.1;
  font-weight: 800;
}

.text-gradient {
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  background-image: linear-gradient(to right, var(--deep-azure), var(--electric-cyan));
}

.text-gray { color: var(--text-gray); }
.text-light-gray { color: var(--text-light-gray); }

/* Layout Utilities */
.container {
  max-w-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (min-width: 768px) { .container { padding: 0 48px; } }
@media (min-width: 1024px) { .container { padding: 0 96px; } }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-12 { gap: 3rem; }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.pt-32 { padding-top: 8rem; }
.pb-20 { padding-bottom: 5rem; }

.text-center { text-align: center; }

/* Effects */
.gradient-glow {
  position: absolute;
  filter: blur(100px);
  opacity: 0.15;
  z-index: -1;
  border-radius: 50%;
}

.transition-all {
  transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  transition: all 500ms;
  background: transparent;
  padding: 1.5rem 0;
}
.navbar.scrolled {
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 0;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.025em;
}
.logo-container img {
  height: 2.5rem;
  width: auto;
  object-fit: contain;
  transition: transform 300ms;
}
.logo-container:hover img {
  transform: scale(1.05);
}

.nav-links {
  display: none;
}
@media (min-width: 768px) {
  .nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
}
.nav-link {
  color: var(--text-gray);
  font-size: 0.875rem;
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}
.nav-link:hover {
  color: var(--deep-azure);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--deep-azure);
  transition: width 300ms;
}
.nav-link:hover::after {
  width: 100%;
}

.mobile-menu-btn {
  display: block;
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  padding: 0.5rem;
}
@media (min-width: 768px) {
  .mobile-menu-btn { display: none; }
}

.mobile-menu {
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transform-origin: top;
  transform: scaleY(0);
  opacity: 0;
  pointer-events: none;
  transition: all 300ms;
}
.mobile-menu.open {
  transform: scaleY(1);
  opacity: 1;
  pointer-events: auto;
}
@media (min-width: 768px) {
  .mobile-menu { display: none !important; }
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  border: none;
  transition: all 300ms;
}
@media (min-width: 768px) { .btn { font-size: 1rem; } }

.btn span { position: relative; z-index: 10; display: flex; align-items: center; gap: 0.5rem; }
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.2);
  transform: translateY(100%);
  transition: transform 300ms;
  z-index: 1;
}
.btn:hover::before {
  transform: translateY(0);
}

.btn-primary {
  background-color: var(--deep-azure);
  color: white;
  box-shadow: 0 10px 15px -3px rgba(0, 145, 213, 0.2);
}
.btn-primary:hover { filter: brightness(1.1); }

.btn-secondary {
  background-color: var(--electric-cyan);
  color: white;
  box-shadow: 0 10px 15px -3px rgba(64, 224, 208, 0.2);
}
.btn-secondary:hover { filter: brightness(1.1); }

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: white;
}
.btn-outline:hover {
  background: rgba(233, 30, 99, 0.1);
  border-color: var(--vivid-magenta);
  box-shadow: 0 0 20px rgba(233, 30, 99, 0.35);
}
.btn-outline::before { display: none; } /* No hover overlay for outline */

/* Hero Section */
.hero {
  position: relative;
  padding-top: 8rem;
  padding-bottom: 5rem;
  overflow: hidden;
}
@media (min-width: 768px) { .hero { padding-top: 12rem; } }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--electric-cyan);
  background-color: rgba(0, 145, 213, 0.2);
  margin-bottom: 2rem;
}

.hero-title {
  font-size: 3rem;
  margin-bottom: 2rem;
}
@media (min-width: 768px) { .hero-title { font-size: 4.5rem; } }

.hero-video-container {
  position: relative;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  overflow: hidden;
  aspect-ratio: 16/9;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}
.hero-video-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.8;
  transition: transform 1s;
}
.hero-video-container:hover video {
  transform: scale(1.05);
}

/* Sections */
.section-bg-dark {
  background-color: var(--near-black);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-label {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--electric-cyan);
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.25rem;
  margin-bottom: 2rem;
}
@media (min-width: 768px) { .section-title { font-size: 3rem; } }

/* Cards */
.card {
  padding: 2rem;
  border-radius: 1rem;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  transition: all 300ms;
}
.card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-0.5rem);
}
.card-icon-wrapper {
  margin-bottom: 1.5rem;
  padding: 0.75rem;
  border-radius: 0.5rem;
  background-color: rgba(255, 255, 255, 0.05);
  display: inline-block;
  transition: background-color 300ms;
}
.card:hover .card-icon-wrapper {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Security Loop specific image */
.loop-image-container {
  position: relative;
}
.loop-image-container img {
  width: 100%;
  height: auto;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}
.loop-image-glow {
  position: absolute;
  inset: 0;
  background: rgba(0, 145, 213, 0.2);
  filter: blur(120px);
  border-radius: 50%;
  z-index: -1;
}

/* FAQ */
.faq-item {
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  overflow: hidden;
  margin-bottom: 1rem;
  transition: background-color 300ms;
}
.faq-item.open {
  background-color: rgba(255, 255, 255, 0.04);
}
.faq-question {
  width: 100%;
  padding: 1.5rem;
  text-align: left;
  background: none;
  border: none;
  color: white;
  font-size: 1.125rem;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.faq-question:hover { color: var(--deep-azure); }
.faq-icon {
  transition: transform 500ms;
  color: var(--text-gray);
}
.faq-item.open .faq-icon {
  transform: rotate(180deg);
  color: var(--deep-azure);
}
.faq-answer-wrapper {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: all 500ms ease-in-out;
}
.faq-item.open .faq-answer-wrapper {
  max-height: 300px;
  opacity: 1;
}
.faq-answer {
  padding: 0 1.5rem 2rem 1.5rem;
  color: var(--text-gray);
  border-top: 1px solid var(--border-color);
  margin: 0 1.5rem;
  padding-top: 1.5rem;
}

/* Footer */
footer {
  background-color: #000;
  padding: 4rem 1.5rem;
  border-top: 1px solid var(--border-color);
}
.footer-logo img {
  height: 2.5rem;
  filter: grayscale(100%);
  opacity: 0.6;
  transition: all 500ms;
}
.footer-logo:hover img {
  filter: grayscale(0%);
  opacity: 1;
}
.footer-links a {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color 300ms;
}
.footer-links a:hover {
  color: var(--deep-azure);
}