/* CNSTECH Cameras/CCTV Service Page Styles */
/* Dark technical aesthetic with cyan/electric blue accents */

/* CSS Variables */
:root {
    --color-dark-bg: #0a0e13;
    --color-dark-surface: #151b23;
    --color-dark-surface-elevated: #1e2732;
    --color-cyan: #00d9ff;
    --color-cyan-light: #4de8ff;
    --color-cyan-dark: #00a8cc;
    --color-electric-blue: #0099ff;
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0aec0;
    --color-text-muted: #6b7280;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --border-radius: 0.5rem;
    --transition: 0.3s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--color-dark-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

/* Header */
.site-header {
    background: rgba(10, 14, 19, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    min-height: 70px;
}

.logo-link {
    display: block;
    line-height: 0;
}

.site-logo {
    height: 40px;
    width: auto;
}

/* Navigation */
.main-nav {
    display: flex;
    align-items: center;
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    width: 40px;
    height: 40px;
    position: relative;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-cyan);
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 8px;
}

.hamburger::before {
    top: 12px;
}

.hamburger::after {
    bottom: 12px;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg);
    top: 19px;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg);
    bottom: 19px;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-menu a {
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-cyan);
    transition: width var(--transition);
}

.nav-menu a:hover,
.nav-menu a:focus {
    color: var(--color-cyan);
    outline: none;
}

.nav-menu a:hover::after,
.nav-menu a:focus::after {
    width: 100%;
}

@media (max-width: 767px) {
    .mobile-nav-toggle {
        display: block;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-dark-surface);
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-md);
        border-bottom: 1px solid rgba(0, 217, 255, 0.1);
        display: none;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }

    .nav-menu a {
        display: block;
        padding: var(--spacing-sm) 0;
    }
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    animation: subtleScan 10s ease-in-out infinite;
}

@keyframes subtleScan {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(10, 14, 19, 0.95) 0%, 
        rgba(10, 14, 19, 0.85) 50%, 
        rgba(0, 153, 255, 0.1) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    padding: var(--spacing-3xl) 0;
}

.hero-eyebrow {
    color: var(--color-cyan);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-cyan-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--color-cyan);
    color: var(--color-dark-bg);
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--color-cyan-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.3);
    outline: none;
}

.btn-secondary {
    background: transparent;
    border-color: var(--color-cyan);
    color: var(--color-cyan);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background: var(--color-cyan);
    color: var(--color-dark-bg);
    outline: none;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid rgba(0, 217, 255, 0.3);
    border-radius: 2rem;
    font-size: 0.875rem;
    color: var(--color-cyan-light);
}

/* Trust Strip */
.trust-strip {
    background: var(--color-dark-surface);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid rgba(0, 217, 255, 0.1);
    border-bottom: 1px solid rgba(0, 217, 255, 0.1);
}

.trust-items {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    gap: var(--spacing-md);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.trust-icon {
    width: 20px;
    height: 20px;
    fill: var(--color-cyan);
    flex-shrink: 0;
}

/* Section Styles */
section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    text-align: center;
    color: var(--color-text-secondary);
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    font-size: 1.125rem;
    line-height: 1.7;
}

/* Solutions Grid */
.solutions-section {
    background: var(--color-dark-surface);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.solution-card {
    background: var(--color-dark-surface-elevated);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 217, 255, 0.1);
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-cyan);
    box-shadow: 0 20px 40px rgba(0, 217, 255, 0.2);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 217, 255, 0.1);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.card-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--color-cyan);
}

.solution-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.solution-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Topology Section */
.topology-section {
    background: linear-gradient(180deg, var(--color-dark-bg) 0%, var(--color-dark-surface) 100%);
}

.topology-diagram {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl) 0;
    max-width: 900px;
    margin: 0 auto;
}

.topology-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-dark-surface-elevated);
    border: 2px solid rgba(0, 217, 255, 0.2);
    border-radius: var(--border-radius);
    transition: var(--transition);
    animation: nodeReveal 0.6s ease-out both;
}

@keyframes nodeReveal {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.topology-node:nth-child(1) { animation-delay: 0.1s; }
.topology-node:nth-child(2) { animation-delay: 0.2s; }
.topology-node:nth-child(3) { animation-delay: 0.3s; }
.topology-node:nth-child(4) { animation-delay: 0.4s; }
.topology-node:nth-child(5) { animation-delay: 0.5s; }
.topology-node:nth-child(6) { animation-delay: 0.6s; }

.topology-node:hover {
    border-color: var(--color-cyan);
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.3);
}

.topology-node svg {
    width: 48px;
    height: 48px;
    fill: var(--color-cyan);
}

.topology-node span {
    font-size: 0.875rem;
    font-weight: 600;
    text-align: center;
    color: var(--color-text-primary);
}

.topology-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.signal-line {
    stroke: var(--color-cyan);
    stroke-width: 2;
    opacity: 0.3;
    stroke-dasharray: 5, 5;
    animation: signalFlow 2s linear infinite;
}

@keyframes signalFlow {
    to {
        stroke-dashoffset: -10;
    }
}

@media (max-width: 767px) {
    .topology-diagram {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .topology-lines {
        display: none;
    }
}

/* Technology Section */
.technology-section {
    background: var(--color-dark-surface);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.tech-category {
    background: var(--color-dark-surface-elevated);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-cyan);
}

.tech-category h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-cyan);
}

.tech-category ul {
    list-style: none;
}

.tech-category li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
    position: relative;
    padding-left: var(--spacing-md);
}

.tech-category li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-cyan);
}

/* Process Section */
.process-section {
    background: linear-gradient(180deg, var(--color-dark-bg) 0%, var(--color-dark-surface) 100%);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.process-step {
    background: var(--color-dark-surface-elevated);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 217, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.process-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--color-cyan);
    transition: height 0.6s ease;
}

.process-step:hover::before {
    height: 100%;
}

.step-number {
    width: 48px;
    height: 48px;
    background: rgba(0, 217, 255, 0.1);
    border: 2px solid var(--color-cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-cyan);
    margin-bottom: var(--spacing-md);
}

.process-step h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.process-step p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Privacy Section */
.privacy-section {
    background: var(--color-dark-surface);
}

.privacy-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.privacy-text h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.privacy-text p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.privacy-note {
    font-size: 0.875rem;
    color: var(--color-cyan);
    font-weight: 600;
}

.privacy-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.privacy-visual svg {
    width: 100%;
    max-width: 300px;
    height: auto;
    color: var(--color-cyan);
    opacity: 0.6;
    animation: securityPulse 3s ease-in-out infinite;
}

@keyframes securityPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

@media (max-width: 767px) {
    .privacy-content {
        grid-template-columns: 1fr;
    }

    .privacy-visual {
        order: -1;
    }
}

/* Video Section */
.video-section {
    background: linear-gradient(180deg, var(--color-dark-bg) 0%, var(--color-dark-surface) 100%);
}

.video-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.video-text h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.video-text p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.video-wrapper {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 2px solid rgba(0, 217, 255, 0.2);
}

.cctv-video {
    width: 100%;
    height: auto;
    display: block;
    background: var(--color-dark-surface-elevated);
}

@media (max-width: 767px) {
    .video-content {
        grid-template-columns: 1fr;
    }
}

/* Related Services */
.related-services {
    background: var(--color-dark-surface);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--color-dark-surface-elevated);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 217, 255, 0.1);
    text-decoration: none;
    transition: var(--transition);
    display: block;
}

.service-card:hover {
    border-color: var(--color-cyan);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.2);
}

.service-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-cyan);
}

.service-card p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* FAQ Section */
.faq-section {
    background: linear-gradient(180deg, var(--color-dark-bg) 0%, var(--color-dark-surface) 100%);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-dark-surface-elevated);
    border: 1px solid rgba(0, 217, 255, 0.1);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
}

.faq-item summary {
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    font-weight: 600;
    color: var(--color-text-primary);
    list-style: none;
    position: relative;
    transition: var(--transition);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    position: absolute;
    right: var(--spacing-lg);
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--color-cyan);
    transition: transform var(--transition);
}

.faq-item[open] summary::after {
    transform: translateY(-50%) rotate(45deg);
}

.faq-item summary:hover,
.faq-item summary:focus {
    background: rgba(0, 217, 255, 0.05);
    color: var(--color-cyan);
    outline: none;
}

.faq-item p {
    padding: 0 var(--spacing-lg) var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.7;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Final CTA */
.final-cta {
    background: linear-gradient(135deg, 
        var(--color-dark-surface) 0%, 
        rgba(0, 153, 255, 0.1) 100%);
    text-align: center;
    padding: var(--spacing-3xl) 0;
}

.cta-content h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.cta-content p {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

/* Footer */
.site-footer {
    background: var(--color-dark-surface);
    border-top: 1px solid rgba(0, 217, 255, 0.1);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer-tagline {
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-size: 0.875rem;
}

.footer-title {
    color: var(--color-cyan);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.footer-nav ul,
.footer-contact ul {
    list-style: none;
}

.footer-nav li,
.footer-contact li {
    margin-bottom: var(--spacing-xs);
}

.footer-nav a,
.footer-contact a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition);
    font-size: 0.875rem;
}

.footer-nav a:hover,
.footer-nav a:focus,
.footer-contact a:hover,
.footer-contact a:focus {
    color: var(--color-cyan);
    outline: none;
}

.footer-contact li {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

@media (max-width: 767px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* Focus Styles */
*:focus-visible {
    outline: 2px solid var(--color-cyan);
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .topology-lines,
    .signal-line {
        animation: none;
    }
}

/* Utility Classes */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Google reviews footer link */
.site-footer .footer-review-link,
footer .footer-review-link,
.cnstech-home-2026 footer .footer-review-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  margin-top: .85rem;
  padding: .58rem .85rem;
  border: 1px solid rgba(0, 214, 255, .35);
  border-radius: 8px;
  background: rgba(0, 214, 255, .08);
  color: #00d6ff;
  font-size: .875rem;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
}

.site-footer .footer-review-link:hover,
footer .footer-review-link:hover,
.cnstech-home-2026 footer .footer-review-link:hover {
  border-color: rgba(0, 214, 255, .65);
  background: rgba(0, 214, 255, .14);
  color: #fff;
}