/* Timegate Security Solutions – Main stylesheet
   Navy/charcoal, gold accent, mobile-first, Core Web Vitals friendly */

:root {
  --navy: #0f1729;
  --navy-mid: #1a2744;
  --charcoal: #1e293b;
  --charcoal-light: #334155;
  --gold: #c9a227;
  --gold-light: #d4b84a;
  --blue-accent: #2563eb;
  --white: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --radius: 4px;
  --transition: 0.2s ease;
  --container: min(100% - 2rem, 1140px);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--navy);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--gold);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--gold-light);
}
a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--gold);
  color: var(--navy);
  font-weight: 600;
  z-index: 100;
  transition: top var(--transition);
}
.skip-link:focus {
  top: var(--space-md);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 23, 41, 0.95);
  border-bottom: 1px solid var(--charcoal-light);
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

.logo img {
  width: 160px;
  height: auto;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--charcoal-light);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text);
}
.nav-toggle::before,
.nav-toggle::after {
  content: '';
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition);
}
.nav-toggle[aria-expanded="true"]::before {
  transform: translateY(3.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"]::after {
  transform: translateY(-3.5px) rotate(-45deg);
}

.main-nav {
  display: none;
}
.main-nav.is-open {
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--navy-mid);
  border-bottom: 1px solid var(--charcoal-light);
  padding: var(--space-lg);
}
.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.main-nav a {
  display: block;
  padding: var(--space-sm) 0;
  color: var(--text);
}
.main-nav a:hover {
  color: var(--gold);
}

@media (min-width: 992px) {
  .nav-toggle {
    display: none;
  }
  .main-nav {
    display: block;
  }
  .main-nav.is-open {
    position: static;
    background: transparent;
    border: none;
    padding: 0;
  }
  .main-nav ul {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-md);
  }
  .main-nav a {
    padding: var(--space-xs) var(--space-sm);
  }
}

/* Hero */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--charcoal) url('../assets/hero-banner.jpg') center/cover no-repeat;
  background-color: var(--navy-mid);
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(15, 23, 41, 0.7) 0%, rgba(15, 23, 41, 0.85) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero h1 {
  margin: 0 0 var(--space-lg);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
}

.hero-tagline {
  margin: 0 0 var(--space-xl);
  font-size: 1.125rem;
  color: var(--text-muted);
}

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

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}
.btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--gold);
  color: var(--navy);
}
.btn-primary:hover {
  background: var(--gold-light);
  color: var(--navy);
}
.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--charcoal-light);
}
.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* Sections */
.section {
  padding: var(--space-3xl) var(--space-lg);
}
.section:nth-child(even) {
  background: var(--navy-mid);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
}

.section h2 {
  margin: 0 0 var(--space-lg);
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  color: var(--white);
  font-weight: 700;
}

.lead {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin: 0 0 var(--space-md);
}

.section p {
  margin: 0 0 var(--space-md);
  color: var(--text);
}
.section p:last-child {
  margin-bottom: 0;
}

.section-intro {
  margin-bottom: var(--space-xl);
  color: var(--text-muted);
}

/* Services grid */
.service-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-xl);
}
@media (min-width: 768px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-card {
  padding: var(--space-xl);
  background: var(--charcoal);
  border-radius: var(--radius);
  border: 1px solid var(--charcoal-light);
}
.service-card h3 {
  margin: 0 0 var(--space-md);
  font-size: 1.25rem;
}
.service-card h3 a {
  color: var(--white);
}
.service-card h3 a:hover {
  color: var(--gold);
}
.service-card p {
  margin-bottom: var(--space-md);
}
.link-arrow::after {
  content: ' →';
}

/* Why choose */
.why-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
.why-list li {
  padding-left: 1.5em;
  position: relative;
}
.why-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
}

/* Testimonials */
.testimonial-grid {
  display: grid;
  gap: var(--space-xl);
}
@media (min-width: 768px) {
  .testimonial-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial {
  margin: 0;
  padding: var(--space-xl);
  background: var(--charcoal);
  border-left: 4px solid var(--gold);
  border-radius: var(--radius);
}
.testimonial p {
  margin: 0 0 var(--space-md);
  font-style: italic;
  color: var(--text);
}
.testimonial footer {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Subpage banner */
.page-banner {
  position: relative;
  min-height: 40vh;
  display: flex;
  align-items: center;
  padding: var(--space-2xl) var(--space-lg);
  overflow: hidden;
}
.page-banner-bg {
  position: absolute;
  inset: 0;
  background: var(--charcoal) center/cover no-repeat;
  background-color: var(--navy-mid);
}
.page-banner-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(15, 23, 41, 0.75), rgba(15, 23, 41, 0.9));
}
.page-banner .container {
  position: relative;
  z-index: 1;
}
.page-banner h1 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--white);
}
.breadcrumb {
  margin: 0 0 var(--space-sm);
  font-size: 0.875rem;
}
.breadcrumb a {
  color: var(--text-muted);
}
.breadcrumb a:hover {
  color: var(--gold);
}

/* FAQ list (subpage) */
.faq-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.faq-list li {
  border-bottom: 1px solid var(--charcoal-light);
}
.faq-list summary {
  padding: var(--space-lg) 0;
  cursor: pointer;
  font-weight: 600;
  color: var(--white);
}
.faq-list summary:hover {
  color: var(--gold);
}
.faq-list [data-faq-answer] {
  padding-bottom: var(--space-lg);
  color: var(--text-muted);
}

/* Contact NAP */
.contact-nap {
  margin: var(--space-xl) 0;
}
.contact-nap p {
  margin: 0 0 var(--space-sm);
}

/* Footer */
.site-footer {
  margin-top: auto;
  padding: var(--space-2xl) var(--space-lg);
  background: var(--charcoal);
  border-top: 1px solid var(--charcoal-light);
}

.footer-grid {
  display: grid;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 2fr;
    align-items: start;
  }
}

.footer-brand img {
  margin-bottom: var(--space-md);
}
.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

.footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}
.footer-nav a {
  color: var(--text-muted);
  font-size: 0.875rem;
}
.footer-nav a:hover {
  color: var(--gold);
}

.footer-bottom {
  margin: 0;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--charcoal-light);
  font-size: 0.875rem;
  color: var(--text-muted);
}
.footer-sitemap {
  margin: var(--space-sm) 0 0;
  font-size: 0.875rem;
}

/* Utility */
.industries-preview .container p,
.faq-preview .container p,
.contact-preview .container p {
  margin-bottom: var(--space-md);
}