/**
 * OG Shield Security Service - Main Stylesheet
 * Strict Adherence to UI Rules:
 * Rule 1: Restrained Industry-Appropriate Palette (#ffffff, #f8fafc, Slate #0f172a, WCAG 2.1 AA >= 4.5:1)
 * Rule 2: Inter & System Font stack, strict type scale, 8px spacing multiples, line-heights 1.2 / 1.6
 * Rule 3: Subtle borders (#e2e8f0), light shadows, clean SVGs, clear button hierarchy (solid/outline)
 * Rule 4: 150ms-250ms ease-in-out transitions, no scroll hijacking
 * Rule 5: Mobile-first responsive rules, touch targets >= 44x44px
 * Rule 6: Semantic structure & clean code
 * Rule 7: Strict accessibility (visible outline on :focus-visible, explicit labels)
 */

/* Inter loaded via <link> in header.php with display=swap for performance; keep fallback */


:root {
  /* Rule 1: Color Tokens */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  
  /* Text & Contrast (WCAG 2.1 AA compliant) */
  --text-primary: #0f172a;      /* Slate 900 - Contrast 16:1 on white */
  --text-secondary: #334155;    /* Slate 700 - Contrast 9.6:1 on white */
  --text-muted: #475569;        /* Slate 600 - Contrast 6.5:1 on white (Exceeds 4.5:1) */

  /* Restrained B2B Security Accent (Navy/Brass) */
  --primary: #0f172a;           /* Deep Slate / Midnight */
  --primary-hover: #1e293b;     /* 10% lighter/darker state */
  --accent: #926b1d;            /* Restrained Brass/Gold - Contrast 4.8:1 on white */
  --accent-light: #fef9ee;      /* Subtle badge fill */
  --accent-border: #e8d29b;

  /* Rule 3: Borders & Light Shadows */
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.05);

  /* Rule 2: Typography Stack & Scale */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  
  /* Strict 8px Spacing Variables */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-10: 80px;

  /* Radius */
  --radius: 6px;

  /* Rule 4: Fast Ease-in-Out Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

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

/* Rule 7: Accessibility - Focus States */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Rule 2: Strict Typography Scale (12/14/16/20/24/32/48px) */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: 48px; }
h2 { font-size: 32px; }
h3 { font-size: 24px; }
h4 { font-size: 20px; }
h5 { font-size: 16px; }
h6 { font-size: 14px; }

p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.6;
}

small {
  font-size: 14px;
  color: var(--text-muted);
}

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-3);
  padding-right: var(--space-3);
}

.section {
  padding: var(--space-8) 0;
}

.section-light {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-white {
  background-color: var(--bg-primary);
}

.section-accent-tint {
  background-color: var(--bg-tertiary);
  border-top: 1px solid var(--border-strong);
  border-bottom: 1px solid var(--border-strong);
}

.section-header {
  margin-bottom: var(--space-6);
}

.section-header.text-center {
  text-align: center;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.section-header h2 {
  margin-top: var(--space-1);
  margin-bottom: var(--space-2);
}

/* Rule 3: Badge Component */
.badge-clean {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  background-color: var(--accent-light);
  border: 1px solid var(--accent-border);
  padding: 6px 12px;
  border-radius: var(--radius);
  line-height: 1;
}

.badge-live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent);
  display: inline-block;
}

/* Rule 3 & 5: Button System with >=44px Touch Targets */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  font-family: var(--font-family);
  font-size: 14px;
  font-weight: 600;
  min-height: 44px;
  padding: 0 var(--space-3);
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  line-height: 1;
  text-decoration: none;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #ffffff;
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-outline:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--text-primary);
  color: var(--text-primary);
}

.btn-lg {
  min-height: 48px;
  font-size: 16px;
  padding: 0 var(--space-4);
}

.btn-sm {
  min-height: 44px;
  font-size: 14px;
  padding: 0 var(--space-2);
}

/* Top Dispatch Status Bar */
.top-dispatch-bar {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: var(--space-1) 0;
  font-size: 14px;
}

.top-dispatch-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.top-dispatch-left {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  color: var(--text-secondary);
}

.top-dispatch-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.top-dispatch-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  font-weight: 600;
  color: var(--text-primary);
}

.top-dispatch-link:hover {
  color: var(--accent);
}

/* Site Header */
.site-header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
}

.brand-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.02em;
}

.brand-title span {
  color: var(--accent);
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: var(--space-3);
}

.nav-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: var(--space-1) var(--space-1);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-toggle-btn {
  display: none;
  min-height: 44px;
  min-width: 44px;
  padding: 8px;
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  color: var(--text-primary);
  cursor: pointer;
}

/* Rule 3: Asymmetrical Hero Section */
.hero-section {
  padding: var(--space-8) 0;
  background-color: var(--bg-primary);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-6);
  align-items: center;
}

.hero-lead {
  font-size: 20px;
  color: var(--text-secondary);
  margin-top: var(--space-2);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.hero-stats-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}

.stat-item-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.stat-item-label {
  font-size: 14px;
  color: var(--text-muted);
}

/* Card Component (Subtle border + light shadow) */
.card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

/* SIP Values - Asymmetrical Grid */
.sip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.sip-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
}

.sip-card-tag {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: var(--space-1);
}

.sip-card h3 {
  margin-bottom: var(--space-2);
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.service-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.service-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: var(--space-2);
}

/* Why Choose Us Split Layout */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  align-items: center;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.feature-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.feature-row-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

/* Gallery Grid */
.gallery-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.filter-btn {
  min-height: 44px;
  padding: 0 var(--space-2);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--border);
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.gallery-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}

.gallery-card:hover {
  border-color: var(--border-strong);
}

.gallery-visual-box {
  height: 220px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.gallery-info {
  padding: var(--space-2);
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.stars-row {
  display: flex;
  gap: 4px;
  color: var(--accent);
  margin-bottom: var(--space-2);
}

/* FAQs Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background-color: var(--bg-primary);
  overflow: hidden;
}

.faq-question-btn {
  width: 100%;
  min-height: 56px;
  padding: var(--space-2) var(--space-3);
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-family: var(--font-family);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  padding: 0 var(--space-3);
  color: var(--text-secondary);
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: var(--space-3);
}

.faq-chevron {
  transition: transform var(--transition-fast);
  color: var(--text-muted);
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

/* Rule 7: Accessible Form Controls */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--space-2);
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.form-control {
  font-family: var(--font-family);
  font-size: 16px;
  min-height: 44px;
  padding: 0 var(--space-2);
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
  width: 100%;
}

textarea.form-control {
  padding: var(--space-1) var(--space-2);
  min-height: 120px;
  resize: vertical;
}

.form-control:focus {
  border-color: var(--primary);
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

/* Contact & Request Form Asymmetrical Layout */
.contact-layout-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-5);
  align-items: flex-start;
}

.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.contact-info-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-3);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  box-shadow: var(--shadow-sm);
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

/* Floating Actions with >=44px touch targets */
.floating-actions {
  position: fixed;
  bottom: var(--space-3);
  right: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  z-index: 1500;
}

.floating-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  min-height: 44px;
  padding: 0 var(--space-3);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.floating-btn-whatsapp {
  background-color: #16a34a;
  color: #ffffff;
}

.floating-btn-whatsapp:hover {
  background-color: #15803d;
  color: #ffffff;
}

.floating-btn-phone {
  background-color: var(--primary);
  color: #ffffff;
}

.floating-btn-phone:hover {
  background-color: var(--primary-hover);
  color: #ffffff;
}

/* Footer (Semantic and clean) */
.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--space-8) 0 var(--space-4);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.footer-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  color: var(--text-secondary);
}

.footer-link:hover {
  color: var(--accent);
}

.footer-bottom {
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: 14px;
  color: var(--text-muted);
}

/* Mobile Navigation Drawer */
.mobile-nav-drawer {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.4);
  z-index: 2100;
  display: none;
}

.mobile-nav-drawer.open {
  display: block;
}

.mobile-nav-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 85%;
  max-width: 320px;
  background-color: var(--bg-primary);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-md);
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-top: var(--space-3);
}

.mobile-nav-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

/* Lightbox Modal */
.lightbox-modal {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.7);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
}

.lightbox-modal.open {
  display: flex;
}

.lightbox-content {
  background-color: var(--bg-primary);
  border-radius: var(--radius);
  max-width: 760px;
  width: 100%;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.lightbox-close {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  min-height: 44px;
  min-width: 44px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text-primary);
}

/* Flash Alerts */
.flash-alert {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid transparent;
}

.flash-alert.success {
  background-color: #f0fdf4;
  border-color: #bbf7d0;
  color: #166534;
}

.flash-alert.danger {
  background-color: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

.flash-alert.info {
  background-color: #eff6ff;
  border-color: #bfdbfe;
  color: #1e40af;
}

/* Rule 5: Mobile-First Standard Breakpoints (640, 768, 1024, 1280) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .split-layout,
  .contact-layout-grid {
    grid-template-columns: 1fr;
  }
  .sip-grid,
  .services-grid,
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nav-menu, .nav-actions .btn {
    display: none;
  }
  .nav-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  h1 { font-size: 32px; }
  h2 { font-size: 24px; }
  h3 { font-size: 20px; }

  .hero-stats-band {
    grid-template-columns: 1fr;
  }
  .sip-grid,
  .services-grid,
  .gallery-grid,
  .testimonials-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .top-dispatch-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .floating-btn span {
    display: none;
  }
  .floating-btn {
    padding: 0;
    min-width: 48px;
    min-height: 48px;
    justify-content: center;
  }
}