/* ==========================================================================
   ZUKWEND Sovereign AI Systems — Institutional Design System (theme.css)
   v4.6 Unified Master Release: Deep Navy / Dark Slate, Glassmorphic Panels,
   Electric Blue & Cyan Highlights, Institutional System Sans-Serif
   ========================================================================== */

:root {
  --bg: #0A0F1D;
  --bg-color: #0A0F1D;
  --surface: #111827;
  --surface-card: #111827;
  --surface-border: #1E293B;
  --border: #1E293B;
  --card: #111827;
  --line: #1E293B;

  --accent: #2563EB;
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --brand-accent: #2563EB;
  --cyan: #38BDF8;
  --brand-cyan: #38BDF8;
  --highlight: #38BDF8;
  --ok: #38BDF8;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;

  --txt: #F8FAFC;
  --text-heading: #F8FAFC;
  --text-title: #F8FAFC;
  --mut: #94A3B8;
  --text-body: #94A3B8;
  --text-muted: #94A3B8;
  --text-dim: #64748B;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --header-height: 60px;
}

/* Base Institutional Reset */
html {
  background-color: var(--bg-color);
  color: var(--text-body);
  font-family: var(--font-sans);
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height) !important;
  box-sizing: border-box;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-body);
  font-family: var(--font-sans);
  line-height: 1.6;
  margin: 0;
  padding: 0 !important;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-heading);
  letter-spacing: -0.02em;
  font-weight: 800;
}

/* Header & Mobile Responsive Navigation */
header, .site-header {
  position: sticky !important;
  top: 0 !important;
  z-index: 1000 !important;
  width: 100% !important;
  height: 60px !important;
  max-height: 60px !important;
  min-height: 60px !important;
  background: rgba(10, 15, 29, 0.95) !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  border-bottom: 1px solid var(--surface-border) !important;
  padding: 8px 16px !important;
  box-sizing: border-box !important;
  display: flex !important;
  align-items: center !important;
  overflow: hidden !important;
}

.nav-wrap, .nav-container {
  width: 100% !important;
  max-width: 1200px !important;
  margin: 0 auto !important;
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  flex-wrap: nowrap !important;
  gap: 10px !important;
  height: 100% !important;
  overflow: hidden !important;
}

.logo-group, .brand-group {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo, .brand {
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  text-decoration: none !important;
  color: var(--text-heading) !important;
  font-weight: 800 !important;
  font-size: 1.05rem !important;
  white-space: nowrap !important;
  overflow: hidden !important;
}

.nav-logo, .brand-logo, img.logo-img {
  height: 32px !important;
  width: auto !important;
  max-width: 32px !important;
  object-fit: contain !important;
  vertical-align: middle !important;
  flex-shrink: 0 !important;
}

.brand-text {
  font-size: 1rem;
  font-weight: 800;
  color: #F8FAFC;
  white-space: nowrap;
}

.brand-sub, .brand-tagline {
  font-size: 0.75rem;
  color: var(--brand-cyan);
  white-space: nowrap;
}

.nav-link {
  color: var(--text-body);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--text-heading);
}

.nav-link.radar-link {
  color: var(--brand-cyan) !important;
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(37, 99, 235, 0.35);
  font-weight: 700;
}

/* Minimal Text-Only Language Selector (Codes ONLY: EN, DE, IT, FR, ES, PT) */
.lang-selector {
  display: inline-flex !important;
  align-items: center !important;
  gap: 4px !important;
  flex-shrink: 0 !important;
  white-space: nowrap !important;
}

.lang-link {
  color: var(--text-body) !important;
  text-decoration: none !important;
  font-size: 0.78rem !important;
  font-weight: 700 !important;
  padding: 3px 6px !important;
  border-radius: 4px !important;
  border: 1px solid transparent !important;
  line-height: 1 !important;
  transition: all 0.15s ease !important;
}

.lang-link:hover {
  color: var(--text-heading) !important;
  background: rgba(255, 255, 255, 0.06) !important;
  border-color: var(--surface-border) !important;
}

.lang-link.active {
  color: #FFFFFF !important;
  background: rgba(37, 99, 235, 0.3) !important;
  border-color: var(--brand-primary) !important;
}

.lang-select {
  background: var(--surface-card) !important;
  color: var(--text-heading) !important;
  border: 1px solid var(--surface-border) !important;
  padding: 4px 8px !important;
  border-radius: 6px !important;
  font-size: 0.8rem !important;
  font-weight: 700 !important;
  cursor: pointer !important;
  outline: none !important;
}

/* Surface Cards: Dark Glassmorphic Panels */
.card, .surface-card, .agent-card, .score-panel, .models-box, .model-col, .dossier-card {
  background: var(--surface-card) !important;
  border: 1px solid var(--surface-border) !important;
  border-radius: 12px !important;
}

/* Mobile Viewport Header & Scroll Protection */
@media (max-width: 768px) {
  header, .site-header {
    height: 60px !important;
    max-height: 60px !important;
    min-height: 60px !important;
    padding: 8px 12px !important;
  }
  .nav-wrap, .nav-container {
    gap: 6px !important;
  }
  .logo, .brand {
    font-size: 0.92rem !important;
  }
  .brand-sub, .brand-tagline {
    display: none !important;
  }
  .nav-link {
    font-size: 0.78rem !important;
    padding: 3px 6px !important;
  }
  .lang-selector {
    gap: 2px !important;
  }
  .lang-link {
    font-size: 0.72rem !important;
    padding: 2px 4px !important;
  }
}

/* Strict A4 Print Isolation Shield */
@media print {
  @page {
    size: A4 portrait;
    margin: 8mm 10mm 8mm 10mm;
  }
  html, body {
    height: 100% !important;
    max-height: 275mm !important;
    overflow: hidden !important;
    background: #ffffff !important;
    color: #0f172a !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  body * {
    visibility: hidden !important;
  }
  #execSummaryCard,
  #execSummaryCard * {
    visibility: visible !important;
  }
  #execSummaryCard {
    position: fixed !important;
    left: 0 !important;
    top: 0 !important;
    width: 100% !important;
    max-width: 190mm !important;
    margin: 0 auto !important;
    padding: 0 !important;
    box-shadow: none !important;
    border: none !important;
    background: #ffffff !important;
    z-index: 999999 !important;
    page-break-inside: avoid !important;
    break-inside: avoid !important;
  }
  header, footer, nav, iframe, video,
  .hero-section, .hero-banner, .showcase-section, .trust-center, 
  .pricing-section, .video-container, .sub-sites-grid, .cta-buttons-container,
  .modal-overlay, .btn, button, .no-print,
  .radar-inputs-container, .radar-controls, .radar-header-title,
  .site-header, .site-footer {
    display: none !important;
  }
  a[href]:after {
    content: none !important;
  }
}

/* ==========================================================================
   v5.2 MOBILE PORTRAIT & ZERO HORIZONTAL OVERFLOW SYSTEM ENFORCEMENT
   ========================================================================== */
html, body {
  max-width: 100vw;
  overflow-x: hidden;
}

header, .site-header {
  max-width: 100vw !important;
  overflow-x: hidden !important;
}

/* Hero CTA Mobile Refactor */
.cta {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 12px !important;
  width: 100% !important;
  max-width: 100% !important;
  margin-top: 36px !important;
  padding: 0 16px !important;
  box-sizing: border-box !important;
}

@media (min-width: 640px) {
  .cta {
    flex-direction: row !important;
    flex-wrap: wrap !important;
    gap: 16px !important;
    padding: 0 !important;
  }
}

.btn {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  text-align: center !important;
  box-sizing: border-box !important;
  touch-action: manipulation !important;
  min-height: 44px !important;
  border-radius: 10px !important;
  font-weight: 700 !important;
  text-decoration: none !important;
  font-size: 0.95rem !important;
  padding: 12px 20px !important;
  transition: transform .15s, box-shadow .15s, background .15s !important;
}

@media (max-width: 639px) {
  .cta .btn, .btn.w-full {
    width: 100% !important;
    max-width: 100% !important;
    font-size: 0.95rem !important;
    padding: 12px 16px !important;
  }
}

@media (min-width: 640px) {
  .cta .btn, .btn.sm\:w-auto {
    width: auto !important;
    font-size: 1.05rem !important;
    padding: 15px 28px !important;
  }
}

/* Desktop header defaults */
.lang-selector {
  display: inline-flex !important;
  align-items: center !important;
  gap: 3px !important;
  flex-shrink: 0 !important;
  white-space: nowrap !important;
}

.lang-link {
  color: var(--mut) !important;
  text-decoration: none !important;
  font-size: 0.75rem !important;
  font-weight: 700 !important;
  padding: 2px 4px !important;
  border-radius: 4px !important;
  border: 1px solid transparent !important;
  line-height: 1 !important;
  transition: all 0.15s ease !important;
}

.lang-link:hover {
  color: var(--txt) !important;
  background: rgba(255, 255, 255, 0.06) !important;
}

.lang-link.active {
  color: #FFFFFF !important;
  background: rgba(37, 99, 235, 0.3) !important;
  border-color: #2563EB !important;
}

/* Mobile Viewport Header & Navigation Protection (<640px) */
@media (max-width: 640px) {
  header, .site-header {
    height: 60px !important;
    max-height: 60px !important;
    min-height: 60px !important;
    padding: 6px 8px !important;
    max-width: 100vw !important;
    overflow-x: hidden !important;
    box-sizing: border-box !important;
  }
  .nav-wrap, .nav-container {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    flex-wrap: nowrap !important;
    gap: 4px !important;
    width: 100% !important;
    max-width: 100% !important;
    padding: 0 !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
  .nav-brand-group, header > div > div:first-child {
    display: inline-flex !important;
    align-items: center !important;
    gap: 4px !important;
    flex-shrink: 1 !important;
    min-width: 0 !important;
  }
  .logo, .brand, a.logo {
    display: inline-flex !important;
    align-items: center !important;
    gap: 4px !important;
    font-size: 0.80rem !important;
    flex-shrink: 0 !important;
  }
  .nav-logo, .brand-logo, img.logo-img, header .logo img {
    height: 24px !important;
    width: auto !important;
    max-width: 24px !important;
  }
  .brand-sub, .brand-tagline {
    display: none !important;
  }
  /* On mobile portrait, hide secondary blog link so the CTA/Radar button and language switcher never overflow */
  .nav-link:not(.radar-link):not([href*="radar"]):not(.btn-header):not(.nav-cta) {
    display: none !important;
  }
  /* Header button / CTA Button styling on mobile portrait (<640px) */
  .nav-link.radar-link, .nav-link[href*="radar"], .btn-header, .nav-cta {
    font-size: 11px !important;
    padding: 4px 6px !important;
    min-height: 38px !important;
    line-height: 1.2 !important;
    white-space: nowrap !important;
    flex-shrink: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    touch-action: manipulation !important;
    box-sizing: border-box !important;
    max-width: auto !important;
    border-radius: 6px !important;
  }
  .lang-selector {
    display: inline-flex !important;
    align-items: center !important;
    gap: 1px !important;
    flex-shrink: 0 !important;
  }
  .lang-link {
    font-size: 0.65rem !important;
    padding: 2px 2px !important;
    line-height: 1 !important;
    letter-spacing: -0.02em !important;
  }
}