/* ==========================================================================
   UrbanMotion - Dark Mode Architecture | Czech Republic Edition
   Sidebar Layout | Bottom Interactive Q&A Drawer | Anti-Footprint CSS3
   ========================================================================== */

:root {
  --um-bg-base: #0b1120;
  --um-bg-surface: #131d33;
  --um-bg-surface-elevated: #1a2744;
  --um-bg-sidebar: #0e172a;
  --um-border: #22334f;
  --um-border-hover: #364d73;
  --um-border-accent: #3b82f6;
  --um-blue-bright: #2563eb;
  --um-blue-hover: #1d4ed8;
  --um-blue-vibrant: #3b82f6;
  --um-accent: #6ee7b7;
  --um-accent-hover: #a7f3d0;
  --um-accent-soft: rgba(110, 231, 183, 0.14);
  --um-amber: #fbbf24;
  --um-text-primary: #f8fafc;
  --um-text-secondary: #94a3b8;
  --um-text-muted: #64748b;
  --um-sidebar-width: 290px;
  --um-radius-sm: 8px;
  --um-radius-md: 14px;
  --um-radius-lg: 20px;
  --um-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --um-transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--um-bg-base);
  color-scheme: dark;
}

body {
  font-family: var(--um-font-sans);
  background-color: var(--um-bg-base);
  color: var(--um-text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

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

a {
  color: var(--um-accent);
  text-decoration: none;
  transition: var(--um-transition);
}

a:hover {
  color: #34d399;
  text-decoration: underline;
}

/* ================= Sidebar & Main Layout ================= */
.um-app-shell {
  display: flex;
  min-height: 100vh;
  position: relative;
}

/* Sidebar */
.um-sidebar {
  width: var(--um-sidebar-width);
  background-color: var(--um-bg-sidebar);
  border-right: 1px solid var(--um-border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  padding: 1.5rem 1.25rem;
  z-index: 90;
  flex-shrink: 0;
}

.um-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--um-border);
  text-decoration: none;
}

.um-sidebar-brand:hover {
  text-decoration: none;
}

.um-brand-icon-box {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #10b981 0%, #0369a1 100%);
  border-radius: var(--um-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px var(--um-accent-glow);
  flex-shrink: 0;
}

.um-brand-name-group {
  display: flex;
  flex-direction: column;
}

.um-brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.um-brand-subtitle {
  font-size: 0.75rem;
  color: var(--um-text-secondary);
  font-weight: 500;
}

.um-geo-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: #34d399;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.um-geo-tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

/* Sidebar Navigation Links */
.um-side-nav-heading {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--um-text-muted);
  font-weight: 700;
  margin-bottom: 0.75rem;
  padding-left: 0.5rem;
}

.um-side-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 2rem;
}

.um-side-nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0.85rem;
  border-radius: var(--um-radius-sm);
  color: var(--um-text-secondary);
  font-size: 0.92rem;
  font-weight: 600;
  transition: var(--um-transition);
  border: 1px solid transparent;
}

.um-side-nav-link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: #ffffff;
  text-decoration: none;
}

.um-side-nav-link.is-active {
  background: var(--um-bg-surface-elevated);
  border-color: rgba(59, 130, 246, 0.4);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.um-nav-step-num {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--um-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.um-side-nav-link.is-active .um-nav-step-num {
  background: var(--um-blue-bright);
  color: #ffffff;
}

.um-side-nav-link.nav-highlight {
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(37, 99, 235, 0.12);
  color: #93c5fd;
}

.um-side-nav-link.nav-highlight:hover {
  background: rgba(37, 99, 235, 0.2);
}

.um-side-nav-link.nav-highlight.is-active {
  background: var(--um-blue-bright);
  color: #ffffff;
  font-weight: 700;
}

.um-side-nav-link.nav-highlight.is-active .um-nav-step-num {
  background: #ffffff;
  color: var(--um-blue-bright);
}

/* Sidebar Widgets */
.um-sidebar-footer-widget {
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--um-border);
}

.um-side-contact-box {
  background: var(--um-bg-surface);
  border: 1px solid var(--um-border);
  border-radius: var(--um-radius-sm);
  padding: 0.85rem;
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
}

.um-side-contact-label {
  color: var(--um-accent);
  font-weight: 700;
  margin-bottom: 0.2rem;
}

/* Mobile Header Bar */
.um-mobile-topbar {
  display: none;
  background-color: var(--um-bg-sidebar);
  border-bottom: 1px solid var(--um-border);
  padding: 0.85rem 1.25rem;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.um-mobile-toggle-btn {
  background: var(--um-bg-surface-elevated);
  border: 1px solid var(--um-border);
  color: #ffffff;
  padding: 0.5rem 0.85rem;
  border-radius: var(--um-radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
}

/* Main Content Area */
.um-main-shell {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding-bottom: 80px; /* space for bottom dock */
}

.um-content-container {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: 2.5rem 1.75rem;
}

/* ================= Dark Cards & Sections ================= */
.um-card-dark {
  background: var(--um-bg-surface);
  border: 1px solid var(--um-border);
  border-radius: var(--um-radius-md);
  padding: 2rem;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  margin-bottom: 2rem;
  position: relative;
}

.um-card-dark-highlight {
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: 0 0 25px rgba(37, 99, 235, 0.12);
}

.um-badge-dark {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--um-accent-soft);
  color: #a7f3d0;
  border: 1px solid rgba(110, 231, 183, 0.35);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}

.um-page-title {
  font-size: 2.25rem;
  line-height: 1.25;
  color: #ffffff;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.um-page-lead {
  font-size: 1.12rem;
  color: var(--um-text-secondary);
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

/* ================= Buttons ================= */
.um-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.98rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--um-radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--um-transition);
  text-decoration: none;
}

.um-btn:hover {
  text-decoration: none;
}

.um-btn-emerald {
  background-color: var(--um-blue-bright);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.35);
}

.um-btn-emerald:hover {
  background-color: var(--um-blue-vibrant);
  color: #ffffff;
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.45);
}

.um-btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--um-border);
  color: var(--um-text-primary);
}

.um-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--um-border-hover);
  color: #ffffff;
}

.um-btn-block {
  width: 100%;
}

/* ================= Grids ================= */
.um-grid-two {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 800px) {
  .um-grid-two {
    grid-template-columns: 1fr 1fr;
  }
}

.um-grid-three {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.um-feature-card {
  background: var(--um-bg-surface);
  border: 1px solid var(--um-border);
  border-radius: var(--um-radius-sm);
  padding: 1.5rem;
  transition: var(--um-transition);
}

.um-feature-card:hover {
  border-color: rgba(16, 185, 129, 0.3);
  transform: translateY(-2px);
}

.um-feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: var(--um-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--um-accent);
  margin-bottom: 1rem;
}

.um-feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.um-feature-desc {
  font-size: 0.92rem;
  color: var(--um-text-secondary);
  line-height: 1.6;
}

/* ================= Images, Maps & Figures ================= */
.um-map-frame-box {
  position: relative;
  border-radius: var(--um-radius-sm);
  overflow: hidden;
  border: 1px solid var(--um-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  background: #0d131f;
}

.um-visual-box {
  border-radius: var(--um-radius-md);
  overflow: hidden;
  border: 1px solid var(--um-border);
  margin: 1.75rem 0;
  position: relative;
}

.um-visual-box img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.um-visual-box-caption {
  background: var(--um-bg-surface-elevated);
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: var(--um-text-secondary);
  border-top: 1px solid var(--um-border);
  text-align: center;
}

/* ================= Article Content ================= */
.um-article-body {
  line-height: 1.8;
  font-size: 1.05rem;
  color: #e2e8f0;
}

.um-article-body h2 {
  font-size: 1.6rem;
  color: #ffffff;
  font-weight: 800;
  margin-top: 2.25rem;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.um-article-body h3 {
  font-size: 1.25rem;
  color: #34d399;
  font-weight: 700;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.um-article-body p {
  margin-bottom: 1.35rem;
}

.um-quote-dark {
  background: var(--um-bg-surface-elevated);
  border-left: 4px solid var(--um-accent);
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  border-radius: 0 var(--um-radius-sm) var(--um-radius-sm) 0;
  font-style: italic;
  color: #e2e8f0;
}

.um-quote-author {
  display: block;
  font-style: normal;
  font-weight: 700;
  color: var(--um-accent);
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

/* ================= Certificate Badges ================= */
.um-cert-badge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.um-cert-card {
  background: var(--um-bg-surface-elevated);
  border: 1px solid var(--um-border);
  border-radius: var(--um-radius-sm);
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  transition: var(--um-transition);
}

.um-cert-card:hover {
  border-color: rgba(245, 158, 11, 0.4);
}

.um-cert-seal {
  width: 42px;
  height: 42px;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--um-amber);
  font-size: 1.1rem;
  font-weight: 800;
  flex-shrink: 0;
}

.um-cert-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: #ffffff;
}

.um-cert-sub {
  font-size: 0.75rem;
  color: var(--um-text-secondary);
}

/* ================= Form & Validation ================= */
.um-form-box-dark {
  background: var(--um-bg-surface-elevated);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--um-radius-md);
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.um-input-dark {
  width: 100%;
  padding: 0.85rem 1rem;
  font-size: 1rem;
  border-radius: var(--um-radius-sm);
  border: 1px solid var(--um-border);
  background: var(--um-bg-base);
  color: #ffffff;
  outline: none;
  transition: var(--um-transition);
}

.um-input-dark:focus {
  border-color: var(--um-accent);
  box-shadow: 0 0 0 3px var(--um-accent-glow);
}

.um-input-dark.is-invalid {
  border-color: #ef4444;
  background-color: rgba(239, 68, 68, 0.08);
}

.um-error-feedback {
  display: none;
  font-size: 0.82rem;
  color: #f87171;
  margin-top: 0.35rem;
  font-weight: 500;
}

.um-input-dark.is-invalid + .um-error-feedback {
  display: block;
}

/* ================= Interactive Bottom Q&A Dock ================= */
.um-bottom-dock {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(13, 19, 31, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(16, 185, 129, 0.3);
  padding: 0.75rem 1.5rem;
  z-index: 1000;
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.6);
}

.um-dock-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.um-dock-status {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--um-text-secondary);
}

.um-pulse-glow {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: umPulse 2s infinite;
  flex-shrink: 0;
}

@keyframes umPulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.um-dock-open-btn {
  background: var(--um-accent);
  color: #062b1a;
  border: none;
  font-weight: 700;
  font-size: 0.88rem;
  padding: 0.55rem 1.15rem;
  border-radius: var(--um-radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: var(--um-transition);
}

.um-dock-open-btn:hover {
  background: #34d399;
}

/* Bottom Sliding Drawer (Sheet) */
.um-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
}

.um-drawer-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.um-bottom-drawer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #0d131f;
  border-top: 2px solid var(--um-accent);
  border-radius: 20px 20px 0 0;
  max-height: 80vh;
  overflow-y: auto;
  z-index: 1100;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 2rem 1.5rem 2.5rem 1.5rem;
  box-shadow: 0 -20px 50px rgba(0, 0, 0, 0.8);
}

.um-bottom-drawer.is-open {
  transform: translateY(0);
}

.um-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 980px;
  margin: 0 auto 1.5rem auto;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--um-border);
}

.um-drawer-close-btn {
  background: var(--um-bg-surface-elevated);
  border: 1px solid var(--um-border);
  color: var(--um-text-secondary);
  font-size: 1.25rem;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--um-transition);
}

.um-drawer-close-btn:hover {
  color: #ffffff;
  border-color: #ef4444;
}

.um-drawer-content-box {
  max-width: 980px;
  margin: 0 auto;
}

/* ================= Footer ================= */
.um-footer-dark {
  background: #070a10;
  border-top: 1px solid var(--um-border);
  padding: 3rem 1.75rem 2rem 1.75rem;
  font-size: 0.88rem;
  color: var(--um-text-secondary);
}

.um-footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 980px;
  margin: 0 auto 2rem auto;
}

@media (min-width: 768px) {
  .um-footer-grid {
    grid-template-columns: 1.5fr 1fr;
  }
}

.um-czech-address-box {
  background: var(--um-bg-surface);
  border: 1px solid var(--um-border);
  border-radius: var(--um-radius-sm);
  padding: 1.25rem;
  border-left: 3px solid var(--um-accent);
}

/* Responsive Breakpoints */
@media (max-width: 960px) {
  .um-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  .um-sidebar.is-open {
    transform: translateX(0);
  }
  .um-mobile-topbar {
    display: flex;
  }
  .um-content-container {
    padding: 1.5rem 1.25rem;
  }
}

/* ================= Cookie Consent Banner ================= */
.um-cookie-banner {
  position: fixed;
  bottom: 60px;
  left: 20px;
  right: 20px;
  max-width: 960px;
  margin: 0 auto;
  background: rgba(17, 28, 51, 0.96);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(37, 99, 235, 0.35);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  border-radius: var(--um-radius-md);
  padding: 1.25rem 1.5rem;
  z-index: 1000;
  animation: umSlideUp 0.35s ease-out;
}

@keyframes umSlideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.um-cookie-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.um-cookie-text {
  font-size: 0.88rem;
  line-height: 1.6;
  color: #cbd5e1;
  flex: 1 1 540px;
}

.um-cookie-text strong {
  color: #ffffff;
}

.um-cookie-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .um-cookie-banner {
    bottom: 70px;
    left: 10px;
    right: 10px;
    padding: 1rem;
  }
  .um-cookie-actions {
    width: 100%;
  }
  .um-cookie-actions button {
    flex: 1 1 auto;
    text-align: center;
  }
}

.um-btn-reject-cookie {
  background: rgba(239, 68, 68, 0.12);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.4);
  font-weight: 600;
  border-radius: var(--um-radius-sm);
  cursor: pointer;
  transition: var(--um-transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.um-btn-reject-cookie:hover {
  background: rgba(239, 68, 68, 0.25);
  color: #ffffff;
  border-color: #ef4444;
}