/* ==============================================================================
   NOVA SPACE OBSERVATORY — THEMED UI SYSTEM (css/ui.css)
   Aesthetic: 2px corners, 1px hairline borders, dark glassmorphism, no emoji.
   ============================================================================== */

:root {
  --ui-bg-glass: rgba(6, 12, 24, 0.92);
  --ui-bg-glass-solid: rgba(8, 16, 32, 0.98);
  --ui-border-hairline: 1px solid rgba(92, 200, 255, 0.16);
  --ui-border-active: 1px solid rgba(92, 200, 255, 0.45);
  --ui-accent-cyan: #5cc8ff;
  --ui-accent-success: #10b981;
  --ui-accent-warning: #f59e0b;
  --ui-accent-danger: #ef4444;
  --ui-text-main: #f0f4fc;
  --ui-text-muted: #8ca3c7;
  --ui-text-mono: #6885ab;
  --ui-radius-tech: 2px;
  --ui-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ui-font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
}

/* ==============================================================================
   1. GLOBAL TOP PROGRESS BAR
   ============================================================================== */
#nova-global-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--ui-accent-cyan);
  box-shadow: 0 0 10px var(--ui-accent-cyan), 0 0 4px #fff;
  z-index: 10000;
  transition: width 0.2s ease, opacity 0.3s ease;
  pointer-events: none;
}

/* ==============================================================================
   2. OFFLINE / ONLINE TELEMETRY BANNER
   ============================================================================== */
#nova-network-banner {
  position: fixed;
  top: 64px;
  left: 50%;
  transform: translateX(-50%) translateY(-100%);
  z-index: 9999;
  padding: 6px 18px;
  font-family: var(--ui-font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--ui-radius-tech);
  border: 1px solid;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

#nova-network-banner.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

#nova-network-banner.offline {
  background: rgba(239, 68, 68, 0.18);
  border-color: var(--ui-accent-danger);
  color: #fca5a5;
  box-shadow: 0 4px 20px rgba(239, 68, 68, 0.3);
}

#nova-network-banner.online {
  background: rgba(16, 185, 129, 0.18);
  border-color: var(--ui-accent-success);
  color: #6ee7b7;
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

/* ==============================================================================
   3. THEMED TOAST NOTIFICATION CONTAINER & TOASTS
   ============================================================================== */
#nova-toast-container {
  position: fixed;
  top: 80px;
  right: 24px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  max-width: 420px;
  width: calc(100vw - 32px);
}

@media (max-width: 768px) {
  #nova-toast-container {
    top: 16px;
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    width: calc(100vw - 32px);
    max-width: 380px;
  }
}

.nova-toast {
  position: relative;
  pointer-events: auto;
  background: var(--ui-bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: var(--ui-border-hairline);
  border-radius: var(--ui-radius-tech);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.8), 0 0 1px rgba(92, 200, 255, 0.2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
  animation: nova-toast-in 0.28s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes nova-toast-in {
  from {
    opacity: 0;
    transform: translateY(-12px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .nova-toast {
    animation: none;
    transition: opacity 0.15s ease;
  }
}

.nova-toast-inner {
  display: flex;
  align-items: flex-start;
  padding: 12px 14px 14px;
  gap: 12px;
}

.nova-toast-glyph-badge {
  font-family: var(--ui-font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 3px 6px;
  border-radius: var(--ui-radius-tech);
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 1px;
}

.nova-toast-content {
  flex: 1;
  min-width: 0;
}

.nova-toast-title {
  font-family: var(--ui-font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 2px;
}

.nova-toast-message {
  font-family: var(--ui-font-sans);
  font-size: 12px;
  line-height: 1.45;
  color: var(--ui-text-muted);
  word-break: break-word;
}

.nova-toast-close {
  background: transparent;
  border: none;
  color: var(--ui-text-mono);
  font-family: var(--ui-font-mono);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: var(--ui-radius-tech);
  transition: color 0.15s;
  flex-shrink: 0;
}

.nova-toast-close:hover, .nova-toast-close:focus-visible {
  color: #fff;
  outline: none;
}

/* Toast Progress Bar */
.nova-toast-progress-track {
  height: 2px;
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  position: absolute;
  bottom: 0;
  left: 0;
}

.nova-toast-progress-bar {
  height: 100%;
  width: 100%;
  transform-origin: left center;
  transition: transform linear;
}

/* Type variations */
.nova-toast.success {
  border-left: 3px solid var(--ui-accent-success);
}
.nova-toast.success .nova-toast-glyph-badge {
  background: rgba(16, 185, 129, 0.16);
  color: var(--ui-accent-success);
  border: 1px solid rgba(16, 185, 129, 0.35);
}
.nova-toast.success .nova-toast-progress-bar {
  background: var(--ui-accent-success);
  box-shadow: 0 0 6px var(--ui-accent-success);
}

.nova-toast.error {
  border-left: 3px solid var(--ui-accent-danger);
}
.nova-toast.error .nova-toast-glyph-badge {
  background: rgba(239, 68, 68, 0.16);
  color: var(--ui-accent-danger);
  border: 1px solid rgba(239, 68, 68, 0.35);
}
.nova-toast.error .nova-toast-progress-bar {
  background: var(--ui-accent-danger);
  box-shadow: 0 0 6px var(--ui-accent-danger);
}

.nova-toast.warning {
  border-left: 3px solid var(--ui-accent-warning);
}
.nova-toast.warning .nova-toast-glyph-badge {
  background: rgba(245, 158, 11, 0.16);
  color: var(--ui-accent-warning);
  border: 1px solid rgba(245, 158, 11, 0.35);
}
.nova-toast.warning .nova-toast-progress-bar {
  background: var(--ui-accent-warning);
  box-shadow: 0 0 6px var(--ui-accent-warning);
}

.nova-toast.info {
  border-left: 3px solid var(--ui-accent-cyan);
}
.nova-toast.info .nova-toast-glyph-badge {
  background: rgba(92, 200, 255, 0.16);
  color: var(--ui-accent-cyan);
  border: 1px solid rgba(92, 200, 255, 0.35);
}
.nova-toast.info .nova-toast-progress-bar {
  background: var(--ui-accent-cyan);
  box-shadow: 0 0 6px var(--ui-accent-cyan);
}

/* ==============================================================================
   4. THEMED CONFIRM & PROMPT MODALS
   ============================================================================== */
.nova-ui-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(2, 4, 10, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: nova-modal-fade 0.2s ease forwards;
}

@keyframes nova-modal-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

.nova-ui-modal-window {
  width: 100%;
  max-width: 480px;
  background: var(--ui-bg-glass-solid);
  border: var(--ui-border-hairline);
  border-radius: var(--ui-radius-tech);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.9), 0 0 1px rgba(92, 200, 255, 0.3);
  padding: 24px;
  position: relative;
  animation: nova-modal-scale 0.22s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes nova-modal-scale {
  from { transform: scale(0.96) translateY(-8px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.nova-ui-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.nova-ui-modal-tag {
  font-family: var(--ui-font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ui-accent-cyan);
  text-transform: uppercase;
}

.nova-ui-modal-tag.danger {
  color: var(--ui-accent-danger);
}

.nova-ui-modal-title {
  font-family: var(--ui-font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 8px;
}

.nova-ui-modal-body {
  font-family: var(--ui-font-sans);
  font-size: 13px;
  line-height: 1.55;
  color: var(--ui-text-muted);
  margin-bottom: 20px;
  word-break: break-word;
}

.nova-ui-modal-input {
  width: 100%;
  background: rgba(3, 7, 16, 0.85);
  border: var(--ui-border-hairline);
  border-radius: var(--ui-radius-tech);
  padding: 10px 14px;
  color: #fff;
  font-family: inherit;
  font-size: 13px;
  margin-bottom: 20px;
  outline: none;
  transition: border-color 0.2s;
}

.nova-ui-modal-input:focus {
  border-color: var(--ui-accent-cyan);
  box-shadow: 0 0 10px rgba(92, 200, 255, 0.2);
}

.nova-ui-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.nova-ui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 18px;
  font-family: var(--ui-font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  border-radius: var(--ui-radius-tech);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.nova-ui-btn-cancel {
  background: rgba(255, 255, 255, 0.05);
  color: var(--ui-text-muted);
  border: var(--ui-border-hairline);
}

.nova-ui-btn-cancel:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.nova-ui-btn-confirm {
  background: var(--ui-accent-cyan);
  color: #02040a;
  border: 1px solid var(--ui-accent-cyan);
  font-weight: 700;
}

.nova-ui-btn-confirm:hover {
  background: #75d4ff;
  box-shadow: 0 0 14px rgba(92, 200, 255, 0.35);
}

.nova-ui-btn-danger {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  border: 1px solid var(--ui-accent-danger);
  font-weight: 700;
}

.nova-ui-btn-danger:hover {
  background: var(--ui-accent-danger);
  color: #fff;
  box-shadow: 0 0 16px rgba(239, 68, 68, 0.4);
}

/* ==============================================================================
   5. INLINE FIELD ERRORS & FORM BANNERS
   ============================================================================== */
.has-field-error {
  border-color: var(--ui-accent-danger) !important;
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.3) !important;
}

.nova-field-error-msg {
  font-family: var(--ui-font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--ui-accent-danger);
  margin-top: 5px;
  display: flex;
  align-items: center;
  gap: 4px;
  animation: nova-modal-fade 0.2s ease forwards;
}

.nova-form-banner {
  padding: 10px 14px;
  border-radius: var(--ui-radius-tech);
  font-family: var(--ui-font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nova-form-banner.error {
  background: rgba(239, 68, 68, 0.14);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #fca5a5;
}

.nova-form-banner.success {
  background: rgba(16, 185, 129, 0.14);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: #6ee7b7;
}

.nova-form-banner.warning {
  background: rgba(245, 158, 11, 0.14);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #fcd34d;
}

/* ==============================================================================
   6. BUTTON SPINNER & LOADING STATES
   ============================================================================== */
.btn-spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: btn-spin-anim 0.75s linear infinite;
  vertical-align: middle;
}

@keyframes btn-spin-anim {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Skeleton Loading utility */
.nova-skeleton {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.03) 25%, rgba(255, 255, 255, 0.08) 50%, rgba(255, 255, 255, 0.03) 75%);
  background-size: 200% 100%;
  animation: nova-skeleton-shimmer 1.6s infinite ease-in-out;
  border-radius: var(--ui-radius-tech);
}

@keyframes nova-skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}