/**
 * Globalny Spinner z efektem Glassmorphism
 * Dla aplikacji Django/Python
 */

/* CSS Variables dla theme */
:root {
  --spinner-backdrop: rgba(0, 0, 0, 0.4);
  --spinner-glass-bg: rgba(255, 255, 255, 0.15);
  --spinner-glass-border: rgba(255, 255, 255, 0.2);
  --spinner-text-primary: #ffffff;
  --spinner-text-secondary: rgba(255, 255, 255, 0.7);
  --spinner-ring-color: #3b82f6;
  --spinner-ring-track: rgba(255, 255, 255, 0.2);
  --spinner-progress-bg: rgba(255, 255, 255, 0.2);
  --spinner-progress-fill: #3b82f6;
}

/* Dark mode overrides */
[data-theme="dark"],
.dark {
  --spinner-glass-bg: rgba(30, 30, 30, 0.7);
  --spinner-glass-border: rgba(255, 255, 255, 0.1);
}

/* Overlay */
.spinner-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--spinner-backdrop);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.spinner-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Glass Panel */
.spinner-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  padding: 2rem 2.5rem;
  min-width: 280px;
  max-width: 90vw;
  background: var(--spinner-glass-bg);
  border: 1px solid var(--spinner-glass-border);
  border-radius: 1rem;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transform: scale(0.9) translateY(10px);
  transition: transform 0.3s ease;
}

.spinner-overlay.active .spinner-panel {
  transform: scale(1) translateY(0);
}

/* Spinner Ring */
.spinner-ring {
  position: relative;
  width: 56px;
  height: 56px;
}

.spinner-ring svg {
  width: 100%;
  height: 100%;
  animation: spinner-rotate 1.4s linear infinite;
}

.spinner-ring-track {
  fill: none;
  stroke: var(--spinner-ring-track);
  stroke-width: 4;
}

.spinner-ring-progress {
  fill: none;
  stroke: var(--spinner-ring-color);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 150;
  stroke-dashoffset: 100;
  animation: spinner-dash 1.4s ease-in-out infinite;
}

@keyframes spinner-rotate {
  100% {
    transform: rotate(360deg);
  }
}

@keyframes spinner-dash {
  0% {
    stroke-dashoffset: 150;
  }
  50% {
    stroke-dashoffset: 50;
  }
  100% {
    stroke-dashoffset: 150;
  }
}

/* Icon */
.spinner-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

/* Content */
.spinner-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}

.spinner-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--spinner-text-primary);
  letter-spacing: 0.01em;
}

.spinner-description {
  margin: 0;
  font-size: 0.875rem;
  color: var(--spinner-text-secondary);
}

/* Progress Bar */
.spinner-progress {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.spinner-progress-bar {
  width: 100%;
  height: 6px;
  background: var(--spinner-progress-bg);
  border-radius: 3px;
  overflow: hidden;
}

.spinner-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--spinner-progress-fill);
  border-radius: 3px;
  transition: width 0.3s ease;
}

.spinner-progress-text {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--spinner-text-secondary);
  text-align: center;
}

/* Hidden state for progress */
.spinner-progress.hidden {
  display: none;
}