/* Loading Spinner Styles */
:root {
    --spinner-overlay-bg: rgba(255, 255, 255, 0.7);
    --spinner-card-bg: var(--light-card-bg, #ffffff);
    --spinner-text: var(--light-text-color, #2b2b2b);
    --spinner-color-1: #4f46e5; /* indigo */
    --spinner-color-2: #06b6d4; /* cyan */
    --spinner-color-3: #84cc16; /* lime */
}

/* Ensure any legacy spinner overlays are hidden if still present in templates */
#loadingSpinner { display: none !important; }

body.dark-theme {
    --spinner-overlay-bg: rgba(30, 41, 59, 0.7);
    --spinner-card-bg: var(--dark-card-bg, #111827);
    --spinner-text: var(--dark-text-color, #e5e7eb);
}
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--spinner-overlay-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    transform: translateZ(0);
    will-change: opacity, visibility;
    pointer-events: none;
}

/* dark theme handled via CSS variables above */

.spinner-overlay.show {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.spinner-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: var(--spinner-card-bg);
    padding: 1rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-width: 90%;
    width: 200px;
    transform: translateZ(0);
}

/* dark theme handled via CSS variables above */

.spinner-border {
    width: 2rem;
    height: 2rem;
    border-width: 0.2rem;
    color: var(--light-primary-color);
    transform: translateZ(0);
}

body.dark-theme .spinner-border {
    color: var(--dark-primary-color);
}

.spinner-text {
    margin-top: 0.75rem;
    font-weight: 500;
    font-size: 0.875rem;
    text-align: center;
    color: var(--spinner-text);
}

/* dark theme handled via CSS variables above */

/* Progress Bar Styles */
.progress-container {
    width: 100%;
    margin-top: 0.75rem;
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: 0.25rem;
    overflow: hidden;
    height: 0.25rem;
}

body.dark-theme .progress-container {
    background-color: rgba(255, 255, 255, 0.1);
}

.progress-bar {
    height: 100%;
    width: 0%;
    background-color: var(--light-primary-color);
    border-radius: 0.25rem;
    /* Optimized transition with hardware acceleration */
    transition: width 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
    transform: translateZ(0);
    will-change: width;
}

body.dark-theme .progress-bar {
    background-color: var(--dark-primary-color);
}

/* New multi-ring CSS-only spinner */
.new-spinner {
    width: 40px;
    height: 40px;
    position: relative;
}
.new-spinner:before,
.new-spinner:after,
.new-spinner div {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: var(--spinner-color-1);
    animation: spin 1s linear infinite;
}
.new-spinner:after {
    border-top-color: var(--spinner-color-2);
    inset: 6px;
    animation-duration: 0.8s;
}
.new-spinner div {
    border-top-color: var(--spinner-color-3);
    inset: 12px;
    animation-duration: 0.6s;
}

@keyframes spin { to { transform: rotate(360deg); } }