/* ─── LOADING ANIMATIONS ─── */

/* Loading spinner animation */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    z-index: 9999;
    animation: fadeIn 0.3s ease-in-out;
}

/* Loading container */
.loading-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

/* Loading spinner */
.loading-spinner {
    width: 3rem;
    height: 3rem;
    border: 3px solid var(--color-secondary);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

/* Loading spinner small variant */
.loading-spinner-small {
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid var(--color-secondary);
    border-top: 2px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Loading dots */
.loading-dots {
    display: flex;
    gap: var(--spacing-small);
    justify-content: center;
    align-items: center;
}

.loading-dot {
    width: 0.5rem;
    height: 0.5rem;
    background-color: var(--color-primary);
    border-radius: 50%;
    animation: pulse 1.4s ease-in-out infinite;
}

.loading-dot:nth-child(1) { animation-delay: 0s; }
.loading-dot:nth-child(2) { animation-delay: 0.2s; }
.loading-dot:nth-child(3) { animation-delay: 0.4s; }

/* Loading text */
.loading-text {
    color: var(--color-text-70);
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: var(--spacing-medium);
    animation: pulse 2s ease-in-out infinite;
}

/* Inline loading (for buttons) */
.loading-inline {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-small);
}

/* Loading button state */
.button-loading {
    position: relative;
    color: transparent !important;
}

.button-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Loading skeleton for content placeholders */
.loading-skeleton {
    background: linear-gradient(90deg,
        var(--color-neutral) 25%,
        rgba(200, 205, 208, 0.5) 50%,
        var(--color-neutral) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

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

.loading-skeleton-text {
    height: 1rem;
    border-radius: 0.25rem;
    margin-bottom: var(--spacing-small);
}

.loading-skeleton-title {
    height: 1.5rem;
    width: 60%;
    border-radius: 0.25rem;
    margin-bottom: var(--spacing-medium);
}

.loading-skeleton-button {
    height: 3rem;
    width: 8rem;
    border-radius: 0.5rem;
}

/* Card loading state */
.loading-card {
    background-color: var(--color-foreground);
    border-radius: var(--border-radius-medium);
    padding: var(--spacing-large);
    box-shadow: 0px 4px 12px 0px rgba(0, 0, 0, 0.15);
}